研究者業績

稲本 賢弘

イナモト ヨシヒロ  (yoshihiro inamoto)

基本情報

所属
藤田医科大学 医学部 造血細胞移植・細胞療法学 教授
学位
医学博士

J-GLOBAL ID
202401007871550018
researchmap会員ID
R000069858

論文

 248
  • Seitaro Terakura, Tetsuya Nishida, Yoshihiro Inamoto, Haruhiko Ohashi, Tomoki Naoe, Makoto Murata
    Immunology letters 160(1) 99-101 2014年7月  査読有り
  • Yoshihiro Inamoto, Joseph Pidala, Xiaoyu Chai, Brenda F Kurland, Daniel Weisdorf, Mary E D Flowers, Jeanne Palmer, Sally Arai, David Jacobsohn, Corey Cutler, Madan Jagasia, Jenna D Goldberg, Paul J Martin, Steven Z Pavletic, Georgia B Vogelsang, Stephanie J Lee, Paul A Carpenter
    Arthritis & rheumatology (Hoboken, N.J.) 66(4) 1044-52 2014年4月  
    OBJECTIVE: To investigate the usefulness of various scales for evaluating joint and fascia manifestations in patients with chronic graft-versus-host disease (GVHD) after allogeneic hematopoietic cell transplantation, and to compare the scales in terms of simplicity of use and ability to yield reliable and clinically meaningful results. METHODS: In a prospective, multicenter, longitudinal, observational cohort of patients with chronic GVHD (n = 567), we evaluated 3 scales proposed for assessing joint status: the National Institutes of Health (NIH) joint/fascia scale, the Hopkins fascia scale, and the Photographic Range of Motion (P-ROM) scale. Ten other scales were also tested for assessment of symptoms, quality of life, and physical functions. RESULTS: Joint and fascia manifestations were present at study enrollment in 164 (29%) of the patients. Limited range of motion was most frequent at the wrists or fingers. Among the 3 joint assessment scales, changes in the NIH scale correlated with both clinician- and patient-perceived improvement of joint and fascia manifestations, with higher sensitivity than the Hopkins fascia scale. Changes in all 3 scales correlated with clinician- and patient-perceived worsening, but the P-ROM scale was the most sensitive in this regard. Onset of joint and fascia manifestations was not associated with subsequent mortality. CONCLUSION: Joint and fascia manifestations are common in patients with chronic GVHD and should be assessed carefully in these patients. Our results support the use of the NIH joint/fascia scale and P-ROM scale to assess joint and fascia manifestations. The NIH scale better captures improvement, while the P-ROM scale better captures worsening. The utility of these scales could also be tested in the rheumatic diseases.
  • Jeanne Palmer, Kirsten Williams, Yoshihiro Inamoto, Xiaoyu Chai, Paul J Martin, Linus Santo Tomas, Corey Cutler, Daniel Weisdorf, Brenda F Kurland, Paul A Carpenter, Joseph Pidala, Steven Z Pavletic, William Wood, David Jacobsohn, Sally Arai, Mukta Arora, Madan Jagasia, Georgia B Vogelsang, Stephanie J Lee
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 20(3) 337-44 2014年3月  
    The 2005 National Institutes of Health (NIH) Consensus Conference recommended assessment of lung function in patients with chronic graft-versus-host disease (GVHD) by both pulmonary function tests (PFTs) and assessment of pulmonary symptoms. We tested whether pulmonary measures were associated with nonrelapse mortality (NRM), overall survival (OS), and patient-reported outcomes (PRO). Clinician and patient-reported data were collected serially in a prospective, multicenter, observational study. Available PFT data were abstracted. Cox regression models were fit for outcomes using a time-varying covariate model for lung function measures and adjusting for patient and transplantation characteristics and nonlung chronic GVHD severity. A total of 1591 visits (496 patients) were used in this analysis. The NIH symptom-based lung score was associated with NRM (P = .02), OS (P = .02), patient-reported symptoms (P < .001) and functional status (P < .001). Worsening of NIH symptom-based lung score over time was associated with higher NRM and lower survival. All other measures were not associated with OS or NRM; although, some were associated with patient-reported lung symptoms. In conclusion, the NIH symptom-based lung symptom score of 0 to 3 is associated with NRM, OS, and PRO measures in patients with chronic GVHD. Worsening of the NIH symptom-based lung score was associated with increased mortality.
  • Mitchell Sabloff, Ronald M Sobecks, Kwang Woo Ahn, Xiaochun Zhu, Marcos de Lima, Jennifer R Brown, Yoshihiro Inamoto, H Kent Holland, Mahmoud D Aljurf, Mary J Laughlin, Rammurti T Kamble, Jack W Hsu, Baldeep M Wirk, Matthew Seftel, Ian D Lewis, Mukta Arora, Edwin P Alyea, Matt E Kalaycio, Jorge Cortes, Richard T Maziarz, Robert Peter Gale, Wael Saber
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 20(3) 421-4 2014年3月  
    An allogeneic hematopoietic cell transplantation from an HLA-identical donor after high-dose (myeloablative) pretransplantation conditioning is an effective therapy for some people with chronic lymphocytic leukemia (CLL). Because CLL is a highly radiosensitive cancer, we hypothesized that total body irradiation (TBI) conditioning regimens may be associated with better outcomes than those without TBI. To answer this, we analyzed data from 180 subjects with CLL receiving myeloablative doses of TBI (n = 126) or not (n = 54), who received transplants from an HLA-identical sibling donor between 1995 and 2007 and reported to the Center for International Blood & Marrow Transplant Research. At 5 years, treatment-related mortality was 48% (95% confidence interval [CI], 39% to 57%) versus 50% (95% CI, 36% to 64%); P = NS. Relapse rates were 17% (95% CI, 11% to 25%) versus 22% (95% CI, 11% to 35%); P = NS. Five-year progression-free survival and overall survival were 34% (95% CI, 26% to 43%) versus 28% (95% CI, 15% to 42%); P = NS and 42% (95% CI, 33% to 51%) versus 33% (95% CI, 19% to 48%); P = NS, respectively. The single most common cause of death in both cohorts was recurrent/progressive CLL. No variable tested in the multivariate analysis was found to significantly affect these outcomes, including having failed fludarabine. Within the limitations of this study, we found no difference in HLA-identical sibling transplantation outcomes between myeloablative TBI and chemotherapy pretransplantation conditioning in persons with CLL.
  • Yoshihiro Inamoto, Paul J Martin, Barry E Storer, Marco Mielcarek, Rainer F Storb, Paul A Carpenter
    Haematologica 99(2) 385-91 2014年2月  
    We evaluated short-term response endpoints for acute graft-versus-host disease treatment trials. We postulated that response endpoints should correlate with reduced symptom burden and decreased subsequent treatment failure, defined as non-relapse mortality, recurrent malignancy, or additional systemic treatment. The cohort included 303 consecutive patients who received initial systemic steroid treatment for acute graft-versus-host disease. Response was evaluated at day 28 after initial treatment, which in all cases preceded the onset of chronic graft-versus-host disease. At day 28, 36% of patients had a complete response, 26% had a very good partial response, 10% had another degree of partial response (other partial response) and 28% had no response. As expected, the symptom burden was lower in patients with very good partial response compared to those with other partial response. The frequencies of subsequent treatment failure were similar in patients with complete and very good partial responses, but lower than in patients with other partial response or no response at day 28. The frequency of second-line treatment was lower in patients with very good partial response than in those with other partial response. Risk factors associated with a lower probability of complete or very good partial response at day 28 were unrelated or human leukocyte antigen-mismatched related donor grafts and liver or gastrointestinal involvement at onset of initial treatment. Taken together, these results suggest that endpoints in acute graft-versus-host disease treatment trials should distinguish between very good partial response and other partial response. Our results support the use of complete or very good partial response at day 28 as an appropriate short-term primary endpoint.
  • Eric J Chow, K Scott Baker, Stephanie J Lee, Mary E D Flowers, Kara L Cushing-Haugen, Yoshihiro Inamoto, Nandita Khera, Wendy M Leisenring, Karen L Syrjala, Paul J Martin
    Journal of clinical oncology : official journal of the American Society of Clinical Oncology 32(3) 191-8 2014年1月20日  
    PURPOSE: To determine the influence of modifiable lifestyle factors on the risk of cardiovascular disease after hematopoietic cell transplantation (HCT). PATIENTS AND METHODS: HCT survivors of ≥ 1 year treated from 1970 to 2010 (n = 3,833) were surveyed from 2010 to 2011 on current cardiovascular health and related lifestyle factors (smoking, diet, recreational physical activity). Responses (n = 2,362) were compared with those from a matched general population sample (National Health and Nutrition Examination Survey [NHANES]; n = 1,192). RESULTS: Compared with NHANES participants, HCT survivors (median age, 55.9 years; median 10.8 years since HCT; 71.3% allogeneic) had higher rates of cardiomyopathy (4.0% v 2.6%), stroke (4.8% v 3.3%), dyslipidemia (33.9% v 22.3%), and diabetes (14.3% v 11.7%; P < .05 for all comparisons). Prevalence of hypertension was similar (27.9% v 30.0%), and survivors were less likely to have ischemic heart disease (6.1% v 8.9%; P < .01). Among HCT survivors, hypertension, dyslipidemia, and diabetes were independent risk factors for ischemic heart disease and cardiomyopathy, and smoking was associated with ischemic heart disease and diabetes (odds ratios [ORs], 1.8 to 2.1; P = .02). Obesity was a risk factor for post-transplantation hypertension, dyslipidemia, and diabetes (ORs ≥ 2.0; P < .001). In contrast, lower fruit/vegetable intake was associated with greater risk of dyslipidemia and diabetes (ORs, 1.4 to 1.8; P ≤ .01), and lower physical activity level was associated with greater risk of hypertension and diabetes (ORs, 1.4 to 1.5; P < .05). Healthier lifestyle characteristics among HCT survivors attenuated risk of all cardiovascular conditions assessed. CONCLUSION: Attention of clinicians to conventional cardiovascular risk factors and modifiable lifestyle characteristics offers hope of reducing serious cardiovascular morbidity after HCT.
  • Yoshihiro Inamoto, Dennis D Kim, Barry E Storer, Joon Ho Moon, Jeffrey H Lipton, John Kuruvilla, Paul J Martin, Mary E D Flowers
    Blood 123(3) 453-5 2014年1月16日  
  • Edward A Copelan, Betty K Hamilton, Belinda Avalos, Kwang Woo Ahn, Brian J Bolwell, Xiaochun Zhu, Mahmoud Aljurf, Koen van Besien, Christopher Bredeson, Jean-Yves Cahn, Luciano J Costa, Marcos de Lima, Robert Peter Gale, Gregory A Hale, Joerg Halter, Mehdi Hamadani, Yoshihiro Inamoto, Rammurti T Kamble, Mark R Litzow, Alison W Loren, David I Marks, Eduardo Olavarria, Vivek Roy, Mitchell Sabloff, Bipin N Savani, Matthew Seftel, Harry C Schouten, Celalettin Ustun, Edmund K Waller, Daniel J Weisdorf, Baldeep Wirk, Mary M Horowitz, Mukta Arora, Jeff Szer, Jorge Cortes, Matt E Kalaycio, Richard T Maziarz, Wael Saber
    Blood 122(24) 3863-70 2013年12月5日  
    Cyclophosphamide combined with total body irradiation (Cy/TBI) or busulfan (BuCy) are the most widely used myeloablative conditioning regimens for allotransplants. Recent data regarding their comparative effectiveness are lacking. We analyzed data from the Center for International Blood and Marrow Transplant Research for 1230 subjects receiving a first hematopoietic cell transplant from a human leukocyte antigen-matched sibling or from an unrelated donor during the years 2000 to 2006 for acute myeloid leukemia (AML) in first complete remission (CR) after conditioning with Cy/TBI or oral or intravenous (IV) BuCy. Multivariate analysis showed significantly less nonrelapse mortality (relative risk [RR] = 0.58; 95% confidence interval [CI]: 0.39-0.86; P = .007), and relapse after, but not before, 1 year posttransplant (RR = 0.23; 95% CI: 0.08-0.65; P = .006), and better leukemia-free survival (RR = 0.70; 95% CI: 0.55-0.88; P = .003) and survival (RR = 0.68; 95% CI: 0.52-0.88; P = .003) in persons receiving IV, but not oral, Bu compared with TBI. In combination with Cy, IV Bu is associated with superior outcomes compared with TBI in patients with AML in first CR.
  • Yoshihiro Inamoto, Yuta Kaga, Yoshihiro Nishimoto, Makoto Yasuda, Akio Baba
    Organic letters 15(13) 3452-5 2013年7月5日  
    The indium triiodide catalyzed single-stage cascade reaction of N-sulfonyl amides with hydrosilanes and two types of organosilicon nucleophiles such as silyl cyanide and silyl enolates selectively promoted deoxygenative functionalization to give α-cyanoamines and β-aminocarbonyl compounds, respectively.
  • Yoshihiro Inamoto, Barry E Storer, Effie W Petersdorf, J Lee Nelson, Stephanie J Lee, Paul A Carpenter, Brenda M Sandmaier, John A Hansen, Paul J Martin, Mary E D Flowers
    Blood 121(25) 5098-103 2013年6月20日  
    Sclerotic chronic graft-versus-host disease (GVHD) can result in disability after allogeneic hematopoietic cell transplantation. We assessed the incidence and risk factors of sclerosis and its association with transplant outcomes among 977 consecutive patients treated with systemic immunosuppression for chronic GVHD. Sclerosis was defined when cutaneous sclerosis, fasciitis, or joint contracture was first documented in the medical record. Seventy (7%) patients presented with sclerosis at the time of initial systemic treatment for chronic GVHD, and the cumulative incidence of sclerosis increased to 20% at 3 years. Factors associated with an increased risk of sclerosis included the use of a mobilized blood cell graft and a conditioning regimen with > 450 cGy total body irradiation. Factors associated with a decreased risk of sclerosis included the use of an HLA-mismatched donor and a major ABO-mismatched donor. Development of sclerosis was associated with longer time to withdrawal of immunosuppressive treatment but not with risks of overall mortality, nonrelapse mortality, or recurrent malignancy. We found a substantial incidence of sclerosis in patients with chronic GVHD. Development of sclerosis can cause disability but does not affect mortality or recurrent malignancy in patients with chronic GVHD.
  • Merav Bar, Brenda M Sandmaier, Yoshihiro Inamoto, Benedetto Bruno, Parameswaran Hari, Thomas Chauncey, Paul J Martin, Rainer Storb, David G Maloney, Barry Storer, Mary E D Flowers
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 19(6) 949-57 2013年6月  
    The impact of donor lymphocyte infusion (DLI) initial cell dose on its outcome is known in patients with chronic myeloid leukemia but limited in patients with other hematological malignancies. In this retrospective study, we evaluated the effect of initial DLI CD3(+) cell dose on graft-versus-host disease (GVHD) and overall survival after DLI given for relapse of any hematological malignancies after allogeneic hematopoietic cell transplantation (HCT) with high- or reduced-intensity conditioning. The cohort included 225 patients. Initial DLI CD3(+) cell dose per kilogram of recipient body weight was ≤ 1 × 10(7) (n = 84; group A), >1.0 to <10 × 10(7) (n = 58; group B), and ≥ 10 × 10(7) (n = 66; group C). The initial cell dose was unknown for the remaining 17 patients. Cumulative incidence rates of GVHD at 12 months after DLI were 21%, 45%, and 55% for groups A, B, and C, respectively. Multivariate analysis showed that initial DLI CD3(+) cell ≥ 10 × 10(7) dose per kilogram is associated with an increased risk of GVHD after DLI (P = .03). Moreover, an initial DLI CD3(+) cell dose of 10 × 10(7) or higher did not decrease the risk of relapse and did not improve overall survival. Thus, these results support the use of less than 10 × 10(7) CD3(+) cell per kilogram as the initial cell dose of DLI for treatment of persistent or recurrent hematological malignancy after HCT.
  • Joseph Pidala, Xiaoyu Chai, Paul Martin, Yoshihiro Inamoto, Corey Cutler, Jeanne Palmer, Daniel Weisdorf, Steven Pavletic, Mukta Arora, Madan Jagasia, David Jacobsohn, Stephanie J Lee
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 19(6) 967-72 2013年6月  
    Hand grip strength (HGS) and the 2-minute walk test (2MWT) have been proposed as elements of chronic graft-versus-host disease (GVHD) assessment in clinical trials. Using all available data (n = 584 enrollment visits, 1689 follow-up visits, total of 2273 visits) from a prospective observational cohort study, we explored the relationship between HGS and 2MWT and patient-reported measures (Lee symptom scale, MOS 36-Item Short-Form Health Survey [SF-36], and Functional Assessment of Cancer Therapy [FACT]-Bone Marrow Transplantation quality of life instruments and Human Activity Profile [HAP]), chronic GVHD global severity (National Institutes of Health global score, clinician global score, and patient-reported global score), calculated and clinician-reported chronic GVHD response, and mortality (overall survival, nonrelapse mortality, and failure-free survival) in multivariable analyses adjusted for significant covariates. 2MWT was significantly associated with intuitive domains of the Lee Symptom Scale (overall, skin, lung, energy), SF-36 domain and summary scores, FACT summary and domain scores, and HAP scores (all P < .001). Fewer associations were detected with the HGS. The 2MWT and HGS both had significant association with global chronic GVHD severity. In multivariable analysis, 2MWT was significantly associated with overall survival, nonrelapse mortality, and failure-free survival, whereas no association was found for HGS. 2MWT and HGS were not sensitive to National Institutes of Health or clinician-reported response. Based on independent association with mortality, these data support the importance of the 2MWT for identification of high-risk chronic GVHD patients. However, change in 2MWT is not sensitive to chronic GVHD response, limiting its usefulness in clinical trials.
  • Takahiko Yasuda, Ritsuro Suzuki, Yuichi Ishikawa, Seitaro Terakura, Yoshihiro Inamoto, Masamitsu Yanada, Hirokazu Nagai, Yukiyasu Ozawa, Kazutaka Ozeki, Yoshiko Atsuta, Nobuhiko Emi, Tomoki Naoe
    INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES 17(6) E385-E390 2013年6月  査読有り
  • Alexey Kuznetsov, Yoshiharu Onishi, Yoshihiro Inamoto, Vladimir Gevorgyan
    Organic letters 15(10) 2498-501 2013年5月17日  
    An efficient method for the synthesis of fused heteroaromatic dihydrosiloles via Ni-catalyzed hydrosilylation/intramolecular Ir-catalyzed dehydrogenative coupling of the Si-H bond with the heteroaromatic C-H bond has been developed. The method is efficient for both electron-deficient and -rich heterocycles. It exhibits high functional group tolerance and good regioselectivity. Fused heteroaromatic dihydrosiloles can be smoothly halogenated and then oxidized or arylated. Application of these transformations allows obtaining highly functionalized heteroaromatic structures. A gram-scale synthesis of dihydropyridinosilole has also been accomplished using reduced amounts of Ni- and Ir-catalysts.
  • Joseph Pidala, Xiaoyu Chai, Brenda F Kurland, Yoshihiro Inamoto, Mary E D Flowers, Jeanne Palmer, Nandita Khera, Madan Jagasia, Corey Cutler, Mukta Arora, Georgia Vogelsang, Stephanie J Lee
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 19(5) 784-91 2013年5月  
    Although data support adverse prognosis of overlap subtype of chronic grant-versus-host disease (GVHD), the importance of site of gastrointestinal (GI) and type of hepatic involvement is not known. Using data from the Chronic GVHD Consortium observational cohort study (N = 567, total of 2115 visits), we examined whether the site of GI (esophageal, upper GI, or lower GI) and type of hepatic (bilirubin, alkaline phosphatase, alanine aminotransferase) involvement are associated with overall survival (OS) and nonrelapse mortality (NRM), symptoms, quality of life (QOL) and functional status measures. In multivariate analysis utilizing data from enrollment visits only, lower GI involvement (HR, 1.67; P = .05) and elevated bilirubin (HR, 2.46; P = .001) were associated with OS; both were also associated with NRM. In multivariable analysis using all visits (time-dependent covariates), GI score greater than zero (HR, 1.69; P = .02) and elevated bilirubin (HR, 3.73; P < .001) were associated with OS; results were similar for NRM. Any esophageal involvement and GI score greater than zero were associated with both symptoms and QOL, whereas elevated bilirubin was associated with QOL. We found no consistent evidence that upper GI involvement, alkaline phosphatase, alanine aminotransferase, or NIH liver score add prognostic value for survival, overall symptom burden, or QOL. These data support important differences in patient-reported outcomes according to GI and hepatic involvement among chronic GVHD-affected patients and identify those with elevated bilirubin or higher GI score at any time, or lower GI involvement at cohort enrollment, as patients at greater risk for mortality under current treatment approaches.
  • Yoshihiro Inamoto, Barry E Storer, Stephanie J Lee, Paul A Carpenter, Brenda M Sandmaier, Mary E D Flowers, Paul J Martin
    Blood 121(12) 2340-6 2013年3月21日  
    This study attempted to characterize causes of treatment failure, identify associated prognostic factors, and develop shorter-term end points for trials testing investigational products or regimens for second-line systemic treatment of chronic graft-versus-host disease (GVHD). The study cohort (312 patients) received second-line systemic treatment of chronic GVHD. The primary end point was failure-free survival (FFS) defined by the absence of third-line treatment, nonrelapse mortality, and recurrent malignancy during second-line treatment. Treatment change was the major cause of treatment failure. FFS was 56% at 6 months after second-line treatment. Lower steroid doses at 6 months correlated with subsequent withdrawal of immunosuppressive treatment. Multivariate analysis showed that high-risk disease at transplantation, lower gastrointestinal involvement at second-line treatment, and severe NIH global score at second-line treatment were associated with increased risks of treatment failure. These three factors were used to define risk groups, and success rates at 6 months were calculated for each risk group either without or with various steroid dose limits at 6 months as an additional criterion of success. These success rates could be used as the basis for a clinically relevant and efficient shorter-term end point in clinical studies that evaluate agents for second-line systemic treatment of chronic GVHD.
  • Tatsunori Goto, Katsuya Ikuta, Yoshihiro Inamoto, Sonoko Kamoshita, Emi Yokohata, Daisuke Koyama, Koichi Onodera, Aika Seto, Keisuke Watanabe, Nobuhiko Imahashi, Shokichi Tsukamoto, Yukiyasu Ozawa, Katsunori Sasaki, Masafumi Ito, Yutaka Kohgo, Koichi Miyamura
    International journal of hematology 97(1) 125-34 2013年1月  
    Iron overload is a common complication in allogeneic hematopoietic cell transplantation (HCT). We studied the prevalence of iron overload using serum ferritin from 122 allogeneic HCT survivors who had survived a median of 1259 (range 134-4261) days. We also quantified iron overload by determining non-transferrin-bound iron (NTBI), which reflects iron overload more directly than ferritin, and compared the results with those of the ferritin assay. Fifty-two patients (43 %) showed hyperferritinemia (HF) (serum ferritin >1000 ng/mL), and there was a moderate correlation between serum ferritin and the number of transfused red blood cell units (ρ = 0.71). In multivariate analyses, HF was a significant risk factor for liver dysfunction (P = 0.0001) and diabetes (P = 0.02), and was related to a lesser extent with performance status (P = 0.08). There was a significant correlation between serum ferritin and NTBI (ρ = 0.59); however, the association of NTBI with these outcomes was weaker than that of serum ferritin. In conclusion, serum ferritin is a good surrogate marker of iron overload after allogeneic HCT, and reflects organ damage more accurately than NTBI.
  • Jeanne M Palmer, Stephanie J Lee, Xiaoyu Chai, Barry E Storer, Mary E D Flowers, Kirk R Schultz, Yoshihiro Inamoto, Corey Cutler, Joseph Pidala, Mukta Arora, David A Jacobsohn, Paul A Carpenter, Steven Z Pavletic, Paul J Martin
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 18(11) 1649-55 2012年11月  
    In 2005, a National Institutes of Health consensus conference was held to refine methods for research in patients with chronic graft-versus-host disease, including proposed objective response measures and a provisional algorithm for calculating organ-specific and overall response. In this study, we used weighted kappa statistics to evaluate the level of agreement between clinician response ratings and calculated response categories in patients with chronic graft-versus-host disease. The study included 290 patients who had paired enrollment and follow-up visits. Based on a set of objective measures, 37% of the patients had an overall complete or partial response, whereas clinicians reported an overall complete or partial response rate of 71% (slight to fair agreement, weighted kappa 0.20). Agreement rates between calculated organ-specific responses and clinician-reported changes in skin, mouth, and eyes were fair to moderate (weighted kappa, 0.28-0.54). We conclude that for both overall and organ-specific comparisons, clinician response ratings did not agree well with calculated response categories. Possible reasons for this discrepancy include a high clinical sensitivity for detecting response, a clinical predisposition to recognize selective improvements as overall response, the large change in objective measures proposed to define response, and the high incidence of progressive disease based on new manifestations. Conclusions from prior literature reporting high overall response rates based on clinician judgment would not be supported if the provisional algorithm had been applied to calculate response. Our analysis also highlights the need to define an overall response measure that incorporates both patient-reported and objective measures and accurately reflects the outcome in patients with a mixed response in which one organ or site improves, whereas another shows new involvement.
  • Yoshihiro Inamoto, Paul J Martin, Xiaoyu Chai, Madan Jagasia, Jeanne Palmer, Joseph Pidala, Corey Cutler, Steven Z Pavletic, Mukta Arora, David Jacobsohn, Paul A Carpenter, Mary E D Flowers, Nandita Khera, Georgia B Vogelsang, Daniel Weisdorf, Barry E Storer, Stephanie J Lee
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 18(10) 1517-24 2012年10月  
    To determine whether changes in objective response measures proposed by the National Institutes of Health correlate with clinical benefit, such as symptom burden, quality of life, and survival outcomes, we analyzed data from a multicenter prospective cohort of 283 patients with chronic graft-versus-host disease requiring systemic treatment. The median follow-up time of survivors was 25.1 months (range, 5.4-47.7 months) after enrollment. Symptom measures included the Lee symptom scale and 10-point patient-reported symptoms. Quality-of-life measures included the Short Form-36, Functional Assessment of Cancer Therapy-Bone Marrow Transplantation, and Human Activities Profile. Overall and organ-specific responses were calculated by comparing manifestations at the 6-month visit and those at the enrollment visit using a provisional algorithm. Complete or partial responses were considered "response," and stable or progressive disease was considered "no response." Overall response rate at 6 months was 32%. Organ-specific response rates were 45% for skin, 23% for eyes, 32% for mouth, and 51% for gastrointestinal tract. Response at 6 months, as calculated according to the provisional response algorithm, was correlated with changes in symptom burden in patients with newly diagnosed chronic graft-versus-host disease, but not with changes in quality of life or survival outcomes. Modification of the algorithm or validation of other more meaningful clinical endpoints is warranted for future clinical trials of treatment for chronic graft-versus-host disease.
  • David A Jacobsohn, Brenda F Kurland, Joseph Pidala, Yoshihiro Inamoto, Xiaoyu Chai, Jeanne M Palmer, Sally Arai, Mukta Arora, Madan Jagasia, Corey Cutler, Daniel Weisdorf, Paul J Martin, Steven Z Pavletic, Georgia Vogelsang, Stephanie J Lee, Mary E D Flowers
    Blood 120(13) 2545-52 2012年9月27日  
    There are no validated criteria to measure skin response in chronic GVHD. In a prospectively assembled, multicenter cohort of patients with chronic GVHD (N = 458), we looked for correlation of change in several different scales recommended by the National Institutes of Health (NIH) Consensus with clinician and patient perception of change and overall survival. Of the clinician scales, the NIH composite 0-3 skin score was the only one that correlated with both clinician and patient perception of improvement or worsening. Of the patient-reported scales, the skin subscale of the Lee Symptom Scale was the only one that correlated with both clinician and patient perception of improvement or worsening. At study entry, NIH skin score 3 and Lee skin symptom score > 15 were both associated with worse overall survival. Worsening of NIH skin score at 6 months was associated with worse overall survival. Improvement in the Lee skin symptom score at 6 months was associated with improved overall survival. Our findings support the use of the NIH composite 0-3 skin score and the Lee skin symptom score as simple and sensitive measures to evaluate skin involvement in clinical trials as well as in the clinical monitoring of patients with cutaneous chronic GVHD.
  • Yachiyo Kuwatsuka, Akio Kohno, Seitaro Terakura, Shigeki Saito, Kazuyuki Shimada, Takahiko Yasuda, Yoshihiro Inamoto, Koichi Miyamura, Masashi Sawa, Makoto Murata, Takahiro Karasuno, Shuichi Taniguchi, Koji Nagafuji, Yoshiko Atsuta, Ritsuro Suzuki, Mariko Fukumoto, Tomoki Naoe, Yoshihisa Morishita
    CANCER SCIENCE 103(9) 1688-1694 2012年9月  査読有り
  • Paul J Martin, Yoshihiro Inamoto, Mary E D Flowers, Paul A Carpenter
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 18(7) 982-8 2012年7月  
    Management of steroid-resistant or steroid-refractory acute graft-versus-host disease (aGVHD) poses one of the most vexing and difficult problems faced by transplantation physicians. In the current study, we used 10 criteria to evaluate 67 reports describing secondary treatment of patients with aGVHD. The goal of this exercise was not only to provide a critical summary of the literature but also to offer suggestions that could improve future studies. Areas especially in need of improvement include the use of a consistent treatment regimen, the assessment of response at a consistent prespecified time point, consideration of concomitant treatment in assessing response, documentation that selection bias was minimized, and the use of methods that test a formal statistical hypothesis based on a contemporaneous or historical benchmark. Our results suggest that previous published reports collectively offer little guidance in discerning the most effective treatments for patients with steroid-resistant or steroid-refractory aGVHD. Adherence to the proposed criteria in future reports would enable meaningful comparisons across studies and thereby accelerate progress in evaluating new treatments for patients with aGVHD.
  • Marco Mielcarek, Barry Storer, Paul J Martin, Stephen J Forman, Robert S Negrin, Mary E Flowers, Yoshihiro Inamoto, Thomas R Chauncey, Rainer Storb, Frederick R Appelbaum, William I Bensinger
    Blood 119(11) 2675-8 2012年3月15日  
    Between 1996 and 1999, 172 patients (median age, 42 years) with hematologic malignancies were randomly assigned to receive either HLA-identical related bone marrow or G-CSF-mobilized peripheral blood mononuclear cells (G-PBMCs) after myeloablative conditioning. Early results showed that transplantation of G-PBMCs, compared with marrow, was associated with significantly superior 2-year disease-free survival (DFS) and overall survival. Ten-year follow-up showed a sustained DFS benefit associated with G-PBMCs (mortality or relapse hazard ratio, 0.64; 95% confidence interval, 0.4-1.0; P = .03), although the likelihood of overall survival was not significantly different between the 2 groups (mortality hazard ratio, 0.75; 95% confidence interval, 0.5-1.2; P = .20). The 10-year cumulative incidence of chronic GVHD and the duration of systemic immunosuppression were similar in the 2 groups. In summary, transplantation of HLA-identical related G-PBMCs, compared with marrow, was associated with superior short-term and long-term DFS, and there was no evidence that this benefit was outweighed by GVHD-related late mortality.
  • Yoshihiro Inamoto, Xiaoyu Chai, Brenda F Kurland, Corey Cutler, Mary E D Flowers, Jeanne M Palmer, Paul A Carpenter, Mary J Heffernan, David Jacobsohn, Madan H Jagasia, Joseph Pidala, Nandita Khera, Georgia B Vogelsang, Daniel Weisdorf, Paul J Martin, Steven Z Pavletic, Stephanie J Lee
    Ophthalmology 119(3) 487-93 2012年3月  
    PURPOSE: To validate measurement scales for rating ocular chronic graft-versus-host disease (GVHD) after allogeneic hematopoietic cell transplantation. Candidate scales were recommended for use in clinical trials by the National Institutes of Health (NIH) Chronic GVHD Consensus Conference or have been previously validated in dry eye syndromes. DESIGN: Prospective follow-up study. PARTICIPANTS: Between August 2007 and June 2010, the study enrolled 387 patients with chronic GVHD in a multicenter, prospective, observational cohort. METHODS: Using anchor-based methods, we compared clinician or patient-reported changes in eye symptoms (8-point scale) with calculated changes in 5 candidate scales: The NIH eye score, patient-reported global rating of eye symptoms, Lee eye subscale, Ocular Surface Disease Index, and Schirmer test. Change was examined for 333 follow-up visits where both clinician and patient reported eye involvement at the previous visit. Linear mixed models were used to account for within-patient correlation. MAIN OUTCOME MEASURES: An 8-point scale of clinician or patient-reported symptom change was used as an anchor to measure symptom changes at the follow-up visits. RESULTS: In serial evaluations, agreement regarding improvement, stability, or worsening between the clinician and patient was fair (weighted kappa = 0.34). Despite only fair agreement between evaluators, all scales except the Schirmer test correlated with both clinician-reported and patient-reported changes in ocular GVHD activity. Among all scales, changes in the NIH eye scores showed the greatest sensitivity to symptom change reported by clinicians or patients. CONCLUSIONS: Our results support the use of the NIH eye score as a sensitive measure of eye symptom changes in clinical trials assessing treatment of chronic GVHD.
  • Yoshihiro Inamoto, Yoshihiro Nishimoto, Makoto Yasuda, Akio Baba
    Organic letters 14(4) 1168-71 2012年2月17日  
    An indium triiodide catalyst promoted the direct transformation from esters to β-hydroxycarbonyl compounds using hydrosilanes and silyl enolates by a one-stage process. Various esters were applicable, and the high chemoselectivity of this system brings compatibility to many functional groups: alkenyl, alkynyl, chloro, and hydroxy.
  • Nandita Khera, Barry Storer, Mary E D Flowers, Paul A Carpenter, Yoshihiro Inamoto, Brenda M Sandmaier, Paul J Martin, Stephanie J Lee
    Journal of clinical oncology : official journal of the American Society of Clinical Oncology 30(1) 71-7 2012年1月1日  
    PURPOSE: Our objective was to describe the incidence of nonmalignant late complications and their association with health and functional status in a recent cohort of hematopoietic cell transplantation (HCT) survivors. PATIENTS AND METHODS: We determined the incidence of 14 nonmalignant late effects in adults who underwent transplantation from January 2004 through June 2009 at Fred Hutchinson Cancer Research Center who survived at least 1 year after HCT. Data were derived from review of medical records and annual self-reported questionnaires. RESULTS: The 1,087 survivors in the study had a median age at HCT of 53 years (range, 21 to 78 years) and were followed for a median of 37 months (range, 12 to 77 months) after HCT. The prevalence of pre-existing conditions ranged from 0% to 9.8%. The cumulative incidence of any nonmalignant late effect at 5 years after HCT was 44.8% among autologous and 79% among allogeneic recipients; 2.5% of autologous and 25.5% of allogeneic recipients had three or more late effects. Survivors with three or more late effects had lower physical functioning and Karnofsky score, lower likelihood of full-time work or study, and a higher likelihood of having limitations in usual activities. Predictors of at least one late effect were age ≥ 50 years, female sex, and unrelated donor, but not the intensity of the conditioning regimen. CONCLUSION: The burden of nonmalignant late effects after HCT is high, even with modern treatments and relatively short follow-up. These late effects are associated with poor health and functional status, underscoring the need for close follow-up of this group and additional research to address these complications.
  • Yoshihiro Inamoto, Mary E D Flowers
    Current opinion in hematology 18(6) 414-20 2011年11月  
    PURPOSE OF REVIEW: This article summarizes recent reports on the risks, pathogenesis and treatment of chronic graft-versus-host disease (GVHD). RECENT FINDINGS: Chronic GVHD remains an elusive disorder to characterize and to treat. Recent evidence on tolerance induction by regulatory T-cells and on B-cell involvement shed some insights into the pathogenesis of chronic GVHD. In a recent large comparative study, the overall risk profiles for acute and for chronic GVHD were similar, but risk factors were not changed after adjustment for prior acute GVHD, supporting the concept that chronic GVHD is not an end stage of acute GVHD. Glucocorticoids remain the standard initial treatment of chronic GVHD, but the outcomes are not satisfactory, particularly for patients with high-risk features. Many treatments for chronic GVHD including extracorporeal photopheresis, rituximab, sirolimus, mycofenolate mofetil, imatinib, pentostatin and infusion of mesenchymal stem cells have been reported in several retrospective and relatively small phase I/II studies with a wide range of overall responses. SUMMARY: No current therapies used for chronic GVHD have been approved by the US Food and Drug Administration. Large well designed prospective studies are warranted to establish better treatments. Targeted therapies based on the pathogenesis of chronic GVHD may lead to better outcomes.
  • Y. Inamoto, K. Miyamura, S. Okamoto, H. Akiyama, H. Iida, T. Eto, Y. Morishima, K. Kawa, A. Kikuchi, Y. Nagatoshi, J. Tanaka, T. Ashida, M. Hirokawa, M. Tsuchida, S. Mori
    BONE MARROW TRANSPLANTATION 46(9) 1192-1202 2011年9月  査読有り
  • Yoshihiro Inamoto, Alexander Fefer, Brenda M Sandmaier, Theodore A Gooley, Edus H Warren, Stephen H Petersdorf, Jean E Sanders, Rainer F Storb, Frederick R Appelbaum, Paul J Martin, Mary E D Flowers
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 17(9) 1308-15 2011年9月  
    The efficacy of donor lymphocyte infusion (DLI) for treatment of relapsed acute leukemia after allogeneic hematopoietic cell transplantation is limited. We hypothesized that interleukin-2 (IL-2) combined with DLI after chemotherapy might augment graft-versus-leukemia effects. To identify a safe and effective IL-2 regimen, a phase I/II study of DLI plus IL-2 therapy was performed for such patients. After chemotherapy, 17 patients received DLI (1 × 10(8) CD3/kg for patients with related donors, and 0.1 × 10(8) CD3/kg for those with unrelated donors) and an escalating dose of induction IL-2 (1.0, 2.0, or 3.0 × 10(6) IU/m(2)/day representing levels I [n = 7], Ia [n = 9], and II [n = 1]) for 5 days followed by maintenance (1.0 × 10(6) IU/m(2)/day) for 10 days as a continuous intravenous infusion. Unacceptable IL-2-related toxicities developed in 1 patient at level I, 2 at level Ia, and 1 at level II. Grades III-IV acute graft-versus-host disease (aGVHD) developed in 5 patients, and extensive chronic GVHD (cGVHD) developed in 8. Eight patients had a complete remission after chemotherapy prior to DLI, and 2 additional patients had a complete remission after DLI plus IL-2 therapy. In conclusion, the maximal tolerated induction dose of IL-2 combined with DLI appears to be 1.0 × 10(6) IU/m(2)/day. IL-2 administration after DLI might increase the incidence of cGVHD.
  • Paul J Martin, Yoshihiro Inamoto, Paul A Carpenter, Stephanie J Lee, Mary E D Flowers
    The Korean journal of hematology 46(3) 153-63 2011年9月  
    Chronic GVHD was recognized as a complication of allogeneic hematopoietic cell transplantation more than 30 years ago, but progress has been slowed by the limited insight into the pathogenesis of the disease and the mechanisms that lead to development of immunological tolerance. Only 6 randomized phase III treatment studies have been reported. Results of retrospective studies and prospective phase II clinical trials suggested overall benefit from treatment with mycophenolate mofetil or thalidomide, but these results were not substantiated by phase III studies of initial systemic treatment for chronic GVHD. A comprehensive review of published reports showed numerous deficiencies in studies of secondary treatment for chronic GVHD. Fewer than 10% of reports documented an effort to minimize patient selection bias, used a consistent treatment regimen, or tested a formal statistical hypothesis that was based on a contemporaneous or historical benchmark. In order to enable valid comparison of the results from different studies, eligibility criteria, definitions of individual organ and overall response, and time of assessment should be standardized. Improved treatments are more likely to emerge if reviewers and journal editors hold authors to higher standards in evaluating manuscripts for publication.
  • Yoshihiro Inamoto, Mary E D Flowers, Stephanie J Lee, Paul A Carpenter, Edus H Warren, H Joachim Deeg, Rainer F Storb, Frederick R Appelbaum, Barry E Storer, Paul J Martin
    Blood 118(2) 456-63 2011年7月14日  
    This study was conducted to elucidate the influence of immunosuppressive treatment (IST) and GVHD on risk of recurrent malignancy after allogeneic hematopoietic cell transplantation (HCT). The study cohort included 2656 patients who received allogeneic HCT after high-intensity conditioning regimens for treatment of hematologic malignancies. Rates and hazard ratios of relapse and mortality were analyzed according to GVHD and IST as time-varying covariates. Adjusted Cox analyses showed that acute and chronic GVHD were both associated with statistically similar reductions in risk of relapse beyond 18 months after HCT but not during the first 18 months. In patients with GVHD, resolution of GVHD followed by withdrawal of IST was not associated with a subsequent increase in risk of relapse. In patients without GVHD, withdrawal of IST was associated with a reduced risk of relapse during the first 18 months, but the risk of subsequent relapse remained considerably higher than in patients with GVHD. In summary, the association of GVHD with risk of relapse changes over time after HCT. In patients without GVHD, early withdrawal of IST might help to prevent relapse during the first 18 months, but other interventions would be needed to prevent relapse at later time points.
  • Yoshihiro Inamoto, Mary E D Flowers, Frederick R Appelbaum, Paul A Carpenter, H Joachim Deeg, Terry Furlong, Hans-Peter Kiem, Marco Mielcarek, Richard A Nash, Rainer F Storb, Robert P Witherspoon, Barry E Storer, Paul J Martin
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 17(7) 1088-92 2011年7月  
    This retrospective study was performed to compare results with tacrolimus versus cyclosporine in combination with methotrexate for immunosuppression after allogeneic hematopoietic cell transplantation (HCT) with granulocyte colony-stimulating factor-mobilized blood cells. The cohort included 456 consecutive patients who received first allogeneic T cell-replete HCT with mobilized blood cells from related or unrelated donors after high-intensity conditioning for treatment of hematologic malignancies. Study endpoints included grades II-IV acute graft-versus-host disease (aGVHD), grades III-IV aGVHD, chronic GVHD (cGVHD), end of treatment for cGVHD, overall mortality, disease-free survival (DFS), recurrent malignancy, and nonrelapse mortality (NRM). Adjusted multivariate Cox regression analysis showed no statistically significant differences between tacrolimus and cyclosporine for any of the endpoints tested. Although the size of the cohort is not sufficient to exclude clinically meaningful differences in outcomes, these results support the continued use of cyclosporine at centers that have not adopted tacrolimus as the standard of care after HCT with mobilized blood cells after high-intensity conditioning regimens. A larger registry study should be performed to provide more definitive information comparing outcomes with the 2 calcineurin inhibitors.
  • Mary E D Flowers, Yoshihiro Inamoto, Paul A Carpenter, Stephanie J Lee, Hans-Peter Kiem, Effie W Petersdorf, Shalini E Pereira, Richard A Nash, Marco Mielcarek, Matthew L Fero, Edus H Warren, Jean E Sanders, Rainer F Storb, Frederick R Appelbaum, Barry E Storer, Paul J Martin
    Blood 117(11) 3214-9 2011年3月17日  
    Risk factors for grades 2-4 acute graft-versus-host disease (GVHD) and for chronic GVHD as defined by National Institutes of Health consensus criteria were evaluated and compared in 2941 recipients of first allogeneic hematopoietic cell transplantation at our center. In multivariate analyses, the profiles of risk factors for acute and chronic GVHD were similar, with some notable differences. Recipient human leukocyte antigen (HLA) mismatching and the use of unrelated donors had a greater effect on the risk of acute GVHD than on chronic GVHD, whereas the use of female donors for male recipients had a greater effect on the risk of chronic GVHD than on acute GVHD. Total body irradiation was strongly associated with acute GVHD, but had no statistically significant association with chronic GVHD, whereas grafting with mobilized blood cells was strongly associated with chronic GVHD but not with acute GVHD. Older patient age was associated with chronic GVHD, but had no effect on acute GVHD. For all risk factors associated with chronic GVHD, point estimates and confidence intervals were not significantly changed after adjustment for prior acute GVHD. These results suggest that the mechanisms involved in acute and chronic GVHD are not entirely congruent and that chronic GVHD is not simply the end stage of acute GVHD.
  • Satoshi Nishiwaki, Yoshihiro Inamoto, Masahiro Imamura, Hisashi Tsurumi, Kazuo Hatanaka, Keisei Kawa, Ritsuro Suzuki, Koichi Miyamura
    BLOOD 117(13) 3698-3699 2011年3月  査読有り
  • Nobuhiko Imahashi, Yoshihiro Inamoto, Aika Seto, Keisuke Watanabe, Satoshi Nishiwaki, Mayumi Yanagisawa, Makoto Shinba, Takahiko Yasuda, Yachiyo Kuwatsuka, Yoshiko Atsuta, Yoshihisa Kodera, Koichi Miyamura
    CLINICAL TRANSPLANTATION 24(6) 772-777 2010年11月  査読有り
  • Satoshi Nishiwaki, Yoshihiro Inamoto, Hisashi Sakamaki, Mineo Kurokawa, Hiroatsu Iida, Hiroyasu Ogawa, Takahiro Fukuda, Yukiyasu Ozawa, Naoki Kobayashi, Masanobu Kasai, Takehiko Mori, Koji Iwato, Takashi Yoshida, Makoto Onizuka, Keisei Kawa, Yasuo Morishima, Ritsuro Suzuki, Yoshiko Atsuta, Koichi Miyamura
    BLOOD 116(20) 4368-4375 2010年11月  査読有り
  • Yoshihiro Nishimoto, Hiroki Ueda, Yoshihiro Inamoto, Makoto Yasuda, Akio Baba
    Organic letters 12(15) 3390-3 2010年8月6日  
    The regioselective carboindation of simple alkenes with indium tribromide and ketene silyl acetals was accomplished. Various alkenes such as ethylene, 1-alkenes, and cyclic alkenes were applicable for this reaction system. The alkylindium product from the carboindation of cyclohexene revealed an anti addition mechanism.
  • Yoshihiro Inamoto, Shingo Kurahashi, Nobuhiko Imahashi, Nobuaki Fukushima, Tatsuya Adachi, Tomohiro Kinoshita, Keitaro Tsushita, Koichi Miyamura, Tomoki Naoe, Isamu Sugiura
    American journal of hematology 84(5) 283-6 2009年5月  
    High-dose chemotherapy followed by autologous stem cell transplantation (ASCT) is a standard therapy for newly diagnosed multiple myeloma. Combinations of recently proposed prognostic factors such as cytogenetics and international scoring system (ISS) may be useful to predict prognosis after ASCT. This study evaluated 60 consecutive patients who underwent ASCT in four institutes. The median age of patients was 57 years old. Cytogenetic analyses of bone marrow at diagnosis detected metaphase abnormalities in 9 of 51 patients and interphase abnormalities in six of 35 patients (17p13 deletion, t(4;14) and t(14;16)). Seventeen patients had ISS stage 3 at diagnosis. Twenty-five patients who had any of these risk factors were defined as high risk. All patients were conditioned with high-dose melphalan. With a median follow-up of 3.4 years, overall survival and event-free survival at 3 years were significantly worse in high-risk patients (48% vs. 97%; P = 0.0005 and 16% vs. 37%; P = 0.038, respectively) despite the higher CR plus VGPR rate among high-risk patients. In addition, survival at 1 year after progression was significantly worse in high-risk patients despite salvage chemotherapy containing thalidomide (32% vs. 100%, P = 0.0001). Combinations of cytogenetics and ISS could readily predict prognosis. Quality of response is a poor surrogate marker for ultimate outcome. High-risk patients may need more effective treatment.
  • Michi Kamei, Yasuhito Nannya, Hiroki Torikai, Takakazu Kawase, Kenjiro Taura, Yoshihiro Inamoto, Taro Takahashi, Makoto Yazaki, Satoko Morishima, Kunio Tsujimura, Koichi Miyamura, Tetsuya Ito, Hajime Togari, Stanley R. Riddell, Yoshihisa Kodera, Yasuo Morishima, Toshitada Takahashi, Kiyotaka Kuzushima, Seishi Ogawa, Yoshiki Akatsuka
    BLOOD 113(21) 5041-5048 2009年5月  査読有り
  • Kyoko Sugimoto, Makoto Murata, Makoto Onizuka, Yoshihiro Inamoto, Seitaro Terakura, Yachiyo Kuwatsuka, Taku Oba, Koichi Miyamura, Yoshihisa Kodera, Tomoki Naoe
    International journal of hematology 87(5) 451-458 2008年6月  
    Polymorphism in 5,10-methylenetetrahydrofolate reductase (MTHFR), a central enzyme in folate metabolism, has been shown to affect the sensitivity of patients to folate-based drugs such as methotrexate. In this study, we investigated whether a common single nucleotide polymorphism at position 677 in the donor or recipient's MTHFR gene affects the risk for acute graft-versus-host disease (GVHD) following allogeneic hematopoietic stem cell transplantation (HSCT) from HLA-identical sibling donors when the recipient receives prophylactic treatment with methotrexate for GVHD. MTHFR genotypes were determined in 159 recipients with a hematological disease and their donors using polymerase chain reaction-restriction fragment length polymorphism analysis of genomic DNA. The 677TT genotype, which encodes an enzyme with approximately 30% of the activity of the wild-type (677CC), was observed in 13% of patients and in 8% of normal donors. Multivariate analyses demonstrated a significant association between 677TT genotype in patients and a lower incidence of grade I-IV acute GVHD (relative risk, 0.35; 95% confidence interval, 0.13-0.95; P = 0.040). There was no association between the incidence of acute GVHD and the donor MTHFR genotypes. These results suggest that greater immunosuppression by methotrexate due to low MTHFR enzyme activity decreases the risk of acute GVHD in recipients of allogeneic HSCT.
  • Yoshihiro Inamoto, Ritsuro Suzuki, Yachiyo Kuwatsuka, Takahiko Yasuda, Taro Takahashi, Akane Tsujimura, Kyoko Sugimoto, Taku Oba, Seitaro Terakura, Yoshiko Atsuta, Makoto Murata, Masafumi Ito, Yoshihisa Kodera, Koichi Miyamura
    Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 14(1) 43-9 2008年1月  査読有り
    We retrospectively studied 49 patients in a single institute to evaluate the long-term outcome of total lymphoid irradiation (TLI) conditioning for allogeneic stem cell transplantation (allo-SCT) to treat aplastic anemia (AA). Most of the patients had received transfusions and had undergone previous treatment, with 33 receiving related transplants and 16 receiving unrelated transplants. Conditioning consisted of cyclophosphamide (Cy; 200 mg/kg) plus TLI (750 cGy) for related transplantation and Cy plus total body irradiation (TBI; 500 cGy) and TLI (500 cGy) for unrelated transplantation. Antithymocyte globulin (ATG) was added for 6 of the unrelated transplantations. Graft-versus-host-disease (GVHD) prophylaxis consisted mainly of cyclosporine (CSA) and methotrexate (MTX). Graft failure developed in 2 patients (4.1%). With a median follow-up of 7 years, overall survival (OS) was 81% and was not statistically significantly different between the patients receiving related transplants and those receiving unrelated transplants. In multivariate analyses, a history of previous treatment with ATG was the sole factor associated with a worse survival rate, and the interval from diagnosis to treatment was not prognostic. The incidence of acute (grade II to IV) GVHD (aGVHD) was 23%, and that of chronic GVHD (cGVHD) was 29%. Female-to-male transplantation was the sole factor associated with chronic GVHD. B cell lymphoproliferative disorder developed only after the ATG-containing conditioning. No other secondary malignancies developed after long-term follow-up. Our findings suggest that TLI conditioning is feasible and effective for patients with AA.
  • Yoshihiro Inamoto, Yachiyo Kuwatsuka, Taku Oba, Seitaro Terakura, Kyoko Sugimoto, Akane Tsujimura, Taro Takahashi, Takahiko Yasuda, Koichi Miyamura, Yoshihisa Kodera
    International journal of hematology 85(2) 163-9 2007年2月  
    To clarify the clinical significance of a serologic HLA-DR mismatch after unrelated-donor transplantation, we evaluated for hematologic malignancies 123 cases of unrelated bone marrow transplantation carried out in a single institution between 1995 and 2004. Of the patients in these cases, 12 were serologically mismatched at the single HLA-DR locus. Eighty-two patients who received HLA-matched transplantations were used as controls. Conditioning consisted of a conventional total body irradiation-based regimen or a fludarabine-based reduced-intensity regimen. Prophylaxis for graft-versus-host disease (GVHD) consisted of tacrolimus plus short-term methotrexate. Graft failure did not develop. With a median follow-up of 42 months (range, 11-99 months), rates of overall survival, nonrelapse mortality, and relapse at 4 years were 63%, 38%, and 0%, respectively, all of which were comparable with those after HLA-matched transplantation. The frequency of acute GVHD of grades II to IV was 75%, significantly higher than after HLA-matched transplantation (42%, P = .046), and there was a trend toward an increased incidence of acute GVHD of grades III to IV after serologically HLA-DR-mismatched unrelated transplantation (27% versus 10%, P = .093). Chronic GVHD developed in 4 of 11 evaluable patients, an incidence comparable with that after HLA-matched transplantation. In summary, serologically HLA-DR-mismatched unrelated transplantation is feasible and might be an acceptable alternative for the Japanese population, although the higher incidence of acute GVHD is notable.
  • Yoshihiro Inamoto, Koichi Miyamura
    Nihon rinsho. Japanese journal of clinical medicine 65 Suppl 1 658-61 2007年1月28日  
  • Yoshiki Akatsuka, Hiroki Torikai, Yoshihiro Inamoto, Kunio Tsujimura, Yasuo Morishima, Yoshihisa Kodera, Kiyotaka Kuzushima, Toshitada Takahashi
    British journal of haematology 135(3) 413-4 2006年11月  
  • Akane Tsujimura, Koichi Miyamura, Yachiyo Kuwatsuka, Yoshihiro Inamoto, Masahiro Tokunaga, Taku Oba, Seitaro Terakura, Ritsuro Suzuki, Masafumi Ito, Takuhei Murase, Yoshihisa Kodera
    [Rinsho ketsueki] The Japanese journal of clinical hematology 47(10) 1387-92 2006年10月  
    The Asian variant of intravascular large B-cell lymphoma (AIVL) is a rare aggressive lymphoma characterized by various clinical symptoms, hemophagocytic syndrome and predominant growth within vessels. We present a 73-year-old man with relapsed AIVL who had been treated with six courses of CHOP regimen. A half year later, he presented with high fever, sweat, dementia and hepatosplenomegaly without lymphadenopathy. A bone marrow biopsy showed prominent hemophagocytosis and immunological staining disclosed an augmented intrasinusal pattern of atypical large lymphocytes characteristic of the CD20+ and CD5+ phenotypes. As salvage therapy, CND-R (rituximab, cladribine, mitoxantrone, dexamethasone) was performed, and the clinical symptoms immediately and dramatically improved. Subsequently, CND-R therapy was repeated every 4 weeks. No serious adverse events were observed with the exception of grade 4 neutropenia and grade 3 thrombocytopenia. After completion of the fifth course, a bone marrow biopsy pathologically confirmed complete remission, leading to termination of this therapy. The patient has remained in remission for more than 15 months. CND-R therapy, which is effective for indolent lymphoma, may be one of the candidates in salvage therapy for relapsed AIVL.
  • Yoshihiro Inamoto, Taku Oba, Koichi Miyamura, Seitaro Terakura, Akane Tsujimura, Yachiyo Kuwatsuka, Masahiro Tokunaga, Masanobu Kasai, Makoto Murata, Tomoki Naoe, Yoshihisa Kodera
    International journal of hematology 83(4) 356-62 2006年5月  査読有り
    Graft failure and nonrelapse mortality (NRM) are major obstacles after the first unrelated-donor bone marrow transplantation (UD-BMT) with reduced-intensity conditioning. We evaluated UD-BMT with fludarabine (5 x 25 mg/m2) and melphalan (2 x 90 mg/m2) treatment combined with short-term methotrexate and tacrolimus (n = 20) or cyclosporine (n = 2) therapy for 22 patients with hematologic malignancies who were ineligible for conventional conditioning. Only 9 patients were in remission at transplantation. Seventeen patients underwent HLA-matched or DRB1 allele-mismatched transplantation, and 5 patients underwent HLA-A allele-mismatched or serologically HLA-DR-mismatched transplantation. Regimen-related toxicities were tolerable, although transient oral mucositis, hepatobiliary enzyme elevation, and diarrhea were observed frequently. All evaluable patients achieved sustained neutrophil engraftment, and all patients tested showed complete donor chimerism on day 28. With a median follow-up of 16 months, NRM and overall survival rates at 1 year were 19% and 81%, respectively, among the patients who underwent HLA-matched or DRB1 allele-mismatched transplantation. Acute graft-versus-host disease (GVHD) of grades II to IV occurred in 26% of the patients. The cumulative incidence of chronic GVHD was 44%. Despite the small number of patients and the short follow-up period, this reduced-intensity regimen enabled satisfactory engraftment and achievement of rapid complete donor chimerism with tolerable toxicities in the patients, including those who underwent HLA-mismatched UD-BMT.
  • Yoshihiro Inamoto, Yachiyo Kuwatsuka, Akane Tsujimura, Masahiro Tokunaga, Taku Oba, Koichi Miyamura, Yoshihisa Kodera
    [Rinsho ketsueki] The Japanese journal of clinical hematology 47(1) 9-15 2006年1月  
    Since 1999, we started to modify the conditioning regimen in allogeneic stem cell transplantation for middle-aged to elderly patients (> = 50), and experimented with 3 conditioning regimens. The clinical outcome was compared between fludarabine/melphalan (FLU/MEL) conditioning and two other conditioning regimens (reduced TBI (7.5 Gy) and BU/CY). From 1999 through 2005, a total of 33 patients aged 50 or more with a hematological malignancy received allogeneic transplantation in our institute. Seventeen received FLU/MEL conditioning and 16 received the other conditioning regimens. The FLU/MEL group included more patients receiving unrelated bone marrow transplantation. There were no differences in primary disease, risk, HLA disparity, GVHD prophylaxis and stem cell source. Sustained engraftment was achieved in all evaluable patients in both groups. Regimen-related toxicities were the same in both groups. Transplant-related-mortality (TRM), relapse rate and disease-free survival were 22% and 25%, 25% and 47%, 59% and 37% in the FLU/MEL group and in the other group, respectively. The incidence of grade II-IV acute GVHD was 25% and 13%, respectively, and that of chronic GVHD was 38% and 56%, respectively. FLU/MEL conditioning achieved satisfactory engraftment. Although the relapse rate showed a lower tendency with FLU/MEL conditioning, there were no differences as far as TRM was concerned. FLU/MEL conditioning could be a novel conditioning regimen for middle-aged to elderly patients.
  • Yoshihiro Inamoto, Tamio Teramoto, Koji Shirai, Hideko Tsukamoto, Takaomi Sanda, Koichi Miyamura, Ikuo Yamamori, Noriyuki Hirabayashi, Yoshihisa Kodera
    International journal of hematology 82(4) 362-6 2005年11月  
    A 55-year-old woman with Ph-negative acute lymphoblastic leukemia in primary induction failure received allogeneic peripheral blood stem cell transplantation from her HLA-compatible sister. Pseudohyponatremia developed due to extreme hypercholesterolemia of 4091 mg/dL accompanied by lipoprotein X and lipoprotein Y. The hypercholesterolemia was caused by cholestasis due to chronic GVHD and ischemic cholangiopathy. In addition, we found that hepatic triglyceride lipase (HTGL) activity was severely decreased, which could be another novel factor causing extreme hypercholesterolemia after allogeneic transplantation. The total cholesterol has been gradually decreasing followed by the improvement of cholestasis with bezafibrate, ursodeoxycholic acid and prednisone treatments, and by a slight increase in HTGL-protein. To our knowledge, this is the first report to describe the association of decreased HTGL with extreme hypercholesterolemia after allogeneic transplantation.

MISC

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共同研究・競争的資金等の研究課題

 6