{"title":"[Comparison of IPSS-R and IPSS-M in newly diagnosed myelodysplastic neoplasms: a single-center study].","authors":"Shunsuke Otsuki, Seiichiro Katagiri, Yuya Arai, Shohei Wakamatsu, Mituru Moriyama, Akiko Yamada, Tamiko Suguro, Michiyo Asano, Seiichiro Yoshizawa, Daigo Akahane, Yuko Tanaka, Nahoko Furuya, Hiroaki Fujimoto, Seiichi Okabe, Moritaka Gotoh, Yoshikazu Ito, Hironori Harada, Yuka Harada, Akihiko Gotoh","doi":"10.11406/rinketsu.66.7","DOIUrl":"https://doi.org/10.11406/rinketsu.66.7","url":null,"abstract":"<p><p>We compared the International Prognostic Scoring System-Revised (IPSS-R) to the International Prognostic Scoring System-Molecular (IPSS-M) in 30 patients with myelodysplastic neoplasms (MDS) newly diagnosed at our institution from January 2021 to February 2023. Molecular analysis was performed by myeloid panel. The median age was 66 years (range: 35-80), and classifications were MDS-LB (n=18), MDS IB-1 (n=1), MDS IB-2 (n=2), MDS-SF3B1 (n=2), MDS-biTP53 (n=1), and MN-pCT (n=6). Each patient had 0 to 8 (median 1) mutations. The most frequently detected mutation was the TET2 mutation, and others detected in>5 patients were U2AF1, TP53, and RUNX1 mutations. IPSS-R classification indicated that 2, 14, 5, 3, and 6 patients were very low, low, intermediate (Int), high, and very high risk, respectively, whereas the IPSS-M classification indicated that 3, 9, 7, 2, 4, and 5 cases were very low, low, moderate-low (ML), moderate-high (MH), high, and very high risk, respectively. Considering IPSS-M ML and MH as the equivalent to IPSS-R Int, 13 (43%) patients had a different risk level in the IPSS-M compared to the IPSS-R. One patient was rated low-risk by IPSS-R, but reclassified as high risk by IPSS-M. It is important to be mindful of this potential for significant discrepancies between risk assessments using IPSS-R and IPSS-M in some cases when making treatment decisions.</p>","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":"66 1","pages":"7-11"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Efficacy and safety of romiplostim in aplastic anemia refractory or intolerant to immunosuppressive therapy with eltrombopag].","authors":"Shuku Sato, Shun Tsunoda, Wataru Kamata, Tomiteru Togano, Yotaro Tamai","doi":"10.11406/rinketsu.66.92","DOIUrl":"https://doi.org/10.11406/rinketsu.66.92","url":null,"abstract":"<p><p>Combination of immunosuppressive therapy (IST) and thrombopoietin receptor agonists has revolutionized the treatment of aplastic anemia. In this study, 18 patients with eltrombopag (EPAG)-refractory and intolerant AA, including 16 with severe AA, were switched from EPAG to romiplostim and continued with romiplostim for at least three months. Of the 18 patients (7 refractory and 11 intolerant to EPAG), 13 (72%) achieved a response, with a therapeutic response in at least one lineage within three months, and nine patients (50%) showed a trilineage response. All three patients who started romiplostim over three years after diagnosis failed to respond to romiplostim. In three of the four patients with adequate response to romiplostim, interruption of romiplostim resulted in relapsed thrombocytopenia, and early resumption of romiplostim resulted in recovered blood counts. These results suggest that romiplostim may achieve a response in IST+EPAG refractory/intolerant SAA.</p>","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":"66 2","pages":"92-99"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143569206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Identification of genes regulating human CAR-T cell proliferation by genome-wide CRISPR screening].","authors":"Yoshitaka Adachi","doi":"10.11406/rinketsu.66.145","DOIUrl":"10.11406/rinketsu.66.145","url":null,"abstract":"<p><p>In vivo expansion and long-term maintenance of CAR-T cells are considered to be the hallmark of treatment success after CD19 CAR-T cell therapy. Genome-wide CRISPR screening has emerged as a powerful tool for large-scale gene screens. Genome-wide CRISPR screening revealed that CUL5 gene knockout (KO) improved the proliferation of CD19 CAR-T cells. CUL5KO improved not only the proliferation but also the effector function of CAR-T cells. The JAK-STAT pathway was upregulated in CUL5KO CAR-T cells, and CUL5 was associated with the degradation of JAK3 upon activation through IL-2 signaling. CUL5KO CD19 CAR-T cells efficiently suppressed in vivo tumor progression as compared to control CD19 CAR-T cells.</p>","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":"66 3","pages":"145-152"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Unrelated bone marrow transplantation for acute myeloid leukemia evolved from paroxysmal nocturnal hemoglobinuria].","authors":"Wakana Takahashi, Nobuaki Fukushima, Tomoya Arakawa, Rintaro Minami, Masaya Numata, Akio Kohno, Kazutaka Ozeki","doi":"10.11406/rinketsu.66.177","DOIUrl":"10.11406/rinketsu.66.177","url":null,"abstract":"<p><p>Paroxysmal nocturnal hemoglobinuria (PNH) is a hematopoietic stem cell disease that results from clonal expansion of hematopoietic stem cells with gene mutations. Patients with PNH are known to have an increased risk of developing myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML). We report a case of a 42-year-old woman diagnosed with AML 13 years after a diagnosis of PNH. Gene mutations associated with MDS were detected. She did not achieve complete remission (CR) after induction therapy with idarubicin and cytarabine. Unrelated bone marrow transplantation was performed with a myeloablative conditioning regimen with cyclophosphamide (120 mg/kg) and total body irradiation (12 Gy). Ravulizumab was administered until 47 days after transplantation. She achieved CR after transplantation with complete donor engraftment. The transplantation was successful without severe complications such as graft-versus-host disease or sinusoidal obstruction syndrome. Further accumulation of cases is necessary to determine the efficacy and safety of anti-complement inhibitors in allogeneic hematopoietic stem cell transplantation.</p>","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":"66 3","pages":"177-183"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Clinical features of three cases with primary bone marrow lymphoma].","authors":"Hidetaka Nakagaki, Takahiro Shima, Reiko Yoneda, Masayasu Hayashi, Sae Utsumi, Seiya Hirakawa, Chiaki Kubara, Ken Takigawa, Akihisa Yoshino, Mariko Minami, Yayoi Matsuo, Takuro Kuriyama, Shuichi Taniguchi, Tetsuya Eto","doi":"10.11406/rinketsu.66.42","DOIUrl":"https://doi.org/10.11406/rinketsu.66.42","url":null,"abstract":"<p><p>Primary bone marrow lymphoma (PBML) is a malignant lymphoma characterized by proliferation of lymphoma cells exclusively in the bone marrow without lymphadenopathy. Despite the dismal prognosis of PBML, it is a very rare lymphoma with limited evidence concerning its pathophysiology, making accumulation of cases important. We herein report three cases of PBML at our institution. The first patient was an 80-year-old man who presented with hemophagocytic syndrome and pancytopenia at admission, and died of septic shock during initial chemotherapy. The second patient was a 64-year-old man who achieved complete remission with intensive chemotherapies, but relapsed shortly after completing the final chemotherapy course. The third patient was a 66-year-old woman who underwent chemotherapies and allogeneic hematopoietic stem cell transplantation, only to relapse shortly after transplantation. Although early intervention with chemotherapy is essential for PBML treatment, diagnosis of PBML is very challenging due to the absence of lymph node involvement. Moreover, treatment outcomes of existing chemotherapy and transplantation therapies for PBML are still poor. Further accumulation of cases and development of new treatment strategies are desirable.</p>","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":"66 1","pages":"42-48"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143384276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Successful treatment with venetoclax and azacitidine in a patient with acute myeloid leukemia with BCR::ABL1 fusion].","authors":"Kenta Motegi, Akira Katsumi","doi":"10.11406/rinketsu.66.184","DOIUrl":"10.11406/rinketsu.66.184","url":null,"abstract":"<p><p>An 80-year-old woman presented with fatigue. Routine blood tests at her previous medical institution revealed a decreased white blood cell count, leading to a diagnosis of low-risk myelodysplastic syndrome. During observation, the disease progressed to acute myeloid leukemia (AML), and she was subsequently referred to our hospital. At the time of AML diagnosis, bone marrow examination detected minor BCR-ABL mRNA. Fluorescence in situ hybridization showed a positive BCR-ABL fusion signal in 7.5% of bone marrow cells. Treatment with venetoclax and azacitidine was initiated, and led to hematological remission after one cycle. A bone marrow examination after two cycles confirmed the maintenance of hematological remission, and RT-PCR showed reduced minor BCR-ABL mRNA levels. AML with BCR-ABL1 fusion generally has a poor prognosis and has no established treatment, but in this case, treatment with venetoclax and azacitidine successfully induced remission and demonstrated potential efficacy against BCR-ABL fusion-positive clones.</p>","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":"66 3","pages":"184-188"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Extramedullary relapse of acute myeloid leukemia with pericardial effusion after allogeneic hematopoietic stem cell transplantation].","authors":"Yurie Saitou, Hayato Matsumoto, Takuro Shimbo, Shin Matsuda","doi":"10.11406/rinketsu.66.170","DOIUrl":"10.11406/rinketsu.66.170","url":null,"abstract":"<p><p>A 62-year-old man presented with anemia and neutropenia, and was diagnosed with acute myeloid leukemia with myelodysplasia-related changes (AML-MRC). His disease was refractory to treatment, but went into remission after a third regimen, venetoclax plus azacitidine (Ven+Aza). However, the disease relapsed during treatment for an infection, and he underwent allogeneic peripheral blood stem cell transplant while not in remission. He did not achieve remission after transplantation, but treatment with azacitidine and early discontinuation of immunosuppressants led to remission. However, relapse occurred on day250 in the form of pericardial effusion. After drainage, Ven+Aza therapy was started again, and the pericardial effusion disappeared rapidly. The patient has been continuing the same treatment, and has remained in remission for more than 15 months. Isolated extramedullary relapse caused by pericardial effusion is rare, and this case illustrates that Ven+Aza therapy may be effective.</p>","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":"66 3","pages":"170-176"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"","authors":"","doi":"10.11406/rinketsu.66.71","DOIUrl":"https://doi.org/10.11406/rinketsu.66.71","url":null,"abstract":"","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":"66 1","pages":"71-72"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143384261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Prophylactic efficacy of tixagevimab/cilgavimab in patients with hematological neoplasms: a single-center study].","authors":"Hirofumi Nakano, Shiori Nakashima, Yui Imai, Tomoyuki Uchida, Morihiro Inoue, Masao Hagihara","doi":"10.11406/rinketsu.66.3","DOIUrl":"https://doi.org/10.11406/rinketsu.66.3","url":null,"abstract":"<p><p>We retrospectively analyzed the efficacy of tixagevimab/cilgavimab (Tix/Cil) in 142 patients (total of 157 injections) with hematological disorders. Fifteen patients (9.5%) were infected with coronavirus disease (COVID-19), and 3 of these remained infected even after repeated administration of Tix/Cil. Malignant lymphoma and multiple myeloma were the most frequent underlying disorders (frequencies of 18.9% and 17.5%, respectively). Whole genome sequencing of the Omicron variant was performed in 11 patients, and revealed sensitivity to Tix/Cil in only 2. In both cases, the severity of COVID-19 was moderate I or II. Since April 2023, when a Tix/Cil-resistant variant became dominant (frequency >70%), the incidence of breakthrough infections increased from 4% to 35%, and none responded to Tix/Cil. Vaccination, together with daily precautions against infection, is the current approach used to prevent COVID-19, particularly in patients with lymphoid malignancies, because Tix/Cil is no longer effective as prophylaxis.</p>","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":"66 1","pages":"3-6"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"","authors":"","doi":"10.11406/rinketsu.66.134","DOIUrl":"https://doi.org/10.11406/rinketsu.66.134","url":null,"abstract":"","PeriodicalId":93844,"journal":{"name":"[Rinsho ketsueki] The Japanese journal of clinical hematology","volume":"66 2","pages":"134-135"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143569183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}