117 results match your criteria: "Kyushu University Graduate School of Medical Science[Affiliation]"

Deep molecular response (DMR) is a prerequite for treatment-free remission (TFR) in chronic myeloid leukemia in chronic phase (CML-CP). The JALSG (Japan Adult Leukemia Study Group) conducted a prospective randomized phase 3 CML212 study for de novo CML-CP to compare the cumulative achievement of molecular response 4.5 (MR4.

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Article Synopsis
  • Secondary central nervous system (CNS) lymphomas often require specialized drugs, but current options have limited effectiveness; this case discusses CAR-T cell therapy as a potential solution.
  • A 66-year-old male with diffuse large B-cell lymphoma initially achieved remission but later showed signs of isolated CNS relapse, leading to treatment with high-dose methotrexate and ultimately CAR-T cell therapy.
  • The CAR-T therapy resulted in a second complete remission and demonstrated tolerable side effects, suggesting its potential as a safe and effective treatment for isolated secondary CNS lymphomas, highlighting the need for more research in this area.
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Characteristics and prognosis of patients with COVID-19 and hematological diseases in Japan: a cross-sectional study.

Int J Hematol

February 2024

Department of Hematology and Oncology, Dokkyo Medical University, 880, Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi, 321-0293, Japan.

The Japanese Society of Hematology performed an observational cross-sectional study to clarify the morbidity, prognosis, and prognostic factors in patients with COVID-19 with hematological diseases (HDs) in Japan. The study included patients with HDs who enrolled in our epidemiological survey and had a COVID-19 diagnosis and a verified outcome of up to 2 months. The primary endpoints were characteristics and short-term prognosis of COVID-19 in patients with HDs.

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Article Synopsis
  • T follicular helper cell lymphomas (TFHLs) show T-like properties and significant immune cell infiltration, but understanding of their tumor-cell diversity and immune profiles is limited.
  • A single-cell transcriptomic analysis revealed five distinct subclusters of tumor cells with varying T marker expressions, indicating clonal evolution driven by genetic changes.
  • Increased exhausted CD8 T cells and unique immune evasion tactics from various immune cell types contribute to a complex immunosuppressive environment, suggesting that this heterogeneity may be linked to treatment resistance in TFHL.
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Real-world clinical characteristics of post-essential thrombocythemia and post-polycythemia vera myelofibrosis.

Ann Hematol

January 2024

Division of Hematology, Diabetes, and Endocrinology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, 5200 Kihara Kiyotake, Miyazaki, 889-1692, Japan.

Article Synopsis
  • A nationwide study analyzed clinical characteristics of post-essential thrombocythemia myelofibrosis (PET-MF) and post-polycythemia vera myelofibrosis (PPV-MF) in 314 patients diagnosed from 2012 to 2021.
  • Both conditions had a median diagnosis age of 70 years, with similar timeframes from earlier conditions; however, PPV-MF patients presented higher hemoglobin and white blood cell counts while PET-MF patients had elevated platelet counts.
  • Ruxolitinib was the primary treatment for both groups, and their overall survival rates were comparable, with leukemic transformation identified as the leading cause of death.
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This prospective observational study aimed to assess the serological response and safety after the third booster shot of SARS-CoV-2 mRNA vaccines in 292 hematopoietic cell transplant (HCT) recipients. In our patients, mild systemic reactions were present in 10-40% and GVHD aggravation in 1.1%.

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Stem cell gene therapy using the MFGS-gp91 retroviral vector was performed on a 27-year-old patient with X-linked chronic granulomatous disease (X-CGD) in 2014. The patient's refractory infections were resolved, whereas the oxidase-positive neutrophils disappeared within 6 months. Thirty-two months after gene therapy, the patient developed myelodysplastic syndrome (MDS), and vector integration into the MECOM locus was identified in blast cells.

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Article Synopsis
  • The study investigates how coagulation biomarkers relate to clinical outcomes in elderly Japanese patients with atrial fibrillation (AF) treated with either direct oral anticoagulants (DOACs) or warfarin.
  • It included patients aged 75 and older, assessing levels of biomarkers like D-dimer and thrombin-antithrombin complex (TAT) alongside their anticoagulant usage.
  • The findings indicate that higher biomarker levels correlate with increased risks of cardiovascular events and mortality, with different associations observed between DOAC and warfarin users.
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Nationwide prospective survey of secondary myelofibrosis in Japan: superiority of DIPSS-plus to MYSEC-PM as a survival risk model.

Blood Cancer J

July 2023

Division of Hematology, Diabetes, and Endocrinology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, 5200 Kihara Kiyotake, Miyazaki, 889-1692, Japan.

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[Posttransplant complications: GVHD and SOS/VOD].

Rinsho Ketsueki

July 2023

Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medical Science.

Several novel agents (e.g., molecularly targeted drug, bispecific antibody, antibody-drug conjugate, chimeric antigen receptor T-cell therapy) have successively emerged in clinical practice and are occasionally used in allogeneic hematopoietic cell transplantation (allo-HCT) settings.

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Breakthrough candidemia (BrC) is a significant problem in immunocompromised patients, particularly those with hematological disorders. To assess the characteristics of BrC in patients with hematologic disease treated with novel antifungal agents, we collected clinical and microbiological information on said patients from 2009 to 2020 in our institution. Forty cases were identified, of which 29 (72.

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Human cytomegalovirus (HCMV) infections develop into CMV diseases that result in various forms of manifestations in local organs. CMV-retinitis is a form of CMV disease that develops in immunocompromised hosts with CMV-viremia after viruses in the peripheral circulation have entered the eye. In the HCMV genome, extensive diversification of the UL40 gene has produced peptide sequences that modulate NK cell effector functions when loaded onto HLA-E and are subsequently recognized by the NKG2A and NKG2C receptors.

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HCT recipients reportedly have a high mortality rate after developing COVID-19. SARS-CoV-2 vaccination is generally useful to prevent COVID-19. However, its safety and efficacy among HCT recipients remain elusive.

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Donor-derived hematological malignancies have been recognized as rare but serious late complications in allogeneic hematopoietic stem cell transplantation (allo-HSCT) recipients. Most cases in the literature were diagnosed as myelodysplastic syndrome or acute leukemia, with very few malignant lymphoma reported. We herein present another case of donor-derived Burkitt lymphoma that occurred 9 years after allo-HSCT under continued administration of immunosuppressants for chronic graft-versus-host disease (GVHD).

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ASXL1 mutations with serum EPO levels predict poor response to darbepoetin alfa in lower-risk MDS: W-JHS MDS01 trial.

Int J Hematol

November 2022

Department of Hematology and Oncology, Dokkyo Medical University, 880, Kitakobayashi, Mibu-machi, Shimotsuga-gun, Tochigi, 321-0293, Japan.

Darbepoetin alfa (DA) is used to treat anemia in lower-risk (IPSS low or int-1) myelodysplastic syndromes (MDS). However, whether mutations can predict the effectiveness of DA has not been examined. The present study aimed to determine predictive gene mutations.

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Prophylactic use of letermovir (LMV) markedly reduces the incidence of early clinically significant cytomegalovirus (csCMV) infection within the first 100 days after allogeneic hematopoietic cell transplantation (allo-HCT), which improves transplant outcomes. However, some patients eventually develop late-csCMV infection (beyond day 100) after completing LMV prophylaxis. To assess the incidence of late-csCMV infection as well as its risk factors and impacts on transplant outcome, a total of 81 allo-HCT recipients who had not developed early csCMV infection during LMV prophylaxis were retrospectively analyzed.

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Background: We determined the long-term event incidence among elderly patients with nonvalvular atrial fibrillation in terms of history of stroke/transient ischemic attack (TIA) and oral anticoagulation.

Methods: Patients aged ≥75 years with documented nonvalvular atrial fibrillation enrolled in the prospective, multicenter, observational All Nippon Atrial Fibrillation in the Elderly Registry between October 2016 and January 2018 were divided into 2 groups according to history of stroke/TIA. The primary end point was the occurrence of stroke/systemic embolism within 2 years, and secondary end points were major bleeding and all-cause death within 2 years.

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The emergence of infections by carbapenem resistant Enterobacteriaceae (CRE) pathogens has created an urgent public health threat, as carbapenems are among the drugs of last resort for infections caused by a growing fraction of multi-drug resistant (MDR) bacteria. There is global consensus that new preventive and therapeutic strategies are urgently needed to combat the growing problem of MDR bacterial infections. Here, we report on the efficacy of a novel macrocyclic peptide, minimized theta-defensin (MTD)-12813 in CRE sepsis.

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We retrospectively compared the outcomes of reduced-intensity conditioning (RIC) transplantation from matched related donors (MRD; n = 266), matched unrelated donors (MUD; n = 277), and umbilical cord blood (UCB; n = 513) for mature lymphoid malignancies. The 3-year overall survival rates for the MRD, MUD, and UCB groups were 54%, 59%, and 40%, respectively (P < 0.001).

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Background: Global studies have demonstrated the efficacy and safety of blinatumomab-a BiTE (bispecific T-cell engager) targeted immuno-oncology therapy that mediates the lysis of cells expressing CD19 in patients with relapsed/refractory acute lymphoblastic leukemia (R/R ALL). Because limited data are available in Asian patients, we conducted a post hoc pooled analysis in 45 Asian adult patients with R/R ALL-19 from the blinatumomab arm of TOWER (NCT02013167) and 26 from Study 265, a phase 1b/2 study in Japanese adults (NCT02412306).

Methods: Patients received a maximum of two cycles of induction blinatumomab for 4 weeks by continuous intravenous infusion (cycle 1/week 1: 9 μg/day; cycle 1/weeks 2-4: 28 μg/day) followed by 2 weeks of no blinatumomab (each 6-week cycle); patients received 28 μg/day blinatumomab in subsequent cycles.

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We retrospectively analyzed 38 patients with AML who received azacitidine (AZA) to treat disease relapse after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Patients with objective response (OR) ( = 20) after AZA had significantly higher 2-year overall survival (OS) (45.0% vs 5.

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Recently, the use of targeted synthetic or biological disease-modifying anti-rheumatic drugs (ts/bDMARDs) in addition to conventional synthetic (cs)DMARDs including methotrexate (MTX) for rheumatoid arthritis (RA) has increased. However, whether ts/bDMARDs are associated with the development and clinicopathological features of MTX-associated lymphoproliferative disorder (MTX-LPD) in patients with RA remains unknown. Therefore, we evaluated the clinical outcomes of 121 patients with MTX-LPD.

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Oral anticoagulants (OACs) are effective in preventing stroke in patients with atrial fibrillation (AF), but are challenging for elderly patients because of the higher risk of bleeding complications. The ANAFIE Registry is a prospective multicenter observational study of elderly (≥75 years) Japanese AF patients. This subanalysis evaluated the current use of OACs.

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