The main aim of this study was to evaluate the impact of early T-cell chimerism status on the incidence and clinical course of acute graft-versus-host disease (aGVHD) in allogeneic transplant recipients after myeloablative conditioning. Of 62 patients, 38 (61%) had complete T-cell donor chimerism (DC), and 24 (39%) had mixed T-cell chimerism (MC). The incidence of early death (before day 100) with steroid-resistant aGVHD was significantly higher in patients with complete DC compared to patients with MC (6/38 vs. 0/24, p = 0.04). The time from aGVHD diagnosis to nonrelapse death was markedly different in patients with complete DC versus MC [53 days (range 12–183) vs. 238 days (range 135– 550), p = 0.005]. Conditioning with Etopophos/total body irradiation (TBI) resulted in significantly more patients with MC compared to conditioning with cyclophosphamide/TBI. In conclusion, early complete T-cell DC was associated with a high incidence of early death in patients receiving highdose steroids for the treatment of aGVHD.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1159/000357728 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A successful haploidentical transplantation without conditioning regimen for a relapsed/refractory multiple myeloma patient after chimeric antigen receptor T-cell therapy.
Cytotherapy
December 2024
Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China. Electronic address:
Background Aims: With novel therapies improving prognosis, the complications of multiple myeloma after multi-line treatment, particularly myelosuppression, have become a crucial determinant of long-term outcomes. Non-myeloablative allogeneic hematopoietic stem cell transplantation is a feasible option, but the transplant-related mortality rate remains high. Our study presents a relapsed/refractory multiple myeloma patient with a 9-year disease history.
View Article and Find Full Text PDFTIM-3 marks measurable residual leukemic stem cells responsible for relapse after allogeneic stem cell transplantation.
Cancer Sci
December 2024
Department of Medicine and Biosystemic Science, Kyushu University Graduate School of Medicine, Fukuoka, Japan.
In this study, we investigated the measurable residual leukemic stem cell (MR-LSC) population after allogeneic stem cell transplantation (allo-SCT) for high-risk acute myeloid leukemia (AML), utilizing T-cell immunoglobulin mucin-3 (TIM-3) expression as a functional marker of AML leukemic stem cells (LSCs). Analysis of the CD34CD38 fraction of bone marrow cells immediately after achievement of engraftment revealed the presence of both TIM-3LSCs and TIM-3 donor hematopoietic stem cells (HSCs) at varying ratios. Genetic analysis confirmed that TIM-3 cells harbored patient-specific mutations identical to those found in AML clones, whereas TIM-3 cells did not, indicating that TIM-3CD34CD38 cells represent residual AML LSCs.
View Article and Find Full Text PDFPost-transplant transient abnormal myelopoiesis evolving from a GATA1 mutant clone in umbilical cord blood.
Ann Hematol
December 2024
Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan.
Transient abnormal myelopoiesis (TAM) generally affects newborns with Down syndrome and is associated with constitutional trisomy 21 and a somatic GATA1 mutation. Here we describe a case of TAM which evolved after umbilical cord blood transplantation (UCBT), whose origin was identified as a GATA1 mutation-harboring clone in umbilical cord blood (UCB) by detailed genetic analyses. A 58-year-old male who received UCBT for peripheral T-cell lymphoma presented progressive anemia and thrombocytopenia, and leukocytosis with blast cells in the peripheral blood (PB).
View Article and Find Full Text PDFPersistent Antigen A after Minor ABO-Incompatible Hematopoietic Stem Cell Transplantation in Children: Two Case Reports.
Transfus Med Hemother
December 2024
Blood Transfusion Institute of Serbia, Belgrade, Serbia.
Introduction: ABO blood type changes after ABO-incompatible hematopoietic stem cell transplantation (HSCT). Most non-hematopoietic tissues retain the expression of the patient's own ABO antigens, which may adsorb from the plasma onto the donor's red blood cells (RBCs). Because of this phenomenon, a persistent patient's A and/or B antigen could be detected in the laboratory, despite 100% white cell donor chimerism.
View Article and Find Full Text PDFPerspectives in newborn screening for SCID in Japan. Case report: newborn screening identified X-linked severe combined immunodeficiency with a novel variant.
Front Immunol
December 2024
Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
Background: Newborn screening (NBS) for severe combined immunodeficiency (SCID) has improved the prognosis of SCID. In Japan, NBS testing (measurement of the T-cell receptor excision circles (TREC) and kappa-deleting recombination excision circles (KREC)) was launched in 2017 and has expanded nationwide in recent years. In this study, we report a Japanese patient with X-linked SCID with a novel variant identified through NBS.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!