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Background: Acute graft-versus-host disease (aGvHD) is the primary cause of mortality following allogeneic hematopoietic cell transplantation (HCT).
Objectives: This study aimed to predict the risk of aGvHD after HCT in patients with thalassemia major using a novel predictive nomogram.
Design: A retrospective study was used to develop the prediction model.
Methods: We performed retrospective analyses on 402 consecutive thalassemia patients who underwent HCT. Risk factors for aGvHD were analyzed using Cox proportional regression models. T-lymphocyte subsets were collected from 240 patients at the time of neutrophil engraftment. Least Absolute Shrinkage and Selection Operator regression was utilized to screen the indices, with cut-off values established through restricted cubic spline (RCS) regression. The predictive model was developed by integrating these T-lymphocyte subsets with clinical features, aiming to enhance the accuracy of aGvHD risk prediction.
Results: Among 402 thalassemia patients analyzed post-transplantation, significant independent risk factors for aGvHD included matched unrelated donors, haploid-related donors, peripheral blood stem cell infusions, and donor age older than 40 years. Our RCS analysis indicated a marked increase in aGvHD risk when CD4+ T-cell counts exceeded 36 cells/μL and CD8+ T-cell counts exceeded 43 cells/μL during neutrophil engraftment. The integration of T-lymphocyte subsets with clinical risk factors into a Cox regression model demonstrated good predictive performance for assessing aGvHD risk.
Conclusion: This study presents a novel model designed to predict aGvHD in thalassemia patients post-transplantation by utilizing T-lymphocyte data at the time of engraftment. The model facilitates the creation of personalized treatment plans, aiming to minimize the incidence of aGvHD and improve patient outcomes.
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http://dx.doi.org/10.1177/20406207241294054 | DOI Listing |
Front Immunol
September 2025
Division of Rheumatology, Department of Medicine, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.
Background: Regulatory T cells (Tregs) are found to be critical for maintaining immune tolerance to self-antigens; however, their status in primary Sjögren's syndrome (pSS) remains unclear. We investigated alterations in the abundance of peripheral Tregs in a large pSS cohort and their implications for patients.
Methods: Levels of CD4+CD25+FOXP3+Treg cells in the peripheral blood of 624 patients with pSS, and 93 healthy controls (HCs) were detected using modified flow cytometry (FCM).
Front Immunol
September 2025
Medical Diagnostic and Microbiological Laboratory of Ludwik Rydygier Hospital in Suwalki, Suwalki, Poland.
Background: Dysregulation of immune responses may influence the progression of metabolic dysfunction-associated steatotic liver disease (MASLD) to metabolic dysfunction-associated steatohepatitis (MASH). Our recent data suggest the role of Th17-related cytokines in fibrosis advancement in MASLD. Herein, we aimed to analyze T-regulatory and Th17-producing T-lymphocytes by flow cytometry with respect to MASLD progression.
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September 2025
Key Laboratory of Major Chronic Diseases of Nervous System of Liaoning Province, Health Sciences Institute of China Medical University, Shenyang, China.
T cells are integral to the immune response, with distinct subsets exhibiting specialized functions, a phenomenon well-characterized in helper CD4 T cells. Recent advancements in single-cell RNA sequencing (scRNA-seq) have facilitated the identification of numerous novel CD8 T cell subsets, each characterized by unique functional properties. As cytotoxic T lymphocytes, the primary focus has been on the cytotoxic capabilities and antigen specificity of these subsets.
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September 2025
State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China.
Introduction: Autoimmune uveitis is a sight-threatening inflammatory eye disease driven by immune dysregulation. We previously introduced a therapeutic strategy involving the induction of retinal-antigen-specific regulatory T cells (Tregs) via αCD4 antibody injection followed by administration of the retinal self-peptide IRBP1-20, which effectively suppresses inflammation during the onset of experimental autoimmune uveitis (EAU).
Methods: We evaluated the long-term therapeutic efficacy of this approach in a chronic EAU model.
Front Immunol
September 2025
Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, United States.
Innate-like T cells (ILT), including γδ T cells (Vδ2s), Natural Killer T cells (NKTs) and Mucosal-associated Invariant T cells (MAITs), integrate innate and adaptive immunity, playing important roles in homeostatic conditions as well as during infection or inflammation. ILT are present on both sides of the fetal-maternal interface, but our knowledge of their phenotypical and functional features in neonates is limited. Using spectral flow cytometry we characterized cord blood ILT in neonates born to healthy women and women living with HIV.
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