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Research Article: Lipid biomarkers of GVHD in allogeneic stem hematopoietic cell transplantation patients

Date Published: 2025-09-02

Abstract:
While dyslipidemia is established as a key modulator of innate and adaptive immune responses, its role in hematopoietic reconstitution remains unclear. This study aimed to characterize lipid profiles in patients undergoing allogeneic hematopoietic stem cell transplantation (HSCT) and evaluate the associations between dyslipidemia and clinical outcomes. A retrospective analysis was conducted in a cohort of 106 adult patients (?18 years) who underwent allogeneic HSCT between January 2019 and December 2023 and had complete lipid records. Profound dyslipidemia was observed post-transplantation, with over 60% of patients developing significantly decreased high-density lipoprotein cholesterol (HDL-C) and elevated triglycerides (TG), total cholesterol (TC), and low-density lipoprotein cholesterol (LDL-C) compared to baseline. HDL-C reached its nadir around day 14 and recovered slowly thereafter. Patients with grade III–IV acute graft-versus-host disease (GVHD) exhibited significantly lower HDL-C levels compared to those without GVHD. Lower HDL-C levels were correlated with delayed neutrophil engraftment and inferior GVHD-free/relapse-free survival (GRFS), though not with overall survival (OS). An HDL-C threshold of ?0.84 mmol/L was identified as an independent predictor of GVHD. Early post-transplant HDL-C dynamics represent a promising biomarker for GVHD risk stratification. These findings support the incorporation of protocolized lipid monitoring into HSCT management to guide preemptive therapeutic interventions.

Introduction:
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is an effective therapy for patients with aggressive hematological malignancies and nonmalignant hematological disorders. However, graft-versus-host disease (GVHD) remains a critical threat to survival post-transplantation. It is well known that the success of HSCT is mostly the result of achieving a balance between graft-versus-tumor and graft-versus-host effects. Controlling the alloimmune response to decrease relapse without increasing GVHD is a…

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