Madan Jagasia
Faculty Member
Last active: 3/20/2014

Predicting posttransplantation diabetes mellitus by regulatory T-cell phenotype: implications for metabolic intervention to modulate alloreactivity.

Engelhardt BG, Jagasia SM, Crowe JE, Griffith ML, Savani BN, Kassim AA, Lu P, Weitkamp JH, Moore DJ, Yoder SM, Rock MT, Jagasia M
Blood. 2012 119 (10): 2417-21

PMID: 22262764 · PMCID: PMC3311262 · DOI:10.1182/blood-2011-10-384750

Chronic inflammation and decreased frequency of regulatory T cells (Tregs) in visceral adipose tissue contribute to the propagation of insulin resistance to diabetes mellitus. We tested the hypothesis that new-onset posttransplantation diabetes mellitus (PTDM) is associated with measurable changes in Treg subsets after allogeneic hematopoietic stem cell transplantation (HSCT). PTDM before day 100 and Treg phenotype at engraftment were determined in 36 HSCT recipients without preceding history of diabetes mellitus. Among patients with new-onset PTDM (N = 24), the frequency of circulating CLA(+) (skin-homing) Tregs was decreased (1.53% vs 3.99%; P = .002) and the percentage of α(4)β(7)(+) (gut-homing) Tregs was increased (17.9% vs 10.7%; P = .048). In multivariate analysis, patients with PTDM continued to demonstrate elevated ratios of α(4)β(7)(+) Tregs to CLA(+) Tregs (odds ratio, 18.1; P = .020). PTDM is associated with altered immune regulation after HSCT and could represent a target to modulate alloreactivity.

MeSH Terms (18)

Adult Aged Diabetes Mellitus Female Flow Cytometry Hematopoietic Stem Cell Transplantation Humans Immunophenotyping Male Middle Aged Multivariate Analysis Postoperative Complications Predictive Value of Tests Prognosis T-Lymphocytes, Regulatory Time Factors Transplantation, Homologous Young Adult

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