Dynamic changes in CD4+ CD25+(high) T cell apoptosis after the diagnosis of type 1 diabetes

Clinical and Experimental Immunology
Sanja Glisic-MilosavljevicSoumitra Ghosh

Abstract

Because type 1 diabetes (T1D) is a chronic, autoimmune, T cell-mediated disease, interventions affecting T cells are expected to modulate the immune cascade and lead to disease remission. We propose that increased CD4(+) CD25(+high) T cell apoptosis, a trait we discovered in recent-onset T1D subjects, reflects T1D partial remission within the first 6 months after diagnosis. Apoptosis of forkhead box P3 (FoxP3)(+) CD4(+) CD25(+high) T cells, in addition to total daily doses of insulin (TDD), blood glucose, HbA1c and age, were measured in 45 subjects with T1D at various times after diagnosis. Sixteen healthy control subjects were also recruited to the study. Higher CD4(+) CD25(+high) T cell apoptosis levels were detected within the first 6 months of diagnosis (odds ratio = 1.39, P = 0.009), after adjustment for age, TDD and HbA1c. A proportional hazards model confirmed that the decline of apoptosis after diagnosis of T1D was related significantly to survival time (hazards ratio = 1.08, P = 0.014), with TDD and age also contributing to survival. During this time there was an inverse relationship between CD4(+) CD25(+high) T cell apoptosis with TDD (r = -0.39, P = 0.008). The CD4(+) CD25(+high) T cell apoptosis levels decline signi...Continue Reading

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Related Concepts

Hemoglobin A1c protein, human
Diabetes, Autoimmune
Drug Administration Schedule
Hb A1a-2
Novolin
Remission Induction
T-Lymphocyte Subsets
Apoptosis, Intrinsic Pathway
Tr1 Cells
Interleukin 2 Receptor, Alpha

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