Abstract:
:CD4+ T cell subset imbalance plays an important role in the development of diabetic complications. Neutrophils have recently been known as the regulator of CD4+ T cell differentiation. However, whether neutrophils affect CD4+ T cell population in diabetes is still elusive. In this study, we investigated the effect of neutrophils stimulated with advanced glycated end products (AGEs), the marker of diabetes, on CD4+ T cell differentiation and its underlying mechanism. Our data showed that the cultural medium of healthy adult neutrophils treated with AGEs increased expressions of both Th1 (IFN-γ) and Th17 (IL-17) phenotypes and the transcription factors of Th1 (Tbet) and Th17 (RORγt) in naive CD4+T cells and CD4+CD25+FoxP3+ (Treg) T cells in vitro. Next, we found that AGEs induced the generations of myeloperoxidase (MPO) and neutrophil elastase (NE) in neutrophils; inhibition of MPO or NE attenuated the effect of AGE-stimulated neutrophils on CD4+ T cell bias. Furthermore, receptor for AGEs (RAGE) inhibitor interrupted AGE-induced MPO and NE expressions, but MPO and NE inhibitions did not change AGE-increased RAGE gene expression. These results suggested that AGEs drive the effect of neutrophils on CD4+ T cell differentiation into pro-inflammatory program through inducing MPO and NE productions in neutrophils, which is mediated by AGE-RAGE interaction.
journal_name
Inflammationjournal_title
Inflammationauthors
Lu H,Xu S,Liang X,Dai Y,Huang Z,Ren Y,Lin J,Liu Xdoi
10.1007/s10753-018-0913-5subject
Has Abstractpub_date
2019-04-01 00:00:00pages
559-571issue
2eissn
0360-3997issn
1573-2576pii
10.1007/s10753-018-0913-5journal_volume
42pub_type
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