Activation-induced FOXP3 isoform profile in peripheral CD4+T cells is associated with coronary artery disease

作者：Lundberg Anna K; Jonasson Lena; Hansson Goran K; Mailer Reiner K W^*

来源：Atherosclerosis, 2017, 267: 27-33.

DOI：10.1016/j.atherosclerosis.2017.10.026

• FOXP3 isoforms
• Treg cells
• Coronary artery disease
• Alternative splicing

Background and aims: The expression of FOXP3 isoforms affects regulatory T (Treg) cell function. Reduced Treg cell function has been associated with coronary artery disease (CAD). However, alternative splicing of FOXP3 in CAD has not been investigated.
Methods: FOXP3 splice variants and IL17A transcripts in peripheral blood mononuclear cells from stable CAD patients and healthy controls were quantified, and FOXP3 isoform expression in response to T cell receptor (TCR) stimulation or LDL was analyzed by flow cytometry.
Results: Compared to healthy controls, CAD patients expressed significantly more FOXP3 transcripts that included exon 2, whereas alternative splicing of exon 7 in correlation with IL17A expression was reduced. Moreover, TCR stimulation, as well as exposure to LDL, decreased alternative splicing of FOXP3 in CD4+ T cells in vitro.
Conclusions: Our results demonstrate that blood mononuclear cells in stable CAD patients express a ratio of FOXP3 isoforms that is characteristic for activated CD4+ T cells.

• 出版日期2017-12