Title : All-trans retinoic acid promotes TGF-β-induced Tregs via histone modification but not DNA demethylation on Foxp3 gene locus.

Pub. Date : 2011

PMID : 21931768






5 Functional Relationships(s)
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1 BACKGROUND: It has been documented all-trans retinoic acid (atRA) promotes the development of TGF-beta-induced CD4(+)Foxp3(+) regulatory T cells (iTreg) that play a vital role in the prevention of autoimmune responses, however, molecular mechanisms involved remain elusive. Tretinoin forkhead box P3 Mus musculus
2 BACKGROUND: It has been documented all-trans retinoic acid (atRA) promotes the development of TGF-beta-induced CD4(+)Foxp3(+) regulatory T cells (iTreg) that play a vital role in the prevention of autoimmune responses, however, molecular mechanisms involved remain elusive. Tretinoin forkhead box P3 Mus musculus
3 METHODOLOGY/PRINCIPAL FINDINGS: Addition of atRA to naive CD4(+)CD25(-) cells stimulated with anti-CD3/CD28 antibodies in the presence of TGF-beta not only increased Foxp3(+) iTreg differentiation, but maintained Foxp3 expression through apoptosis inhibition. Tretinoin forkhead box P3 Mus musculus
4 METHODOLOGY/PRINCIPAL FINDINGS: Addition of atRA to naive CD4(+)CD25(-) cells stimulated with anti-CD3/CD28 antibodies in the presence of TGF-beta not only increased Foxp3(+) iTreg differentiation, but maintained Foxp3 expression through apoptosis inhibition. Tretinoin forkhead box P3 Mus musculus
5 Conversely, atRA markedly increased ERK1/2 activation, and blockade of ERK1/2 signaling completely abolished the enhanced effects of atRA on Foxp3 expression. Tretinoin forkhead box P3 Mus musculus