CD147 deficiency in T cells prevents thymic involution by inhibiting the EMT process in TECs in the presence of TGFβ.
CD147 deficiency in T cells prevents thymic involution by inhibiting the EMT process in TECs in the presence of TGFβ.
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T 细胞中的 CD147 缺陷通过在 TGF beta 存在的情况下抑制 TEC 中的 EMT 过程来防止胸腺复旧
DOI:
10.1038/s41423-019-0353-7
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发表时间:
2021-01
影响因子:
24.1
通讯作者:
Chen ZN
中科院分区:
文献类型:
--
作者:
Chen R;Wang K;Feng Z;Zhang MY;Wu J;Geng JJ;Chen ZN
Thymic involution during aging is a major cause of decreased T-cell production and reduced immunity. Here, we show that the loss of CD147 on T cells prevents thymic senescence, resulting in slowed shrinkage of the thymus with age and increased production of naive T cells. This phenotype is the result of slowing of the epithelial–mesenchymal transition (EMT) process in thymic epithelial cells (TECs), which eventually leads to reduced adipocyte accumulation. In an in vitro coculture system, we found that TGFβ is an important factor in the EMT process in TECs and that it can reduce the expression of E-cadherin through p-Smad2/FoxC2 signaling. Moreover, CD147 on T cells can accelerate the decline in E-cadherin expression by interacting with Annexin A2 on TECs. In the presence of TGFβ, Annexin A2 and E-cadherin colocalize on TECs. However, CD147 on T cells competitively binds to Annexin A2 on TECs, leading to the isolation of E-cadherin. Then, the isolated E-cadherin is easily phosphorylated by phosphorylated Src kinase, the phosphorylation of which was induced by TGFβ, and finally, p-E-cadherin is degraded. Thus, in the thymus, the interaction between T cells and TECs contributes to thymic involution with age. In this study, we illuminate the mechanism underlying the triggering of the EMT process in TECs and show that inhibiting TGFβ and/or CD147 may serve as a strategy to hinder age-related thymic involution.
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影响因子:
24.1
作者:
Guo N;Ye S;Zhang K;Yu X;Cui H;Yang X;Lin P;Lv M;Miao J;Zhang Y;Han Q;Zhang R;Chen Z;Zhu P
通讯作者:
Zhu P
DOI:
10.1084/jem.173.5.1039
发表时间:
1991-05-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Agus DB;Surh CD;Sprent J
通讯作者:
Sprent J
DOI:
10.4196/kjpp.2016.20.5.515
发表时间:
2016-09
期刊:
The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology
影响因子:
--
作者:
Kim MY;Cho JY
通讯作者:
Cho JY
影响因子:
2.9
作者:
Hale, LP;Clark, AG;Kraus, VB
通讯作者:
Kraus, VB
影响因子:
7.8
作者:
Chinn IK;Blackburn CC;Manley NR;Sempowski GD
通讯作者:
Sempowski GD