CD8(+) tissue-resident memory T cells promote liver fibrosis resolution by inducing apoptosis of hepatic stellate cells.
CD8(+) tissue-resident memory T cells promote liver fibrosis resolution by inducing apoptosis of hepatic stellate cells.
复制标题
CD8(+)组织驻留记忆T细胞通过诱导肝星状细胞的凋亡促进肝纤维化的消退。
DOI:
10.1038/s41467-021-24734-0
复制
发表时间:
2021-07-22
影响因子:
16.6
通讯作者:
Nakamoto N
中科院分区:
文献类型:
--
作者:
Koda Y;Teratani T;Chu PS;Hagihara Y;Mikami Y;Harada Y;Tsujikawa H;Miyamoto K;Suzuki T;Taniki N;Sujino T;Sakamoto M;Kanai T;Nakamoto N
Non-alcoholic steatohepatitis (NASH) is a leading cause of chronic liver disease that can progress to liver fibrosis. Recent clinical advance suggests a reversibility of liver fibrosis, but the cellular and molecular mechanisms underlying NASH resolution remain unclarified. Here, using a murine diet-induced NASH and the subsequent resolution model, we demonstrate direct roles of CD8+ tissue-resident memory CD8+ T (CD8+ Trm) cells in resolving liver fibrosis. Single-cell transcriptome analysis and FACS analysis revealed CD69+CD103−CD8+ Trm cell enrichment in NASH resolution livers. The reduction of liver CD8+ Trm cells, maintained by tissue IL-15, significantly delayed fibrosis resolution, while adoptive transfer of these cells protected mice from fibrosis progression. During resolution, CD8+ Trm cells attracted hepatic stellate cells (HSCs) in a CCR5-dependent manner, and predisposed activated HSCs to FasL-Fas-mediated apoptosis. Histological assessment of patients with NASH revealed CD69+CD8+ Trm abundance in fibrotic areas, further supporting their roles in humans. These results highlight the undefined role of liver CD8+ Trm in fibrosis resolution. The cellular and molecular mechanisms underlying the resolution of non-alcoholic steatohepatitis remain incompletely understood. Here the authors report a single cell-based analysis that identified CD8 + tissue-resident memory T cells, which contribute to resolution of liver fibrosis potentially via elimination of hepatic stellate cells through Fas-mediated cytotoxicity.
登录
查看更多内容
影响因子:
6
作者:
Curbishley, SM;Eksteen, B;Adams, DH
通讯作者:
Adams, DH
影响因子:
82.9
作者:
Friedman SL;Neuschwander-Tetri BA;Rinella M;Sanyal AJ
通讯作者:
Sanyal AJ
影响因子:
29.4
作者:
Cotter, Thomas G.;Rinella, Mary
通讯作者:
Rinella, Mary
影响因子:
64.8
作者:
Dudek, Michael;Pfister, Dominik;Knolle, Percy A.
通讯作者:
Knolle, Percy A.
影响因子:
64.8
作者:
Khan, Omar;Giles, Josephine R.;Wherry, E. John
通讯作者:
Wherry, E. John