Senescent cells suppress macrophage-mediated corpse removal via upregulation of the CD47-QPCT/L axis.
Senescent cells suppress macrophage-mediated corpse removal via upregulation of the CD47-QPCT/L axis.
复制标题
衰老细胞通过上调 CD47-QPCT/L 轴抑制巨噬细胞介导的尸体清除。
DOI:
10.1083/jcb.202207097
复制
发表时间:
2023-02-06
期刊:
影响因子:
--
通讯作者:
中科院分区:
文献类型:
--
作者:
Progressive accrual of senescent cells in aging and chronic diseases is associated with detrimental effects in tissue homeostasis. We found that senescent fibroblasts and epithelia were not only refractory to macrophage-mediated engulfment and removal, but they also paralyzed the ability of macrophages to remove bystander apoptotic corpses. Senescent cell-mediated efferocytosis suppression (SCES) was independent of the senescence-associated secretory phenotype (SASP) but instead required direct contact between macrophages and senescent cells. SCES involved augmented senescent cell expression of CD47 coinciding with increased CD47-modifying enzymes QPCT/L. SCES was reversible by interfering with the SIRPα-CD47-SHP-1 axis or QPCT/L activity. While CD47 expression increased in human and mouse senescent cells in vitro and in vivo, another ITIM-containing protein, CD24, contributed to SCES specifically in human epithelial senescent cells where it compensated for genetic deficiency in CD47. Thus, CD47 and CD24 link the pathogenic effects of senescent cells to homeostatic macrophage functions, such as efferocytosis, which we hypothesize must occur efficiently to maintain tissue homeostasis.
登录
查看更多内容
影响因子:
14.8
作者:
Jimenez-Sanchez M;Lam W;Hannus M;Sönnichsen B;Imarisio S;Fleming A;Tarditi A;Menzies F;Dami TE;Xu C;Gonzalez-Couto E;Lazzeroni G;Heitz F;Diamanti D;Massai L;Satagopam VP;Marconi G;Caramelli C;Nencini A;Andreini M;Sardone GL;Caradonna NP;Porcari V;Scali C;Schneider R;Pollio G;O'Kane CJ;Caricasole A;Rubinsztein DC
通讯作者:
Rubinsztein DC
DOI:
10.1146/annurev-pathol-121808-102144
发表时间:
2010
期刊:
Annual review of pathology
影响因子:
--
作者:
Coppé JP;Desprez PY;Krtolica A;Campisi J
通讯作者:
Campisi J
影响因子:
3.7
作者:
HAYFLICK, L;MOORHEAD, PS
通讯作者:
MOORHEAD, PS
影响因子:
16.6
作者:
Karin, Omer;Agrawal, Amit;Alon, Uri
通讯作者:
Alon, Uri
DOI:
10.1038/s43587-021-00121-8
发表时间:
2021-10
期刊:
Nature aging
影响因子:
--
作者:
Gasek NS;Kuchel GA;Kirkland JL;Xu M
通讯作者:
Xu M