Efficient T Cell Migration and Activation Require L-Plastin.
Efficient T Cell Migration and Activation Require L-Plastin.
复制标题
DOI:
10.3389/fimmu.2022.916137
复制
发表时间:
2022
影响因子:
7.3
通讯作者:
中科院分区:
文献类型:
--
作者:
Rapid re-organization of the actin cytoskeleton supports T-cell trafficking towards immune sites and interaction with antigen presenting cells (APCs). F-actin rearrangement enables T-cell trafficking by stabilizing adhesion to vascular endothelial cells and promoting transendothelial migration. T-cell/APC immune synapse (IS) maturation also relies upon f-actin-anchored LFA-1:ICAM-1 ligation. Therefore, efficient T-cell responses require tight regulation of f-actin dynamics. In this review, we summarize how the actin-bundling protein L-plastin (LPL) regulates T-cell activation and migration. LPL enhances f-actin polymerization and also directly binds to the β2 chain of the integrin LFA-1 to support intercellular adhesion and IS formation in human and murine T cells. LPL- deficient T cells migrate slowly in response to chemo-attractants such as CXCL12, CCL19, and poorly polarize towards ICAM-1. Loss of LPL impairs thymic egress and intranodal motility. LPL is also required for T-cell IS maturation with APCs, and therefore for efficient cytokine production and proliferation. LPL-/- mice are less susceptible to T-cell mediated pathologies, such as allograft rejection and experimental autoimmune encephalomyelitis (EAE). LPL activity is regulated by its N-terminal “headpiece”, which contains serine and threonine phosphorylation and calcium- and calmodulin-binding sites. LPL phosphorylation is required for lamellipodia formation during adhesion and migration, and also for LFA-1 clustering during IS formation. However, the precise molecular interactions by which LPL supports T-cell functional responses remain unclear. Future studies elucidating LPL-mediated regulation of T-cell migration and/or activation may illuminate pathways for therapeutic targeting in T-cell-mediated diseases.
登录
查看更多内容
影响因子:
3.7
作者:
Al Tanoury Z;Schaffner-Reckinger E;Halavatyi A;Hoffmann C;Moes M;Hadzic E;Catillon M;Yatskou M;Friederich E
通讯作者:
Friederich E
DOI:
10.1083/jcb.201511053
发表时间:
2016-06-06
期刊:
The Journal of cell biology
影响因子:
--
作者:
Hu KH;Butte MJ
通讯作者:
Butte MJ
影响因子:
32.4
作者:
Chen, H;Mocsai, A;Brown, EJ
通讯作者:
Brown, EJ
影响因子:
7.8
作者:
Evans, JG;Correia, I;Matsudaira, P
通讯作者:
Matsudaira, P
DOI:
10.1073/pnas.1011556107
发表时间:
2010-09-14
影响因子:
11.1
作者:
Beinke, Soeren;Phee, Hyewon;Weiss, Arthur
通讯作者:
Weiss, Arthur