A TCR mechanotransduction signaling loop induces negative selection in the thymus.
A TCR mechanotransduction signaling loop induces negative selection in the thymus.
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DOI:
10.1038/s41590-018-0259-z
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发表时间:
2018-12
影响因子:
30.5
通讯作者:
Zhu C
中科院分区:
文献类型:
--
作者:
Hong J;Ge C;Jothikumar P;Yuan Z;Liu B;Bai K;Li K;Rittase W;Shinzawa M;Zhang Y;Palin A;Love P;Yu X;Salaita K;Evavold BD;Singer A;Zhu C
The T cell antigen receptor (TCR) expressed on thymocytes interacts with self peptide-major histocompatibility complex (pMHC) ligands to signal apoptosis or survival. Here we found that negative-selection ligands induced thymocytes to exert forces on the TCR and the coreceptor CD8 and formed cooperative TCR–pMHC–CD8 trimolecular ‘catch bonds’, whereas positive-selection ligands induced less sustained thymocyte forces on TCR and CD8 and formed shorter-lived, independent TCR–pMHC and pMHC–CD8 bimolecular ‘slip bonds’. Catch bonds were not intrinsic to either the TCR–pMHC or the pMHC–CD8 arm of the trans (cross-junctional) heterodimer but resulted from coupling of the extracellular pMHC–CD8 interaction to the intracellular interaction of CD8 to TCR-CD3 via associated kinases to form a cis (lateral) heterodimer capable of inside-out signaling. We suggest that the coupled trans-cis heterodimeric interactions form a mechanotransduction loop that reinforces negative-selection signaling that is distinct from positive-selection signaling in the thymus.
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DOI:
10.1084/jem.194.10.1485
发表时间:
2001-11-19
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Arcaro A;Grégoire C;Bakker TR;Baldi L;Jordan M;Goffin L;Boucheron N;Wurm F;van der Merwe PA;Malissen B;Luescher IF
通讯作者:
Luescher IF
影响因子:
64.8
作者:
Daniels, Mark A.;Teixeiro, Emma;Palmer, Ed
通讯作者:
Palmer, Ed
DOI:
10.4049/jimmunol.1501407
发表时间:
2015-10-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Hong J;Persaud SP;Horvath S;Allen PM;Evavold BD;Zhu C
通讯作者:
Zhu C
影响因子:
16.8
作者:
Hui E;Vale RD
通讯作者:
Vale RD
影响因子:
64.8
作者:
Alam, SM;Travers, PJ;Gascoigne, NRJ
通讯作者:
Gascoigne, NRJ