Dynein Separately Partners with NDE1 and Dynactin To Orchestrate T Cell Focused Secretion.
Dynein Separately Partners with NDE1 and Dynactin To Orchestrate T Cell Focused Secretion.
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DOI:
10.4049/jimmunol.1600180
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发表时间:
2016-09-15
期刊:
影响因子:
--
通讯作者:
Poenie M
中科院分区:
文献类型:
--
作者:
Nath S;Christian L;Tan SY;Ki S;Ehrlich LI;Poenie M
Helper and cytotoxic T cells accomplish focused secretion through the clustering of vesicles around the MTOC and translocation of the MTOC to the target contact site. Here, using Jurkat cells and OT-I T cell receptor (TcR) transgenic primary murine CTLs, we show that the dynein-binding proteins NDE1 and dynactin (as represented by p150Glued) form mutually exclusive complexes with dynein, exhibit non-overlapping distributions in target-stimulated cells, and mediate different transport events. When Jurkat cells expressing a dominant negative form of NDE1 (NDE1-EGFP fusion) were activated by SEE-coated Raji cells, NDE1 and dynein failed to accumulate at the immunological synapse (IS) and MTOC translocation was inhibited. Knockdown of NDE1 in Jurkat cells or primary mouse CTLs also inhibited MTOC translocation and CTL-mediated killing. In contrast to NDE1, knockdown of p150Glued, which depleted the alternative dynein-dynactin complex, resulted in impaired accumulation of CTLA-4 and granzyme-B containing intracellular vesicles at the IS, while MTOC translocation was not affected. Depletion of p150Glued in CTLs also inhibited CTL-mediated lysis. We conclude that the NDE1/Lis1 and dynactin complexes separately mediate two key components of T cell focused secretion, namely translocation of the MTOC and lytic granules to the IS, respectively.
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DOI:
10.1073/pnas.1313474110
发表时间:
2013-11-19
影响因子:
11.1
作者:
Hackmann, Yvonne;Graham, Stephen C.;Griffiths, Gillian M.
通讯作者:
Griffiths, Gillian M.
DOI:
10.1084/jem.165.6.1565
发表时间:
1987-06-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Kupfer A;Swain SL;Singer SJ
通讯作者:
Singer SJ
影响因子:
--
作者:
KNOX, JD;MITCHEL, REJ;BROWN, DL
通讯作者:
BROWN, DL
影响因子:
4.4
作者:
Iida, T;Ohno, H;Saito, T
通讯作者:
Saito, T
影响因子:
64.5
作者:
CHEN, LP;ASHE, S;LINSLEY, PS
通讯作者:
LINSLEY, PS