A role for Rab7 in the movement of secretory granules in cytotoxic T lymphocytes.
A role for Rab7 in the movement of secretory granules in cytotoxic T lymphocytes.
复制标题
Rab7在分泌颗粒在细胞毒性T淋巴细胞中的运动中的作用。
DOI:
10.1111/j.1600-0854.2011.01194.x
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发表时间:
2011-07
期刊:
影响因子:
--
通讯作者:
Griffiths GM
中科院分区:
文献类型:
--
作者:
Daniele T;Hackmann Y;Ritter AT;Wenham M;Booth S;Bossi G;Schintler M;Auer-Grumbach M;Griffiths GM
Cytotoxic T lymphocytes (CTL) are potent killers of virally infected and tumorigenic cells. Upon recognition of target cells, CTL undergo polarized secretion of secretory lysosomes at the immunological synapse (IS) that forms between CTL and target. However, the molecular machinery involved in the polarization of secretory lysosomes is still largely uncharacterized. In this paper, we investigated the role of Rab7 in the polarization of secretory lysosomes. We show that silencing of Rab7 by RNA interference reduces the ability of CTL to kill targets. GTP-bound Rab7 and Rab interacting lysosomal protein, RILP, interact and both localize to secretory lysosomes in CTL. Over-expression of RILP recruits dynein to the membranes of secretory lysosomes and triggers their movement toward the centrosome. Together, these results suggest that Rab7 may play a role in secretory lysosome movement toward the centrosome by interacting with RILP to recruit the minus-end motor, dynein.
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影响因子:
11.4
作者:
Lebrand, C;Corti, M;Gruenberg, J
通讯作者:
Gruenberg, J
DOI:
10.1016/j.bbrc.2008.05.060
发表时间:
2008-07-25
影响因子:
3.1
作者:
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通讯作者:
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影响因子:
3.5
作者:
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通讯作者:
Taylor JP
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12.7
作者:
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通讯作者:
Bucci, Cecilia
影响因子:
3.9
作者:
Cogli, Laura;Piro, Francesco;Bucci, Cecilia
通讯作者:
Bucci, Cecilia