Suppressor of cytokine signaling 6 (SOCS6) promotes mitochondrial fission via regulating DRP1 translocation.
Suppressor of cytokine signaling 6 (SOCS6) promotes mitochondrial fission via regulating DRP1 translocation.
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DOI:
10.1038/cdd.2012.106
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发表时间:
2013-01
影响因子:
12.4
通讯作者:
中科院分区:
文献类型:
--
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Mitochondria are highly motile organelles that constantly undergo fission and fusion. Impairment of mitochondrial dynamics is associated with mitochondrial dysfunction and is frequently linked to the pathogenesis of neurodegenerative diseases and cancer. We have previously shown that biallelic inactivation of the suppressor of cytokine signaling 6 (SOCS6) gene is a frequent event in human gastric cancer. In this study, we recapitulated the event of SOCS6 loss using a Lentivirus-based knockdown approach, and demonstrated the linkage between SOCS6 depletion and the suppression of programmed cell death. SOCS6 promotes intrinsic apoptosis, with increased Bax conformational change, mitochondrial targeting, and oligomerization. Most importantly, SOCS6 is targeted to mitochondria and induces mitochondrial fragmentation mediated through an increase in DRP1 fission activity. Here, we show that SOCS6 forms complex with DRP1 and the mitochondrial phosphatase PGAM5, attenuates DRP1 phosphorylation, and promotes DRP1 mitochondrial translocation. Based on mutation analyses, SOCS6-mediated apoptosis is tightly coupled to its ability to induce mitochondrial fission. This study demonstrates an important role for SOCS6 in modulating mitochondrial dynamics and apoptosis.
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影响因子:
3.5
作者:
Chen H;Chan DC
通讯作者:
Chan DC
影响因子:
4.8
作者:
Olichon, A;Baricault, L;Lenaers, G
通讯作者:
Lenaers, G
影响因子:
3.3
作者:
Oka, Toshihiko;Sayano, Tomoko;Mihara, Katsuyoshi
通讯作者:
Mihara, Katsuyoshi
影响因子:
7.5
作者:
Karbowski, Mariusz;Youle, Richard J.
通讯作者:
Youle, Richard J.
DOI:
10.1083/jcb.200211046
发表时间:
2003-01-20
期刊:
The Journal of cell biology
影响因子:
--
作者:
Chen H;Detmer SA;Ewald AJ;Griffin EE;Fraser SE;Chan DC
通讯作者:
Chan DC