Apoptotic regulators promote cytokinetic midbody degradation in C. elegans.

Apoptotic regulators promote cytokinetic midbody degradation in C. elegans.
复制标题

细胞凋亡调节因子促进秀丽隐杆线虫细胞因子中体降解

DOI:
10.1083/jcb.201209050
复制
发表时间:
2012-12-24
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Ou G
Ou G
中科院分区:
其他
文献类型:
--
作者:
Chai Y;Tian D;Yang Y;Feng G;Cheng Z;Li W;Ou G

文献摘要

参考文献

被引文献

相似文献

独立于它们在细胞凋亡中的作用,细胞吞噬蛋白对于细胞分裂后的中间体内化和降解是必不可少的。细胞死亡基因对于细胞凋亡和其他细胞事件是必不可少的,但是它们的非凋亡功能还不清楚。中间体是子细胞分裂所需的重要细胞动力学结构,但其在细胞分裂后的命运在后生动物中仍然是难以捉摸的。在本文中,我们表明,通过实时成像分析,在秀丽隐杆线虫Q细胞分裂产生的中间体被释放到细胞外空间后,dispensation和随后的内化和降解的吞噬细胞,吞噬细胞凋亡的Q细胞尸体。我们进一步表明,中间体降解是有缺陷的凋亡细胞吞噬突变体。外化磷脂酰丝氨酸(PS),一个吞噬信号的尸体吞噬,存在于外表面的中间体,并抑制PS信号延迟中间体清除。因此,我们的研究结果揭示了一种新的功能,细胞死亡基因在细胞分裂后的中间体内化和降解。
Independent of their role in apoptosis, cell engulfment proteins are essential for midbody internalization and degradation after cell division. Cell death genes are essential for apoptosis and other cellular events, but their nonapoptotic functions are not well understood. The midbody is an important cytokinetic structure required for daughter cell abscission, but its fate after cell division remains elusive in metazoans. In this paper, we show through live-imaging analysis that midbodies generated by Q cell divisions in Caenorhabditis elegans were released to the extracellular space after abscission and subsequently internalized and degraded by the phagocyte that digests apoptotic Q cell corpses. We further show that midbody degradation is defective in apoptotic cell engulfment mutants. Externalized phosphatidylserine (PS), an engulfment signal for corpse phagocytosis, exists on the outer surface of the midbody, and inhibiting PS signaling delayed midbody clearance. Thus, our findings uncover a novel function of cell death genes in midbody internalization and degradation after cell division.
DOI: 10.1016/j.cub.2012.05.052
发表时间: 2012-07-24
期刊: CURRENT BIOLOGY
影响因子: 9.2
作者:
Mapes, James;Chen, Yu-Zen;Kim, Anna;Mitani, Shohei;Kang, Byung-Ho;Xue, Ding
通讯作者: Xue, Ding
DOI: 10.1038/ncb1813
发表时间: 2009-01-01
影响因子: 21.3
作者:
Pohl, Christian;Jentsch, Stefan
通讯作者: Jentsch, Stefan
DOI: 10.1126/science.1196112
发表时间: 2010-10-29
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Ou G;Stuurman N;D'Ambrosio M;Vale RD
通讯作者: Vale RD
DOI: 10.1083/jcb.73.3.672
发表时间: 1977-06
影响因子: 7.8
作者:
Mullins, J M;Biesele, J J
通讯作者: Biesele, J J
DOI: 10.1038/nsmb.1512
发表时间: 2008-12
影响因子: 16.8
作者:
通讯作者: --