例如:"lncRNA", "apoptosis", "WRKY"

Somatically expressed germ-granule components, PGL-1 and PGL-3, repress programmed cell death in C. elegans.

Sci Rep. 2016 Sep 21;6:33884
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摘要


We previously reported that germline apoptosis in C. elegans increased by loss of PGL-1 and PGL-3, members of a family of constitutive germ-granule components, from germ cells in adult hermaphrodite gonads. In this study, we found that somatic apoptosis was reduced in synthetic multivulva class B (synMuv B) mutants due to ectopic expression of PGL-1 and PGL-3 in the soma. In synMuv B-mutant somatic cells, CED-4 expression level was reduced due to ectopic expression of PGL-1. Furthermore, in contrast to wild type, somatic apoptosis in synMuv B mutants increased following DNA damage in a SIR-2.1-dependent manner. Intriguingly, somatic apoptosis was repressed not only in synMuv B mutants but also by ectopically expressing pgl-1 and/or pgl-3 transgenes in wild-type somatic cells. Our study demonstrates that germ-granule components, PGL-1 and PGL-3, can serve as negative regulators of apoptosis not only in the germline but also in the soma in C. elegans.

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