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- W2806355679 abstract "SIRT7, a member of the sirtuin family, with coenzyme NAD catalyzes protein deacetylation and has been implicated in multiple biologic processes; however, its function in mammalian oocytes remains to be explored. Here, we report disrupted meiotic maturation upon specific knockdown of SIRT7 in mouse oocytes. In particular, dis organized spindle/chromosomes and the loss of the cortical actin cap are readily observed in SIRT7-depleted oocytes, generating aneuploid eggs. Furthermore, we found that SIRT7 depletion markedly elevated reactive ox ygen species levels in oocytes, thereby compromising the developmental competence of early embryos. Of note, SIRT7 protein level is significantly decreased in oocytes from obese mice, and the forced expression of exogenous SIRT7 ameliorates maternal obesity-associated meiotic defects and oxidative stress in oocytes. In summary, our data suggest that SIRT7 is an essential factor in the determination of oocyte quality and may mediate the effects of obesity on female reproduction.—Gao, M., Li, X., He, Y., Han, L., Qiu, D., Ling, L., Liu, H., Liu, J., Gu, L. SIRT7 functions in redox homeostasis and cytoskeletal organization during oocyte maturation. FASEB J. 32, 6228–6238 (2018). www.fasebj.org" @default.
- W2806355679 created "2018-06-13" @default.
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- W2806355679 date "2018-06-07" @default.
- W2806355679 modified "2023-10-10" @default.
- W2806355679 title "SIRT7 functions in redox homeostasis and cytoskeletal organization during oocyte maturation" @default.
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- W2806355679 doi "https://doi.org/10.1096/fj.201800078rr" @default.
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