PMID: 25797293Mar 24, 2015Paper

Rapamycin treatment during in vitro maturation of oocytes improves embryonic development after parthenogenesis and somatic cell nuclear transfer in pigs

Journal of Veterinary Science
Joohyeong LeeEunsong Lee

Abstract

This study was conducted to investigate the effects of rapamycin treatment during in vitro maturation (IVM) on oocyte maturation and embryonic development after parthenogenetic activation (PA) and somatic cell nuclear transfer (SCNT) in pigs. Morphologically good (MGCOCs) and poor oocytes (MPCOCs) were untreated or treated with 1 nM rapamycin during 0-22 h, 22-42 h, or 0-42 h of IVM. Rapamycin had no significant effects on nuclear maturation and blastocyst formation after PA of MGCOCs. Blastocyst formation after PA was significantly increased by rapamycin treatment during 22-42 h and 0-42 h (46.6% and 46.5%, respectively) relative to the control (33.3%) and 0-22 h groups (38.6%) in MPCOCs. In SCNT, blastocyst formation tended to increase in MPCOCs treated with rapamycin during 0-42 h of IVM relative to untreated oocytes (20.3% vs. 14.3%, 0.05 < p < 0.1), while no improvement was observed in MGCOCs. Gene expression analysis revealed that transcript abundance of Beclin 1 and microtubule-associated protein 1 light chain 3 mRNAs was significantly increased in MPCOCs by rapamycin relative to the control. Our results demonstrated that autophagy induction by rapamycin during IVM improved developmental competence of oocytes derived fro...Continue Reading

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Citations

May 10, 2016·Cellular Reprogramming·Yong LiuJinghe Tan
Jul 8, 2016·Cell Cycle·Hak-Jae Chung, Inchul Choi
Feb 24, 2018·Cell Death & Disease·Fei-Hu LinJing-He Tan
Jul 18, 2017·Zygote : the Biology of Gametes and Early Embryos·Xiao-Chen LiJin-Dan Kang
Dec 26, 2019·The Journal of Reproduction and Development·Jianye LiMasashi Takahashi
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Jul 11, 2021·Reproductive Biology and Endocrinology : RB&E·Benjamin J HaleJason W Ross

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