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Resveratrol and miR-222 Synergistically Regulate Apoptosis of Porcine (Sus scrofa) Ovarian Granulosa Cells |
ZHANG Hui-Bin, ZHOU Ren, XU Li-Ming, CHEN Yi-Ge, ZHANG Peng, YANG Ming-Yue, YANG Min, DING Yue-Yun, YIN Zong-Jun, ZHANG Xiao-Dong* |
College of Animal Science and Technology, Anhui Agricultural University/Anhui Provincial Key Laboratory of Genetic Resources Protection and Biological Breeding of Local Livestock and Poultry, Hefei 230036, China |
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Abstract Apoptosis of ovarian granulosa cells affects follicle development and ovulation in animals. Resveratrol plays an important role in the apoptosis of ovarian granulosa cells. This research was aimed to provide data support for the application of resveratrol in pig (Sus scrofa) production by analyzing the mechanism of resveratrol and miR-222 regulate the apoptosis of porcine ovarian granulosa cells (pGCs). The primary pGCs were treated with different concentrations of resveratrol (0~100 μmol/L), the morphological changes of pGCs were observed under an inverted microscope, the apoptosis rate and cell cycle distribution were detected by flow cytometry, and the expression of CyclinD, CyclinB, p21 and miR-222 were detected by the qRT-PCR method. The pGCs apoptosis change was also detected in the miR-222 overexpression condition. The results showed that when the concentration of resveratrol reached 100 μmol/L, the morphology of pGCs was changed, the apoptosis of pGCs was decreased and the cell cycle of pGCs was inhibited. The expression level of miR-222 was affected by different concentrations of resveratrol and reached the lowest level at 75 μmol/L. The pGCs apoptosis was significantly decreased when miR-222 overexpressed in 75 μmol/L resveratrol. These results indicated that resveratrol (100 μmol/L) could inhibit pGCs proliferation, and regulate miR-222 expression depend on the concentration. Overexpression of miR-222 could decrease pGCs apoptosis with 75 μmol/L resveratrol treatment. The results of the study provide more reference data for resveratrol combined miRNA to regulate the biological functions of pGCs.
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Received: 17 September 2020
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Corresponding Authors:
*xdzhang1983@163.com
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