Abstract
Granulosa cells (GCs) and theca cells (TCs) are the main components of follicles, and the interactions between GCs and TCs play a significant role in steroidogenesis, follicular growth, and atresia. However, the effects of GCs in the form of conditioned medium on steroidogenesis in buffalo TCs remain unclear. In the present study, the impacts of GC-conditioned medium (GCCM) on androgen synthesis in buffalo TCs were examined. The results showed that GCCM collected at 48 h promoted both the expression levels of androgen synthesis-related genes (CYP11A1, CYP17A1, 3β-HSD, and Star) and the secretion levels of testosterone in TCs. The treatment time of 48 h in GCCM improved both the expression levels of androgen synthesis-related genes (CYP11A1, CYP17A1, 3β-HSD, and Star) and the secretion levels of testosterone in TCs. Furthermore, GCCM that was collected at 48 h and applied to TCs for 48 h (48 h and 48 h) promoted the sensitivity of buffalo TCs to LH. This study indicated that GCCM (48 h and 48 h) enhanced the steroidogenic competence of TCs mainly through facilitating the responsiveness of TCs to LH in buffalo. This study provides a basis for further exploration of interactions between GCs and TCs for steroidogenesis in the ovary.
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Data Availability
The data that support the findings of this study are available from the corresponding author upon reasonable request.
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The authors thank lab members.
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This research was supported by the grants from the Chinese National Natural Science Foundation (31560633 and 31760666); Natural Science Foundation of Guangxi (2018JJA130074); Guangxi Innovation-Driven Development Fund Project (AA17204051); Nanning Scientific Research and Technological Development Foundation (20192087), and The New Century Guangxi Ten, Hundred and Thousand Talent Project.
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Jun Zhang designed the study, performed the experiments, and drafted the manuscript. Fenghua Lu and Deshun Shi designed the study. Yanfei Deng performed the experiments and drafted the manuscript. Jianchun Xu and Xiaofen Yang helped in performing the experiments, collecting and analyzing the data. Haoxin Wang edited the manuscript and analyzed the data.
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All animal procedures used in this study are complied with the guidelines of Institutional Animal Care and Use Committee (IACUC) of Guangxi University.
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Editor: Tetsuji Okamoto
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Zhang, J., Deng, Y., Xu, J. et al. Granulosa cell-conditioned medium enhances steroidogenic competence of buffalo (Bubalus bubalis) theca cells. In Vitro Cell.Dev.Biol.-Animal 56, 799–807 (2020). https://doi.org/10.1007/s11626-020-00509-7
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DOI: https://doi.org/10.1007/s11626-020-00509-7