Reference Citation Analysis: Find an Article, Find a Category, Find a Journal, Find a Scholar

For:	[Subscribe] [Scholar Register]

Number

Cited by Other Article(s)

Umer S, Sammad A, Zou H, Khan A, Weldegebriall Sahlu B, Hao H, Zhao X, Wang Y, Zhao S, Zhu H. Regulation of AMH, AMHR-II, and BMPs (2,6) Genes of Bovine Granulosa Cells Treated with Exogenous FSH and Their Association with Protein Hormones. Genes (Basel) 2019;10:E1038. [PMID: 31842416 PMCID: PMC6947534 DOI: 10.3390/genes10121038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/06/2019] [Accepted: 12/10/2019] [Indexed: 12/14/2022] Open

Abstract

Anti-Mullerian hormone (AMH) is an important reproductive marker of ovarian reserve produced by granulosa cells (GCs) of pre-antral and early-antral ovarian follicles in several species, including cattle. This hormone plays a vital role during the recruitment of primordial follicles and follicle stimulating hormone (FSH)-dependent follicular growth. However, the regulatory mechanism of AMH expression in follicles is still unclear. In this study, we compared the expression of AMH, AMHR-II, BMP2, BMP6, FSHR, and LHCGR genes during follicular development. In-vitro expression study was performed with and without FSH for AMH, AMHR-II, BMP2, and BMP6 genes in bovine GCs which were isolated from 3-8 mm follicles. Association among the mRNA expression and hormone level was estimated. GCs were collected from small (3-8 mm), medium (9-12 mm) and large size (13 to 24 mm) follicles before, during onset, and after deviation, respectively. Further, mRNA expression, hormones (AMH, FSH, and LH), apoptosis of GCs, and cell viability were detected by qRT-PCR, ELISA, flow cytometry, and spectrophotometry. AMH, AMHR-II, BMP2, and FSHR genes were highly expressed in small and medium follicles as compared to large ones. In addition, the highest level of AMH protein (84.14 ± 5.41 ng/mL) was found in medium-size follicles. Lower doses of FSH increased the viability of bovine GCs while higher doses repressed them. In-vitro cultured GCs treated with FSH significantly increased the AMH, AMHR-II, and BMP2 expression levels at lower doses, while expression levels decreased at higher doses. We found an optimum level of FSH (25 ng/mL) which can significantly enhance AMH and BMP2 abundance (p < 0.05). In summary, AMH, AMHR-II, and BMP2 genes showed a higher expression in follicles developed in the presence of FSH. However, lower doses of FSH demonstrated a stimulatory effect on AMH and BMP2 expression, while expression started to decline at the maximum dose. In this study, we have provided a better understanding of the mechanisms regulating AMH, AMHR II, and BMP2 signaling in GCs during folliculogenesis, which would improve the outcomes of conventional assisted reproductive technologies (ARTs), such as superovulation and oestrus synchronization in bovines.

Collapse

Affiliation(s)

Saqib Umer Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.U.); (H.Z.); (B.W.S.); (H.H.); (X.Z.); (S.Z.)
Abdul Sammad Key Laboratory of Animal Genetics, Breeding and Reproduction, CAST, China Agricultural University, Beijing 100193, China; (A.S.); (A.K.); (Y.W.)
Huiying Zou Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.U.); (H.Z.); (B.W.S.); (H.H.); (X.Z.); (S.Z.)
Adnan Khan Key Laboratory of Animal Genetics, Breeding and Reproduction, CAST, China Agricultural University, Beijing 100193, China; (A.S.); (A.K.); (Y.W.)
Bahlibi Weldegebriall Sahlu Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.U.); (H.Z.); (B.W.S.); (H.H.); (X.Z.); (S.Z.)
Haisheng Hao Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.U.); (H.Z.); (B.W.S.); (H.H.); (X.Z.); (S.Z.)
Xueming Zhao Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.U.); (H.Z.); (B.W.S.); (H.H.); (X.Z.); (S.Z.)
Yachun Wang Key Laboratory of Animal Genetics, Breeding and Reproduction, CAST, China Agricultural University, Beijing 100193, China; (A.S.); (A.K.); (Y.W.)
Shanjiang Zhao Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.U.); (H.Z.); (B.W.S.); (H.H.); (X.Z.); (S.Z.)
Huabin Zhu Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.U.); (H.Z.); (B.W.S.); (H.H.); (X.Z.); (S.Z.)

Collapse