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Cai J, Luo X, Wang Z, Chen Z, Huang D, Cao H, Chen J, Wu J. Comparing GDF9 in mature follicles and clinical outcomes across different PCOS phenotype. Heliyon 2024; 10:e29879. [PMID: 38711644 PMCID: PMC11070807 DOI: 10.1016/j.heliyon.2024.e29879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 05/08/2024] Open
Abstract
Background Polycystic ovary syndrome (PCOS) is main cause of anovulatory infertility in women with gestational age. There are currently four distinct phenotypes associated with individualized endocrinology and metabolism. Growth differentiation factor 9 (GDF9) is a candidate as potential biomarker for the assessment of oocyte competence. The effect on oocyte capacity has not been evaluated and analyzed in PCOS phenotypes. Objective We aimed to screen the expression levels of GDF9 in mature follicles of women with controlled ovarian hyperstimulation (COS) with different PCOS phenotypes. To determine the correlation between the expression level of GDF9 and oocyte development ability. Methods In Part 1, we conducted a retrospective study comparing the clinical outcomes and endocrine characteristics of patients with PCOS according to different subgroups (depending on the presence or absence of the main features of polycystic ovarian morphology (PCOM), hyperandrogenism (HA), and oligo-anovulation (OA)) and non-PCOS control group. We stratified PCOS as phenotype A (n = 29), phenotype B (n = 18) and phenotype D (n = 24). In Part 2, the expression of GDF9 in follicular fluid (FF) and cumulus cells (CCs) were detected by enzyme-linked immunosorbent assay (ELISA) and immunohistochemistry, respectively. Results In Part 1, the baseline clinical, hormonal, and ultrasonographic characteristics of the study population were matched with the presence or absence of the cardinal features of each PCOS phenotypes showed a clear difference. Phenotypes A and D had statistically significant associations with blastocyst formation and clinical pregnancy compared with phenotypes B (p < 0.001). In Part 2, the levels of GDF9 in FF and CCs for phenotype A and B were significantly were higher than those of phenotype D (P = 0.019, P = 0.0015, respectively). Multivariate logistic regression analysis showed that GDF9 was an important independent predictor of blastocyst formation (P<0.001). The blastocyst formation rate of phenotype A was higher than that of phenotype B and D (P<0.001). Combining the results of the two parts, GDF9 appears to play a powerful role in the development of embryos into blastocysts. Conclusions GDF9 expression varies with different PCOS phenotypes. Phenotype A had higher GDF9 levels and blastocyst formation ability.
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Affiliation(s)
- Jingjing Cai
- Department of Reproductive Medcine, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, FuJian, 362000, PR China
| | - Xiangmin Luo
- Department of Reproductive Medcine, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, FuJian, 362000, PR China
| | - Zhengyao Wang
- Department of Reproductive Medcine, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, FuJian, 362000, PR China
| | - Zixuan Chen
- Department of Clinical Laboratory, Fujian Medical University Affiliated First Quanzhou Hospital, Quanzhou, FuJian, 362000, PR China
| | - Donghong Huang
- Department of Clinical Laboratory, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, FuJian, 362000, PR China
| | - Hui Cao
- Department of Reproductive Medcine, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, FuJian, 362000, PR China
| | - Jing Chen
- Department of Reproductive Medcine, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, FuJian, 362000, PR China
| | - Jinxiang Wu
- Department of Reproductive Medcine, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, FuJian, 362000, PR China
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2
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Tang Y, Lu S, Wei J, Xu R, Zhang H, Wei Q, Han B, Gao Y, Zhao X, Peng S, Pan M, Ma B. Growth differentiation factor 9 regulates the expression of estrogen receptors via Smad2/3 signaling in goat cumulus cells. Theriogenology 2024; 219:65-74. [PMID: 38402699 DOI: 10.1016/j.theriogenology.2024.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/04/2024] [Accepted: 02/20/2024] [Indexed: 02/27/2024]
Abstract
Both oocyte secretory factors (OSFs) and estrogen are essential for the development and function of mammalian ovarian follicles, playing synergistic role in regulating oocyte growth. OSFs can significantly affect the biological processes regulated by estrogen in cumulus cells (CCs). It is a scientific question worth investigating whether oocyte secretory factors can influence the expression of estrogen receptors in CCs. In our study, we observed a significant increase in the mRNA and protein expressions of estrogen receptor β (Esr2/ERβ) and G-protein-coupled estrogen receptor (GPER) in cumulus cells of goat cumulus-oocyte complexes (COCs) cultured in vitro for 6 h. Furthermore, the addition of 10 ng/mL growth-differentiation factor 9 (GDF9) and 5 ng/mL bone morphogenetic protein 15 (BMP15) to the culture medium of goat COCs resulted in a significant increase in the expressions of ERβ and GPER in cumulus cells. To explore the mechanism further, we performed micromanipulation to remove oocyte contents and co-cultured the oocytectomized complexes (OOXs) with denuded oocytes (DOs) or GDF9/BMP15. The expressions of ERβ and GPER in the co-culture groups were significantly higher than those in the OOXs group, but there was no difference compared to the COCs group. Mechanistically, we found that SB431542 (inhibitor of GDF9 bioactivity), but not LDN193189 (inhibitor of BMP15 bioactivity), abolished the upregulation of ERβ and GPER in cumulus cells and the activation of Smad2/3 signaling. In conclusion, our results demonstrate that the oocyte secretory factor GDF9 promotes the activation of Smad2/3 signaling in cumulus cells during goat COCs culture in vitro, and the phosphorylation of Smad2/3 induces the expression of estrogen receptors ERβ and GPER in cumulus cells.
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Affiliation(s)
- Yaju Tang
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Sihai Lu
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Juncai Wei
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Rui Xu
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Hui Zhang
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Qiang Wei
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Bin Han
- Yulin Animal Husbandry and Veterinary Service Center, Yulin, 719000, Shaanxi, PR China
| | - Yan Gao
- Yulin Animal Husbandry and Veterinary Service Center, Yulin, 719000, Shaanxi, PR China
| | - Xiaoe Zhao
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Sha Peng
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Menghao Pan
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, PR China
| | - Baohua Ma
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi, PR China.
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3
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Edure T, Matsuno Y, Matsushita K, Maruyama N, Fujii W, Naito K, Sugiura K. Dynamics of extracellular vesicle uptake by mural granulosa cells in mice. Mol Reprod Dev 2024; 91:e23737. [PMID: 38450862 DOI: 10.1002/mrd.23737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 01/13/2024] [Accepted: 02/20/2024] [Indexed: 03/08/2024]
Abstract
Extracellular vesicles (EVs) play an important role in the development and function of mammalian ovarian follicles. However, the mechanisms by which they are taken up by the follicular granulosa cells remain unclear. In addition, while oocytes play a pivotal role in follicular development, the possible interactions between oocyte-derived paracrine factors (ODPFs) and EV signals are unknown. Therefore, this study aimed to elucidate the mechanism of EV uptake and the effects of ODPFs on EV uptake by follicular somatic mural granulosa cells in mice. Fluorescence-labeled transferrin (TRF) and cholera toxin B (CTB), substrates for clathrin- and caveolae-mediated endocytosis, respectively, were taken up by mural granulosa cells in vitro. Their uptake was inhibited by Pitstop 2 and genistein, inhibitors of clathrin and caveolae pathways, respectively. Mural granulosa cells took up EVs, and this uptake was suppressed by Pitstop 2 and genistein. Moreover, ODPFs promoted the uptake of EVs and CTB, but not TRF, by mural granulosa cells. These results suggest that mural granulosa cells take up EVs through both clathrin- and caveolae-mediated endocytosis and that oocytes may promote caveolae-mediated endocytosis to facilitate the uptake of EVs.
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Affiliation(s)
- Taichi Edure
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuta Matsuno
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kodai Matsushita
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Natsumi Maruyama
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Wataru Fujii
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kunihiko Naito
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Koji Sugiura
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Akimoto Y, Fujii W, Naito K, Sugiura K. The effect of ACVR1B/TGFBR1/ACVR1C signaling inhibition on oocyte and granulosa cell development during in vitro growth culture. J Reprod Dev 2023; 69:270-278. [PMID: 37722883 PMCID: PMC10602769 DOI: 10.1262/jrd.2023-041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/18/2023] [Indexed: 09/20/2023] Open
Abstract
The signals of the transforming growth factor β (TGF-β) superfamily play a critical role in follicular development in mammals. ACVR1B/TGFBR1/ACVR1C receptors mediate the signaling of several TGF-β superfamily ligands in granulosa cells. Although the requirement for ACVR1B/TGFBR1/ACVR1C receptor signaling in follicular development has been confirmed using mutant mouse models, the detailed roles of the signaling in granulosa cell and oocyte development have not been clearly defined. In the present study, we examined the requirement for ACVR1B/TGFBR1/ACVR1C receptor signaling in granulosa cells using an in vitro growth culture of oocyte-granulosa cell complexes (OGCs) and SB431542, a potent inhibitor of the receptor signaling. Although cumulus-oocyte complexes isolated from the control OGCs were able to undergo cumulus expansion, those isolated from OGCs grown with the inhibitor were not competent, even in the presence of in vivo-grown oocytes. The diameter of the oocytes in the SB431542-treated OGCs was comparable with that of the control; however, these oocytes were not competent for complete meiotic maturation or preimplantation development. Therefore, ACVR1B/TGFBR1/ACVR1C receptor signaling is not required for oocytes to increase their volume but is essential for the normal development of cumulus cells and oocyte developmental competence.
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Affiliation(s)
- Yuki Akimoto
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Wataru Fujii
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
- Present: Department of Veterinary Medical Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Kunihiko Naito
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Koji Sugiura
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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5
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Jiang Y, He Y, Pan X, Wang P, Yuan X, Ma B. Advances in Oocyte Maturation In Vivo and In Vitro in Mammals. Int J Mol Sci 2023; 24:9059. [PMID: 37240406 PMCID: PMC10219173 DOI: 10.3390/ijms24109059] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
The quality and maturation of an oocyte not only play decisive roles in fertilization and embryo success, but also have long-term impacts on the later growth and development of the fetus. Female fertility declines with age, reflecting a decline in oocyte quantity. However, the meiosis of oocytes involves a complex and orderly regulatory process whose mechanisms have not yet been fully elucidated. This review therefore mainly focuses on the regulation mechanism of oocyte maturation, including folliculogenesis, oogenesis, and the interactions between granulosa cells and oocytes, plus in vitro technology and nuclear/cytoplasm maturation in oocytes. Additionally, we have reviewed advances made in the single-cell mRNA sequencing technology related to oocyte maturation in order to improve our understanding of the mechanism of oocyte maturation and to provide a theoretical basis for subsequent research into oocyte maturation.
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Affiliation(s)
- Yao Jiang
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Yingting He
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Xiangchun Pan
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Penghao Wang
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
| | - Xiaolong Yuan
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Bin Ma
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
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Pan MH, Xu R, Zhang Y, Yin L, Li R, Wen D, Lu S, Gao Y, Zhao X, Wei Q, Han B, Ma B. The Impact of Arp2/3 Complex Inhibition on Cytoskeleton Dynamics and Mitochondrial Function during Goat Oocyte Meiosis. Animals (Basel) 2023; 13:ani13020263. [PMID: 36670803 PMCID: PMC9854427 DOI: 10.3390/ani13020263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/10/2023] [Accepted: 01/10/2023] [Indexed: 01/13/2023] Open
Abstract
F-actin is of critical importance in oocyte meiotic maturation. Actin assembly and its dynamics are mainly regulated by actin nucleation factors. The actin-related protein complex 2/3 (Arp2/3) is responsible for the organization of F-actin filaments. However, the role of Arp2/3 complex in goat oocytes has not been fully elucidated. Our findings demonstrate that Arp2/3 complex activity is necessary for the maturation of goat oocytes. The Arp2/3 complex-specific inhibitor CK666 impairs the maturation of goat oocytes and alters the genes associated with cumulus expansion, both of which suggest that normal meiosis is affected. Arp2, one of the subunits of the Arp2/3 complex, was found to be mainly accumulated at the oocyte cortex and to co-localize with F-actin during goat oocyte maturation in our results. Thus, we further investigated the cytoskeleton dynamics and found that Arp2/3 complex inhibition disrupts the F-actin assembly and spindle organization. Further analysis revealed that, in addition to direct effects on the cytoskeleton, Arp2/3 complex could also induce ROS accumulation and oxidative stress by disrupting mitochondrial distribution and function, ultimately increasing the rate of early apoptosis in goat oocytes. Our study provides evidence that the Arp2/3 complex is a key regulator of goat oocyte maturation through its regulation of the cytoskeleton dynamics and mitochondrial function.
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Affiliation(s)
- Meng-Hao Pan
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Rui Xu
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Yiqian Zhang
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Lu Yin
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Ruoyu Li
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Dongxu Wen
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Sihai Lu
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Yan Gao
- Yulin Animal Husbandry and Veterinary Service Center, Yulin 719000, China
| | - Xiaoe Zhao
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Qiang Wei
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
| | - Bin Han
- Yulin Animal Husbandry and Veterinary Service Center, Yulin 719000, China
- Correspondence: (B.H.); (B.M.)
| | - Baohua Ma
- College of Veterinary Medicine, Northwest A&F University/Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, China
- Correspondence: (B.H.); (B.M.)
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Sugiura K, Maruyama N, Akimoto Y, Matsushita K, Endo T. Paracrine regulation of granulosa cell development in the antral follicles in mammals. Reprod Med Biol 2023; 22:e12538. [PMID: 37638351 PMCID: PMC10457553 DOI: 10.1002/rmb2.12538] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 08/29/2023] Open
Abstract
Background Development of ovarian follicles is regulated by a complex interaction of intra- and extra-follicular signals. Oocyte-derived paracrine factors (ODPFs) play a central role in this process in cooperation with other signals. Methods This review provides an overview of the recent advances in our understanding of the paracrine regulation of antral follicle development in mammals. It specifically focuses on the regulation of granulosa cell development by ODPFs, along with other intrafollicular signals. Main Findings Bi-directional communication between oocytes and surrounding cumulus cells is a fundamental mechanism that determines cumulus cell differentiation. Along with estrogen, ODPFs promote the expression of forkhead box L2, a critical transcription factor required for mural granulosa cells. Follicle-stimulating hormone (FSH) facilitates these processes by stimulating estrogen production in mural granulosa cells. Conclusion Cooperative interactions among ODPFs, FSH, and estrogen are critical in determining the fate of cumulus and mural granulosa cells, as well as the development of oocytes.
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Affiliation(s)
- Koji Sugiura
- Graduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
| | - Natsumi Maruyama
- Graduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
| | - Yuki Akimoto
- Graduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
| | - Kodai Matsushita
- Graduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
| | - Tsutomu Endo
- Graduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan
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Ito H, Emori C, Kobayashi M, Maruyama N, Fujii W, Naito K, Sugiura K. Cooperative effects of oocytes and estrogen on the forkhead box L2 expression in mural granulosa cells in mice. Sci Rep 2022; 12:20158. [PMID: 36424497 PMCID: PMC9691737 DOI: 10.1038/s41598-022-24680-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 11/18/2022] [Indexed: 11/27/2022] Open
Abstract
Forkhead box L2 (FOXL2) plays a critical role in the development and function of mammalian ovaries. In fact, the causative effects of FOXL2 misregulations have been identified in many ovarian diseases, such as primary ovarian insufficiency and granulosa cell tumor; however, the mechanism by which FOXL2 expression is regulated is not well studied. Here, we showed that FOXL2 expression in ovarian mural granulosa cells (MGCs) requires stimulation by both oocyte-derived signals and estrogen in mice. In the absence of oocytes or estrogen, expression of FOXL2 and its transcriptional targets, Cyp19a1 and Fst mRNA, in MGCs were significantly decreased. Moreover, expression levels of Sox9 mRNA, but not SOX9 protein, were significantly increased in the FOXL2-reduced MGCs. FOXL2 expression in MGCs was maintained with either oocytes or recombinant proteins of oocyte-derived paracrine factors, BMP15 and GDF9, together with estrogen, and this oocyte effect was abrogated with an ALK5 inhibitor, SB431542. In addition, the FOXL2 level was significantly decreased in MGCs isolated from Bmp15-/- /Gdf9+/- mice. Therefore, oocyte, probably with estrogen, plays a critical role in the regulation of FOXL2 expression in mural granulosa cells in mice.
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Affiliation(s)
- Haruka Ito
- grid.26999.3d0000 0001 2151 536XLaboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Chihiro Emori
- grid.26999.3d0000 0001 2151 536XLaboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan ,grid.136593.b0000 0004 0373 3971Present Address: Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Mei Kobayashi
- grid.26999.3d0000 0001 2151 536XLaboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Natsumi Maruyama
- grid.26999.3d0000 0001 2151 536XLaboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Wataru Fujii
- grid.26999.3d0000 0001 2151 536XLaboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kunihiko Naito
- grid.26999.3d0000 0001 2151 536XLaboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Koji Sugiura
- grid.26999.3d0000 0001 2151 536XLaboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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9
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Sun X, Tang F, Guo Q, Liu Y, He Y, Du Y, Gao F, Zhang G, Yang C. HAS2-Ezrin-ER axis plays a role in acquired antiestrogen resistance of ER-positive breast cancer. Front Pharmacol 2022; 13:1031487. [PMID: 36386154 PMCID: PMC9659586 DOI: 10.3389/fphar.2022.1031487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/20/2022] [Indexed: 08/13/2023] Open
Abstract
The development of endocrine resistance is a major clinical problem in estrogen receptor-positive (ER+) breast cancer (BrCa) treatment, in which how cancer cells acquire resistance remains obscure. Hyaluronan synthase 2 (HAS2) is the most critical synthase in producing hyaluronan and is well known for its involvement in cancer growth, metabolism and metastasis. Recent evidence has proved that HAS2 is involved in cellular acquired resistance to drug therapy in BrCa. In this work, we first observed that HAS2 expression was decreased in the endocrine-resistant ER+ BrCa cells. Further knocking-out experiments confirmed that the loss of HAS2 in parental ER+ BrCa cells resulted in a following antiestrogen resistance. Next, we found that the HAS2-loss could induce an upregulation of Ezrin, a member of the membrane cytoskeletal protein family who plays key roles in cellular signal transduction. Notably, we identified that the increase of Ezrin induced by HAS2-loss could inhibit the ERα expression and augment antiestrogen resistance, suggesting that a HAS2-Ezrin-ER axis may be associated with the acquirement of endocrine resistance in ER+ BrCa cells. Finally, knockdown or inhibition of Ezrin could restore the sensitivity of endocrine-resistant cells to antiestrogens treatment by activating ERα signaling. Taken together, our findings unraveled a novel HAS2-Ezrin-ER route in regulating the sensitivity of ER+ BrCa cells to antiestrogens, in which Ezrin may be a potential target in endocrine therapy.
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Affiliation(s)
- Xiaodan Sun
- Department of Clinical Laboratory, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Molecular Biology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fen Tang
- Department of Breast Surgery, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qian Guo
- Department of Molecular Biology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiwen Liu
- Department of Molecular Biology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiqing He
- Department of Molecular Biology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Du
- Department of Molecular Biology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Gao
- Department of Clinical Laboratory, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Molecular Biology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guoliang Zhang
- Department of Clinical Laboratory, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Molecular Biology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Cuixia Yang
- Department of Clinical Laboratory, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Molecular Biology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Clark ZL, Ruebel ML, Schall PZ, Karl KR, Ireland JJ, Latham KE. Follicular Hyperstimulation Dysgenesis: New Explanation for Adverse Effects of Excessive FSH in Ovarian Stimulation. Endocrinology 2022; 163:bqac100. [PMID: 35833461 PMCID: PMC9342683 DOI: 10.1210/endocr/bqac100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Indexed: 11/19/2022]
Abstract
High follicle-stimulating hormone (FSH) doses during ovarian stimulation protocols for assisted reproductive technologies (ART) are detrimental to ovulatory follicle function and oocyte quality. However, the mechanisms are unclear. In a small ovarian reserve heifer model, excessive FSH doses lead to phenotypic heterogeneity of ovulatory size follicles, with most follicles displaying signs of premature luteinization and a range in severity of abnormalities. By performing whole transcriptome analyses of granulosa cells, cumulus cells, and oocytes from individual follicles of animals given standard or excessive FSH doses, we identified progressive changes in the transcriptomes of the 3 cell types, with increasing severity of follicular abnormality with the excessive doses. The granulosa and cumulus cells each diverged progressively from their normal phenotypes and became highly similar to each other in the more severely affected follicles. Pathway analysis indicates a possible dysregulation of the final stages of folliculogenesis, with processes characteristic of ovulation and luteinization occurring concurrently rather than sequentially in the most severely affected follicles. These changes were associated with disruptions in key pathways in granulosa and cumulus cells, which may account for previously reported reduced estradiol production, enhanced progesterone and oxytocin production and diminished ovulation rates. Predicted deficiencies in oocyte survival, stress response, and fertilization suggest likely reductions in oocyte health, which could further compromise oocyte quality and ART outcomes.
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Affiliation(s)
- Zaramasina L Clark
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Meghan L Ruebel
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
- USDA-ARS Arkansas Children’s Nutrition Center 15 Children’s Way Little Rock, AR 72202, USA
| | - Peter Z Schall
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
- University of Michigan Medical School, Department of Human Genetics, Ann Arbor, Michigan, USA
| | - Kaitlin R Karl
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
| | - James J Ireland
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
| | - Keith E Latham
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
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11
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Kanke T, Fujii W, Naito K, Sugiura K. Effect of fibroblast growth factor signaling on cumulus expansion in mice in vitro. Mol Reprod Dev 2022; 89:281-289. [PMID: 35678749 DOI: 10.1002/mrd.23616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 04/23/2022] [Accepted: 05/25/2022] [Indexed: 11/07/2022]
Abstract
The expansion of cumulus cells associated with oocytes is an essential phenomenon in normal mammalian ovulation. Indeed, attenuated expression of cumulus expansion-related genes, including Has2, Ptgs2, Ptx3, and Tnfaip6, results in ovulation failure, leading to female subfertility or infertility. Moreover, emerging evidence suggests that proteins of the fibroblast growth factor (FGF) family, produced within ovarian follicles, regulate the development and function of cumulus cells; however, the effects of FGF signaling on cumulus expansion have not been investigated extensively. Herein, we investigate the effects of FGF signaling, particularly those of FGF8 secreted by oocytes, on epidermal growth factor-induced cumulus expansion in mice. The phosphorylation level of MAPK3/1, an intracellular mediator of FGF signaling, was significantly decreased in cumulus-oocyte complexes (COCs) following treatment with NVP-BGJ398, an FGF receptor inhibitor. Moreover, even though NVP-BGJ398 treatment did not affect cumulus cell expansion, it significantly upregulated the expression of Ptgs2 and Ptx3. In contrast, treatment with recombinant FGF8 did not affect the degree of cumulus expansion or the expression of expansion-related genes in COCs or oocytectomized cumulus cell complexes. Collectively, these results suggest that FGFs, other than FGF8, exert suppressive effects on the cumulus expansion process in mice.
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Affiliation(s)
- Takuya Kanke
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Wataru Fujii
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kunihiko Naito
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Koji Sugiura
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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12
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Herta AC, Mengden L, Akin N, Billooye K, Coucke W, Leersum J, Cava-Cami B, Saucedo-Cuevas L, Klamt F, Smitz J, Anckaert E. Characterization of carbohydrate metabolism in in vivo and in vitro grown and matured mouse antral follicles. Biol Reprod 2022; 107:998-1013. [PMID: 35717588 DOI: 10.1093/biolre/ioac124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 02/14/2022] [Accepted: 06/12/2022] [Indexed: 11/13/2022] Open
Abstract
Establishing an ideal human follicle culture system for oncofertility patients relies mainly on animal models since donor tissue is scarce and often of suboptimal quality. The in vitro system developed in our laboratory supports the growth of prepubertal mouse secondary follicles up to mature oocytes. Given the importance of glucose in preparing the oocyte for proper maturation, a baseline characterization of follicle metabolism both in the culture system and in vivo was carried out. Markers of glucose-related pathways (glycolysis, tricarboxylic acid (TCA) cycle, pentose phosphate pathway (PPP), polyol pathway, hexosamine biosynthesis pathway (HBP)) as well as for the antioxidant capacity were measured in the different follicle cell types by both enzymatic activities (spectrophotometric detection) and gene expression (qPCR). This study confirmed that in vivo the somatic cells, mainly granulosa, exhibit intense glycolytic activity, while oocytes perform PPP. Throughout the final maturation step, oocytes in vivo and in vitro showed steady levels for all the key enzymes and metabolites. On the other hand, ovulation triggers a boost of pyruvate and lactate uptake in cumulus cells in vivo, consumes reduced nicotinamide adenine dinucleotide phosphate (NADPH) and increases TCA cycle and small molecules antioxidant capacity (SMAC) activities, while in vitro, the metabolic upregulation in all the studied pathways is limited. This altered metabolic pattern might be a consequence of cell exhaustion because of culture conditions, impeding cumulus cells to fulfil their role in providing proper support for acquiring oocyte competence. SUMMARY SENTENCE: In vitro cultured mouse follicles exhibit altered glycolytic activity and redox metabolism in the somatic compartment during meiotic maturation.
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Affiliation(s)
- Anamaria-Cristina Herta
- Follicle Biology Laboratory (FOBI), Vrije Universiteit Brussel (VUB), Brussels, 1090, Belgium
| | - Lucia Mengden
- Laboratory of Cellular Biochemistry, Department of Biochemistry, ICBS, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre (RS), 90035003, Brazil
| | - Nazli Akin
- Follicle Biology Laboratory (FOBI), Vrije Universiteit Brussel (VUB), Brussels, 1090, Belgium
| | - Katy Billooye
- Follicle Biology Laboratory (FOBI), Vrije Universiteit Brussel (VUB), Brussels, 1090, Belgium
| | - Wim Coucke
- Freelance statistician, Brugstraat 107, 3001 Heverlee, Belgium
| | - Julia Leersum
- Follicle Biology Laboratory (FOBI), Vrije Universiteit Brussel (VUB), Brussels, 1090, Belgium
| | - Berta Cava-Cami
- Follicle Biology Laboratory (FOBI), Vrije Universiteit Brussel (VUB), Brussels, 1090, Belgium
| | - Laura Saucedo-Cuevas
- Follicle Biology Laboratory (FOBI), Vrije Universiteit Brussel (VUB), Brussels, 1090, Belgium
| | - Fábio Klamt
- Laboratory of Cellular Biochemistry, Department of Biochemistry, ICBS, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre (RS), 90035003, Brazil
| | - Johan Smitz
- Follicle Biology Laboratory (FOBI), Vrije Universiteit Brussel (VUB), Brussels, 1090, Belgium
| | - Ellen Anckaert
- Follicle Biology Laboratory (FOBI), Vrije Universiteit Brussel (VUB), Brussels, 1090, Belgium
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13
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Shao T, Ke H, Liu R, Xu L, Han S, Zhang X, Dang Y, Jiao X, Li W, Chen ZJ, Qin Y, Zhao S. Autophagy regulates differentiation of ovarian granulosa cells through degradation of WT1. Autophagy 2022; 18:1864-1878. [PMID: 35025698 PMCID: PMC9450966 DOI: 10.1080/15548627.2021.2005415] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Ovarian granulosa cells (GCs) proliferate and differentiate along with follicular growth, and this is indispensable for oocyte development and female fertility. Although the role of macroautophagy/autophagy in ovarian function has been reported, its contribution to the regulation of GC characteristics remains elusive. The siRNA-mediated knockdown of two key autophagy-related genes ATG5 and BECN1 and the autophagy inhibitor chloroquine were used to interfere with autophagy in GCs. Inhibition of autophagy both genetically and pharmacologically resulted in decreased expression of genes associated with GC differentiation, including CYP19A1/Aromatase and FSHR, as well as in reduced estradiol synthesis. Mechanistically, when autophagy was disrupted, the transcription factor WT1 accumulated in GCs due to its insufficient degradation by the autophagic pathway, and this inhibited GC differentiation. Finally, decreased expression of several autophagy-related genes, as well as reduced LC3-II:LC3-I and elevated SQSTM1/p62 protein levels, which are indications of decreased autophagy, were detected in GCs from biochemical premature ovarian insufficiency patients. In summary, our study reveals that autophagy regulates the differentiation of ovarian GCs by degrading WT1 and that insufficient autophagy might be involved in ovarian dysfunction.
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Affiliation(s)
- Tong Shao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Hanni Ke
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Ran Liu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Lan Xu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Shuang Han
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Xiruo Zhang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Yujie Dang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Xue Jiao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Wei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China.,Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yingying Qin
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
| | - Shidou Zhao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.,Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, China.,Shandong Key Laboratory of Reproductive Medicine, Jinan, Shandong, China.,Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, China
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14
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EMORI C, KANKE T, ITO H, AKIMOTO Y, FUJII W, NAITO K, SUGIURA K. Expression and regulation of estrogen receptor 2 and its coregulators in mouse granulosa cells. J Reprod Dev 2022; 68:137-143. [PMID: 35046244 PMCID: PMC8979806 DOI: 10.1262/jrd.2021-114] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The cooperative effects of estrogen and oocyte-derived paracrine factors (ODPFs) play critical roles in the normal development of ovarian follicles; however, the mechanism underlying this
cooperation has not been well studied. The present study aimed to determine whether ODPFs affect estrogen signaling by regulating the expression of estrogen receptor (ESR) and its
coregulators in mouse granulosa cells. Some transcripts encoding ESR coregulators were differentially expressed between cumulus and mural granulosa cells (MGCs). The transcript levels of ESR
coregulators, including nuclear receptor corepressor 1 and activator 2, in cumulus cells were significantly suppressed by ODPFs; however, they increased when cumulus cell-oocyte complexes
were treated with the transforming growth factor beta receptor I inhibitor, SB431542. Moreover, MGCs exhibited significantly higher ESR2 protein and transcript levels than those in cumulus
cells. ODPFs promoted Esr2 expression in cumulus cells but had no effect on that in MGCs. Overall, regulation of the expression of ESR2 and its coregulators in cumulus cells
by oocytes seems to be one of the mechanisms underlying estrogen-oocyte cooperation in well-developed antral follicles in mice.
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Affiliation(s)
- Chihiro EMORI
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Takuya KANKE
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Haruka ITO
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Yuki AKIMOTO
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Wataru FUJII
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Kunihiko NAITO
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Koji SUGIURA
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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15
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Ferranti EM, Aloqaily BH, Gifford CA, Forrest KK, Löest CA, Wenzel JC, Gifford JAH. Effects of lipopolysaccharide on beta-catenin, aromatase, and estrogen production in bovine granulosa cells in vivo and in vitro. Domest Anim Endocrinol 2022; 78:106652. [PMID: 34428611 DOI: 10.1016/j.domaniend.2021.106652] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 07/24/2021] [Accepted: 07/26/2021] [Indexed: 01/31/2023]
Abstract
Diseases resulting from Gram-negative bacterial infection can induce an immune response by releasing a lipopolysaccharide (LPS) endotoxin that may lead to impaired fertility in cows. To evaluate the effects of LPS on follicular dynamics in a subacute inflammatory disease state, 14 Angus heifers (BW = 413 kg±14) were blocked by weight and assigned to vehicle (n = 7) or LPS treated (n = 7) groups. Heifers received subcutaneous injections of saline (CON) or 2.0 μg/kg LPS on d 2, 5, and 8 of a select synch plus controlled internal drug release device (CIDR) follicular wave synchronization protocol. Fifty hours following CIDR withdrawal, ovaries were harvested, and follicular fluid was collected for hormone and LPS analysis. Daily blood samples were collected from d 0 to d 7. Beginning on d 8 blood samples were collected at 0, 16, 24, 32, 40, and 50 h following LPS challenge. Rectal temperatures were recorded prior to treatment and at regular intervals after each LPS challenge. Heifers treated with LPS exhibited mild (+0.5 °C) hyperthermia (P < 0.05) at 3, 4, and 8 h after the initial LPS challenge (d 2) when compared to vehicle-treated controls. Follicular fluid concentrations of estradiol (E2) increased (P = 0.04) in LPS-treated heifers compared to controls (1,595 ng/mL and 808 ng/mL±240, respectively), while follicular fluid progesterone (P4) concentrations did not differ (P = 0.27) between treatment groups. Additionally, LPS concentrations tended to be increased (P = 0.59) in dominant follicles of LPS-treated heifers, but no difference was detected (P = 0.81) in small developing follicles. To further delineate the impact of LPS on ovarian signaling pathways, a granulosa cell line (KGN) was incubated in the presence or absence of LPS (10 μg/mL) for 48 h. Cells were then collected for gene expression and protein analysis. Cells in both treatment groups expressed toll-like receptor 4, myeloid differentiation factor-2 receptor, and CD-14 complex genes required for LPS signaling. Cells treated with LPS exhibited decreased mRNA expression of aromatase (P = 0.03) and beta-catenin (P = 0.02). However, no change (P > 0.10) was detected in abundance of total beta-catenin protein or beta-catenin phosphorylated isoforms at serine 552 or 675. Based on results from this in vivo experiment, these investigators concluded that low doses of LPS can alter E2 concentrations and this effect may be modulated in part through beta-catenin regulation of aromatase transcription.
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Affiliation(s)
- E M Ferranti
- Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - B H Aloqaily
- Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - C A Gifford
- Extension Animal Sciences and Natural Resources, New Mexico State University, Las Cruces, NM 88003, USA
| | - K K Forrest
- Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - C A Löest
- Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM 88003, USA
| | - J C Wenzel
- Extension Animal Sciences and Natural Resources, New Mexico State University, Las Cruces, NM 88003, USA
| | - J A Hernandez Gifford
- Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM 88003, USA.
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16
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Robert C. Nurturing the egg: the essential connection between cumulus cells and the oocyte. Reprod Fertil Dev 2021; 34:149-159. [PMID: 35231386 DOI: 10.1071/rd21282] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The determinants of oocyte quality remain uncertain. Under suitable conditions, which have yet to be defined, the gamete grows and acquires the competence to resume meiosis, be fertilised and undergo embryonic development at least beyond genome activation, after which the blastomere is autonomous enough to adapt to the specificity of its environment. This review describes the central role played by the oocyte in reproductive success and how communication between cumulus cells and the oocyte are essential to proper oogenesis and the quality of the resulting gamete. While most attempts to improve oocyte quality have been directed at gonadotrophin-based systemic endocrine signalling, it is proposed that parallel control of fertility may act locally within ovarian follicles through intimate cooperation between somatic cells and the oocyte via the network of transzonal projections. This intercellular communication may prove to be more sensitive to environmental conditions than systemic endocrine signalling, which is essential for many non-reproductive tissues.
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Affiliation(s)
- Claude Robert
- Département des sciences animales, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, Québec, QC, Canada
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17
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Rasheed ST, Younis LS, Aboud QM. Association between Bovine GDF9 SNPs and Calving Rate (Superovulation) in Holstein-Friesian Cows. ARCHIVES OF RAZI INSTITUTE 2021; 76:1035-1045. [PMID: 35096339 PMCID: PMC8790963 DOI: 10.22092/ari.2021.354310.1632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 05/29/2021] [Indexed: 01/24/2023]
Abstract
The present study aimed to assess the relationship of Growth Differentiation Factor 9 (GDF9) genotypes with calving rate, Follicle-stimulating hormone (FSH), and Estradiol (E2) in the Iraqi Holstein-Friesian breed. A number of 15 blood samples were collected from a mother of dizygotic twin birth (DZTB) (with high calving rate records), and another blood sample was collected from 15 single birth (SB) cows. The DNA was extracted and six primers were designed for PCR and sequencing analysis. The FSH and E2 levels were tested through the estrus phase for the two groups (n=10 in each group). The sequence evaluation revealed the presence of two single nucleotide polymorphisms (SNPs) in exon II: A (1109) T and G (1133) A. The genotypic frequency for mutant genotypes was higher significantly (P<0.01) in DZTB cows (with calving rate), as compared to wild genotypes at the same loci. On the other hand, the wild genotypes recorded a significant increment (P<0.01) for SB cows, when compared to mutant genotypes in the same loci. Moreover, a significant rise (P<0.05) was reported in E2 and FSH levels for DZTB cows and mutant genotypes (P<0.01) against SB cows and wild genotypes in 0 and 24 h of estrus phase, respectively. Furthermore, non-significant differences were recorded in E2 concentration among the same genotypes at the same period. In conclusion, the GDF9 exon II SNPs increased the calving rate in Holstein-Friesian cows. The blood FSH and E2 concentrations were higher in the DZTB cows and control the superovulation. Finally, these SNPs can be regarded as markers to accelerate the breeding programs and used in embryo transfer and in vitro embryo production for Iraqi Holstein-Friesian cow breed.
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Affiliation(s)
- S. T Rasheed
- Veterinary College, Tikrit University, Tikrit, Iraq
| | - L. S Younis
- Veterinary College, Fallujah University, Baghdad, Iraq
| | - Q. M Aboud
- Veterinary College, Fallujah University, Baghdad, Iraq
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18
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Maksura H, Akon N, Islam MN, Akter I, Modak AK, Khatun A, Alam MH, Hashem MA, Amin MR, Moniruzzaman M. Effects of estradiol on in vitro maturation of buffalo and goat oocytes. Reprod Med Biol 2021; 20:62-70. [PMID: 33488284 PMCID: PMC7812509 DOI: 10.1002/rmb2.12350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 08/17/2020] [Accepted: 08/30/2020] [Indexed: 12/29/2022] Open
Abstract
PURPOSE The effects of estradiol on oocyte development seem to be varied among species. The present study investigated the effects of 17β-estradiol on in vitro maturation of buffalo and goat oocytes. METHODS Cumulus oocyte complexes (COCs) were aspirated from large antral follicles of slaughtered buffalo and goat ovaries. COCs were cultured in TCM-199 medium supplemented with 0, 0.5, 1, and 1.5 µg/mL of 17β-estradiol for in vitro maturation. Then, oocytes were used for the examination of state of nuclear maturation and cumulus expansion. RESULTS In both species, oocytes treated with 17β-estradiol showed higher cumulus expansion rate than control (0 µg/mL treated). In buffalo, the percentage of oocytes matured to the metaphase II (MII) stage increased in the concentration-dependent manner of 17β-estradiol. Similarly, estradiol positively influenced nuclear maturation of goat oocytes in vitro. CONCLUSIONS Estradiol has promoting effects on normalprogress of in vitro oocyte meiosis in buffalos and goats.
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Affiliation(s)
- Hurum Maksura
- Department of Animal ScienceBangladesh Agricultural UniversityMymensinghBangladesh
| | - Narsisa Akon
- Department of Animal ScienceBangladesh Agricultural UniversityMymensinghBangladesh
| | - Md Nuronnabi Islam
- Department of Animal ScienceBangladesh Agricultural UniversityMymensinghBangladesh
| | - Ireen Akter
- Department of Animal ScienceBangladesh Agricultural UniversityMymensinghBangladesh
| | - Avijit Kumar Modak
- Department of Animal ScienceBangladesh Agricultural UniversityMymensinghBangladesh
| | - Asma Khatun
- Department of Animal ScienceBangladesh Agricultural UniversityMymensinghBangladesh
| | - Md Hasanur Alam
- Department of Animal ScienceBangladesh Agricultural UniversityMymensinghBangladesh
| | - Md Abul Hashem
- Department of Animal ScienceBangladesh Agricultural UniversityMymensinghBangladesh
| | - Md Ruhul Amin
- Department of Animal ScienceBangladesh Agricultural UniversityMymensinghBangladesh
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19
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Hughes CHK, Murphy BD. Nuclear receptors: Key regulators of somatic cell functions in the ovulatory process. Mol Aspects Med 2020; 78:100937. [PMID: 33288229 DOI: 10.1016/j.mam.2020.100937] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/23/2020] [Accepted: 11/26/2020] [Indexed: 12/30/2022]
Abstract
The development of the ovarian follicle to its culmination by ovulation is an essential element of fertility. The final stages of ovarian follicular growth are characterized by granulosa cell proliferation and differentiation, and steroid synthesis under the influence of follicle-stimulating hormone (FSH). The result is a population of granulosa cells poised to respond to the ovulatory surge of luteinizing hormone (LH). Members of the nuclear receptor superfamily of transcription factors play indispensable roles in the regulation of these events. The key regulators of the final stages of follicular growth that precede ovulation from this family include the estrogen receptor beta (ESR2) and the androgen receptor (AR), with additional roles for others, including steroidogenic factor-1 (SF-1) and liver receptor homolog-1 (LRH-1). Following the LH surge, the mural and cumulus granulosa cells undergo rapid changes that result in expansion of the cumulus layer, and a shift in ovarian steroid hormone biosynthesis from estradiol to progesterone production. The nuclear receptor best associated with these events is LRH-1. Inadequate cumulus expansion is also observed in the absence of AR and ESR2, but not the progesterone receptor (PGR). The terminal stages of ovulation are regulated by PGR, which increases the abundance of the proteases that are directly responsible for rupture. It further regulates the prostaglandins and cytokines associated with the inflammatory-like characteristics of ovulation. LRH-1 regulates PGR, and is also a key regulator of steroidogenesis, cellular proliferation, and cellular migration, and cytoskeletal remodeling. In summary, nuclear receptors are among the panoply of transcriptional regulators with roles in ovulation, and several are necessary for normal ovarian function.
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Affiliation(s)
- Camilla H K Hughes
- Centre de Recherche en Reproduction et Fertilité, Université de Montréal, St-Hyacinthe, Qc, J2S 2M2, Canada
| | - Bruce D Murphy
- Centre de Recherche en Reproduction et Fertilité, Université de Montréal, St-Hyacinthe, Qc, J2S 2M2, Canada.
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20
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Zhang H, Lu S, Xu R, Tang Y, Liu J, Li C, Wei J, Yao R, Zhao X, Wei Q, Ma B. Mechanisms of Estradiol-induced EGF-like Factor Expression and Oocyte Maturation via G Protein-coupled Estrogen Receptor. Endocrinology 2020; 161:5929646. [PMID: 33068422 DOI: 10.1210/endocr/bqaa190] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Indexed: 12/18/2022]
Abstract
Estrogen is an important modulator of reproductive activity through nuclear receptors and G protein-coupled estrogen receptor (GPER). Here, we observed that both estradiol and the GPER-specific agonist G1 rapidly induced cyclic adenosine monophosphate (cAMP) production in cumulus cells, leading to transient stimulation of phosphorylated cAMP response element binding protein (CREB), which was conducive to the transcription of epidermal growth factor (EGF)-like factors, amphiregulin, epiregulin, and betacellulin. Inhibition of GPER by G15 significantly reduced estradiol-induced CREB phosphorylation and EGF-like factor gene expression. Consistently, the silencing of GPER expression in cultured cumulus cells abrogated the estradiol-induced CREB phosphorylation and EGF-like factor transcription. In addition, the increase in EGF-like factor expression in the cumulus cells is associated with EGF receptor (EFGR) tyrosine kinase phosphorylation and extracellular signal-regulated kinase 1/2 (ERK1/2) activation. Furthermore, we demonstrated that GPER-mediated phosphorylation of EGFR and ERK1/2 was involved in reduced gap junction communication, cumulus expansion, increased oocyte mitochondrial activity and first polar body extrusion. Overall, our study identified a novel function for estrogen in regulating EGFR activation via GPER in cumulus cells during oocyte maturation.
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Affiliation(s)
- Hui Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Sihai Lu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Rui Xu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Yaju Tang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Jie Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Chan Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Juncai Wei
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Ru Yao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Xiaoe Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Qiang Wei
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
| | - Baohua Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
- Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling, Shaanxi, People's Republic of China
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21
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Liu J, Yao R, Lu S, Xu R, Zhang H, Wei J, Zhao C, Tang Y, Li C, Liu H, Zhao X, Wei Q, Ma B. Synergistic effect between LH and estrogen in the acceleration of cumulus expansion via GPR30 and EGFR pathways. Aging (Albany NY) 2020; 12:20801-20816. [PMID: 33113510 PMCID: PMC7655205 DOI: 10.18632/aging.104029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 07/25/2020] [Indexed: 12/15/2022]
Abstract
The estrogen membrane receptor GPR30 (also known as G-protein coupled receptor 30) has recently been shown to be involved in the regulation of oocyte maturation and cumulus expansion. However, whether GPR30 expression is regulated by gonadotropin stimulation and how it participates in the regulation of the maturation process is still not clear. In this study, we explored the mechanism underlying the synergy between luteinizing hormone and 17β-estradiol (17β-E2) to improve the epidermal growth factor (EGF) response in cumulus oocyte complexes (COCs) during oocyte maturation in mice. The expression and distribution of GPR30, EGFR, and EGF-like growth factors were examined by real-time quantitative PCR, western blot, and immunofluorescence staining. Lyso-Tracker Red labeling was performed to detect the lysosomal activity in follicle granular cells (FGCs). Cumulus expansion of COCs was evaluated after in vitro maturation for 16 h. We found that EGF-like growth factors transmit LH signals to increase GRP30 levels by inhibiting protein degradation in lysosomes. Meanwhile, 17β-E2 stimulates the GPR30 signaling pathway to increase EGF receptor levels, enhancing the response ability of EGF signaling in COCs and thus promoting cumulus expansion. In conclusion, our study reveals the synergistic mechanism between LH and estrogen in the regulation of cumulus expansion during oocyte maturation process.
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Affiliation(s)
- Jie Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Ru Yao
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Sihai Lu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Rui Xu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Hui Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Juncai Wei
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Chunrui Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Yaju Tang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Chan Li
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Haokun Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Xiaoe Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Qiang Wei
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Baohua Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100 Shaanxi, China.,Key Laboratory of Animal Biotechnology, Ministry of Agriculture, Yangling 712100, Shaanxi, China
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22
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Turhan A, Pereira MT, Schuler G, Bleul U, Kowalewski MP. Hypoxia-inducible factor (HIF1alpha) inhibition modulates cumulus cell function and affects bovine oocyte maturation in vitro†. Biol Reprod 2020; 104:479-491. [PMID: 33095229 PMCID: PMC7876663 DOI: 10.1093/biolre/ioaa196] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/04/2020] [Accepted: 08/26/2020] [Indexed: 12/16/2022] Open
Abstract
Various metabolic and hormonal factors expressed in cumulus cells are positively correlated with the in vitro maturation (IVM) of oocytes. However, the role of hypoxia sensing both during maturation of cumulus–oocyte complexes (COCs) as well as during the resumption of meiosis remains uncertain. HIF1alpha plays major roles in cellular responses to hypoxia, and here we investigated its role during bovine COC maturation by assessing the expression of related genes in cumulus cells. COCs were divided into the following groups: immature (control), in vitro matured (IVM/control), or matured in the presence of a blocker of HIF1alpha activity (echinomycin, IVM/E). We found an inhibition of cumulus cell expansion in IVM/E, compared with the IVM/control. Transcript levels of several factors (n = 13) were assessed in cumulus cells. Decreased expression of HAS2, TNFAIP6, TMSB4, TMSB10, GATM, GLUT1, CX43, COX2, PTGES, and STAR was found in IVM/E (P < 0.05). Additionally, decreased protein levels were detected for STAR, HAS2, and PCNA (P < 0.05), while activated-Caspase 3 remained unaffected in IVM/E. Progesterone output decreased in IVM/E. The application of PX-478, another blocker of HIF1alpha expression, yielded identical results. Negative effects of HIF1alpha suppression were further observed in the significantly decreased oocyte maturation and blastocyst rates from COCs matured with echinomycin (P < 0.05) or PX-478 (P < 0.05). These results support the importance of HIF1alpha for COC maturation and subsequent embryo development. HIF1alpha is a multidirectional factor controlling intercellular communication within COCs, steroidogenic activity, and oocyte development rates, and exerting effects on blastocyst rates.
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Affiliation(s)
- Aslihan Turhan
- Vetsuisse Faculty, Institute of Veterinary Anatomy, University of Zurich (UZH), Zurich, Switzerland.,Department of Farm Animals, Clinic of Reproductive Medicine, Vetsuisse Faculty University of Zurich, Zurich, Switzerland
| | - Miguel Tavares Pereira
- Vetsuisse Faculty, Institute of Veterinary Anatomy, University of Zurich (UZH), Zurich, Switzerland
| | - Gerhard Schuler
- Clinic for Obstetrics, Gynecology and Andrology of Large and Small Animals, Justus-Liebig-University, Giessen, Germany
| | - Ulrich Bleul
- Department of Farm Animals, Clinic of Reproductive Medicine, Vetsuisse Faculty University of Zurich, Zurich, Switzerland
| | - Mariusz P Kowalewski
- Vetsuisse Faculty, Institute of Veterinary Anatomy, University of Zurich (UZH), Zurich, Switzerland
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23
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Matsuno Y, Maruyama N, Fujii W, Naito K, Sugiura K. Effects of oocyte-derived paracrine factors on release of extracellular vesicles by murine mural granulosa cells in vitro. Anim Sci J 2020; 91:e13385. [PMID: 32515535 PMCID: PMC7378952 DOI: 10.1111/asj.13385] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 04/20/2020] [Accepted: 04/27/2020] [Indexed: 12/27/2022]
Abstract
Both oocytes and extracellular vesicles (EV) have emerged as critical regulators of mammalian follicular development; however, the possible interaction between the oocyte‐derived paracrine factor (ODPF) and EV signals has never been examined. Therefore, to explore the possibility of an interaction between oocyte and EV signals, the effects of ODPFs on the biogenesis of EVs as well as the expression levels of transcripts related to EV biogenesis in mural granulosa cells (MGCs) were examined using mice. The results showed that, while oocyte coculture has some effects on the expression levels of transcripts related to EV biogenesis, the number of EV particles present in the conditioned medium were not significantly different between ODPF‐treated and non‐treated MGCs. Therefore, oocytes have no effects on the EV biogenesis by MGCs, at least with respect to the numbers of EV particles.
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Affiliation(s)
- Yuta Matsuno
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Natsumi Maruyama
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Wataru Fujii
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kunihiko Naito
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Koji Sugiura
- Laboratory of Applied Genetics, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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24
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Yu H, Wang Y, Wang M, Liu Y, Cheng J, Zhang Q. Growth differentiation factor 9 (gdf9) and bone morphogenetic protein 15 (bmp15) are potential intraovarian regulators of steroidogenesis in Japanese flounder (Paralichthys olivaceus). Gen Comp Endocrinol 2020; 297:113547. [PMID: 32659273 DOI: 10.1016/j.ygcen.2020.113547] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 04/11/2020] [Accepted: 07/07/2020] [Indexed: 11/20/2022]
Abstract
Members of transforming growth factor-β (TGF-β) superfamily are vital regulators during the development of fish ovary. However, its intraovarian functions in teleost are still unclear. As members of the TGF-β superfamily, gdf9 and bmp15 are necessary for follicle formation and granulosa cell proliferation. Here in Japanese flounder, quantitative real-time polymerase chain reaction (qRT-PCR) and in situ hybridization (ISH) analysis showed that gdf9 and bmp15 were mainly expressed in oogonia and oocytes, whereas weakly expressed in non-ovarian tissues. Overexpression of single gdf9 and the co-overexpression with bmp15 could up-regulate the expression of most steroidogenic genes, while the overexpression of single bmp15 could down-regulate the expression of most steroidogenic genes. These findings demonstrate that single gdf9 and the combination with bmp15 may act as "activator", while single bmp15 may act as "inhibitor" in the process of steroidogenesis in flounder. This was also verified in negative feedback regulation of gdf9 and bmp15 during hormone treatment. High concentration of human chorionic gonadotropin (hCG) could down-regulate gdf9 and up-regulate bmp15, which were beneficial for the homeostasis of hCG hormone. Besides, knockdown of either gdf9 or bmp15 could significantly down-regulate most steroidogenic genes. This indicated that heterodimer of GDF9:BMP15 might be the most bioactive ligand in gonad development of flounder. Taken together, our study provided a novel recognition that gdf9 and bmp15 could regulate steroidogenesis in teleost through mechanism different from that in mammals.
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Affiliation(s)
- Haiyang Yu
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, 266003 Qingdao, Shandong, China
| | - Yujue Wang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, 266003 Qingdao, Shandong, China
| | - Mengya Wang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, 266003 Qingdao, Shandong, China
| | - Yuxiang Liu
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, 266003 Qingdao, Shandong, China
| | - Jie Cheng
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, 266003 Qingdao, Shandong, China
| | - Quanqi Zhang
- Key Laboratory of Marine Genetics and Breeding, Ministry of Education, College of Marine Life Sciences, Ocean University of China, 266003 Qingdao, Shandong, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 266237 Qingdao, Shandong, China.
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25
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Pan Y, Wang M, Wang L, Zhang Q, Baloch AR, He H, Xu G, Soomro J, Cui Y, Yu S. Estrogen improves the development of yak (Bos grunniens) oocytes by targeting cumulus expansion and levels of oocyte-secreted factors during in vitro maturation. PLoS One 2020; 15:e0239151. [PMID: 32941516 PMCID: PMC7498018 DOI: 10.1371/journal.pone.0239151] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 08/31/2020] [Indexed: 12/12/2022] Open
Abstract
The estrogen-signalling pathway is critical for normal follicular development; however, little is known about its importance during in vitro maturation (IVM) in large animals, particularly yaks (Bos grunniens). Through the present study, we aimed to determine the mechanisms underlying estrogen involvement in cumulus expansion and the subsequent development of cumulus-oocyte complexes (COCs). COCs were cultured in the maturation medium supplemented with different concentrations (10−6–10−3 mM) of 17β-estradiol (E2) or its receptor antagonist, fulvestrant, and quantitative reverse-transcription polymerase chain reaction (qRT-PCR) and western blot were performed to determine the expression of cumulus-expansion related factors and oocyte-secreted factors (OSFs). The cumulus expansion of COCs was observed using an inverted microscope, and COCs developmental ability were judged by the evaluation of cleavage and blastulation rates per inseminated oocytes by IVF, and the number of cells in the blastocyst. Cumulus expansion increased with 10−6–10−3 mM E2, but decreased with fulvestrant. HAS2, PTGS2, PTX3 and OSFs expression increased in the 10−6–10−3 mM E2 groups. Significantly higher cleavage and blastocyst rates were observed in the 10−4 mM E2 group than in the fulvestrant and 0 mM E2 groups. Moreover, in the 10−4 mM group, blastocysts at 7 days had higher cell counts than the other groups. In conclusion, the increase in cumulus expansion and subsequent oocyte development after the addition of E2 to IVM medium may have resulted from increased cumulus-expansion-related factor expression and OSF levels.
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Affiliation(s)
- Yangyang Pan
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Meng Wang
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Libin Wang
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Qian Zhang
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Abdul Rasheed Baloch
- National Center for International Research in Cell and Gene Therapy, Sino-British Research Centre for Molecular Oncology, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Honghong He
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Gengquan Xu
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Jamila Soomro
- Department of Veterinary Physiology and Biochemistry, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam, Pakistan
| | - Yan Cui
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Sijiu Yu
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- * E-mail:
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26
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Yan T, Zhang S, Zhang Q, Deng F, Cai Y, He J, Ma Z, He L, Luo J, Yang D, He Z. Expression patterns and oestradiol regulation of growth differentiation factor 9 in Schizothorax prenanti. Comp Biochem Physiol B Biochem Mol Biol 2020; 248-249:110470. [PMID: 32653508 DOI: 10.1016/j.cbpb.2020.110470] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 05/30/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
Abstract
Growth differentiation factor 9 (GDF9) plays pivotal roles in regulating follicular development in many mammalian species. In the present study, the full-length Schizothorax prenanti gdf9 cDNA sequence was isolated and characterized, and its expression pattern in developing gonads and in the gonads of exogenous oestradiol (E2)-fed fish were analysed. The S. prenanti gdf9 cDNA sequence consisted of 1958 base pairs (bp), encoded a 413 amino acid, and showed high sequence similarity with Carassius gibelio and Cyprinus carpio. The quantitative real-time PCR analysis revealed that gdf9 was mainly expressed in the gonads, with particularly high expression in the cortical alveoli stage ovary and late-spermatogenic stage testis. Immunohistochemical signals for Gdf9 were mainly detected in chromatin nucleolar oocytes, spermatogonia and spermatocytes. Furthermore, the gonadal expression of gdf9 induced by exogenous E2 was related to the feeding time and dose. Taken together, these findings were helpful to gain a better understanding of the role of Gdf9 in both folliculogenesis and spermatogenesis in S. prenanti.
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Affiliation(s)
- Taiming Yan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Songpei Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Qian Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Faqiang Deng
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Yueping Cai
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Jiayang He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhijun Ma
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Liang He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Jie Luo
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Deying Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhi He
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China.
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27
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The CC-chemokine receptor 2 is involved in the control of ovarian folliculogenesis and fertility lifespan in mice. J Reprod Immunol 2020; 141:103174. [PMID: 32615332 DOI: 10.1016/j.jri.2020.103174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/05/2020] [Accepted: 06/24/2020] [Indexed: 11/24/2022]
Abstract
The chemokine receptor 2 (CCR2) was first described as a chemotactic factor involved in immune responses, but it also plays an essential function in several biological processes. The chemokine (C-C motif) ligand 2 (CCL2) binds to CCR2 triggering G protein-coupled receptor (GPCR) signaling in leukocytes, including activation of PI3K/Akt/mTOR, a key pathway that is also related to follicular activation and survival. However, the potential role of CCR2 in ovarian follicular physiology remain unexplored. Thus, we investigated the role of CCR2 on follicular growth during adult life and aging. Ovaries and oocytes were collected from wild type (WT) mice at 1.5 months old (mo), and CCR2 expression was observed predominantly in oocytes included in growing follicles, as well as after ovulation. Follicle populations were assessed in WT and CCR2-/- mice at 1.5 mo, and CCR2-/- mice had more primordial and less primary and secondary follicles, while there were no differences in antral follicle numbers. Pro-apoptotic genes Bax and Casp3 were downregulated, while anti-apoptotic Bcl2 was upregulated in CCR2-/- mice. To further characterize the role of CCR2 in ovarian aging, follicle populations were assessed in WT and CCR2-/- mice at 1.5, 2.5, 6, 10, and 12 mo. A larger ovarian follicular reserve at 1.5-6 mo was observed in CCR2-/- mice. Finally, CCR2-/- aged mice (6-12 mo) ovulated more oocytes than WT mice. Altogether, these data suggest that CCR2 plays an important role in the regulation of murine folliculogenesis, potentially affecting the reproductive lifespan.
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28
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Bunel A, Nivet AL, Blondin P, Vigneault C, Richard FJ, Sirard MA. The effects of LH inhibition with cetrorelix on cumulus cell gene expression during the luteal phase under ovarian coasting stimulation in cattle. Domest Anim Endocrinol 2020; 72:106429. [PMID: 32320933 DOI: 10.1016/j.domaniend.2019.106429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 12/04/2019] [Accepted: 12/19/2019] [Indexed: 01/14/2023]
Abstract
Cumulus cells have an important role to play in the final preparation of the oocyte before ovulation. During the final phase of follicular differentiation, FSH levels are low and LH maintains follicular growth; however, it is not known if at that time LH has an influence on cumulus cells inside the follicle. In humans, LH is often inhibited to avoid a premature ovulatory LH surge. This procedure provides a tool to investigate the role of LH in follicular development. In this study, we investigated the impact of suppressing LH using the GnRH antagonist cetrorelix during an ovarian coasting stimulation protocol on the transcriptome of bovine cumulus cells (CC). Oocytes were collected twice from 6 dairy cows. For the first collection, the cows received FSH twice daily for 3 d, followed by FSH withdrawal for 68 h as a control protocol. For the second collection, the same stimulation protocol was used, but the cows also received, starting on day 2 of FSH stimulation, a GnRH antagonist once a day until recovery of the cumulus-oocyte complexes (COC). Half of the COC were subjected to in vitro maturation, fertilization, and culture to assess blastocyst rates. The other half of the COC underwent microarray analysis (n = 3 cows, 2 treatments, 6 oocyte collections) and qRT-PCR (n = 6 cows: 3 microarray cows +3 other cows, 2 treatments, 12 oocyte collections). The differential expression of specific genes was confirmed by RT-qPCR: decrease of ATP6AP2, SC4MOL, and OSTC and increase of PTGDS in the LH-inhibited condition. The global transcriptomic analysis of cumulus cells demonstrated that the inhibition of LH secretion may decrease survival and growth of the follicle. Moreover, the results suggested that LH may be important to cumulus for the maintenance of cellular mechanisms such as global RNA expression, protein and nucleic acid metabolism, and energy production. These results support the hypothesis that LH support is important during the final part of follicle maturation through its influence on the cumulus cells.
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Affiliation(s)
- A Bunel
- Centre de recherche en Reproduction, Développement et Santé Intergénérationnelle, Faculté des Sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Université Laval, Québec, QC G1V 0A6, Canada
| | - A L Nivet
- Centre de recherche en Reproduction, Développement et Santé Intergénérationnelle, Faculté des Sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Université Laval, Québec, QC G1V 0A6, Canada
| | - P Blondin
- L'Alliance Boviteq, Saint-Hyacinthe, QC, Canada
| | - C Vigneault
- L'Alliance Boviteq, Saint-Hyacinthe, QC, Canada
| | - F J Richard
- Centre de recherche en Reproduction, Développement et Santé Intergénérationnelle, Faculté des Sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Université Laval, Québec, QC G1V 0A6, Canada
| | - M A Sirard
- Centre de recherche en Reproduction, Développement et Santé Intergénérationnelle, Faculté des Sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Université Laval, Québec, QC G1V 0A6, Canada.
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Simon LE, Kumar TR, Duncan FE. In vitro ovarian follicle growth: a comprehensive analysis of key protocol variables†. Biol Reprod 2020; 103:455-470. [PMID: 32406908 DOI: 10.1093/biolre/ioaa073] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 05/06/2020] [Accepted: 05/12/2020] [Indexed: 12/18/2022] Open
Abstract
Folliculogenesis is a complex process that requires integration of autocrine, paracrine, and endocrine factors together with tightly regulated interactions between granulosa cells and oocytes for the growth and survival of healthy follicles. Culture of ovarian follicles is a powerful approach for investigating folliculogenesis and oogenesis in a tightly controlled environment. This method has not only enabled unprecedented insight into the fundamental biology of follicle development but also has far-reaching translational applications, including in fertility preservation for women whose ovarian follicles may be damaged by disease or its treatment or in wildlife conservation. Two- and three-dimensional follicle culture systems have been developed and are rapidly evolving. It is clear from a review of the literature on isolated follicle culture methods published over the past two decades (1980-2018) that protocols vary with respect to species examined, follicle isolation methods, culture techniques, culture media and nutrient and hormone supplementation, and experimental endpoints. Here we review the heterogeneity among these major variables of follicle culture protocols.
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Affiliation(s)
- Leah E Simon
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - T Rajendra Kumar
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.,Department of Obstetrics and Gynecology, University of Colorado, Aurora, Colorado, USA
| | - Francesca E Duncan
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
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30
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A Comparative Analysis of Oocyte Development in Mammals. Cells 2020; 9:cells9041002. [PMID: 32316494 PMCID: PMC7226043 DOI: 10.3390/cells9041002] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/06/2020] [Accepted: 04/09/2020] [Indexed: 12/11/2022] Open
Abstract
Sexual reproduction requires the fertilization of a female gamete after it has undergone optimal development. Various aspects of oocyte development and many molecular actors in this process are shared among mammals, but phylogeny and experimental data reveal species specificities. In this chapter, we will present these common and distinctive features with a focus on three points: the shaping of the oocyte transcriptome from evolutionarily conserved and rapidly evolving genes, the control of folliculogenesis and ovulation rate by oocyte-secreted Growth and Differentiation Factor 9 and Bone Morphogenetic Protein 15, and the importance of lipid metabolism.
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31
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Ramirez G, Palomino J, Aspee K, De los Reyes M. GDF-9 and BMP-15 mRNA Levels in Canine Cumulus Cells Related to Cumulus Expansion and the Maturation Process. Animals (Basel) 2020; 10:ani10030462. [PMID: 32164341 PMCID: PMC7143337 DOI: 10.3390/ani10030462] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/04/2020] [Accepted: 03/06/2020] [Indexed: 12/28/2022] Open
Abstract
Simple Summary The knowledge of physiological events associated with canine reproduction involving oocyte developmental potential is essential to increase the success of reproductive biotechnologies in this species. In mammals, the oocytes are closely surrounded by a group of cells known as the cumulus cells. Although it is not well-known how these cells interact with the oocyte to promote maturation, they may provide important answers concerning oocyte development. The competence to undergo expansion is a unique characteristic of cumulus cells which is critical for normal oocyte maturation, however, the complete expansion of these cells takes longer in canines, which has been associated with the lengthy maturation process of the oocyte. Growth Differentiation Factor 9 (GDF-9) and Bone Morphogenetic Protein 15 (BMP-15) are described as relevant players in the oocyte–cumulus cells’ regulatory mechanisms. Cumulus cells express many important genes from a very early stage, therefore, we proposed to study the gene expression of GDF-9 and BMP-15 in canine cumulus cells in relation to cumulus expansion and the maturation process. We demonstrate, for the first time, that these genes are differentially expressed in canine cumulus cells throughout the estrous cycle and that this expression is related to cumulus expansion and maturity status, suggesting specific regulation. Abstract The competence to undergo expansion is a characteristic of cumulus cells (CCs). The aim was to investigate the expression of GDF-9 and BMP-15 mRNA in canine cumulus cells in relation to cumulus expansion and meiotic development over the estrous cycle. CCs were recovered from nonmatured and in vitro-matured (IVM) dog cumulus oocyte complexes (COCs), which were obtained from antral follicles at different phases of the estrous cycle. Quantitative real-time polymerase chain reaction (q-PCR) was used to evaluate the relative abundance of GDF-9 and BMP-15 transcripts from the CCs with or without signs of expansion. The results were evaluated by ANOVA and logistic regression. The maturity of the oocyte and the expansion process affected the mRNA levels in CCs. There were differences (p < 0.05) in GDF-9 and BMP-15 gene expression in CCs isolated from nonmatured COCs when comparing the reproductive phases. Lower mRNA levels (p < 0.05) were observed in anestrus and proestrus in comparison to those in estrus and diestrus. In contrast, when comparing GDF-9 mRNA levels in IVM COCs, no differences were found among the phases of the estrous cycle in expanded and nonexpanded CCs (p < 0.05). However, the highest (p < 0.05) BMP-15 gene expression in CCs that did not undergo expansion was exhibited in anestrus and the lowest (p < 0.05) expression was observed in estrus in expanded CCs. Although the stage of the estrous cycle did not affect the second metaphase (MII )rates, the expanded CCs obtained at estrus coexisted with higher percentages of MII (p < 0.05). In conclusion, the differential expression patterns of GDF-9 and BMP-15 mRNA transcripts might be related to cumulus expansion and maturation processes, suggesting specific regulation and temporal changes in their expression.
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Qin Y, Tang T, Li W, Liu Z, Yang X, Shi X, Sun G, Liu X, Wang M, Liang X, Cong P, Mo D, Liu X, Chen Y, He Z. Bone Morphogenetic Protein 15 Knockdown Inhibits Porcine Ovarian Follicular Development and Ovulation. Front Cell Dev Biol 2019; 7:286. [PMID: 31803742 PMCID: PMC6877722 DOI: 10.3389/fcell.2019.00286] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 11/04/2019] [Indexed: 12/21/2022] Open
Abstract
Bone morphogenetic protein 15 (BMP15) is strongly associated with animal reproduction and woman reproductive disease. As a multifunctional oocyte-specific secret factor, BMP15 controls female fertility and follicular development in both species-specific and dosage-sensitive manners. Previous studies found that BMP15 played a critical role in follicular development and ovulation rate in mono-ovulatory mammalian species, especially in sheep and human, but study on knockout mouse model implied that BMP15 possibly has minimal impact on female fertility of poly-ovulatory species. However, this needs to be validated in other poly-ovulatory species. To investigate the regulatory role of BMP15 on porcine female fertility, we generated a BMP15-knockdown pig model through somatic nuclear transfer technology. The BMP15-knockdown gilts showed markedly reduced fertility accompanied by phenotype of dysplastic ovaries containing significantly declined number of follicles, increased number of abnormal follicles, and abnormally enlarged antral follicles resulting in disordered ovulation, which is remarkably different from the unchanged fertility observed in BMP15 knockout mice. Molecular and transcriptome analysis revealed that the knockdown of BMP15 significantly affected both granulosa cells (GCs) and oocytes development, including suppression of cell proliferation, differentiation, and follicle stimulating hormone receptor (Fshr) expression, leading to premature luteinization and reduced estradiol (E2) production in GCs, and simultaneously decreased quality and meiotic maturation of oocyte. Our results provide in vivo evidence of the essential role of BMP15 in porcine ovarian and follicular development, and new insight into the complicated regulatory function of BMP15 in female fertility of poly-ovulatory species.
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Affiliation(s)
- Yufeng Qin
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Tao Tang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Wei Li
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zhiguo Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiaoliang Yang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xuan Shi
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Guanjie Sun
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiaofeng Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Min Wang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xinyu Liang
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Peiqing Cong
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Delin Mo
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiaohong Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yaosheng Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zuyong He
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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Liu MN, Zhang K, Xu TM. The role of BMP15 and GDF9 in the pathogenesis of primary ovarian insufficiency. HUM FERTIL 2019; 24:325-332. [PMID: 31607184 DOI: 10.1080/14647273.2019.1672107] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Endocrine and paracrine signals can be key regulators of ovarian physiology. The oocyte secretes growth factors which directly induce follicular development by a complex paracrine signalling process, and the transforming growth factorβ (TGF-β) superfamily has a pivotal role in this process. The bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9) genes are relevant members of the TGF-β superfamily that encode proteins secreted by the oocytes into the ovarian follicles, where they contribute to creating an environment supporting follicle selection and growth. Their main functions include regulating cellular proliferation/differentiation, follicular survival/atresia, and oocyte maturation. Recent functional studies have validated genetic factors (Progesterone receptor membrane component 1 (PGRMC1)), Fragile X mental retardation 1 (FMR1, GDF9 and BMP15) as being causative of primary ovarian insufficiency (POI), BMP15/GDF9 gene variants were found to have a high incidence on the POI phenotype. This review considers the most recent research regarding the role of BMP15 and GDF9 in the genetic control of follicular development, paying special attention to the pathogenesis of POI.
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Affiliation(s)
- Meng-Na Liu
- Department of Clinical Laboratory, Jilin University Second Hospital , Changchun , China
| | - Kun Zhang
- Department of Research Center, Jilin University Second Hospital , Changchun , China
| | - Tian-Min Xu
- Department of Gynecology and Obstetrics, Jilin University Second Hospital , Changchun , China
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34
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Zhang S, Wang L, Wang L, Chen Y, Li F. miR‐17‐5p affects porcine granulosa cell growth and oestradiol synthesis by targeting
E2F1
gene. Reprod Domest Anim 2019; 54:1459-1469. [DOI: 10.1111/rda.13551] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/27/2019] [Accepted: 08/13/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Shuna Zhang
- Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture and Rural Affairs & Key Laboratory of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education Huazhong Agricultural University Wuhan China
- The Cooperative Innovation Center for Sustainable Pig Production Wuhan China
| | - Ling Wang
- Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture and Rural Affairs & Key Laboratory of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education Huazhong Agricultural University Wuhan China
- The Cooperative Innovation Center for Sustainable Pig Production Wuhan China
| | - Lei Wang
- Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture and Rural Affairs & Key Laboratory of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education Huazhong Agricultural University Wuhan China
- The Cooperative Innovation Center for Sustainable Pig Production Wuhan China
| | - Yaru Chen
- Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture and Rural Affairs & Key Laboratory of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education Huazhong Agricultural University Wuhan China
- The Cooperative Innovation Center for Sustainable Pig Production Wuhan China
| | - Fenge Li
- Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture and Rural Affairs & Key Laboratory of Agricultural Animal Genetics Breeding and Reproduction of Ministry of Education Huazhong Agricultural University Wuhan China
- The Cooperative Innovation Center for Sustainable Pig Production Wuhan China
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Xu R, Qin N, Xu X, Sun X, Chen X, Zhao J. Implication of SLIT3-ROBO1/ROBO2 in granulosa cell proliferation, differentiation and follicle selection in the prehierarchical follicles of hen ovary. Cell Biol Int 2018; 42:1643-1657. [PMID: 30288875 DOI: 10.1002/cbin.11063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 08/29/2018] [Indexed: 12/11/2022]
Abstract
The SLIT/ROBO pathway has been implicated in prehierarchical follicular development of hen ovary by an intrafollicular autocrine and/or paracrine fashion. SLIT3, one of the key components of the SLIT/ROBO family, serves as a ligand that potentially interacts with the four receptors, ROBO1, ROBO2, ROBO3 and ROBO4. But the exact roles and regulatory mechanism of SLIT3 in chicken ovarian follicle development remain largely unclear. The present study was conducted to investigate the potential roles and molecular regulation of SLIT3 in granulosa cell (GC) proliferation, differentiation and follicle selection within the prehierarchical follicles of hen ovary. We found that SLIT3 interacts physically with the four ROBO receptors, but the expression of the ROBO1 and ROBO2 genes are more susceptible to the regulation of SLIT3 ligand than that of the ROBO3 and ROBO4 genes. Moreover, the siRNA-mediated knockdown of SLIT3 in the follicular GCs leads to a significant increase in cell proliferation. Conversely, overexpression of SLIT3 results in a remarkable reduction in GC proliferation. Furthermore, the overexpressed SLIT3 has notably decreased the mRNA and protein expression levels of follicle-stimulating hormone (FSHR), growth and differentiation factor 9 (GDF9), steroidogenic acute regulatory protein (STAR) and cytochrome P450 11A1 (CYP11A1) in the GCs. These results indicated that SLIT3 may play an inhibitory effect on GC proliferation, differentiation and follicle selection, and these suppressive actions of SLIT3 in the GC proliferation can be prohibited by the siRNA-mediated knockdown of ROBO1 and ROBO2 receptors. The current data provide a basis for further investigation of molecular mechanisms of SLIT3-ROBO1/2 pathway in controlling the prehierarchical follicle development of the hen ovary.
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Affiliation(s)
- Rifu Xu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Xincheng Avenue, No. 2888, Changchun, 130118, Jilin, P. R. China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, 130118, P. R. China
| | - Ning Qin
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Xincheng Avenue, No. 2888, Changchun, 130118, Jilin, P. R. China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Changchun, 130118, P. R. China
| | - Xiaoxing Xu
- Department of Human Nutrition, Food, and Animal Sciences, University of Hawaii at Manoa, Hawaii, 96822, USA
| | - Xue Sun
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Xincheng Avenue, No. 2888, Changchun, 130118, Jilin, P. R. China
| | - Xiaoxia Chen
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Xincheng Avenue, No. 2888, Changchun, 130118, Jilin, P. R. China
| | - Jinghua Zhao
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Jilin Agricultural University, Xincheng Avenue, No. 2888, Changchun, 130118, Jilin, P. R. China
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Xu HY, Yang XG, Lu SS, Liang XW, Lu YQ, Zhang M, Lu KH. Treatment with acetyl-l-carnitine during in vitro maturation of buffalo oocytes improves oocyte quality and subsequent embryonic development. Theriogenology 2018; 118:80-89. [DOI: 10.1016/j.theriogenology.2018.05.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/27/2018] [Accepted: 05/27/2018] [Indexed: 12/31/2022]
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Alam MH, Lee J, Miyano T. GDF9 and BMP15 induce development of antrum-like structures by bovine granulosa cells without oocytes. J Reprod Dev 2018; 64:423-431. [PMID: 30033985 PMCID: PMC6189575 DOI: 10.1262/jrd.2018-078] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The role of oocytes in follicular antrum formation is not well understood. We examined the effect of oocyte-derived growth factors, growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15), on the formation of antrum-like structures by cultured bovine oocyte-granulosa cell complexes (OGCs). OGCs containing growing oocytes (105‒115 µm in diameter) were collected from early antral follicles (1.2‒1.8 mm) and used to prepare oocytectomized complexes (OXCs) and granulosa cell complexes (GCs). The mRNAs of GDF9 and BMP15 were expressed in the oocytes, but not in the granulosa cells. The complexes were cultured for five days with or without GDF9 and BMP15 either alone or in combination. The OGCs maintained their complex integrity and developed antrum-like structure, whereas OXCs and GCs neither maintained their integrity nor developed any antrum-like structure without growth factors. GDF9 or BMP15 alone increased the integrity of these complexes and induced antrum-like structures in OXCs and GCs. Moreover, the combination of GDF9 and BMP15 was more potent for both phenomena in all types of complexes. In OXCs and GCs cultured without GDF9 and BMP15 or with BMP15 alone, outgrowing granulosa cells differentiated into fibroblast-like cells. The combination of GDF9 and BMP15 suppressed the appearance of fibroblast-like cells in OXCs and GCs during incubation. Instead, the granulosa cells appeared rhomboid and pebble-like in shape, similar to those in OGCs cultured without supplementation of GDF9 and BMP15. These results suggest that oocytes maintain complex integrity by preventing granulosa cell differentiation and participate in follicular antrum formation via GDF9 and BMP15.
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Affiliation(s)
- Md Hasanur Alam
- Laboratory of Developmental Biotechnology, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Jibak Lee
- Laboratory of Developmental Biotechnology, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Takashi Miyano
- Laboratory of Developmental Biotechnology, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
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Son YJ, Lee SE, Park YG, Jeong SG, Shin MY, Kim EY, Park SP. Fibroblast Growth Factor 10 Enhances the Developmental Efficiency of Somatic Cell Nuclear Transfer Embryos by Accelerating the Kinetics of Cleavage During In Vitro Maturation. Cell Reprogram 2018; 20:196-204. [DOI: 10.1089/cell.2017.0050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Yeo-Jin Son
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, Korea
- Stem Cell Research Center, Jeju National University, Jeju, Korea
| | - Seung-Eun Lee
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, Korea
- Stem Cell Research Center, Jeju National University, Jeju, Korea
| | - Yun-Gwi Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, Korea
- Stem Cell Research Center, Jeju National University, Jeju, Korea
| | - Sang-Gi Jeong
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, Korea
- Stem Cell Research Center, Jeju National University, Jeju, Korea
| | - Min-Young Shin
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, Korea
- Stem Cell Research Center, Jeju National University, Jeju, Korea
| | - Eun-Young Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, Korea
- Stem Cell Research Center, Jeju National University, Jeju, Korea
- Mirae Cell Bio, Seoul, Korea
| | - Se-Pill Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, Korea
- Stem Cell Research Center, Jeju National University, Jeju, Korea
- Mirae Cell Bio, Seoul, Korea
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Pan B, Toms D, Li J. MicroRNA-574 suppresses oocyte maturation via targeting hyaluronan synthase 2 in porcine cumulus cells. Am J Physiol Cell Physiol 2017; 314:C268-C277. [PMID: 29141921 DOI: 10.1152/ajpcell.00065.2017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
MicroRNAs (miRNAs) have been established as important regulators of gene expression in the mammalian ovary. A previous screen of small RNA in the porcine ovary identified the downregulation of miR-574 during oocyte maturation, although its role during this process was not established. Here, we found that miR-574 directly targets the transcript for hyaluronan synthase 2 protein (HAS2), a key enzyme in the production of extracellular matrix by the surrounding cumulus cells. Inhibiting this miRNA during in vitro maturation (IVM) increased HAS2 levels along with several markers of oocyte quality. Furthermore, inhibiting miR-574 increased oocyte meiotic progression. We then stably overexpressed miR-574 using a lentiviral vector to transduce cumulus cells during IVM. This gain-of-function approach resulted in a 50% decrease in HAS2 expression and nearly 20% reduction in oocyte progression through meiosis. To confirm the specific targeting of HAS2 by miR-574, we constructed several luciferase vectors harboring the HAS2 3'-untranslated region. Cotransfection of the reporter and miR-574 attenuated luciferase activity. After mutating the putative miR-574 binding site, however, this effect was abolished and luciferase activity remained high. Our results show that the direct targeting of HAS2 by miR-574 negatively impacts oocyte quality during IVM and that inhibiting miR-574 derepresses HAS2 expression and subsequently improves oocyte maturation. Taken together, we help to elucidate a mechanism of posttranscriptional regulation by miRNA in the mammalian ovary.
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Affiliation(s)
- Bo Pan
- College of Life Science and Engineering, Foshan University , Guangdong , China.,Department of Animal Biosciences, University of Guelph , Guelph, Ontario , Canada
| | - Derek Toms
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary , Calgary, Alberta , Canada
| | - Julang Li
- College of Life Science and Engineering, Foshan University , Guangdong , China.,Department of Animal Biosciences, University of Guelph , Guelph, Ontario , Canada
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Stocco C, Baumgarten SC, Armouti M, Fierro MA, Winston NJ, Scoccia B, Zamah AM. Genome-wide interactions between FSH and insulin-like growth factors in the regulation of human granulosa cell differentiation. Hum Reprod 2017; 32:905-914. [PMID: 28158425 DOI: 10.1093/humrep/dex002] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 01/05/2017] [Indexed: 12/13/2022] Open
Abstract
Study question Is the genome-wide response of human cumulus cells to FSH and insulin-like growth factors (IGFs) comparable to the response observed in undifferentiated granulosa cells (GCs)? Summary answer FSH actions in human cumulus cells mimic those observed in preantral undifferentiated GCs from laboratory animals, and approximately half of the regulated genes are dependent on the simultaneous activation of the IGF1 receptor (IGF1R). What is known already Animal studies have shown that FSH and the IGFs system are required for follicle growth and maturation. In humans, IGF levels in the follicular fluid correlate with patients' responses to IVF protocols. The main targets of FSH and IGFs in the ovary are the GCs; however, the genomic mechanisms involved in the response of GCs to these hormones are unknown. Study design, size, duration Human cumulus cells isolated from IVF patients were cultured for 48 h in serum-free media in the presence of vehicle, FSH, IGF1R inhibitor or their combination. Participants/materials, setting, methods Discarded cumulus cells were donated to research by reproductive-aged women undergoing IVF due to non-ovarian etiologies of infertility at a university-affiliated clinic. The effect of FSH and/or IGF1R inhibition on cumulus cell function was evaluated using Affymetrix microarrays, quantitative PCR, western blot, promoter assays and hormone level measurements. Main results and the role of chance The findings demonstrate that human cumulus cells from IVF patients respond to FSH with the expression of genes known to be markers of the preantral to preovulatory differentiation of GCs. These results also demonstrate that ~50% of FSH-regulated genes require IGF1R activity and suggest that several aspects of follicle growth are coordinately regulated by FSH and IGFs in humans. This novel approach will allow for future mechanistic and molecular studies on the regulation of human follicle maturation. Large scale data Data set can be accessed at Gene Expression Omnibus number GSE86427. Limitations, reasons for caution Experiments were performed using primary human cumulus cells. This may not represent the response of intact follicles. Wider implications of the findings Understanding the mechanisms involved in the regulation of GC differentiation by FSH and IGF in humans will contribute to improving treatments for infertility. Study funding/competing interest(s) The project was financed by the National Instituted of Health grant number R56HD086054 and R01HD057110 (C.S.). The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript. We have no competing interests to declare.
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Affiliation(s)
- Carlos Stocco
- Department of Physiology and Biophysics, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Sarah C Baumgarten
- Department of Physiology and Biophysics, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Marah Armouti
- Department of Physiology and Biophysics, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Michelle A Fierro
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Nicola J Winston
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - Bert Scoccia
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
| | - A Musa Zamah
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, The University of Illinois at Chicago College of Medicine, Chicago, IL, USA
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Reader KL, Mottershead DG, Martin GA, Gilchrist RB, Heath DA, McNatty KP, Juengel JL. Signalling pathways involved in the synergistic effects of human growth differentiation factor 9 and bone morphogenetic protein 15. Reprod Fertil Dev 2017; 28:491-8. [PMID: 25155366 DOI: 10.1071/rd14099] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 07/17/2014] [Indexed: 11/23/2022] Open
Abstract
Growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) act synergistically to regulate granulosa cell proliferation and steroid production in several species. Several non-Sma and mothers against decapentaplegic (SMAD) signalling pathways are involved in the action of murine and ovine GDF9 and BMP15 in combination, with the pathways utilised differing between the two species. The aims of this research were to determine if human GDF9 and BMP15 also act in a synergistic manner to stimulate granulosa cell proliferation and to identify which non-SMAD signalling pathways are activated. Human GDF9 with BMP15 (GDF9+BMP15) stimulated an increase in (3)H-thymidine incorporation (P<0.001), which was greater than the increase with BMP15 alone, while GDF9 alone had no effect. The stimulation of (3)H-thymidine incorporation by GDF9+BMP15 was reduced by the addition of inhibitors to the SMAD2/3, nuclear factor-KB (NF-KB) and c-Jun N-terminal kinase (JNK) signalling pathways. Inhibitors to the SMAD1/5/8, extracellular signal-regulated kinase mitogen-activated protein kinase (ERK-MAPK) or p38-MAPK pathways had no effect. The addition of the BMP receptor 2 (BMPR2) extracellular domain also inhibited stimulation of (3)H-thymidine incorporation by GDF9+BMP15. In conclusion, human GDF9 and BMP15 act synergistically to stimulate granulosa cell proliferation, a response that also involves species-specific non-SMAD signalling pathways.
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Affiliation(s)
- Karen L Reader
- AgResearch, Animal Productivity, Invermay Agricultural Centre, Private Bag 50034, Mosgiel 9053, New Zealand
| | - David G Mottershead
- Robinson Research Institute, School of Paediatrics and Reproductive Health, University of Adelaide, GPO Box 498, Adelaide, SA, Australia
| | - Georgia A Martin
- Robinson Research Institute, School of Paediatrics and Reproductive Health, University of Adelaide, GPO Box 498, Adelaide, SA, Australia
| | - Robert B Gilchrist
- Robinson Research Institute, School of Paediatrics and Reproductive Health, University of Adelaide, GPO Box 498, Adelaide, SA, Australia
| | - Derek A Heath
- Victoria University of Wellington, School of Biological Sciences, PO Box 600, Wellington, New Zealand
| | - Kenneth P McNatty
- Victoria University of Wellington, School of Biological Sciences, PO Box 600, Wellington, New Zealand
| | - Jennifer L Juengel
- AgResearch, Animal Productivity, Invermay Agricultural Centre, Private Bag 50034, Mosgiel 9053, New Zealand
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Li X, Wang H, Sheng Y, Wang Z. MicroRNA-224 delays oocyte maturation through targeting Ptx3 in cumulus cells. Mech Dev 2016; 143:20-25. [PMID: 28039065 DOI: 10.1016/j.mod.2016.12.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 12/19/2016] [Accepted: 12/26/2016] [Indexed: 01/15/2023]
Abstract
MicroRNAs (miRNAs) have been improved to regulate oocyte development in a cell- or stage-specific manner. In this study, we aimed to clarify microRNA-224's (miR-224) role in cumulus cells (CCs), to find out whether a change level of miR-224 in CCs could influence the maturation of oocyte. We found that overexpression of miR-224 of CCs led to the impairment of cell expansion, along with a decrease in the gene expression associated with cell expansion and maturation of oocyte. The increased expression of miR-224 in CC interrupted oocyte cell cycle at the GV stage. The GDF9, BMP15 and ZP3 of the oocytes were also down-regulated. The following in vitro fertilization had yielded a lower number of oocytes from cumulus-oocyte complexes (COCs) overexpressing miR-224 when reaching the blastocyst stage. The suppressive effect of miR-224 in the maturation of COC is validated by the miR-224 knockdown model, where the expansion of cumulus cell was increased and oocyte was developed to MII stage. In addition, the expression of aromatase in CCs was down-regulated by miR-224, resulting in a decreased level of estradiol (E2). A further investigation found that miR-224 down-regulated the expression of protein and mRNA of Ptx3 by targeting its 3'UTR. Our study revealed that miR-224 regulates the gene expression and function of CCs, which influences the maturation of oocyte, at least in part, via targeting Ptx3.
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Affiliation(s)
- Xiufang Li
- Center for Reproductive Medicine, Shandong University, Jinan 250001, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan 250001, China; The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan 250001, China
| | - Huidan Wang
- Center for Reproductive Medicine, Shandong University, Jinan 250001, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan 250001, China; The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan 250001, China
| | - Yan Sheng
- Center for Reproductive Medicine, Shandong University, Jinan 250001, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Jinan 250001, China; The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Jinan 250001, China
| | - Zhongqing Wang
- Department of Traditional Chinese Medicine, Provincial Hospital Affiliated to Shandong University, Jinan 250022, China.
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Cook-Andersen H, Curnow KJ, Su HI, Chang RJ, Shimasaki S. Growth and differentiation factor 9 promotes oocyte growth at the primary but not the early secondary stage in three-dimensional follicle culture. J Assist Reprod Genet 2016; 33:1067-77. [PMID: 27155601 DOI: 10.1007/s10815-016-0719-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 04/25/2016] [Indexed: 10/21/2022] Open
Abstract
PURPOSE Factors that differentially regulate oocyte and granulosa cell growth within the early preantral follicle and how these factors differ at each stage of follicle growth remain poorly understood. The aim of this study was to isolate and evaluate the effect of recombinant growth and differentiation factor 9 (GDF9) on oocyte and granulosa cell growth at the primary and early secondary stages of preantral follicle growth during in vitro culture. METHODS Primary stage follicles (diameters of 50-89 μm) and early secondary stage follicles (diameters of 90-120 μm) were isolated from immature mice, and individual, intact follicles were cultured in vitro in the presence and absence of recombinant GDF9. The effects of GDF9 on follicle growth were determined by the assessment of changes in the follicle volume during culture. The growth of the granulosa cell and oocyte compartments of the follicles was evaluated separately at each stage. RESULTS GDF9 significantly increased the growth of isolated follicles at both the primary and early secondary follicle stages. Independent evaluation of the granulosa cell and oocyte compartments revealed that, while GDF9 promoted granulosa cell growth at both stages of folliculogenesis, oocyte growth was stage specific. GDF9 promoted growth of the oocyte at the primary, but not the early secondary, follicle stage. CONCLUSIONS These findings demonstrate a stage-specific role for GDF9 in the regulation of oocyte and granulosa cell growth at the primary and early secondary stages of preantral follicle development.
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Affiliation(s)
- Heidi Cook-Andersen
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093-0633, USA.
| | - Kirsten J Curnow
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093-0633, USA
| | - H Irene Su
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093-0633, USA
| | - R Jeffrey Chang
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093-0633, USA
| | - Shunichi Shimasaki
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093-0633, USA.
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Abadjieva D, Kistanova E. Tribulus terrestris Alters the Expression of Growth Differentiation Factor 9 and Bone Morphogenetic Protein 15 in Rabbit Ovaries of Mothers and F1 Female Offspring. PLoS One 2016; 11:e0150400. [PMID: 26928288 PMCID: PMC4771171 DOI: 10.1371/journal.pone.0150400] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 02/15/2016] [Indexed: 01/03/2023] Open
Abstract
Although previous research has demonstrated the key role of the oocyte-derived factors, bone morphogenetic protein (BMP) 15 and growth differentiation factor (GDF) 9, in follicular development and ovulation, there is a lack of knowledge on the impact of external factors, which females are exposed to during folliculogenesis, on their expression. The present study investigated the effect of the aphrodisiac Tribulus terrestris on the GDF9 and BMP15 expression in the oocytes and cumulus cells at mRNA and protein levels during folliculogenesis in two generations of female rabbits. The experiment was conducted with 28 New Zealand rabbits. Only the diet of the experimental mothers group was supplemented with a dry extract of T. terrestris for the 45 days prior to insemination. The expression of BMP15 and GDF9 genes in the oocytes and cumulus cells of mothers and F1 female offspring was analyzed using real-time polymerase chain reaction (RT-PCR). The localization of the GDF9 and BMP15 proteins in the ovary tissues was determined by immunohistochemical analysis. The BMP15 and GDF9 transcripts were detected in the oocytes and cumulus cells of rabbits from all groups. T. terrestris caused a decrease in the BMP15 mRNA level in the oocytes and an increase in the cumulus cells. The GDF9 mRNA level increased significantly in both oocytes and cumulus cells. The downregulated expression of BMP15 in the treated mothers' oocytes was inherited in the F1 female offspring born to treated mothers. BMP15 and GDF9 show a clearly expressed sensitivity to the bioactive compounds of T. terrestris.
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Affiliation(s)
- Desislava Abadjieva
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Elena Kistanova
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
- * E-mail:
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Yang CR, Lowther KM, Lalioti MD, Seli E. Embryonic Poly(A)-Binding Protein (EPAB) Is Required for Granulosa Cell EGF Signaling and Cumulus Expansion in Female Mice. Endocrinology 2016; 157:405-16. [PMID: 26492470 PMCID: PMC4701890 DOI: 10.1210/en.2015-1135] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Embryonic poly(A)-binding protein (EPAB) is the predominant poly(A)-binding protein in Xenopus, mouse, and human oocytes and early embryos before zygotic genome activation. EPAB is required for translational activation of maternally stored mRNAs in the oocyte and Epab(-/-) female mice are infertile due to impaired oocyte maturation, cumulus expansion, and ovulation. The aim of this study was to characterize the mechanism of follicular somatic cell dysfunction in Epab(-/-) mice. Using a coculture system of oocytectomized cumulus oophorus complexes (OOXs) with denuded oocytes, we found that when wild-type OOXs were cocultured with Epab(-/-) oocytes, or when Epab(-/-) OOXs were cocultured with WT oocytes, cumulus expansion failed to occur in response to epidermal growth factor (EGF). This finding suggests that oocytes and cumulus cells (CCs) from Epab(-/-) mice fail to send and receive the necessary signals required for cumulus expansion. The abnormalities in Epab(-/-) CCs are not due to lower expression of the oocyte-derived factors growth differentiation factor 9 or bone morphogenetic protein 15, because Epab(-/-) oocytes express these proteins at comparable levels with WT. Epab(-/-) granulosa cells (GCs) exhibit decreased levels of phosphorylated MEK1/2, ERK1/2, and p90 ribosomal S6 kinase in response to lutenizing hormone and EGF treatment, as well as decreased phosphorylation of the EGF receptor. In conclusion, EPAB, which is oocyte specific, is required for the ability of CCs and GCs to become responsive to LH and EGF signaling. These results emphasize the importance of oocyte-somatic communication for GC and CC function.
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Affiliation(s)
- Cai-Rong Yang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
| | - Katie M Lowther
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
| | - Maria D Lalioti
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
| | - Emre Seli
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut 06510
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Matsuno Y, Onuma A, Fujioka YA, Emori C, Fujii W, Naito K, Sugiura K. Effects of porcine oocytes on the expression levels of transcripts encoding glycolytic enzymes in granulosa cells. Anim Sci J 2015; 87:1114-21. [PMID: 26560349 DOI: 10.1111/asj.12539] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 07/14/2015] [Accepted: 08/10/2015] [Indexed: 11/28/2022]
Abstract
Oocytes play critical roles in regulating the expression of transcripts encoding the glycolytic enzymes phosphofructokinase, platelet (PFKP) and lactate dehydrogenase A (LDHA) in granulosa cells in mice, but whether this is the case in pigs or other mammals has not been adequately investigated. Therefore, the aim of this study was to determine whether porcine oocytes regulate the expression levels of these transcripts in granulosa cells in vitro. Porcine cumulus cells expressed higher levels of PFKP and LDHA transcripts than mural granulosa cells (MGCs). However, co-culturing with oocytes had no significant effect on the isolated cumulus cells. While murine oocytes promoted the expression of both Pfkp and Ldha transcripts by murine MGCs, porcine oocytes promoted the expression of only Pfkp, but not Ldha transcripts by murine MGCs. Neither murine nor porcine oocytes affected PFKP and LDHA expression by porcine MGCs. Moreover, in the presence of porcine follicular fluid, porcine oocytes maintained the expression of PFKP, but not LDHA by porcine cumulus cells. Therefore, porcine oocytes are capable of regulating the expression of PFKP but not LDHA in granulosa cells in coordination with unknown factor(s) present in the follicular fluid.
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Affiliation(s)
- Yuta Matsuno
- Laboratory of Applied Genetics, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Asuka Onuma
- Laboratory of Applied Genetics, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yoshie A Fujioka
- Laboratory of Applied Genetics, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Chihiro Emori
- Laboratory of Applied Genetics, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Wataru Fujii
- Laboratory of Applied Genetics, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kunihiko Naito
- Laboratory of Applied Genetics, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Koji Sugiura
- Laboratory of Applied Genetics, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
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Fibroblast growth factor 17 and bone morphogenetic protein 15 enhance cumulus expansion and improve quality of in vitro –produced embryos in cattle. Theriogenology 2015; 84:390-8. [DOI: 10.1016/j.theriogenology.2015.03.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 03/11/2015] [Accepted: 03/14/2015] [Indexed: 12/31/2022]
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Pan B, Toms D, Shen W, Li J. MicroRNA-378 regulates oocyte maturation via the suppression of aromatase in porcine cumulus cells. Am J Physiol Endocrinol Metab 2015; 308:E525-34. [PMID: 25628423 PMCID: PMC4360015 DOI: 10.1152/ajpendo.00480.2014] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We sought to investigate whether miR-378 plays a role in cumulus cells and whether the manipulation of miRNA levels in cumulus cells influences oocyte maturation in vitro. Cumulus-oocyte complexes (COCs) from ovarian follicles had significantly lower levels of precursor and mature miR-378 in cumulus cells surrounding metaphase II (MII) oocytes than cumulus cells surrounding germinal vesicle (GV) oocytes, suggesting a possible role of miR-378 during COC maturation. Overexpression of miR-378 in cumulus cells impaired expansion and decreased expression of genes associated with expansion (HAS2, PTGS2) and oocyte maturation (CX43, ADAMTS1, PGR). Cumulus cell expression of miR-378 also suppressed oocyte progression from the GV to MII stage (from 54 ± 2.7 to 31 ± 5.1%), accompanied by a decrease of growth differentiation factor 9 (GDF9), bone morphogenetic protein 15 (BMP15), zona pellucida 3 (ZP3), and CX37 in the oocytes. Subsequent in vitro fertilization resulted in fewer oocytes from COCs overexpressing miR-378 reaching the blastocyst stage (7.3 ± 0.7 vs. 16.6 ± 0.5%). miR-378 knockdown led to increased cumulus expansion and oocyte progression to MII, confirming a specific effect of miR-378 in suppressing COC maturation. Aromatase (CYP19A1) expression in cumulus cells was also inhibited by miR-378, leading to a significant decrease in estradiol production. The addition of estradiol to IVM culture medium reversed the effect of miR-378 on cumulus expansion and oocyte meiotic progression, suggesting that decreased estradiol production via suppression of aromatase may be one of the mechanisms by which miR-378 regulates the maturation of COCs. Our data suggest that miR-378 alters gene expression and function in cumulus cells and influences oocyte maturation, possibly via oocyte-cumulus interaction and paracrine regulation.
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Affiliation(s)
- Bo Pan
- Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada; and
| | - Derek Toms
- Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada; and
| | - Wei Shen
- Laboratory of Germ Cell Biology, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, China
| | - Julang Li
- Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada; and
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Chakraborty P, Roy SK. Effect of azaline B on follicular development and functions in the hamster. Mol Cell Endocrinol 2015; 400:1-9. [PMID: 25462584 PMCID: PMC4274241 DOI: 10.1016/j.mce.2014.11.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 11/18/2014] [Accepted: 11/19/2014] [Indexed: 01/08/2023]
Abstract
The usefulness of azaline B, a GnRH antagonist, in suppressing gonadotropin secretion in the golden hamster was examined by examining follicular development, steroidogenesis and expression of steroidogenic enzymes. Serum levels of P and E declined significantly, while FSH or LH was undetectable in azaline B-treated hamsters. FSH significantly increased serum E levels, whereas LH upregulated serum P levels. The formation of antral follicles ceased in azaline-treated hamsters, but was reversed by FSH with or without LH supplement. FSH also activated the primordial follicle pool resulting in increased formation of primary and preantral follicles. Further, an increasing trend in the formation of preantral follicles in response to E or E + P, and the formation of antral follicles in response to E + P treatment was evident. The level of Cyp11a1 mRNA increased markedly in LH- or LH + FSH-treated hamsters, whereas FSH with or without LH upregulated Cyp17a1, Cyp19a1 and Fshr mRNA expression. E without or with P also upregulated ovarian Cyp19a1 mRNA expression. The expression of enzyme protein corroborated the mRNA data. In summary, azaline B is an efficient GnRH antagonist in the hamster, and will be useful in studying the selective effect of gonadotropins on ovarian functions without disrupting the physiological functions of other hormones in ovarian cells.
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Affiliation(s)
- Prabuddha Chakraborty
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Shyamal K Roy
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, USA; Department of Obstetrics and Gynecology, University of Nebraska Medical Center, Omaha, NE, USA.
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50
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Lin JS, Kauff A, Diao Y, Yang H, Lawrence S, Juengel JL. Creation of DNA aptamers against recombinant bone morphogenetic protein 15. Reprod Fertil Dev 2015; 28:RD14409. [PMID: 25557239 DOI: 10.1071/rd14409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 12/01/2014] [Indexed: 12/12/2022] Open
Abstract
The oocyte-derived growth factor bone morphogenetic protein (BMP) 15 plays important roles in fertility, but its mechanism of action differs between species. Generation of BMP15-binding molecules, as an essential investigation tool, would be helpful to provide valuable insight into the underlying biological features of BMP15. The BMP15-binding molecules could be antibodies or aptamers. Aptamers have many advantages over antibodies as macromolecular ligands for target proteins. DNA aptamers can be obtained by a method of Systematic Evolution of Ligands by EXponential enrichment (SELEX) beginning with a pool of random sequences. However, the success of this technique cannot be guaranteed if the initial pool lacks candidate sequences. Herein, we report on the creation of DNA aptamers by means of modified SELEX. The modification included enhanced mutation and progressive selection during an in vitro evolutionary process. As a proof-of-principle, we started from a single sequence instead of a multiple-sequence pool. Functional aptamers against the recombinant BMP15 were successfully created and identified.
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