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Sakaguchi K. In Vitro Growth of Mammalian Follicles and Oocytes. Animals (Basel) 2024; 14:1355. [PMID: 38731360 PMCID: PMC11083657 DOI: 10.3390/ani14091355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/10/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
Mammalian ovaries contain a large number of immature follicles, most of which are destined to degenerate before ovulation [...].
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Affiliation(s)
- Kenichiro Sakaguchi
- Laboratory of Veterinary Theriogenology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Yanagito 1-1, Gifu 501-1193, Japan;
- Division of Animal Medical Science, Center for One Medicine Innovative Translational Research, Institute for Advanced Study, Gifu University, Yanagito 1-1, Gifu 501-1193, Japan
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2
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Xiao-Hong H, Meng W, Yang-Yang P, Jiang-Feng F, Jing-Lei W, Ling Z, Ya-Ying W, Tong-Xiang Z, Tian Z, Tian-Yi D, Yan C, Si-Jiu Y. Effect of follicle-stimulating hormone and luteinizing hormone on apoptosis, autophagy, and the release and reception of some steroid hormones in yak granulosa cells through miR-23a/ASK1 axis. Cell Signal 2024; 115:111010. [PMID: 38128707 DOI: 10.1016/j.cellsig.2023.111010] [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: 11/14/2023] [Revised: 12/10/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023]
Abstract
Follicle-stimulating hormone (FSH), luteinizing hormone (LH), miR-23a, apoptosis signal-regulating kinase 1(ASK1)/c-Jun N-terminal kinase (JNK), autophagy and apoptosis play crucial roles in follicular development. However, their role in yak granulosa cells (GCs) remains unknown. Therefore, we examined the effect of miR-23a, ASK1, FSH, and LH on apoptosis, autophagy, and the release and reception of some steroid hormones in these cells. Our results showed that miR-23a overexpression significantly increased the abundance of Beclin1, the LC3II/I ratio, and the number of Ad-mRFP-GFP-LC3-labeled autophagosomes, and decreased p62 abundance. Additionally, Bax abundance and the number of terminal deoxynucleotidyl transferase deoxynucleotide triphosphate nick end labeling-positive cells were reduced, while Bcl2 expression was increased. Overexpression of miR-23a also significantly increased the abundance of estradiol receptor α (ER-α) and β (ER-β) and the concentrations of estradiol (E2), progesterone (P4) in yak GCs. Here, treating yak GCs with miR-23a decreased ASK1 expression, which regulates ASK1/JNK-mediated apoptosis, autophagy, E2 and P4 levels, and ER-α/β abundance. In contrast, treatment of yak GCs with FSH (10 μg/mL) and LH (100 μg/mL) increased miR-23a abundance, regulating the subsequent effect on ASK1/JNK-mediated apoptosis, autophagy, ER-α/β abundance, and E2 and P4 concentrations. In conclusion, miR-23a enhances autophagy in yak GCs, attenuates apoptosis, and increases ER-α/β abundance and E2 and P4 concentrations by downregulating ASK1. Additionally, FSH and LH can regulate these effects of miR-23a by altering its expression. These results provide important insights that can inform the development of strategies to reduce abnormal follicular atresia and improve the reproductive rate of yaks.
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Affiliation(s)
- Han Xiao-Hong
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Wang Meng
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Pan Yang-Yang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Fan Jiang-Feng
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Wang Jing-Lei
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhao Ling
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Wang Ya-Ying
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhang Tong-Xiang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhao Tian
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Ding Tian-Yi
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Cui Yan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Yu Si-Jiu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China.
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3
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Li C, Fu C, He T, Liu Z, Zhou J, Wu G, Liu H, Shen M. FSH preserves the viability of hypoxic granulosa cells via activating the HIF-1α-GAS6-Axl-Akt pathway. J Cell Physiol 2024; 239:e31162. [PMID: 37994152 DOI: 10.1002/jcp.31162] [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: 06/11/2023] [Revised: 11/07/2023] [Accepted: 11/13/2023] [Indexed: 11/24/2023]
Abstract
The developmental fate of ovarian follicles is primarily determined by the survival status (proliferation or apoptosis) of granulosa cells (GCs). Owing to the avascular environment within follicles, GCs are believed to live in a hypoxic niche. Follicle-stimulating hormone (FSH) has been reported to improve GCs survival by governing hypoxia-inducible factor-1α (HIF-1α)-dependent hypoxia response, but the underlying mechanisms remain poorly understood. Growth arrest-specific gene 6 (GAS6) is a secreted ligand of tyrosine kinase receptors, and has been documented to facilitate tumor growth. Here, we showed that the level of GAS6 was markedly increased in mouse ovarian GCs after the injection of FSH. Specifically, FSH-induced GAS6 expression was accompanied by HIF-1α accumulation under conditions of hypoxia both in vivo and in vitro, whereas inhibition of HIF-1α with small interfering RNAs/antagonist repressed both expression and secretion of GAS6. As such, Luciferase reporter assay and chromatin immunoprecipitation assay showed that HIF-1α directly bound to a hypoxia response element site within the Gas6 promoter and contributed to the regulation of GAS6 expression in response to FSH. Notably, blockage of GAS6 and/or its receptor Axl abrogated the pro-survival effects of FSH under hypoxia. Moreover, phosphorylation of Axl by GAS6 is required for FSH-mediated Akt activation and the resultant pro-survival phenotypes. Finally, the in vitro findings were verified in vivo, which showed that FSH-induced proliferative and antiapoptotic effects in ovarian GCs were diminished after blocking GAS6/Axl using HIF-1α antagonist. These findings highlight a novel function of FSH in preserving GCs viability against hypoxic stress by activating the HIF-1a-GAS6-Axl-Akt pathway.
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Affiliation(s)
- Chengyu Li
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Chen Fu
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Tong He
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zhaojun Liu
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jiaqi Zhou
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Gang Wu
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Honglin Liu
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Ming Shen
- Department of Animal Genetic, Breeding and Reproduction Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Dey P, Monferini N, Donadini L, Lodde V, Franciosi F, Luciano AM. Method of Isolation and In Vitro Culture of Primordial Follicles in Bovine Animal Model. Methods Mol Biol 2024; 2770:171-182. [PMID: 38351454 DOI: 10.1007/978-1-0716-3698-5_13] [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] [Indexed: 02/16/2024]
Abstract
The mammalian ovary is a substantial source of oocytes arranged into follicles at various stages of folliculogenesis, from the primordial to the ovulatory ones. Primordial follicles constitute the most abundant source of gametes inside the mammalian ovary at any given time.The isolation of a high number of primordial follicles, together with the development of protocols for in vitro follicle growth, would provide a powerful tool to fully exploit the female reproductive potential and boost the rescue and restoration of fertility in assisted reproduction technologies in human medicine, animal breeding, and preservation of threatened species. However, the most significant limitation is the lack of efficient methods for isolating a healthy and homogeneous population of viable primordial follicles suitable for in vitro culture. Here, we provide a fast and high-yield strategy for the mechanical isolation of primordial follicles from limited portions of the ovarian cortex in the bovine animal model.
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Affiliation(s)
- Pritha Dey
- Reproductive and Developmental Biology Laboratory, Department of Veterinary Medicine and Animal Sciences, University of Milan, Milan, Italy
| | - Noemi Monferini
- Reproductive and Developmental Biology Laboratory, Department of Veterinary Medicine and Animal Sciences, University of Milan, Milan, Italy
| | - Ludovica Donadini
- Reproductive and Developmental Biology Laboratory, Department of Veterinary Medicine and Animal Sciences, University of Milan, Milan, Italy
| | - Valentina Lodde
- Reproductive and Developmental Biology Laboratory, Department of Veterinary Medicine and Animal Sciences, University of Milan, Milan, Italy
| | - Federica Franciosi
- Reproductive and Developmental Biology Laboratory, Department of Veterinary Medicine and Animal Sciences, University of Milan, Milan, Italy
| | - Alberto Maria Luciano
- Reproductive and Developmental Biology Laboratory, Department of Veterinary Medicine and Animal Sciences, University of Milan, Milan, Italy.
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5
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Denicol AC, Siqueira LGB. Maternal contributions to pregnancy success: from gamete quality to uterine environment. Anim Reprod 2023; 20:e20230085. [PMID: 37720724 PMCID: PMC10503891 DOI: 10.1590/1984-3143-ar2023-0085] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 07/21/2023] [Indexed: 09/19/2023] Open
Abstract
The establishment and maintenance of a pregnancy that goes to term is sine qua non for the long-term sustainability of dairy and beef cattle operations. The oocyte plays a critical role in providing the factors necessary for preimplantation embryonic development. Furthermore, the female, or maternal, environment where oocytes and embryos develop is crucial for the establishment and maintenance of a pregnancy to term. During folliculogenesis, the oocyte must sequentially acquire meiotic and developmental competence, which are the results of a series of molecular events preparing the highly specialized gamete to return to totipotency after fertilization. Given that folliculogenesis is a lengthy process in the cow, the occurrence of disease, metabolic imbalances, heat stress, or other adverse events can make it challenging to maintain oocyte quality. Following fertilization, the newly formed embryo must execute a tightly planned program that includes global DNA remodeling, activation of the embryonic genome, and cell fate decisions to form a blastocyst within a few days and cell divisions. The increasing use of assisted reproductive technologies creates an additional layer of complexity to ensure the highest oocyte and embryo quality given that in vitro systems do not faithfully recreate the physiological maternal environment. In this review, we discuss cellular and molecular factors and events known to be crucial for proper oocyte development and maturation, as well as adverse events that may negatively affect the oocyte; and the importance of the uterine environment, including signaling proteins in the maternal-embryonic interactions that ensure proper embryo development. We also discuss the impact of assisted reproductive technologies in oocyte and embryo quality and developmental potential, and considerations when looking into the prospects for developing systems that allow for in vitro gametogenesis as a tool for assisted reproduction in cattle.
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Affiliation(s)
- Anna Carolina Denicol
- Department of Animal Science, University of California, Davis, CA, United States of America
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6
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Rodriguez-Wallberg KA, Jiang Y, Lekberg T, Nilsson HP. The Late Effects of Cancer Treatment on Female Fertility and the Current Status of Fertility Preservation-A Narrative Review. Life (Basel) 2023; 13:1195. [PMID: 37240840 PMCID: PMC10224240 DOI: 10.3390/life13051195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/08/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Fertility counseling should be offered to all individuals of young reproductive age early in the patient's trajectory following a cancer diagnosis. Systemic cancer treatment and radiotherapy often have an inherent gonadotoxic effect with the potential to induce permanent infertility and premature ovarian failure. For the best chances to preserve a patient's fertility potential and to improve future quality of life, fertility preservation methods should be applied before cancer treatment initiation, thus multidisciplinary team-work and timely referral to reproductive medicine centers specialized in fertility preservation is recommended. We aim to review the current clinical possibilities for fertility preservation and summarize how infertility, as a late effect of gonadotoxic treatment, affects the growing population of young female cancer survivors.
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Affiliation(s)
- Kenny A. Rodriguez-Wallberg
- Department of Oncology-Pathology, Laboratory of translational Fertility Preservation, Karolinska Institutet, SE-17177 Stockholm, Sweden; (Y.J.); (T.L.); (H.P.N.)
- Department of Reproductive Medicine, Division of Gynecology and Reproduction, Karolinska University Hospital, SE-17177 Stockholm, Sweden
| | - Yanyu Jiang
- Department of Oncology-Pathology, Laboratory of translational Fertility Preservation, Karolinska Institutet, SE-17177 Stockholm, Sweden; (Y.J.); (T.L.); (H.P.N.)
| | - Tobias Lekberg
- Department of Oncology-Pathology, Laboratory of translational Fertility Preservation, Karolinska Institutet, SE-17177 Stockholm, Sweden; (Y.J.); (T.L.); (H.P.N.)
- Breast, Endocrine tumors and Sarcoma Cancer Theme, Karolinska University Hospital, SE-17177 Stockholm, Sweden
| | - Hanna P. Nilsson
- Department of Oncology-Pathology, Laboratory of translational Fertility Preservation, Karolinska Institutet, SE-17177 Stockholm, Sweden; (Y.J.); (T.L.); (H.P.N.)
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7
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Morton AJ, Candelaria JI, McDonnell SP, Zgodzay DP, Denicol AC. Review: Roles of follicle-stimulating hormone in preantral folliculogenesis of domestic animals: what can we learn from model species and where do we go from here? Animal 2023; 17 Suppl 1:100743. [PMID: 37567683 DOI: 10.1016/j.animal.2023.100743] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 08/13/2023] Open
Abstract
The pituitary gonadotropin FSH is a glycoprotein critical for the development of ovarian follicles. Upon binding to its G protein-coupled membrane receptor located on the granulosa cells of ovarian follicles, FSH elicits a cascade of downstream intracellular responses to promote follicle growth, maturation and steroidogenic activity, leading to the acquisition of meiotic and developmental competence of the enclosed oocyte. The essential role of FSH for proper antral follicle development and fertility is indisputable; over the decades, increasing evidence has also pointed toward survival and growth-promoting effects elicited by FSH in earlier-stage preantral follicles, deeming these follicles FSH-responsive as opposed to the FSH-dependent antral follicles. Transgenic mouse models lacking GnRH1, Fshβ or Fshr clearly demonstrate this difference by showing that, morphologically, preantral follicles develop to the secondary stage without FSH signaling; however, exogenous expression or administration of FSH to hormone-deficient mice promotes preantral follicle development, with more pronounced effects seen in earlier stages (i.e., primary follicles). In hypophysectomized sheep, FSH administration also promotes the growth of primary-stage preantral follicles. However, in vivo studies in this area are more challenging to perform in domestic animals compared to rodents, and therefore most of the research to date has been done in vitro. Here, we present the existing evidence for a role of FSH in regulating the growth and survival of preantral follicles from data generated in rodents and domestic animals. We provide an overview of the process of folliculogenesis, FSH synthesis and cellular signaling, and the response to FSH by preantral follicles in vivo and in vitro, as well as interactions between FSH and other molecules to regulate preantral folliculogenesis. The widespread use of FSH in ovarian stimulation programs for assisted reproduction creates a real need for a better understanding of the effects of FSH beyond stimulation of antral follicle growth, and more research in this area could lead to the development of more effective fertility programs. In addition to its importance as an agricultural species, the cow provides a desirable model for humans regarding ovarian stimulation due to similar timing of folliculogenesis and follicle size, as well as similar ovarian architecture. The refinement of minimally invasive methods to allow the study of preantral folliculogenesis in live animals will be critical to understand the short- and long-term effects of FSH in ovarian folliculogenesis.
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Affiliation(s)
- Amanda J Morton
- Department of Animal Science, University of California Davis, 450 Bioletti Way, Davis, CA 95616, United States
| | - Juliana I Candelaria
- Department of Animal Science, University of California Davis, 450 Bioletti Way, Davis, CA 95616, United States
| | - Stephanie P McDonnell
- Department of Animal Science, University of California Davis, 450 Bioletti Way, Davis, CA 95616, United States
| | - Daniel P Zgodzay
- Department of Animal Science, University of California Davis, 450 Bioletti Way, Davis, CA 95616, United States
| | - Anna C Denicol
- Department of Animal Science, University of California Davis, 450 Bioletti Way, Davis, CA 95616, United States.
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Han X, Pan Y, Fan J, Wang M, Wang L, Wang J, Afedo SY, Zhao L, Wang Y, Zhao T, Zhang T, Zhang R, Cui Y, Yu S. LncRNA MEG3 regulates ASK1/JNK axis-mediated apoptosis and autophagy via sponging miR-23a in granulosa cells of yak tertiary follicles. Cell Signal 2023; 107:110680. [PMID: 37086956 DOI: 10.1016/j.cellsig.2023.110680] [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: 02/09/2023] [Revised: 04/03/2023] [Accepted: 04/13/2023] [Indexed: 04/24/2023]
Abstract
Apoptosis and autophagy in granulosa cells (GCs) are highly related to follicular development and atresia. It has also been reported that they are related to LncRNA MEG3, miR-23a and apoptosis signal-regulating kinase 1 (ASK-1). However, their relationship to follicular development and the extent to which follicle stimulating hormone (FSH) or luteinizing hormone (LH) can regulate this process remain unknown. Here, we found that ASK1 and JNK were expressed in the GCs of gonadotropin-dependent follicles, and those levels were significantly higher (p < 0.05) in yak Tertiary follicles compared to that of Secondary follicles and Graafian follicles. Then, the effect of LncRNA MEG3 / miR-23a on apoptosis and autophagy via ASK1/JNK (c-Jun N-terminal kinase) in yak GCs was studied. Overexpressing LncRNA MEG3 reduced miR-23a levels and p-967 protein expression, but enhanced ASK1 and JNK mRNA levels as well as t-ASK1, p-845, t-JNK, and p-JNK proteins levels. And Up-regulation of LncRNA MEG3 promoted apoptosis while attenuating autophagy. The targeting relationship between miR-23a and the binding sites of LncRNA MEG3 and ASK1 was also confirmed with the dual luciferase reporter assay. And, the relationship between LncRNA MEG3 and miR-23a was observed as a negative feedback regulation, and changes in LncRNA MEG3 and miR-23a levels can alter the expression of ASK1/JNK axis in yaks GCs. In addition, FSH (10 μg/mL) or LH (100 μg/mL) ability to reverse the effects of LncRNA MEG3 on miR-23a levels and ASK1/JNK axis-mediated apoptosis and autophagy was verified in yak GCs. This is significantly beneficial for decreasing abnormal follicular atresia for yaks tertiary follicles.
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Affiliation(s)
- Xiaohong Han
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Yangyang Pan
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Jiangfeng Fan
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Meng Wang
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Libin Wang
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Jinglei Wang
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Seth Yaw Afedo
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Ling Zhao
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Yaying Wang
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Tian Zhao
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Tongxiang Zhang
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Rui Zhang
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Yan Cui
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Laboratory of Animal Anatomy & Tissue Embryology, Department of Basic Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Sijiu Yu
- Gansu Province Livestock Embryo Engineering Research Center, Department of Clinical Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Laboratory of Animal Anatomy & Tissue Embryology, Department of Basic Veterinary Medicine, Faculty of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China.
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9
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Alfradique VAP, Netto DLS, Alves SVP, Machado AF, Novaes CM, Penitente-Filho JM, Machado-Neves M, Lopes MS, Guimarães SEF. The impact of FSH stimulation and age on the ovarian and uterine traits and histomorphometry of prepubertal gilts. Domest Anim Endocrinol 2023; 83:106786. [PMID: 36848729 DOI: 10.1016/j.domaniend.2023.106786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 01/14/2023] [Accepted: 01/19/2023] [Indexed: 01/28/2023]
Abstract
This study investigated the effect of age and follicle stimulating hormone (FSH) treatment on the estradiol (E2) plasma concentration, ovarian follicle development, endometrial histomorphometry, and ultrasonographic parameters of the ovaries and uterus in prepubertal gilts. Thirty-five prepubertal gilts were grouped according to age (140 or 160 d), and within each age, gilts were allotted to receive 100 mg of FSH (treated; G140 + FSH [n = 10] and G160 + FSH [n = 7]) or saline solution (control; G140 + control [n = 10] and G160 + control [n = 8]). The total dose of FSH was divided into 6 similar doses administered every 8 h (days 0-2). Before and after FSH treatment, blood sample was collected, and transabdominal scanning of the ovaries and uterus was performed. Twenty-four hours after the last FSH injection, the gilts were slaughtered and their ovaries and uterus were processed for histological and histomorphometric analysis. The histomorphometric parameters of the uterus differed (P < 0.05) between prepubertal gilts at 160 d and 140 d of age. Moreover, changes (P < 0.05) in uterine and ovarian ultrasound images occurred between 140 and 160 d of age. Age and FSH treatment did not affect (P > 0.05) E2 plasma concentrations. Follicle stimulating hormone treatment did not affect (P > 0.05) the early stage of folliculogenesis in the prepubertal gilts; however, the number of early atretic follicles decreased (P < 0.05) after the FSH treatment. Follicle stimulating hormone administration increased (P < 0.05) the number of medium follicles and decreased (P < 0.05) the number of small follicles in 140 and 160 d old gilts. In the endometrium, luminal/glandular epithelium height and glandular diameter increased (P < 0.05) after FSH treatment. Thus, injections of 100 mg of FSH stimulate the endometrium epithelium and induce follicular growth to a medium follicle size without affecting the preantral stages in prepubertal gilts; also, the uterine macroscopic morphometry does not change from 140 to 160 d of age.
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Affiliation(s)
- V A P Alfradique
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil.
| | - D L Souza Netto
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - S V P Alves
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - A F Machado
- Departamento de Zootecnia, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - C M Novaes
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - J M Penitente-Filho
- Departamento de Veterinária, Universidade Federal de Viçosa, Av Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - M Machado-Neves
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil
| | - M S Lopes
- Topigs Norsvin - Brasil, Curitiba, PR, Brazil
| | - S E F Guimarães
- Departamento de Zootecnia, Universidade Federal de Viçosa, Av. Peter Henry Rolfs, Campus Universitário, CEP 36570-900, Viçosa, MG, Brazil.
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10
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Snider AP, Yake HK, Granger CD, Rosasco SL, McDaneld TG, Snelling WM, Chase CC, Miles JR, Lents CA, Quail LK, Rich JJ, Epperson KM, Crouse MS, Summers AF, Perry GA, Bennett GL, Cushman RA. Polymorphism of the follicle stimulating hormone receptor does not impact reproductive performance or in-vitro embryo production in beef heifers. Theriogenology 2023; 195:131-137. [DOI: 10.1016/j.theriogenology.2022.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 10/17/2022] [Accepted: 10/20/2022] [Indexed: 11/17/2022]
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Johnson GP, Onabanjo CGA, Hardy K, Butnev VY, Bousfield GR, Jonas KC. Follicle-Stimulating Hormone Glycosylation Variants Distinctly Modulate Pre-antral Follicle Growth and Survival. Endocrinology 2022; 163:6750033. [PMID: 36201606 PMCID: PMC9598563 DOI: 10.1210/endocr/bqac161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Indexed: 11/19/2022]
Abstract
Follicle-stimulating hormone (FSH) is a key endocrine regulator of ovarian function. FSH is secreted as 2 macroglycosylation variants: partially glycosylated FSH (FSH21/18) and fully glycosylated FSH (FSH24). FSH21/18 is more potent than FSH24 at binding to and activating the FSH receptor (R). The ratio of FSH21/18:FSH24 has been shown to change with age, with FSH21/18 predominant at reproductive prime, and FSH24 predominant during perimenopause/menopause. How these FSH glycosylation variants modulate ovarian follicle functions remains largely unknown. The aim of this study was to investigate the effect of FSH glycosylation variants of pre-antral follicle function. Pre-antral follicles were isolated from 3- to 5-week-old C57BL/6 mice and treated ±10 ng/mL FSH21/18, FSH24, a ratio of 80:20 FSH21/18:FSH24 (to mimic reproductive prime), 50:50 FSH21/18:FSH24 (perimenopause), or 20:80 FSH21/18:FSH24 (menopause) for up to 96 hours. FSH21/18 and 80:20 FSH21/18:FSH24 increased follicle growth, in comparison with control, contrasting with FSH24 and 20:80 FSH21/18:FSH24. Survival rates were decreased in follicles treated with FSH24 or 20:80 FSH21/18:FSH24, with follicles undergoing basement membrane rupture and oocyte extrusion, increased Caspase3 gene and protein expression, and decreased markers of cell proliferation in FSH24 or 20:80 FSH21/18:FSH24-treated follicles. Moreover, this correlated with differential regulation of key genes modulating follicular functions. Pharmacological inhibitors of key FSH signal pathways suggests FSH21/18 and FSH24 initiate different FSHR signal pathway activation, which may determine their differential effects on follicle growth and survival. These data suggest that the nature of FSH glycosylation modulates the follicular cellular environment to regulate follicle growth and survival and may underpin the increasing ovarian resistance to FSH observed during aging.
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Affiliation(s)
- Gillian P Johnson
- Department of Women and Children's Health, School of Life Course and Population Health Sciences, Kings College London, London SE1 1UL, UK
- Institute of Reproductive and Developmental Biology, Imperial College London, London W12 0NN, UK
| | - Caitlan G A Onabanjo
- Department of Women and Children's Health, School of Life Course and Population Health Sciences, Kings College London, London SE1 1UL, UK
| | - Kate Hardy
- Institute of Reproductive and Developmental Biology, Imperial College London, London W12 0NN, UK
| | - Viktor Y Butnev
- Department of Biological Sciences, Wichita State University, Wichita, KS 67260, USA
| | - George R Bousfield
- Department of Biological Sciences, Wichita State University, Wichita, KS 67260, USA
| | - Kim C Jonas
- Correspondence: Kim C. Jonas, MD, PhD, Department of Women and Children's Health, School of Life Course and Population Health Sciences, Kings College London, Guy's Campus, London, SE1 1UL, UK.
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12
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Liu XM, Chen F, Zhang F, Xi HT, Zhao JZ. Knockdown of Chk1 inhibits proliferation and promotes apoptosis in mouse granulosa cells and its regulation mechanism by miR-15a and miR-16. In Vitro Cell Dev Biol Anim 2022; 58:579-586. [PMID: 35915338 DOI: 10.1007/s11626-022-00705-7] [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: 04/06/2022] [Accepted: 06/26/2022] [Indexed: 11/05/2022]
Abstract
Checkpoint kinase 1 (Chk1) is a protein kinase which preserves the genome integrity, and works as an evolutionally conserved DNA damage response and cell cycle checkpoint. However, the functional roles and regulatory mechanism of Chk1 in mouse granulosa cells (GCs) have not been fully elucidated. In this study, by RNA interfering, Chk1 gene was knocked down in GCs. Knockdown of Chk1 inhibited proliferation and increased apoptosis of GCs (p < 0.05), respectively; in addition, cell cycle of GCs was arrested at S and G2/M phases. Further qRT-PCR results showed that cell cycle factors (Cyclin B1 and Cyclin D 1) and a marker gene of proliferation (PCNA) were downregulated (p < 0.001), while apoptotic factors (p53b, p21, caspase-3, and Bax) were upregulated (p < 0.01), which suggested that knockdown of Chk1 may inhibit proliferation, regulate cell cycle, and promote apoptosis at the transcriptional level in GCs. In vitro studies showed a negative correlation between Chk1 mRNA and miR-16 expression during follicular development. To elucidate the relationship between Chk1 and miR-15a/16, luciferase reporter plasmids were constructed and luciferase assays revealed that both miR-15a and miR-16 could bind to the 3' UTR of Chk1 mRNA, and significantly downregulate the protein level of Chk1 (p < 0.01), while miR-16, not miR-15a, could significantly decrease the mRNA level of Chk1 (p < 0.05). This result indicated that miR-16 directly induced Chk1 mRNA destabilization, while miR-15a regulated Chk1 expression through translational repression. Taken together, this study uncovered the roles of Chk1 in mouse granulosa cells and its regulation by miR-15a and miR-16 through different mechanisms.
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Affiliation(s)
- Xiao-Ming Liu
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Fang Chen
- Laboratory Animal Centre, Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Fan Zhang
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, People's Republic of China
| | - Hai-Tao Xi
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, People's Republic of China.
| | - Jun-Zhao Zhao
- Reproductive Medicine Centre, Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, People's Republic of China.
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13
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Pedroza GH, Lanzon LF, Rabaglino MB, Walker WL, Vahmani P, Denicol AC. Exposure to non-esterified fatty acids in vitro results in changes in the ovarian and follicular environment in cattle. Anim Reprod Sci 2022; 238:106937. [DOI: 10.1016/j.anireprosci.2022.106937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/21/2022] [Accepted: 01/30/2022] [Indexed: 02/08/2023]
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14
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Bernabò N, Di Berardino C, Capacchietti G, Peserico A, Buoncuore G, Tosi U, Crociati M, Monaci M, Barboni B. In Vitro Folliculogenesis in Mammalian Models: A Computational Biology Study. Front Mol Biosci 2021; 8:737912. [PMID: 34859047 PMCID: PMC8630647 DOI: 10.3389/fmolb.2021.737912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 10/04/2021] [Indexed: 11/27/2022] Open
Abstract
In vitro folliculogenesis (ivF) has been proposed as an emerging technology to support follicle growth and oocyte development. It holds a great deal of attraction from preserving human fertility to improving animal reproductive biotechnology. Despite the mice model, where live offspring have been achieved,in medium-sized mammals, ivF has not been validated yet. Thus, the employment of a network theory approach has been proposed for interpreting the large amount of ivF information collected to date in different mammalian models in order to identify the controllers of the in vitro system. The WoS-derived data generated a scale-free network, easily navigable including 641 nodes and 2089 links. A limited number of controllers (7.2%) are responsible for network robustness by preserving it against random damage. The network nodes were stratified in a coherent biological manner on three layers: the input was composed of systemic hormones and somatic-oocyte paracrine factors; the intermediate one recognized mainly key signaling molecules such as PI3K, KL, JAK-STAT, SMAD4, and cAMP; and the output layer molecules were related to functional ivF endpoints such as the FSH receptor and steroidogenesis. Notably, the phenotypes of knock-out mice previously developed for hub.BN indirectly corroborate their biological relevance in early folliculogenesis. Finally, taking advantage of the STRING analysis approach, further controllers belonging to the metabolic axis backbone were identified, such as mTOR/FOXO, FOXO3/SIRT1, and VEGF, which have been poorly considered in ivF to date. Overall, this in silico study identifies new metabolic sensor molecules controlling ivF serving as a basis for designing innovative diagnostic and treatment methods to preserve female fertility.
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Affiliation(s)
- Nicola Bernabò
- Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
- National Research Council, Institute of Biochemistry and Cell Biology, Rome, Italy
| | | | | | - Alessia Peserico
- Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
| | - Giorgia Buoncuore
- Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
| | - Umberto Tosi
- Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
| | - Martina Crociati
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
- Centre for Perinatal and Reproductive Medicine, University of Perugia, Perugia, Italy
| | - Maurizio Monaci
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
- Centre for Perinatal and Reproductive Medicine, University of Perugia, Perugia, Italy
| | - Barbara Barboni
- Unit of Basic and Applied Biosciences, University of Teramo, Teramo, Italy
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15
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Kehoe S, Jewgenow K, Johnston PR, Braun BC. Early preantral follicles of the domestic cat express gonadotropin and sex steroid signalling potential. Biol Reprod 2021; 106:95-107. [PMID: 34672344 DOI: 10.1093/biolre/ioab192] [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: 06/11/2021] [Revised: 09/29/2021] [Accepted: 12/10/2021] [Indexed: 11/13/2022] Open
Abstract
Key biomolecular processes which regulate primordial ovarian follicle dormancy and early folliculogenesis in mammalian ovaries are not fully understood. The domestic cat is a useful model to study ovarian folliculogenesis and is the most relevant for developing in vitro growth methods to be implemented in wild felid conservation breeding programs. Previously, RNA-sequencing of primordial, primary, and secondary follicle samples from domestic cat implicated ovarian steroidogenesis and steroid reception during follicle development. Here we aimed to identify which sex steroid biosynthesis and metabolism enzymes, gonadotropin receptors, and sex steroid receptors are present and may be potential regulators. Differential gene expression, functional annotation, and enrichment analyses were employed and protein localisation was studied too. Gene transcripts for PGR, PGRMC1, AR (steroid receptors), CYP11A1, CYP17A1, HSD17B1 and HSD17B17 (steroidogenic enzymes), and STS (steroid metabolising enzyme) were significantly differentially expressed (Q values of ≤0.05). Differential gene expression increased in all transcripts during follicle transitions apart from AR which decreased by the secondary stage. Immunohistochemistry localised FSHR and LHCGR to oocytes at each stage. PGRMC1 immunostaining was strongest in granulosa cells whereas AR was strongest in oocytes throughout each stage. Protein signals for steroidogenic enzymes were only detectable in secondary follicles. Products of these significantly differentially expressed genes may regulate domestic cat preantral folliculogenesis. In vitro growth could be optimised as all early follicles express gonadotropin and steroid receptors meaning hormone interaction and response may be possible. Protein expression analyses of early secondary follicles supported its potential for producing sex steroids.
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Affiliation(s)
- S Kehoe
- Department of Reproduction Biology, Leibniz-Institute for Zoo and Wildlife Research, Berlin, Germany
| | - K Jewgenow
- Department of Reproduction Biology, Leibniz-Institute for Zoo and Wildlife Research, Berlin, Germany
| | - P R Johnston
- Berlin Center for Genomics in Biodiversity Research BeGenDiv; Leibniz-Institute of Freshwater Ecology and Inland Fisheries; and Freie Universität Berlin, Institut für Biologie, Berlin, Germany
| | - B C Braun
- Department of Reproduction Biology, Leibniz-Institute for Zoo and Wildlife Research, Berlin, Germany
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16
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Recchia K, Jorge AS, Pessôa LVDF, Botigelli RC, Zugaib VC, de Souza AF, Martins DDS, Ambrósio CE, Bressan FF, Pieri NCG. Actions and Roles of FSH in Germinative Cells. Int J Mol Sci 2021; 22:10110. [PMID: 34576272 PMCID: PMC8470522 DOI: 10.3390/ijms221810110] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 12/21/2022] Open
Abstract
Follicle stimulating hormone (FSH) is produced by the pituitary gland in a coordinated hypothalamic-pituitary-gonadal (HPG) axis event, plays important roles in reproduction and germ cell development during different phases of reproductive development (fetal, neonatal, puberty, and adult life), and is consequently essential for fertility. FSH is a heterodimeric glycoprotein hormone of two dissociable subunits, α and β. The FSH β-subunit (FSHβ) function starts upon coupling to its specific receptor: follicle-stimulating hormone receptor (FSHR). FSHRs are localized mainly on the surface of target cells on the testis and ovary (granulosa and Sertoli cells) and have recently been found in testicular stem cells and extra-gonadal tissue. Several reproduction disorders are associated with absent or low FSH secretion, with mutation of the FSH β-subunit or the FSH receptor, and/or its signaling pathways. However, the influence of FSH on germ cells is still poorly understood; some studies have suggested that this hormone also plays a determinant role in the self-renewal of germinative cells and acts to increase undifferentiated spermatogonia proliferation. In addition, in vitro, together with other factors, it assists the process of differentiation of primordial germ cells (PGCLCs) into gametes (oocyte-like and SSCLCs). In this review, we describe relevant research on the influence of FSH on spermatogenesis and folliculogenesis, mainly in the germ cell of humans and other species. The possible roles of FSH in germ cell generation in vitro are also presented.
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Affiliation(s)
- Kaiana Recchia
- Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo 01001-010, Brazil; (K.R.); (F.F.B.)
| | - Amanda Soares Jorge
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, Brazil; (A.S.J.); (L.V.d.F.P.); (R.C.B.); (V.C.Z.); (D.d.S.M.); (C.E.A.)
| | - Laís Vicari de Figueiredo Pessôa
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, Brazil; (A.S.J.); (L.V.d.F.P.); (R.C.B.); (V.C.Z.); (D.d.S.M.); (C.E.A.)
| | - Ramon Cesar Botigelli
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, Brazil; (A.S.J.); (L.V.d.F.P.); (R.C.B.); (V.C.Z.); (D.d.S.M.); (C.E.A.)
- Department of Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-970, Brazil
| | - Vanessa Cristiane Zugaib
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, Brazil; (A.S.J.); (L.V.d.F.P.); (R.C.B.); (V.C.Z.); (D.d.S.M.); (C.E.A.)
| | - Aline Fernanda de Souza
- Department Biomedical Science, Ontary Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada;
| | - Daniele dos Santos Martins
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, Brazil; (A.S.J.); (L.V.d.F.P.); (R.C.B.); (V.C.Z.); (D.d.S.M.); (C.E.A.)
| | - Carlos Eduardo Ambrósio
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, Brazil; (A.S.J.); (L.V.d.F.P.); (R.C.B.); (V.C.Z.); (D.d.S.M.); (C.E.A.)
| | - Fabiana Fernandes Bressan
- Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo 01001-010, Brazil; (K.R.); (F.F.B.)
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, Brazil; (A.S.J.); (L.V.d.F.P.); (R.C.B.); (V.C.Z.); (D.d.S.M.); (C.E.A.)
| | - Naira Caroline Godoy Pieri
- Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, Brazil; (A.S.J.); (L.V.d.F.P.); (R.C.B.); (V.C.Z.); (D.d.S.M.); (C.E.A.)
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17
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Pan X, Li Q, Chen D, Gong W, Li N, Jiang Y, Zhang H, Chen Y, Yuan X. Alternative Splicing Dynamics of the Hypothalamus-Pituitary-Ovary Axis During Pubertal Transition in Gilts. Front Genet 2021; 12:592669. [PMID: 33995469 PMCID: PMC8120244 DOI: 10.3389/fgene.2021.592669] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 03/24/2021] [Indexed: 12/23/2022] Open
Abstract
The timing of puberty in mammals marks the point at which reproduction becomes possible. Abnormalities in the timing of puberty may exert a series of negative effects on subsequent health outcomes. Alternative splicing (AS) has not only emerged as a significant factor in the transcription of genes but it is also reported to play a role in the timing of puberty. However, to date, the changes and dynamics of AS during the onset of puberty is extremely seldom explored. In the present study, we used gilts as a research model to investigated the dynamics of AS and differentially expressed AS (DEAS) events within the hypothalamus-pituitary-ovary (HPO) axis across pre-, in-, and post-puberty. We detected 3,390, 6,098, and 9,085 DEAS events in the hypothalamus, pituitary, and ovary when compared across pre-, in-, and post-pubertal stages, respectively. Within the entire HPO axis, we also identified 22,889, 22,857, and 21,055 DEAS events in the pre-, in-, and post-pubertal stages, respectively. Further analysis revealed that the differentially spliced genes (DSGs) associated with staged DEAS events were likely to be enriched in the oxytocin signaling pathway, thyroid hormone signaling pathway, GnRH signaling pathway, and oocyte meiosis signaling pathway. The DSGs associated with DEAS events across the entire HPO axis were enriched in endocytosis signaling pathway, the MAPK signaling pathway, and the Rap1 signaling pathway. Moreover. the ASs of TAC1, TACR3, CYP19A1, ESR1, ESRRA, and FSHR were likely to regulate the functions of the certain HPO tissues during the onset of puberty. Collectively, the AS dynamics and DEAS events were comprehensively profiled in hypothalamus, pituitary, and ovary across the pre-, in-, and post-pubertal stages in pigs. These findings may enhance our knowledge of how puberty is regulated by AS and shed new light on the molecular mechanisms underlying the timing of puberty in mammals.
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Affiliation(s)
- Xiangchun Pan
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Qingnan Li
- State Key Laboratory of Biocontrol, Guangzhou Higher Education Mega Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Danxia Chen
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Wentao Gong
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Nian Li
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Yao Jiang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Hao Zhang
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Yaosheng Chen
- State Key Laboratory of Biocontrol, Guangzhou Higher Education Mega Center, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Xiaolong Yuan
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
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18
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Vo KCT, Kawamura K. In Vitro Activation Early Follicles: From the Basic Science to the Clinical Perspectives. Int J Mol Sci 2021; 22:ijms22073785. [PMID: 33917468 PMCID: PMC8038686 DOI: 10.3390/ijms22073785] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/29/2021] [Accepted: 04/03/2021] [Indexed: 12/16/2022] Open
Abstract
Development of early follicles, especially the activation of primordial follicles, is strictly modulated by a network of signaling pathways. Recent advance in ovarian physiology has been allowed the development of several therapies to improve reproductive outcomes by manipulating early folliculogenesis. Among these, in vitro activation (IVA) has been recently developed to extend the possibility of achieving genetically related offspring for patients with premature ovarian insufficiency and ovarian dysfunction. This method was established based on basic science studies of the intraovarian signaling pathways: the phosphoinositide 3-kinase (PI3K)/Akt and the Hippo signaling pathways. These two pathways were found to play crucial roles in folliculogenesis from the primordial follicle to the early antral follicle. Following the results of rodent experiments, IVA was implemented in clinical practice. There have been multiple recorded live births and ongoing pregnancies. Further investigations are essential to confirm the efficacy and safety of IVA before used widely in clinics. This review aimed to summarize the published literature on IVA and provide future perspectives for its improvement.
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