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Takahashi T, Ogiwara K. cAMP signaling in ovarian physiology in teleosts: A review. Cell Signal 2023; 101:110499. [PMID: 36273754 DOI: 10.1016/j.cellsig.2022.110499] [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: 08/26/2022] [Revised: 10/11/2022] [Accepted: 10/15/2022] [Indexed: 11/30/2022]
Abstract
Ovarian function in teleosts, like in other vertebrates, is regulated by two distinct gonadotropins, follicle-stimulating hormone (FSH) and luteinizing hormone (LH). Gonadotropin effects are mediated by membrane-bound G protein-coupled receptors localized on the surface of follicle cells. Gonadotropin receptor activation results in increased intracellular cAMP, the most important second cellular signaling molecule. FSH stimulation induces the production of 17β-estradiol in the cells of growing follicles to promote vitellogenesis in oocytes. In contrast, in response to LH, fully grown post-vitellogenic follicles gain the ability to synthesize maturation-inducing steroids, which induce meiotic resumption and ovulation. All these events were induced downstream of cAMP. In this review, we summarize studies addressing the role of the cAMP pathway in gonadotropin-induced processes in teleost ovarian follicles. Furthermore, we discuss future problems concerning cAMP signaling in relation to teleost ovarian function and the differences and similarities in the gonadotropin-induced cAMP signaling pathways between mammals and teleosts.
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Affiliation(s)
- Takayuki Takahashi
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Katsueki Ogiwara
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
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2
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Xu D, Jiang X, Wang Y, Song S. Liver Receptor homolog-1 Regulates Apoptosis of Bovine Ovarian Granulosa Cells by Progestogen Receptor Signaling Pathway. Animals (Basel) 2022; 12:ani12091213. [PMID: 35565639 PMCID: PMC9104996 DOI: 10.3390/ani12091213] [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: 03/22/2022] [Revised: 04/29/2022] [Accepted: 05/07/2022] [Indexed: 12/04/2022] Open
Abstract
The purpose of the present investigation was to assess the function of LRH-1 on GCs and the mechanisms involved. Here, LRH- was highly expressed in the bovine GCs of atretic follicles. Treatment with 50 μM of LRH-1 agonist (DLPC) significantly induced the expression of LRH-1 (p < 0.05). In particular, LRH-1 activation blocked the progestogen receptor signaling pathway via downregulating progesterone production and progestogen receptor levels (p < 0.05), but had no effect on 17 beta-estradiol synthesis. Meanwhile, LRH-1 activation promoted the apoptosis of GCs and increased the activity of caspase 3 (p < 0.05). Importantly, upregulating the progestogen receptor signaling pathway with progestogen could attenuate the LRH-1-induced proapoptotic effect. Moreover, treatment with progestogen decreased the activity of the proapoptotic gene caspase 3 and increased the expression of antiapoptotic gene Bcl2 in LRH-1 activated GCs (p < 0.05). Taken together, these results demonstrate that LRH-1 might be dependent on the progestogen receptor signaling pathway to modulate bovine follicular atresia.
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Affiliation(s)
- Dejun Xu
- Chongqing Key Laboratory of Herbivore Science, College of Animal Science and Technology, Southwest University, Chongqing 400715, China; (Y.W.); (S.S.)
- Correspondence:
| | - Xiaohan Jiang
- College of Animal Science and Technology, Northwest A&F University, No. 3 Taicheng Road, Xianyang 712100, China;
| | - Yukun Wang
- Chongqing Key Laboratory of Herbivore Science, College of Animal Science and Technology, Southwest University, Chongqing 400715, China; (Y.W.); (S.S.)
| | - Shuaifei Song
- Chongqing Key Laboratory of Herbivore Science, College of Animal Science and Technology, Southwest University, Chongqing 400715, China; (Y.W.); (S.S.)
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Ding Z, Duan H, Ge W, Lv J, Zeng J, Wang W, Niu T, Hu J, Zhang Y, Zhao X. Regulation of progesterone during follicular development by FSH and LH in sheep. Anim Reprod 2022; 19:e20220027. [PMID: 35847559 PMCID: PMC9276014 DOI: 10.1590/1984-3143-ar2022-0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 06/14/2022] [Indexed: 12/01/2022] Open
Abstract
Progesterone (P4) can participate in the development of female mammalian antral follicles through nuclear receptor (PGR). In this experiment, the differences of P4 synthesis and PGR expression in different developmental stages of sheep antral follicles (large > 5mm, medium 2-5mm, small < 2mm) were detected by enzyme-linked immunosorbent assay, immunohistochemistry, qRT-PCR and Western blotting. Secondly, sheep follicular granulosa cells were cultured in vitro. The effects of different concentrations of FSH and LH on P4 synthesis and PGR expression were studied. The results showed that acute steroid regulatory protein (StAR), cholesterol side chain lyase (P450scc) and 3β Hydroxysteroid dehydrogenase (3β-HSD) and PGR were expressed in antral follicles, and with the development of antral follicles in sheep, StAR, P450scc and the expression of 3β-HSD and PGR increased significantly. In vitro experiments showed that FSH and LH alone or together treatment could regulate P4 secretion and PGR expression in sheep follicular granulosa cells to varying degrees, hint P4 and PGR by FSH and LH, and LH was the main factor. Our results supplement the effects of FSH and LH on the regulation of P4 synthesis during follicular development, which provides new data for further study of steroid synthesis and function in follicular development.
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Affiliation(s)
- Ziqiang Ding
- Gansu Agricultural University, China; Gansu Key Laboratory of Animal Generational Physiology, China
| | - Hongwei Duan
- Gansu Agricultural University, China; Gansu Key Laboratory of Animal Generational Physiology, China
| | - Wenbo Ge
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS, China
| | - Jianshu Lv
- Gansu Agricultural University, China; Gansu Key Laboratory of Animal Generational Physiology, China
| | - Jianlin Zeng
- Gansu Agricultural University, China; Gansu Key Laboratory of Animal Generational Physiology, China
| | - Wenjuan Wang
- Gansu Agricultural University, China; Gansu Key Laboratory of Animal Generational Physiology, China
| | - Tian Niu
- Gansu Agricultural University, China
| | - Junjie Hu
- Gansu Agricultural University, China; Gansu Key Laboratory of Animal Generational Physiology, China
| | - Yong Zhang
- Gansu Agricultural University, China; Gansu Key Laboratory of Animal Generational Physiology, China
| | - Xingxu Zhao
- Gansu Agricultural University, China; Gansu Key Laboratory of Animal Generational Physiology, China
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Wasti S, Sah N, Kuehu DL, Kim YS, Jha R, Mishra B. Expression of follistatin is associated with egg formation in the oviduct of laying hens. Anim Sci J 2020; 91:e13396. [PMID: 32468659 DOI: 10.1111/asj.13396] [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: 05/01/2019] [Revised: 03/20/2020] [Accepted: 04/01/2020] [Indexed: 12/15/2022]
Abstract
The objective of this study was to examine the expression profiles of follistatin (FST) and its associated molecules (MSTN, INHA, INHBB, INHBA, ACVR2A, and ACVR2B) in the oviduct of laying hens at 3 hr and 20 hr post-ovulation (p.o., n = 5; 35 weeks old), molting (n = 5; 60 weeks old), and non-laying (n = 4; 35-60 weeks old) hens and also to localize the FST by using immunohistochemistry assay. Expression of FST was significantly higher (p < .05), and MSTN was lower in the uterus of laying hens around 15-20 hr p.o. (during eggshell formation), however, their expressions in the magnum remain unchanged across different physiological stages of hens. FST was mainly expressed in the luminal and glandular epithelium of the uterine tissues, and their expression intensity was highest in laying hens during the eggshell mineralization. There was a relatively increased expression of INHA in the magnum of laying hens around 3 hr p.o. as compared to non-laying and molting hens. At the same time (3 hr p.o.), there was a significant (p < .05) decrease in the expression of the INHBB, ACVR2A, and ACV2B. These results indicate that follistatin may regulate the differentiation of uterine luminal and glandular epithelium during eggshell biomineralization.
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Affiliation(s)
- Sanjeev Wasti
- Department of Human Nutrition Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Nirvay Sah
- Department of Human Nutrition Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Donna L Kuehu
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Yong S Kim
- Department of Human Nutrition Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Rajesh Jha
- Department of Human Nutrition Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Birendra Mishra
- Department of Human Nutrition Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, HI, USA
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Duffy DM, Ko C, Jo M, Brannstrom M, Curry TE. Ovulation: Parallels With Inflammatory Processes. Endocr Rev 2019; 40:369-416. [PMID: 30496379 PMCID: PMC6405411 DOI: 10.1210/er.2018-00075] [Citation(s) in RCA: 240] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 11/18/2018] [Indexed: 12/14/2022]
Abstract
The midcycle surge of LH sets in motion interconnected networks of signaling cascades to bring about rupture of the follicle and release of the oocyte during ovulation. Many mediators of these LH-induced signaling cascades are associated with inflammation, leading to the postulate that ovulation is similar to an inflammatory response. First responders to the LH surge are granulosa and theca cells, which produce steroids, prostaglandins, chemokines, and cytokines, which are also mediators of inflammatory processes. These mediators, in turn, activate both nonimmune ovarian cells as well as resident immune cells within the ovary; additional immune cells are also attracted to the ovary. Collectively, these cells regulate proteolytic pathways to reorganize the follicular stroma, disrupt the granulosa cell basal lamina, and facilitate invasion of vascular endothelial cells. LH-induced mediators initiate cumulus expansion and cumulus oocyte complex detachment, whereas the follicular apex undergoes extensive extracellular matrix remodeling and a loss of the surface epithelium. The remainder of the follicle undergoes rapid angiogenesis and functional differentiation of granulosa and theca cells. Ultimately, these functional and structural changes culminate in follicular rupture and oocyte release. Throughout the ovulatory process, the importance of inflammatory responses is highlighted by the commonalities and similarities between many of these events associated with ovulation and inflammation. However, ovulation includes processes that are distinct from inflammation, such as regulation of steroid action, oocyte maturation, and the eventual release of the oocyte. This review focuses on the commonalities between inflammatory responses and the process of ovulation.
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Affiliation(s)
- Diane M Duffy
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - CheMyong Ko
- Department of Comparative Biosciences, University of Illinois Urbana Champaign, Urbana, Illinois
| | - Misung Jo
- Department of Obstetrics and Gynecology, University of Kentucky, Lexington, Kentucky
| | - Mats Brannstrom
- Department of Obstetrics and Gynecology, University of Gothenburg, Gothenburg, Sweden.,Stockholm IVF, Stockholm, Sweden
| | - Thomas E Curry
- Department of Obstetrics and Gynecology, University of Kentucky, Lexington, Kentucky
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Choi Y, Park JY, Wilson K, Rosewell KL, Brännström M, Akin JW, Curry TE, Jo M. The expression of CXCR4 is induced by the luteinizing hormone surge and mediated by progesterone receptors in human preovulatory granulosa cells. Biol Reprod 2018; 96:1256-1266. [PMID: 28595291 DOI: 10.1093/biolre/iox054] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 06/05/2017] [Indexed: 12/18/2022] Open
Abstract
The chemokine CXC motif ligand 12 (CXCL12) and its cognate receptor, CXCR4, have been implicated in the ovulatory process in various animal models. However, little is known about the expression and regulation of CXCL12 and CXCR4 and their functions during the ovulatory period in the human ovary. In this study, we characterized the expression patterns of CXCL12 and CXCR4 in preovulatory follicles collected before the luteinizing hormone (LH) surge and at defined hours after hCG administration in women with the regular menstrual cycle. The levels of mRNA and protein for CXCR4 were increased in granulosa cells of late ovulatory follicles, whereas CXCL12 expression was constant in follicles throughout the ovulatory period. Both CXCR4 and CXCL12 were localized to a subset of leukocytes around and inside the vasculature of human preovulatory follicles. Using a human granulosa cell culture model, the regulatory mechanisms and functions of CXCL12 and CXCR4 expression were investigated. Human chorionic gonadotropin (hCG) stimulated CXCR4 expression, whereas CXCL12 expression was not affected, mimicking in vivo expression patterns. Both RU486 (progesterone receptor antagonist) and CoCl2 (HIFs activator) blocked the hCG-induced increase in CXCR4 expression, whereas AG1478 (EGFR inhibitor) had no effect. The treatment with CXCL12 had no effect on granulosa cell viability but decreased hCG-stimulated CXCR4 expression.
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Affiliation(s)
- Yohan Choi
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Ji Yeon Park
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Kalin Wilson
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Katherine L Rosewell
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Mats Brännström
- Department of Obstetrics and Gynecology, University of Gothenburg, Gothenburg, and Stockholm IVF, Stockholm, Sweden
| | - James W Akin
- Bluegrass Fertility Center, Lexington, Kentucky, USA
| | - Thomas E Curry
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Misung Jo
- Department of Obstetrics and Gynecology, University of Kentucky College of Medicine, Lexington, Kentucky, USA
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The Effect of Steroid Hormones on Ovarian Follicle Development. VITAMINS AND HORMONES 2018; 107:155-175. [DOI: 10.1016/bs.vh.2018.01.013] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Ogiwara K, Takahashi T. Involvement of the nuclear progestin receptor in LH-induced expression of membrane type 2-matrix metalloproteinase required for follicle rupture during ovulation in the medaka, Oryzias latipes. Mol Cell Endocrinol 2017; 450:54-63. [PMID: 28416325 DOI: 10.1016/j.mce.2017.04.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 04/12/2017] [Accepted: 04/12/2017] [Indexed: 11/16/2022]
Abstract
Hormonal regulation of the expression of Mmp15, a proteolytic enzyme indispensable for ovulation in the teleost medaka, was investigated. In an in vitro culture system using preovulatory follicles, Mmp15 expression and ovulation were induced in the presence of recombinant luteinizing hormone (rLh). Both rLh-induced Mmp15 expression and ovulation were 17α, 20β-dihydroxy-4-pregnen-3-one-dependent, suggesting the involvement of a nuclear progestin receptor (Pgr). In vitro follicle ovulation and Mmp15 expression were reduced by treatment with the Pgr antagonist RU-486. Like Pgr, the transcription factor CCAAT/enhancer-binding protein β (Cebpb) was induced by rLh. ChIP analyses indicated that Pgr and Cebpb bound to the mmp15 promoter region. These results indicate that the rLh-induced expression of Mmp15 is mediated by Pgr and Cebpb. A differential timing of expression of Pgr and Cebpb in the preovulatory follicles appears to explain the considerably long time-lag from the pgr gene activation to mmp15 gene expression.
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Affiliation(s)
- Katsueki Ogiwara
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Takayuki Takahashi
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.
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Neunzig J, Milhim M, Schiffer L, Khatri Y, Zapp J, Sánchez-Guijo A, Hartmann MF, Wudy SA, Bernhardt R. The steroid metabolite 16(β)-OH-androstenedione generated by CYP21A2 serves as a substrate for CYP19A1. J Steroid Biochem Mol Biol 2017; 167:182-191. [PMID: 28065637 DOI: 10.1016/j.jsbmb.2017.01.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 01/02/2017] [Accepted: 01/03/2017] [Indexed: 12/29/2022]
Abstract
The 21-hydroxylase (CYP21A2) is a steroidogenic enzyme crucial for the synthesis of mineralo- and glucocorticoids. It is described to convert progesterone as well as 17-OH-progesterone, through a hydroxylation at position C21, into 11-deoxycorticosterone (DOC) and 11-deoxycortisol (RSS), respectively. In this study we unraveled CYP21A2 to have a broader steroid substrate spectrum than assumed. Utilizing a reconstituted in vitro system, consisting of purified human CYP21A2 and human cytochrome P450 reductase (CPR) we demonstrated that CYP21A2 is capable to metabolize DOC, RSS, androstenedione (A4) and testosterone (T). In addition, the conversion of A4 rendered a product whose structure was elucidated through NMR spectroscopy, showing a hydroxylation at position C16-beta. The androgenic properties of this steroid metabolite, 16(β)-OH-androstenedione (16bOHA4), were investigated and compared with A4. Both steroid metabolites were shown to be weak agonists for the human androgen receptor. Moreover, the interaction of 16bOHA4 with the aromatase (CYP19A1) was compared to that of A4, indicating that the C16 hydroxyl group does not influence the binding with CYP19A1. In contrast, the elucidation of the kinetic parameters showed an increased Km and decreased kcat value resulting in a 2-fold decreased catalytic efficiency compared to A4. These findings were in accordance with our docking studies, revealing a similar binding conformation and distance to the heme iron of both steroids. Furthermore, the product of 16bOHA4, presumably 16-hydroxy-estrone (16bOHE1), was investigated with regard to its estrogenic activity, which was negligible compared to estradiol and estrone. Finally, 16bOHA4 was found to be present in a patient with 11-hydroxylase deficiency and in a patient with an endocrine tumor. Taken together, this study provides novel information on the steroid hormone biosynthesis and presents a new method to detect further potential relevant novel steroid metabolites.
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Affiliation(s)
- J Neunzig
- Department of Biochemistry, Faculty of Technical and Natural Sciences III, Saarland University, 66123 Saarbrücken, Germany
| | - M Milhim
- Department of Biochemistry, Faculty of Technical and Natural Sciences III, Saarland University, 66123 Saarbrücken, Germany
| | - L Schiffer
- Department of Biochemistry, Faculty of Technical and Natural Sciences III, Saarland University, 66123 Saarbrücken, Germany
| | - Y Khatri
- Department of Biochemistry, Faculty of Technical and Natural Sciences III, Saarland University, 66123 Saarbrücken, Germany
| | - J Zapp
- Institute of Pharmaceutical Biology, Faculty of Technical and Natural Sciences III, Saarland University, 66123 Saarbrücken, Germany
| | - A Sánchez-Guijo
- Steroid Research & Mass Spectrometry Unit, Division of Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus Liebig University, 35392 Giessen, Germany
| | - M F Hartmann
- Steroid Research & Mass Spectrometry Unit, Division of Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus Liebig University, 35392 Giessen, Germany
| | - S A Wudy
- Steroid Research & Mass Spectrometry Unit, Division of Pediatric Endocrinology & Diabetology, Center of Child and Adolescent Medicine, Justus Liebig University, 35392 Giessen, Germany
| | - R Bernhardt
- Department of Biochemistry, Faculty of Technical and Natural Sciences III, Saarland University, 66123 Saarbrücken, Germany.
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