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Gu M, Wang Y, Yu Y. Ovarian fibrosis: molecular mechanisms and potential therapeutic targets. J Ovarian Res 2024; 17:139. [PMID: 38970048 PMCID: PMC11225137 DOI: 10.1186/s13048-024-01448-7] [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: 05/11/2024] [Accepted: 06/03/2024] [Indexed: 07/07/2024] Open
Abstract
Ovarian fibrosis, characterized by the excessive proliferation of ovarian fibroblasts and the accumulation of extracellular matrix (ECM), serves as one of the primary causes of ovarian dysfunction. Despite the critical role of ovarian fibrosis in maintaining the normal physiological function of the mammalian ovaries, research on this condition has been greatly underestimated, which leads to a lack of clinical treatment options for ovarian dysfunction caused by fibrosis. This review synthesizes recent research on the molecular mechanisms of ovarian fibrosis, encompassing TGF-β, extracellular matrix, inflammation, and other profibrotic factors contributing to abnormal ovarian fibrosis. Additionally, we summarize current treatment approaches for ovarian dysfunction targeting ovarian fibrosis, including antifibrotic drugs, stem cell transplantation, and exosomal therapies. The purpose of this review is to summarize the research progress on ovarian fibrosis and to propose potential therapeutic strategies targeting ovarian fibrosis for the treatment of ovarian dysfunction.
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Affiliation(s)
- Mengqing Gu
- State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, 100191, China
- Key Laboratory of Assisted Reproduction (Peking University), Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Ministry of Education, Beijing, 100191, China
- Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing, 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, 100191, China
| | - Yibo Wang
- State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, 100191, China.
- Key Laboratory of Assisted Reproduction (Peking University), Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Ministry of Education, Beijing, 100191, China.
- Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing, 100191, China.
- Institute of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.
| | - Yang Yu
- State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, 100191, China.
- Key Laboratory of Assisted Reproduction (Peking University), Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Ministry of Education, Beijing, 100191, China.
- Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing, 100191, China.
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, 100191, China.
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Martino NA, Picardi E, Ciani E, D’Erchia AM, Bogliolo L, Ariu F, Mastrorocco A, Temerario L, Mansi L, Palumbo V, Pesole G, Dell’Aquila ME. Cumulus Cell Transcriptome after Cumulus-Oocyte Complex Exposure to Nanomolar Cadmium in an In Vitro Animal Model of Prepubertal and Adult Age. BIOLOGY 2023; 12:biology12020249. [PMID: 36829526 PMCID: PMC9953098 DOI: 10.3390/biology12020249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/25/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023]
Abstract
Cadmium (Cd), a highly toxic pollutant, impairs oocyte fertilization, through oxidative damage on cumulus cells (CCs). This study analysed the transcriptomic profile of CCs of cumulus-oocyte complexes (COCs) from adult and prepubertal sheep, exposed to Cd nanomolar concentration during in vitro maturation. In both age-groups, CCs of matured oocytes underwent RNA-seq, data analysis and validation. Differentially expressed genes (DEGs) were identified in adult (n = 99 DEGs) and prepubertal (n = 18 DEGs) CCs upon Cd exposure. Transcriptomes of adult CCs clustered separately between Cd-exposed and control samples, whereas prepubertal ones did not as observed by Principal Component Analysis. The transcriptomic signature of Cd-induced CC toxicity was identified by gene annotation and literature search. Genes associated with previous studies on ovarian functions and/or Cd effects were confirmed and new genes were identified, thus implementing the knowledge on their involvement in such processes. Enrichment and validation analysis showed that, in adult CCs, Cd acted as endocrine disruptor on DEGs involved in hormone biosynthesis, cumulus expansion, regulation of cell signalling, growth and differentiation and oocyte maturation, whereas in prepubertal CCs, Cd affected DEGs involved in CC development and viability and CC-oocyte communications. In conclusion, these DEGs could be used as valuable non-invasive biomarkers for oocyte competence.
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Affiliation(s)
- Nicola Antonio Martino
- Department of Biosciences, Biotechnologies & Environment, University of Bari Aldo Moro, Via Edoardo Orabona, 70125 Bari, Italy
- Correspondence: ; Tel.: +39-0805443888
| | - Ernesto Picardi
- Department of Biosciences, Biotechnologies & Environment, University of Bari Aldo Moro, Via Edoardo Orabona, 70125 Bari, Italy
| | - Elena Ciani
- Department of Biosciences, Biotechnologies & Environment, University of Bari Aldo Moro, Via Edoardo Orabona, 70125 Bari, Italy
| | - Anna Maria D’Erchia
- Department of Biosciences, Biotechnologies & Environment, University of Bari Aldo Moro, Via Edoardo Orabona, 70125 Bari, Italy
| | - Luisa Bogliolo
- Department of Veterinary Medicine, University of Sassari, Via Vienna n. 2, 07100 Sassari, Italy
| | - Federica Ariu
- Department of Veterinary Medicine, University of Sassari, Via Vienna n. 2, 07100 Sassari, Italy
| | - Antonella Mastrorocco
- Department of Biosciences, Biotechnologies & Environment, University of Bari Aldo Moro, Via Edoardo Orabona, 70125 Bari, Italy
| | - Letizia Temerario
- Department of Biosciences, Biotechnologies & Environment, University of Bari Aldo Moro, Via Edoardo Orabona, 70125 Bari, Italy
| | - Luigi Mansi
- Department of Biosciences, Biotechnologies & Environment, University of Bari Aldo Moro, Via Edoardo Orabona, 70125 Bari, Italy
| | - Valeria Palumbo
- Department of Biosciences, Biotechnologies & Environment, University of Bari Aldo Moro, Via Edoardo Orabona, 70125 Bari, Italy
| | - Graziano Pesole
- Department of Biosciences, Biotechnologies & Environment, University of Bari Aldo Moro, Via Edoardo Orabona, 70125 Bari, Italy
| | - Maria Elena Dell’Aquila
- Department of Biosciences, Biotechnologies & Environment, University of Bari Aldo Moro, Via Edoardo Orabona, 70125 Bari, Italy
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Molecular Characterization of TGF-Beta Gene Family in Buffalo to Identify Gene Duplication and Functional Mutations. Genes (Basel) 2022; 13:genes13081302. [PMID: 35893038 PMCID: PMC9331672 DOI: 10.3390/genes13081302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/12/2022] [Accepted: 07/16/2022] [Indexed: 02/04/2023] Open
Abstract
The TGF-β superfamily is ubiquitously distributed from invertebrates to vertebrates with diverse cellular functioning such as cell adhesion, motility, proliferation, apoptosis, and differentiation. The present study aimed to characterize the TGF-β gene superfamily in buffalo through evolutionary, structural, and single nucleotide polymorphism (SNPs) analyses to find the functional effect of SNPs in selected genes. We detected 32 TGF-β genes in buffalo genome and all TGF-β proteins exhibited basic nature except INHA, INHBC, MSTN, BMP10, and GDF2, which showed acidic properties. According to aliphatic index, TGF-β proteins were thermostable but unstable in nature. Except for GDF1 and AMH, TGF-β proteins depicted hydrophilic nature. Moreover, all the detected buffalo TGF-β genes showed evolutionary conserved nature. We also identified eight segmental and one tandem duplication event TGF-β gene family in buffalo, and the ratio of Ka/Ks demonstrated that all the duplicated gene pairs were under selective pressure. Comparative amino acid analysis demonstrated higher variation in buffalo TGF-β gene family, as a total of 160 amino acid variations in all the buffalo TGF-β proteins were detected. Mutation analysis revealed that 13 mutations had an overall damaging effect that might have functional consequences on buffalo growth, folliculogenesis, or embryogenesis.
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Zheng X, Zheng Y, Qin D, Yao Y, Zhang X, Zhao Y, Zheng C. Regulatory Role and Potential Importance of GDF-8 in Ovarian Reproductive Activity. Front Endocrinol (Lausanne) 2022; 13:878069. [PMID: 35692411 PMCID: PMC9178251 DOI: 10.3389/fendo.2022.878069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/15/2022] [Indexed: 11/13/2022] Open
Abstract
Growth differentiation factor-8 (GDF-8) is a member of the transforming growth factor-beta superfamily. Studies in vitro and in vivo have shown GDF-8 to be involved in the physiology and pathology of ovarian reproductive functions. In vitro experiments using a granulosa-cell model have demonstrated steroidogenesis, gonadotrophin responsiveness, glucose metabolism, cell proliferation as well as expression of lysyl oxidase and pentraxin 3 to be regulated by GDF-8 via the mothers against decapentaplegic homolog signaling pathway. Clinical data have shown that GDF-8 is expressed widely in the human ovary and has high expression in serum of obese women with polycystic ovary syndrome. GDF-8 expression in serum changes dynamically in patients undergoing controlled ovarian hyperstimulation. GDF-8 expression in serum and follicular fluid is correlated with the ovarian response and pregnancy outcome during in vitro fertilization. Blocking the GDF-8 signaling pathway is a potential therapeutic for ovarian hyperstimulation syndrome and ovulation disorders in polycystic ovary syndrome. GDF-8 has a regulatory role and potential importance in ovarian reproductive activity and may be involved in folliculogenesis, ovulation, and early embryo implantation.
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Affiliation(s)
- Xiaoling Zheng
- Department of Pharmacy, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yongquan Zheng
- Department of Pharmacy, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Dongxu Qin
- Department of Pharmacy, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yao Yao
- Department of Pharmacy, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiao Zhang
- Department of Pharmacy, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yunchun Zhao
- Department of Pharmacy, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Caihong Zheng, ; Yunchun Zhao,
| | - Caihong Zheng
- Department of Pharmacy, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Reproductive Genetics (Ministry of Education) and Women’s Reproductive Health Laboratory of Zhejiang Province, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- *Correspondence: Caihong Zheng, ; Yunchun Zhao,
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Deciphering the mode of action and position of genetic variants impacting on egg number in broiler breeders. BMC Genomics 2020; 21:512. [PMID: 32709222 PMCID: PMC7379350 DOI: 10.1186/s12864-020-06915-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 07/15/2020] [Indexed: 12/14/2022] Open
Abstract
Background Aim of the present study was first to identify genetic variants associated with egg number (EN) in female broilers, second to describe the mode of their gene action (additive and/or dominant) and third to provide a list with implicated candidate genes for the trait. A number of 2586 female broilers genotyped with the high density (~ 600 k) SNP array and with records on EN (mean = 132.4 eggs, SD = 29.8 eggs) were used. Data were analyzed with application of additive and dominant multi-locus mixed models. Results A number of 7 additive, 4 dominant and 6 additive plus dominant marker-trait significant associations were detected. A total number of 57 positional candidate genes were detected within 50 kb downstream and upstream flanking regions of the 17 significant markers. Functional enrichment analysis pinpointed two genes (BHLHE40 and CRTC1) to be involved in the ‘entrainment of circadian clock by photoperiod’ biological process. Gene prioritization analysis of the positional candidate genes identified 10 top ranked genes (GDF15, BHLHE40, JUND, GDF3, COMP, ITPR1, ELF3, ELL, CRLF1 and IFI30). Seven prioritized genes (GDF15, BHLHE40, JUND, GDF3, COMP, ELF3, CRTC1) have documented functional relevance to reproduction, while two more prioritized genes (ITPR1 and ELL) are reported to be related to egg quality in chickens. Conclusions Present results have shown that detailed exploration of phenotype-marker associations can disclose the mode of action of genetic variants and help in identifying causative genes associated with reproductive traits in the species.
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Yang F, He L, Luo B, Ye F, Cui C, Yu X, Xu H, Zhao X, Yin H, Li D, Zhu Q, Wang Y. Effect of Bone Morphogenetic Protein 6 (BMP6) on Chicken Granulose Cells Proliferation and Progesterone Synthesis. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2019. [DOI: 10.1590/1806-9061-2018-0835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- F Yang
- Sichuan Agricultural University, China
| | - L He
- Sichuan Agricultural University, China
| | - B Luo
- Sichuan Agricultural University, China
| | - F Ye
- Sichuan Agricultural University, China
| | - C Cui
- Sichuan Agricultural University, China
| | - X Yu
- Sichuan Agricultural University, China
| | - H Xu
- Sichuan Agricultural University, China
| | - X Zhao
- Sichuan Agricultural University, China
| | - H Yin
- Sichuan Agricultural University, China
| | - D Li
- Sichuan Agricultural University, China
| | - Q Zhu
- Sichuan Agricultural University, China
| | - Y Wang
- Sichuan Agricultural University, China
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Regan SLP, Knight PG, Yovich JL, Leung Y, Arfuso F, Dharmarajan A. Involvement of Bone Morphogenetic Proteins (BMP) in the Regulation of Ovarian Function. VITAMINS AND HORMONES 2018; 107:227-261. [PMID: 29544632 DOI: 10.1016/bs.vh.2018.01.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Primordial germ cells migrate to the fetal gonads and proliferate during gestation to generate a fixed complement of primordial follicles, the so-called ovarian reserve. Primordial follicles comprise an oocyte arrested at the diplotene stage of meiosis, surrounded by a layer of pregranulosa cells. Activation of primordial follicles to grow beyond this arrested stage is of particular interest because, once activated, they are subjected to regulatory mechanisms involved in growth, selection, maturation, and ultimately, ovulation or atresia. The vast majority of follicles succumb to atresia and are permanently lost from the quiescent or growing pool of follicles. The bone morphogenetic proteins (BMPs), together with other intraovarian growth factors, are intimately involved in regulation of follicle recruitment, dominant follicle selection, ovulation, and atresia. Activation of primordial follicles appears to be a continuous process, and the number of small antral follicles at the beginning of the menstrual cycle provides an indirect indication of ovarian reserve. Continued antral follicle development during the follicular phase of the menstrual cycle is driven by follicle stimulating hormone (FSH) and luteinizing hormone (LH) in conjunction with many intraovarian growth factors and inhibitors interrelated in a complex web of regulatory balance. The BMP signaling system has a major intraovarian role in many species, including the human, in the generation of transcription factors that influence proliferation, steroidogenesis, cell differentiation, and maturation prior to ovulation, as well as formation of corpora lutea after ovulation. At the anterior pituitary level, BMPs also contribute to the regulation of gonadotrophin production.
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Affiliation(s)
- Sheena L P Regan
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia.
| | - Phil G Knight
- School of Biological Sciences, Hopkins Building, University of Reading, Reading, United Kingdom
| | - John L Yovich
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia; PIVET Medical Centre, Perth, WA, Australia
| | - Yee Leung
- Western Australian Gynaecologic Cancer Service, King Edward Memorial Hospital for Women, Perth, WA, Australia
| | - Frank Arfuso
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Arun Dharmarajan
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
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Regan SLP, Knight PG, Yovich JL, Leung Y, Arfuso F, Dharmarajan A. Granulosa Cell Apoptosis in the Ovarian Follicle-A Changing View. Front Endocrinol (Lausanne) 2018; 9:61. [PMID: 29551992 PMCID: PMC5840209 DOI: 10.3389/fendo.2018.00061] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 02/12/2018] [Indexed: 12/25/2022] Open
Abstract
Recent studies challenge the previous view that apoptosis within the granulosa cells of the maturing ovarian follicle is a reflection of aging and consequently a marker for poor quality of the contained oocyte. On the contrary, apoptosis within the granulosa cells is an integral part of normal development and has limited predictive capability regarding oocyte quality or the ensuing pregnancy rate in in vitro fertilization programs. This review article covers our revised understanding of the process of apoptosis within the ovarian follicle, its three phenotypes, the major signaling pathways underlying apoptosis as well as the associated mitochondrial pathways.
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Affiliation(s)
- Sheena L. P. Regan
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
- *Correspondence: Sheena L. P. Regan,
| | - Phil G. Knight
- School of Biological Sciences, University of Reading, Reading, United Kingdom
| | - John L. Yovich
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
- PIVET Medical Centre, Perth, WA, Australia
| | - Yee Leung
- Western Australian Gynaecologic Cancer Service, King Edward Memorial Hospital for Women, Perth, WA, Australia
| | - Frank Arfuso
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Arun Dharmarajan
- Stem Cell and Cancer Biology Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
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Wang Z, Qiu X, Kong D, Zhou X, Guo Z, Gao C, Ma S, Hao W, Jiang Z, Liu S, Zhang T, Meng X, Wang X. Comparative RNA-Seq analysis of differentially expressed genes in the testis and ovary of Takifugu rubripes. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2017; 22:50-57. [PMID: 28189874 DOI: 10.1016/j.cbd.2017.02.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/25/2017] [Accepted: 02/02/2017] [Indexed: 10/20/2022]
Abstract
Takifugu rubripes is a classical model organism for studying the role of gonad organogenesis in such physiological processes as fertilization, sex determination, and sexual development. To explicitly investigate the mechanism associated with gonad organogenesis in T. rubripes, we obtained 44.3 million and 55.2 million raw reads from the testis and ovary, respectively, by RNA-seq and from these, 18,523 genes were identified. A total of 680 differentially expressed genes were obtained from comparison transcriptome analysis between the testis and ovary, and of these, 556 genes were up-regulated in the testis, whereas only 124 genes were upregulated in the ovary. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis indicated that many of these genes encode proteins involved in signal transduction and gonad development. We mainly focused on the differentially expressed genes that have the potential to develop into the gonad. The generation of large scale transcriptomic data presented in this work would enrich the genetic resources of T. rubripes, which should be valuable to the comparative and evolutionary studies of teleosts.
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Affiliation(s)
- Zhicheng Wang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Xuemei Qiu
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China.
| | - Derong Kong
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Xiaoxu Zhou
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Zhongbao Guo
- Guangxi Academy of Fishery Sciences, Nanning 530021, China
| | - Changfu Gao
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Shuai Ma
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Weiwei Hao
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Zhiqiang Jiang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Shengcong Liu
- Dalian Tianzheng Industrial Corporation Limited, Dalian 116011, China
| | - Tao Zhang
- Dalian Tianzheng Industrial Corporation Limited, Dalian 116011, China
| | - Xuesong Meng
- Dalian Tianzheng Industrial Corporation Limited, Dalian 116011, China
| | - Xiuli Wang
- College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China.
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Abstract
The bone morphogenetic protein (BMP) family consists of several growth factor proteins that belong to the transforming growth factor-β (TGF-β) superfamily. BMPs bind to type I and type II serine-threonine kinase receptors, and transduce signals through the Smad signalling pathway. BMPs have been identified in mammalian ovaries, and functional studies have shown that they are involved in the regulation of oogenesis and folliculogenesis. This review summarizes the role of the BMP system during formation, growth and maturation of ovarian follicles in mammals.
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Akiyama I, Yoshino O, Osuga Y, Shi J, Takamura M, Harada M, Koga K, Hirota Y, Hirata T, Fujii T, Saito S, Kozuma S. The role of bone morphogenetic protein 6 in accumulation and regulation of neutrophils in the human ovary. Reprod Sci 2014; 21:772-7. [PMID: 24406789 DOI: 10.1177/1933719113518988] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Bone morphogenetic protein (BMP) cytokine is known to regulate ovulation, as BMP-6 null mice exhibit a decrease in the number of ovulatory follicles without effect on either the morphology or the dynamics of follicular development. In the present study, the role of BMP-6 in ovulatory process was investigated using human granulosa-lutein cells (GCs). Granulosa-lutein cells, obtained from in vitro fertilization patients, were cultured with BMP-6 followed by RNA extraction. The neutrophil-chemotactic activity of the supernatant of cultured GC was investigated. Bone morphogenetic protein 6 significantly increased growth-regulated oncogene α (GRO-α) messenger RNA (mRNA) and protein expression in GC. In the neutrophil-chemotaxis assay, the GC supernatant cultured with BMP-6 attracted more neutrophils than control samples, which was negated with anti-GRO-α neutralizing antibody. Bone morphogenetic protein 6 also suppressed the relative expression of the protease inhibitors, secretory leukocyte peptidase inhibitor, and whey acid protein 14 mRNA in GC. Bone morphogenetic protein 6 might play a role in ovulation by increasing the accumulation of neutrophils in the ovulatory follicle and suppressing the effect of protease inhibitors.
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Affiliation(s)
- Ikumi Akiyama
- 1Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
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Field SL, Dasgupta T, Cummings M, Orsi NM. Cytokines in ovarian folliculogenesis, oocyte maturation and luteinisation. Mol Reprod Dev 2013; 81:284-314. [DOI: 10.1002/mrd.22285] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 11/18/2013] [Indexed: 01/22/2023]
Affiliation(s)
- Sarah L Field
- Women's Health Research Group; Leeds Institute of Cancer; Anatomy and Pathology; Wellcome Trust Brenner Building; St James's University Hospital; Leeds UK
| | - Tathagata Dasgupta
- Department of Systems Biology; Harvard Medical School; 200 Longwood Avenue Boston Massachusetts
| | - Michele Cummings
- Women's Health Research Group; Leeds Institute of Cancer; Anatomy and Pathology; Wellcome Trust Brenner Building; St James's University Hospital; Leeds UK
| | - Nicolas M. Orsi
- Women's Health Research Group; Leeds Institute of Cancer; Anatomy and Pathology; Wellcome Trust Brenner Building; St James's University Hospital; Leeds UK
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Akiyama I, Yoshino O, Osuga Y, Shi J, Hirota Y, Hirata T, Harada M, Koga K, Fujimoto A, Yano T, Taketani Y. The localization and regulation of proprotein convertase subtilisin/kexin (PCSK) 6 in human ovary. Am J Reprod Immunol 2012; 68:491-8. [PMID: 22935039 DOI: 10.1111/aji.12003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2012] [Accepted: 07/09/2012] [Indexed: 11/28/2022] Open
Abstract
PROBLEM The aim of this study is to evaluate the expression and regulation of proprotein convertase subtilisin/kexin (PCSK) 6, which is known to be an important factor in the production of bone morphogenetic protein (BMP) cytokines in human ovary. METHOD OF STUDY The localization of PCSK 6 protein in normal human ovaries was examined by immunohistochemistry. Human granulosa cells (GC), obtained from 34 patients undergoing ovarian stimulation for in vitro fertilization, were cultured with BMP-2, BMP-6, BMP-7, BMP-15, growth differentiation factor (GDF)-9, and activin-A with or without FSH. PCSK 6 mRNA expression level was evaluated by quantitative real-time reverse transcription and polymerase chain reaction (RT-PCR). RESULTS An immunohistochemistry study revealed that GC expressed PCSK 6 throughout follicular development, beginning in the primary follicle stage, while oocytes expressed PCSK 6 from the primordial follicle stage onwards. An in vitro study demonstrated that BMP-2, BMP-6, BMP-7, and BMP-15, not activin-A and GDF-9, decreased PCSK 6 gene expression in human GC. FSH induced PCSK 6 mRNA in the presence of activin-A or GDF-9. GDF-3, which is an inhibitor of BMP cytokines, also induced PCSK 6 mRNA expression. CONCLUSIONS PCSK 6, which is a critical factor to produce BMP cytokines, was suppressed with BMP stimulation in human GC, suggesting the presence of a negative feedback system in the follicular development process.
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Affiliation(s)
- Ikumi Akiyama
- Department of Obstetrics and Gynecology, University of Tokyo, Tokyo 113-8655, Japan
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