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Nadri P, Nadri T, Gholami D, Zahmatkesh A, Hosseini Ghaffari M, Savvulidi Vargova K, Georgijevic Savvulidi F, LaMarre J. Role of miRNAs in assisted reproductive technology. Gene 2024; 927:148703. [PMID: 38885817 DOI: 10.1016/j.gene.2024.148703] [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: 01/10/2024] [Revised: 06/11/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
Cellular proteins and the mRNAs that encode them are key factors in oocyte and sperm development, and the mechanisms that regulate their translation and degradation play an important role during early embryogenesis. There is abundant evidence that expression of microRNAs (miRNAs) is crucial for embryo development and are highly involved in regulating translation during oocyte and early embryo development. MiRNAs are a group of short (18-24 nucleotides) non-coding RNA molecules that regulate post-transcriptional gene silencing. The miRNAs are secreted outside the cell by embryos during preimplantation embryo development. Understanding regulatory mechanisms involving miRNAs during gametogenesis and embryogenesis will provide insights into molecular pathways active during gamete formation and early embryo development. This review summarizes recent findings regarding multiple roles of miRNAs in molecular signaling, plus their transport during gametogenesis and embryo preimplantation.
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Affiliation(s)
- Parisa Nadri
- Department of Animal Science, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Touba Nadri
- Department of Animal Science, College of Agriculture, Urmia University, Urmia, Iran; Department of Animal Science, College of Agriculture, Tehran University, Karaj, Iran.
| | - Dariush Gholami
- Department of Microbial Biotechniligy, Faculty of Biotechnology, Amol University of Special Modern Technologies, Amol, Iran
| | - Azadeh Zahmatkesh
- Department of Anaerobic Vaccine Research and Production, Razi Vaccine and Serum Research Institute (RVSRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | | | - Karin Savvulidi Vargova
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Filipp Georgijevic Savvulidi
- Department of Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University, Prague, Kamýcká, Czech Republic
| | - Jonathan LaMarre
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Canada
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2
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Shafienia H, Hoseini SM, Khalili MA, Heydari L, Sheikhha MH, Montazeri F. The possible regulatory role of miR-514 and miR-642b in cumulus cells on the oocyte maturation in patients with polycystic ovary syndrome. Reprod Biol 2024; 24:100863. [PMID: 38367330 DOI: 10.1016/j.repbio.2024.100863] [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: 09/28/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/19/2024]
Abstract
Polycystic ovary syndrome is a common endocrine disorder in reproductive-age women. Accordingly, abnormal microenvironment may negatively influence oocyte developmental competence as a result of the altered expression profile of cumulus cells (CCs), mainly the key players of oocyte maturation, such as epidermal growth factor receptor (EGFR) and prostaglandin E receptor-2 (PTGER2). This study aimed to examine the expression levels of miR-514, miR-642b, and their candidate target genes (EGFR and PTGER2, respectively) in CCs of immature and mature oocytes in patients with PCOS. A total of 40 oocytes at germinal vesicle (GV) and 40 oocytes at metaphase II (MII) stages were retrieved from 30 PCOS women. Quantitative real-time PCR was performed to analyze the expression level of miR-514, miR-642b, EGFR, and PTGER2 in cumulus cells (CCS) of each oocyte. The expression level of miRNAs and their candidate target genes were compared between CCs of GV and MII oocytes. Our study suggests an inverse relationship exists between the expression levels of miR-514 and EGFR, and miR-642b and PTGER2. Furthermore, we observed that CCs of GV oocytes had higher levels of EGFR and PTGER2 mRNA and lower levels of miR-514 and miR-642b expression compared to those of MII oocytes. The present study demonstrated that miR-514 and miR-642b can regulate oocyte development by targeting EGFR and PTGER2, respectively. Therefore, examination of these miRNAs in CCs could be promising parameters to predict oocyte competence in PCOS patients.
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Affiliation(s)
- Hanieh Shafienia
- Abortion Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Seyed Mehdi Hoseini
- Biotechnology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Mohammad Ali Khalili
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Leila Heydari
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Mohammad Hasan Sheikhha
- Biotechnology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran.
| | - Fateme Montazeri
- Abortion Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran.
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Arefnezhad R, Roghani-Shahraki H, Motedayyen H, Rezaei Tazangi F. Function of MicroRNAs in Normal and Abnormal Ovarian Activities: A Review Focus on MicroRNA-21. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2024; 18:94-99. [PMID: 38368510 PMCID: PMC10875309 DOI: 10.22074/ijfs.2023.1985792.1415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/28/2023] [Accepted: 07/22/2023] [Indexed: 02/19/2024]
Abstract
Some failures in ovary function, like folliculogenesis and oogenesis, can give rise to various infertility-associated problems, including polycystic ovary syndrome (PCOS) and premature ovarian insufficiency (POI). PCOS influences 8 to 20% of women; while POI occurs in at least 1% of all women. Regrettably, the current therapies for these diseases have not sufficiently been effective, and finding a suitable strategy is still a puzzle. One of the helpful strategies for managing and treating these disorders is understanding the contributing pathogenesis and mechanisms. Recently, it has been declared that abnormal expression of microRNAs (miRNAs), as a subset of non-coding RNAs, is involved in the pathogenesis of reproductive diseases. Among the miRNAs, the roles of miRNA-21 in the pathogenesis of PCOS and POI have been highlighted in some documents; hence, the purpose of this mini-review was to summarize the evidences in conjunction with the functions of this miRNA and other effective microRNAs in the normal or abnormal functions of the ovary (i.e., PCOS and POI) with a mechanistic insight.
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Affiliation(s)
- Reza Arefnezhad
- Coenzyme R Research Institute, Tehran, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Hossein Motedayyen
- Autoimmune Diseases Research Center, Shahid Beheshti Hospital, Kashan University of Medical Sciences, Kashan, Iran.
| | - Fatemeh Rezaei Tazangi
- Department of Anatomy, Faculty of Medicine, Fasa University of Medical Sciences, Fasa, Iran
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4
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Sgueglia G, Longobardi S, Valerio D, Campitiello MR, Colacurci N, Di Pietro C, Battaglia R, D'Hooghe T, Altucci L, Dell'Aversana C. The impact of epigenetic landscape on ovarian cells in infertile older women undergoing IVF procedures. Clin Epigenetics 2023; 15:76. [PMID: 37143127 PMCID: PMC10161563 DOI: 10.1186/s13148-023-01490-0] [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: 02/28/2023] [Accepted: 04/24/2023] [Indexed: 05/06/2023] Open
Abstract
The constant decline in fertility and older reproductive age is the major cause of low clinical pregnancy rates in industrialised countries. Epigenetic mechanisms impact on proper embryonic development in women undergoing in vitro fertilisation (IVF) protocols. Here, we describe the main epigenetic modifications that may influence female reproduction and could affect IVF success.
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Affiliation(s)
- Giulia Sgueglia
- Department of Precision Medicine, University of Campania 'Luigi Vanvitelli', Programma di Epigenetica Medica, Azienda Ospedaliera Universitaria, Naples, Italy
| | | | - Domenico Valerio
- Outpatient Fertility Unit, University of Campania 'Luigi Vanvitelli', 80138, Naples, Italy
| | - Maria Rosaria Campitiello
- Department of Obstetrics and Gynecology and Physiopathology of Human Reproduction, ASL Salerno, Salerno, Italy
| | - Nicola Colacurci
- Outpatient Fertility Unit, University of Campania 'Luigi Vanvitelli', 80138, Naples, Italy
- Department of Woman, Child and General and Special Surgery, University of Campania 'Luigi Vanvitelli', 80138, Naples, Italy
| | - Cinzia Di Pietro
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics "Giovanni Sichel", University of Catania, 95123, Catania, CT, Italy
| | - Rosalia Battaglia
- Department of Biomedical and Biotechnological Sciences, Section of Biology and Genetics "Giovanni Sichel", University of Catania, 95123, Catania, CT, Italy
| | | | - Lucia Altucci
- Department of Precision Medicine, University of Campania 'Luigi Vanvitelli', Programma di Epigenetica Medica, Azienda Ospedaliera Universitaria, Naples, Italy.
- BIOGEM, Ariano Irpino, Italy.
- Institute of Experimental Endocrinology and Oncology 'Gaetano Salvatore' (IEOS)-National Research Council (CNR), Naples, Italy.
| | - Carmela Dell'Aversana
- Department of Precision Medicine, University of Campania 'Luigi Vanvitelli', Programma di Epigenetica Medica, Azienda Ospedaliera Universitaria, Naples, Italy.
- Institute of Experimental Endocrinology and Oncology 'Gaetano Salvatore' (IEOS)-National Research Council (CNR), Naples, Italy.
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5
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Kasimanickam VR, Kasimanickam RK. In Silico Analysis of miRNA-Mediated Genes in the Regulation of Dog Testes Development from Immature to Adult Form. Animals (Basel) 2023; 13:ani13091520. [PMID: 37174557 PMCID: PMC10177090 DOI: 10.3390/ani13091520] [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: 03/11/2023] [Revised: 04/22/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
High-throughput in-silico techniques help us understand the role of individual proteins, protein-protein interaction, and their biological functions by corroborating experimental data as epitomized biological networks. The objective of this investigation was to elucidate the association of miRNA-mediated genes in the regulation of dog testes development from immature to adult form by in-silico analysis. Differentially expressed (DE) canine testis miRNAs between healthy immature (2.2 ± 0.13 months; n = 4) and mature (11 ± 1.0 months; n = 4) dogs were utilized in this investigation. In silico analysis was performed using miRNet, STRING, and ClueGo programs. The determination of mRNA and protein expressions of predicted pivotal genes and their association with miRNA were studied. The results showed protein-protein interaction for the upregulated miRNAs, which revealed 978 enriched biological processes GO terms and 127 KEGG enrichment pathways, and for the down-regulated miRNAs revealed 405 significantly enriched biological processes GO terms and 72 significant KEGG enrichment pathways (False Recovery Rate, p < 0.05). The in-silico analysis of DE-miRNA's associated genes revealed their involvement in the governing of several key biological functions (cell cycle, cell proliferation, growth, maturation, survival, and apoptosis) in the testis as they evolve from immature to adult forms, mediated by several key signaling pathways (ErbB, p53, PI3K-Akt, VEGF and JAK-STAT), cytokines and hormones (estrogen, GnRH, relaxin, thyroid hormone, and prolactin). Elucidation of DE-miRNA predicted genes' specific roles, signal transduction pathways, and mechanisms, by mimics and inhibitors, which could perhaps offer diagnostic and therapeutic targets for infertility, cancer, and birth control.
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Affiliation(s)
- Vanmathy R Kasimanickam
- Center for Reproductive Biology, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA
| | - Ramanathan K Kasimanickam
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA
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Mutia K, Wiweko B, Abinawanto A, Dwiranti A, Bowolaksono A. microRNAs as A Biomarker to Predict Embryo Quality Assessment in In Vitro Fertilization. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2023; 17:85-91. [PMID: 36906824 PMCID: PMC10009514 DOI: 10.22074/ijfs.2022.551571.1285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Indexed: 03/13/2023]
Abstract
Embryo selection for in vitro fertilization (IVF) is an effort to increase the success rate of embryo implantation. Factors influencing the success of embryo implantation include embryo quality, endometrial receptivity, embryo characteristics, and maternal interactions. Some molecules have been found to influence these factors, but their regulatory mechanisms are unclear. MicroRNAs (miRNAs) are reported to play an essential role in the embryo implantation process. miRNAs are small non-coding RNAs consisting of only 20 nucleotides that play an essential role in the stability of gene expression regulation. Previous studies have reported that miRNAs have many roles and are released by cells into the extracellular environment for intracellular communication. In addition, miRNAs can provide information related to physiological and pathological conditions. These findings encourage research development in determining the quality of embryos in IVF to increase the implantation success rate. Moreover, miRNAs can provide an overview of embryo-maternal communication and potentially be noninvasive biological markers of embryo quality, which could increase assessment accuracy while reducing mechanical damage to the embryo itself. This review article summarizes the involvement of extracellular miRNAs and the potential applications of miRNAs in IVF.
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Affiliation(s)
- Kresna Mutia
- Universitas IndonesiaMaster Program of Biology, Department of Biology, Faculty of Mathematics and Natural Science, Universitas Indonesia, Depok, Indonesia.,Human Reproduction, Infertility and Family Planning Research Center, Indonesian Medical Education and Research Institute, Faculty of Medicine, Universitas Indonesia Jakarta, Jakarta, Indonesia
| | - Budi Wiweko
- Human Reproduction, Infertility and Family Planning Research Center, Indonesian Medical Education and Research Institute, Faculty of Medicine, Universitas Indonesia Jakarta, Jakarta, Indonesia.,Division of Reproductive Endocrinology and Infertility Department of Obstetrics and Gynecology, Faculty of Medicine Universitas Indonesia, DKI Jakarta, Indonesia.,Yasmin IVF Clinic, Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
| | - Abinawanto Abinawanto
- Cellular and Molecular Mechanisms in Biological System (CEMBIOS) Research Group, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia
| | - Astari Dwiranti
- Cellular and Molecular Mechanisms in Biological System (CEMBIOS) Research Group, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia
| | - Anom Bowolaksono
- Human Reproduction, Infertility and Family Planning Research Center, Indonesian Medical Education and Research Institute, Faculty of Medicine, Universitas Indonesia Jakarta, Jakarta, Indonesia.,Cellular and Molecular Mechanisms in Biological System (CEMBIOS) Research Group, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia
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7
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Zhang S, Liu Y, Wang M, Ponikwicka-Tyszko D, Ma W, Krentowska A, Kowalska I, Huhtaniemi I, Wolczynski S, Rahman NA, Li X. Role and mechanism of miR-335-5p in the pathogenesis and treatment of polycystic ovary syndrome. Transl Res 2023; 252:64-78. [PMID: 35931409 DOI: 10.1016/j.trsl.2022.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 01/14/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a common endocrine disorder of unknown etiology that occurs in women of reproductive age. Despite being considered to affect up to one-fifth of women in this cohort, the condition lacks generally accepted diagnostic biomarkers and options for targeted therapy. Hereby, we analyzed the diagnostic, therapeutic, and functional potential of a recently discovered miR-335-5p that was observed to be reduced in the follicular fluid (FF) of PCOS patients as compared with healthy women. We found miR-335-5p to be significantly decreased in the serum and FF samples of PCOS patients (n = 40) vs healthy women (n = 30), as well as in primary human granulosa cells (hGCs), and in 3 different hormonally induced PCOS-like murine models vs. wild-type (WT) mice. The level of circulating miR-335-5p was found to significantly correlate with the impaired endocrine and clinical features associated with PCOS in human patients. Ovarian intrabursal injection of the miR-335-5p antagomir in WT mice ovaries induced a PCOS-like reproductive phenotype. Treatment with the miR-335-5p agomir rescued the dihydrotestosterone-induced PCOS-phenotype in mice, thereby providing a functional link between miR-335-5p and PCOS. We identified SP1 as a miR-335-5p target gene by using the dual-luciferase reporter assay. Both the luciferase reporter assay and chromatin immunoprecipitation assay showed that SP1 bound to the promoter region of human CYP19A1 and inhibited its transcription. miR-335-5p increased the production of estradiol via the SP1/CYP19A1 axis in hGCs, thereby suggesting its mechanistic pathway of action. In conclusion, these results provide evidence that miR-335-5p may function as a mediator in the etiopathogenesis of PCOS, as well as has the potential as both a novel diagnostic biomarker and therapeutic target for PCOS.
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Affiliation(s)
- Shanshan Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yajing Liu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China; Hainan Yazhou Bay Seed Lab
| | - Mingming Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Donata Ponikwicka-Tyszko
- Department of Biology and Pathology of Human Reproduction, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland; Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Wenqiang Ma
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Anna Krentowska
- Department of Internal Medicine and Metabolic Diseases, Medical University of Białystok, Bialystok, Poland
| | - Irina Kowalska
- Department of Internal Medicine and Metabolic Diseases, Medical University of Białystok, Bialystok, Poland
| | - Ilpo Huhtaniemi
- Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland; Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, UK
| | - Slawomir Wolczynski
- Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, Bialystok, 15276, Poland
| | - Nafis A Rahman
- Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland; Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, UK
| | - Xiangdong Li
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China; Hainan Yazhou Bay Seed Lab; Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London W12 0NN, UK; Department of Nutrition and Health, China Agricultural University, Beijing, China.
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8
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De Nardo Maffazioli G, Baracat EC, Soares JM, Carvalho KC, Maciel GAR. Evaluation of circulating microRNA profiles in Brazilian women with polycystic ovary syndrome: A preliminary study. PLoS One 2022; 17:e0275031. [PMID: 36206272 PMCID: PMC9543946 DOI: 10.1371/journal.pone.0275031] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Polycystic ovary syndrome (PCOS) is a heterogeneous endocrinopathy, which etiology encompasses complex genetic traits associated with epigenetic factors, including differences in microRNA (miRNA) expression in a variety of tissues. The circulating form of these molecules is raising attention in the syndrome not only as potential biomarkers of PCOS but also as possible therapeutic targets. The aim of this study was to explore the circulating miRNA profiles present in a cohort of Brazilian women with and without PCOS and to evaluate the potential role of miRNAs in the pathophysiology of the syndrome. METHODS Cross-sectional study of 36 well-characterized PCOS women and 16 healthy controls. Clinical, hormone and metabolic data were recorded and evaluated. The expression profile of the 201 circulating miRNA selected were analyzed by taqman quantitative real time polymerase chain reactions (RT-PCR) using a customized Open Array platform. Statistical and bioinformatic analyzed were performed. RESULTS Circulating miR-21-5p, miR-23a-3p and miR-26a-5p were upregulated, and miR-103a-3p, miR-376a-3p, miR-19b-3p and miR-222-3p were downregulated in women with PCOS compared to healthy normo-ovulatory controls. miR-21-5p, miR-103a-3p and miR-376a-3p levels correlated positively with androgen levels. These miRNAs, in combination, were related to pathways involved in insulin signaling, steroids biosynthesis and endothelial regulation as well as in folliculogenesis. CONCLUSION In this study, we identified a specific circulating miRNA signature in Brazilian women with PCOS. According to our data, circulating miR-21-5p, miR-23a-3p, miR-26a-5p, miR-103a-3p, miR-376a-3p, miR-19b-3p and miR-222-3p may represent potential candidates for differential diagnosis of PCOS in the future.
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Affiliation(s)
- Giovana De Nardo Maffazioli
- Faculdade de Medicina de Sao Paulo, Departamento de Obstetrícia e Ginecologia, Disciplina de Ginecologia, Hospital das Clínicas HCFMUSP, Sao Paulo, SP, Brazil
- Laboratório de Ginecologia Estrutural e Molecular (LIM 58), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Departamento de Obstetricia e Ginecologia, Disciplina de Ginecologia, São Paulo, Brazil
- * E-mail:
| | - Edmund Chada Baracat
- Faculdade de Medicina de Sao Paulo, Departamento de Obstetrícia e Ginecologia, Disciplina de Ginecologia, Hospital das Clínicas HCFMUSP, Sao Paulo, SP, Brazil
- Laboratório de Ginecologia Estrutural e Molecular (LIM 58), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Departamento de Obstetricia e Ginecologia, Disciplina de Ginecologia, São Paulo, Brazil
| | - José Maria Soares
- Faculdade de Medicina de Sao Paulo, Departamento de Obstetrícia e Ginecologia, Disciplina de Ginecologia, Hospital das Clínicas HCFMUSP, Sao Paulo, SP, Brazil
| | - Kátia Cândido Carvalho
- Faculdade de Medicina de Sao Paulo, Departamento de Obstetrícia e Ginecologia, Disciplina de Ginecologia, Hospital das Clínicas HCFMUSP, Sao Paulo, SP, Brazil
- Laboratório de Ginecologia Estrutural e Molecular (LIM 58), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Departamento de Obstetricia e Ginecologia, Disciplina de Ginecologia, São Paulo, Brazil
| | - Gustavo Arantes Rosa Maciel
- Faculdade de Medicina de Sao Paulo, Departamento de Obstetrícia e Ginecologia, Disciplina de Ginecologia, Hospital das Clínicas HCFMUSP, Sao Paulo, SP, Brazil
- Laboratório de Ginecologia Estrutural e Molecular (LIM 58), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo, Departamento de Obstetricia e Ginecologia, Disciplina de Ginecologia, São Paulo, Brazil
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9
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Kose M, Hitit M, Kaya MS, Kırbas M, Dursun S, Alak I, Atli MO. Expression pattern of microRNAs in ovine endometrium during the peri-implantation. Theriogenology 2022; 191:35-46. [DOI: 10.1016/j.theriogenology.2022.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 11/25/2022]
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10
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Shekibi M, Heng S, Nie G. MicroRNAs in the Regulation of Endometrial Receptivity for Embryo Implantation. Int J Mol Sci 2022; 23:ijms23116210. [PMID: 35682889 PMCID: PMC9181585 DOI: 10.3390/ijms23116210] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/13/2022] [Accepted: 05/28/2022] [Indexed: 12/13/2022] Open
Abstract
Development of endometrial receptivity is crucial for successful embryo implantation and pregnancy initiation. Understanding the molecular regulation underpinning endometrial transformation to a receptive state is key to improving implantation rates in fertility treatments such as IVF. With microRNAs (miRNAs) increasingly recognized as important gene regulators, recent studies have investigated the role of miRNAs in the endometrium. Studies on miRNAs in endometrial disorders such as endometriosis and endometrial cancer have been reviewed previously. In this minireview, we aim to provide an up-to-date knowledge of miRNAs in the regulation of endometrial receptivity. Since endometrial remodelling differs considerably between species, we firstly summarised the key events of the endometrial cycle in humans and mice and then reviewed the miRNAs identified so far in these two species with likely functional significance in receptivity establishment. To date, 29 miRNAs have been reported in humans and 15 miRNAs in mice within various compartments of the endometrium that may potentially modulate receptivity; miRNAs regulating the Wnt signalling and those from the let-7, miR-23, miR-30, miR-200 and miR-183 families are found in both species. Future studies are warranted to investigate miRNAs as biomarkers and/or therapeutic targets to detect/improve endometrial receptivity in human fertility treatment.
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11
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Zafari N, Bahramy A, Majidi Zolbin M, Emadi Allahyari S, Farazi E, Hassannejad Z, Yekaninejad MS. microRNAs as novel diagnostic biomarkers in endometriosis patients: a systematic review and meta-analysis. Expert Rev Mol Diagn 2021; 22:479-495. [PMID: 34304687 DOI: 10.1080/14737159.2021.1960508] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Objective: To investigate whether miRNAs have a remarkable pooled diagnostic accuracy, sensitivity, and specificity as noninvasive biomarkers to distinguish endometriosis patients from non-endometriosis women.Methods: A comprehensive literature search of PubMed, Embase, and ProQuest was performed through February 21, 2021 to find relevant studies. Two reviewers independently screened each article, and discrepancies were resolved by consensus. Deeks' funnel plot asymmetry test was performed to assess the publication bias of included studies. The STATA software and RevMan 5.4 were used for data analysis and quality assessment, respectively.Results: The overall quality of the studies was moderate to high. In total 87 datasets were assessed miRNAs' performance which results in sensitivity: 0.82, specificity: 0.79, DOR: 18, NPV: 0.80, PPV: 0.78, PLR: 3.97, and NLR: 022. We conducted subgroup analyses, which showed panels of miRNAs (DOR: 54) and serum (DOR: 43) as a target tissue was more reliable to utilize as biomarkers. Deeks' funnel plot showed that there is no publication bias (P-value = 0.25).Conclusions: Panels of miRNAs differentiate endometriosis patients from non-endometriosis women with high sensitivity and specificity; therefore, it has the potential to use as a noninvasive biomarker.
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Affiliation(s)
- Narges Zafari
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Afshin Bahramy
- Department of Medical Genetics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Masoumeh Majidi Zolbin
- Pediatric Urology and Regenerative Medicine Research Center, Section of Tissue Engineering and Stem Cells Therapy, Children's Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran (IRI)
| | - Sima Emadi Allahyari
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Erfan Farazi
- Department of Medicine, School of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Zahra Hassannejad
- Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mir Saeed Yekaninejad
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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12
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Huo S, Qi H, Si Y, Li C, Du W. MicroRNA 26a targets Ezh2 to regulate apoptosis in mouse ovarian granulosa cells. Syst Biol Reprod Med 2021; 67:221-229. [PMID: 34058933 DOI: 10.1080/19396368.2021.1895362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
In the mammalian ovary, <1% of the follicles ovulate, with most undergoing degenerative atresia during ovarian follicular development. Follicular atresia is caused by the apoptosis of granulosa cells (GCs), although the precise underpinning mechanism remains unidentified. MiR-26a regulates various cellular events, including cell division, apoptotic signaling, and cell differentiation, migration, and autophagy. Here, we demonstrated that miR-26a regulated apoptosis in GCs in the mouse ovary through Ezh2, a key regulator of GC viability. We also found that transcription of miR-26a changed in response to an LH antagonist and a GnRH agonist. In addition, miR-26a transcription was downregulated following LH-induced transition of GCs to granulosa-lutein cells (GLCs). Dual-luciferase reporter assays confirmed Ezh2 as a miR-26a target. Exogenous expression in GCs of miR-26a mimics resulted in decreased Ezh2 expression, while miR-26a inhibition in GCs induced the opposite phenotype. Ezh2 silencing additionally reduced the anti-apoptotic effect of miR-26a inhibition in GCs. These data highlight the critical role of miR-26a in targeting Ezh2 and regulating apoptosis in mouse ovarian GCs.Abbreviations: GC: Granulosa cell; GLCs: Granulosa-lutein cells; LH: Luteinizing hormone; miRNA: MicroRNA; NC: Negative control; Cyt-c: Cytochrome c; GnRH: Gonadotropin releasing hormone; i.p.: intraperitoneal injection; cKO: conditional knock-out; WB: Western blotting; hCG: Human chorionic gonadotropin; NPC: nasopharyngeal carcinoma.
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Affiliation(s)
- Shiwei Huo
- Department of Reproductive Medicine, The Central Hospital of Taian, Taian, China
| | - Hongrong Qi
- Department of Reproductive Medicine, The Central Hospital of Taian, Taian, China
| | - Yuexiu Si
- Department of Respiration, The Fifth Hospital of Jinan, Jinan, China
| | - Changzhou Li
- Department of Reproductive Medicine, The Central Hospital of Taian, Taian, China
| | - Wenyan Du
- Department of Outpatient, The Branch of Taian Central Hospital, Taian, China
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13
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Yang H, Fu L, Luo Q, Li L, Zheng F, Wen J, Luo X, Li C, Zhao Z, Xu H, Wang G. Comparative analysis of differentially expressed miRNAs related to uterine involution in the ovine ovary and uterus. Arch Anim Breed 2021; 64:167-175. [PMID: 34084915 PMCID: PMC8161056 DOI: 10.5194/aab-64-167-2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 03/26/2021] [Indexed: 11/11/2022] Open
Abstract
To examine the possible miRNA molecular regulatory mechanisms during maternal uterine involution after delivery, we selected ovary and uterus tissues that are structurally connected as experimental materials. We employed Illumina HiSeq sequencing to screen and analyze the quantity and characteristics of miRNA in postpartum ewes in the methylergometrine-treated group and physiological saline control group. Results showed that 16 miRNAs were identified in the ovary libraries, including 4 known miRNAs and 12 novel miRNAs. In the uterus libraries, 54 miRNAs were identified, which included 5 known miRNAs and 49 novel miRNAs. At the same time, target gene prediction, GO annotation, and KEGG signaling pathway enrichment analysis were employed. We found that maternal uterine involution after delivery may involve two miRNA-target gene pairs, i.e., miRNA-200a-ZEB1 and YAP1. The YAP1/Hippo signaling pathway is used to construct an ovary-uterine axial regulatory mechanism to regulate the restoration of postpartum maternal uterine morphology and function. In view of this, the identification of miRNAs with significant differences in this study fills a gap in research on miRNAs associated with regulation of postpartum uterine recovery in ewes and provided an important reference for comprehensive understanding and in-depth research on the regulatory molecular network mechanism for postpartum uterine involution in small ruminants.
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Affiliation(s)
- Heng Yang
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China.,Immunology Research Center, Medical Research Institute, Southwest University, Rongchang 402460, Chongqing, China
| | - Lin Fu
- Chongqing academy of animal sciences, Rongchang 402460, Chongqing, China
| | - Qifeng Luo
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Licai Li
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Fangling Zheng
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Jiayu Wen
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Xingxiu Luo
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Chenjing Li
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Zongsheng Zhao
- College of Animal Science and Technology, Shihezi University, Shihezi 832000, Xinjiang, China
| | - Huihao Xu
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Gaofu Wang
- Chongqing academy of animal sciences, Rongchang 402460, Chongqing, China
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14
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Yang H, Fu L, Luo Q, Li L, Zheng F, Wen J, Li C, Luo X, Zhao Z, Xu H. Identification and validation of key miRNAs and miRNA-mRNA regulatory network associated with uterine involution in postpartum Kazakh sheep. Arch Anim Breed 2021; 64:119-129. [PMID: 34084910 PMCID: PMC8131964 DOI: 10.5194/aab-64-119-2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 03/17/2021] [Indexed: 12/30/2022] Open
Abstract
MicroRNAs (miRNAs) are widely expressed in different mammalian tissues and
exert their biological effects through corresponding target genes. miRNA
target genes can be rapidly and efficiently identified and screened by
combining bioinformatics prediction and experimental validation. To
investigate the possible molecular regulatory mechanisms involving miRNAs
during uterine involution in postpartum ewes, we used Illumina HiSeq
sequencing technology to screen for the number and characteristics of miRNAs
in faster uterine involution and normal uterine involution group. A total of
118 differentially expressed miRNAs, including 33 known miRNAs and 85 new
miRNAs, were identified in the hypothalamic library, whereas 54 miRNAs,
including 5 known miRNAs and 49 new miRNAs, were identified in the uterine
library. Screening with four types of gene prediction software revealed 73
target genes associated with uterine involution, and subsequently, GO
annotation and KEGG pathway analysis were performed. The results showed
that, in the hypothalamic–uterine axis, uterine involution in postpartum
ewes might primarily involve two miRNA-target gene pairs, namely,
miRNA-200a–PTEN and miRNA-133–FGFR1, which can participate in GnRH signal
transduction in the upstream hypothalamus and in the remodeling process at
the downstream uterus, through the PI3K–AKT signaling pathway to influence
the recovery of the morphology and functions of the uterus during the
postpartum period in sheep. Therefore, identification of differentially
expressed miRNAs in this study fills a gap in the research related to miRNAs
in uterine involution in postpartum ewes and provides an important reference
point for a comprehensive understanding of the molecular mechanisms
underlying the regulation of postpartum uterine involution in female
livestock.
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Affiliation(s)
- Heng Yang
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China.,Immunology Research Center, Medical Research Institute, Southwest University, Rongchang 402460, Chongqing, China
| | - Lin Fu
- Chongqing Academy of Animal Sciences, Rongchang 402460, Chongqing, China
| | - Qifeng Luo
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Licai Li
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Fangling Zheng
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Jiayu Wen
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Chenjing Li
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Xingxiu Luo
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
| | - Zongsheng Zhao
- College of Animal Science and Technology, Shihezi University, Shihezi 832000, Xinjiang, China
| | - Huihao Xu
- College of Veterinary Medicine, Southwest University, Rongchang 402460, Chongqing, China
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15
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Cañón-Beltrán K, Hamdi M, Mazzarella R, Cajas YN, Leal CLV, Gutiérrez-Adán A, González EM, da Silveira JC, Rizos D. Isolation, Characterization, and MicroRNA Analysis of Extracellular Vesicles from Bovine Oviduct and Uterine Fluids. Methods Mol Biol 2021; 2273:219-238. [PMID: 33604857 DOI: 10.1007/978-1-0716-1246-0_16] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Intercellular communication can be carried out by circulating systemic and/or locally released extracellular vesicles (EVs), produced by nearly every cell type and tissue, and are involved in physiological and pathological processes. In recent years, EVs have been identified in reproductive tissues, such as oviduct and uterus, and have been shown to be related to several events important for reproductive success. The understanding of their functions in reproduction has important implications for assisted reproductive technologies, for the treatment of infertility in humans and improvement of reproduction efficiency in animals. To study such EVs, it is necessary to isolate and concentrate them from fluid samples, which in the case of reproductive tissues, are usually of limited volume. Several methods for EV isolation are available such as chromatography, ultracentrifugation, polymer-based precipitation, and immunoaffinity.Outcomes can be variable in terms of the amount and quality of isolated EVs, due to the type of isolation method. The choice of method, or a different combination of methods, may depend on the type of sample and scientific question to be addressed in a given study. In this chapter, we describe a method for isolation of EVs from bovine oviductal and uterine fluids for use in functional studies. The method combines size exclusion chromatography and ultracentrifugation. We also describe the different protocols for characterization of isolated EVs (transmission electron microscopy, nanoparticle tracking analysis, and western blot), as well as the isolation of RNA content in EVs, and their miRNAs profiling for functional studies.
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Affiliation(s)
- Karina Cañón-Beltrán
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), Madrid, Spain
| | - Meriem Hamdi
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), Madrid, Spain
| | - Rosane Mazzarella
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Yulia N Cajas
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), Madrid, Spain
| | - Claudia L V Leal
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), Madrid, Spain
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Alfonso Gutiérrez-Adán
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), Madrid, Spain
| | - Encina M González
- Department of Anatomy and Embryology, Veterinary Faculty, Complutense University of Madrid (UCM), Madrid, Spain
| | - Juliano C da Silveira
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Dimitrios Rizos
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), Madrid, Spain.
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16
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Dicing the Disease with Dicer: The Implications of Dicer Ribonuclease in Human Pathologies. Int J Mol Sci 2020; 21:ijms21197223. [PMID: 33007856 PMCID: PMC7583940 DOI: 10.3390/ijms21197223] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/27/2020] [Accepted: 09/27/2020] [Indexed: 12/12/2022] Open
Abstract
Gene expression dictates fundamental cellular processes and its de-regulation leads to pathological conditions. A key contributor to the fine-tuning of gene expression is Dicer, an RNA-binding protein (RBPs) that forms complexes and affects transcription by acting at the post-transcriptional level via the targeting of mRNAs by Dicer-produced small non-coding RNAs. This review aims to present the contribution of Dicer protein in a wide spectrum of human pathological conditions, including cancer, neurological, autoimmune, reproductive and cardiovascular diseases, as well as viral infections. Germline mutations of Dicer have been linked to Dicer1 syndrome, a rare genetic disorder that predisposes to the development of both benign and malignant tumors, but the exact correlation of Dicer protein expression within the different cancer types is unclear, and there are contradictions in the data. Downregulation of Dicer is related to Geographic atrophy (GA), a severe eye-disease that is a leading cause of blindness in industrialized countries, as well as to psychiatric and neurological diseases such as depression and Parkinson's disease, respectively. Both loss and upregulation of Dicer protein expression is implicated in severe autoimmune disorders, including psoriasis, ankylosing spondylitis, rheumatoid arthritis, multiple sclerosis and autoimmune thyroid diseases. Loss of Dicer contributes to cardiovascular diseases and causes defective germ cell differentiation and reproductive system abnormalities in both sexes. Dicer can also act as a strong antiviral with a crucial role in RNA-based antiviral immunity. In conclusion, Dicer is an essential enzyme for the maintenance of physiology due to its pivotal role in several cellular processes, and its loss or aberrant expression contributes to the development of severe human diseases. Further exploitation is required for the development of novel, more effective Dicer-based diagnostic and therapeutic strategies, with the goal of new clinical benefits and better quality of life for patients.
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17
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Toprani SM, Kelkar Mane V. Role of DNA damage and repair mechanisms in uterine fibroid/leiomyomas: a review. Biol Reprod 2020; 104:58-70. [PMID: 32902600 DOI: 10.1093/biolre/ioaa157] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/09/2020] [Accepted: 09/03/2020] [Indexed: 12/12/2022] Open
Abstract
There has been a significant annual increase in the number of cases of uterine leiomyomas or fibroids (UF) among women of all races and ages across the world. A fortune is usually spent by the healthcare sector for fibroid-related treatments and management. Molecular studies have established the higher mutational heterogeneity in UF as compared to normal myometrial cells. The contribution of DNA damage and defects in repair responses further increases the mutational burden on the cells. This in turn leads to genetic instability, associated with cancer risk and other adverse reproductive health outcomes. Such and many more growing bodies of literature have highlighted the genetic/molecular, biochemical and clinical aspects of UF; none the less there appear to be a lacuna bridging the bench to bed gap in addressing and preventing this disease. Presented here is an exhaustive review of not only the molecular mechanisms underlying the predisposition to the disease but also possible strategies to effectively diagnose, prevent, manage, and treat this disease.
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Affiliation(s)
- Sneh M Toprani
- Department of Biotechnology, University of Mumbai, Kalina, Mumbai, India
| | - Varsha Kelkar Mane
- Department of Biotechnology, University of Mumbai, Kalina, Mumbai, India
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18
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Identification of Ovarian Circular RNAs and Differential Expression Analysis between MeiShan and Large White Pigs. Animals (Basel) 2020; 10:ani10071114. [PMID: 32610571 PMCID: PMC7401585 DOI: 10.3390/ani10071114] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/22/2020] [Accepted: 06/26/2020] [Indexed: 12/16/2022] Open
Abstract
MeiShan and Large White pigs differ in their female fecundity. However, the mechanisms behind the gene expression and regulation that cause these differences remain unclear. In this study, we profiled circRNAs and identified 5,879 circRNAs from the ovaries of MeiShan and Large White pigs. Eighty-five circRNAs were differentially expressed between the two pig breeds. Of these, 37 were up-regulated and 48 were down-regulated in MeiShan pigs. Gene ontology enrichment analysis suggested that the differentially expressed circRNA were involved in the hormone-mediated signaling pathway. We verified that circSCIN and its parent gene, scinderin (SCIN), were differentially expressed by reverse transcription and quantitative PCR (RT-qPCR). Luciferase assays demonstrated that circSCIN can target and sponge miR-133 and miR-148a/b. The identification of differentially expressed circRNAs (DECs) and their regulatory functions increased our understanding of the differences in reproductive efficiency between MeiShan and Large White pigs.
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19
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Wang Y, Xu S, Wang Y, Qi G, Hou Y, Sun C, Wu X. Identification and potential value of candidate microRNAs in granulosa cells of polycystic ovary syndrome. Technol Health Care 2020; 27:579-587. [PMID: 30932905 DOI: 10.3233/thc-181510] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Polycystic Ovary Syndrome (PCOS) is a major cause of anovulatory infertility. Some studies showed that miRNAs were used as diagnostic/prognostic biomarkers for various diseases. OBJECTIVE To identify candidate miRNAs in Granulosa Cells (GCs) of PCOS and evaluate their potential values for PCOS diagnosis. METHODS We screened differentially expressed miRNAs in GCs between PCOS and controls by the microarray data from the GEO database. GCs were collected from 21 controls and 24 PCOS. The candidate miRNAs were verified by qRT-PCR. The correlation was investigated between candidate miRNAs and clinical characteristics in participants. Diagnostic value of candidate miRNAs was analyzed by receiver operating characteristic (ROC) curve. RESULTS Seven miRNAs were differentially expressed in PCOS compared with controls. Furthermore, the validation results demonstrated that hsa-miR-3188 and hsa-miR-3135b showed higher levels in GCs with PCOS patients (p< 0.05). In addition, the expressions of hsa-miR-3188 and hsa-miR-3135b were negative correlated with FSH and hsa-miR-3188 was positive correlated with BMI (p< 0.05). ROC analysis indicated that hsa-miR-3188 and hsa-miR-3135b could differentiate PCOS from controls, and the hsa-miR-3188/3135b improved the predictive accuracy for PCOS. CONCLUSIONS The expressions of hsa-miR-3188 and hsa-miR-3135b in human GCs were significantly associated with PCOS. Moreover, the hsa-miR-3188/3135b has certain diagnostic value for distinguishing PCOS.
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Affiliation(s)
- Yaoqin Wang
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, Shanxi 030013, China
| | - Suming Xu
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, Shanxi 030013, China
| | - Yonglian Wang
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, Shanxi 030013, China
| | - Gaimei Qi
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, Shanxi 030013, China
| | - Yan Hou
- Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Chunqing Sun
- Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Xueqing Wu
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, Shanxi 030013, China
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20
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Ciebiera M, Włodarczyk M, Zgliczyński S, Łoziński T, Walczak K, Czekierdowski A. The Role of miRNA and Related Pathways in Pathophysiology of Uterine Fibroids-From Bench to Bedside. Int J Mol Sci 2020; 21:ijms21083016. [PMID: 32344726 PMCID: PMC7216240 DOI: 10.3390/ijms21083016] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/17/2020] [Accepted: 04/21/2020] [Indexed: 12/14/2022] Open
Abstract
Uterine fibroids (UFs) are the most common benign tumors of the female genital tract. Their prevalence usually is estimated at 30-40%, but may reach up to 70-80% in predisposed groups of women. UFs may cause various clinical issues which might constitute the major reason of the overall deterioration of the quality of life. The mechanisms leading to UFs formation and growth still remain poorly understood. The transformation of smooth muscle cells of the uterus into abnormal, immortal cells, capable of clonal division, is thought to be a starting point of all pathways leading to UF formation. Micro-ribonucleic acids (miRNAs) are non-coding single-stranded RNAs about 22 nucleotides in length, that regulate gene expression. One of recent advances in this field is the comprehension of the role of miRNAs in tumorigenesis. Alterations in the levels of miRNAs are related to the formation and growth of several tumors which show a distinct miRNA signature. The aim of this review is to summarize the current data about the role of miRNAs in the pathophysiology of UFs. We also discuss future directions in the miRNA research area with an emphasis on novel diagnostic opportunities or patient-tailored therapies. In our opinion data concerning the regulation of miRNA and its gene targets in the UFs are still insufficient in comparison with gynecological malignancies. The potential translational use of miRNA and derived technologies in the clinical care is at the early phase and needs far more evidence. However, it is one of the main areas of interest for the future as the use of miRNAs in the diagnostics and treatment of UFs is a new and exciting opportunity.
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Affiliation(s)
- Michał Ciebiera
- Second Department of Obstetrics and Gynecology, The Center of Postgraduate Medical Education, 01-809 Warsaw, Poland
- Correspondence: ; Tel.: +48-607-155-177
| | - Marta Włodarczyk
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland;
- Center for Preclinical Research, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Stanisław Zgliczyński
- Department of Internal Diseases and Endocrinology, Central Teaching Clinical Hospital, Medical University of Warsaw, 02-097 Warsaw, Poland;
| | - Tomasz Łoziński
- Department of Obstetrics and Gynecology, Pro-Familia Hospital, 35-302 Rzeszów, Poland;
| | - Klaudia Walczak
- Students’ Scientific Association at the Department of Endocrinology, The Center of Postgraduate Medical Education, 01-809 Warsaw, Poland;
| | - Artur Czekierdowski
- Department of Gynecological Oncology and Gynecology, Medical University of Lublin, 20-081 Lublin, Poland;
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21
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Belguith I, Dhieb D, Turki M, Yaich S, Chaabene K, Mnif M, Ayadi F, Keskes LA. Diagnostic value of miR-199a and miR-21 in the plasma of infertile women with dysregulated AMH levels. HUM FERTIL 2020; 25:154-165. [PMID: 32283952 DOI: 10.1080/14647273.2020.1750715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This work aimed to explore the expression pattern of circulating miR-199a-3p, miR-21-5p and miR-let7i-3p in infertile women with dysregulated AMH levels. Quantitative real-time PCR was used to measure miR-199a-3p, miR-21-5p, and miR-let7i-3p expression levels in 60 plasma samples of infertile women with low or high AMH levels. Bioinformatic analyses for microRNAs predicting target genes and molecular pathways were performed according to gene ontology (GO) analysis and KEGG pathways. Only miR-199a-3p and miR-21-5p were significantly over and under-expressed, respectively, in the plasma samples of all infertile women with low or high AMH levels versus controls (p-value = 0.01). Furthermore, the diagnostic value miR-199a-3p yielded a receiver operating characteristic (ROC) curve with area under the curve (AUC) of 0.82 with a 95% CI [0.72-0.92] and an AUC of 0.81, for miR-21-5p, 95% CI [0.69-0.92]. The combined ROC curve of miR-21 and miR-199a provided an optimal combination with AUC = 0.98, 95% CI [0.96-1], and, a cut-off point (0.42) which provided 98% sensitivity and 87% specificity. In conclusion, circulating miR-199a-3p and miR-21-5p vary significantly whenever AMH levels of infertile women are disturbed and could potentially serve as non-invasive biomarkers in distinguishing infertile from fertile women.
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Affiliation(s)
- Imen Belguith
- Faculty of Medicine, Laboratory of Human Molecular Genetics, University of Sfax, Sfax, Tunisia
| | - Dhoha Dhieb
- Faculty of Medicine, Laboratory of Human Molecular Genetics, University of Sfax, Sfax, Tunisia
| | - Mouna Turki
- Laboratory of Biochemistry, CHU Habib Bourguiba, Sfax University, Sfax, Tunisia
| | - Sourour Yaich
- Department of Community Medicine and Epidemiology, CHU Hedi Chaker, Sfax, Tunisia
| | - Kais Chaabene
- Obstetrics and Gynecology Department, CHU Hedi Chaker, Sfax, Tunisia
| | - Mouna Mnif
- Department of Endocrinology Diabetology, CHU Hedi Chaker, Sfax, Tunisia
| | - Fatma Ayadi
- Laboratory of Biochemistry, CHU Habib Bourguiba, Sfax University, Sfax, Tunisia
| | - Leila Ammar Keskes
- Faculty of Medicine, Laboratory of Human Molecular Genetics, University of Sfax, Sfax, Tunisia
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22
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Kamalidehghan B, Habibi M, Afjeh SS, Shoai M, Alidoost S, Almasi Ghale R, Eshghifar N, Pouresmaeili F. The Importance of Small Non-Coding RNAs in Human Reproduction: A Review Article. APPLICATION OF CLINICAL GENETICS 2020; 13:1-11. [PMID: 32021379 PMCID: PMC6956659 DOI: 10.2147/tacg.s207491] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 12/04/2019] [Indexed: 12/14/2022]
Abstract
Background MicroRNAs (miRNA) play a key role in the regulation of gene expression through the translational suppression and control of post-transcriptional modifications. Aim Previous studies demonstrated that miRNAs conduct the pathways involved in human reproduction including maintenance of primordial germ cells (PGCs), spermatogenesis, oocyte maturation, folliculogenesis and corpus luteum function. The association of miRNA expression with infertility, polycystic ovary syndrome (PCOS), premature ovarian failure (POF), and repeated implantation failure (RIF) was previously revealed. Furthermore, there are evidences of the importance of miRNAs in embryonic development and implantation. Piwi-interacting RNAs (piRNAs) and miRNAs play an important role in the post-transcriptional regulatory processes of germ cells. Indeed, the investigation of small RNAs including miRNAs and piRNAs increase our understanding of the mechanisms involved in fertility. In this review, the current knowledge of microRNAs in embryogenesis and fertility is discussed. Conclusion Further research is necessary to provide new insights into the application of small RNAs in the diagnosis and therapeutic approaches to infertility.
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Affiliation(s)
- Behnam Kamalidehghan
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Habibi
- Central Laboratory, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sara S Afjeh
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Shoai
- Department of Molecular Neuroscience, UCL Institute of Neurology, London, UK
| | - Saeideh Alidoost
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Rouzbeh Almasi Ghale
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Nahal Eshghifar
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran and Men's Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farkhondeh Pouresmaeili
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Men's Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Bortolotti D, Soffritti I, D'Accolti M, Gentili V, Di Luca D, Rizzo R, Caselli E. HHV-6A Infection of Endometrial Epithelial Cells Affects miRNA Expression and Trophoblast Cell Attachment. Reprod Sci 2020; 27:779-786. [PMID: 32046402 PMCID: PMC7077927 DOI: 10.1007/s43032-019-00102-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 08/13/2019] [Indexed: 02/07/2023]
Abstract
We recently reported that human herpesvirus 6 (HHV-6) infection is frequently present in endometrial tissue of women with unexplained infertility, and that virus infection induces a profound remodulation of miRNA expression in human cells of different origin. Since specific miRNA patterns have been associated with specific pregnancy outcomes, we aimed to analyze the impact of HHV-6A infection on miRNAs expression and trophoblast receptivity in human endometrial cells. To this purpose, a human endometrial cell line (HEC-1A) was infected with HHV-6A and analyzed for alterations in the expression of miRNAs and for permissiveness to the attachment of a human choriocarcinoma trophoblast cell line (JEG-3). The results showed that HHV-6A infection of endometrial cells up-modulates miR22 (26-fold), miR15 (19.5-fold), and miR196-5p (12.1 fold), that are correlated with implant failure, and down-modulates miR18 (11.4 fold), miR101-3p (4.6 fold), miR181-5p (4.9 fold), miR92 (3.3 fold), and miR1207-5p (3.9 fold), characterized by a low expression in preeclampsia. Moreover, HHV-6A-infected endometrial cells infected resulted less permissive to the attachment of trophoblast cells. In conclusion, collected data suggest that HHV-6A infection could modify miRNA expression pattern and control of trophoblast cell adhesion of endometrial cells, undermining a correct trophoblast cell attachment on endometrial cells.
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Affiliation(s)
- Daria Bortolotti
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, via Luigi Borsari 46, 44121, Ferrara, Italy
| | - Irene Soffritti
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, via Luigi Borsari 46, 44121, Ferrara, Italy
| | - Maria D'Accolti
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, via Luigi Borsari 46, 44121, Ferrara, Italy
| | - Valentina Gentili
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, via Luigi Borsari 46, 44121, Ferrara, Italy
| | - Dario Di Luca
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, via Luigi Borsari 46, 44121, Ferrara, Italy
| | - Roberta Rizzo
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, via Luigi Borsari 46, 44121, Ferrara, Italy
| | - Elisabetta Caselli
- Section of Microbiology and Medical Genetics, Department of Medical Sciences, University of Ferrara, via Luigi Borsari 46, 44121, Ferrara, Italy.
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He T, Sun Y, Zhang Y, Zhao S, Zheng Y, Hao G, Shi Y. MicroRNA-200b and microRNA-200c are up-regulated in PCOS granulosa cell and inhibit KGN cell proliferation via targeting PTEN. Reprod Biol Endocrinol 2019; 17:68. [PMID: 31421682 PMCID: PMC6698342 DOI: 10.1186/s12958-019-0505-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 07/18/2019] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is one of the most common endocrine metabolic disorders characterized by hyperandrogenism, polycystic ovaries and ovulatory dysfunction. Several studies have reported that the aberrant expression of miRNAs contributes a lot to disordered folliculogenesis in PCOS, though the role and underlying mechanism of microRNA-200b (miR-200b) and microRNA-200c (miR-200c) in the development of PCOS remain unclear. METHODS The expression of miR-200b in granulosa cells (GCs) derived from 90 PCOS patients and 70 controls was analyzed by using quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Granulosa-like tumor cell line (KGN) was cultured for cell counting kit-8 (CCK-8) assays after over-expression of miR-200b, miR-200c or knockdown phosphatase and tensin homolog (PTEN). TargetScan was used to identify the potential targets of miR-200b and miR-200c, which was further verified by qRT-PCR, western blot and luciferase assays. RESULTS Significantly increased expression of miR-200b was observed in PCOS patients compared with the controls. Moreover, over-expression of miR-200b and miR-200c inhibited the proliferation of KGN cells. In addition, our results verified that miR-200b and miR-200c directly targeted PTEN, knockdown of which suppressed KGN cells proliferation. CONCLUSION Our findings demonstrate that miR-200b and miR-200c suppress the proliferation of KGN cells by targeting PTEN, and this might provide new evidence for abnormal proliferation of GCs in PCOS.
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Affiliation(s)
- Tingting He
- Center for Reproductive Medicine, Shandong University; The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, China; Shandong Provincial Clinical Medicine Research Center for reproductive health, Jinan, 250021, China
- Reproductive Medicine Center, The Northwest Women's & Children's Hospital affiliated of Xi'an Jiaotong University, Xi'an, 710003, China
| | - Yifei Sun
- Department of Reproductive Medicine, the Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yingchun Zhang
- Department for Reproductive Medicine, Jinan Central Hospital, Affiliated to Shandong University, Jinan, Shandong, China
| | - Shigang Zhao
- Center for Reproductive Medicine, Shandong University; The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, China; Shandong Provincial Clinical Medicine Research Center for reproductive health, Jinan, 250021, China
| | - Yanjun Zheng
- Center for Reproductive Medicine, Shandong University; The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, China; Shandong Provincial Clinical Medicine Research Center for reproductive health, Jinan, 250021, China
| | - Guimin Hao
- Department of Reproductive Medicine, the Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
| | - Yuhua Shi
- Center for Reproductive Medicine, Shandong University; The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, China; Shandong Provincial Clinical Medicine Research Center for reproductive health, Jinan, 250021, China.
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Hou Y, Wang Y, Xu S, Qi G, Wu X. Bioinformatics identification of microRNAs involved in polycystic ovary syndrome based on microarray data. Mol Med Rep 2019; 20:281-291. [PMID: 31115532 PMCID: PMC6579986 DOI: 10.3892/mmr.2019.10253] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 04/09/2019] [Indexed: 01/10/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine disease in women of reproductive age. MicroRNAs (miRNAs or miRs) serve important roles in the physiological and pathological process of PCOS. To identify PCOS-associated miRNAs, the dataset GSE84376 was extracted from the Gene Expression Omnibus database. Differentially expressed miRNAs (DE-miRNAs) were obtained from Gene-Cloud Biotechnology Information and potential target genes were predicted using TargetScan, DIANA-microT-CDS, miRDB and miRTarBase tools. Gene Ontology enrichment analysis was performed using Metascape and a protein-protein interaction network was constructed using Cytoscape. Transcription factors were obtained from FunRich. DE-miRNAs were verified by reverse transcription-quantitative PCR. At the screening phase, there were seven DE-miRNAs in the PCOS group not present in the control group. In total, 935 target genes were identified, which are involved in the development and maturation of oocytes. Mitogen-activated protein kinase 1, phosphatase and tensin homolog, cAMP responsive element binding protein 1, signal transducer and activator of transcription 3, interferon γ, Fms-related tyrosine kinase 1, transcription factor p65, insulin receptor substrate 1, DnaJ homolog superfamily C member 10 and casein kinase 2 α 1 were identified as the top 10 hub genes in the protein-protein interaction network. Specificity protein 1 was the most enriched transcription factor. At the validation phase, the levels of Homo sapiens (hsa)-miR-3188 and hsa-miR-3135b were significantly higher in the PCOS group than in the control group. In addition, the expression level of hsa-miR-3135b was significantly correlated with the number of oocytes retrieved, the fertilization rate and the cleavage rate (P<0.05). The present bioinformatics study on miRNAs may offer a novel understanding of the mechanism of PCOS, and may serve to identify novel miRNA therapeutic targets.
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Affiliation(s)
- Yan Hou
- The Second Hospital of Shanxi Medical University Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Yaoqin Wang
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, Shanxi 030013, P.R. China
| | - Suming Xu
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, Shanxi 030013, P.R. China
| | - Gaimei Qi
- Center of Reproductive Medicine, Children's Hospital of Shanxi and Women Health Center of Shanxi, Taiyuan, Shanxi 030013, P.R. China
| | - Xueqing Wu
- The Second Hospital of Shanxi Medical University Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
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Rashad NM, Ateya MAM, Saraya YS, Elnagar WM, Helal KF, Lashin MEB, Abdelrhman AA, Alil AE, Yousef MS. Association of miRNA - 320 expression level and its target gene endothelin-1 with the susceptibility and clinical features of polycystic ovary syndrome. J Ovarian Res 2019; 12:39. [PMID: 31064393 PMCID: PMC6505291 DOI: 10.1186/s13048-019-0513-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 04/16/2019] [Indexed: 01/01/2023] Open
Abstract
Background Polycystic ovary syndrome (PCOS) is a common reproductive endocrine disorder characterized by obesity, hyperandrogenism, and insulin resistance (IR). MicroRNAs (miRNAs) are small noncoding RNA associated with ovarian follicle development and female fertility. The objective of this study was to investigate the role of miRNA- 320 and its target gene endothelin-1 (ET-1) as a noninvasive biomarker of PCOS and to evaluate its possible relationship with IR as well as clinic-morphological features of PCOS. Methods Case-control study enrolled 60 patients with PCOS and 40 control group. We subdivided our PCOS women according to homeostasis model assessments of insulin resistance (HOMA-IR) to PCOS women with and without IR.ET-1 levels were measured by ELISA. We estimated the serum expression level of miRNA- 320 by real-time polymerase chain reaction. Results Our results revealed that serum miR-320 expression level was lower in PCOS patients compared to controls, in particular, PCOS women with IR. Moreover, it was negatively correlated to its target gene; ET-I as well as fasting serum insulin (FSI), HOMA-IR, PCOS phenotype; hirsutism score, ovarian volume and antral follicle count (AFC). In the PCOS group, linear regression analysis revealed that only hirsutism and HOMA-IR was the main predictor of expression levels of miRNA − 320 among other clinical and laboratory biomarkers of PCOS. The sensitivity and specificity of serum miR-320 expression levels in diagnosis PCOS was 80, and 97.5% respectively. Conclusion The Expression serum levels of miR-320 were lower in PCOS compared to control and it could be a noninvasive diagnostic biomarker of PCOS.
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Affiliation(s)
- Nearmeen M Rashad
- Internal Medicine Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
| | | | - Yasser S Saraya
- Obstetrics and Gynecology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Walid Mohamed Elnagar
- Obstetrics and Gynecology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Khaled Fathy Helal
- Obstetrics and Gynecology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamed El-Bakry Lashin
- Obstetrics and Gynecology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Amr Ahmed Abdelrhman
- Obstetrics and Gynecology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Ayman E Alil
- Internal Medicine Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mohammed S Yousef
- Internal Medicine Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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27
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Chen B, Xu P, Wang J, Zhang C. The role of MiRNA in polycystic ovary syndrome (PCOS). Gene 2019; 706:91-96. [PMID: 31054362 DOI: 10.1016/j.gene.2019.04.082] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 04/30/2019] [Indexed: 12/31/2022]
Abstract
Polycystic ovary syndrome (PCOS) is a prevalent endocrine disorder in reproductive-aged women. Clinical manifestations include hyperandrogenism, chronic anovulation, polycystic ovaries and being frequently accompanied by insulin resistance (IR) and obesity. MicroRNAs (miRNAs) are short non-coding RNAs which are involved in the regulation of gene expression at the post-transcriptional level. Altered miRNAs levels have been showed to be associated with a variety of diseases including diabetes, endometriosis and cancer. In recent years, more and more evidence suggests abnormal expression of miRNAs are detected in granulosa cells, theca cells, adipose tissue, follicular fluid, serum and peripheral blood leukocytes of women with PCOS and display vital role in the occurrence and development of PCOS. This will shed light on new strategies for the diagnosis and treatment of this syndrome. In this paper, we will review the recent research on miRNAs with respect to PCOS.
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Affiliation(s)
- Baiqi Chen
- School of Public Health, Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China
| | - Ping Xu
- Second Clinical College, Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China
| | - Jing Wang
- Department of Microbiology, Nanchang University, Nanchang, Jiangxi 330006, People's Republic of China
| | - Chunping Zhang
- Department of Cell Biology, School of Medicine, Nanchang University, Nanchang, Jiangxi 330006, China.
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28
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Luo H, Han Y, Liu J, Zhang Y. Identification of microRNAs in granulosa cells from patients with different levels of ovarian reserve function and the potential regulatory function of miR-23a in granulosa cell apoptosis. Gene 2018; 686:250-260. [PMID: 30453069 DOI: 10.1016/j.gene.2018.11.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/07/2018] [Accepted: 11/08/2018] [Indexed: 12/27/2022]
Abstract
This study aimed to determine the microRNA (miRNA) profiles in granulosa cells (GCs) from the follicular fluid (FF) of patients with varying levels of ovarian reserve function. We included 45 women undergoing in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) treatment. After collecting GCs from each patient, total RNA was extracted from 12 samples. Using Illumina/deep-sequencing technology, we analyzed the small RNAs in each group. Using the R package, we identified the differentially expressed (DE) miRNAs among patients with varying levels of ovarian reserve function. We identified 20 conserved and 3 novel miRNAs that were upregulated in the poor ovarian response (POR) group and 30 conserved miRNAs and 1 novel miRNA that were upregulated in the polycystic ovary syndrome (PCOS) group. Bioinformatics analysis revealed complementary pairing between miR-23a and the 3'-untranslated region (UTR) of the Sirt1 mRNA. miR-23a can regulate SIRT1 protein expression at the posttranscriptional level in GCs. Overexpressing miR-23a can inhibit the expression of SIRT1, decrease the stimulatory effect of SIRT1 on the ERK1/2 pathway, inhibit the expression of p-ERK1/2, and increase apoptosis in GCs. Previous studies confirmed that miR-23a targets SIRT1 and promotes apoptosis in GCs by inhibiting the ERK1/2 signaling pathway. This study provides a novel perspective regarding the role of miRNAs in the regulation of human GC apoptosis in vitro.
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Affiliation(s)
- Haining Luo
- Center for Reproductive Medicine, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300100, China
| | - Ying Han
- Center for Reproductive Medicine, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300100, China
| | - Jiao Liu
- Binhai Hospital of Tianjin Medical University General Hospital, Tianjin 300480, China
| | - Yunshan Zhang
- Center for Reproductive Medicine, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin 300100, China.
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29
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Zhou M, Jia X, Wan H, Wang S, Zhang X, Zhang Z, Wang Y. miR-34 regulates reproduction by inhibiting the expression of MIH, CHH, EcR, and FAMeT genes in mud crab Scylla paramamosain. Mol Reprod Dev 2018; 86:122-131. [PMID: 30286264 DOI: 10.1002/mrd.23063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 09/24/2018] [Indexed: 12/16/2022]
Abstract
Mud crab Scylla paramamosain is a commercially important species widely cultured in China. It is well known that the eyestalk regulates reproductive activities in crustaceans. In our previous research, we found that the miR-34 expression level in male eyestalk was significantly higher than that in females. Thus, we assumed that it may play an important role in regulating reproduction. In this study, we used bioinformatic tools to identify the target genes of miR-34 in eyestalk. Six reproduction-related genes with an intact 3'-untranslated region (UTR), including molt-inhibiting hormone (MIH), crustacean hyperglycemic hormone (CHH), vitellogenesis-inhibiting hormone, red pigment concentrating hormone, ecdysone receptor (EcR), and farnesoic acid methyltransferase (FAMeT) were identified. When the 3'-UTR plasmid vectors of the six genes were cotransfected with miR-34 mimics into 293FT cells, respectively, the luciferase activities of four genes (MIH, CHH, EcR, and FAMeT) were significantly decreased compared with that in the control group; on the contrary, when the six plasmid vectors were cotransfected with the miR-34 inhibitor respectively, the luciferase activities of four genes (MIH, CHH, EcR, and FAMeT) were significantly higher than that in the control group. When agomiR-34 and antagomiR-34 were injected into the eyestalk respectively in vivo, the expression levels of the MIH, CHH, EcR, and FAMeT genes were detected by a quantitative real-time polymerase chain reaction. The results showed that agomiR-34 suppressed the expression of the four genes, whereas antagomiR-34 enhanced their expression. These experimental results confirmed our hypothesis that miR-34 may indirectly regulate reproduction via binding to the 3'-UTRs of MIH, CHH, EcR, and FAMeT genes and suppressing their expression.
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Affiliation(s)
- Mingcan Zhou
- Fisheries College, Jimei University, Xiamen, China
| | - Xiwei Jia
- Fisheries College, Jimei University, Xiamen, China
| | - Haifu Wan
- Fisheries College, Jimei University, Xiamen, China
| | - Shuhong Wang
- Fisheries College, Jimei University, Xiamen, China
| | - Xin Zhang
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ziping Zhang
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yilei Wang
- Fisheries College, Jimei University, Xiamen, China
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30
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Gay S, Bugeon J, Bouchareb A, Henry L, Delahaye C, Legeai F, Montfort J, Le Cam A, Siegel A, Bobe J, Thermes V. MiR-202 controls female fecundity by regulating medaka oogenesis. PLoS Genet 2018; 14:e1007593. [PMID: 30199527 PMCID: PMC6147661 DOI: 10.1371/journal.pgen.1007593] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 09/20/2018] [Accepted: 07/26/2018] [Indexed: 12/12/2022] Open
Abstract
Female gamete production relies on coordinated molecular and cellular processes that occur in the ovary throughout oogenesis. In fish, as in other vertebrates, these processes have been extensively studied both in terms of endocrine/paracrine regulation and protein expression and activity. The role of small non-coding RNAs in the regulation of animal reproduction remains however largely unknown and poorly investigated, despite a growing interest for the importance of miRNAs in a wide variety of biological processes. Here, we analyzed the role of miR-202, a miRNA predominantly expressed in male and female gonads in several vertebrate species. We studied its expression in the medaka ovary and generated a mutant line (using CRISPR/Cas9 genome editing) to determine its importance for reproductive success with special interest for egg production. Our results show that miR-202-5p is the most abundant mature form of the miRNA and that it is expressed in granulosa cells and in the unfertilized egg. The knock out (KO) of mir-202 gene resulted in a strong phenotype both in terms of number and quality of eggs produced. Mutant females exhibited either no egg production or produced a dramatically reduced number of eggs that could not be fertilized, ultimately leading to no reproductive success. We quantified the size distribution of the oocytes in the ovary of KO females and performed a large-scale transcriptomic analysis approach to identified dysregulated molecular pathways. Together, cellular and molecular analyses indicate that the lack of miR-202 impairs the early steps of oogenesis/folliculogenesis and decreases the number of large (i.e. vitellogenic) follicles, ultimately leading to dramatically reduced female fecundity. This study sheds new light on the regulatory mechanisms that control the early steps of follicular development, including possible targets of miR-202-5p, and provides the first in vivo functional evidence that a gonad-predominant microRNA may have a major role in female reproduction. The role of small non-coding RNAs in the regulation of animal reproduction remains poorly investigated, despite a growing interest for the importance of miRNAs in a wide variety of biological processes. Here, we analyzed the role of miR-202, a miRNA predominantly expressed in gonads in vertebrate. We studied its expression in the medaka ovary and knocked out the mir-202 gene to study its importance for reproductive success. We showed that the lack of miR-202 results in the sterility of both females and males. In particular, it led to a drastic reduction of both the number and the quality of eggs produced by females. Mutant females exhibited either no egg production or produced a drastically reduced number of eggs that could not be fertilized, ultimately leading to no reproductive success. Quantitative histological and molecular analyses indicated that mir-202 KO impairs oocyte development and is also associated with the dysregulation of many genes that are critical for reproduction. This study sheds new light on the regulatory mechanisms that control oogenesis, including possible targets of miR-202-5p, and provides the first in vivo functional evidence that a gonad-predominant microRNA may have a major role in female reproduction.
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Affiliation(s)
| | | | | | | | - Clara Delahaye
- LPGP, INRA, Rennes, France
- Univ Rennes, INRIA, CNRS, IRISA, Rennes, France
| | - Fabrice Legeai
- Univ Rennes, INRIA, CNRS, IRISA, Rennes, France
- IGEPP, INRA BP35327, Le Rheu, France
| | | | | | - Anne Siegel
- Univ Rennes, INRIA, CNRS, IRISA, Rennes, France
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31
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Reza AMMT, Choi YJ, Han SG, Song H, Park C, Hong K, Kim JH. Roles of microRNAs in mammalian reproduction: from the commitment of germ cells to peri-implantation embryos. Biol Rev Camb Philos Soc 2018; 94:415-438. [PMID: 30151880 PMCID: PMC7379200 DOI: 10.1111/brv.12459] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 07/25/2018] [Accepted: 07/27/2018] [Indexed: 12/15/2022]
Abstract
MicroRNAs (miRNAs) are active regulators of numerous biological and physiological processes including most of the events of mammalian reproduction. Understanding the biological functions of miRNAs in the context of mammalian reproduction will allow a better and comparative understanding of fertility and sterility in male and female mammals. Herein, we summarize recent progress in miRNA‐mediated regulation of mammalian reproduction and highlight the significance of miRNAs in different aspects of mammalian reproduction including the biogenesis of germ cells, the functionality of reproductive organs, and the development of early embryos. Furthermore, we focus on the gene expression regulatory feedback loops involving hormones and miRNA expression to increase our understanding of germ cell commitment and the functioning of reproductive organs. Finally, we discuss the influence of miRNAs on male and female reproductive failure, and provide perspectives for future studies on this topic.
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Affiliation(s)
- Abu Musa Md Talimur Reza
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Centre (SRC), Konkuk University, Seoul, 143-701, Republic of Korea
| | - Yun-Jung Choi
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Centre (SRC), Konkuk University, Seoul, 143-701, Republic of Korea
| | - Sung Gu Han
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul, 05029, Republic of Korea
| | - Hyuk Song
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Centre (SRC), Konkuk University, Seoul, 143-701, Republic of Korea
| | - Chankyu Park
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Centre (SRC), Konkuk University, Seoul, 143-701, Republic of Korea
| | - Kwonho Hong
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Centre (SRC), Konkuk University, Seoul, 143-701, Republic of Korea
| | - Jin-Hoi Kim
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Centre (SRC), Konkuk University, Seoul, 143-701, Republic of Korea
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Rarani FZ, Borhani F, Rashidi B. Endometrial pinopode biomarkers: Molecules and microRNAs. J Cell Physiol 2018; 233:9145-9158. [PMID: 29968908 DOI: 10.1002/jcp.26852] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 05/10/2018] [Indexed: 12/12/2022]
Abstract
Ultrastructural changes on the apical surface of the luminal epithelium of the uterus are known as pinopodes. Their morphology in species and in special species is associated with different results about size, duration, and percentage of surface area covered by pinopodes. The content of pinopodes is different in rodents and humans. In mice and rats pinopodes have many vacuoles and no organelle that extends to the actin stalk above the microvilli. Human pinopodes do not have a large vacuole and contain the golgi complex, a rough endoplasmic reticulum, secretory vesicles, and mitochondria that extend from the entire cell surface. It has been suggested that pinopodes are good markers of endometrial receptivity and implantation window. There are several molecular markers related to the presence of pinopodes, including integrins, leukemia inhibiting factor (LIF), l-selectin, HOXA10, glutaredoxin, glycodelinA, heparin-binding epidermal growth factor, mucins, and microRNAs (miRNAs). Multiple lines of evidence have indicated that miRNAs could affect the expression of LIF and pinopodes in the endometrium and these molecules play key roles in implantation window processes. Here, we have summarized the morphology and function of pinopodes. Moreover, we have highlighted several molecules in relation to pinopodes that could be used as biomarkers.
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Affiliation(s)
- Fahimeh Zamani Rarani
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Borhani
- Department of Basic Sciences, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran.,Department of Basic Sciences, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahman Rashidi
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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33
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Yu T, Tang C, Zhang Y, Zhang R, Yan W. Microfluidics-based digital quantitative PCR for single-cell small RNA quantification. Biol Reprod 2018; 97:490-496. [PMID: 29024970 DOI: 10.1093/biolre/iox102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 08/29/2017] [Indexed: 01/02/2023] Open
Abstract
Quantitative analyses of small RNAs at the single-cell level have been challenging because of limited sensitivity and specificity of conventional real-time quantitative PCR methods. A digital quantitative PCR (dqPCR) method for miRNA quantification has been developed, but it requires the use of proprietary stem-loop primers and only applies to miRNA quantification. Here, we report a microfluidics-based dqPCR (mdqPCR) method, which takes advantage of the Fluidigm BioMark HD system for both template partition and the subsequent high-throughput dqPCR. Our mdqPCR method demonstrated excellent sensitivity and reproducibility suitable for quantitative analyses of not only miRNAs but also all other small RNA species at the single-cell level. Using this method, we discovered that each sperm has a unique miRNA profile.
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Affiliation(s)
- Tian Yu
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA
| | - Chong Tang
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA
| | - Ying Zhang
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA
| | - Ruirui Zhang
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA
| | - Wei Yan
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA.,Department of Biology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA
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Kim HG, Jung GY, Park SB, Cho YJ, Han M. Assessment of the effects of prostaglandins on myometrial and leiomyoma cells in vitro through microRNA profiling. Mol Med Rep 2018; 18:2499-2505. [PMID: 29901153 DOI: 10.3892/mmr.2018.9160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 06/11/2018] [Indexed: 11/06/2022] Open
Abstract
It is well known that prostaglandin (PG) E2 and PGF2α are secreted in copious amounts from the menstruating uterus. The aim of the present study was to determine whether PGs affect the growth of uterine leiomyomas (ULs) to the same extent as estrogen or progesterone (P4). The present study evaluated the expression of eight microRNAs (miRNAs) by reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) through treatment with estradiol (E2), P4, PGE2, PGF2α and each antagonist or cyclooxygenase‑2 (COX‑2) inhibitor of cultured leiomyoma and myometrial cells (LC and MC, respectively). The eight miRNAs were divided into two groups according to their primary biological action, namely apoptosis‑regulating miRNAs (let‑7a, miR‑21, miR‑26a and miR‑200a) and inflammation‑regulating miRNAs (miR‑29b, miR‑93, miR‑106b and miR‑100b). PGE2 induced significantly higher expression of the 3 anti‑apoptotic miRs, let‑7a, miR‑16a and miR‑200a, in LC when compared with the non‑treated control or E2. PGE2 significantly promoted a greater expression of let‑7a and miR‑26a in LC when compared with P4. Overall, PGE2 exerted the highest anti‑apoptotic and anti‑inflammatory effect in LC, which was comparable with E2. It was not observed among the inflammation‑regulating miRNAs in LC. PGF2α did not exert effects as prominent as those of PGE2. In MC, PGs and sex steroids exerted no similar effects on MC compared with LC. The present study demonstrated that PGE2 levels during menstruation may affect the growth of preexisting ULs without affecting the normal myometrium. Therefore, the control of secretion of PGs from the menstruating uterus or the administration of antagonists may be an alternative therapy for inhibiting the growth of ULs.
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Affiliation(s)
- Hwi Gon Kim
- Department of Obstetrics and Gynecology, Pusan National University Yangsan Hospital, Yangsan, Gyeongsangnam 50612, Republic of Korea
| | - Ga Young Jung
- Department of Obstetrics and Gynecology, Dong‑A University, College of Medicine, Busan 49201, Republic of Korea
| | - Seung Bin Park
- Department of Obstetrics and Gynecology, Dong‑A University, College of Medicine, Busan 49201, Republic of Korea
| | - Yeon Jean Cho
- Department of Obstetrics and Gynecology, Dong‑A University, College of Medicine, Busan 49201, Republic of Korea
| | - Myoungseok Han
- Department of Obstetrics and Gynecology, Dong‑A University, College of Medicine, Busan 49201, Republic of Korea
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Wang Y, Yang HM, Cao W, Li YB, Wang ZY. Deep sequencing identification of miRNAs in pigeon ovaries illuminated with monochromatic light. BMC Genomics 2018; 19:446. [PMID: 29884125 PMCID: PMC5994017 DOI: 10.1186/s12864-018-4831-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 05/29/2018] [Indexed: 11/26/2022] Open
Abstract
Background The use of light of different wavelengths has grown popular in the poultry industry. An optimum wavelength is believed to improve pigeon egg production, but little is known about the role of microRNAs (miRNAs) in the effects of monochromatic light on ovarian pigeon function. Herein, we harvested ovaries from pigeons reared under monochromatic light of different wavelength and performed deep sequencing on various tissues using an Illumina Solexa high-throughput instrument. Results We obtained 66,148,548, 67,873,805, and 71,661,771 clean reads from ovaries of pigeons reared under red light (RL), blue light (BL), and white light (WL), respectively. We identified 1917 known miRNAs in nine libraries, of which 524 were novel. Three and five differentially expressed miRNAs were identified in BL vs. WL and RL vs. WL groups, respectively. Quantitative reverse transcription PCR was used to validate differentially expressed miRNAs (miR-200, miR-122, and miR-205b). In addition, 5824 target genes were annotated as differentially expressed miRNAs, most of which are involved in reproductive pathways including oestrogen signalling, cell cycle, and oocyte maturation. Notably, ovarian miR-205b expression was significantly negatively correlated with its target 11β-hydroxysteroid dehydrogenase type 1 (HSD11B1). Conclusions miRNA–mRNA network analysis suggests that miR-205b targeting of HSD11B1 plays a key role in the effects of monochromatic light on pigeon egg production. These findings indicate that monochromatic light shortens the oviposition interval of pigeons, which may be useful for egg production and pigeon breeding. Electronic supplementary material The online version of this article (10.1186/s12864-018-4831-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ying Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, 225009, People's Republic of China
| | - Hai-Ming Yang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, 225009, People's Republic of China.
| | - Wei Cao
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, 225009, People's Republic of China
| | - Yang-Bai Li
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, 225009, People's Republic of China
| | - Zhi-Yue Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, 225009, People's Republic of China
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Furlong HC, Stämpfli MR, Gannon AM, Foster WG. Identification of microRNAs as potential markers of ovarian toxicity. J Appl Toxicol 2018; 38:744-752. [PMID: 29377183 PMCID: PMC5901046 DOI: 10.1002/jat.3583] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 11/30/2017] [Indexed: 12/17/2022]
Abstract
Exposure to environmental toxicants has been associated with ovarian dysfunction yet sensitive biomarkers of adverse effect are lacking. We previously demonstrated that cigarette smoke exposure induced decreased relative ovarian weight, increased follicle loss and granulosa cell autophagy in mice. We postulate that cigarette smoke exposure will induce changes in the epigenome that can be used to reveal potential sensitive biomarkers of ovarian toxicity. Therefore, we evaluated differences in expression of 940 microRNAs (miRNAs), environmentally responsive small non-coding genes that regulate expression of genes at the post-transcriptional level, in ovarian tissue from 8-week-old female C57BL/6 mice exposed to room air or cigarette smoke 5 days per week for 8 weeks. A total of 152 miRNAs were dysregulated in expression, 17 of which were examined with quantitative polymerase chain reaction analysis. Using an online miRNA database tool, complete lists of predicted miRNA gene targets were generated, 12 of which were measured for their expression levels with quantitative polymerase chain reaction. An online bioinformatics resource database, DAVID generated functional classification lists of the target genes and their associated biological pathways. Results of the present pilot study suggest that miR-379, miR-15b, miR-691, miR-872 and miR-1897-5p are potentially useful markers of ovarian toxicity and dysfunction. Examination of the expression pattern of the target mRNA for these miRNA species demonstrated that cigarette smoke exposure induced significant changes that affect mitogen-activated protein kinase signaling pathways. We therefore suggest that miRNAs could serve as sensitive markers of ovarian toxicity and elucidate affected pathways.
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Affiliation(s)
- Hayley C. Furlong
- Department of Obstetrics and GynecologyMcMaster UniversityHamiltonOntarioCanada
| | - Martin R. Stämpfli
- Department of Pathology and Molecular MedicineMcMaster UniversityHamiltonOntarioCanada
| | - Anne M. Gannon
- Department of Obstetrics and GynecologyMcMaster UniversityHamiltonOntarioCanada
| | - Warren G. Foster
- Department of Obstetrics and GynecologyMcMaster UniversityHamiltonOntarioCanada
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Abstract
Epigenetic influences have been postulated to affect the course of endometriosis. DNA methyltransferases, estrogen and progesterone receptors, micro-RNAs, and histone deacetylators, have shown differential expression in endometriosis compared with normal endometrium. Others such as aromatase, Steroid Factor-1, COX-2, and Homeobox A10 also have epigenetic modifications in endometriosis. Limitations in this area of research include heterogeneity in study design, patient populations, and methods of analysis. Larger, controlled studies are needed. Future targeted uses of this work may include using methylomes to noninvasively diagnose endometriosis, or targeting histone-deacetylase inhibitors for treatment.
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Haikalis ME, Wessels JM, Leyland NA, Agarwal SK, Foster WG. MicroRNA expression pattern differs depending on endometriosis lesion type†. Biol Reprod 2018; 98:623-633. [DOI: 10.1093/biolre/ioy019] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 01/23/2018] [Indexed: 12/11/2022] Open
Affiliation(s)
- Maria E Haikalis
- Department of Obstetrics & Gynecology, McMaster University, Hamilton, Ontario, Canada
| | - Jocelyn M Wessels
- Department of Obstetrics & Gynecology, McMaster University, Hamilton, Ontario, Canada
| | - Nicholas A Leyland
- Department of Obstetrics & Gynecology, McMaster University, Hamilton, Ontario, Canada
| | - Sanjay K Agarwal
- Center for Endometriosis Research and Treatment, University of California, San Diego, La Jolla, California, USA
| | - Warren G Foster
- Department of Obstetrics & Gynecology, McMaster University, Hamilton, Ontario, Canada
- Center for Endometriosis Research and Treatment, University of California, San Diego, La Jolla, California, USA
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RAS-related protein 1: an estrogen-responsive gene involved in development and molting-mediated regeneration of the female reproductive tract in chickens. Animal 2018; 12:1594-1601. [DOI: 10.1017/s1751731117003226] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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40
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Eldeib MG, Kandil YI, Abdelghany TM, Mansour OA, El-Zahabi MM. Alterations of microRNAs expression in response to 5-Fluorouracil, Oxaliplatin, and Irinotecan treatment of colorectal cancer cells. GENE REPORTS 2017. [DOI: 10.1016/j.genrep.2017.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Kim J, Lim W, Bazer FW, Song G. Rapid Communication: MicroRNA co-expression network reveals apoptosis in the reproductive tract during molting in laying hens. J Anim Sci 2017; 95:5100-5104. [PMID: 29293709 PMCID: PMC6292248 DOI: 10.2527/jas2017.1972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 09/01/2017] [Indexed: 01/28/2023] Open
Abstract
The aim of this study was to determine the regulatory mechanisms of molting and recrudescence via studying the micro-RNA (miRNA) expression in the oviduct of laying hens. We performed a cDNA microarray analysis in the magnum tissue from the oviduct to identify the whole miRNA profiles through the molting and recrudescence periods. A total of 35 laying hens (47-wk-old) were divided into 7 groups (0 d: a control group; 6 and 12 d: 2 molting-period groups fed on a high-zinc diet; and 20, 25, 30, and 35 d: 4 recrudescence-period groups fed on a normal diet after a 12-d period on a high-zinc diet). An miRNA co-expression network (miRCN) was generated using the differentially expressed miRNA (DEM) according to the entire data integration. The significantly co-expressed miRNA ( = 111) were highly differentially expressed from 12 to 20 d, which was a transition period between molting and recrudescence, while their expression patterns were contrary to the estrogen changes. The targets of highly connected miRNA ( = 12) indicated the significant biological pathways and gene ontology (GO) terms, such as MAPK and Wnt signaling and magnesium-ion binding, which are associated with apoptotic activities. These results suggest that the miRNA of the miRCN might play a role in the apoptotic progression of the reproductive tract during molting.
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Affiliation(s)
- J. Kim
- Animal Genomics and Bioinformatics Division, National Institute of Animal Science, RDA, 1500, Kongjwipatjwi-ro, Wanju, Jeonbuk 55365, Republic of Korea
| | - W. Lim
- Department of Biomedical Sciences, Catholic Kwandong University, Gangneung 25601, Republic of Korea
| | - F. W. Bazer
- Center for Animal Biotechnology and Genomics and Department of Animal Science, Texas A&M University, College Station 77843-2471
| | - G. Song
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
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MicroRNA Signaling in Embryo Development. BIOLOGY 2017; 6:biology6030034. [PMID: 28906477 PMCID: PMC5617922 DOI: 10.3390/biology6030034] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/03/2017] [Accepted: 09/12/2017] [Indexed: 02/06/2023]
Abstract
Expression of microRNAs (miRNAs) is essential for embryonic development and serves important roles in gametogenesis. miRNAs are secreted into the extracellular environment by the embryo during the preimplantation stage of development. Several cell types secrete miRNAs into biological fluids in the extracellular environment. These fluid-derived miRNAs have been shown to circulate the body. Stable transport is dependent on proper packaging of the miRNAs into extracellular vesicles (EVs), including exosomes. These vesicles, which also contain RNA, DNA and proteins, are on the forefront of research on cell-to-cell communication. Interestingly, EVs have been identified in many reproductive fluids, such as uterine fluid, where their miRNA content is proposed to serve as a mechanism of crosstalk between the mother and conceptus. Here, we review the role of miRNAs in molecular signaling and discuss their transport during early embryo development and implantation.
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Eledge MR, Yeruva L. Host and pathogen interface: microRNAs are modulators of disease outcome. Microbes Infect 2017; 20:410-415. [PMID: 28889971 DOI: 10.1016/j.micinf.2017.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 08/03/2017] [Accepted: 08/04/2017] [Indexed: 12/17/2022]
Abstract
Chlamydiae are a group of intracellular bacterium that infect a range of hosts and are responsible for the most common sexual transmitted infections, which could be the result of a plethora of factors leading to varied pathological outcomes. This review aims to show that Chlamydia possibly manipulates host defenses through microRNAs interaction.
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Affiliation(s)
- Michael R Eledge
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Arkansas Children's Research Institute, Little Rock, AR, USA; Arkansas Children's Nutrition Center, Little Rock, AR, USA
| | - Laxmi Yeruva
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Arkansas Children's Research Institute, Little Rock, AR, USA; Arkansas Children's Nutrition Center, Little Rock, AR, USA.
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44
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Jeong W, Bae H, Lim W, Bazer FW, Song G. Differential expression of neuregulin 1 (NRG1) and candidate miRNA regulating NRG1 transcription in the chicken oviduct in response to hormonal changes1. J Anim Sci 2017. [DOI: 10.2527/jas.2017.1663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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45
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Expression analysis of microRNAs and mRNAs in ovarian granulosa cells after microcystin-LR exposure. Toxicon 2017; 129:11-19. [PMID: 28161121 DOI: 10.1016/j.toxicon.2017.01.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/23/2017] [Accepted: 01/30/2017] [Indexed: 12/25/2022]
Abstract
Microcystin is a cyclic heptapeptide compounds which could cause female mammals' reproductive toxicity. Ovarian granulosa cells (GCs) are essential for the growth and development of follicles. In this study, after mouse granulosa cells (mGCs) treated with microcystin-LR (MC-LR) for 48 h, microRNAs (miRNAs) and mRNAs microarray technology were adopted to detect the expression of miRNAs and mRNAs. The results showed that 125 miRNAs and 283 mRNAs changed significantly, including 50 miRNAs down-regulated (fold change < -1.2), 75 miRNAs up-regulated (fold change > 1.2), 162 mRNAs down-regulated (fold change < -1.15) and 121 mRNAs up-regulated (fold change > 1.15) in treated group compared with the control group. Functional analysis showed that significant changed miRNAs and mRNAs are mainly involved in proliferation, apoptosis, immunity, metabolism and other biological processes of mGCs. By KEGG pathways analysis, we found that differentially expressed miRNAs and mRNAs mainly participated in apoptosis, formation of cancer, proliferation, production of hormones and other related signal pathways. miRNA-gene network analysis indicated that miR-29b-3p, miR-29a-3p, miR-29c-3p, miR-1906, miR-182-5p, growth factor receptor bound protein 2-associated protein 2 (Gab2), FBJ osteosarcoma oncogene (Fos), insulin-like growth factor 1 (Igf1), mannosidase 1, alpha (Man1a) are key miRNAs and genes. The microarray results were validated by real-time fluorescent quantitative PCR (qRT-PCR).
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46
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Conserved miR-10 family represses proliferation and induces apoptosis in ovarian granulosa cells. Sci Rep 2017; 7:41304. [PMID: 28112253 PMCID: PMC5256277 DOI: 10.1038/srep41304] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 12/16/2016] [Indexed: 01/06/2023] Open
Abstract
Granulosa cells (GCs) are essential somatic cells in the ovary and play an important role in folliculogenesis. Brain-derived neurotropic factor (BDNF) and the TGF-β pathway have been identified as a critical hormone and signalling pathway, respectively, in GCs. In this study, we found that a conserved microRNA family that includes miR-10a and miR-10b repressed proliferation and induced apoptosis in human, mouse, and rat GCs (hGCs, mGCs and rGCs, respectively). Moreover, essential hormones and growth factors in the follicle, such as FSH, FGF9 and some ligands in the TGF-β pathway (TGFβ1, Activin A, BMP4 and BMP15), inhibited miR-10a and miR-10b expression in GCs. In contrast, the miR-10 family suppressed many key genes in the TGF-β pathway, suggesting a negative feedback loop between the miR-10 family and the TGF-β pathway in GCs. By using bioinformatics approaches, RNA-seq, qPCR, FISH, immunofluorescence, Western blot and luciferase reporter assays, BDNF was identified as a direct target of the miR-10 family in GCs. Additionally, reintroduction of BDNF rescued the effects of miR-10a and miR-10b in GCs. Collectively, miR-10a and miR-10b repressed GC development during folliculogenesis by repressing BDNF and the TGF-β pathway. These effects by the miR-10 family on GCs are conserved among different species.
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47
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Genome-wide identification of novel ovarian-predominant miRNAs: new insights from the medaka (Oryzias latipes). Sci Rep 2017; 7:40241. [PMID: 28071684 PMCID: PMC5223123 DOI: 10.1038/srep40241] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 12/05/2016] [Indexed: 12/27/2022] Open
Abstract
MicroRNAs (miRNAs) are small, highly conserved non-coding RNAs that play important roles in the regulation of many physiological processes. However, the role of miRNAs in vertebrate oocyte formation (i.e., oogenesis) remains poorly investigated. To gain new insights into the roles of miRNAs in oogenesis, we searched for ovarian-predominant miRNAs. Using a microarray displaying 3,800 distinct miRNAs originating from different vertebrate species, we identified 66 miRNAs that are expressed predominantly in the ovary. Of the miRNAs exhibiting the highest overabundance in the ovary, 20 were selected for further analysis. Using a combination of QPCR and in silico analyses, we identified 8 novel miRNAs that are predominantly expressed in the ovary, including 2 miRNAs (miR-4785 and miR-6352) that exhibit strict ovarian expression. Of these 8 miRNAs, 7 were previously uncharacterized in fish. The strict ovarian expression of miR-4785 and miR-6352 suggests an important role in oogenesis and/or early development, possibly involving a maternal effect. Together, these results indicate that, similar to protein-coding genes, a significant number of ovarian-predominant miRNA genes are found in fish.
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48
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Wang CY, Wang SG, Wang JL, Zhou LY, Liu HJ, Wang YF. Effect of miRNA-27a and Leptin Polymorphisms on Risk of Recurrent Spontaneous Abortion. Med Sci Monit 2016; 22:3514-3522. [PMID: 27694792 PMCID: PMC5049305 DOI: 10.12659/msm.897147] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background The aim of this study was to investigate the possible associations of miRNA-27a and Leptin polymorphisms with the risk of recurrent spontaneous abortion (RSA). Material/Methods Between May 2013 and April 2015 at Shenzhen Longhua New District Central Hospital, we randomly recruited 138 RSA patients as the case group and another 142 normal pregnancy women as the control group. We used denaturing high-performance liquid chromatography (DHPLC) to determine the genotypes and allele frequencies of miRNA-27a rs895819 A/G and Leptin rs7799039 G/A. Results The GG genotype and G allele frequencies of miRNA-27a rs895819 A/G were higher in the case group than in the control group, and the AA genotype and A allele frequencies of Leptin rs7799039 G/A were also higher in the case group than in the control group (all P<0.05). MiRNA-27a rs895819 A/G and Leptin rs7799039 G/A polymorphisms increased the risk of RSA (Exp (B)=2.732, 95% CI=1.625~4.596, P=0.000; Exp (B)=4.081, 95% CI=1.817~9.164, P=0.001). GG-AA or AG-AA carriers had a higher risk of RSA. The miRNA-27a expression of AA carriers of miRNA-27a rs895819 was lower than that of AG+GG carriers both in the case and control groups (all P=0.024). The plasma leptin concentration of GG carriers was lower than that of GA+AA carriers in the case group (P=0.026). Conclusions The polymorphisms of miRNA-27a rs895819 A/G and Leptin rs7799039 G/A may contribute to an increased risk of RSA.
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Affiliation(s)
- Chun-Yan Wang
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China (mainland)
| | - Shu-Guang Wang
- Department of Obstetrics and Gynecology, Zaozhuang Maternity and Child Health Care Hospital, Zaozhuang, Shandong, China (mainland)
| | - Jia-Li Wang
- Clinical Laboratory, Linyi People's Hospital, Linyi, Shandong, China (mainland)
| | - Li-Ying Zhou
- Department of Obstetrics and Gynecology, Shenzhen Longhua New District Central Hospital, Shenzhen, Guangdong, China (mainland)
| | - Hong-Jun Liu
- Department of Urology, Linyi People's Hospital, Linyi, Shandong, China (mainland)
| | - Yi-Feng Wang
- Department of Obstetrics and Gynecology, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong, China (mainland)
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Xiong XR, Lan DL, Li J, Zi XD, Li MY. Identification of candidate miRNAs and expression profile of yak oocytes before and after in vitro maturation by high-throughput sequencing. Reprod Domest Anim 2016; 51:886-894. [PMID: 27562759 DOI: 10.1111/rda.12754] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 07/11/2016] [Indexed: 11/28/2022]
Abstract
Small RNA represents several unique non-coding RNA classes that have important function in a wide range of biological processes including development of germ cells and early embryonic, cell differentiation, cell proliferation and apoptosis in diverse organisms. However, little is known about their expression profiles and effects in yak oocytes maturation and early development. To investigate the function of small RNAs in the maturation process of yak oocyte and early development, two small RNA libraries of oocytes were constructed from germinal vesicle stage (GV) and maturation in vitro to metaphase II-arrested stage (M II) and then sequenced using small RNA high-throughput sequencing technology. A total of 9,742,592 and 12,168,523 clean reads were obtained from GV and M II oocytes, respectively. In total, 801 and 1,018 known miRNAs were acquired from GV and M II oocytes, and 75 miRNAs were found to be significantly differentially expressed: 47 miRNAs were upregulated and 28 miRNAs were downregulated in the M II oocytes compared to the GV stage. Among the upregulated miRNAs, miR-342 has the largest fold change (9.25-fold). Six highly expressed miRNAs (let-7i, miR-10b, miR-10c, miR-143, miR-146b and miR-148) were validated by real-time quantitative PCR (RT-qPCR) and consistent with the sequencing results. Furthermore, the expression patterns of two miRNAs and their potential targets were analysed in different developmental stages of oocytes and early embryos. This study provides the first miRNA profile in the mature process of yak oocyte. Seventy-five miRNAs are expressed differentially in GV and M II oocytes as well as among different development stages of early embryos, suggesting miRNAs involved in regulating oocyte maturation and early development of yak. These results showed specific miRNAs in yak oocytes had dynamic changes during meiosis. Further functional and mechanistic studies on the miRNAs during meiosis may beneficial to understanding the role of miRNAs on meiotic division.
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Affiliation(s)
- X R Xiong
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China.,College of Life Science and Technology, Southwest University for Nationalities, Chengdu, Sichuan, China
| | - D L Lan
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, Sichuan, China
| | - J Li
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, Sichuan, China
| | - X D Zi
- College of Life Science and Technology, Southwest University for Nationalities, Chengdu, Sichuan, China
| | - M Y Li
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
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Huang X, Liu C, Hao C, Tang Q, Liu R, Lin S, Zhang L, Yan W. Identification of altered microRNAs and mRNAs in the cumulus cells of PCOS patients: miRNA-509-3p promotes oestradiol secretion by targeting MAP3K8. Reproduction 2016; 151:643-55. [PMID: 27001999 DOI: 10.1530/rep-16-0071] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 03/21/2016] [Indexed: 02/06/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disorder in women and is characterised by polycystic ovaries, hyperandrogenism and chronic anovulation. Although the clinical and biochemical signs of PCOS are typically heterogeneous, abnormal folliculogenesis is considered a common characteristic of PCOS. Our aim is to identify the altered miRNA and mRNA expression profiles in the cumulus cells of PCOS patients to investigate their molecular function in the aetiology and pathophysiology of PCOS. In this study, the miRNA expression profiles of the cumulus cell samples isolated from five PCOS and five control patients were determined by an miRNA microarray. At the same time, the altered mRNA profiles of the same cumulus cell samples were also identified by a cDNA microarray. From the microarray data, 17 miRNAs and 1263 mRNAs showed significantly different expression in the PCOS cumulus cells. The differentially expressed miRNA-509-3p and its potential target gene (MAP3K8) were identified from the miRNA and mRNA microarrays respectively. The expression of miRNA-509-3p was up-regulated and MAP3K8 was down-regulated in the PCOS cumulus cells. The direct interaction between miRNA-509-3p and MAP3K8 was confirmed by a luciferase activity assay in KGN cells. In addition, miRNA-509-3p mimics or inhibitor transfection tests in KGN cells further confirmed that miRNA-509-3p improved oestradiol (E2) secretion by inhibiting the expression of MAP3K8 These results help to characterise the pathogenesis of anovulation in PCOS, especially the regulation of E2 production.
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Affiliation(s)
- Xin Huang
- Reproductive Medicine CentreAffiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, Yantai, Shandong, People's Republic of China
| | - Chang Liu
- Shandong University School of MedicineJinan, Shandong, People's Republic of China
| | - Cuifang Hao
- Reproductive Medicine CentreAffiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, Yantai, Shandong, People's Republic of China
| | - Qianqing Tang
- Department of LaboratoryAffiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, Yantai, Shandong, People's Republic of China
| | - Riming Liu
- Department of LaboratoryAffiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, Yantai, Shandong, People's Republic of China
| | - Shaoxia Lin
- Department of LaboratoryAffiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, Yantai, Shandong, People's Republic of China
| | - Luping Zhang
- Reproductive Medicine CentreAffiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, Yantai, Shandong, People's Republic of China
| | - Wei Yan
- Reproductive Medicine CentreAffiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, Yantai, Shandong, People's Republic of China
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