101
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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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102
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Navakanitworakul R, Hung WT, Gunewardena S, Davis JS, Chotigeat W, Christenson LK. Characterization and Small RNA Content of Extracellular Vesicles in Follicular Fluid of Developing Bovine Antral Follicles. Sci Rep 2016; 6:25486. [PMID: 27158133 PMCID: PMC4860563 DOI: 10.1038/srep25486] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 04/18/2016] [Indexed: 12/24/2022] Open
Abstract
Exosomes and microvesicles (i.e., extracellular vesicles: EVs) have been identified within ovarian follicular fluid and recent evidence suggests that EVs are able to elicit profound effects on ovarian cell function. While existence of miRNA within EVs has been reported, whether EV size and concentration as well as their cargos (i.e., proteins and RNA) change during antral follicle growth remains unknown. Extracellular vesicles isolated from follicular fluid of small, medium and large bovine follicles were similar in size, while concentration of EVs decreased progressively as follicle size increased. Electron microscopy indicated a highly purified population of the lipid bilayer enclosed vesicles that were enriched in exosome biomarkers including CD81 and Alix. Small RNA sequencing identified a large number of known and novel miRNAs that changed in the EVs of different size follicles. Ingenuity Pathway Analysis (IPA) indicated that miRNA abundant in small follicle EV preparations were associated with cell proliferation pathways, while those miRNA abundant in large follicle preparations were related to inflammatory response pathways. These studies are the first to demonstrate that EVs change in their levels and makeup during antral follicle development and point to the potential for a unique vesicle-mediated cell-to-cell communication network within the ovarian follicle.
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Affiliation(s)
- Raphatphorn Navakanitworakul
- Department Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas 66160 USA.,Department of Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112 Thailand.,Department of Biomedical Sciences, Faculty of Medicine, Prince of Songkla University, Hatyai, Songkhla, 90112 Thailand
| | - Wei-Ting Hung
- Department Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas 66160 USA
| | - Sumedha Gunewardena
- Department Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas 66160 USA.,Department of Biostatistics, University of Kansas Medical Center, Kansas City, Kansas 66160 USA
| | - John S Davis
- VA Nebraska-Western Iowa Health Care System and Department of Obstetrics and Gynecology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Wilaiwan Chotigeat
- Department of Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112 Thailand.,Center for Genomics and Bioinformatics Research, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112 Thailand
| | - Lane K Christenson
- Department Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas 66160 USA
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103
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Circulating microRNAs in follicular fluid, powerful tools to explore in vitro fertilization process. Sci Rep 2016; 6:24976. [PMID: 27102646 PMCID: PMC4840336 DOI: 10.1038/srep24976] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 04/08/2016] [Indexed: 12/19/2022] Open
Abstract
Circulating or “extracellular” microRNAs (miRNAs) detected in biological fluids, could be used as potential diagnostic and prognostic biomarkers of several disease, such as cancer, gynecological and pregnancy disorders. However, their contributions in female infertility and in vitro fertilization (IVF) remain unknown. This study investigated the expression profiles of five circulating miRNAs (let-7b, miR-29a, miR-30a, miR-140 and miR-320a) in human follicular fluid from 91 women with normal ovarian reserve and 30 with polycystic ovary syndrome (PCOS) and their ability to predict IVF outcomes. The combination of FF miR-30a, miR-140 and let-7b expression levels discriminated between PCOS and normal ovarian reserve with a specificity of 83.8% and a sensitivity of 70% (area under the ROC curve, AUC = 0.83 [0.73–0.92]; p < 0.0001). FF samples related to low number of mature oocytes (≤2) contained significant less miR-320a levels than those related to a number of mature oocytes >2 (p = 0.04). Moreover, FF let-7b predicted the development of expanded blastocysts with 70% sensitivity and 64.3% specificity (AUC = 0.67 [0.54–0.79]; p = 0.02) and FF miR-29a potential to predict clinical pregnancy outcome reached 0.68 [0.55–0.79] with a sensitivity of 83.3% and a specificity of 53.5% (p = 0.01). Therefore, these miRNAs could provide new helpful biomarkers to facilitate personalized medical care during IVF.
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104
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Sørensen AE, Wissing ML, Englund ALM, Dalgaard LT. MicroRNA Species in Follicular Fluid Associating With Polycystic Ovary Syndrome and Related Intermediary Phenotypes. J Clin Endocrinol Metab 2016; 101:1579-89. [PMID: 26771704 PMCID: PMC4880172 DOI: 10.1210/jc.2015-3588] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
CONTEXT Polycystic ovary syndrome (PCOS) has a largely unknown etiology and presents with a clinical heterogeneous patient group. Small noncoding microRNA (miRNA) might prove promising as biomarker candidates for PCOS patient stratification. Altered miRNA expression profiles have been observed in few studies. OBJECTIVE The aim was to assess the miRNA expression profile in follicular fluid from PCOS patients and healthy, regularly cycling, matched controls. DESIGN AND SETTING Experimental case-control study including 49 PCOS women (19 of which were hyperandrogenic and 30 normo-androgenic) and 21 healthy matched women all undergoing in vitro fertilization treatment. INTERVENTIONS AND MAIN OUTCOME Anthropometric and relevant clinical baseline measurements were obtained. Relative expression of miRNA levels were estimated using miRNA quantitative PCR arrays and validated by quantitative RT-PCR. Correlation between miRNAs and clinical relevant measurements was estimated. RESULTS PCOS women, both normo-androgenic and hyperandrogenic, had decreased levels of miR-24-3p, -29a, -151-3p, and -574-3p compared with controls. Furthermore, miR-518f-3p was differentially expressed within the PCOS group with high levels observed in the hyperandrogenic group compared with the normo-androgenic PCOS patients. Serum levels of total and free T were positively correlated with miR-518f-3p in PCOS subjects (P = .001). Distinction between PCOS and controls could be made using miR-151-3p alone with an area under the curve of 0.91 or a combination of four selected miRNAs (area under the curve, 0.93). Bioinformatic target analysis points to an involvement of these miRNAs in biological pathways involving regulation of cell proliferation, extracellular matrix, and processes in intermediary metabolism. CONCLUSION Our study provides evidence that the miRNA expression profile in follicular fluid is altered in PCOS and indicates that specific follicular fluid miRNAs are associated with phenotypical traits of PCOS. An altered miRNA profile holds potentials for new methods of PCOS patient stratification and may contribute to and in part explain the heterogeneous nature found within PCOS women.
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Affiliation(s)
- Anja E Sørensen
- Department of Science, Systems and Models (A.E.S., L.T.D.), Roskilde University, Roskilde, Denmark; Fertility Clinic Region Sjaelland (L.W., A.L.M.E.), Holbaek Hospital, Holbaek, Denmark; and The Danish Diabetes Academy (A.E.S.), Odense University Hospital, Odense C, Denmark
| | - Marie Louise Wissing
- Department of Science, Systems and Models (A.E.S., L.T.D.), Roskilde University, Roskilde, Denmark; Fertility Clinic Region Sjaelland (L.W., A.L.M.E.), Holbaek Hospital, Holbaek, Denmark; and The Danish Diabetes Academy (A.E.S.), Odense University Hospital, Odense C, Denmark
| | - Anne Lis M Englund
- Department of Science, Systems and Models (A.E.S., L.T.D.), Roskilde University, Roskilde, Denmark; Fertility Clinic Region Sjaelland (L.W., A.L.M.E.), Holbaek Hospital, Holbaek, Denmark; and The Danish Diabetes Academy (A.E.S.), Odense University Hospital, Odense C, Denmark
| | - Louise T Dalgaard
- Department of Science, Systems and Models (A.E.S., L.T.D.), Roskilde University, Roskilde, Denmark; Fertility Clinic Region Sjaelland (L.W., A.L.M.E.), Holbaek Hospital, Holbaek, Denmark; and The Danish Diabetes Academy (A.E.S.), Odense University Hospital, Odense C, Denmark
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105
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Liu HY, Huang YL, Liu JQ, Huang Q. Transcription factor‑microRNA synergistic regulatory network revealing the mechanism of polycystic ovary syndrome. Mol Med Rep 2016; 13:3920-8. [PMID: 27035648 PMCID: PMC4838149 DOI: 10.3892/mmr.2016.5019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Accepted: 03/14/2016] [Indexed: 01/19/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common type of endocrine disorder, affecting 5–11% of women of reproductive age worldwide. Transcription factors (TFs) and microRNAs are considered to have crucial roles in the developmental process of several diseases and have synergistic regulatory actions. However, the effects of TFs and microRNAs, and the patterns of their cooperation in the synergistic regulatory network of PCOS, remain to be elucidated. The present study aimed to determine the possible mechanism of PCOS, based on a TF-microRNA synergistic regulatory network. Initially, the differentially expressed genes (DEGs) in PCOS were identified using microarray data of the GSE34526 dataset. Subsequently, the TFs and microRNAs which regulated the DEGs of PCOS were identified, and a PCOS-associated TF-microRNA synergistic regulatory network was constructed. This network included 195 DEGs, 136 TFs and 283 microRNAs, and the DEGs were regulated by TFs and microRNAs. Based on topological and functional enrichment analyses, SP1, mir-355-5p and JUN were identified as potentially crucial regulators in the development of PCOS and in characterizing the regulatory mechanism. In conclusion, the TF-microRNA synergistic regulatory network constructed in the present study provides novel insight on the molecular mechanism of PCOS in the form of synergistic regulated model.
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Affiliation(s)
- Hai-Ying Liu
- Department of Reproductive Medicine Center, Key Laboratory for Reproductive Medicine of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Yu-Ling Huang
- Department of Reproductive Medicine Center, Key Laboratory for Reproductive Medicine of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Jian-Qiao Liu
- Department of Reproductive Medicine Center, Key Laboratory for Reproductive Medicine of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Qing Huang
- Department of Reproductive Medicine Center, Key Laboratory for Reproductive Medicine of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510000, P.R. China
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106
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Exosome-mediated communication in the ovarian follicle. J Assist Reprod Genet 2016; 33:303-311. [PMID: 26814471 DOI: 10.1007/s10815-016-0657-9] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 01/07/2016] [Indexed: 01/14/2023] Open
Abstract
Cells are able to produce and release different types of vesicles, such as microvesicles and exosomes, in the extracellular microenvironment. According to the scientific community, both microvesicles and exosomes are able to take on and transfer different macromolecules from and to other cells, and in this way, they can influence the recipient cell function. Among the different macromolecule cargos, the most studied are microRNAs. MicroRNAs are a large family of non-coding RNAs involved in the regulation of gene expression. They control every cellular process and their altered regulation is involved in human diseases. Their presence in mammalian follicular fluid has been recently demonstrated, and here, they are enclosed within microvesicles and exosomes or they can also be associated to protein complexes. The presence of microvesicles and exosomes carrying microRNAs in follicular fluid could represent an alternative mechanism of autocrine and paracrine communication inside the ovarian follicle. The outcomes from these studies could be important in basic reproductive research but could also be useful for clinical application. In fact, the characterization of extracellular vesicles in follicular fluid could improve reproductive disease diagnosis and provide biomarkers of oocyte quality in ART (Assisted Reproductive Treatment).
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107
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Xie S, Batnasan E, Zhang Q, Li Y. MicroRNA Expression is Altered in Granulosa Cells of Ovarian Hyperresponders. Reprod Sci 2016; 23:1001-10. [PMID: 26763554 DOI: 10.1177/1933719115625849] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Controlled ovarian stimulation plays an integral role in assisted reproduction technology, but individual patients have different responses to exogenous gonadotropins. In order to determine whether microRNAs (miRNAs) have a regulatory role in ovarian response, we profiled the expression of microRNAs in isolated ovarian granulosa cells collected from ovarian hyperresponders and normal responders using microarrays and validated the expression of selected miRNAs using quantitative polymerase chain reaction (PCR). There were 81 miRNAs differentially expressed between the 2 groups, with 45 increased and 36 decreased in the high response group. Bioinformatics analysis of these altered miRNAs and their target genes revealed some significantly enriched pathways, including regulation of the cell cycle, transcription, cell proliferation, and gonadotrophin releasing hormone signaling pathway. The expression of hsa-miR-513a-5p, hsa-miR-27b-3p, hsa-miR-19b-3p, hsa-miR-3201, hsa-miR-423-5p, hsa-miR-193b-5p, and hsa-miR-202-3p was validated by real-time PCR. Hsa-miR-423-5p, predicted to target anti-Mullerian hormone, cytochrome P450, family 19, subfamily A, polypeptide 1, methylenetetrahydrofolate reductase, progesterone receptor, and follicle stimulating hormone, β-polypeptide was found to have significantly decreased expression in the hyperresponders (P = .023). Hsa-miR-193b-5p also showed a tendency to be significantly decreased in the hyperresponders (P = .093). In conclusion, our findings provide evidence for altered miRNA expression in granulosa cells of women with ovarian hyperresponse, suggesting a role of miRNAs in regulating ovarian response to gonadotropins.
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Affiliation(s)
- Shi Xie
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Enkhzaya Batnasan
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qiong Zhang
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanping Li
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
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108
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Li D, Li C, Xu Y, Xu D, Li H, Gao L, Chen S, Fu L, Xu X, Liu Y, Zhang X, Zhang J, Ming H, Zheng L. Differential Expression of microRNAs in the Ovaries from Letrozole-Induced Rat Model of Polycystic Ovary Syndrome. DNA Cell Biol 2016; 35:177-83. [PMID: 26745201 DOI: 10.1089/dna.2015.3145] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) is a complex and heterogeneous endocrine disorder. To understand the pathogenesis of PCOS, we established rat models of PCOS induced by letrozole and employed deep sequencing to screen the differential expression of microRNAs (miRNAs) in PCOS rats and control rats. We observed vaginal smear and detected ovarian pathological alteration and hormone level changes in PCOS rats. Deep sequencing showed that a total of 129 miRNAs were differentially expressed in the ovaries from letrozole-induced rat model compared with the control, including 49 miRNAs upregulated and 80 miRNAs downregulated. Furthermore, the differential expression of miR-201-5p, miR-34b-5p, miR-141-3p, and miR-200a-3p were confirmed by real-time polymerase chain reaction. Bioinformatic analysis revealed that these four miRNAs were predicted to target a large set of genes with different functions. Pathway analysis supported that the miRNAs regulate oocyte meiosis, mitogen-activated protein kinase (MAPK) signaling, phosphoinositide 3-kinase/Akt (PI3K-Akt) signaling, Rap1 signaling, and Notch signaling. These data indicate that miRNAs are differentially expressed in rat PCOS model and the differentially expressed miRNA are involved in the etiology and pathophysiology of PCOS. Our findings will help identify miRNAs as novel diagnostic markers and therapeutic targets for PCOS.
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Affiliation(s)
- Dandan Li
- 1 Reproductive Medical Center, The Second Hospital of Jilin University , Changchun, People's Republic of China .,2 Department of Gynecological Oncology, Tumor Hospital of Jilin Province , Changchun, People's Republic of China
| | - Chunjin Li
- 3 College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University , Changchun, People's Republic of China
| | - Ying Xu
- 1 Reproductive Medical Center, The Second Hospital of Jilin University , Changchun, People's Republic of China
| | - Duo Xu
- 4 Department of Breast Oncology, Tumor Hospital of Jilin Province , Changchun, People's Republic of China
| | - Hongjiao Li
- 3 College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University , Changchun, People's Republic of China
| | - Liwei Gao
- 5 Department of Gynecology and Obstetrics, Zhengzhou Central Hospital Affiliated to Zhengzhou University , Zhengzhou, People's Republic of China
| | - Shuxiong Chen
- 3 College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University , Changchun, People's Republic of China
| | - Lulu Fu
- 1 Reproductive Medical Center, The Second Hospital of Jilin University , Changchun, People's Republic of China
| | - Xin Xu
- 1 Reproductive Medical Center, The Second Hospital of Jilin University , Changchun, People's Republic of China
| | - Yongzheng Liu
- 1 Reproductive Medical Center, The Second Hospital of Jilin University , Changchun, People's Republic of China
| | - Xueying Zhang
- 1 Reproductive Medical Center, The Second Hospital of Jilin University , Changchun, People's Republic of China
| | - Jingshun Zhang
- 1 Reproductive Medical Center, The Second Hospital of Jilin University , Changchun, People's Republic of China
| | - Hao Ming
- 1 Reproductive Medical Center, The Second Hospital of Jilin University , Changchun, People's Republic of China
| | - Lianwen Zheng
- 1 Reproductive Medical Center, The Second Hospital of Jilin University , Changchun, People's Republic of China
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109
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Huang X, Hao C, Bao H, Wang M, Dai H. Aberrant expression of long noncoding RNAs in cumulus cells isolated from PCOS patients. J Assist Reprod Genet 2015; 33:111-21. [PMID: 26650608 DOI: 10.1007/s10815-015-0630-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 11/29/2015] [Indexed: 01/14/2023] Open
Abstract
PURPOSE To describe the long noncoding RNA (lncRNA) profiles in cumulus cells isolated from polycystic ovary syndrome (PCOS) patients by employing a microarray and in-depth bioinformatics analysis. This information will help us understand the occurrence and development of PCOS. METHODS In this study, we used a microarray to describe lncRNA profiles in cumulus cells isolated from ten patients (five PCOS and five normal women). Several differentially expressed lncRNAs were chosen to validate the microarray results by quantitative RT-PCR (qRT-PCR). Then, the differentially expressed lncRNAs were classified into three subgroups (HOX loci lncRNA, enhancer-like lncRNA, and lincRNA) to deduce their potential features. Furthermore, a lncRNA/mRNA co-expression network was constructed by using the Cytoscape software (V2.8.3, http://www.cytoscape.org/ ). RESULTS We observed that 623 lncRNAs and 260 messenger RNAs (mRNAs) were significantly up- or down-regulated (≥2-fold change), and these differences could be used to discriminate cumulus cells of PCOS from those of normal patients. Five differentially expressed lncRNAs (XLOC_011402, ENST00000454271, ENST00000433673, ENST00000450294, and ENST00000432431) were selected to validate the microarray results using quantitative RT-PCR (qRT-PCR). The qRT-PCR results were consistent with the microarray data. Further analysis indicated that many differentially expressed lncRNAs were transcribed from chromosome 2 and may act as enhancers to regulate their neighboring protein-coding genes. Forty-three lncRNAs and 29 mRNAs were used to construct the coding-non-coding gene co-expression network. Most pairs positively correlated, and one mRNA correlated with one or more lncRNAs. CONCLUSIONS Our study is the first to determine genome-wide lncRNA expression patterns in cumulus cells isolated from PCOS patients by microarray. The results show that clusters of lncRNAs were aberrantly expressed in cumulus cells of PCOS patients compared with those of normal women, which revealed that lncRNAs differentially expressed in PCOS and normal women may contribute to the occurrence of PCOS and affect oocyte development.
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Affiliation(s)
- Xin Huang
- Reproductive Medicine Centre, Affiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, 20 Yuhuangding Road East, Yantai, Shandong, 264000, People's Republic of China.
| | - Cuifang Hao
- Reproductive Medicine Centre, Affiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, 20 Yuhuangding Road East, Yantai, Shandong, 264000, People's Republic of China.
| | - Hongchu Bao
- Reproductive Medicine Centre, Affiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, 20 Yuhuangding Road East, Yantai, Shandong, 264000, People's Republic of China.
| | - Meimei Wang
- Reproductive Medicine Centre, Affiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, 20 Yuhuangding Road East, Yantai, Shandong, 264000, People's Republic of China.
| | - Huangguan Dai
- Reproductive Medicine Centre, Affiliated Hospital of Qingdao Medical University, Yuhuangding Hospital of Yantai, 20 Yuhuangding Road East, Yantai, Shandong, 264000, People's Republic of China.
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110
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Sathyapalan T, David R, Gooderham NJ, Atkin SL. Increased expression of circulating miRNA-93 in women with polycystic ovary syndrome may represent a novel, non-invasive biomarker for diagnosis. Sci Rep 2015; 5:16890. [PMID: 26582398 PMCID: PMC4652283 DOI: 10.1038/srep16890] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 10/12/2015] [Indexed: 02/08/2023] Open
Abstract
MicroRNAs (miRNA) are a novel class of small noncoding single-stranded RNA molecules that regulate gene expression. There is increasing evidence of their importance in polycystic ovary syndrome (PCOS). The objective was to determine if miRNA-93 and miRNA-223 are differentially expressed in the circulation of women with PCOS compared to age matched women. A case-control study comparing women with PCOS (n = 25) to age and weight matched controls (n = 24) without PCOS was performed. MiRNA-93 and miRNA-223 were determined by total RNA reverse transcription. Both miRNA-93 and miRNA-223 were significantly increased relative to the control group (p < 0.01, p = 0.029 respectively). In both groups there was no correlation of either miRNA-93 or miRNA-223 with insulin, HOMA-IR, HOMA-β or testosterone levels. The area under the receiver operator characteristic curve for miR-223 and miR-93 was 0.66 and 0.72 respectively, suggesting miR-93 is a more efficient biomarker than miR-223 for diagnosis of PCOS. The combination of the two miRNAs together, tested using multiple logistic regression analysis, did not improve the diagnostic potential. In conclusion, circulating miRNA-93 and miRNA-223 were higher in women with PCOS compared to age and weight matched controls independent of insulin resistance and testosterone levels, and miR-93 may represent a novel diagnostic biomarker for PCOS.
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Affiliation(s)
- T Sathyapalan
- Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, UK.,Faculty of Medicine, Department of Surgery &Cancer, Imperial College, London, UK
| | - R David
- Faculty of Medicine, Department of Surgery &Cancer, Imperial College, London, UK
| | - N J Gooderham
- Faculty of Medicine, Department of Surgery &Cancer, Imperial College, London, UK
| | - S L Atkin
- Weill Cornell Medical College Qatar, Education City PO Box 24144, Doha, Qatar
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111
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MicroRNAs: From Female Fertility, Germ Cells, and Stem Cells to Cancer in Humans. Stem Cells Int 2015; 2016:3984937. [PMID: 26664407 PMCID: PMC4655303 DOI: 10.1155/2016/3984937] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 08/19/2015] [Indexed: 12/14/2022] Open
Abstract
MicroRNAs are a family of naturally occurring small noncoding RNA molecules that play an important regulatory role in gene expression. They are suggested to regulate a large proportion of protein encoding genes by mediating the translational suppression and posttranscriptional control of gene expression. Recent findings show that microRNAs are emerging as important regulators of cellular differentiation and dedifferentiation, and are deeply involved in developmental processes including human preimplantation development. They keep a balance between pluripotency and differentiation in the embryo and embryonic stem cells. Moreover, it became evident that dysregulation of microRNA expression may play a fundamental role in progression and dissemination of different cancers including ovarian cancer. The interest is still increased by the discovery of exosomes, that is, cell-derived vesicles, which can carry different proteins but also microRNAs between different cells and are involved in cell-to-cell communication. MicroRNAs, together with exosomes, have a great potential to be used for prognosis, therapy, and biomarkers of different diseases including infertility. The aim of this review paper is to summarize the existent knowledge on microRNAs related to female fertility and cancer: from primordial germ cells and ovarian function, germinal stem cells, oocytes, and embryos to embryonic stem cells.
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Lin L, Du T, Huang J, Huang LL, Yang DZ. Identification of differentially expressed microRNAs in the ovary of polycystic ovary syndrome with hyperandrogenism and insulin resistance. Chin Med J (Engl) 2015; 128:169-74. [PMID: 25591557 PMCID: PMC4837833 DOI: 10.4103/0366-6999.149189] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is the commonest endocrinopathy in women of reproductive age. The patients often develop insulin resistance (IR) or hyperinsulinemia despite manifesting anovulation and signs of hyperandrogenism. The cause and effect relationship of hyperinsulinemia and hyperandrogenemia (HA) is still debated. Micro-ribonucleic acids (miRNAs) have recently been shown to play a role in regulation of ovarian function. Our current study focused on the altered expression of miRNAs with PCOS. METHODS Ovarian theca interna tissues were obtained from 10 PCOS patients and 8 controls that were non-PCOS and had normal insulin sensitivity undergoing laparoscopy and/or ovarian wedge resection. Total RNA of all samples was extracted. We studied the repertoire of miRNAs in both PCOS and non-PCOS women by microarray hybridization. Bioinformatic analysis was performed for predicting targets of the differentially expressed miRNAs. Furthermore, selected miRNAs were validated by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). RESULTS A total of 27 miRNAs were differentially expressed in PCOS patients with respect to the controls in our discovery evaluationand two (miR-92a and miR-92b) of them were significantly downregulated in PCOS women in followed validation (P < 0.05). Targets prediction revealed that miR-92a targeted both GATA family of zinc finger transcription factor GATA-binding factor 6 (GATA6) and insulin receptor substrate proteins 2 (IRS-2). CONCLUSIONS MiRNAs are differentially expressed between PCOS patients and controls. We identified and validated two miRNAs-miR-92a and miR-92b. They are significantly downregulated and may be involved in the pathogenesis of PCOS.
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Affiliation(s)
| | | | | | | | - Dong-Zi Yang
- Department of Obstetrics and Gynecology, Memorial Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510120, China
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Perkel KJ, Tscherner A, Merrill C, Lamarre J, Madan P. The ART of selecting the best embryo: A review of early embryonic mortality and bovine embryo viability assessment methods. Mol Reprod Dev 2015; 82:822-38. [PMID: 26184077 DOI: 10.1002/mrd.22525] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Accepted: 07/10/2015] [Indexed: 12/14/2022]
Abstract
Animal reproductive biotechnology is continually evolving. Significant advances have been made in our understanding of early embryonic mortality and embryo development in domestic animals, which has improved the selection and success of in vitro technologies. Yet our knowledge is still relatively limited such that identifying a single embryo with the highest chance of survival and development for transfer remains challenging. While invasive methods such as embryo biopsy can provide useful information regarding the genetic status of the embryos, morphological assessment remains the most common evaluation. A recent shift, however, favors alternative, adjunct approaches for non-invasive assessment of an embryo's viability and developmental potential. Various analytical techniques have facilitated the evaluation of cellular health through the metabolome, the assessment of end products of cellular metabolism, or by analyzing spent media for small RNAs. This review discusses the application of noninvasive approaches for ascertaining the health and viability of in vitro-produced bovine embryos. A comparative analysis of noninvasive techniques for embryo assessment currently being investigated in cattle and humans is also discussed.
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Affiliation(s)
- Kayla J Perkel
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Allison Tscherner
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Casandra Merrill
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Jonathan Lamarre
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
| | - Pavneesh Madan
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada
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114
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[Circulating nucleic acids and infertility]. ACTA ACUST UNITED AC 2015; 43:593-8. [PMID: 26298813 DOI: 10.1016/j.gyobfe.2015.07.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 07/17/2015] [Indexed: 01/05/2023]
Abstract
Circulating nucleic acids (cell-free DNA and microRNAs) have for particularity to be easily detectable in the biological fluids of the body. Therefore, they constitute biomarkers of interest in female and male infertility care. Indeed, in female, they can be used to detect ovarian reserve disorders (polycystic ovary syndrome and low functional ovarian reserve) as well as to assess follicular microenvironment quality. Moreover, in men, their expression levels can vary in case of spermatogenesis abnormalities. Finally, circulating nucleic acids have also the ability to predict successfully the quality of in vitro embryo development. Their multiple contributions during assisted reproductive technology (ART) make of them biomarkers of interest, for the development of new diagnostic and/or prognostic tests, applied to our specialty. Circulating nucleic acids would so offer the possibility of personalized medical care for infertile couples in ART.
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Moreno JM, Núñez MJ, Quiñonero A, Martínez S, de la Orden M, Simón C, Pellicer A, Díaz-García C, Domínguez F. Follicular fluid and mural granulosa cells microRNA profiles vary in in vitro fertilization patients depending on their age and oocyte maturation stage. Fertil Steril 2015. [PMID: 26209829 DOI: 10.1016/j.fertnstert.2015.07.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To determine whether there is any difference in the follicular fluid (FF) microRNA (miRNA) profiles from in vitro fertilization (IVF) patients according to their age and oocyte maturation stage. DESIGN Observational prospective study. SETTING IVF clinic/hospital facilities. PATIENTS(S) We included 30 women with primary infertility undergoing intracytoplasmic sperm injection treatment and excluded patients with polycystic ovarian syndrome, endometriosis, severe male factor, and low ovarian reserve. INTERVENTION(S) After the collection of FF and granulosa cells from each patient, the samples were processed for total RNA extraction. RNA was pooled into different groups (three samples per pool) for microarray analysis to evaluate the expression of a total of 866 human miRNAs. Individual samples were analyzed to validate the pooled microarray results using real-time polymerase chain reaction. MAIN OUTCOME MEASURE(S) Evaluation of the expression of a total of 866 human miRNAs in FF and granulosa cells. RESULT(S) We identified only one differentially expressed miRNA, hsa-miR-424, which is present in higher proportions in FF from patients with advanced age. When we compared the FF from metaphase II (MII) versus GV (germinal vesicle) oocytes, we found 13 differentially expressed miRNAs (two up- and 11 downregulated). When we compared FF from MII versus MI, we found seven differentially expressed miRNAs in MII (three up- and four downregulated). CONCLUSION(S) We have described the FF miRNA profiles according to IVF patients' age and the maturation stage of their oocytes. This descriptive study may aid our understanding of the physiology and regulation of oocyte maturation and could identify some potential miRNA biomarkers for this process. CLINICAL TRIAL REGISTRATION NUMBER Not applicable.
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Affiliation(s)
- Juan Manuel Moreno
- Fundación Instituto Valenciano de Infertilidad, Instituto Universitario IVI, Valencia, Spain
| | - María José Núñez
- Reproductive Medicine Research Group, Instituto de Investigación Sanitaria La Fe, La Fe University Hospital, Valencia, Spain
| | - Alicia Quiñonero
- Fundación Instituto Valenciano de Infertilidad, Instituto Universitario IVI, Valencia, Spain
| | - Sebastian Martínez
- Fundación Instituto Valenciano de Infertilidad, Instituto Universitario IVI, Valencia, Spain
| | - Marina de la Orden
- Reproductive Medicine Research Group, Instituto de Investigación Sanitaria La Fe, La Fe University Hospital, Valencia, Spain
| | - Carlos Simón
- Fundación Instituto Valenciano de Infertilidad, Instituto Universitario IVI, Valencia, Spain; INCLIVA Biomedical Research Institute, Valencia, Spain; Department of Obstetrics and Gynecology, Stanford University, Stanford, California
| | - Antonio Pellicer
- Fundación Instituto Valenciano de Infertilidad, Instituto Universitario IVI, Valencia, Spain; Reproductive Medicine Research Group, Instituto de Investigación Sanitaria La Fe, La Fe University Hospital, Valencia, Spain
| | - César Díaz-García
- Reproductive Medicine Research Group, Instituto de Investigación Sanitaria La Fe, La Fe University Hospital, Valencia, Spain
| | - Francisco Domínguez
- Fundación Instituto Valenciano de Infertilidad, Instituto Universitario IVI, Valencia, Spain; INCLIVA Biomedical Research Institute, Valencia, Spain.
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Liu S, Zhang X, Shi C, Lin J, Chen G, Wu B, Wu L, Shi H, Yuan Y, Zhou W, Sun Z, Dong X, Wang J. Altered microRNAs expression profiling in cumulus cells from patients with polycystic ovary syndrome. J Transl Med 2015. [PMID: 26198660 PMCID: PMC4508762 DOI: 10.1186/s12967-015-0605-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Background Polycystic ovary syndrome (PCOS) is a common endocrine disorder in women of reproductive age, and oocyte developmental competence is altered in patients with PCOS. In recent years microRNAs (miRNAs) have emerged as important regulators of gene expression, the aim of the study was to study miRNAs expression patterns of cumulus cells from PCOS patients. Methods The study included 20 patients undergoing in vitro fertilization (IVF) and intra-cytoplasmic sperm injection (ICSI): 10 diagnosed with PCOS and 10 matching controls. We used deep sequencing technology to identify the miRNAs differentially expressed in the cumulus cells of PCOS. Results There were 17 differentially expressed miRNAs in PCOS cumulus cells, including 10 miRNAs increase and 7 miRNAs decrease. These miRNAs were predicted to target a large set of genes with different functions, including Wnt- and MAPK- signaling pathways, oocyte meiosis, progesterone-mediated oocyte maturation and cell cycle. Unsupervised hierarchical clustering analysis demonstrated that there was a specific miRNAs expression pattern in PCOS cumulus cells. Conclusion We found that the miRNAs expression profile was different in cumulus cells isolated from PCOS patients compared with control. This study provided new evidence for understanding the pathogenesis of PCOS.
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Affiliation(s)
- Suying Liu
- Department of In-Vitro Fertilization, Shanghai Zhongshan Hospital, Shanghai, China.
| | - Xuan Zhang
- National Populations and Family Planning Key Laboratory of Contraceptive Drugs and Devices, The Shanghai Institute of Planned Parenthood Research (SIPPR), Shanghai, China.
| | - Changgen Shi
- National Populations and Family Planning Key Laboratory of Contraceptive Drugs and Devices, The Shanghai Institute of Planned Parenthood Research (SIPPR), Shanghai, China.
| | - Jimin Lin
- Institute of Biochemistry and Cell Biology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Guowu Chen
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Shanghai Jiai Genetics and IVF Institute, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China. .,Medical School of Fudan University, Shanghai, China.
| | - Bin Wu
- National Populations and Family Planning Key Laboratory of Contraceptive Drugs and Devices, The Shanghai Institute of Planned Parenthood Research (SIPPR), Shanghai, China.
| | - Ligang Wu
- Institute of Biochemistry and Cell Biology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Huijuan Shi
- National Populations and Family Planning Key Laboratory of Contraceptive Drugs and Devices, The Shanghai Institute of Planned Parenthood Research (SIPPR), Shanghai, China. .,Medical School of Fudan University, Shanghai, China.
| | - Yao Yuan
- National Populations and Family Planning Key Laboratory of Contraceptive Drugs and Devices, The Shanghai Institute of Planned Parenthood Research (SIPPR), Shanghai, China.
| | - Weijin Zhou
- National Populations and Family Planning Key Laboratory of Contraceptive Drugs and Devices, The Shanghai Institute of Planned Parenthood Research (SIPPR), Shanghai, China. .,Medical School of Fudan University, Shanghai, China.
| | - Zhaogui Sun
- National Populations and Family Planning Key Laboratory of Contraceptive Drugs and Devices, The Shanghai Institute of Planned Parenthood Research (SIPPR), Shanghai, China. .,Medical School of Fudan University, Shanghai, China.
| | - Xi Dong
- Department of In-Vitro Fertilization, Shanghai Zhongshan Hospital, Shanghai, China.
| | - Jian Wang
- National Populations and Family Planning Key Laboratory of Contraceptive Drugs and Devices, The Shanghai Institute of Planned Parenthood Research (SIPPR), Shanghai, China. .,Medical School of Fudan University, Shanghai, China.
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Shi L, Liu S, Zhao W, Shi J. miR-483-5p and miR-486-5p are down-regulated in cumulus cells of metaphase II oocytes from women with polycystic ovary syndrome. Reprod Biomed Online 2015; 31:565-72. [PMID: 26283014 DOI: 10.1016/j.rbmo.2015.06.023] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 06/25/2015] [Accepted: 06/30/2015] [Indexed: 01/08/2023]
Abstract
The aim of this study was to compare the expression of microRNAs (miRNAs) in cumulus cells from polycystic ovary syndrome (PCOS) and non-PCOS women. In the present study, miRNA expression profiles of the cumulus cell samples were determined by miRNA microarrays. Quantification of selected miRNAs and predicted target genes was performed using quantitative real-time PCR (qRT-PCR). The results showed that miR-483-5p and miR-486-5p are significantly decreased in cumulus cells of PCOS patients PCOS (fold change >2, false discovery rate <0.001). qRT-PCR found that four predicted genes, SOCS3, SRF, PTEN and FOXO1, were significantly increased in PCOS cumulus cells (all P < 0.001), and IGF2 (host gene of miR-483-5p) was significantly decreased in PCOS cumulus cells (P < 0.001). These results indicated that miR-483-5p might play an important role in reducing insulin resistance, and that miR-486-5p might promote cumulus cell proliferation through activation of PI3K/Akt. The findings from this study provided new insights into the complex molecular mechanisms involved in PCOS by revealing pathways possibly regulated by miRNAs. The differences in miRNAs (miR-483-5p, miR-486-5p) and their target gene expression in cumulus cells may provide clues for future research and help to explain aberrant follicular development and subfertility in women with PCOS.
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Affiliation(s)
- Lin Shi
- Department of Immunology and Microbiology, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - Shan Liu
- Assisted Reproduction Center, Maternal and Child Health Care Hospital of Shaanxi Province, Xi'an 710003, China
| | - Wanqiu Zhao
- Assisted Reproduction Center, Maternal and Child Health Care Hospital of Shaanxi Province, Xi'an 710003, China
| | - Juanzi Shi
- Assisted Reproduction Center, Maternal and Child Health Care Hospital of Shaanxi Province, Xi'an 710003, China.
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Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrinopathy in women of reproductive age affecting various functions including reproduction and metabolism. This syndrome is associated with increased prevalence of subclinical cardiovascular disease as well as endometrial and ovarian cancer. This syndrome is highly heterogeneous and it is not yet clear which factors are responsible for the development of a particular phenotype. Current research has shown that the interaction of susceptible and protective genomic variants under the influence of environmental factors can modify the clinical presentation via epigenetic modifications. MicroRNA (miRNA) are regulators of gene expression. Altered miRNA expression has been associated with various diseases such as diabetes, insulin resistance, inflammation, and cancer. Several miRNA have been identified in PCOS. This review examines the role of epigenetics and miRNA in the pathophysiology of this complex disease process.
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Affiliation(s)
- Ioana R Ilie
- Department of Endocrinology, University of Medicine and Pharmacy "Iuliu-Hatieganu", Cluj-Napoca, Romania
| | - Carmen E Georgescu
- Department of Endocrinology, University of Medicine and Pharmacy "Iuliu-Hatieganu", Cluj-Napoca, Romania.
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119
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McGinnis LK, Luense LJ, Christenson LK. MicroRNA in Ovarian Biology and Disease. Cold Spring Harb Perspect Med 2015; 5:a022962. [PMID: 25986593 DOI: 10.1101/cshperspect.a022962] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
MicroRNAs (miRNAs) are posttranscriptional gene regulatory molecules that show regulated expression within ovarian tissue. Most research investigating miRNAs in the ovary has relied exclusively on in vitro analyses. In this review, we highlight those few studies in which investigators have illustrated an in vivo effect of miRNAs on ovarian function. We also provide a synopsis of how these small noncoding RNAs can impact ovarian disease. miRNAs have great potential as novel diagnostic biomarkers for the detection of ovarian disease and in the assisted reproductive technologies (ART) for selection of healthy viable oocytes and embryos.
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Affiliation(s)
- Lynda K McGinnis
- Department Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas 66160
| | - Lacey J Luense
- Epigenetics Program, Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Lane K Christenson
- Department Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, Kansas 66160
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Lv X, Chen P, Liu W. Down regulation of MiR-93 contributes to endometriosis through targeting MMP3 and VEGFA. Am J Cancer Res 2015; 5:1706-1717. [PMID: 26175939 PMCID: PMC4497437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 04/12/2015] [Indexed: 06/04/2023] Open
Abstract
OBJECTIVE This study aimed to explore the role of miRNAs in pathogenesis of endometriosis. METHODOLOGY Endometrial samples from 57 females with endometriosis and 44 non-endometriotic controls were compared for the expression of a selected group of miRNAs. The regulatory function on downstream target was also explored. RESULTS The expression of miR-93 and miR106a was significantly reduced in endometriotic samples compared to that in non-endometriotic samples. High levels of MMP3 and VEGFA were detected in more than 50% ectopic endometrium tissues. A negative association was found between the expression of miR-93 and the protein levels of MMP3 (Pearson correlation, r=-0.39, P=0.0025) or VEGFA (Pearson correlation, r=-0.37, P=0.0047) in samples from endometriosis patients. Mechanistically, miR-93 targeted MMP3 and VEGFA by directly binding to the 3'UTR of MMP3 and VEGFA mRNAs, and thereby inhibited the proliferation, migration and invasive capability of endometrial stromal cells (ESCs). CONCLUSION The finding of this study suggests that deregulation of miR-93 contribute to endometriosis by up-regulation of MMP3 and VEGFA and thus provide potential therapeutic targets for the treatment of endometriosis.
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Affiliation(s)
- Xuan Lv
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong UniversityShanghai 200127, China
| | - Pei Chen
- Liver Cancer Institute and Zhongshan Hospital, Fudan UniversityShanghai, China
| | - Wei Liu
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong UniversityShanghai 200127, China
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Xu B, Zhang YW, Tong XH, Liu YS. Characterization of microRNA profile in human cumulus granulosa cells: Identification of microRNAs that regulate Notch signaling and are associated with PCOS. Mol Cell Endocrinol 2015; 404:26-36. [PMID: 25622783 DOI: 10.1016/j.mce.2015.01.030] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 01/03/2015] [Accepted: 01/20/2015] [Indexed: 12/26/2022]
Abstract
CONTEXT Polycystic ovary syndrome (PCOS), a complex and heterogeneous endocrine condition, is characterized by polycystic ovaries, hyperandrogenism, insulin resistance and chronic anovulation. Cumulus granulosa cells surrounding the oocyte are involved in different aspects of PCOS pathology. Several studies suggested that miRNAs play an important regulatory role at the post-transcriptional level in cumulus granulosa cells. OBJECTIVE Our objective was to describe the altered miRNA expression profiles and miRNA targeted signaling pathways in PCOS. DESIGN Case-control study that involved 21 women with PCOS and 20 women without the disease (controls). The miRNA expression profiles of human cumulus granulosa cells were determined using next generation sequencing by Illumina Hiseq 2000. The differentially expressed miRNAs and novel miRNAs were validated by quantitative real-time PCR. The Notch3 and MAPK3 were demonstrated to be targeted by miR-483-5p based on quantitative real-time PCR, western blot and luciferase activity assay. RESULTS Compared with controls, a total of 59 known miRNA were identified that differentially expressed in PCOS cumulus granulosa cells, including 21 miRNAs increase and 38 miRNAs decrease. Moreover, the novel miRNAs were predicted in PCOS and control cumulus granulosa cells. The potential regulating roles of miRNA in pathophysiology of PCOS were analyzed by GO and KEGG pathway annotation, and several important processes were identified to be targeted by the differentially expressed miRNAs, such as Notch signaling, regulation of hormone, and energy metabolism. Furthermore, Notch3 and MAPK3, the members of Notch signaling and ERK-MAPK pathway, were demonstrated to be regulated by miR-483-5p based on negative expression correlation validation and detection of Notch3/MAPK3 expression after miR-483-5p mimics transfection. Dual luciferase activity assay suggested that Notch3 and MAPK3 were directly targeted by miR-483-5p. CONCLUSION Our data suggested that miRNAs and their targeted pathways (e.g. Notch signaling pathway) play important roles in the etiology and pathophysiology of PCOS, and provides novel candidates for molecular biomarkers or treatment targets in the research of female infertility associated with PCOS.
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Affiliation(s)
- Bo Xu
- Center for Reproductive Medicine, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei 230001, China.
| | - Yuan-Wei Zhang
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Xian-Hong Tong
- Center for Reproductive Medicine, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei 230001, China
| | - Yu-Sheng Liu
- Center for Reproductive Medicine, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei 230001, China
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Abstract
microRNAs constitute a large family of approximately 21-nucleotide-long, noncoding RNAs. They emerged more than 20 years ago as key posttranscriptional regulators of gene expression. The regulatory role of these small RNA molecules has recently begun to be explored in the human reproductive system. microRNAs have been shown to play an important role in control of reproductive functions, especially in the processes of oocyte maturation, folliculogenesis, corpus luteum function, implantation, and early embryonic development. Knockout of Dicer, the cytoplasmic enzyme that cleaves the pre-miRNA to its mature form, results in postimplantation embryonic lethality in several animal models, attributing to these small RNA vital functions in reproduction and development. Another intriguing characteristic of microRNAs is their presence in body fluids in a remarkably stable form that is protected from endogenous RNase activity. In this chapter we will describe the current knowledge on microRNAs, specifically relating to human gonadal cells. We will focus on their role in the ovarian physiologic process and ovulation dysfunction, regulation of spermatogenesis and male fertility, and putative involvement in human normal and aberrant trophoblast differentiation and invasion through the process of placentation.
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123
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Oocyte environment: follicular fluid and cumulus cells are critical for oocyte health. Fertil Steril 2014; 103:303-16. [PMID: 25497448 DOI: 10.1016/j.fertnstert.2014.11.015] [Citation(s) in RCA: 378] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 11/08/2014] [Accepted: 11/10/2014] [Indexed: 02/06/2023]
Abstract
Bidirectional somatic cell-oocyte signaling is essential to create a changing intrafollicular microenvironment that controls primordial follicle growth into a cohort of growing follicles, from which one antral follicle is selected to ovulate a healthy oocyte. Such intercellular communications allow the oocyte to determine its own fate by influencing the intrafollicular microenvironment, which in turn provides the necessary cellular functions for oocyte developmental competence, which is defined as the ability of the oocyte to complete meiosis and undergo fertilization, embryogenesis, and term development. These coordinated somatic cell-oocyte interactions attempt to balance cellular metabolism with energy requirements during folliculogenesis, including changing energy utilization during meiotic resumption. If these cellular mechanisms are perturbed by metabolic disease and/or maternal aging, molecular damage of the oocyte can alter macromolecules, induce mitochondrial mutations, and reduce adenosine triphosphate production, all of which can harm the oocyte. Recent technologies are now exploring transcriptional, translational, and post-translational events within the human follicle with the goal of identifying biomarkers that reliably predict oocyte quality in the clinical setting.
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Venkatesh T, Suresh PS, Tsutsumi R. New insights into the genetic basis of infertility. APPLICATION OF CLINICAL GENETICS 2014; 7:235-43. [PMID: 25506236 PMCID: PMC4259396 DOI: 10.2147/tacg.s40809] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Infertility is a disease of the reproductive system characterized by inability to achieve pregnancy after 12 or more months of regular unprotected sexual intercourse. A variety of factors, including ovulation defects, spermatogenic failure, parental age, obesity, and infections have been linked with infertility, in addition to specific karyotypes and genotypes. The study of genes associated with infertility in rodent models has expanded the field of translational genetics in identifying the underlying cause of human infertility problems. Many intriguing aspects of the molecular basis of infertility in humans remain poorly understood; however, application of genetic knowledge in this field looks promising. The growing literature on the genetics of human infertility disorders deserves attention and a critical concise summary is required. This paper provides information obtained from a systematic analysis of the literature related to current research into the genetics of infertility affecting both sexes.
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Affiliation(s)
- Thejaswini Venkatesh
- Institute for Stem Cell Biology and Regenerative Medicine, National Centre for Biological Sciences, Bangalore, India
| | | | - Rie Tsutsumi
- University of Tokushima, Institute of Health Bioscience, Department of Public Health and Nutrition, Tokushima, Japan
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125
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Abstract
It has become a current social trend for women to delay childbearing. However, the quality of oocytes from older females is compromised and the pregnancy rate of older women is lower. With the increased rate of delayed childbearing, it is becoming more and more crucial to understand the mechanisms underlying the compromised quality of oocytes from older women, including mitochondrial dysfunctions, aneuploidy and epigenetic changes. Establishing proper epigenetic modifications during oogenesis and early embryo development is an important aspect in reproduction. The reprogramming process may be influenced by external and internal factors that result in improper epigenetic changes in germ cells. Furthermore, germ cell epigenetic changes might be inherited by the next generations. In this review, we briefly summarise the effects of ageing on oocyte quality. We focus on discussing the relationship between ageing and epigenetic modifications, highlighting the epigenetic changes in oocytes from advanced-age females and in post-ovulatory aged oocytes as well as the possible underlying mechanisms.
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Affiliation(s)
- Zhao-Jia Ge
- Reproductive Medicine CenterHenan Provincial People's Hospital, #7 Weiwu Road, Jinshui District, Zhengzhou, Henan Province 450003, People's Republic of ChinaState Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, #1 Beichen West Road, Chaoyang District, Beijing 100101, People's Republic of ChinaReproductive Medicine CenterPeople's Hospital of Zhengzhou University, Zhengzhou, Henan Province 450003, People's Republic of ChinaDepartment of Veterinary PathobiologyUniversity of Missouri, Columbia, Missouri 65211, USA Reproductive Medicine CenterHenan Provincial People's Hospital, #7 Weiwu Road, Jinshui District, Zhengzhou, Henan Province 450003, People's Republic of ChinaState Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, #1 Beichen West Road, Chaoyang District, Beijing 100101, People's Republic of ChinaReproductive Medicine CenterPeople's Hospital of Zhengzhou University, Zhengzhou, Henan Province 450003, People's Republic of ChinaDepartment of Veterinary PathobiologyUniversity of Missouri, Columbia, Missouri 65211, USA Reproductive Medicine CenterHenan Provincial People's Hospital, #7 Weiwu Road, Jinshui District, Zhengzhou, Henan Province 450003, People's Republic of ChinaState Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, #1 Beichen West Road, Chaoyang District, Beijing 100101, People's Republic of ChinaReproductive Medicine CenterPeople's Hospital of Zhengzhou University, Zhengzhou, Henan Province 450003, People's Republic of ChinaDepartment of Veterinary PathobiologyUniversity of Missouri, Columbia, Missouri 65211, USA
| | - Heide Schatten
- Reproductive Medicine CenterHenan Provincial People's Hospital, #7 Weiwu Road, Jinshui District, Zhengzhou, Henan Province 450003, People's Republic of ChinaState Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, #1 Beichen West Road, Chaoyang District, Beijing 100101, People's Republic of ChinaReproductive Medicine CenterPeople's Hospital of Zhengzhou University, Zhengzhou, Henan Province 450003, People's Republic of ChinaDepartment of Veterinary PathobiologyUniversity of Missouri, Columbia, Missouri 65211, USA
| | - Cui-Lian Zhang
- Reproductive Medicine CenterHenan Provincial People's Hospital, #7 Weiwu Road, Jinshui District, Zhengzhou, Henan Province 450003, People's Republic of ChinaState Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, #1 Beichen West Road, Chaoyang District, Beijing 100101, People's Republic of ChinaReproductive Medicine CenterPeople's Hospital of Zhengzhou University, Zhengzhou, Henan Province 450003, People's Republic of ChinaDepartment of Veterinary PathobiologyUniversity of Missouri, Columbia, Missouri 65211, USA Reproductive Medicine CenterHenan Provincial People's Hospital, #7 Weiwu Road, Jinshui District, Zhengzhou, Henan Province 450003, People's Republic of ChinaState Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, #1 Beichen West Road, Chaoyang District, Beijing 100101, People's Republic of ChinaReproductive Medicine CenterPeople's Hospital of Zhengzhou University, Zhengzhou, Henan Province 450003, People's Republic of ChinaDepartment of Veterinary PathobiologyUniversity of Missouri, Columbia, Missouri 65211, USA
| | - Qing-Yuan Sun
- Reproductive Medicine CenterHenan Provincial People's Hospital, #7 Weiwu Road, Jinshui District, Zhengzhou, Henan Province 450003, People's Republic of ChinaState Key Laboratory of Reproductive BiologyInstitute of Zoology, Chinese Academy of Sciences, #1 Beichen West Road, Chaoyang District, Beijing 100101, People's Republic of ChinaReproductive Medicine CenterPeople's Hospital of Zhengzhou University, Zhengzhou, Henan Province 450003, People's Republic of ChinaDepartment of Veterinary PathobiologyUniversity of Missouri, Columbia, Missouri 65211, USA
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Ding CF, Chen WQ, Zhu YT, Bo YL, Hu HM, Zheng RH. Circulating microRNAs in patients with polycystic ovary syndrome. HUM FERTIL 2014; 18:22-9. [PMID: 25268995 DOI: 10.3109/14647273.2014.956811] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
AIM To explore the pattern of expression of circulating miRNAs in patients with polycystic ovary syndrome (PCOS). MATERIALS AND METHODS Microarray and qRT-PCR were used to investigate circulating miRNAs in PCOS during clinical diagnosis. The targets of dys-regulated miRNAs were predicted using bioinformatics, followed by function and pathway analysis using the databases of Gene Ontology and the KEGG pathway. RESULTS BMI, triglyceride, HOMA-IR, Testosterone and CRP levels were significantly higher, while estradiol was significantly lower in PCOS than in control groups. After SAM analysis, 5 circulating miRNAs were significantly up-regulated (let-7i-3pm, miR-5706, miR-4463, miR-3665, miR-638) and 4 (miR-124-3p, miR-128, miR-29a-3p, let-7c) were down-regulated in PCOS patients. Hierarchical clustering showed a general distinction between PCOS and control samples in a heat map. After joint prediction by different statistical methods, 34 and 41 genes targeted were up-and down-regulated miRNAs, in PCOS and controls, respectively. Further, GO and KEGG analyses revealed the involvement of the immune system, ATP binding, MAPK signaling, apoptosis, angiogenesis, response to reactive oxygen species and p53 signaling pathways in PCOS. CONCLUSIONS We report a novel non-invasive miRNA profile which distinguishes PCOS patients from healthy controls. The miRNA-target database may provide a novel understanding of PCOS and potential therapeutic targets.
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Affiliation(s)
- Cai-Fei Ding
- Reproductive Department, Integrated Chinese and Western Medicine Hospital of Zhejiang Province , Hangzhou , P. R. China
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Sørensen AE, Wissing ML, Salö S, Englund ALM, Dalgaard LT. MicroRNAs Related to Polycystic Ovary Syndrome (PCOS). Genes (Basel) 2014; 5:684-708. [PMID: 25158044 PMCID: PMC4198925 DOI: 10.3390/genes5030684] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 08/07/2014] [Accepted: 08/12/2014] [Indexed: 12/12/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common, though heterogeneous, endocrine aberration in women of reproductive age, with high prevalence and socioeconomic costs. The syndrome is characterized by polycystic ovaries, chronic anovulation and hyperandrogenism, as well as being associated with infertility, insulin resistance, chronic low-grade inflammation and an increased life time risk of type 2 diabetes. MicroRNAs (miRNAs) are small, non-coding RNAs that are able to regulate gene expression at the post-transcriptional level. Altered miRNA levels have been associated with diabetes, insulin resistance, inflammation and various cancers. Studies have shown that circulating miRNAs are present in whole blood, serum, plasma and the follicular fluid of PCOS patients and that they might serve as potential biomarkers and a new approach for the diagnosis of PCOS. In this review, recent work on miRNAs with respect to PCOS will be summarized. Our understanding of miRNAs, particularly in relation to PCOS, is currently at a very early stage, and additional studies will yield important insight into the molecular mechanisms behind this complex and heterogenic syndrome.
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Affiliation(s)
- Anja Elaine Sørensen
- Department of Science, Systems and Models, Roskilde University, Universitetsvej 1, Roskilde 4000, Denmark.
| | | | - Sofia Salö
- Department of Science, Systems and Models, Roskilde University, Universitetsvej 1, Roskilde 4000, Denmark.
| | | | - Louise Torp Dalgaard
- Department of Science, Systems and Models, Roskilde University, Universitetsvej 1, Roskilde 4000, Denmark.
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Imbar T, Eisenberg I. Regulatory role of microRNAs in ovarian function. Fertil Steril 2014; 101:1524-30. [DOI: 10.1016/j.fertnstert.2014.04.024] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 04/13/2014] [Accepted: 04/15/2014] [Indexed: 01/08/2023]
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