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Wu JS, Gong S, Zhang M, Ma RJ, Wang HL, Luo MJ, He N, Tan JH. Role and action mechanisms of miR-149 and miR-31 in regulating function of pig cumulus cells and oocytes. Theriogenology 2024; 220:84-95. [PMID: 38490113 DOI: 10.1016/j.theriogenology.2024.03.006] [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: 03/06/2024] [Accepted: 03/10/2024] [Indexed: 03/17/2024]
Abstract
Understanding the mechanisms for oocyte maturation and optimizing the protocols for in vitro maturation (IVM) are greatly important for improving developmental potential of IVM oocytes. The miRNAs expressed in cumulus cells (CCs) play important roles in oocyte maturation and may be used as markers for selection of competent oocytes/embryos. Although a recent study from our group identified several new CCs-expressed miRNAs that regulate cumulus expansion (CE) and CC apoptosis (CCA) in mouse oocytes, validation of these findings and further investigation of mechanisms of action in other model species was essential before wider applications. By using both in vitro and in vivo pig oocyte models with significant differences in CE, CCA and developmental potential, the present study validated that miR-149 and miR-31 improved CE and developmental potential while suppressing CCA of pig oocytes. We demonstrated that miR-149 and miR-31 targeted SMAD family member 6 (SMAD6) and transforming growth factor β2 (TGFB2), respectively, in the transforming growth factor-β (TGF-β) signaling. Furthermore, both miR-149 and miR-31 increased CE and decreased CCA via activating SMAD family member 2 (SMAD2) and increasing the expression of SMAD2 and SMAD family member 4. In conclusion, the present results show that miR-149 and miR-31 improved CE and developmental potential while suppressing CCA of pig oocytes by activating the TGF-β signaling, suggesting that they might be used as markers for pig oocyte quality.
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Affiliation(s)
- Jia-Shun Wu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China
| | - Shuai Gong
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China
| | - Min Zhang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China
| | - Rui-Jie Ma
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China
| | - Hui-Li Wang
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, PR China
| | - Ming-Jiu Luo
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China
| | - Nan He
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China.
| | - Jing-He Tan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City, 271018, PR China.
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Cañón-Beltrán K, Cajas YN, Almpanis V, Egido SG, Gutierrez-Adan A, González EM, Rizos D. MicroRNA-148b secreted by bovine oviductal extracellular vesicles enhance embryo quality through BPM/TGF-beta pathway. Biol Res 2024; 57:11. [PMID: 38520036 PMCID: PMC10960404 DOI: 10.1186/s40659-024-00488-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 02/29/2024] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND Extracellular vesicles (EVs) and their cargoes, including MicroRNAs (miRNAs) play a crucial role in cell-to-cell communication. We previously demonstrated the upregulation of bta-mir-148b in EVs from oviductal fluid of cyclic cows. This miRNA is linked to the TGF-β pathway in the cell proliferation. Our aim was to verify whether miR-148b is taken up by embryos through gymnosis, validate its target genes, and investigate the effect of miR-148b supplementation on early embryo development and quality. METHODS Zygotes were cultured in SOF + 0.3% BSA (Control) or supplemented with: 1 µM miR-148b mimics during: D1-D7 (miR148b) or D1-D4 (miR148b-OV: representing miRNA effect in the oviduct) or D4-D7 (miR148b-UT: representing miRNA effect in the uterus) or 1 µM control mimics was used during: D1-D7 (CMimic). Embryos at ≥ 16-cells and D7 blastocysts (BD7) were collected to examine the mRNA abundance of transcripts linked to the TGF-β pathway (TGFBR2, SMAD1, SMAD2, SMAD3, SMAD5, BMPR2, RPS6KB1, POU5F1, NANOG), total cell number (TC), trophectoderm (TE), and inner cell mass (ICM) were also evaluated. One-way ANOVA was used for all analyses. RESULTS We demonstrated that miR-148b can be taken up in both 16-cell embryos and BD7 by gymnosis, and we observed a decrease in SMAD5 mRNA, suggesting it's a potential target of miR-148b. Cleavage and blastocysts rates were not affected in any groups; however, supplementation of miR-148b mimics had a positive effect on TC, TE and ICM, with values of 136.4 ± 1.6, 92.5 ± 0.9, 43.9 ± 1.3 for miR148b and 135.3 ± 1.5, 92.6 ± 1.2, 42.7 ± 0.8, for miR148b-OV group. Furthermore, mRNA transcripts of SMAD1 and SMAD5 were decreased (P ≤ 0.001) in 16-cell embryos and BD7 from miR148b and miR148b-OV groups, while POU5F1 and NANOG were upregulated (P ≤ 0.001) in BD7 and TGFBR2 was only downregulated in 16-cell embryos. pSMAD1/5 levels were higher in the miR148b and miR148b-OV groups. CONCLUSIONS Our findings suggest that supplementation of bta-miR-148b mimics during the entire culture period (D1 - D7) or from D1 - D4 improves embryo quality and influences the TGF-β signaling pathway by altering the transcription of genes associated with cellular differentiation and proliferation. This highlights the importance of miR-148b on embryo quality and development.
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Affiliation(s)
- Karina Cañón-Beltrán
- Department of Biochemistry and Molecular Biology, Veterinary Faculty, Complutense University of Madrid (UCM), Madrid, Spain
- Programa de Medicina Veterinaria y Zootecnia, Corporación Universitaria del Huila (CORHUILA), Grupo Kyron, Huila, Colombia
| | - Yulia N Cajas
- Department Agrarian Production, Technical University of Madrid (UPM), Madrid, Spain
- Departamento de Ciencias Biológicas, Universidad Técnica Particular de Loja (UTPL), Loja, Ecuador
| | - Vasileios Almpanis
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (CSIC-INIA), Madrid, Spain
| | - Sandra Guisado Egido
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (CSIC-INIA), Madrid, Spain
| | - Alfonso Gutierrez-Adan
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (CSIC-INIA), Madrid, Spain
| | - Encina M González
- Department of Anatomy and Embryology, Veterinary Faculty, Complutense University of Madrid (UCM), Madrid, Spain.
| | - Dimitrios Rizos
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (CSIC-INIA), Madrid, Spain.
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da Silva Rosa PM, Bridi A, de Ávila Ferronato G, Prado CM, Bastos NM, Sangalli JR, Meirelles FV, Perecin F, da Silveira JC. Corpus luteum presence in the bovine ovary increase intrafollicular progesterone concentration: consequences in follicular cells gene expression and follicular fluid small extracellular vesicles miRNA contents. J Ovarian Res 2024; 17:65. [PMID: 38500173 PMCID: PMC10946200 DOI: 10.1186/s13048-024-01387-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 03/07/2024] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND It is well described that circulating progesterone (P4) plays a key role in several reproductive events such as oocyte maturation. However, during diestrus, when circulating P4 is at the highest concentrations, little is known about its local impact on the follicular cells such as intrafollicular P4 concentration due to corpus luteum (CL) presence within the same ovary. Based on that, our hypothesis is that the CL presence in the ovary during diestrus alters intrafollicular P4 concentrations, oocyte competence acquisition, follicular cells gene expression, and small extracellular vesicles (sEVs) miRNAs contents. RESULTS P4 hormonal analysis revealed that ipsilateral to the CL follicular fluid (iFF) presented higher P4 concentration compared to contralateral follicular fluid (cFF). Furthermore, oocyte maturation and miRNA biogenesis pathways transcripts (ADAMTS-1 and AGO2, respectively) were increased in cumulus and granulosa cells of iFF, respectively. Nevertheless, a RT-PCR screening of 382 miRNAs showed that three miRNAs were upregulated and two exclusively expressed in sEVs from iFF and are predicted to regulate cell communication pathways. Similarly, seven miRNAs were higher and two exclusively expressed from cFF sEVs and are predicted to modulate proliferation signaling pathways. CONCLUSION In conclusion, intrafollicular P4 concentration is influenced by the presence of the CL and modulates biological processes related to follicular cell development and oocyte competence, which may influence the oocyte quality. Altogether, these results are crucial to improve our knowledge about the follicular microenvironment involved in oocyte competence acquisition.
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Affiliation(s)
- Paola Maria da Silva Rosa
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil
| | - Alessandra Bridi
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil
| | - Giuliana de Ávila Ferronato
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil
| | - Cibele Maria Prado
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil
| | - Natália Marins Bastos
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil
| | - Juliano Rodrigues Sangalli
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil
| | - Flávio Vieira Meirelles
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil
| | - Felipe Perecin
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil
| | - Juliano Coelho da Silveira
- Department of Veterinary Medicine, College of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga, São Paulo, 13635-900, Brazil.
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Luo J, Sun Z. MicroRNAs in POI, DOR and POR. Arch Gynecol Obstet 2023; 308:1419-1430. [PMID: 36840768 DOI: 10.1007/s00404-023-06922-z] [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: 08/29/2022] [Accepted: 01/09/2023] [Indexed: 02/26/2023]
Abstract
PURPOSE Premature ovarian insufficiency (POI) is a clinical syndrome defined by loss of ovarian activity before the age of 40 years. However, the etiology of approximately 90% patients remains unknown. Diminished ovarian reserve (DOR) and poor ovarian response (POR) are related to POI in clinic. The main purpose of this review was to evaluate the roles of microRNAs (miRNAs) in the pathogenesis and therapeutic potential for POI, DOR and POR. METHODS A literature search was conducted using six databases (PubMed, EMBASE, Web of Science, Cochrane Library, CNKI and Wangfang Data) to obtain relevant studies. RESULTS This review enlightens expression profiles and functional studies of miRNAs in ovarian insufficiency in animal models and humans. Functional studies emphasized the role of miRNAs in steroidogenesis, granulosa cell proliferation/apoptosis, autophagy and follicular development by regulating target genes in specific pathways, such as the PI3K/AKT/mTOR, TGFβ, MAPK and Hippo pathways. Differentially expressed circulating miRNAs provided novel biomarkers for diagnosis and prediction, such as miR-22-3p and miR-21. Moreover, exosomes derived from stem cells restored ovarian function through miRNAs in chemotherapy-induced POI models. CONCLUSION Differential miRNA expression profiles in patients and animal models uncovered the underlying mechanisms and biomarkers of ovarian insufficiency. Exosomal miRNAs can restore ovarian function against chemotherapy-induced POI, which needs further investigation to develop novel preventive and therapeutic strategies in clinical practice.
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Affiliation(s)
- Jiali Luo
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Medical School, Fudan University, Shanghai, China
- Department of Obstetrics and Gynecology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, China
| | - Zhaogui Sun
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Medical School, Fudan University, Shanghai, China.
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Jian O, MengXia N, Shiyu X, QingXia M, QinYan Z, Jie D, Wei W, Jiaojiao W, Hong L, Yining H. MiR-145 is upregulated in the retarded preimplantation embryos and modulates cholesterol levels in mice preimplantation embryos through targeting Abca1. Reprod Biol Endocrinol 2022; 20:168. [PMID: 36510317 PMCID: PMC9743540 DOI: 10.1186/s12958-022-01044-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Preimplantation embryonic lethality is a driver of female infertility. Certain microRNAs (miRNAs) have previously been demonstrated to play important roles in the regulation of embryogenesis. METHODS Normally developing blastocysts and arrested embryos were collected from patients undergoing intracytoplasmic sperm injection (ICSI), and the expression of specific miRNAs therein was evaluated by qPCR. The overexpression of target molecule miR-145 in early mice embryos was achieved via oocyte microinjection, enabling the subsequent monitoring of how such overexpression impacted embryonic development. Bioinformatics approaches were utilized to identify putative miR-145 target mRNAs, and luciferase reporter assessments were implemented to confirm the ability of miR-145 to regulate Abca1 in HEK293T cells. The functional relationship between miR-145 and Abca1 in the mice's embryonic development was then confirmed through rescue assays. RESULTS Abnormally increased miR-145 expression was observed in patients' arrested embryos, and the exogenous overexpression of this miRNA significantly suppressed mural blastocyst formation. Mechanistically, miR-145 was found to bind to the 3'-untranslated area of the Abca1 mRNA in HK293T cells, thus suppressing its expression and increasing embryonic cholesterol levels. In line with the importance of these cholesterol levels to embryogenesis, the upregulation of Abca1 was sufficient to rescue the observed change in cholesterol levels and the associated retardation of mice embryonic development that occurred in response to the overexpression of miR-145. CONCLUSION The regulatory dynamics of the miR-145/Abca1 axis play an important role in shaping normal embryonic development.
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Affiliation(s)
- Ou Jian
- Center for Reproduction and Genetics, Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China
| | - Ni MengXia
- Center for Reproduction and Genetics, Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China
| | - Xing Shiyu
- Center for Reproduction and Genetics, Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China
| | - Meng QingXia
- Center for Reproduction and Genetics, Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China
| | - Zou QinYan
- Center for Reproduction and Genetics, Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China
| | - Ding Jie
- Center for Reproduction and Genetics, Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China
| | - Wang Wei
- Center for Reproduction and Genetics, Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China
| | - Wan Jiaojiao
- Peking Jabrehoo Med-Tech Co., Ltd, No. 19 Tianrong Road, Daxing Bio-medicine Industry Park, Daxing District, Peking, 102629, China
| | - Li Hong
- Center for Reproduction and Genetics, Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China.
| | - Huang Yining
- Peking Jabrehoo Med-Tech Co., Ltd, No. 19 Tianrong Road, Daxing Bio-medicine Industry Park, Daxing District, Peking, 102629, China.
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Li Y, Adur MK, Lonergan SM, Keating AF, Ross JW. MicroRNA21 inhibition affects porcine oocyte maturation and alters protein expression critical for metabolic pathway function. Mol Reprod Dev 2022; 89:443-458. [PMID: 36001642 PMCID: PMC9804257 DOI: 10.1002/mrd.23641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 06/08/2022] [Accepted: 08/12/2022] [Indexed: 01/05/2023]
Abstract
MicroRNA21 (MIR21) abundance in porcine oocytes and cumulus cells increases during in vitro maturation. The mechanism by which MIR21 regulates oocyte maturation and the effect on the developmental competence of subsequent embryos remains unclear. The objective of this study was to assess the function of MIR21 during porcine oocyte maturation and its effect on embryonic development. Treatment with peptide nucleic acid MIR21 inhibitor (MIR21-PNA), designed to specifically bind to and prevent MIR21 activity during in vitro oocyte maturation, decreased cumulus cell expansion, and the oocyte ability to achieve metaphase II maturation stage when compared to control groups. Following parthenogenetic activation, the cleavage rate at 48 h in the MIR21-PNA group was decreased (p ≤ 0.03) relative to the control groups. Additionally, liquid chromatography-mass spectrometry (LC-MS/MS) of oocyte and cumulus cell total protein following MIR21-PNA treatment during in vitro maturation identified changes in signaling pathways with primary involvement of glucose metabolism (GM) pathways. Furthermore, there was no difference (p = 0.21) in oocyte maturation of control and MIR21-PNA treated oocytes when cultured in pyruvate lacking medium. Finally, MIR21-PNA treatment decreased (p = 0.04) glutathione and increased (p = 0.07) reactive oxygen species production in the oocyte. These data suggest that MIR21 influences porcine oocyte maturation by regulating GM pathways in the cumulus-oocyte complex.
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Affiliation(s)
- Yunsheng Li
- Department of Animal ScienceIowa State UniversityAmesIowaUSA,College of Animal Science and TechnologyAnhui Agricultural UniversityHefeiChina
| | | | | | | | - Jason W. Ross
- Department of Animal ScienceIowa State UniversityAmesIowaUSA
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Kamijo S, Hamatani T, Sasaki H, Suzuki H, Abe A, Inoue O, Iwai M, Ogawa S, Odawara K, Tanaka K, Mikashima M, Suzuki M, Miyado K, Matoba R, Odawara Y, Tanaka M. MicroRNAs secreted by human preimplantation embryos and IVF outcome. Reprod Biol Endocrinol 2022; 20:130. [PMID: 36042522 PMCID: PMC9425991 DOI: 10.1186/s12958-022-00989-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 07/29/2022] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE To generate an effective embryo prediction model and identify a non-invasive evaluation method by analyzing microRNAs (miRNAs) in embryo culture medium. DESIGN Analysis of microRNA profiles from spent culture medium of blastocysts with good morphology that did or did not result in pregnancy. SETTING Clinical and experimental research. PATIENTS Sixty patients who underwent thawed embryo transfer of blastocysts after intracytoplasmic sperm injection. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) The association of miRNA abundance levels secreted by blastocysts in culture medium and implantation success. RESULTS Our RNA sequencing analysis found a total of 53 differentially expressed miRNAs in the culture media of pregnancy and non-pregnancy groups. Twenty-one miRNAs were analyzed for their potential to predict implantation success. Eight miRNAs (hsa-miR-191-5p, hsa-miR-320a, hsa-miR-92a-3p, hsa-miR-509-3p, hsa-miR-378a-3p, hsa-miR-28-3p, hsa-miR-512-5p, and hsa-miR-181a-5p) were further extracted from the results of a logistic regression analysis of qPCR Ct values. A prediction model for high-quality blastocysts was generated using the eight miRNAs, with an average accuracy of 0.82 by 5-fold cross validation. CONCLUSION We isolated blastocyst miRNAs that may predict implantation success and created a model to predict viable embryos. Increasing the number of investigated cases and further studying the effect of each miRNA on embryonic development is needed to refine the miRNA-based predictive model.
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Affiliation(s)
- Shintaro Kamijo
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Toshio Hamatani
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Hiroyuki Sasaki
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | | | - Akane Abe
- Fertility Clinic Tokyo, Tokyo, Japan
| | - Osamu Inoue
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Maki Iwai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Seiji Ogawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
| | | | | | | | | | - Kenji Miyado
- Center for Regenerative Medicine, National Center for Child Health and Development (NCCHD), Tokyo, Japan
| | | | | | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi Shinjuku-ku, Tokyo, 160-8582, Japan
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Aoki S, Inoue Y, Shinozawa A, Tanaka K, Shirasuna K, Iwata H. miR-17-5p in bovine oviductal fluid affects embryo development. Mol Cell Endocrinol 2022; 551:111651. [PMID: 35452772 DOI: 10.1016/j.mce.2022.111651] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/03/2022] [Accepted: 04/16/2022] [Indexed: 11/22/2022]
Abstract
This study identified microRNAs (miRNAs) in bovine oviductal fluids (OFs) and examined the effect of miR-17-5p in OFs on embryonic development to the blastocyst stage. Small RNA-seq of extracellular vesicles of OFs revealed 242 miRNAs. Additionally, analyzing expressions of randomly selected OF-miRNAs with RT-qPCR in the culture medium of oviductal epithelial cells indicated that the abundance of miRNAs in OFs increased during the luteal phase. miR-17-5p mimic-treated eight-cell-stage zona pellucida-free embryos showed improved embryonic development to the blastocyst stage. The effect of the miR-17-5p mimic was confirmed using a dual-luciferase assay and immunostaining. In addition, RNA-seq of the miR-17-5p mimic- or control-treated embryos revealed differentially expressed genes (DEGs), suggesting possible pathways that overlapped with the in silico-predicted pathways for miR-17-5p targeting genes. Furthermore, ingenuity pathway analysis of DEG predicted miR-17 to be a significant upstream regulator. Our results suggest that miR-17-5p in OFs regulates embryonic development in bovines.
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Affiliation(s)
- Sogo Aoki
- Department of Animal Science, Graduate School of Agriculture, Tokyo University of Agriculture, Funako, 1737, Atsugi City, Kanagawa, Japan
| | - Yuki Inoue
- Department of Animal Science, Graduate School of Agriculture, Tokyo University of Agriculture, Funako, 1737, Atsugi City, Kanagawa, Japan
| | - Akihisa Shinozawa
- NODAI Genome Research Center, Tokyo University of Agriculture, Sakuragaoka 1-1-1, Setagaya, Tokyo, Japan
| | - Keisuke Tanaka
- NODAI Genome Research Center, Tokyo University of Agriculture, Sakuragaoka 1-1-1, Setagaya, Tokyo, Japan
| | - Koumei Shirasuna
- Department of Animal Science, Graduate School of Agriculture, Tokyo University of Agriculture, Funako, 1737, Atsugi City, Kanagawa, Japan
| | - Hisataka Iwata
- Department of Animal Science, Graduate School of Agriculture, Tokyo University of Agriculture, Funako, 1737, Atsugi City, Kanagawa, Japan.
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9
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Luo X, Chen X, Lv Y, Han Y, Qu X, Zhang Y, Li X, Yu Y, Jin Y. MicroRNA-101 regulates oocyte maturation in vitro via targeting HAS2 in porcine cumulus cells. Theriogenology 2022; 187:119-126. [DOI: 10.1016/j.theriogenology.2022.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 04/23/2022] [Accepted: 04/24/2022] [Indexed: 10/18/2022]
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10
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Strączyńska P, Papis K, Morawiec E, Czerwiński M, Gajewski Z, Olejek A, Bednarska-Czerwińska A. Signaling mechanisms and their regulation during in vivo or in vitro maturation of mammalian oocytes. Reprod Biol Endocrinol 2022; 20:37. [PMID: 35209923 PMCID: PMC8867761 DOI: 10.1186/s12958-022-00906-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 02/06/2022] [Indexed: 12/18/2022] Open
Abstract
In vitro fertilization (IVF) is currently one of the most effective methods of infertility treatment. An alternative to commonly used ovarian hyperstimulation can become extracorporeal maturation of oocytes (in vitro maturation; IVM). Fertilization and normal development of the embryo depends on the cytoplasmic, nuclear and genomic maturity of the oocyte. The microenvironment of the ovarian follicle and maternal signals, which mediate bidirectional communication between granulosa, cumulus and oocyte cells, influence the growth, maturation and acquisition of oocyte development capability. During oogenesis in mammals, the meiosis is inhibited in the oocyte at the prophase I of the meiotic division due to the high cAMP level. This level is maintained by the activity of C-type natriuretic peptide (CNP, NPPC) produced by granulosa cells. The CNP binds to the NPR2 receptor in cumulus cells and is responsible for the production of cyclic guanosine monophosphate (cGMP). The cGMP penetrating into the oocyte through gap junctions inhibits phosphodiesterase 3A (PDE3A), preventing cAMP hydrolysis responsible for low MPF activity. The LH surge during the reproductive cycle reduces the activity of the CNP/NPR2 complex, which results in a decrease in cGMP levels in cumulus cells and consequently in the oocyte. Reduced cGMP concentration unblocks the hydrolytic activity of PDE3A, which decreases cAMP level inside the oocyte. This leads to the activation of MPF and resumption of meiosis. The latest IVM methods called SPOM, NFSOM or CAPA IVM consist of two steps: prematuration and maturation itself. Taking into account the role of cAMP in inhibiting and then unblocking the maturation of oocytes, they have led to a significant progress in terms of the percentage of mature oocytes in vitro and the proportion of properly developed embryos in both animals and humans.
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Affiliation(s)
- Patrycja Strączyńska
- Department of Gynecology, Obstetrics and Oncological Gynecology in Bytom, Medical University of Silesia, Katowice, Poland
- Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Katowice, Poland
- Gyncentrum Fertility Clinic, Katowice, Poland
| | - Krzysztof Papis
- Center for Translational Medicine, Warsaw University of Life Sciences, Warsaw, Poland.
- nOvum Fertility Clinic, Warsaw, Poland.
| | - Emilia Morawiec
- Gyncentrum Fertility Clinic, Katowice, Poland
- Department of Microbiology, Faculty of Medicine in Zabrze, University of Technology in Katowice, Katowice, Poland
| | | | - Zdzisław Gajewski
- Center for Translational Medicine, Warsaw University of Life Sciences, Warsaw, Poland
| | - Anita Olejek
- Department of Gynecology, Obstetrics and Oncological Gynecology in Bytom, Medical University of Silesia, Katowice, Poland
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11
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Winter E, Cisilotto J, Silva AH, Rosolen D, Fabichak AP, Rode MP, Creczynski-Pasa TB. MicroRNAs: Potential biomarkers for reproduction, diagnosis, prognosis, and therapeutic in domestic animals. Res Vet Sci 2021; 142:117-132. [PMID: 34942556 DOI: 10.1016/j.rvsc.2021.12.004] [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: 05/13/2021] [Revised: 11/02/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022]
Abstract
MicroRNA (miRNAs) are small non-coding RNA molecules involved in a wide range of biological processes through the post-transcriptional regulation of gene expression. Most studies evaluated microRNA expression in human, and despite fewer studies in veterinary medicine, this topic is one of the most exciting areas of modern veterinary medicine. miRNAs showed to be part of the pathogenesis of diseases and reproduction physiology in animals, making them biomarkers candidates. This review provides an overview of the current knowledge regarding miRNAs' role in reproduction and animal diseases, diagnostic and therapy.
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Affiliation(s)
- Evelyn Winter
- Department of Agriculture, Biodiversity and Forests, Federal University of Santa Catarina, Curitibanos, 89520000, SC, Brazil.
| | - Júlia Cisilotto
- Postgraduate Program in Pharmacy, Federal University of Santa Catarina, Florianopolis, 88040-900, SC, Brazil
| | - Adny Henrique Silva
- Postgraduate Program in Pharmacy, Federal University of Santa Catarina, Florianopolis, 88040-900, SC, Brazil
| | - Daiane Rosolen
- Postgraduate Program in Pharmacy, Federal University of Santa Catarina, Florianopolis, 88040-900, SC, Brazil
| | - Ana Paula Fabichak
- Department of Agriculture, Biodiversity and Forests, Federal University of Santa Catarina, Curitibanos, 89520000, SC, Brazil
| | - Michele Patricia Rode
- Postgraduate Program in Pharmacy, Federal University of Santa Catarina, Florianopolis, 88040-900, SC, Brazil
| | - Tânia Beatriz Creczynski-Pasa
- Postgraduate Program in Pharmacy, Federal University of Santa Catarina, Florianopolis, 88040-900, SC, Brazil; Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianopolis, 88040-900, SC, Brazil
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12
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Cumulus cell microRNA expression when LH is added to the ovarian stimulation protocol: a pilot study. Reprod Biomed Online 2021; 43:1070-1077. [PMID: 34674939 DOI: 10.1016/j.rbmo.2021.07.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 07/01/2021] [Accepted: 07/06/2021] [Indexed: 11/20/2022]
Abstract
RESEARCH QUESTION Recombinant FSH administration in ovarian stimulation for IVF is a standard procedure, whereas the role of LH is controversial. MicroRNAs (mRNA) are small endogenous non-coding transcripts that are involved in the regulation of many cellular processes, including foliculogenesis and gonadotrophin function. The aim was to study the possible role of miRNA in ovarian follicular development in groups having different ovarian stimulation protocols. Are there different miRNA expression profiles in cumulus cells of infertile women undergoing IVF? What are the regulated pathways? DESIGN This prospective observational study included 13 patients who fulfilled the following inclusion criteria: younger than 38 years of age; a tubal infertility factor; a male factor; or idiopathic infertility. This is a pilot study in which the patients were aleatory enrolled into two groups: seven in FSH group (recombinant FSH, 225 IU) and six in FSH plus LH group (recombinant FSH, 150 IU + recombinant LH, 75 IU). The granulosa cells obtained from the follicular ovarian retrieval were analysed using polyerase chain reaction. Results were analysed using DIANA Tools, an online bioinformatics tool. RESULTS Among the 84 microRNAs evaluated, 11 were differentially expressed between the groups, all of which were upregulated in the FSH plus LH group, compared with the FSH group. Differentially expressed miRNA profiles are related to oestrogen signalling, oocyte meiosis and pluripotent cells regulation. CONCLUSION miRNA overexpression in the FSH plus LH group is consistent with the independent and fundamental role of LH in folliculogenesis, leading to a distinct molecular response between groups.
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13
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Bogliotti YS, Chung N, Paulson EE, Chitwood J, Halstead M, Kern C, Schultz RM, Ross PJ. Transcript profiling of bovine embryos implicates specific transcription factors in the maternal-to-embryo transition. Biol Reprod 2021; 102:671-679. [PMID: 31711115 DOI: 10.1093/biolre/ioz209] [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] [Received: 03/15/2019] [Revised: 07/29/2019] [Accepted: 11/01/2019] [Indexed: 12/28/2022] Open
Abstract
Full-grown oocytes are transcriptionally quiescent. Following maturation and fertilization, the early stages of embryonic development occur in the absence (or low levels) of transcription that results in a period of development relying on maternally derived products (e.g., mRNAs and proteins). Two critical steps occur during the transition from maternal to embryo control of development: maternal mRNA clearance and embryonic genome activation with an associated dramatic reprogramming of gene expression required for further development. By combining an RNA polymerase II inhibitor with RNA sequencing, we were able not only to distinguish maternally derived from embryonic transcripts in bovine preimplantation embryos but also to establish that embryonic gene activation is required for clearance of maternal mRNAs as well as to identify putative transcription factors that are likely critical for early bovine development.
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Affiliation(s)
| | - Nhi Chung
- Department of Animal Science, University of California, Davis, CA, USA
| | - Erika E Paulson
- Department of Animal Science, University of California, Davis, CA, USA
| | - James Chitwood
- Department of Animal Science, University of California, Davis, CA, USA
| | - Michelle Halstead
- Department of Animal Science, University of California, Davis, CA, USA
| | - Colin Kern
- Department of Animal Science, University of California, Davis, CA, USA
| | - Richard M Schultz
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA, USA, and.,Department of Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - Pablo J Ross
- Department of Animal Science, University of California, Davis, CA, USA
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Souza VDGPD, Souza GTD, Lemos DRD, Guimarães JMDO, Quintão CCR, Munk M, Saraiva NZ, Camargo LSDA. Heat shock during in vitro maturation of bovine oocytes disturbs bta-miR-19b and DROSHA transcripts abundance after in vitro fertilization. Reprod Domest Anim 2021; 56:1128-1136. [PMID: 34021645 DOI: 10.1111/rda.13956] [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: 11/12/2020] [Accepted: 05/18/2021] [Indexed: 11/28/2022]
Abstract
While microRNAs (miRNAs) are a class of non-coding RNAs important for embryo development, the relationship between them and heat stress during oocyte maturation has not yet been established. This study investigated the effect of heat shock during in vitro maturation (IVM) on the abundance of bta-miR-20a, -27b, -103, -21-5p, -19b, -1246 miRNAs and DROSHA and DICER1 mRNAs, previously reported for being involved in oocyte maturation, response to heat stress and miRNA biogenesis. Oocytes were exposed for 12h to heat shock during IVM, fertilized in vitro and the presumptive zygotes cultured for eight days. The relative quantification of miRNAs and mRNAs was performed by real-time PCR in vitro-matured oocytes and 8-cell stage embryos. Progression of meiosis, embryonic development and apoptotic indices was also evaluated. Heat shock compromised (p < .05) oocyte nuclear maturation, cleavage and embryo development, with a higher (p < .05) embryonic apoptotic index than the control group. The abundance of bta-miR-19b increased (p < .05) whereas the abundance of DROSHA transcripts decreased (p < .05) in embryos derived from heat-shocked oocytes. In conclusion, heat shock during IVM influences the abundance of bta-miR-19b and DROSHA in pre-implantation embryos, indicating a persistent effect of heat shock that can be associated with impaired embryo development.
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Affiliation(s)
- Vanessa das Graças Pereira de Souza
- Reproduction and Biotechnology Laboratory, Brazilian Agricultural Research Corporation (Embrapa), Juiz de Fora, Minas Gerais, Brazil.,Biology Department, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Gustavo Torres de Souza
- Reproduction and Biotechnology Laboratory, Brazilian Agricultural Research Corporation (Embrapa), Juiz de Fora, Minas Gerais, Brazil.,Biology Department, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Diana Rangel de Lemos
- Reproduction and Biotechnology Laboratory, Brazilian Agricultural Research Corporation (Embrapa), Juiz de Fora, Minas Gerais, Brazil.,Federal University of Viçosa, UFV, Viçosa, Minas Gerais, Brazil
| | - Judith Maria de Oliveira Guimarães
- Reproduction and Biotechnology Laboratory, Brazilian Agricultural Research Corporation (Embrapa), Juiz de Fora, Minas Gerais, Brazil.,Biology Department, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | | | - Michele Munk
- Biology Department, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Naiara Zoccal Saraiva
- Reproduction and Biotechnology Laboratory, Brazilian Agricultural Research Corporation (Embrapa), Juiz de Fora, Minas Gerais, Brazil
| | - Luiz Sérgio de Almeida Camargo
- Reproduction and Biotechnology Laboratory, Brazilian Agricultural Research Corporation (Embrapa), Juiz de Fora, Minas Gerais, Brazil
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15
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Genome-Wide Association Study Provides Insights into Important Genes for Reproductive Traits in Nelore Cattle. Animals (Basel) 2021; 11:ani11051386. [PMID: 34068162 PMCID: PMC8152989 DOI: 10.3390/ani11051386] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/05/2021] [Accepted: 05/07/2021] [Indexed: 12/03/2022] Open
Abstract
Simple Summary In this study, we investigated the association between single nucleotide polymorphisms (SNPs) and reproductive traits in order to identify candidate genes and biological pathways associated with these traits in Nelore beef cattle. The genome-wide association analysis revealed genomic regions that could explain part of the genetic variance of the studied traits. The results revealed genes with important functions for reproductive traits, such as fertility and precocity. Some genes were associated with more than one trait, being important for reproductive efficiency. The identification of candidate genes that were associated with the studied traits as well as genes enriched in the functional terms and pathways may be useful for exploring the genetic architecture underlying reproductive traits and may be used in Nelore breeding programs. Abstract The identification of genomic regions associated with reproductive traits as well as their biological processes allows a better understanding of the phenotypic variability of these traits. This information could be applied to animal breeding programs to accelerate genetic gain. The aim of this study was to evaluate the association between single nucleotide polymorphisms (SNP) with a scrotal circumference at 365 days of age (SC365) and at 450 days of age (SC450), gestation length (GL) as a calf trait, age at first calving (AFC), accumulated productivity (ACP), heifer early calving until 30 months (HC30), and stayability (STAY) traits, in order to identify candidate genes and biological pathways associated with reproductive traits in Nelore cattle. The data set consisted of pedigree, phenotypes, and genotypes of Nelore cattle from the “Associação Nacional de Criadores e Pesquisadores” (ANCP). The association analyses were performed using the Weighted Single-Step Genome-Wide Association method; the regions, consisting of 10 consecutive SNP, which explained more than 0.5% of additive genetic variance, were considered as a significant association. A total of 3, 6, 7, 5, 10, 25, and 12 windows were associated with SC355, SC450, GL, AFC, ACP, HC30, and STAY, respectively. The results revealed genes with important functions for reproductive traits, such as fertility and precocity. Some genes were associated with more than one trait, among them CAMK1D, TASP1, ACOXL, RAB11FIP5, and SFXN5. Moreover, the genes were enriched in functional terms, like negative regulation of fat cell differentiation, fatty acid alpha-oxidation, and sphingolipids signaling pathway. The identification of the genes associated with the traits, as well as genes enriched in the terms and pathway mentioned above, should contribute to future biological validation studies and may be used as candidate genes in Nelore breeding programs.
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Abstract
Dynamic changes in microRNAs in oocyte and cumulus cells before and after maturation may explain the spatiotemporal post-transcriptional gene regulation within bovine follicular cells during the oocyte maturation process. miR-20a has been previously shown to regulate proliferation and differentiation as well as progesterone levels in cultured bovine granulosa cells. In the present study, we aimed to demonstrate the function of miR-20a during the bovine oocyte maturation process. Maturation of cumulus-oocyte complexes (COCs) was performed at 39°C in an humidified atmosphere with 5% CO2 in air. The expression of miR-20a was investigated in the cumulus cells and oocytes at 22 h post culture. The functional role of miR-20a was examined by modulating the expression of miR-20a in COCs during in vitro maturation (IVM). We found that the miR-20a expression was increased in cumulus cells but decreased in oocytes after IVM. Overexpression of miR-20a increased the oocyte maturation rate. Even though not statistically significant, miR-20a overexpression during IVM increased progesterone levels in the spent medium. This was further supported by the expression of STAR and CYP11A1 genes in cumulus cells. The phenotypes observed due to overexpression of miR-20a were validated by BMP15 supplementation during IVM and subsequent transfection of BMP15-treated COCs using miR-20a mimic or BMPR2 siRNA. We found that miR-20a mimic or BMPR2 siRNA transfection rescued BMP15-reduced oocyte maturation and progesterone levels. We concluded that miR-20a regulates oocyte maturation by increasing cumulus cell progesterone synthesis by simultaneous suppression of BMPR2 expression.
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17
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Gebremedhn S, Ali A, Hossain M, Hoelker M, Salilew-Wondim D, Anthony RV, Tesfaye D. MicroRNA-Mediated Gene Regulatory Mechanisms in Mammalian Female Reproductive Health. Int J Mol Sci 2021; 22:ijms22020938. [PMID: 33477832 PMCID: PMC7832875 DOI: 10.3390/ijms22020938] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/14/2021] [Accepted: 01/16/2021] [Indexed: 12/12/2022] Open
Abstract
Mammalian reproductive health affects the entire reproductive cycle starting with the ovarian function through implantation and fetal growth. Various environmental and physiological factors contribute to disturbed reproductive health status leading to infertility problems in mammalian species. In the last couple of decades a significant number of studies have been conducted to investigate the transcriptome of reproductive tissues and organs in relation to the various reproductive health issues including endometritis, polycystic ovarian syndrome (PCOS), intrauterine growth restriction (IUGR), preeclampsia, and various age-associated reproductive disorders. Among others, the post-transcriptional regulation of genes by small noncoding miRNAs contributes to the observed transcriptome dysregulation associated with reproductive pathophysiological conditions. MicroRNAs as a class of non-coding RNAs are also known to be involved in various pathophysiological conditions either in cellular cytoplasm or they can be released to the extracellular fluid via membrane-bounded extracellular vesicles and proteins. The present review summarizes the cellular and extracellular miRNAs and their association with the etiology of major reproductive pathologies including PCOS, endometritis, IUGR and age-associated disorders in various mammalian species.
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Affiliation(s)
- Samuel Gebremedhn
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, Colorado State University, 3051 Rampart Rd, Fort Collins, CO 80523, USA; (S.G.); (A.A.); (R.V.A.)
| | - Asghar Ali
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, Colorado State University, 3051 Rampart Rd, Fort Collins, CO 80523, USA; (S.G.); (A.A.); (R.V.A.)
| | - Munir Hossain
- Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh;
| | - Michael Hoelker
- Institute of Animal Sciences, Department of Animal Breeding and Husbandry, University of Bonn, 53115 Bonn, Germany; (M.H.); (D.S.-W.)
| | - Dessie Salilew-Wondim
- Institute of Animal Sciences, Department of Animal Breeding and Husbandry, University of Bonn, 53115 Bonn, Germany; (M.H.); (D.S.-W.)
| | - Russell V. Anthony
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, Colorado State University, 3051 Rampart Rd, Fort Collins, CO 80523, USA; (S.G.); (A.A.); (R.V.A.)
| | - Dawit Tesfaye
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, Colorado State University, 3051 Rampart Rd, Fort Collins, CO 80523, USA; (S.G.); (A.A.); (R.V.A.)
- Correspondence:
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18
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Bezerra FTG, Dau AMP, Van Den Hurk R, Silva JRV. Molecular characteristics of oocytes and somatic cells of follicles at different sizes that influence in vitro oocyte maturation and embryo production. Domest Anim Endocrinol 2021; 74:106485. [PMID: 32858464 DOI: 10.1016/j.domaniend.2020.106485] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 11/18/2022]
Abstract
During the last 10 to 15 yr, in vitro research to predict antral follicle growth and oocyte maturation has delivered interesting advances in the knowledge of processes regulating follicle growth and developmental competence of oocytes. This review discusses the contribution of cumulus and mural granulosa cells in the process of oocyte maturation and cumulus expansion in cumulus-oocyte complexes (COCs) from follicles of different sizes and shows that differences in gene expression in oocytes, granulosa, and theca cells of small and large follicles impact the success of in vitro blastocyst development. In addition, the molecular mechanisms by which COC metabolism and antioxidant defense provide oocyte competence are highlighted. Furthermore, new insights and perspectives on molecular and cellular regulation of in vitro oocyte maturation are emphasized.
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Affiliation(s)
- F T G Bezerra
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Graduation School of Biotechnology, Federal University of Ceara, Campus of Sobral, Sobral, Ceará, Brazil
| | - A M P Dau
- Federal Institute of Education, Science and Technology of Rio Grande do Sul, Rolante, Rio Grande do Sul, Brazil
| | - R Van Den Hurk
- Department of Pathobiology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - J R V Silva
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Graduation School of Biotechnology, Federal University of Ceara, Campus of Sobral, Sobral, Ceará, Brazil.
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Li Q, Du X, Liu L, Liu H, Pan Z, Li Q. Upregulation of miR-146b promotes porcine ovarian granulosa cell apoptosis by attenuating CYP19A1. Domest Anim Endocrinol 2021; 74:106509. [PMID: 32653739 DOI: 10.1016/j.domaniend.2020.106509] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 06/04/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022]
Abstract
MicroRNAs (miRNAs) are 21- to 24-nucleotide long small noncoding RNAs, which play an important role in follicular atresia and granulosa cell (GC) apoptosis in the mammalian ovary. Here, we report that miR-146b, a conserved and ovary-enriched miRNA, modulates estradiol (E2) secretion, GC apoptosis, and follicular atresia in pigs. Genome-wide analysis and quantitative real-time PCR revealed that miR-146b was significantly upregulated during follicular atresia, and fluorescence-activated cell sorting showed that miR-146b functioned as a proapoptotic factor to induce GC apoptosis. MicroRNA-mRNA network analysis and luciferase reporter assays showed that CYP19A1, the pivotal enzyme for E2 synthesis signaling, was directly targeted by miR-146b. Furthermore, miR-146b interacted with the 3'untranslated region of CYP19A1 to prevent translation, thereby regulating CYP19A1-mediated E2 secretion and GC apoptosis. However, miR-146b was not regulated by the transcription factor SMAD4 or oxidative stress, both of which are critical regulators of CYP19A1. We, thus, conclude that miR-146b is a novel epigenetic factor regulating GC functions, follicular development, and female reproduction.
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Affiliation(s)
- Q Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - X Du
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - L Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - H Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Z Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Q Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Gad A, Murin M, Nemcova L, Bartkova A, Laurincik J, Procházka R. Inhibition of miR-152 during In Vitro Maturation Enhances the Developmental Potential of Porcine Embryos. Animals (Basel) 2020; 10:ani10122289. [PMID: 33291523 PMCID: PMC7761803 DOI: 10.3390/ani10122289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/27/2020] [Accepted: 12/02/2020] [Indexed: 12/15/2022] Open
Abstract
Simple Summary MiR-152 is a highly conserved miRNA across different species and plays a role in the regulation of cell differentiation, proliferation, and survival. However, the exact role of miR-152 in oocyte and embryo development is not yet known. In this study, we specifically manipulated the expression level of miR-152 in porcine cumulus-oocyte complexes (COCs) and monitored their developmental competence until the blastocyst stage. We mainly found that a suppressed expression of miR-152 during oocyte maturation significantly improved the blastocyst rate. Our results indicate that this negative correlation between miR-152 during oocyte maturation and the blastocyst rate in pigs could be through targeting IGF system components during oocyte development. These results provide more insights into the role of miRNAs during oocyte and embryonic development that could improve the in vitro production system for mammalian embryos. Abstract Oocyte developmental competence is regulated by various mechanisms and molecules including microRNAs (miRNAs). However, the functions of many of these miRNAs in oocyte and embryo development are still unclear. In this study, we managed to manipulate the expression level of miR-152 during oocyte maturation to figure out its potential role in determining the developmental competence of porcine oocytes. The inhibition (Inh) of miR-152 during oocyte maturation does not affect the MII and cleavage rates, however it significantly enhances the blastocyst rate compared to the overexpression (OvExp) and control groups. Pathway analysis identified several signaling pathways (including PI3K/AKT, TGFβ, Hippo, FoxO, and Wnt signaling) that are enriched in the predicted target genes of miR-152. Gene expression analysis revealed that IGF1 was significantly up-regulated in the Inh group and downregulated in the OvExp group of oocytes. Moreover, IGF1R was significantly upregulated in the Inh oocyte group compared to the control one and IGFBP6 was downregulated in the Inh oocyte group compared to the other groups. Blastocysts developed from the OvExp oocytes exhibited an increase in miR-152 expression, dysregulation in some quality-related genes, and the lowest rate of blastocyst formation. In conclusion, our results demonstrate a negative correlation between miR-152 expression level and blastocyst rate in pigs. This correlation could be through targeting IGF system components during oocyte development.
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Affiliation(s)
- Ahmed Gad
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, 27721 Libechov, Czech Republic; (M.M.); (L.N.); (A.B.); (J.L.); (R.P.)
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
- Correspondence:
| | - Matej Murin
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, 27721 Libechov, Czech Republic; (M.M.); (L.N.); (A.B.); (J.L.); (R.P.)
| | - Lucie Nemcova
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, 27721 Libechov, Czech Republic; (M.M.); (L.N.); (A.B.); (J.L.); (R.P.)
| | - Alexandra Bartkova
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, 27721 Libechov, Czech Republic; (M.M.); (L.N.); (A.B.); (J.L.); (R.P.)
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, 94901 Nitra, Slovakia
| | - Jozef Laurincik
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, 27721 Libechov, Czech Republic; (M.M.); (L.N.); (A.B.); (J.L.); (R.P.)
- Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, 94901 Nitra, Slovakia
| | - Radek Procházka
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, 27721 Libechov, Czech Republic; (M.M.); (L.N.); (A.B.); (J.L.); (R.P.)
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Alexandri C, Daniel A, Bruylants G, Demeestere I. The role of microRNAs in ovarian function and the transition toward novel therapeutic strategies in fertility preservation: from bench to future clinical application. Hum Reprod Update 2020; 26:174-196. [PMID: 32074269 DOI: 10.1093/humupd/dmz039] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/02/2019] [Accepted: 10/01/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND New therapeutic approaches in oncology have converted cancer from a certain death sentence to a chronic disease. However, there are still challenges to be overcome regarding the off-target toxicity of many of these treatments. Oncological therapies can lead to future infertility in women. Given this negative impact on long-term quality of life, fertility preservation is highly recommended. While gamete and ovarian tissue cryopreservation are the usual methods offered, new pharmacological-based options aiming to reduce ovarian damage during oncological treatment are very attractive. In this vein, advances in the field of transcriptomics and epigenomics have brought small noncoding RNAs, called microRNAs (miRNAs), into the spotlight in oncology. MicroRNAs also play a key role in follicle development as regulators of follicular growth, atresia and steroidogenesis. They are also involved in DNA damage repair responses and they can themselves be modulated during chemotherapy. For these reasons, miRNAs may be an interesting target to develop new protective therapies during oncological treatment. This review summarizes the physiological role of miRNAs in reproduction. Considering recently developed strategies based on miRNA therapy in oncology, we highlight their potential interest as a target in fertility preservation and propose future strategies to make the transition from bench to clinic. OBJECTIVE AND RATIONALE How can miRNA therapeutic approaches be used to develop new adjuvant protective therapies to reduce the ovarian damage caused by cytotoxic oncological treatments? SEARCH METHODS A systematic search of English language literature using PubMed and Google Scholar databases was performed through to 2019 describing the role of miRNAs in the ovary and their use for diagnosis and targeted therapy in oncology. Personal data illustrate miRNA therapeutic strategies to target the gonads and reduce chemotherapy-induced follicular damage. OUTCOMES This review outlines the importance of miRNAs as gene regulators and emphasizes the fact that insights in oncology can inspire new adjuvant strategies in the field of onco-fertility. Recent improvements in nanotechnology offer the opportunity for drug development using next-generation miRNA-nanocarriers. WIDER IMPLICATIONS Although there are still some barriers regarding the immunogenicity and toxicity of these treatments and there is still room for improvement concerning the specific delivery of miRNAs into the ovaries, we believe that, in the future, miRNAs can be developed as powerful and non-invasive tools for fertility preservation.
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Affiliation(s)
- C Alexandri
- Research Laboratory in Human Reproduction, Faculty of Medicine, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium
| | - A Daniel
- Research Laboratory in Human Reproduction, Faculty of Medicine, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium.,Université de Tours, Faculty of Science and Technology, 37200 Tours, France
| | - G Bruylants
- Engineering of Molecular NanoSystems, Ecole Polytechnique de Bruxelles, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium
| | - I Demeestere
- Research Laboratory in Human Reproduction, Faculty of Medicine, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium.,Fertility Clinic, CUB-Erasme, 1070 Brussels, Belgium
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Wang L, Song F, Yin H, Zhu W, Fu J, Dong Z, Xu P. Comparative microRNAs expression profiles analysis during embryonic development of common carp, Cyprinus carpio. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2020; 37:100754. [PMID: 33186873 DOI: 10.1016/j.cbd.2020.100754] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 09/23/2020] [Accepted: 10/26/2020] [Indexed: 12/22/2022]
Abstract
MicroRNAs (miRNAs) play important roles in biological processes by regulating specific gene expression. Limited miRNAs information is available on embryonic development in common carp (Cyprinus carpio) so far. In this study, six important embryonic development stages of C.carpio were collected to perform a times-series of small RNA-seq experiments from cleavage, blastocyst, gastrulation, organ formation, hatching stage to 1 day post-hatching larva. The expression profiles of miRNAs were identified and differentially expressed miRNAs (DEMs) were screened out based on pairwise comparison. A mean of 12,744,989 raw reads and 9,888,123 clean reads were obtained from each library. A total of 2565 miRNAs were identified. 68 of 204 DEMs were overlapped with stage-specific miRNAs, in which 15 were known miRNAs and seemed to play a key role in embryogenesis. Additionally, time-course expression reveals several intriguing fluctuations during embryogenesis. Numerous signaling pathways were identified in embryonic development, including the phototransduction, hippo signaling pathway, Wnt, melanogenesis, histidine metabolism and fatty acid biosynthesis. The results would provide new insight into the roles of miRNAs in embryonic development, and would help us to advance the understanding of miRNA-mediated mechanisms in embryonic development of fish.
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Affiliation(s)
- Lanmei Wang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, Jiangsu, China; Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Wuxi 214081, Jiangsu, China
| | - Feibiao Song
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, Jiangsu, China
| | - Haoran Yin
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, Jiangsu, China
| | - Wenbin Zhu
- Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Wuxi 214081, Jiangsu, China
| | - Jianjun Fu
- Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Wuxi 214081, Jiangsu, China
| | - Zaijie Dong
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, Jiangsu, China; Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Wuxi 214081, Jiangsu, China.
| | - Pao Xu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, Jiangsu, China; Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences, Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Wuxi 214081, Jiangsu, China.
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Zhou W, Dimitriadis E. Secreted MicroRNA to Predict Embryo Implantation Outcome: From Research to Clinical Diagnostic Application. Front Cell Dev Biol 2020; 8:586510. [PMID: 33072767 PMCID: PMC7537741 DOI: 10.3389/fcell.2020.586510] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 08/24/2020] [Indexed: 12/14/2022] Open
Abstract
Embryo implantation failure is considered a leading cause of infertility and a significant bottleneck for in vitro fertilization (IVF) treatment. Confirmed factors that lead to implantation failure involve unhealthy embryos, unreceptive endometrium, and asynchronous development and communication between the two. The quality of embryos is further dependent on sperm parameters, oocyte quality, and early embryo development after fertilization. The extensive involvement of such different factors contributes to the variability of implantation potential across different menstrual cycles. An ideal approach to predict the implantation outcome should not compromise embryo implantation. The use of clinical material, including follicular fluid, cumulus cells, sperm, seminal exosomes, spent blastocyst culture medium, blood, and uterine fluid, that can be collected relatively non-invasively without compromising embryo implantation in a transfer cycle opens new perspectives for the diagnosis of embryo implantation potential. Compositional comparison of these samples between fertile women and women or couples with implantation failure has identified both quantitative and qualitative differences in the expression of microRNAs (miRs) that hold diagnostic potential for implantation failure. Here, we review current findings of secreted miRs that have been identified to potentially be useful in predicting implantation outcome using material that can be collected relatively non-invasively. Developing non-invasive biomarkers of implantation potential would have a major impact on implantation failure and infertility.
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Affiliation(s)
- Wei Zhou
- Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia.,Gynaecology Research Centre, The Royal Women's Hospital, Parkville, VIC, Australia
| | - Evdokia Dimitriadis
- Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia.,Gynaecology Research Centre, The Royal Women's Hospital, Parkville, VIC, Australia
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In vitro maturation in the presence of Leukemia Inhibitory Factor modulates gene and miRNA expression in bovine oocytes and embryos. Sci Rep 2020; 10:17777. [PMID: 33082423 PMCID: PMC7575586 DOI: 10.1038/s41598-020-74961-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 09/23/2020] [Indexed: 02/06/2023] Open
Abstract
Members of the interleukin-6 (IL-6) family of cytokines are important for reproductive function that are mediated through changes in gene and miRNA expression. Herein, we characterized the expression of miR-21, miR-155, miR-34c and miR-146a in bovine oocytes and cumulus cells during in vitro maturation (IVM) with leukemia inhibitory factor (LIF), IL-6 and IL-11 or unsupplemented controls. LIF-exposed COCs showed higher expression of miR-21 and miR-155 in oocytes, whereas miR-146a expression was increased in oocytes matured with IL-6 and IL-11. In cumulus cells, miR-155 expression was elevated by all treatments while only LIF increased miR-21 expression. Based on these results, we next examined how LIF exposure during IVM affected oocyte competence, through IVF and the expression of specific genes in GV- and MII-oocytes, in 2- and 8-cell embryos, and in Day 8-blastocysts. LIF supplementation did not affect cleavage rate, blastocyst yield or several other developmental parameters, but did increase hatching rate. LIF suppressed DPPA3, ZAR1 and NPM2 expression in 2 cell- and/or 8-cell embryos. LIF increased the expression of KAT2A and HSPA1A in MII-oocytes, and that of HDAC1, KAT2A and HSP90AA1 and the BAX:BCL2L1 ratio in 2-cell embryos. In contrast, HDAC1, KAT2A and HSP90AA1 expression and BAX:BCL2L1 ratio was lower in 8-cell embryos derived from LIF oocytes. IVM with LIF also increased the expression of DNMT3A, HSPA1A and HSP90AA1 in blastocysts. In conclusion, supplementation with LIF during IVM was consistently associated with changes in the relative abundance of transcripts in mature bovine oocytes and in specific embryo developmental stages.
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Dehghan Z, Mohammadi-Yeganeh S, Salehi M. MiRNA-155 regulates cumulus cells function, oocyte maturation, and blastocyst formation. Biol Reprod 2020; 103:548-559. [DOI: 10.1093/biolre/ioaa098] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/05/2020] [Accepted: 06/02/2020] [Indexed: 12/24/2022] Open
Abstract
Abstract
Numerous oocytes are retrieved during in vitro fertilization from patients with polycystic ovary syndrome (PCOS). The poor quality of these oocytes leads to lower fertilization and decreases in cleavage and implantation. MiR-155 is one of the microRNA (miRNA) that is increased in serum and granulosa cells of PCOS patients. In this study, we investigate the effects of miR-155 expression and its target genes on oocyte maturation and embryo development. We used the calcium phosphate protocol to transfect vectors that contained miR-155 or miR-off 155 and alone eGFP into cumulus oophorus complex (COCs) of B6D2F1 female mice for in vitro maturation. Cumulus expansion, nuclear, and cytoplasmic maturation, as well as cleavage rates were determined in groups transfected and compared with the control groups. Quantitative real-time polymerase chain reaction was performed to analyze expression levels of miR-155 and the target genes in the cumulus cells, oocytes, and blastocysts. MiR-155 overexpression in COCs suppressed cumulus expansion, oocyte maturation, and inhibition of endogenous miR-155 by miR-off 155 improved cumulus expansion and oocyte maturation by downregulation and expression increase of the Smad2 and Bcl2 genes. On the other hand, overexpression and downregulation of miR-155 in the COCs led to increase and decrease in cleavage rates by changes in expressions of the Mecp2, Jarid2, and Notch1 genes, respectively (P < 0.05). These results suggested that miR-155 overexpression in granulosa cells of PCOS patients can negatively affect nuclear and cytoplasmic maturation, but this miRNA expression has a positive impact on embryo development.
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Affiliation(s)
- Zeinab Dehghan
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Samira Mohammadi-Yeganeh
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Salehi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Hale BJ, Li Y, Adur MK, Ross JW. Inhibition of germinal vesicle breakdown using IBMX increases microRNA-21 in the porcine oocyte. Reprod Biol Endocrinol 2020; 18:39. [PMID: 32393269 PMCID: PMC7212575 DOI: 10.1186/s12958-020-00603-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 04/27/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Germinal vesicle breakdown (GVBD) occurs during oocyte meiotic maturation, a period when transcriptional processes are virtually inactive. Thus, the maturing oocyte is reliant on processes such as post-transcriptional gene regulation (PTGR) to regulate the mRNA and protein repertoire. MicroRNA (miRNA) are a class of functional small RNA that target mRNA to affect their abundance and translational efficiency. Of particular importance is miRNA-21 (MIR21) due to its role in regulating programmed cell death 4 (PDCD4). The objective of this study was to characterize the abundance and regulation of MIR21 in relation to GVBD. METHODS Oocytes were collected from aspirated porcine tertiary follicles. Relative abundance of mature MIR21 was quantified at 0, 8, 16, 24, 32, and 42 h of in vitro (IVM) with or without treatment with 3-isobutyl-1-methylxanthine (IBMX). RESULTS IBMX increased abundance of MIR21 at 24 h approximately 30-fold compared to control oocytes (P < 0.05), and the induced increase in MIR21 abundance at 24 h was concomitant with premature depletion of PDCD4 protein abundance. To characterize the effect of artificially increasing MIR21 on oocyte competence without inhibiting GVBD, a MIR21 mimic, scrambled microRNA negative control, or nuclease free water was micro-injected into denuded oocytes at 21 h of IVM. The maturation rate of oocytes injected with synthetic MIR21 (63.0 ± 7.5%) was higher than oocytes injected with negative controls (P < 0.05). CONCLUSIONS Inhibition of nuclear meiotic maturation via IBMX significantly increased MIR21 and decreased its target, PDCD4. Injection of a MIR21 mimic increased oocyte maturation rate. Our results indicate MIR21 is active and important during meiotic maturation of the oocyte.
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Affiliation(s)
- Benjamin J Hale
- Department of Animal Science, 2356 Kildee Hall, Iowa State University, Ames, IA, 50011, USA
| | - Yunsheng Li
- Department of Animal Science, 2356 Kildee Hall, Iowa State University, Ames, IA, 50011, USA
| | - Malavika K Adur
- Department of Animal Science, 2356 Kildee Hall, Iowa State University, Ames, IA, 50011, USA
| | - Jason W Ross
- Department of Animal Science, 2356 Kildee Hall, Iowa State University, Ames, IA, 50011, USA.
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Cho SH, Kim YR, Kim JH, An HJ, Kim JO, Ko JJ, Lee WS, Kim NK. The association of miR-25T>C, miR-32C>A, miR-125C>T, and miR-222G>T polymorphisms with a risk of primary ovarian insufficiency in Korean women. Menopause 2020; 26:409-416. [PMID: 30422934 DOI: 10.1097/gme.0000000000001258] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The purpose of this study was to investigate the association of microRNA polymorphisms (miR-25T>C, miR-32C>A, miR-125C>T, and miR-222G>T) with primary ovarian insufficiency (POI) in Korean women. METHODS We conducted a case-control study of Korean women: 142 participants with POI and 266 controls with at least 1 live birth and no history of pregnancy loss. RESULTS The haplotype-based multifactor dimensionality reduction analysis revealed that the T-C-T-G (miR-25/-32/-125/-222), T-A-C-G (miR-25/-32/-125/-222), C-T-G (miR-32/-125/-222), A-C-G (miR-32/-125/-222), T-G (miR-122/-222), C-T (miR-32/-125), and C-C (miR-25/-32) inferred haplotypes were significantly less frequent in POI (P < 0.05), which suggested potential protective effects. Participants with POI had significantly increased luteinizing hormone levels (P < 0.05), but hormonal levels, including luteinizing hormone, were not significantly different between POI women and control women with miR-32/-125/-222. CONCLUSIONS After considering multiple comparisons, we concluded that miR-25T>C, miR-32C>A, miR-125C>T, and miR-222G>T had no relation with POI.
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Affiliation(s)
- Sung Hwan Cho
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, Korea
| | - Young Ran Kim
- Department of Obstetrics and Gynecology, School of Medicine, CHA University, Seongnam, Korea
| | - Ji Hyang Kim
- Department of Obstetrics and Gynecology, School of Medicine, CHA University, Seongnam, Korea
| | - Hui Jeong An
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, Korea
| | - Jung Oh Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, Korea
| | - Jung Jae Ko
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, Korea
| | - Woo Sik Lee
- Fertility Center of CHA Gangnam Medical Center, CHA University, Seoul, Korea
| | - Nam Keun Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, Korea
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Implications of miRNA expression pattern in bovine oocytes and follicular fluids for developmental competence. Theriogenology 2020; 145:77-85. [PMID: 32004821 DOI: 10.1016/j.theriogenology.2020.01.027] [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: 07/02/2019] [Revised: 12/23/2019] [Accepted: 01/13/2020] [Indexed: 02/07/2023]
Abstract
Developmental competence determines the oocyte capacity to support initial embryo growth, but the molecular mechanisms underlying this phenomenon are still ill-defined. Changes in microRNA (miRNA) expression pattern have been described during follicular growth in several species. Therefore, aim of this study was to investigate whether miRNA expression pattern in cow oocyte and follicular fluid (FF) is associated with the acquisition of developmental competence. Samples were collected from ovaries with more than, or fewer than, 10 mid-antral follicles (H- and L-ovaries) because previous studies demonstrated that this parameter is a reliable predictor of oocyte competence. After miRNA deep sequencing and bioinformatic data analysis, we identified 58 miRNAs in FF and 6 in the oocyte that were differentially expressed between H- and L-ovaries. Overall, our results indicate that miRNA levels both in FF and in the ooplasm must remain within specific thresholds and that changes in either direction compromising oocyte competence. Some of the miRNAs found in FF (miR-769, miR-1343, miR-450a, miR-204, miR-1271 and miR-451) where already known to regulate follicle growth and their expression pattern indicate that they are also involved in the acquisition of developmental competence. Some miRNAs were differentially expressed in both compartments but with opposite patterns, suggesting that miRNAs do not flow freely between FF and oocyte. Gene Ontology analysis showed that the predicted gene targets of most differentially expressed miRNAs are part of a few signalling pathways. Regulation of maternal mRNA storage and mitochondrial activity seem to be the processes more functionally relevant in determining oocyte quality. In conclusion, our data identified a few miRNAs in the follicular fluid and in the ooplasm that modulate the oocyte developmental competence. This provides new insights that could help with the management of cattle reproductive efficiency.
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Salilew-Wondim D, Gebremedhn S, Hoelker M, Tholen E, Hailay T, Tesfaye D. The Role of MicroRNAs in Mammalian Fertility: From Gametogenesis to Embryo Implantation. Int J Mol Sci 2020; 21:ijms21020585. [PMID: 31963271 PMCID: PMC7014195 DOI: 10.3390/ijms21020585] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/09/2020] [Accepted: 01/13/2020] [Indexed: 12/11/2022] Open
Abstract
The genetic codes inscribed during two key developmental processes, namely gametogenesis and embryogenesis, are believed to determine subsequent development and survival of adult life. Once the embryo is formed, its further development mainly depends on its intrinsic characteristics, maternal environment (the endometrial receptivity), and the embryo–maternal interactions established during each phase of development. These developmental processes are under strict genetic regulation that could be manifested temporally and spatially depending on the physiological and developmental status of the cell. MicroRNAs (miRNAs), one of the small non-coding classes of RNAs, approximately 19–22 nucleotides in length, are one of the candidates for post-transcriptional developmental regulators. These tiny non-coding RNAs are expressed in ovarian tissue, granulosa cells, testis, oocytes, follicular fluid, and embryos and are implicated in diverse biological processes such as cell-to-cell communication. Moreover, accumulated evidences have also highlighted that miRNAs can be released into the extracellular environment through different mechanisms facilitating intercellular communication. Therefore, understanding miRNAs mediated regulatory mechanisms during gametogenesis and embryogenesis provides further insights about the molecular mechanisms underlying oocyte/sperm formation, early embryo development, and implantation. Thus, this review highlights the role of miRNAs in mammalian gametogenesis and embryogenesis and summarizes recent findings about miRNA-mediated post-transcriptional regulatory mechanisms occurring during early mammalian development.
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Affiliation(s)
- Dessie Salilew-Wondim
- Institute of Animal Sciences, Animal Breeding and Husbandry, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany; (D.S.-W.); (M.H.); (E.T.); (T.H.)
| | - Samuel Gebremedhn
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, Colorado State University, 1351 Rampart Rd, Fort Collins, CO 80523, USA;
| | - Michael Hoelker
- Institute of Animal Sciences, Animal Breeding and Husbandry, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany; (D.S.-W.); (M.H.); (E.T.); (T.H.)
- Teaching and Research Station Frankenforst, Faculty of Agriculture, University of Bonn, 53639 Königswinter, Germany
| | - Ernst Tholen
- Institute of Animal Sciences, Animal Breeding and Husbandry, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany; (D.S.-W.); (M.H.); (E.T.); (T.H.)
| | - Tsige Hailay
- Institute of Animal Sciences, Animal Breeding and Husbandry, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany; (D.S.-W.); (M.H.); (E.T.); (T.H.)
| | - Dawit Tesfaye
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, Colorado State University, 1351 Rampart Rd, Fort Collins, CO 80523, USA;
- Correspondence: ; Tel.: +1-530-564-2806
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Hulsegge I, Calus M, Hoving-Bolink R, Lopes M, Megens HJ, Oldenbroek K. Impact of merging commercial breeding lines on the genetic diversity of Landrace pigs. Genet Sel Evol 2019; 51:60. [PMID: 31664893 PMCID: PMC6819590 DOI: 10.1186/s12711-019-0502-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 10/16/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The pig breeding industry has undergone a large number of mergers in the past decades. Various commercial lines were merged or discontinued, which is expected to reduce the genetic diversity of the pig species. The objective of the current study was to investigate the genetic diversity of different former Dutch Landrace breeding lines and quantify their relationship with the current Dutch Landrace breed that originated from these lines. RESULTS Principal component analysis clearly divided the former Landrace lines into two main clusters, which are represented by Norwegian/Finnish Landrace lines and Dutch Landrace lines. Structure analysis revealed that each of the lines that are present in the Dutch Gene bank has a unique genetic identity. The current Dutch Landrace breed shows a high level of admixture and is closely related to the six former lines. The Dumeco N-line, which is conserved in the Dutch Gene bank, is poorly represented in the current Dutch Landrace. All seven lines (the six former and the current line) contribute almost equally to the genetic diversity of the Dutch Landrace breed. As expected, the current Dutch Landrace breed comprises only a small proportion of unique genetic diversity that was not present in the other lines. The genetic diversity level, as measured by Eding's core set method, was equal to 0.89 for the current Dutch Landrace breed, whereas total genetic diversity across the seven lines, measured by the same method, was equal to 0.99. CONCLUSIONS The current Dutch Landrace breed shows a high level of admixture and is closely related to the six former Dutch Landrace lines. Merging of commercial Landrace lines has reduced the genetic diversity of the Landrace population in the Netherlands, although a large proportion of the original variation is maintained. Thus, our recommendation is to conserve breeding lines in a gene bank before they are merged.
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Affiliation(s)
- Ina Hulsegge
- Animal Breeding and Genomics, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
- Centre for Genetic Resources, the Netherlands, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
| | - Mario Calus
- Animal Breeding and Genomics, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
| | - Rita Hoving-Bolink
- Animal Breeding and Genomics, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
- Centre for Genetic Resources, the Netherlands, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
| | - Marcos Lopes
- Topigs Norsvin Research Center, P.O. Box 43, 6640 AA Beuningen, The Netherlands
- Topigs Norsvin, Curitiba, PR 80420-210 Brazil
| | - Hendrik-Jan Megens
- Animal Breeding and Genomics, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
| | - Kor Oldenbroek
- Centre for Genetic Resources, the Netherlands, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands
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Lin X, Pavani KC, Smits K, Deforce D, Heindryckx B, Van Soom A, Peelman L. Bta-miR-10b Secreted by Bovine Embryos Negatively Impacts Preimplantation Embryo Quality. Front Genet 2019; 10:757. [PMID: 31507632 PMCID: PMC6713719 DOI: 10.3389/fgene.2019.00757] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/17/2019] [Indexed: 01/02/2023] Open
Abstract
In a previous study, we found miR-10b to be more abundant in a conditioned culture medium of degenerate embryos compared to that of blastocysts. Here, we show that miR-10b mimics added to the culture medium can be taken up by embryos. This uptake results in an increase in embryonic cell apoptosis and aberrant expression of DNA methyltransferases (DNMTs). Using several algorithms, Homeobox A1 (HOXA1) was identified as one of the potential miR-10b target genes and dual-luciferase assay confirmed HOXA1 as a direct target of miR-10b. Microinjection of si-HOXA1 into embryos also resulted in an increase in embryonic cell apoptosis and downregulation of DNMTs. Cell progression analysis using Madin–Darby bovine kidney cells (MDBKs) showed that miR-10b overexpression and HOXA1 knockdown results in suppressed cell cycle progression and decreased cell viability. Overall, this work demonstrates that miR-10b negatively influences embryo quality and might do this through targeting HOXA1 and/or influencing DNA methylation.
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Affiliation(s)
- Xiaoyuan Lin
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
| | | | - Katrien Smits
- Reproduction, Obstetrics and Herd Health, Ghent University, Ghent, Belgium
| | - Dieter Deforce
- Laboratory for Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Björn Heindryckx
- Department for Reproductive Medicine, Ghent University Hospital, Ghent, Belgium
| | - Ann Van Soom
- Reproduction, Obstetrics and Herd Health, Ghent University, Ghent, Belgium
| | - Luc Peelman
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Ghent, Belgium
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Cell-Free, Embryo-Specific sncRNA as a Molecular Biological Bridge between Patient Fertility and IVF Efficiency. Int J Mol Sci 2019; 20:ijms20122912. [PMID: 31207900 PMCID: PMC6627040 DOI: 10.3390/ijms20122912] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/07/2019] [Accepted: 06/12/2019] [Indexed: 01/11/2023] Open
Abstract
Small noncoding RNAs (sncRNAs) are key regulators of the majority of human reproduction events. Understanding their function in the context of gametogenesis and embryogenesis will allow insight into the possible causes of in vitro fertilization (IVF) implantation failure. The aim of this study was to analyze the sncRNA expression profile of the spent culture media on day 4 after fertilization and to reveal a relationship with the morphofunctional characteristics of gametes and resultant embryos, in particular, with the embryo development and implantation potential. Thereto, cell-free, embryo-specific sncRNAs were identified by next generation sequencing (NGS) and quantified by reverse transcription coupled with polymerase chain reaction (RT-PCR) in real-time. Significant differences in the expression level of let-7b-5p, let-7i-5p, piR020401, piR16735, piR19675, piR20326, and piR17716 were revealed between embryo groups of various morphological gradings. Statistically significant correlations were found between the expression profiles of piR16735 and piR020401 with the oocyte-cumulus complex number, let-7b-5p and piR020401 with metaphase II oocyte and two pronuclei embryo numbers, let-7i-5p and piR20497 with the spermatozoid count per milliliter of ejaculate, piR19675 with the percentage of linearly motile spermatozoids, let-7b-5p with the embryo development grade, and let-7i-5p with embryo implantation. According to partial least squares discriminant analysis (PLS-DA), the expression levels of let-7i-5p (Variable Importance in Projection score (VIP) = 1.6262), piR020401 (VIP = 1.45281), and piR20497 (VIP = 1.42765) have the strongest influences on the implantation outcome.
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Lagah SV, Sood TJ, Palta P, Mukesh M, Chauhan MS, Manik RS, Singh MK, Singla SK. Selection of Reference miRNAs for Relative Quantification in Buffalo ( Bubalus bubalis) Blastocysts Produced by Hand-Made Cloning and In Vitro Fertilization. Cell Reprogram 2019; 21:200-209. [PMID: 31199674 DOI: 10.1089/cell.2019.0022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Very low birth rate and a high incidence of abnormalities in offspring born from cloned embryos, which have limited the application of cloning technology on a wide scale, are believed to be because of incomplete or aberrant nuclear reprogramming. MicroRNAs (miRNAs) are involved in regulating a wide range of biological processes including reprogramming and embryonic development. Selection of suitable reference miRNAs is critical for normalization of data for accurate relative quantification of miRNAs by quantitative real-time polymerase chain reaction (qRT-PCR), which is currently the most widely used technique for quantifying miRNAs. This study was aimed at identification of reference miRNAs suitable for normalization of qRT-PCR data from blastocyst-stage buffalo embryos produced by handmade cloning and in vitro fertilization (IVF). RNA isolated from cloned and IVF blastocysts was subjected to next-generation sequencing based on which, 12 highly and most consistently expressed miRNAs, which included miR-92a, miR-423, miR-151, Let-7a, miR-103a, miR-93, miR-16b, miR-25, miR-30e, miR-101, miR-127, and miR-197, were selected as candidates for identification of suitable reference miRNAs using three statistical algorithms namely geNorm, NormFinder, and BestKeeper. Based on consensus of the three algorithms, the combination of miRNAs found to be suitable as reference miRNAs were miR-127 and miR-103 for IVF blastocysts; miR-92a and miR-103 for cloned blastocysts, and miR-103, miR-423, and miR-93 across both IVF and cloned blastocysts. The data of this study can be very useful in miRNA expression analysis of blastocyst-stage cloned and IVF embryos.
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Affiliation(s)
- Swati Viviyan Lagah
- 1Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, India.,2Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Tanushri Jerath Sood
- 1Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Prabhat Palta
- 1Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Manishi Mukesh
- 3ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
| | - Manmohan Singh Chauhan
- 1Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Radhey Shyam Manik
- 1Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Manoj Kumar Singh
- 1Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Suresh Kumar Singla
- 1Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, India
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Zhang P, Wang J, Lang H, Wang W, Liu X, Liu H, Tan C, Li X, Zhao Y, Wu X. MicroRNA-205 affects mouse granulosa cell apoptosis and estradiol synthesis by targeting CREB1. J Cell Biochem 2019; 120:8466-8474. [PMID: 30556190 DOI: 10.1002/jcb.28133] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 10/31/2018] [Indexed: 01/24/2023]
Abstract
MicroRNA-205 (miR-205) is involved in various physiological and pathological processes, but its biological function in follicular atresia remains unclear. In this study, we investigated miR-205 expression in mouse granulosa cells (mGCs) and analyzed its functions in primary mGCs by performing a series of in vitro experiments. Quantitative real-time polymerase chain reaction showed that miR-205 expression was significantly higher in early atretic follicles and progressively atretic follicles than in healthy follicles. miR-205 overexpression in mGCs significantly promoted apoptosis and caspase-3/9 activities, as well as inhibited estrogen (E2) release and cytochrome P450 family 19 subfamily A polypeptide 1 (CYP19A1, a key gene in E2 production) expression. Bioinformatics and luciferase reporter assays revealed that the gene encoding cyclic AMP response element (CRE)-binding protein 1 (CREB1) was a direct target of miR-205 in mGCs. CREB1 upregulation partially rescued the effects of miR-205 on apoptosis, caspase-3/9 activities, E2 production, and CYP19A1 expression on mGCs. These results indicate that miR-205 might play an important role in ovarian follicular development and provide new insights into follicular atresia.
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Affiliation(s)
- Pengju Zhang
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Jun Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, China
| | - Hongyan Lang
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Weixia Wang
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Xiaohui Liu
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Haiyan Liu
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Chengcheng Tan
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Xintao Li
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Yumin Zhao
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Xinghong Wu
- Institute of Animal Sciences, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
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Lin X, Beckers E, Mc Cafferty S, Gansemans Y, Joanna Szymańska K, Chaitanya Pavani K, Catani JP, Van Nieuwerburgh F, Deforce D, De Sutter P, Van Soom A, Peelman L. Bovine Embryo-Secreted microRNA-30c Is a Potential Non-invasive Biomarker for Hampered Preimplantation Developmental Competence. Front Genet 2019; 10:315. [PMID: 31024625 PMCID: PMC6459987 DOI: 10.3389/fgene.2019.00315] [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: 02/05/2019] [Accepted: 03/21/2019] [Indexed: 01/01/2023] Open
Abstract
Recently, secreted microRNAs (miRNAs) have received a lot of attention since they may act as autocrine factors. However, how secreted miRNAs influence embryonic development is still poorly understood. We identified 294 miRNAs, 114 known, and 180 novel, in the conditioned medium of individually cultured bovine embryos. Of these miRNAs, miR-30c and miR-10b were much more abundant in conditioned medium of slow cleaving embryos compared to intermediate cleaving ones. MiR-10b, miR-novel-44, and miR-novel-45 were higher expressed in the conditioned medium of degenerate embryos compared to blastocysts, while the reverse was observed for miR-novel-113 and miR-novel-139. Supplementation of miR-30c mimics into the culture medium confirmed the uptake of miR-30c mimics by embryos and resulted in increased cell apoptosis, as also shown after delivery of miR-30c mimics in Madin-Darby bovine kidney cells (MDBKs). We also demonstrated that miR-30c directly targets Cyclin-dependent kinase 12 (CDK12) through its 3′ untranslated region (3′-UTR) and inhibits its expression. Overexpression and downregulation of CDK12 revealed the opposite results of the delivery of miRNA-30c mimics and inhibitor. The significant down-regulation of several tested DNA damage response (DDR) genes, after increasing miR-30c or reducing CDK12 expression, suggests a possible role for miR-30c in regulating embryo development through DDR pathways.
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Affiliation(s)
- Xiaoyuan Lin
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Evy Beckers
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Séan Mc Cafferty
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Yannick Gansemans
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | | | | | - João Portela Catani
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Filip Van Nieuwerburgh
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Dieter Deforce
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Petra De Sutter
- Department of Uro-Gynaecology, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Ann Van Soom
- Reproduction, Obstetrics and Herd Health, Ghent University, Merelbeke, Belgium
| | - Luc Peelman
- Department of Nutrition, Genetics and Ethology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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Treatment of buffalo (Bubalus bubalis) SCNT embryos with microRNA-21 mimic improves their quality and alters gene expression but does not affect their developmental competence. Theriogenology 2019; 126:8-16. [DOI: 10.1016/j.theriogenology.2018.11.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/20/2018] [Accepted: 11/25/2018] [Indexed: 01/15/2023]
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Gad A, Nemcova L, Murin M, Kanka J, Laurincik J, Benc M, Pendovski L, Prochazka R. microRNA expression profile in porcine oocytes with different developmental competence derived from large or small follicles. Mol Reprod Dev 2019; 86:426-439. [PMID: 30756429 DOI: 10.1002/mrd.23121] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/10/2019] [Accepted: 01/29/2019] [Indexed: 12/16/2022]
Abstract
Oocyte developmental competence is acquired during folliculogenesis and regulated by complex molecular mechanisms. Several molecules are involved in these mechanisms, including microRNAs (miRNAs) that are essential for oocyte-specific processes throughout the development. The objective of this study was to identify the expression profile of miRNAs in porcine oocytes derived from follicles of different sizes using RNA deep sequencing. Oocytes were aspirated from large (LO; 3-6 mm) or small (SO; 1.5-1.9 mm) follicles and tested for developmental competence and chromatin configurations. Small RNA libraries were constructed from both groups and then sequenced in an Illumina NextSeq. 500. Oocytes from the LO group exhibited higher developmental competence and different chromatin configuration compared with oocytes from the SO group. In total, 167 and 162 known miRNAs were detected in the LO and SO groups, respectively. MiR-205, miR-16, miR-148a-3p, and miR-125b were among the top 10 highly expressed miRNAs in both groups. Eight miRNAs were differentially expressed (DE) between both groups. Target gene prediction and pathway analysis revealed 46 pathways that were enriched with miRNA-target genes. The oocyte meiosis pathway and signaling pathways including FoxO, PI3K-Akt, and cAMP were predictably targeted by DE miRNAs. These results give more insights into the potential role of miRNAs in regulating the oocyte development.
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Affiliation(s)
- Ahmed Gad
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Liběchov, Czech Republic.,Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Lucie Nemcova
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Liběchov, Czech Republic
| | - Matej Murin
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Liběchov, Czech Republic
| | - Jiri Kanka
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Liběchov, Czech Republic
| | - Jozef Laurincik
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Liběchov, Czech Republic.,Department of Zoology and Anthropology, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
| | - Michal Benc
- Department of Zoology and Anthropology, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic.,Biology of Reproduction Department, Institute of Animal Science, Prague, Uhrineves, Czech Republic
| | - Lazo Pendovski
- Department of Functional Morphology, Ss. Cyril and Methodius University in Skopje, Faculty of Veterinary Medicine, Republic of Macedonia
| | - Radek Prochazka
- Laboratory of Developmental Biology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Liběchov, Czech Republic
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Melo TP, Fortes MRS, Bresolin T, Mota LFM, Albuquerque LG, Carvalheiro R. Multitrait meta-analysis identified genomic regions associated with sexual precocity in tropical beef cattle. J Anim Sci 2018; 96:4087-4099. [PMID: 30053002 DOI: 10.1093/jas/sky289] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/20/2018] [Indexed: 12/31/2022] Open
Abstract
Multitrait meta-analyses are a strategy to produce more accurate genome-wide association studies, especially for complex phenotypes. We carried out a meta-analysis study for traits related to sexual precocity in tropical beef cattle (Nellore and Brahman) aiming to identify important genomic regions affecting these traits. The traits included in the analyses were age at first calving (AFC), early pregnancy (EP), age at first corpus luteum (AGECL), first postpartum anoestrus interval (PPAI), and scrotal circumference (SC). The traits AFC, EP, and SCN were measured in Nellore cattle, while AGECL, PPAI, and SCB were measured in Brahman cattle. Meta-analysis resulted in 108 significant single-nucleotide polymorphisms (SNPs), at an empirical threshold P-value of 1.39 × 10-5 (false discovery rate [FDR] < 0.05). Within 0.5 Mb of the significant SNP, candidate genes were annotated and analyzed for functional enrichment. Most of the closest genes to the SNP with higher significance in each chromosome have been associated with important roles in reproductive function. They are TSC22D2, KLF7, ARHGAP29, 7SK, MAP3K5, TLE3, WDR5, TAF3, TMEM68, PPP1R15B, NR2F2, GALR1, SUFU, and KCNU1. We did not observe any significant SNP in BTA5, BTA12, BTA17, BTA18, BTA19, BTA20, BTA22, BTA23, BTA25, and BTA28. Although the majority of significant SNPs are in BTA14, it was identified significant associations in multiple chromosomes (19 out of 29 autosomes), which is consistent with the postulation that reproductive traits are complex polygenic phenotypes. Five proposed association regions harbor the majority of the significant SNP (76%) and were distributed over four chromosomes (P < 1.39 × 10-5, FDR < 0.05): BTA2 (5.55%) from 95 to 96 Mb, BTA4 (5.55%) from 94.1 to 94.8 Mb, BTA14 (59.26%) from 24 to 25 Mb and 29 to 30 Mb, and BTA21 (5.55%) from 6.7 Mb to 11.4 Mb. These regions harbored key genes related to reproductive function. Moreover, these genes were enriched for functional groups associated with immune response, maternal-fetal tolerance, pregnancy maintenance, embryo development, fertility, and response to stress. Further studies including other breeds and precocity traits could confirm the importance of these regions and identify new candidate regions for sexual precocity in beef cattle.
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Affiliation(s)
- Thaise P Melo
- Department of Animal Science, School of Agricultural and Veterinarian Sciences, FCAV/ UNESP - Sao Paulo State University, Jaboticabal, Sao Paulo, Brazil
| | - Marina R S Fortes
- The University of Queensland, School of Chemistry and Molecular Biosciences, St Lucia, Queensland, Australia.,The University of Queensland, Queensland Alliance for Agriculture and Food Innovation, St Lucia, Queensland, Australia
| | - Tiago Bresolin
- Department of Animal Science, School of Agricultural and Veterinarian Sciences, FCAV/ UNESP - Sao Paulo State University, Jaboticabal, Sao Paulo, Brazil
| | - Lucio F M Mota
- Department of Animal Science, School of Agricultural and Veterinarian Sciences, FCAV/ UNESP - Sao Paulo State University, Jaboticabal, Sao Paulo, Brazil
| | - Lucia G Albuquerque
- Department of Animal Science, School of Agricultural and Veterinarian Sciences, FCAV/ UNESP - Sao Paulo State University, Jaboticabal, Sao Paulo, Brazil.,National Council for Scientific and Technological Development (CNPq), Brasília, Distrito Federal, Brazil
| | - Roberto Carvalheiro
- Department of Animal Science, School of Agricultural and Veterinarian Sciences, FCAV/ UNESP - Sao Paulo State University, Jaboticabal, Sao Paulo, Brazil.,National Council for Scientific and Technological Development (CNPq), Brasília, Distrito Federal, Brazil
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Berg DK, Pfeffer PL. MicroRNA expression in bovine preimplantation embryos. Reprod Fertil Dev 2018; 30:546-554. [PMID: 28847362 DOI: 10.1071/rd17101] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 08/02/2017] [Indexed: 01/05/2023] Open
Abstract
We profiled 98 mature microRNAs (miRNAs) using a stem-loop reverse transcription polymerase chain reaction assay array based on human miRNAs. We demonstrated that one, but not two, base-pair changes in the miRNA recognition sequence at the 3' end only marginally affected copy number estimates. Absolute levels of miRNAs were measured in matured cattle oocytes, eight-cell embryos and normal and parthenogenetic blastocysts and Day-14 trophoblast. Most miRNA concentrations were below the expected functional threshold required for effective repression of moderately to highly abundant target RNA. In oocytes and peri-embryonic genome activation embryos, miRNA 320, a member of the Dgcr8/Drosha-independent class of miRNAs, was expressed at greater than 1000 copies per embryo. miRNAs were more abundant at the eight-cell than the oocyte stage. miRNA concentrations per cell increased from the eight-cell to the blastocyst stage. Both the number of miRNA species and their expression levels were reduced in trophoblast tissue at Day 14. The parthenogenetic samples were more related in their miRNA expression profiles to each other than to their wild-type (in vitro-produced cultured) counterparts. miRNAs 299 and 323, which have been shown to be maternally expressed in other species, were also more than 4-fold overexpressed in the cattle parthenogenetic samples.
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Affiliation(s)
- Debra K Berg
- AgResearch Ltd, Ruakura Agricultural Centre, 10 Bisley Road, Hamilton 3214, New Zealand
| | - Peter L Pfeffer
- AgResearch Ltd, Ruakura Agricultural Centre, 10 Bisley Road, Hamilton 3214, New Zealand
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40
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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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STAT3 signaling stimulates miR-21 expression in bovine cumulus cells during in vitro oocyte maturation. Sci Rep 2018; 8:11527. [PMID: 30068990 PMCID: PMC6070548 DOI: 10.1038/s41598-018-29874-w] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/18/2018] [Indexed: 01/10/2023] Open
Abstract
MicroRNAs are potent regulators of gene expression that have been widely implicated in reproduction and embryo development. Recent studies have demonstrated that miR-21, a microRNA extensively studied in the context of disease, is important in multiple facets of reproductive biology including folliculogenesis, ovulation, oocyte maturation and early mammalian development. Surprisingly, little is known about the mechanisms that regulate miR-21 and no studies have characterized these regulatory pathways in cumulus-oocyte complexes (COCs). We therefore investigated miR-21 in an in vitro model of bovine oocyte maturation. Levels of the primary transcript of miR-21 (pri-miR-21) and mature miR-21 increased markedly in COCs over the maturation period. Cloning of the bovine pri-miR-21 gene and promoter by 5′3′RACE (rapid amplification of cDNA ends) revealed a highly conserved region immediately upstream of the transcription start site and two alternatively-spliced variants of pri-miR-21. The promoter region contained several putative transcription factor binding sites, including two for signal transducer and activator of transcription 3 (STAT3). Mutation of these sites significantly decreased both the intrinsic activity of pri-miR-21 promoter-luciferase constructs and the response to leukemia inhibitory factor (LIF) (a STAT3 activator) in cultured MCF7 cells. In COCs, treatment with a STAT3 pathway inhibitor markedly decreased pri-miR-21 expression and prevented cumulus expansion. Pri-miR-21 expression was also inhibited by the protein synthesis inhibitor cycloheximide, suggesting that a protein ligand or signaling cofactor synthesized during maturation is necessary for transcription. Together these studies represent the first investigation of signaling pathways that directly influence miR-21 expression in bovine oocytes and cumulus cells.
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Pasquariello R, Fernandez-Fuertes B, Strozzi F, Pizzi F, Mazza R, Lonergan P, Gandolfi F, Williams JL. Profiling bovine blastocyst microRNAs using deep sequencing. Reprod Fertil Dev 2018; 29:1545-1555. [PMID: 27623773 DOI: 10.1071/rd16110] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 06/24/2016] [Indexed: 12/14/2022] Open
Abstract
MicroRNAs (miRNAs) are known to control several reproductive functions, including oocyte maturation, implantation and early embryonic development. Recent advances in deep sequencing have allowed the analysis of all miRNAs of a sample. However, when working with embryos, due to the low RNA content, miRNA profiling is challenging because of the relatively large amount of total RNA required for library preparation protocols. In the present study we compared three different procedures for RNA extraction and prepared libraries using pools of 30 bovine blastocysts. In total, 14 of the 15 most abundantly expressed miRNAs were common to all three procedures. Furthermore, using miRDeep discovery and annotation software (Max Delbrück Center), we identified 1363 miRNA sequences, of which bta-miR-10b and bta-miR-378 were the most abundant. Most of the 179 genes identified as experimentally validated (86.6%) or predicted targets (13.4%) were associated with cancer canonical pathways. We conclude that reliable analysis of bovine blastocyst miRNAs can be achieved using the procedures described herein. The repeatability of the results across different procedures and independent replicates, as well as their consistency with results obtained in other species, support the biological relevance of these miRNAs and of the gene pathways they modulate in early embryogenesis.
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Affiliation(s)
- R Pasquariello
- Dipartimento di Scienze Agrarie e Ambientali - Produzione, Territori, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy
| | - B Fernandez-Fuertes
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - F Strozzi
- Parco Tecnologico Padano, Via Einstein Albert, 26900, Lodi, Italy
| | - F Pizzi
- Istituto di Biologia e Biotecnologia Agraria - Consiglio Nazionale delle Ricerche, Via Einstein Albert, 26900, Lodi, Italy
| | - R Mazza
- Associazione Italiana Allevatori, Via Bergamo 292, 26100, Cremona, Italy
| | - P Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Dublin, Ireland
| | - F Gandolfi
- Dipartimento di Scienze Agrarie e Ambientali - Produzione, Territori, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy
| | - J L Williams
- School of Animal and Veterinary Sciences, Faculty of Science, University of Adelaide, Roseworthy, SA 5371, Australia
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Metodiev S, Thekkoot D, Young J, Onteru S, Rothschild M, Dekkers J. A whole-genome association study for litter size and litter weight traits in pigs. Livest Sci 2018. [DOI: 10.1016/j.livsci.2018.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Pande HO, Tesfaye D, Hoelker M, Gebremedhn S, Held E, Neuhoff C, Tholen E, Schellander K, Wondim DS. MicroRNA-424/503 cluster members regulate bovine granulosa cell proliferation and cell cycle progression by targeting SMAD7 gene through activin signalling pathway. J Ovarian Res 2018; 11:34. [PMID: 29716627 PMCID: PMC5930509 DOI: 10.1186/s13048-018-0410-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 04/23/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The granulosa cells are indispensable for follicular development and its function is orchestrated by several genes, which in turn posttranscriptionally regulated by microRNAs (miRNA). In our previous study, the miRRNA-424/503 cluster was found to be highly abundant in bovine granulosa cells (bGCs) of preovulatory dominant follicle compared to subordinate counterpart at day 19 of the bovine estrous cycle. Other study also indicated the involvement of miR-424/503 cluster in tumour cell resistance to apoptosis suggesting this miRNA cluster may involve in cell survival. However, the role of miR-424/503 cluster in granulosa cell function remains elusive Therefore, this study aimed to investigate the role of miRNA-424/503 cluster in bGCs function using microRNA gain- and loss-of-function approaches. RESULTS The role of miR-424/503 cluster members in granulosa cell function was investigated by overexpressing or inhibiting its activity in vitro cultured granulosa cells using miR-424/503 mimic or inhibitor, respectively. Luciferase reporter assay showed that SMAD7 and ACVR2A are the direct targets of the miRNA-424/503 cluster members. In line with this, overexpression of miRNA-424/503 cluster members using its mimic and inhibition of its activity by its inhibitor reduced and increased, respectively the expression of SMAD7 and ACVR2A. Furthermore, flow cytometric analysis indicated that overexpression of miRNA-424/503 cluster members enhanced bGCs proliferation by promoting G1- to S- phase cell cycle transition. Modulation of miRNA-424/503 cluster members tended to increase phosphorylation of SMAD2/3 in the Activin signalling pathway. Moreover, sequence specific knockdown of SMAD7, the target gene of miRNA-424/503 cluster members, using small interfering RNA also revealed similar phenotypic and molecular alterations observed when miRNA-424/503 cluster members were overexpressed. Similarly, to get more insight about the role of miRNA-424/503 cluster members in activin signalling pathway, granulosa cells were treated with activin A. Activin A treatment increased cell proliferation and downregulation of both miRNA-424/503 members and its target gene, indicated the presence of negative feedback loop between activin A and the expression of miRNA-424/503. CONCLUSION This study suggests that the miRNA-424/503 cluster members are involved in regulating bovine granulosa cell proliferation and cell cycle progression. Further, miRNA-424/503 cluster members target the SMAD7 and ACVR2A genes which are involved in the activin signalling pathway.
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Affiliation(s)
- Hari Om Pande
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115, Bonn, Germany
| | - Dawit Tesfaye
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115, Bonn, Germany.,Center of Integrated Dairy Research, University of Bonn, Bonn, Germany
| | - Michael Hoelker
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115, Bonn, Germany.,Teaching and Research Station Frankenforst, Faculty of Agriculture, University of Bonn, Königswinter, Germany.,Center of Integrated Dairy Research, University of Bonn, Bonn, Germany
| | - Samuel Gebremedhn
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115, Bonn, Germany
| | - Eva Held
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115, Bonn, Germany.,Teaching and Research Station Frankenforst, Faculty of Agriculture, University of Bonn, Königswinter, Germany
| | - Christiane Neuhoff
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115, Bonn, Germany
| | - Ernst Tholen
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115, Bonn, Germany
| | - Karl Schellander
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115, Bonn, Germany.,Center of Integrated Dairy Research, University of Bonn, Bonn, Germany
| | - Dessie Salilew Wondim
- Department of Animal Breeding and Husbandry, Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115, Bonn, Germany.
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Han X, Xue R, Yuan HJ, Wang TY, Lin J, Zhang J, Liang B, Tan JH. MicroRNA-21 plays a pivotal role in the oocyte-secreted factor-induced suppression of cumulus cell apoptosis. Biol Reprod 2018; 96:1167-1180. [PMID: 28486664 DOI: 10.1093/biolre/iox044] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 05/08/2017] [Indexed: 01/22/2023] Open
Abstract
It is known that oocytes and cumulus cells (CCs) are more resistant to apoptosis than other compartments of the antral follicle. However, although oocyte-secreted factors (OSFs) have been found to be involved in suppressing bovine CC apoptosis, little is known about the intracellular mechanisms by which OSFs render CCs resistant to apoptosis. Here, we show that coculture with mouse or pig cumulus-denuded oocytes, culture with recombinant mouse growth differentiation factor-9 (GDF-9), or culture in pig oocyte-conditioned medium (POCM) significantly inhibited CC apoptosis of mouse oocytectomized cumulus oophorus complexes (OOXs). The POCM contained both GDF-9 and bone morphogenetic protein-15, and their levels remained constant during culture of OOXs. The level of microRNA-21 (miR-21) was significantly lower in OOXs than in COCs after culture in a simplified α-MEM medium, but increased significantly when OOXs were cultured with GDF-9 or in POCM. The level of miR-21 in OSF-treated CCs was correlated with that of Dicer1 but not that of Drosha mRNA. Inhibiting activin receptor-like kinase 5 or SMAD3 completely abolished the beneficial effects of GDF-9 or POCM on CC apoptosis and miR-21 levels. Up- and downregulating miR-21 expression significantly reduced and increased CC apoptosis, respectively. The OSF-upregulated miR-21 expression suppressed CC apoptosis with activation of the PI3K/Akt signaling. In conclusion, miR-21 plays a pivotal role in the OSF suppression of CC apoptosis. OSFs upregulated miR-21 expression through the TGF-β superfamily signaling, which worked through DICER. MicroRNA-21 prevented apoptosis via the PI3K/Akt signaling.
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Affiliation(s)
- Xiao Han
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, Shandong Province, P. R. China
| | - Rui Xue
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, Shandong Province, P. R. China
| | - Hong-Jie Yuan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, Shandong Province, P. R. China
| | - Tian-Yang Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, Shandong Province, P. R. China
| | - Juan Lin
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, Shandong Province, P. R. China
| | - Jie Zhang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, Shandong Province, P. R. China
| | - Bo Liang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, Shandong Province, P. R. China
| | - Jing-He Tan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City, Shandong Province, P. R. China
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Zhang X, Li L, Jiang H, Ma JE, Li J, Chen J. Identification and differential expression of microRNAs in testis and ovary of Amur sturgeon (Acipenser schrenckii). Gene 2018. [PMID: 29524574 DOI: 10.1016/j.gene.2018.03.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND MicroRNAs (miRNAs) cooperate with sex-related genes in post-transcriptional regulation and play extremely important roles in the establishment of sexually dimorphic traits in animals. However, the gonad miRNAs and expression patterns of miRNAs in sturgeon have not been investigated. METHODS In the present study, we used high-throughput small RNA sequencing (RNA-Seq) to discover gonad miRNAs from the ovaries and testes of Amur sturgeons (Acipenser schrenckii). Further, microarray and real-time PCR assays were performed to identify the expression patterns of gonad miRNAs. RESULTS As a result, a total of 679 conserved and 51 novel miRNAs were successfully discovered in the gonads of A. schrenckii. Moreover, we found wide sequence variations (isomiRs) in gonad miRNAs, including 5' and 3' isomiRs. Our microarray analysis further characterized the 730 miRNAs expression profiles, which indicated that 117 differentially expressed miRNAs were detected with sex-biased patterns: 71 testis-biased and 46 ovary-biased miRNAs. Based on bioinformatics prediction, we found that there were functional differences between the testis-biased and ovary-biased miRNA targets involved in reproductive-related GO and KEGG pathways. Further, the association of the differentially expressed miRNAs and sex-related target mRNAs was uncovered. Finally, the expression patterns of 11 sex-biased miRNAs and 7 sex-related targets were validated in testes and ovaries using real-time PCR. Putative, negatively expressed miRNA-mRNA relationships were confirmed, such as Dmrt1 and asc-miR-2779, AR and asc-miR-203b-3p, foxl2 and asc-miR-30d. CONCLUSION This study provides information regarding the gonad miRNAs in sturgeon. The differential expression miRNAs in the gonads will help us to further understand the role of miRNA-mediated post-transcriptional regulation in the ovary and testis of sturgeon.
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Affiliation(s)
- Xiujuan Zhang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong, China
| | - Linmiao Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong, China
| | - Haiying Jiang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong, China
| | - Jing E Ma
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong, China
| | - Juan Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong, China
| | - Jinping Chen
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong, China..
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47
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Wang TY, Zhang J, Zhu J, Lian HY, Yuan HJ, Gao M, Luo MJ, Tan JH. Expression profiles and function analysis of microRNAs in postovulatory aging mouse oocytes. Aging (Albany NY) 2018; 9:1186-1201. [PMID: 28394765 PMCID: PMC5425121 DOI: 10.18632/aging.101219] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 03/28/2017] [Indexed: 01/07/2023]
Abstract
In this study, microRNA (miRNA) profiles in postovulatory aging mouse oocytes were analyzed by microarray screening and RT-qPCR. Hierarchical cluster analysis on the microarray data and KEGG pathway enrichment analysis on the mRNAs targeted by differentially expressed (DE) miRNAs between two adjacent egg-ages suggest that while only a mild alteration in miRNA expression occurred from 13 to 18 h, a great change took place from 18 to 24 h post hCG injection. Theoretical exploration on functions of the predicted target genes suggest that KEGG pathways enriched by 13-18 h DE miRNAs are correlated with early events of oocyte aging while pathways most enriched by 18-24 h or 24-30 h DE miRNAs are correlated with the late symptoms of aged oocytes. Experimental verification on functions of the key proteins predicted by the KEGG analysis and injection of miR-98 mimics or inhibitors further confirmed that miRNAs played stimulatory/inhibitory roles in postovulatory oocyte aging. In conclusion, marked changes in miRNA expression are associated with significant alterations in function and morphology of postovulatory aging oocytes.
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Affiliation(s)
- Tian-Yang Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City 271018, P. R. China
| | - Jie Zhang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City 271018, P. R. China
| | - Jiang Zhu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City 271018, P. R. China
| | - Hua-Yu Lian
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City 271018, P. R. China
| | - Hong-Jie Yuan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City 271018, P. R. China
| | - Min Gao
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City 271018, P. R. China
| | - Ming-Jiu Luo
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City 271018, P. R. China
| | - Jing-He Tan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai-an City 271018, P. R. China
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Tesfaye D, Gebremedhn S, Salilew-Wondim D, Hailay T, Hoelker M, Grosse-Brinkhaus C, Schellander K. MicroRNAs: tiny molecules with a significant role in mammalian follicular and oocyte development. Reproduction 2017; 155:R121-R135. [PMID: 29170163 DOI: 10.1530/rep-17-0428] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 11/23/2017] [Indexed: 12/20/2022]
Abstract
The genetic regulation of female fertility (follicular development, oocyte maturation and early preimplantation embryo development) involves the spatio-temporal regulation of those genes that play key roles in various stages of the female reproductive axis. MicroRNAs (miRNAs), a class of small non-coding RNAs, are known to regulate the expression of a large proportion of such genes. In recent decades, multiple studies have aimed to determine the roles of these non-coding RNAs in mammalian follicular development, oocyte growth and embryo development. These studies have applied a variety of approaches, including conditional knockout of miRNA biogenesis genes, high-throughput sequencing technologies for pattern recognition in miRNA expression and loss- and gain-of-function of miRNAs in various animal models. In addition to the cellular miRNAs, a large variety of RNAs are found in circulation, being coupled with extracellular vesicles, proteins and lipids. Because of their potential as diagnostic markers for abnormal physiologies, there is increasing interest in the identification of extracellular miRNAs in various biological fluids and spent in vitro culture media. This review focuses on studies addressing the expression and potential role of cellular and extracellular miRNAs in mammalian follicular cell physiology and subsequent ovarian functionality and oocyte maturation.
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Affiliation(s)
- Dawit Tesfaye
- Institute of Animal SciencesDepartment of Animal Breeding and Husbandry, University of Bonn, Bonn, Germany .,Center of Integrated Dairy ResearchUniversity of Bonn, Bonn, Germany
| | - Samuel Gebremedhn
- Institute of Animal SciencesDepartment of Animal Breeding and Husbandry, University of Bonn, Bonn, Germany.,Center of Integrated Dairy ResearchUniversity of Bonn, Bonn, Germany
| | - Dessie Salilew-Wondim
- Institute of Animal SciencesDepartment of Animal Breeding and Husbandry, University of Bonn, Bonn, Germany.,Center of Integrated Dairy ResearchUniversity of Bonn, Bonn, Germany
| | - Tsige Hailay
- Institute of Animal SciencesDepartment of Animal Breeding and Husbandry, University of Bonn, Bonn, Germany.,Center of Integrated Dairy ResearchUniversity of Bonn, Bonn, Germany
| | - Michael Hoelker
- Institute of Animal SciencesDepartment of Animal Breeding and Husbandry, University of Bonn, Bonn, Germany.,Center of Integrated Dairy ResearchUniversity of Bonn, Bonn, Germany
| | - Christine Grosse-Brinkhaus
- Institute of Animal SciencesDepartment of Animal Breeding and Husbandry, University of Bonn, Bonn, Germany
| | - Karl Schellander
- Institute of Animal SciencesDepartment of Animal Breeding and Husbandry, University of Bonn, Bonn, Germany.,Center of Integrated Dairy ResearchUniversity of Bonn, Bonn, Germany
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Cho SH, An HJ, Kim KA, Ko JJ, Kim JH, Kim YR, Ahn EH, Rah H, Lee WS, Kim NK. Single nucleotide polymorphisms at miR-146a/196a2 and their primary ovarian insufficiency-related target gene regulation in granulosa cells. PLoS One 2017; 12:e0183479. [PMID: 28841705 PMCID: PMC5571913 DOI: 10.1371/journal.pone.0183479] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 08/05/2017] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs post-transcriptionally regulate gene expression in animals and plants. The aim of this study was to identify new target genes for microRNA polymorphisms (miR-146aC>G and miR-196a2T>C) in primary ovarian insufficiency (POI). We cloned and transfected miR-146aC>G and miR-196a2T>C into human granulosa cells and used microarrays and qPCR-arrays to examine the changes in the messenger RNA expression profile. We show miR-146aC>G and miR-196a2T>C change the mRNA expression patterns in granulosa cell. In each case, mRNAs were up or down-regulated after treatments with miR-146a C or G and miR-196a2 T or C. We found that miR-146a led to a significantly altered regulation of the mRNA levels of FOXO3, FOXL2 and CCND2 compared to controls. We also found that the polymorphisms of miR-146a led to a significantly altered regulation of CCND2 and FOXO3. Our results suggest that miR-146aC>G and miR-196a2T>C can regulate the levels of many of their target transcripts. In addition, specific target genes of miR-146aC>G polymorphisms may be involved in granulosa cell regulation.
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Affiliation(s)
- Sung Hwan Cho
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea
| | - Hui Jeong An
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea
| | - Kyung Ah Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea
| | - Jung Jae Ko
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea
| | - Ji Hyang Kim
- Department of Obstetrics and Gynecology, School of Medicine, CHA University, Seongnam, South Korea
| | - Young Ran Kim
- Department of Obstetrics and Gynecology, School of Medicine, CHA University, Seongnam, South Korea
| | - Eun Hee Ahn
- Department of Obstetrics and Gynecology, School of Medicine, CHA University, Seongnam, South Korea
| | - HyungChul Rah
- Healthcare Bigdata Linkage Platform Team, Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Woo Sik Lee
- Fertility Center of CHA Gangnam Medical Center, School of Medicine, CHA University, Seoul, South Korea
- * E-mail: , (NKK); (WSL)
| | - Nam Keun Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam, South Korea
- * E-mail: , (NKK); (WSL)
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50
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Tesfaye D, Salilew-Wondim D, Gebremedhn S, Sohel MMH, Pandey HO, Hoelker M, Schellander K. Potential role of microRNAs in mammalian female fertility. Reprod Fertil Dev 2017; 29:8-23. [PMID: 28278789 DOI: 10.1071/rd16266] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Since the first evidence for the involvement of microRNAs (miRNAs) in various reproductive processes through conditional knockout of DICER, several studies have been conducted to investigate the expression pattern and role of miRNAs in ovarian follicular development, oocyte maturation, embryo development, embryo-maternal communication, pregnancy establishment and various reproductive diseases. Although advances in sequencing technology have fuelled miRNA studies in mammalian species, the presence of extracellular miRNAs in various biological fluids, including follicular fluid, blood plasma, urine and milk among others, has opened a new door in miRNA research for their use as diagnostic markers. This review presents data related to the identification and expression analysis of cellular miRNA in mammalian female fertility associated with ovarian folliculogenesis, oocyte maturation, preimplantation embryo development and embryo implantation. In addition, the relevance of miRNAs to female reproductive disorders, including polycystic ovary syndrome (PCOS), endometritis and abnormal pregnancies, is discussed for various mammalian species. Most importantly, the mechanism of release and the role of extracellular miRNAs in cell-cell communication and their potential role as non-invasive markers in female fertility are discussed in detail. Understanding this layer of regulation in female reproduction processes will pave the way to understanding the genetic regulation of female fertility in mammalian species.
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Affiliation(s)
- Dawit Tesfaye
- Institute of Animal Science, Department of Animal Breeding and Husbandry, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany
| | - Dessie Salilew-Wondim
- Institute of Animal Science, Department of Animal Breeding and Husbandry, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany
| | - Samuel Gebremedhn
- Institute of Animal Science, Department of Animal Breeding and Husbandry, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany
| | - Md Mahmodul Hasan Sohel
- Department of Animal Science, Faculty of Agriculture, Genome and Stem Cell Centre, Erciyes University, Kayseri 38039, Turkey
| | - Hari Om Pandey
- Institute of Animal Science, Department of Animal Breeding and Husbandry, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany
| | - Michael Hoelker
- Institute of Animal Science, Department of Animal Breeding and Husbandry, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany
| | - Karl Schellander
- Institute of Animal Science, Department of Animal Breeding and Husbandry, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany
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