1
|
Toosinia S, Davoodian N, Arabi M, Kadivar A. Ameliorating Effect of Sodium Selenite on Developmental and Molecular Response of Bovine Cumulus-Oocyte Complexes Matured in Vitro Under Heat Stress Condition. Biol Trace Elem Res 2024; 202:161-174. [PMID: 37127784 DOI: 10.1007/s12011-023-03678-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
Selenium (Se), an essential trace element, plays an important role in the antioxidative defense mechanism, and it has been proven to improve fertility and reproductive efficiency in dairy cattle. The present study evaluated the potential protective action of Se supplement of in vitro maturation (IVM) media on the maturation and subsequent development of bovine cumulus-oocyte complexes (COCs) exposed to heat stress (HS). The treatment with Se improved the viability of cumulus cells (CCs) and oocytes (P < 0.05). The proportion of oocytes reached metaphase II (MII) and those arrested at metaphase I (MI) was greater and lower in treatment than control respectively (P < 0.05). Supplementation with Se increased the percentage of cleaved embryos, total blastocysts, and blastocyst/cleavage ratio (P < 0.05). Moreover, the upregulation of CCND1, SEPP1, GPX-4, SOD, CAT, and downregulation of GRP78, CHOP, and BAX in both Se-treated CCs and oocytes were recorded. The upregulation of NRF2 was detected in Se-treated CCs other than in oocytes, which showed upregulation of IGF2R and SOX-2 as the markers of quality as well. Se supplement in IVM media improved the viability, maturation, and the level of transcripts related to antioxidant defense and quality of heat-treated oocytes, which coincided with greater subsequent development outcomes. Se ameliorated the viability of CCs along with upregulation of antioxidative candidate gene expression and downregulation of apoptosis-related ones to support their protective role on restoring the quality of oocytes against compromising effects of HS.
Collapse
Affiliation(s)
- Shervin Toosinia
- Department of Animal Sciences, Faculty of Basic Science, Shahrekord University, Shahrekord, Iran
| | - Najmeh Davoodian
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran.
| | - Mehran Arabi
- Department of Animal Sciences, Faculty of Basic Science, Shahrekord University, Shahrekord, Iran
| | - Ali Kadivar
- Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
| |
Collapse
|
2
|
Jeong PS, Yang HJ, Jeon SB, Gwon MA, Kim MJ, Kang HG, Lee S, Park YH, Song BS, Kim SU, Koo DB, Sim BW. Luteolin supplementation during porcine oocyte maturation improves the developmental competence of parthenogenetic activation and cloned embryos. PeerJ 2023; 11:e15618. [PMID: 37377789 PMCID: PMC10292194 DOI: 10.7717/peerj.15618] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
Luteolin (Lut), a polyphenolic compound that belongs to the flavone subclass of flavonoids, possesses anti-inflammatory, cytoprotective, and antioxidant activities. However, little is known regarding its role in mammalian oocyte maturation. This study examined the effect of Lut supplementation during in vitro maturation (IVM) on oocyte maturation and subsequent developmental competence after somatic cell nuclear transfer (SCNT) in pigs. Lut supplementation significantly increased the proportions of complete cumulus cell expansion and metaphase II (MII) oocytes, compared with control oocytes. After parthenogenetic activation or SCNT, the developmental competence of Lut-supplemented MII oocytes was significantly enhanced, as indicated by higher rates of cleavage, blastocyst formation, expanded or hatching blastocysts, and cell survival, as well as increased cell numbers. Lut-supplemented MII oocytes exhibited significantly lower levels of reactive oxygen species and higher levels of glutathione than control MII oocytes. Lut supplementation also activated lipid metabolism, assessed according to the levels of lipid droplets, fatty acids, and ATP. The active mitochondria content and mitochondrial membrane potential were significantly increased, whereas cytochrome c and cleaved caspase-3 levels were significantly decreased, by Lut supplementation. These results suggest that Lut supplementation during IVM improves porcine oocyte maturation through the reduction of oxidative stress and mitochondria-mediated apoptosis.
Collapse
Affiliation(s)
- Pil-Soo Jeong
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Hae-Jun Yang
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Se-Been Jeon
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
- Department of Animal Science, College of Natural Resources & Life Science, Pusan National University, Miryang, Republic of Korea
| | - Min-Ah Gwon
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
- Department of Biotechnology, College of Engineering, Daegu University, Gyeongsan, Republic of Korea
| | - Min Ju Kim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
- Department of Animal Science, College of Natural Resources & Life Science, Pusan National University, Miryang, Republic of Korea
| | - Hyo-Gu Kang
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
- Department of Animal Science and Biotechnology, College of Agriculture and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Sanghoon Lee
- Laboratory of Theriogenology, College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Young-Ho Park
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Bong-Seok Song
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Sun-Uk Kim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
- Department of Functional Genomics, University of Science and Technology, Daejeon, Republic of Korea
| | - Deog-Bon Koo
- Department of Biotechnology, College of Engineering, Daegu University, Gyeongsan, Republic of Korea
| | - Bo-Woong Sim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| |
Collapse
|
3
|
Li Y, Chang HM, Sung YW, Zhu H, Leung PCK, Sun YP. Betacellulin regulates gap junction intercellular communication by inducing the phosphorylation of connexin 43 in human granulosa-lutein cells. J Ovarian Res 2023; 16:103. [PMID: 37231448 DOI: 10.1186/s13048-023-01185-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/06/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND The gap junction protein, connexin 43 (Cx43) is highly expressed in human granulosa-lutein (hGL) cells. The phosphorylation of certain amino acid residues in the Cx43 protein has been shown to be related to a decline in gap junction intercellular communication (GJIC), which subsequently affects oocyte meiotic resumption. As a member of the epidermal growth factor (EGF) family, betacellulin (BTC) mediates luteinizing hormone (LH)-induced oocyte maturation and cumulus cell expansion in mammalian follicles. Whether BTC can regulate Cx43 phosphorylation, which further reduces Cx43-coupled GJIC activity in hGL cells remains to be determined. METHODS Immortalized human granulosa cells (SVOG cells) and primary human granulosa-lutein cells obtained from women undergoing in vitro fertilization in an academic research center were used as the study models. The expression levels of Cx43 and phosphorylated Cx43 were examined following cell incubation with BTC at different time points. Several kinase inhibitors (sotrastaurin, AG1478, and U0126) and small interfering RNAs targeting EGF receptor (EGFR) and receptor tyrosine-protein kinase 4 (ErbB4) were used to verify the specificity of the effects and to investigate the molecular mechanisms. Real-time-quantitative PCR and western blot analysis were used to detect the specific mRNA and protein levels, respectively. GJIC between SVOG cells were evaluated using a scrape loading and dye transfer assay. Results were analyzed by one-way analysis of variance. RESULTS The results showed that BTC induced the rapid phosphorylation of Cx43 at serine368 without altering the expression of Cx43 in primary and immortalized hGL cells. Additionally, using a dual inhibition approach (kinase inhibitors and siRNA-based expression knockdown), we demonstrated that this effect was mainly mediated by the EGFR but not the ErbB4 receptor. Furthermore, using a protein kinase C (PKC) kinase assay and a scrape-loading and dye transfer assay, we revealed that PKC signaling is the downstream signaling pathway that mediates the increase in Cx43 phosphorylation and subsequent decrease in GJIC activity in response to BTC treatment in hGL cells. CONCLUSIONS BTC promptly induced the phosphorylation of connexin 43 at Ser368, leading to decreased GJIC activity in hGL cells. The BTC-induced cellular activities were most likely driven by the EGFR-mediated PKC-dependent signaling pathway. Our findings shed light on the detailed molecular mechanisms by which BTC regulates the process of oocyte meiotic resumption.
Collapse
Affiliation(s)
- Yuxi Li
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, 40, Daxue Road, Zhengzhou, 450052, Henan, China
- Department of Obstetrics and Gynecology, BC Children's Hospital Research Institute, University of British Columbia, Room 317, 950 West 28th Avenue, Vancouver, BC, V5Z 4H4, Canada
- Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hsun-Ming Chang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung, Taiwan
| | - Yu-Wen Sung
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung, Taiwan
| | - Hua Zhu
- Department of Obstetrics and Gynecology, BC Children's Hospital Research Institute, University of British Columbia, Room 317, 950 West 28th Avenue, Vancouver, BC, V5Z 4H4, Canada
| | - Peter C K Leung
- Department of Obstetrics and Gynecology, BC Children's Hospital Research Institute, University of British Columbia, Room 317, 950 West 28th Avenue, Vancouver, BC, V5Z 4H4, Canada.
| | - Ying-Pu Sun
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, 40, Daxue Road, Zhengzhou, 450052, Henan, China.
- Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
- Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| |
Collapse
|
4
|
Hessock EA, Edwards JL, Schrick FN, Payton RR, Campagna SR, Pollock AB, Clark HM, Stokes AE, Klabnik JL, Hill KS, Roberts SR, Hinson MG, Moorey SE. Metabolite abundance in bovine preovulatory follicular fluid is influenced by follicle developmental progression post estrous onset in cattle. Front Cell Dev Biol 2023; 11:1156060. [PMID: 37215073 PMCID: PMC10196500 DOI: 10.3389/fcell.2023.1156060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/11/2023] [Indexed: 05/24/2023] Open
Abstract
Introduction: Preovulatory follicle response to the luteinizing hormone (LH) surge leads to metabolic, molecular, and functional changes in the oocyte and somatic follicular cells from the onset of estrus to ovulation. Follicular fluid contains metabolites, miRNAs, proteins, and hormones that are byproducts of follicular metabolism and support cellular processes of oocyte, cumulus, and granulosa constituents. Numerous studies have highlighted the importance of follicular fluid composition to support fertility, but critical gaps exist toward understanding dynamic modifications in the follicular fluid metabolome from estrous onset to ovulation. The hypothesis was that abundance of follicular fluid metabolites is dependent on follicle progression post LH surge and variability in follicular fluid metabolome profiles indicate key processes required for preparation of the follicle and oocyte for optimal fertility. The objective was to generate preovulatory follicular fluid metabolome profiles and discern differences in the metabolome of preovulatory follicular fluid samples collected at onset of estrus, 11 h post estrous onset, and 18 h post estrous onset. Methods: Estrus was synchronized in non-lactating Jersey cows (n=40) and follicular fluid was collected immediately after the first observed standing mount (hr 0) or at approximately h 11 or 18 after the first standing mount. Ultra-High-Performance Liquid Chromatography-High Resolution Mass Spectrometry was performed on preovulatory follicular fluid samples (n = 9 collected at hr 0, 9 at h 11, and 10 at h 18) and a multiple linear model was performed to determine if time post estrous onset impacted metabolite abundance. Results: Metabolites influenced by time post estrous onset were tested for enrichment in KEGG pathways. Ninety metabolites were identified in follicular fluid samples. Twenty metabolites differed in abundance among timepoints post estrous onset (p ≤ 0.05). Pathways corresponding to amino acid and energy metabolism were enriched with metabolites impacted by time post estrous onset (FDR ≤ 0.10). Discussion: Results from the current study indicate early response to the LH surge to increase bioavailability of amino acids and metabolites used by the cumulus and granulosa cells for energy production and shuttled into the oocyte to support meiotic maturation. Such metabolites may later be used by the ovulatory follicle for protein production.
Collapse
Affiliation(s)
- Emma A. Hessock
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - J. Lannett Edwards
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - F. Neal Schrick
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - Rebecca R. Payton
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - Shawn R. Campagna
- Department of Chemistry, University of Tennessee, Knoxville, TN, United States
| | - Abigayle B. Pollock
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - Hannah M. Clark
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - Allyson E. Stokes
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - Jessica L. Klabnik
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - Kennedy S. Hill
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - Samantha R. Roberts
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - Meredith G. Hinson
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| | - Sarah E. Moorey
- Department of Animal Science, University of Tennessee, Knoxville, TN, United States
| |
Collapse
|
5
|
Using Cumulus Cell Biopsy as a Non-Invasive Tool to Access the Quality of Bovine Oocytes: How Informative Are They? Animals (Basel) 2022; 12:ani12223113. [PMID: 36428341 PMCID: PMC9686866 DOI: 10.3390/ani12223113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/14/2022] [Accepted: 10/25/2022] [Indexed: 11/13/2022] Open
Abstract
The present study aimed to determine whether cumulus cells (CC) biopsy, acquired before or after in vitro maturation (IVM), presents similar gene expression pattern and if would compromises oocyte quality. First, immature cumulus oocyte complexes (COCs) were distributed: (1) maturated in groups (control); (2) individually maturated, but not biopsied; (3) subjected to CC biopsy before maturation and individually matured; (4) individually matured and submitted to CC biopsy after maturation; (5) individually matured and CC biopsied before and after maturation. Secondly, candidate genes, described as potential markers of COCs quality, were quantified by RT-qPCR in CCs before and after IVM. After in vitro fertilization (IVF), zygotes were tracked and sorted regarding their developmental potential: fully developed to embryo, cleaved and arrested, and not-cleaved. The COC’s biopsy negatively affects embryo development (p < 0.05), blastocyst cell number (p < 0.05), and apoptotic cell ratio (p < 0.05), both before and after IVM. The PTGS2, LUM, ALCAM, FSHR, PGR, SERPINE2, HAS2, and PDRX3 genes were differentially expressed (p < 0.05) on matured CCs. Only PGR gene (p = 0.04) was under-expressed on matured CCs on Not-Cleaved group. The SERPINE2 gene was overexpressed (p = 0.01) in the Cleaved group on immature CCs. In summary, none of the selected gene studies can accurately predict COC’s fate after fertilization.
Collapse
|
6
|
Clark ZL, Ruebel ML, Schall PZ, Karl KR, Ireland JJ, Latham KE. Follicular Hyperstimulation Dysgenesis: New Explanation for Adverse Effects of Excessive FSH in Ovarian Stimulation. Endocrinology 2022; 163:bqac100. [PMID: 35833461 PMCID: PMC9342683 DOI: 10.1210/endocr/bqac100] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Indexed: 11/19/2022]
Abstract
High follicle-stimulating hormone (FSH) doses during ovarian stimulation protocols for assisted reproductive technologies (ART) are detrimental to ovulatory follicle function and oocyte quality. However, the mechanisms are unclear. In a small ovarian reserve heifer model, excessive FSH doses lead to phenotypic heterogeneity of ovulatory size follicles, with most follicles displaying signs of premature luteinization and a range in severity of abnormalities. By performing whole transcriptome analyses of granulosa cells, cumulus cells, and oocytes from individual follicles of animals given standard or excessive FSH doses, we identified progressive changes in the transcriptomes of the 3 cell types, with increasing severity of follicular abnormality with the excessive doses. The granulosa and cumulus cells each diverged progressively from their normal phenotypes and became highly similar to each other in the more severely affected follicles. Pathway analysis indicates a possible dysregulation of the final stages of folliculogenesis, with processes characteristic of ovulation and luteinization occurring concurrently rather than sequentially in the most severely affected follicles. These changes were associated with disruptions in key pathways in granulosa and cumulus cells, which may account for previously reported reduced estradiol production, enhanced progesterone and oxytocin production and diminished ovulation rates. Predicted deficiencies in oocyte survival, stress response, and fertilization suggest likely reductions in oocyte health, which could further compromise oocyte quality and ART outcomes.
Collapse
Affiliation(s)
- Zaramasina L Clark
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Meghan L Ruebel
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
- USDA-ARS Arkansas Children’s Nutrition Center 15 Children’s Way Little Rock, AR 72202, USA
| | - Peter Z Schall
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
- University of Michigan Medical School, Department of Human Genetics, Ann Arbor, Michigan, USA
| | - Kaitlin R Karl
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
| | - James J Ireland
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
| | - Keith E Latham
- Reproductive and Developmental Sciences Program and the Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
| |
Collapse
|
7
|
Martínez‐Moro Á, González‐Brusi L, Lamas‐Toranzo I, O'Callaghan E, Esteve‐Codina A, Lonergan P, Bermejo‐Álvarez P. RNA-sequencing reveals genes linked with oocyte developmental potential in bovine cumulus cells. Mol Reprod Dev 2022; 89:399-412. [PMID: 35802551 PMCID: PMC9796886 DOI: 10.1002/mrd.23631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 03/27/2022] [Accepted: 06/27/2022] [Indexed: 01/07/2023]
Abstract
Cumulus cells provide an interesting biological material to perform analyses to understand the molecular clues determining oocyte competence. The objective of this study was to analyze the transcriptional differences between cumulus cells from oocytes exhibiting different developmental potentials following individual in vitro embryo production by RNA-seq. Cumulus cells were allocated into three groups according to the developmental potential of the oocyte following fertilization: (1) oocytes developing to blastocysts (Bl+), (2) oocytes cleaving but arresting development before the blastocyst stage (Bl-), and (3) oocytes not cleaving (Cl-). RNAseq was performed on 4 (Cl-) or 5 samples (Bl+ and Bl-) of cumulus cells pooled from 10 cumulus-oocyte complexes per group. A total of 49, 50, and 18 differentially expressed genes (DEGs) were detected in the comparisons Bl+ versus Bl-, Bl+ versus Cl- and Bl- versus Cl-, respectively, showing a fold change greater than 1.5 at an adjusted p value <0.05. Focussing on DEGs in cumulus cells from Bl+ group, 10 DEGs were common to both comparisons (10/49 from Bl+ vs. Bl-, 10/50 from Bl+ vs. Cl-). These DEGs correspond to 6 upregulated genes (HBE1, ITGA1, PAPPA, AKAP12, ITGA5, and SLC1A4), and 4 downregulated genes (GSTA1, PSMB8, FMOD, and SFRP4) in Bl+ compared to the other groups, from which 7 were validated by quantitative PCR (HBE1, ITGA1, PAPPA, AKAP12, ITGA5, PSMB8 and SFRP4). These genes are involved in critical biological functions such as integrin-mediated cell adhesion, oxygen availability, IGF and Wnt signaling or PKA pathway, highlighting specific biological processes altered in incompetent in vitro maturation oocytes.
Collapse
Affiliation(s)
- Álvaro Martínez‐Moro
- Department of Animal Reproduction, INIACSICMadridSpain,EmbryologyIVF SpainMadridSpain
| | | | | | - Elena O'Callaghan
- Agriculture and Food Science, School of Agriculture and Food ScienceUniversity College DublinDublinIreland
| | - Anna Esteve‐Codina
- Functional Genomics, CNAG‐CRG, Centre for Genomic RegulationBarcelona Institute of Science and TechnologyBarcelonaSpain
| | - Pat Lonergan
- Agriculture and Food Science, School of Agriculture and Food ScienceUniversity College DublinDublinIreland
| | | |
Collapse
|
8
|
Budani MC, Gallorini M, Elsallabi O, Pino V, La Fratta I, Pesce M, Ricciotti E, Tiboni GM, Patruno A. Cigarette smoke is associated with up-regulation of inducible NOS and COX-2 protein expression and activity in granulosa cells of women undergoing in vitro fertilization. Reprod Toxicol 2022; 113:128-135. [PMID: 36049621 DOI: 10.1016/j.reprotox.2022.08.013] [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: 06/02/2022] [Revised: 08/03/2022] [Accepted: 08/26/2022] [Indexed: 11/20/2022]
Abstract
Cigarette smoke exposure represents a well-established ovotoxic exogenous stress, but the molecular mechanisms underlying of this effect are still unclear. Cigarette smoke upregulates inflammatory genes in the female reproductive organs, therefore an abnormal inflammation response may contribute to the impairment of female fertility. In this study we investigated for the first time the effect of cigarette smoke exposure on NOS and COX expression and activity and on their transcription factors (CREB and NF-kB) in human GCs and on the release of NO and PGE2 in the FF in smoking and non-smoking patients undergoing IVF treatment. In addition, correlation analysis between AMH serum levels, an index of ovarian reserve, and smoking exposure or iNOS and COX-2 protein expression levels were performed using a Pearson correlation method. Cigarette smoke exposure resulted in a significant increase of iNOS and COX-2 protein expression together with an increase of iNOS activity and PGE2 levels. pNF-kB and pCREB protein expression were upregulated in the GCs of smokers compared to non-smokers. The habit of smoking was negatively correlated with serum AMH levels, and positively correlated with iNOS and COX-2 protein expression levels. The data presented in the current study revealed a novel molecular mechanism underlying the toxic effects of cigarette smoke on fertility. Additional pathways mediating the effects of cigarette smoke exposure in human GCs cannot be excluded and should be investigated in future studies.
Collapse
Affiliation(s)
- M C Budani
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, via dei Vestini 31, 66100 Chieti, Italy
| | - M Gallorini
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, via dei Vestini 31, 66100 Chieti, Italy
| | - O Elsallabi
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, via dei Vestini 31, 66100 Chieti, Italy; Department of Biosciences and Nutrition, Karolinska Institutet, SE-141 57 Huddinge, Sweden
| | - V Pino
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, via dei Vestini 31, 66100 Chieti, Italy
| | - I La Fratta
- Department of Medical, Oral and Biotechnological Sciences, University 'G. d'Annunzio' of Chieti-Pescara, via dei Vestini 31, 66100 Chieti, Italy
| | - M Pesce
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, via dei Vestini 31, 66100 Chieti, Italy
| | - E Ricciotti
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, 3400 Civic Center Boulevard, Philadelphia, PA 19104, United States
| | - G M Tiboni
- Department of Medical, Oral and Biotechnological Sciences, University 'G. d'Annunzio' of Chieti-Pescara, via dei Vestini 31, 66100 Chieti, Italy
| | - A Patruno
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, via dei Vestini 31, 66100 Chieti, Italy.
| |
Collapse
|
9
|
Passos JRS, Guerreiro DD, Otávio KS, Dos Santos-Neto PC, Souza-Neves M, Cuadro F, Nuñez-Olivera R, Crispo M, Vasconcelos FR, Bezerra MJB, Silva RF, Lima LF, Figueiredo JR, Bustamante-Filho IC, Menchaca A, Moura AA. How in vitro maturation changes the proteome of ovine cumulus-oocyte complexes? Mol Reprod Dev 2022; 89:459-470. [PMID: 35901249 DOI: 10.1002/mrd.23638] [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: 02/16/2022] [Revised: 05/29/2022] [Accepted: 07/21/2022] [Indexed: 11/11/2022]
Abstract
The present study evaluated the effects of in vitro maturation (IVM) on the proteome of cumulus-oocyte complexes (COCs) from ewes. Extracted COC proteins were analyzed by LC-MS/MS. Differences in protein abundances (p < 0.05) and functional enrichments in immature versus in vitro-matured COCs were evaluated using bioinformatics tools. There were 2550 proteins identified in the COCs, with 89 and 87 proteins exclusive to immature and mature COCs, respectively. IVM caused downregulation of 84 and upregulation of 34 proteins. Major upregulated proteins in mature COCs were dopey_N domain-containing protein, structural maintenance of chromosomes protein, ubiquitin-like modifier-activating enzyme 2. Main downregulated proteins in mature COCs were immunoglobulin heavy constant mu, inter-alpha-trypsin inhibitor heavy chain 2, alpha-2-macroglobulin. Proteins exclusive to mature COCs and upregulated after IVM related to immune response, complement cascade, vesicle-mediated transport, cell cycle, and extracellular matrix organization. Proteins of immature COCs and downregulated after IVM were linked to metabolic processes, immune response, and complement cascade. KEGG pathways and miRNA-regulated genes attributed to downregulated and mature COC proteins related to complement and coagulation cascades, metabolism, humoral response, and B cell-mediated immunity. Thus, IVM influenced the ovine COC proteome. This knowledge supports the future development of efficient IVM protocols for Ovis aries.
Collapse
Affiliation(s)
- José Renato S Passos
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | - Denise D Guerreiro
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | - Kamila S Otávio
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | | | - Marcela Souza-Neves
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
| | - Federico Cuadro
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay
| | | | - Martina Crispo
- Unidad de Biotecnología en Animales de Laboratorio, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Fábio R Vasconcelos
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | - Maria Julia B Bezerra
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| | - Renato F Silva
- Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), Ceará State University, Fortaleza, Brazil
| | - Laritza F Lima
- Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), Ceará State University, Fortaleza, Brazil
| | - José Ricardo Figueiredo
- Laboratory of Manipulation of Oocyte and Preantral Follicles (LAMOFOPA), Ceará State University, Fortaleza, Brazil
| | | | - Alejo Menchaca
- Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo, Uruguay.,Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria, Montevideo, Uruguay
| | - Arlindo A Moura
- Laboratory of Animal Physiology, Department of Animal Science, Federal University of Ceará, Fortaleza, Brazil
| |
Collapse
|
10
|
Effects of EGF and melatonin on gene expression of cumulus cells and further in vitro embryo development in bovines. ZYGOTE 2022; 30:600-610. [DOI: 10.1017/s0967199421000940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Summary
Despite previous research demonstrating the benefits of including growth factors and antioxidants to maturation medium to support embryo production, to date the effect of epidermal growth factor (EGF) and melatonin (Mel) on oocyte competency has not been studied. This study supplemented in vitro maturation (IVM) medium with EGF (10 ng/ml) and Mel (50 ng/ml) alone, or in combination, and evaluated cumulus cell (CC) gene expression and the development and quality of parthenogenetic blastocysts. No differences in CC gene expression levels indicative of developmental potential were found among the treatment groups. Antioxidant gene CuZnSOD was significantly (P < 0.05) decreased in CCs from the Mel group. Moreover, blastocyst rates on day 7 were significantly increased in EGF or Mel (P < 0.05), but not EGF+Mel. Significant decrease (P < 0.05) in GPX1, CuZnSOD, SLC2A1 and HSPA1A (P = 0.07) mRNA levels was observed in blastocysts from the Mel group. OCT4 gene expression was significantly increased (P < 0.05) in EGF+Mel and confirmed using immunofluorescence. Our results indicate that, despite the lack of changes of competence-related genes in CCs, IVM medium supplemented with Mel improved the culture environment sufficiently, resulting in improved blastocysts. Moreover, EGF and Mel combined during maturation increased OCT4 gene and protein expression in blastocysts, indicating its potential for stem cells.
Collapse
|
11
|
Clark ZL, Karl KR, Ruebel ML, Latham KE, Ireland JJ. Excessive follicle-stimulating hormone during ovarian stimulation of cattle may induce premature luteinization of most ovulatory-size follicles†. Biol Reprod 2022; 106:968-978. [PMID: 35084014 PMCID: PMC9113431 DOI: 10.1093/biolre/ioac021] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/03/2021] [Accepted: 01/20/2022] [Indexed: 01/29/2023] Open
Abstract
High follicle-stimulating hormone (FSH) doses during ovarian stimulation are detrimental to ovulatory follicle function and decrease live birth rate in cattle and women. However, the mechanism whereby excessive FSH causes ovarian dysfunction is unknown. This study tested the hypothesis that excessive FSH during ovarian stimulation induces premature luteinization of ovulatory-size follicles. Small ovarian reserve heifers were injected twice daily for 4 days with 70 IU (N = 7 heifers) or 210 IU (N = 6 heifers) Folltropin-V [commercial FSH-enriched preparation of porcine pituitary glands with minor (<1%) luteinizing hormone (LH) contamination, cpFSH]. Ovulatory-size (≥10 mm) follicles were excised from ovaries after the last cpFSH injection and hormone concentrations in follicular fluid (FF) were determined using ELISA. Luteinization was monitored by assessing cumulus cell-oocyte complex (COC) morphology and measuring concentrations of estradiol (E), progesterone (P), and oxytocin (O) in FF. COCs were classified as having compact (cCOC) or expanded (eCOC) cumulus cell layers, and as estrogen-active (E:P in FF ≥1), estrogen-inactive (EI, E:P in FF ≤1 > 0.1), or extreme-estrogen-inactive (EEI, E:P in FF ≤0.1). A high proportion (72%) of ovulatory-size follicles in 210 IU, but not 70 IU, dose heifers displayed eCOCs. The high doses also produced higher proportions of EI or EEI follicles which had lower E:P ratio and/or E but higher P and/or O concentrations compared with the 70 IU dose heifers. In conclusion, excessive cpFSH doses during ovarian stimulation may induce premature luteinization of most ovulatory-size follicles in heifers with small ovarian reserves.
Collapse
Affiliation(s)
- Zaramasina L Clark
- Reproductive and Developmental Sciences Program, Department of Animal Science, Michigan State University, East Lansing, MI, USA
| | - Kaitlin R Karl
- Reproductive and Developmental Sciences Program, Department of Animal Science, Michigan State University, East Lansing, MI, USA
| | - Meghan L Ruebel
- Reproductive and Developmental Sciences Program, Department of Animal Science, Michigan State University, East Lansing, MI, USA
| | - Keith E Latham
- Reproductive and Developmental Sciences Program, Department of Animal Science, Michigan State University, East Lansing, MI, USA
| | - James J Ireland
- Correspondence: Molecular Reproductive Endocrinology Laboratory, Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA. Tel: +1517 432 1384; E-mail:
| |
Collapse
|
12
|
Relav L, Estienne A, Price CA. Dual-specificity phosphatase 6 (DUSP6) mRNA and protein abundance is regulated by fibroblast growth factor 2 in sheep granulosa cells and inhibits c-Jun N-terminal kinase (MAPK8) phosphorylation. Mol Cell Endocrinol 2021; 531:111297. [PMID: 33964319 DOI: 10.1016/j.mce.2021.111297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 11/20/2022]
Abstract
Growth factors regulate ovarian follicle development and they signal through intracellular pathways including mitogen-activated protein kinase (MAPK) phosphorylation, which is negatively regulated by a subfamily of 23 dual-specificity phosphatases (DUSP). Using sheep granulosa cells as a model, we detected mRNA encoding 16 DUSPs in vivo and in vitro. Stimulation of cells in vitro with FGF2 increased (p < 0.05) abundance of DUSP1, DUSP2, DUSP5 and DUSP6 mRNA, and abundance of DUSP1 and DUSP6 proteins (p < 0.05). In contrast, neither FGF8b nor FGF18 had any major effect on DUSP mRNA abundance. Inhibition of DUSP6 action with the inhibitor BCI significantly increased (p < 0.05) MAPK8 (JNK) phosphorylation but not phosphoMAPK14 (p38) or MAPK3/1 (ERK1/2) abundance. This study suggests that FGFs stimulate DUSP protein abundance, that DUSP6 regulates MAPK8 phosphorylation in granulosa cells, and DUSPs are involved in the differential MAPK signaling of individual FGF ligands.
Collapse
Affiliation(s)
- Lauriane Relav
- Centre de recherche en reproduction animale, Faculté de médecine vétérinaire, Université de Montréal, St-Hyacinthe, J2S 7C6, QC, Canada
| | - Anthony Estienne
- Centre de recherche en reproduction animale, Faculté de médecine vétérinaire, Université de Montréal, St-Hyacinthe, J2S 7C6, QC, Canada
| | - Christopher A Price
- Centre de recherche en reproduction animale, Faculté de médecine vétérinaire, Université de Montréal, St-Hyacinthe, J2S 7C6, QC, Canada.
| |
Collapse
|
13
|
Moorey SE, Monnig JM, Smith MF, Ortega MS, Green JA, Pohler KG, Bridges GA, Behura SK, Geary TW. Differential Transcript Profiles in Cumulus-Oocyte Complexes Originating from Pre-Ovulatory Follicles of Varied Physiological Maturity in Beef Cows. Genes (Basel) 2021; 12:genes12060893. [PMID: 34200628 PMCID: PMC8227736 DOI: 10.3390/genes12060893] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/27/2021] [Accepted: 05/27/2021] [Indexed: 12/13/2022] Open
Abstract
Small dominant follicle diameter at induced ovulation, but not at spontaneous ovulation, decreased pregnancy rate, fertilization rate, and day seven embryo quality in beef cows. We hypothesized that the physiological status of the follicle at GnRH-induced ovulation has a direct effect on the transcriptome of the Cumulus-Oocyte complex, thereby affecting oocyte competence and subsequent embryo development. The objective of this study was to determine if the transcriptome of oocytes and associated cumulus cells (CC) differed among small (≤11.7 mm) and large follicles (≥12.7 mm) exposed to a GnRH-induced gonadotropin surge and follicles (11.7–14.0 mm) exposed to an endogenous gonadotropin surge (spontaneous follicles). RNA sequencing data, from pools of four oocytes or their corresponding CC, revealed 69, 94, and 83 differentially expressed gene transcripts (DEG) among oocyte pools from small versus large, small versus spontaneous, and large versus spontaneous follicle classifications, respectively. An additional 128, 98, and 80 DEG were identified among small versus large, small versus spontaneous, and large versus spontaneous follicle CC pools, respectively. The biological pathway “oxidative phosphorylation” was significantly enriched with DEG from small versus spontaneous follicle oocyte pools (FDR < 0.01); whereas the glycolytic pathway was significantly enriched with DEG from CC pools obtained from large versus small follicles (FDR < 0.01). These findings collectively suggest that altered carbohydrate metabolism within the Cumulus-Oocyte complex likely contributes to the decreased competency of oocytes from small pre-ovulatory follicles exposed to an exogenous GnRH-induced gonadotropin surge.
Collapse
Affiliation(s)
- Sarah E. Moorey
- Department of Animal Science, University of Tennessee, Knoxville, TN 37996, USA
- Correspondence:
| | - Jenna M. Monnig
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; (J.M.M.); (M.F.S.); (M.S.O.); (J.A.G.); (S.K.B.)
| | - Michael F. Smith
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; (J.M.M.); (M.F.S.); (M.S.O.); (J.A.G.); (S.K.B.)
| | - M. Sofia Ortega
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; (J.M.M.); (M.F.S.); (M.S.O.); (J.A.G.); (S.K.B.)
| | - Jonathan A. Green
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; (J.M.M.); (M.F.S.); (M.S.O.); (J.A.G.); (S.K.B.)
| | - Ky G. Pohler
- Department of Animal Science, Texas A&M University, College Station, TX 77843, USA;
| | - G. Alan Bridges
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108, USA;
| | - Susanta K. Behura
- Division of Animal Sciences, University of Missouri, Columbia, MO 65211, USA; (J.M.M.); (M.F.S.); (M.S.O.); (J.A.G.); (S.K.B.)
| | - Thomas W. Geary
- USDA-ARS Fort Keogh Livestock and Range Research Lab, Miles City, MT 59301, USA;
| |
Collapse
|
14
|
Kordowitzki P, Sokołowska G, Wasielak-Politowska M, Skowronska A, Skowronski MT. Pannexins and Connexins: Their Relevance for Oocyte Developmental Competence. Int J Mol Sci 2021; 22:ijms22115918. [PMID: 34072911 PMCID: PMC8199496 DOI: 10.3390/ijms22115918] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/23/2021] [Accepted: 05/28/2021] [Indexed: 12/29/2022] Open
Abstract
The oocyte is the major determinant of embryo developmental competence in all mammalian species. Although fundamental advances have been generated in the field of reproductive medicine and assisted reproductive technologies in the past three decades, researchers and clinicians are still trying to elucidate molecular factors and pathways, which could be pivotal for the oocyte’s developmental competence. The cell-to-cell and cell-to-matrix communications are crucial not only for oocytes but also for multicellular organisms in general. This latter mentioned communication is among others possibly due to the Connexin and Pannexin families of large-pore forming channels. Pannexins belong to a protein group of ATP-release channels, therefore of high importance for the oocyte due to its requirements of high energy supply. An increasing body of studies on Pannexins provided evidence that these channels not only play a role during physiological processes of an oocyte but also during pathological circumstances which could lead to the development of diseases or infertility. Connexins are proteins that form membrane channels and gap-junctions, and more precisely, these proteins enable the exchange of some ions and molecules, and therefore they do play a fundamental role in the communication between the oocyte and accompanying cells. Herein, the role of Pannexins and Connexins for the processes of oogenesis, folliculogenesis, oocyte maturation and fertilization will be discussed and, at the end of this review, Pannexin and Connexin related pathologies and their impact on the developmental competence of oocytes will be provided.
Collapse
Affiliation(s)
- Paweł Kordowitzki
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Bydgoska Street 7, 10-243 Olsztyn, Poland;
- Department of Basic and Preclinical Sciences, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Gagarina Street 7, 87-100 Torun, Poland
| | - Gabriela Sokołowska
- Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, Jana Kilińskiego Street 1, 15-089 Białystok, Poland;
| | - Marta Wasielak-Politowska
- Center of Gynecology, Endocrinology and Reproductive Medicine—Artemida, Jagiellońska Street 78, 10-357 Olsztyn, Poland;
| | - Agnieszka Skowronska
- Department of Human Physiology and Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury, Warszawska Street 30, 10-357 Olsztyn, Poland;
| | - Mariusz T. Skowronski
- Department of Basic and Preclinical Sciences, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Gagarina Street 7, 87-100 Torun, Poland
- Correspondence: ; Tel.: +48-566-112-231
| |
Collapse
|
15
|
Poulsen LC, Bøtkjær JA, Østrup O, Petersen KB, Andersen CY, Grøndahl ML, Englund ALM. Two waves of transcriptomic changes in periovulatory human granulosa cells. Hum Reprod 2021; 35:1230-1245. [PMID: 32378719 DOI: 10.1093/humrep/deaa043] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 02/05/2020] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION How does the human granulosa cell (GC) transcriptome change during ovulation? SUMMARY ANSWER Two transcriptional peaks were observed at 12 h and at 36 h after induction of ovulation, both dominated by genes and pathways known from the inflammatory system. WHAT IS KNOWN ALREADY The crosstalk between GCs and the oocyte, which is essential for ovulation and oocyte maturation, can be assessed through transcriptomic profiling of GCs. Detailed transcriptional changes during ovulation have not previously been assessed in humans. STUDY DESIGN, SIZE, DURATION This prospective cohort study comprised 50 women undergoing fertility treatment in a standard antagonist protocol at a university hospital-affiliated fertility clinic in 2016-2018. PARTICIPANTS/MATERIALS, SETTING, METHODS From each woman, one sample of GCs was collected by transvaginal ultrasound-guided follicle aspiration either before or 12 h, 17 h or 32 h after ovulation induction (OI). A second sample was collected at oocyte retrieval, 36 h after OI. Total RNA was isolated from GCs and analyzed by microarray. Gene expression differences between the five time points were assessed by ANOVA with a random factor accounting for the pairing of samples, and seven clusters of protein-coding genes representing distinct expression profiles were identified. These were used as input for subsequent bioinformatic analyses to identify enriched pathways and suggest upstream regulators. Subsets of genes were assessed to explore specific ovulatory functions. MAIN RESULTS AND THE ROLE OF CHANCE We identified 13 345 differentially expressed transcripts across the five time points (false discovery rate, <0.01) of which 58% were protein-coding genes. Two clusters of mainly downregulated genes represented cell cycle pathways and DNA repair. Upregulated genes showed one peak at 12 h that resembled the initiation of an inflammatory response, and one peak at 36 h that resembled the effector functions of inflammation such as vasodilation, angiogenesis, coagulation, chemotaxis and tissue remodelling. Genes involved in cell-matrix interactions as a part of cytoskeletal rearrangement and cell motility were also upregulated at 36 h. Predicted activated upstream regulators of ovulation included FSH, LH, transforming growth factor B1, tumour necrosis factor, nuclear factor kappa-light-chain-enhancer of activated B cells, coagulation factor 2, fibroblast growth factor 2, interleukin 1 and cortisol, among others. The results confirmed early regulation of several previously described factors in a cascade inducing meiotic resumption and suggested new factors involved in cumulus expansion and follicle rupture through co-regulation with previously described factors. LARGE SCALE DATA The microarray data were deposited to the Gene Expression Omnibus (www.ncbi.nlm.nih.gov/gds/, accession number: GSE133868). LIMITATIONS, REASONS FOR CAUTION The study included women undergoing ovarian stimulation and the findings may therefore differ from a natural cycle. However, the results confirm significant regulation of many well-established ovulatory genes from a series of previous studies such as amphiregulin, epiregulin, tumour necrosis factor alfa induced protein 6, tissue inhibitor of metallopeptidases 1 and plasminogen activator inhibitor 1, which support the relevance of the results. WIDER IMPLICATIONS OF THE FINDINGS The study increases our understanding of human ovarian function during ovulation, and the publicly available dataset is a valuable resource for future investigations. Suggested upstream regulators and highly differentially expressed genes may be potential pharmaceutical targets in fertility treatment and gynaecology. STUDY FUNDING/COMPETING INTEREST(S) The study was funded by EU Interreg ÔKS V through ReproUnion (www.reprounion.eu) and by a grant from the Region Zealand Research Foundation. None of the authors have any conflicts of interest to declare.
Collapse
Affiliation(s)
- L C Poulsen
- Fertility Clinic, Zealand University Hospital, Lykkebækvej 14, 4600 Køge, Denmark
| | - J A Bøtkjær
- Laboratory of Reproductive Biology, University Hospital of Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark
| | - O Østrup
- Center for Genomic Medicine, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark
| | - K B Petersen
- Fertility Clinic, Zealand University Hospital, Lykkebækvej 14, 4600 Køge, Denmark
| | - C Yding Andersen
- Laboratory of Reproductive Biology, University Hospital of Copenhagen, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen Ø, Denmark
| | - M L Grøndahl
- Fertility Clinic, University Hospital of Copenhagen, Herlev and Gentofte Hospital, Herlev Ringvej 75, 2730 Herlev, Denmark
| | - A L M Englund
- Fertility Clinic, Zealand University Hospital, Lykkebækvej 14, 4600 Køge, Denmark
| |
Collapse
|
16
|
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.
Collapse
|
17
|
Rowinski JR, Rispoli LA, Payton RR, Schneider LG, Schrick FN, McLean KJ, Edwards JL. Impact of an acute heat shock during in vitro maturation on interleukin 6 and its associated receptor component transcripts in bovine cumulus-oocyte complexes. Anim Reprod 2021; 17:e20200221. [PMID: 33936291 PMCID: PMC8081495 DOI: 10.1590/1984-3143-ar2020-0221] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
An acute heat stress event after the LH surge increased interleukin 6 (IL6) levels in the follicular fluid of the ovulatory follicle in hyperthermic cows. To examine direct consequences of a physiologically-relevant elevated temperature (41.0°C) on the cumulus-oocyte complex (COC), IL6 transcript abundance and related receptor components were evaluated throughout in vitro maturation. Heat-induced increases in IL6 were first noted at 4 hours of in vitro maturation (hIVM); peak levels occurred at 4.67 versus 6.44 hIVM for 41.0 and 38.5°C COCs, respectively (SEM = 0.23; P < 0.001). Peak IL6ST levels occurred at 6.95 versus 8.29 hIVM for 41.0 and 38.5°C, respectively (SEM = 0.23; P < 0.01). Transcript for LIF differed over time (P < 0.0001) but was not affected by 41.0°C exposure. Blastocyst development after performing IVF was not affected by 41.0°C exposure for 4 or 6 h. When limiting analysis to when IL6 was temporally produced, progesterone levels were only impacted by time and temperature (no interaction). Heat-induced shift in the temporal production of IL6 and IL6ST along with its impact on progesterone likely cooperate in heat-induced hastening of meiotic progression described by others.
Collapse
Affiliation(s)
- Julia R Rowinski
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN, USA
| | - Louisa A Rispoli
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN, USA.,Cincinnati Zoo & Botanical Garden, Cincinnati, OH, USA
| | - Rebecca R Payton
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN, USA
| | - Liesel G Schneider
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN, USA
| | - F Neal Schrick
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN, USA
| | - Kyle J McLean
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN, USA
| | - J Lannett Edwards
- Department of Animal Science, The University of Tennessee, Institute of Agriculture, AgResearch, Knoxville, TN, USA
| |
Collapse
|
18
|
Bertevello PS, Teixeira-Gomes AP, Labas V, Cordeiro L, Blache MC, Papillier P, Singina G, Uzbekov R, Maillard V, Uzbekova S. MALDI-TOF Mass Spectrometry Revealed Significant Lipid Variations in Follicular Fluid and Somatic Follicular Cells but Not in Enclosed Oocytes between the Large Dominant and Small Subordinate Follicles in Bovine Ovary. Int J Mol Sci 2020; 21:E6661. [PMID: 32932995 PMCID: PMC7554725 DOI: 10.3390/ijms21186661] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 12/13/2022] Open
Abstract
Lipid metabolism in ovarian follicular cells supports the preparation of an enclosed oocyte to ovulation. We aimed to compare lipid composition of a dominant large follicle (LF) and subordinated small follicles (SFs) within the same ovaries. Mass spectrometry imaging displayed the differences in the distribution of several lipid features between the different follicles. Comparison of lipid fingerprints between LF and SF by Matrix Assisted Laser Desorption/Ionisation Time-Of-Flight (MALDI-TOF) mass spectrometry revealed that in the oocytes, only 8 out of 468 detected lipids (1.7%) significantly changed their abundance (p < 0.05, fold change > 2). In contrast, follicular fluid (FF), granulosa, theca and cumulus cells demonstrated 55.5%, 14.9%, 5.3% and 9.8% of significantly varied features between LF and SF, respectively. In total, 25.2% of differential lipids were identified and indicated potential changes in membrane and signaling lipids. Tremendous changes in FF lipid composition were likely due to the stage specific secretions from somatic follicular cells that was in line with the differences observed from FF extracellular vesicles and gene expression of candidate genes in granulosa and theca cells between LF and SF. In addition, lipid storage in granulosa and theca cells varied in relation to follicular size and atresia. Differences in follicular cells lipid profiles between LF and SF may probably reflect follicle atresia degree and/or accumulation of appropriate lipids for post-ovulation processes as formation of corpus luteum. In contrast, the enclosed oocyte seems to be protected during final follicular growth, likely due in part to significant lipid transformations in surrounding cumulus cells. Therefore, the enclosed oocyte could likely keep lipid building blocks and energy resources to support further maturation and early embryo development.
Collapse
Affiliation(s)
- Priscila Silvana Bertevello
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (P.S.B.); (V.L.); (L.C.); (M.-C.B.); (P.P.); (V.M.)
| | - Ana-Paula Teixeira-Gomes
- INRAE, Université de Tours, ISP, 37380 Nouzilly, France;
- CHU de Tours, INRAE, Université de Tours, PRC, CIRE, 37380 Nouzilly, France
| | - Valerie Labas
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (P.S.B.); (V.L.); (L.C.); (M.-C.B.); (P.P.); (V.M.)
- CHU de Tours, INRAE, Université de Tours, PRC, CIRE, 37380 Nouzilly, France
| | - Luiz Cordeiro
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (P.S.B.); (V.L.); (L.C.); (M.-C.B.); (P.P.); (V.M.)
| | - Marie-Claire Blache
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (P.S.B.); (V.L.); (L.C.); (M.-C.B.); (P.P.); (V.M.)
| | - Pascal Papillier
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (P.S.B.); (V.L.); (L.C.); (M.-C.B.); (P.P.); (V.M.)
| | - Galina Singina
- L.K. Ernst Institute of Animal Husbandry, Dubrovitzy 60, Podolsk, 142132 Moscow, Russia;
| | - Rustem Uzbekov
- Laboratoire Biologie Cellulaire et Microscopie Électronique, Faculté de Médecine, Université de Tours, 10, bd Tonnellé, 37032 Tours, France;
| | - Virginie Maillard
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (P.S.B.); (V.L.); (L.C.); (M.-C.B.); (P.P.); (V.M.)
- Laboratoire Biologie Cellulaire et Microscopie Électronique, Faculté de Médecine, Université de Tours, 10, bd Tonnellé, 37032 Tours, France;
| | - Svetlana Uzbekova
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380 Nouzilly, France; (P.S.B.); (V.L.); (L.C.); (M.-C.B.); (P.P.); (V.M.)
- CHU de Tours, INRAE, Université de Tours, PRC, CIRE, 37380 Nouzilly, France
| |
Collapse
|
19
|
Looking Inside the World of Granulosa Cells: The Noxious Effects of Cigarette Smoke. Biomedicines 2020; 8:biomedicines8090309. [PMID: 32867029 PMCID: PMC7555008 DOI: 10.3390/biomedicines8090309] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/21/2020] [Accepted: 08/25/2020] [Indexed: 02/07/2023] Open
Abstract
The detrimental implications of tobacco smoke on systemic health have been widely established during the past few decades. Nonetheless, increasing evidence has begun to shed more light on the serious impact that smoke exposure could also have on mammal reproductive health in terms of overall ovarian dysfunction and gestation. A variety of these complications seem to be causally related to specific chemical substances contained in cigarette smoke and their possible effects on ovarian tissues and cells, such as granulosa cells. Granulosa cells represent the functional unit of the ovary and are able to establish a bidirectional cross-talk relationship with the oocyte during folliculogenesis, which makes them vital for its correct growth and development. Based on these premises, the current review focuses on the presence of related smoke-induced damages in granulosa cells. Data have been grouped according to the studied tobacco constituents and the molecular pathways involved, in order to synthesize their impact on granulosa cells and fertility. Attention is further brought to the correlation between electronic cigarettes and female reproduction, although there have been no investigations so far regarding e-cigarette-related granulosa cell exposure. We summarize how tobacco constituents are able to cause alterations in the "life" of granulosa cells, ranging from luteal steroidogenesis and follicular loss to granulosa cell apoptosis and activation of the autophagic machinery. Further studies have been conducted to elucidate the relationship between lifestyle and fertility as to reduce the morbidity connected with infertility.
Collapse
|
20
|
Kowalczyk-Zieba I, Boruszewska D, Suwik K, Staszkiewicz-Chodor J, Jaworska J, Woclawek-Potocka I. Iloprost affects in vitro maturation and developmental competence of bovine oocytes. Theriogenology 2020; 157:286-296. [PMID: 32823024 DOI: 10.1016/j.theriogenology.2020.07.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 07/28/2020] [Accepted: 07/30/2020] [Indexed: 11/18/2022]
Abstract
Prostacyclin (PGI2) is synthesised in oviductal fluid and enhance the embryo development during the preimplantation period. The objective of the present study was to determine the effect of an analogue of prostacyclin (iloprost) on the in vitro maturation (IVM) and the developmental competence of bovine oocytes. Cumulus oocyte complexes (COCs) were cultured in maturation medium with iloprost (0.5 μM) for 24 h. We found that iloprost assisted maturation rates and cumulus cell expansion of bovine oocytes, and it increased the mRNA expression of genes related to cumulus expansion: ADAM17, AREG, and TNFAIP6 and cathepsin genes (CTSK and CTSS). Moreover, iloprost reduced the occurrence of apoptosis in COCs and promoted an antiapoptotic balance in the transcription of genes involved in apoptosis (BAX and BCL2). COCs treatment with iloprost during IVM also reduced intracellular reactive oxygen species (ROS) levels, while glutathione (GSH) levels and the mRNA expression of antioxidant genes CAT and GPx4 were markedly increased. We also showed that an analogue of PGI2 influenced the mitochondrial status via distribution rates of mitochondria and mitochondrial membrane potential in oocytes. Although, iloprost-enhanced maturation had no direct effect on number of embryos cleaved, it increased blastocyst rates of bovine embryos as well as proportion of expanded blastocysts. These results indicate that the supplementation of maturation medium with iloprost is beneficial for the maturation efficiency and developmental competence of bovine oocytes.
Collapse
Affiliation(s)
- Ilona Kowalczyk-Zieba
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748, Olsztyn, Poland.
| | - Dorota Boruszewska
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748, Olsztyn, Poland
| | - Katarzyna Suwik
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748, Olsztyn, Poland
| | - Joanna Staszkiewicz-Chodor
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748, Olsztyn, Poland
| | - Joanna Jaworska
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748, Olsztyn, Poland
| | - Izabela Woclawek-Potocka
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, 10-748, Olsztyn, Poland
| |
Collapse
|
21
|
Walter J, Monthoux C, Fortes C, Grossmann J, Roschitzki B, Meili T, Riond B, Hofmann-Lehmann R, Naegeli H, Bleul U. The bovine cumulus proteome is influenced by maturation condition and maturational competence of the oocyte. Sci Rep 2020; 10:9880. [PMID: 32555221 PMCID: PMC7303117 DOI: 10.1038/s41598-020-66822-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 05/26/2020] [Indexed: 02/07/2023] Open
Abstract
In vitro maturation (IVM) of oocytes has still a negative impact on the developmental competence of oocytes. Therefore, this study analysed the cumulus proteome of individual cumulus-oocyte complexes (COCs) with and without maturational competence, matured under in vivo or in vitro conditions (n = 5 per group). A novel, ultrasensitive mass spectrometry (MS) based protein profiling approach, using label-free quantification, was applied. The detected cumulus proteome included 2226 quantifiable proteins and was highly influenced by the maturation condition (479 differentially expressed proteins) as well as maturational competence of the corresponding oocyte (424 differentially expressed proteins). Enrichment analysis showed an overrepresentation of the complement and coagulation cascades (CCC), ECM-receptor interaction and steroid biosynthesis in cumulus of COCs that matured successfully under in vivo conditions. Verification of the origin of CCC proteins was achieved through detection of C3 secretion into the maturation medium, with significantly increasing concentrations from 12 (48.4 ng/ml) to 24 hours (68 ng/ml: p < 0.001). In relation, concentrations in follicular fluid, reflecting the in vivo situation, were >100x higher. In summary, this study identified important pathways that are impaired in IVM cumulus, as well as potential markers of the maturational competence of oocytes.
Collapse
Affiliation(s)
- J Walter
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.
| | - C Monthoux
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - C Fortes
- Functional Genomics Centre Zurich, University and ETH Zurich, Zurich, Switzerland
| | - J Grossmann
- Functional Genomics Centre Zurich, University and ETH Zurich, Zurich, Switzerland
- Swiss Institute of Bioinformatics, (SIB), Zurich, Switzerland
| | - B Roschitzki
- Functional Genomics Centre Zurich, University and ETH Zurich, Zurich, Switzerland
| | - T Meili
- Clinical Laboratory, Department of Clinical Diagnostics and Services, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
- Center for Clinical Studies, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - B Riond
- Clinical Laboratory, Department of Clinical Diagnostics and Services, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - R Hofmann-Lehmann
- Clinical Laboratory, Department of Clinical Diagnostics and Services, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
- Center for Clinical Studies, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - H Naegeli
- Institute of Pharmacology and Toxicology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - U Bleul
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| |
Collapse
|
22
|
Ramirez G, Palomino J, Aspee K, De los Reyes M. GDF-9 and BMP-15 mRNA Levels in Canine Cumulus Cells Related to Cumulus Expansion and the Maturation Process. Animals (Basel) 2020; 10:ani10030462. [PMID: 32164341 PMCID: PMC7143337 DOI: 10.3390/ani10030462] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/04/2020] [Accepted: 03/06/2020] [Indexed: 12/28/2022] Open
Abstract
Simple Summary The knowledge of physiological events associated with canine reproduction involving oocyte developmental potential is essential to increase the success of reproductive biotechnologies in this species. In mammals, the oocytes are closely surrounded by a group of cells known as the cumulus cells. Although it is not well-known how these cells interact with the oocyte to promote maturation, they may provide important answers concerning oocyte development. The competence to undergo expansion is a unique characteristic of cumulus cells which is critical for normal oocyte maturation, however, the complete expansion of these cells takes longer in canines, which has been associated with the lengthy maturation process of the oocyte. Growth Differentiation Factor 9 (GDF-9) and Bone Morphogenetic Protein 15 (BMP-15) are described as relevant players in the oocyte–cumulus cells’ regulatory mechanisms. Cumulus cells express many important genes from a very early stage, therefore, we proposed to study the gene expression of GDF-9 and BMP-15 in canine cumulus cells in relation to cumulus expansion and the maturation process. We demonstrate, for the first time, that these genes are differentially expressed in canine cumulus cells throughout the estrous cycle and that this expression is related to cumulus expansion and maturity status, suggesting specific regulation. Abstract The competence to undergo expansion is a characteristic of cumulus cells (CCs). The aim was to investigate the expression of GDF-9 and BMP-15 mRNA in canine cumulus cells in relation to cumulus expansion and meiotic development over the estrous cycle. CCs were recovered from nonmatured and in vitro-matured (IVM) dog cumulus oocyte complexes (COCs), which were obtained from antral follicles at different phases of the estrous cycle. Quantitative real-time polymerase chain reaction (q-PCR) was used to evaluate the relative abundance of GDF-9 and BMP-15 transcripts from the CCs with or without signs of expansion. The results were evaluated by ANOVA and logistic regression. The maturity of the oocyte and the expansion process affected the mRNA levels in CCs. There were differences (p < 0.05) in GDF-9 and BMP-15 gene expression in CCs isolated from nonmatured COCs when comparing the reproductive phases. Lower mRNA levels (p < 0.05) were observed in anestrus and proestrus in comparison to those in estrus and diestrus. In contrast, when comparing GDF-9 mRNA levels in IVM COCs, no differences were found among the phases of the estrous cycle in expanded and nonexpanded CCs (p < 0.05). However, the highest (p < 0.05) BMP-15 gene expression in CCs that did not undergo expansion was exhibited in anestrus and the lowest (p < 0.05) expression was observed in estrus in expanded CCs. Although the stage of the estrous cycle did not affect the second metaphase (MII )rates, the expanded CCs obtained at estrus coexisted with higher percentages of MII (p < 0.05). In conclusion, the differential expression patterns of GDF-9 and BMP-15 mRNA transcripts might be related to cumulus expansion and maturation processes, suggesting specific regulation and temporal changes in their expression.
Collapse
|
23
|
de Melo TP, Salinas Fortes MR, Hayes B, de Albuquerque LG, Carvalheiro R. Across-breed validation study confirms and identifies new loci associated with sexual precocity in Brahman and Nellore cattle. J Anim Breed Genet 2019; 137:139-154. [PMID: 31414510 DOI: 10.1111/jbg.12429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 07/05/2019] [Accepted: 07/15/2019] [Indexed: 11/28/2022]
Abstract
The aim of this study was to identify candidate regions associated with sexual precocity in Bos indicus. Nellore and Brahman were set as validation and discovery populations, respectively. SNP selected in Brahman to validate in Nellore were from gene regions affecting reproductive traits (G1) and significant SNP (p ≤ 10-3 ) from a meta-analysis (G2). In the validation population, early pregnancy (EP) and scrotal circumference (SC) were evaluated. To perform GWAS in validation population, we used regression and Bayes C. SNP with p ≤ 10-3 in regression and Bayes factor ≥3 in Bayes C were deemed significant. Significant SNP (for EP or SC) or SNP in their ±250 Kb vicinity region, which were in at least one discovery set (G1 or G2), were considered validated. SNP identified in both G1 and G2 were considered candidate. For EP, 145 SNP were validated in G1 and 41 in G2, and for SC, these numbers were 14 and 2. For EP, 21 candidate SNP were detected (G1 and G2). For SC, no candidate SNP were identified. Validated SNP and their vicinity region were located close to quantitative trait loci or genes related to reproductive traits and were enriched in gene ontology terms related to reproductive success. These are therefore strong candidate regions for sexual precocity in Nellore and Brahman.
Collapse
Affiliation(s)
- Thaise Pinto de Melo
- Department of Animal Science, School of Agricultural and Veterinarian Sciences, FCAV/ UNESP - Sao Paulo State University, Jaboticabal, Sao Paulo, Brazil
| | - Marina Rufino Salinas Fortes
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Qld, Australia.,Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, Qld, Australia
| | - Ben Hayes
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, Qld, Australia
| | - Lucia Galvão de 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
| |
Collapse
|
24
|
Franchi FF, Satrapa RA, Fontes PK, Santos PH, Razza EM, Emanuelli IP, Ereno RL, Mareco EA, Nogueira MFG, Barros CM, de Souza Castilho AC. Equine chorionic gonadotropin drives the transcriptional profile of immature cumulus-oocyte complexes and in vitro-produced blastocysts of superstimulated Nelore cows. Mol Reprod Dev 2019; 86:1639-1651. [PMID: 31389116 DOI: 10.1002/mrd.23251] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 07/13/2019] [Indexed: 12/30/2022]
Abstract
Studies have shown that the use of equine chorionic gonadotropin (eCG), which binds both follicle stimulating hormone (FSH) and luteinizing hormone (LH) receptors, could modify the female reproductive tract. We, thus, aimed to quantify the messenger RNA (mRNA) abundance of genes related to cumulus-oocyte complexes (COCs) and embryo quality in Nelore cows (Bos taurus indicus) submitted to ovarian superstimulation using only FSH (FSH group; n = 10) or replacement of the last two doses of FSH by eCG (FSH/eCG group; n = 10). All animals were slaughtered and the ovarian antral follicles from both groups (10-14 mm in diameter) were aspirated for cumulus, oocyte and in vitro embryo production gene expression analysis. The relative mRNA abundance of 96 genes related to COCs development and embryo quality was measured by RT-qPCR. We found that oocytes are more affected by eCG use and that 35 genes involved in lipid metabolism, oxidative stress, transcriptional control, and cellular development were upregulated in the FSH/eCG group. In blastocysts, lipid metabolism seems to be the main pathway regulated by eCG use. We suggest that these multiple effects could be due to the ability of eCG to bind LHR and FSHR, which could activate multiple signal transduction pathways in the superstimulated ovary, further impacting the transcriptional profile of COCs and blastocysts.
Collapse
Affiliation(s)
- Fernanda Fagali Franchi
- Departamento de Farmacologia, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Rafael Augusto Satrapa
- Departamento de Farmacologia, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Patrícia Kubo Fontes
- Departamento de Farmacologia, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Priscila Helena Santos
- Departamento de Farmacologia, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Eduardo Montanari Razza
- Departamento de Farmacologia, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Isabele Picada Emanuelli
- Departamento de Farmacologia, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | - Ronaldo Luiz Ereno
- Departamento de Farmacologia, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | | | | | - Ciro Moraes Barros
- Departamento de Farmacologia, Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil
| | | |
Collapse
|
25
|
Xiong XR, Lan DL, Li J, Yin S, Xiong Y, Zi XD. Identification of differential abundances of mRNA transcript in cumulus cells and CCND1 associated with yak oocyte developmental competence. Anim Reprod Sci 2019; 208:106135. [PMID: 31405458 DOI: 10.1016/j.anireprosci.2019.106135] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/24/2019] [Accepted: 07/22/2019] [Indexed: 01/11/2023]
Abstract
The development of an accurate and noninvasive preselection process for competent oocytes is essential to achieve a highly efficient in vitro production (IVP) of embryos. Cumulus cells (CCs) have important functions in oocyte growth, development, maturation, and fertilization. It, therefore, is important to know if the quality of oocytes can be ascertained by assessment of gene expression of the surrounding CCs or not. The aim of this study was to identify differentially expressed genes in yak CCs from oocytes with varying developmental competences as possible biomarkers for distinguishing oocyte competence. The isolated CCs were pooled into immature and mature groups in accordance with the maturation outcome of oocytes. A total of 9516 genes were differentially expressed in the two CC categories (P < 0.05). With a minimum change of 2.5-fold, 45 up-regulated and 79 down-regulated genes were observed in CCs belonging to the mature group compared with those in the immature group (P < 0.01). These genes were primarily enriched for the cell cycle, meiosis, cell signaling, metabolism, and apoptosis. The selected candidate genes (CCND1, BMP15, GDF9, H19, KLF4, GPC1, SYCP3, and CTSB) were validated using quantitative real-time polymerase chain reaction (RT-qPCR) and there were expression patterns similar to those detected with transcriptome analysis. The CCs from fertilized oocytes arrested at the 2-cell (2-cell group), or 8-cell (8-cell group) stages or that developed into blastocysts (the blastocyst group) had a 1.5-, 1.8-, and 2.3-fold increase, respectively, in mRNA relative abundance of CCND1 compared with CCs from unfertilized oocytes (P < 0.05). The results with the RT-qPCR analysis confirmed that the relative abundance of CCND1 mRNA in CCs was associated with oocyte developmental competence. In conclusion, RNA-Seq is useful in extracting transcriptomes and selecting markers associated with oocyte developmental competence. Furthermore, the expression of the CCND1 gene in yak CCs can be used to preselect oocytes for IVP efficiency.
Collapse
Affiliation(s)
- X R Xiong
- College of Life Science and Technology, Southwest Minzu University, Chengdu, Sichuan, 610041, China
| | - D L Lan
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Ministry of Education, Chengdu, Sichuan, 610041, China
| | - J Li
- College of Life Science and Technology, Southwest Minzu University, Chengdu, Sichuan, 610041, China.
| | - S Yin
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Ministry of Education, Chengdu, Sichuan, 610041, China
| | - Y Xiong
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Ministry of Education, Chengdu, Sichuan, 610041, China
| | - X D Zi
- College of Life Science and Technology, Southwest Minzu University, Chengdu, Sichuan, 610041, China
| |
Collapse
|
26
|
Obuchi T, Osada M, Ozawa T, Nakagawa H, Hayashi M, Akiyama K, Sakagami N, Miura R, Geshi M, Ushijima H. Comparative evaluation of the cost and efficiency of four types of sexing methods for the production of dairy female calves. J Reprod Dev 2019; 65:345-352. [PMID: 31178552 PMCID: PMC6708860 DOI: 10.1262/jrd.2019-028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
This study was conducted to evaluate and compare the economic benefits of different embryo sexing methods, based on the cost per female dairy calf produced. Female calves were produced from
four kinds of female embryos: (1) those collected from superstimulated donors at 7–8 days after artificial insemination (AI) with X-sorted semen; (2) those sex-determined by loop-mediated
isothermal amplification assay of a biopsy sample of embryos collected from superstimulated donors after AI with conventional unsorted semen; (3) those obtained by
invitro embryo production (IVEP), using X-sorted semen and in vitro-matured oocytes collected from donors by ovum pick-up (OPU); and (4)
those obtained by IVEP, using X-sorted semen and oocytes collected by OPU after dominant follicle ablation and follicle growth stimulation of the donors. The respective productivities of
female calves per technical service and the total production cost per female calf of each sexing method were compared. The production cost per female calf (66,537 JPY), as calculated from
the number of female calves per service (1.30), pregnancy rate of transfer (42.9%), rate of female calves obtained (92.9%), and total cost of the method (56,643 JPY plus embryo transfer
fee), was less for IVEP with X-sorted semen and follicular growth-stimulated (FGS) oocytes than for the other groups (P < 0.05). The results demonstrate that embryo production with
X-sorted semen and FGS oocytes provides a more efficient method for producing female calves than the other embryo sexing methods.
Collapse
Affiliation(s)
- Tomoko Obuchi
- Department of Applied Life Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan.,Present: Division of Animal Reproduction, Maebashi Institute of Animal Science, Livestock Improvement Association of Japan (LIAJ), Gunma 371-0121, Japan
| | - Masahiro Osada
- Department of Applied Life Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Takeyuki Ozawa
- Department of Applied Life Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Hiroshi Nakagawa
- Niigata Agricultural Research Institute, Niigata 955-0143, Japan
| | - Michiko Hayashi
- Ishikawa Livestock Research Center, Ishikawa 929-1325, Japan
| | - Kiyoshi Akiyama
- Kanagawa Prefectural Livestock Industry Technology Center, Kanagawa 243-0417, Japan
| | - Nobutada Sakagami
- Kanagawa Prefectural Livestock Industry Technology Center, Kanagawa 243-0417, Japan
| | - Ryotaro Miura
- Department of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| | - Masaya Geshi
- Animal Breeding and Reproduction Research Division, NARO Institute of Livestock and Grassland Science, Ibaraki 305-0901, Japan
| | - Hitoshi Ushijima
- Department of Applied Life Science, Nippon Veterinary and Life Science University, Tokyo 180-8602, Japan
| |
Collapse
|
27
|
Barros RG, Lima PF, Soares ACS, Sanches L, Price CA, Buratini J. Fibroblast growth factor 2 regulates cumulus differentiation under the control of the oocyte. J Assist Reprod Genet 2019; 36:905-913. [PMID: 30887159 DOI: 10.1007/s10815-019-01436-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 03/07/2019] [Indexed: 12/30/2022] Open
Abstract
PURPOSE We first assessed regulation of FGF2 expression in cumulus cells by FSH and oocyte-secreted factors during in vitro maturation (IVM). Then, we tested the hypothesis that FGF2 regulates meiotic progression, cumulus expansion, and apoptosis in cumulus-oocyte complexes (COC) undergoing IVM. METHODS In vitro maturation of bovine COC was utilized as a model to assess regulation of FGF2 expression by FSH and oocyte-secreted factors (via microsurgical removal of the oocyte), as well as effects of graded doses of FGF2 on meiotic progression, degree of cumulus expansion, dissociation of cumulus cells, and cumulus cells apoptosis. Expression of genes regulating functional endpoints altered by FGF2 treatment was assessed in cumulus cells by real-time PCR. Cultures were replicated 4-5 times and effects of treatments were tested by ANOVA. RESULTS FGF2 mRNA expression was increased by FSH and oocyte-secreted factors during IVM. Addition of FGF2 to the IVM medium advanced meiosis resumption, decreased the ease with which cumulus cells were dissociated, and inhibited cumulus cells apoptosis. Decreased cumulus dissociation was accompanied by decreased expression of TNFAIP6. CONCLUSIONS This is the first study showing that FGF2 expression is regulated by the oocyte in cumulus cells. Moreover, we report novel effects of FGF2 on cumulus cell survival and extracellular matrix (ECM) quality during IVM that may favor acquisition of developmental competence and suggest physiological roles during the final steps of COC differentiation.
Collapse
Affiliation(s)
- Rodrigo G Barros
- Departamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista, Rubião Junior, Botucatu, São Paulo, 18618-970, Brazil.
| | - Paula F Lima
- Departamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista, Rubião Junior, Botucatu, São Paulo, 18618-970, Brazil
| | - Ana Caroline S Soares
- Departamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista, Rubião Junior, Botucatu, São Paulo, 18618-970, Brazil
| | - Lorena Sanches
- Departamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista, Rubião Junior, Botucatu, São Paulo, 18618-970, Brazil
| | - Christopher A Price
- Centre de Recherche en Reproduction et Fertilité, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, Québec, J2S 7C6, Canada
| | - José Buratini
- Departamento de Fisiologia, Instituto de Biociências, Universidade Estadual Paulista, Rubião Junior, Botucatu, São Paulo, 18618-970, Brazil
| |
Collapse
|
28
|
Yin L, Wang W, Wei H, Xi F, Chu G, Yang G. Localization and expression of CTRP6 in ovary and its regulation by FSH in porcine granulosa cells. Theriogenology 2019; 127:56-65. [DOI: 10.1016/j.theriogenology.2019.01.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 01/08/2019] [Accepted: 01/11/2019] [Indexed: 02/01/2023]
|
29
|
Lipid Identification and Transcriptional Analysis of Controlling Enzymes in Bovine Ovarian Follicle. Int J Mol Sci 2018; 19:ijms19103261. [PMID: 30347829 PMCID: PMC6214003 DOI: 10.3390/ijms19103261] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 10/16/2018] [Accepted: 10/18/2018] [Indexed: 12/17/2022] Open
Abstract
Ovarian follicle provides a favorable environment for enclosed oocytes, which acquire their competence in supporting embryo development in tight communications with somatic follicular cells and follicular fluid (FF). Although steroidogenesis in theca (TH) and granulosa cells (GC) is largely studied, and the molecular mechanisms of fatty acid (FA) metabolism in cumulus cells (CC) and oocytes are emerging, little data is available regarding lipid metabolism regulation within ovarian follicles. In this study, we investigated lipid composition and the transcriptional regulation of FA metabolism in 3–8 mm ovarian follicles in bovine. Using liquid chromatography and mass spectrometry (MS), 438 and 439 lipids were identified in FF and follicular cells, respectively. From the MALDI-TOF MS lipid fingerprints of FF, TH, GC, CC, and oocytes, and the MS imaging of ovarian sections, we identified 197 peaks and determined more abundant lipids in each compartment. Transcriptomics revealed lipid metabolism-related genes, which were expressed constitutively or more specifically in TH, GC, CC, or oocytes. Coupled with differential lipid composition, these data suggest that the ovarian follicle contains the metabolic machinery that is potentially capable of metabolizing FA from nutrient uptake, degrading and producing lipoproteins, performing de novo lipogenesis, and accumulating lipid reserves, thus assuring oocyte energy supply, membrane synthesis, and lipid-mediated signaling to maintain follicular homeostasis.
Collapse
|
30
|
Ocampo A, Pedraza J, Ortiz G, Hernández-Pérez E, Porchia L, López-Bayghen E. Assessment of Prostaglandin-Endoperoxide Synthase 2 and Versican gene expression profile from the cumulus cells: association with better in vitro fertilization outcomes. J Ovarian Res 2018; 11:84. [PMID: 30241554 PMCID: PMC6148785 DOI: 10.1186/s13048-018-0456-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/06/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Current methods for determining superior embryo quality (morphological assessment) are unable to compensate for poor pregnancy outcomes. Due to the importance of the cumulus-oocyte complex and the value of cumulus cells (CCs) as markers of embryo health, we determined the association between the CCs gene expression of the Prostaglandin-Endoperoxide Synthase 2 (PTGS2) and Versican (VCAN) with pregnancy. METHODS One hundred forty-nine women, suffering from infertility and undergoing IVF, were included in this study (age: 29-46 years; BMI = 25.5 ± 5.0 kg/m2). Patients underwent a standard IVF protocol. CCs were isolated during oocyte retrieval, and their RNA was isolated using Trizol. The mRNA expression of PTGS2, VCAN, and L19 was measured by qPCR. The PVL index, (PTGS2 + VCAN)*L19normalized, was determined for each oocyte. Clinical pregnancy was confirmed by β-hCG and the presence of a fetal heartbeat. Associations were determined by ROC curves or logistic regression. RESULTS There was no correlation between the PVL index and morphological scores. Using only single embryo transfers (SETs), we determined that the PVL index was associated with pregnancy (β-hCG: AUC = 0.87, 95%CI: 0.74-1.00) with an optimal cutoff value of 58.2. Using the complete cohort (consisting of SETs, and patients with 2, 3, or 4 embryos transferred), the presence of at least one embryo with a PVL index score ≥ 58.2 was associated with a greater probability of achieving pregnancy (β-hCG: odds ratio = 17.15, 95%CI: 6.82-43.18, p < 0.001). CONCLUSION Transferring at least one embryo with a PVL index score ≥ 58.2, generates a higher chance of achieving pregnancy.
Collapse
Affiliation(s)
- Azucena Ocampo
- Laboratorio de Investigación y Diagnóstico Molecular, Instituto de Infertilidad y Genética, Ingenes México, Av. IPN 2508, 07360, CDMX, México.,Programa de Doctorado en Ciencias Biológicas y de la Salud, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. IPN 2508, 07360, CDMX, México
| | - Jeimy Pedraza
- Laboratorio de Investigación y Diagnóstico Molecular, Instituto de Infertilidad y Genética, Ingenes México, Av. IPN 2508, 07360, CDMX, México
| | - Ginna Ortiz
- Laboratorio de Investigación y Diagnóstico Molecular, Instituto de Infertilidad y Genética, Ingenes México, Av. IPN 2508, 07360, CDMX, México
| | - Elizabeth Hernández-Pérez
- Programa de Doctorado en Ciencias Biológicas y de la Salud, División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. IPN 2508, 07360, CDMX, México
| | - Leonardo Porchia
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, 07360, CDMX, México
| | - Esther López-Bayghen
- Laboratorio de Investigación y Diagnóstico Molecular, Instituto de Infertilidad y Genética, Ingenes México, Av. IPN 2508, 07360, CDMX, México. .,Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Av. IPN 2508, 07360, CDMX, México.
| |
Collapse
|
31
|
Mesbah F, Pracha AD, Talaei-Khozani T, Bahmanpour S. The effects of activated omental extract on nuclear and cytoplasmic in vitro maturation of rat oocytes. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2017; 20:1345-1353. [PMID: 29238470 PMCID: PMC5722995 DOI: 10.22038/ijbms.2017.9622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Objective: The role of growth factors, including vascular endothelial growth factor of activated omentum on mitosis is clearly known, though not on all the aspects of in vitro oocyte maturation. This study was designed to assess the effect of activated-omental extract (AOE) on in vitro maturation (IVM) of rat cumulus-oocyte complexes (COCs). Materials and Methods: In this experimental study, the COCs were incubated in Ham’s F-10 supplemented with either 20% AOE, 20% fetal bovine serum (FBS) or serum-free media. Post-culture COCs were studied according to the cumulus cells (CCs) expansion, nuclear maturation and cytoplasmic maturation. Cumuli expansion was evaluated by inverted microscope without staining; nuclear maturation was assessed by aceto-orcein staining (light microscope) and cytoplasmic maturation was also observed by TEM. Results: Expansion of CCs and nuclear maturation of the oocytes in in vitro for 24 hr was significantly higher in AOE- and FBS-supplemented groups (P=0.000 and 0.013) and (P=0.004 and 0.014), respectively, compared to serum-free group. At ultra-structural level, after 24 hr, both FBS and AOE-supplemented media showed uniformly wide perivitelline space (PVS). After 12 hr, the cortical granules were found in the oocytes cultured in FBS and AOE-supplemented media. Within 24 hr, both granules and mitochondria were large without any detectable topographic tendency across the ooplasm. In AOE and FBS-supplemented oocytes, the number and size of microvilli were more than those in serum-free one. Conclusion: Although AOE supplementation induced a higher rate of the CCs expansion, and resuming meiosis, it was not as potent as FBS to provide cytoplasmic maturation of rat oocytes.
Collapse
Affiliation(s)
- Fakhroddin Mesbah
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aris Donic Pracha
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tahereh Talaei-Khozani
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soghra Bahmanpour
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
32
|
Iwata H. Age-associated changes in granulosa cells and follicular fluid in cows. J Reprod Dev 2017; 63:339-345. [PMID: 28496019 PMCID: PMC5593084 DOI: 10.1262/jrd.2017-048] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 04/26/2017] [Indexed: 11/21/2022] Open
Abstract
Age-associated decline in oocyte quality is common in mammals. Oocytes take a long time to reach their full-grown size in large animals, and maternal physical conditions profoundly affect follicle development. Aging affects the oocyte itself as well as the surrounding environment, such as granulosa cells and follicular fluid. This review discusses age-associated changes that occur in granulosa cells and follicular fluid in cows and suggests that age-associated decline in granulosa cells and follicular fluid hampers proper oocyte development.
Collapse
Affiliation(s)
- Hisataka Iwata
- Tokyo University of Agriculture, Kanagawa 243-0034, Japan
| |
Collapse
|
33
|
Reversible meiotic arrest of bovine oocytes by EGFR inhibition and follicular hemisections. Theriogenology 2017; 99:53-62. [PMID: 28708500 DOI: 10.1016/j.theriogenology.2017.05.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 05/08/2017] [Accepted: 05/20/2017] [Indexed: 11/21/2022]
Abstract
The objective of this study was to investigate the effects of inhibiting the epidermal growth factor receptor (EGFR) pathway on meiosis blockage and resumption, mRNA expression of genes involved in oocyte maturation and cumulus expansion, and embryo development. Bovine cumulus-oocyte complexes (COCs) were cultured for 15 h in the presence of the EGFR inhibitor (AG1478) and follicular hemisections (FHS). Most of the oocytes (89.3%) remained at the germinal vesicle (GV) stage when cultured in the presence of FHS and 5 μM AG1478. The inhibitory effect was reversible as most oocytes (83.8%) completed meiosis after additional 20 h maturation. Embryo development to the blastocyst stage was similar (P > 0.05) between FHS and 5 μM AG1478 treated (39.3%) and control (41.1%) groups. In cumulus cells, mRNA abundance of early growth response protein 1 (EGR1), tumor necrosis factor alpha-induced protein 6 (TNFAIP6) and hyaluronan synthase 2 (HAS2) genes, and phosphorylated extracellular regulated kinase (p-ERK1/2) protein were lower in COCs treated with AG1478 plus FHS compared with FHS alone (P < 0.05). In granulosa cells of FHS, AG1478 treatment reduced transcript levels of PGR and ADAMTS1 (P < 0.05). The inhibitory effect of AG1478 on meiotic progression was not reverted by treatment with angiotensin II (ANG II) or prostaglandins (PGF2α or PGE2). This study demonstrates that inhibition of EGFR in the presence of FHS is a reliable approach to promote reversible arrest of bovine oocytes at the GV stage.
Collapse
|
34
|
Analysis of LH receptor in canine ovarian follicles throughout the estrous cycle. Theriogenology 2017; 93:71-77. [DOI: 10.1016/j.theriogenology.2017.01.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 01/15/2017] [Accepted: 01/15/2017] [Indexed: 12/25/2022]
|
35
|
Silva A, Bezerra F, Glanzner W, dos Santos J, Dau A, Rovani M, Ilha G, Costa J, Cunha E, Donato M, Peixoto C, Gonçalves P, Bordignon V, Silva J. mRNA expression profile of the TNF-α system in LH-induced bovine preovulatory follicles and effects of TNF-α on gene expression, ultrastructure and expansion of cumulus-oocyte complexes cultured in vitro. Theriogenology 2017; 90:1-10. [DOI: 10.1016/j.theriogenology.2016.11.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 11/07/2016] [Accepted: 11/17/2016] [Indexed: 11/26/2022]
|
36
|
Dholpuria S, Kumar M, Kumar S, Sarwalia P, Rajput S, Kumar R, De S, Datta TK. Differential Expression of Newly Identified Long Intergenic Non-Coding RNAs in Buffalo Oocytes Indicating Their Possible Role in Maturation and Embryonic Development. J Cell Biochem 2017; 118:1712-1721. [DOI: 10.1002/jcb.25828] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 12/06/2016] [Indexed: 01/14/2023]
Affiliation(s)
- Sunny Dholpuria
- Animal Biotechnology Centre; National Dairy Research Institute; Karnal Haryana India
| | - Manish Kumar
- Animal Biotechnology Centre; National Dairy Research Institute; Karnal Haryana India
| | - Sandeep Kumar
- Animal Biotechnology Centre; National Dairy Research Institute; Karnal Haryana India
| | - Parul Sarwalia
- Animal Biotechnology Centre; National Dairy Research Institute; Karnal Haryana India
| | - Sandeep Rajput
- Department of Animal Science; Michigan State University; East Lansing Michigan
| | - Rakesh Kumar
- Animal Biotechnology Centre; National Dairy Research Institute; Karnal Haryana India
| | - Sachinandan De
- Animal Biotechnology Centre; National Dairy Research Institute; Karnal Haryana India
| | - Tirtha K. Datta
- Animal Biotechnology Centre; National Dairy Research Institute; Karnal Haryana India
| |
Collapse
|
37
|
Lira-Albarrán S, Larrea-Schiavon MF, González L, Durand M, Rangel C, Larrea F. The effects of levonorgestrel on FSH-stimulated primary rat granulosa cell cultures through gene expression profiling are associated to hormone and folliculogenesis processes. Mol Cell Endocrinol 2017; 439:337-345. [PMID: 27663078 DOI: 10.1016/j.mce.2016.09.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 09/19/2016] [Accepted: 09/19/2016] [Indexed: 12/18/2022]
Abstract
Levonorgestrel (LNG), a synthetic progestin, is used in emergency contraception (EC). The mechanism is preventing or delaying ovulation at the level of the hypothalamic pituitary unit; however, little knowledge exists on LNG effects at the ovary. The aim of this study was to identify the effects of LNG on FSH-induced 17β-estradiol (E2) production, including LNG-mediated changes on global gene expression in rat granulosa cells (GC). Isolated GC from female Wistar rats were incubated in vitro in the presence or absence of human FSH and progestins. At the end of incubations, culture media and cells were collected for E2 and mRNA quantitation. The results showed the ability of LNG to inhibit both hFSH-induced E2 production and aromatase gene expression. Microarray analysis revealed that LNG treatment affects GC functionality particularly that related to folliculogenesis and steroid metabolism. These results may offer additional evidence for the mechanisms of action of LNG as EC.
Collapse
Affiliation(s)
- Saúl Lira-Albarrán
- Department of Reproductive Biology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Avenida Vasco de Quiroga No. 15, Ciudad de México 14080, México.
| | - Marco F Larrea-Schiavon
- Department of Computational Genomics, Instituto Nacional de Medicina Genómica, Periférico Sur No. 4809, Ciudad de México 14610, México.
| | - Leticia González
- Department of Reproductive Biology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Avenida Vasco de Quiroga No. 15, Ciudad de México 14080, México.
| | - Marta Durand
- Department of Reproductive Biology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Avenida Vasco de Quiroga No. 15, Ciudad de México 14080, México.
| | - Claudia Rangel
- Department of Computational Genomics, Instituto Nacional de Medicina Genómica, Periférico Sur No. 4809, Ciudad de México 14610, México.
| | - Fernando Larrea
- Department of Reproductive Biology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Avenida Vasco de Quiroga No. 15, Ciudad de México 14080, México.
| |
Collapse
|
38
|
Mesbah F, Kafi M, Nili H. Cumulus cell expansion and first polar body extrusion duringin vitrooocyte maturation in relation to morphological and morphometric characteristics of the dromedary camel ovary. Reprod Domest Anim 2016; 51:916-923. [DOI: 10.1111/rda.12758] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/16/2016] [Indexed: 11/30/2022]
Affiliation(s)
- F Mesbah
- Department of Anatomical Sciences; School of Medicine; Shiraz University of Medical Sciences; Shiraz Iran
| | - M Kafi
- Department of Animal Reproduction; School of Veterinary Medicine; Shiraz University; Shiraz Iran
| | - H Nili
- Department of Clinical Sciences; School of Veterinary Medicine; Shiraz University; Shiraz Iran
| |
Collapse
|
39
|
Melo EO, Cordeiro DM, Pellegrino R, Wei Z, Daye ZJ, Nishimura RC, Dode MAN. Identification of molecular markers for oocyte competence in bovine cumulus cells. Anim Genet 2016; 48:19-29. [PMID: 27650317 DOI: 10.1111/age.12496] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2016] [Indexed: 12/17/2022]
Abstract
Cumulus cells (CCs) have an important role during oocyte growth, competence acquisition, maturation, ovulation and fertilization. In an attempt to isolate potential biomarkers for bovine in vitro fertilization, we identified genes differentially expressed in bovine CCs from oocytes with different competence statuses, through microarray analysis. The model of follicle size, in which competent cumulus-oocyte complexes (COCs) were recovered from bigger follicles (≥8.0 mm in diameter) and less competent ones from smaller follicles (1-3 mm), was used. We identified 4178 genes that were differentially expressed (P < 0.05) in the two categories of CCs. The list was further enriched, through the use of a 2.5-fold change in gene expression as a cutoff value, to include 143 up-regulated and 80 down-regulated genes in CCs of competent COCs compared to incompetent COCs. These genes were screened according to their cellular roles, most of which were related to cell cycle, DNA repair, energy metabolism, metabolism of amino acids, cell signaling, meiosis, ovulation and inflammation. Three candidate genes up-regulated (FGF11, IGFBP4, SPRY1) and three down-regulated (ARHGAP22, COL18A1 and GPC4) in CCs from COCs of big follicles (≥8.1 mm) were selected for qPCR analysis. The selected genes showed the same expression patterns by qPCR and microarray analysis. These genes may be potential genetic markers that predict oocyte competence in in vitro fertilization routines.
Collapse
Affiliation(s)
- E O Melo
- Embrapa- Genetic Resources and Biotechnology, Brasília, DF, 70770-917, Brazil
| | - D M Cordeiro
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, DF, 70910-900, Brazil
| | - R Pellegrino
- Center for Applied Genomics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
| | - Z Wei
- Department of Computer Science, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Z J Daye
- Division of Epidemiology and Biostatistics, University of Arizona, Tucson, AZ, 85721, USA
| | - R C Nishimura
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, DF, 70910-900, Brazil
| | - M A N Dode
- Embrapa- Genetic Resources and Biotechnology, Brasília, DF, 70770-917, Brazil
| |
Collapse
|
40
|
Cheng JC, Fang L, Chang HM, Sun YP, Leung PCK. hCG-induced Sprouty2 mediates amphiregulin-stimulated COX-2/PGE2 up-regulation in human granulosa cells: a potential mechanism for the OHSS. Sci Rep 2016; 6:31675. [PMID: 27539669 PMCID: PMC4990972 DOI: 10.1038/srep31675] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 07/21/2016] [Indexed: 12/19/2022] Open
Abstract
Sprouty2 (SPRY2) is an important intracellular regulator for epidermal growth factor receptor (EGFR)-mediated ERK1/2 signaling. In human granulosa cells, although SPRY2 is expressed, its regulation and function remains complete unknown and must be defined. Our previous study has shown that human chorionic gonadotropin (hCG)/luteinizing hormone (LH) up-regulates the expression levels of EGF-like growth factor, amphiregulin (AREG), which subsequently contributes to the hCG/LH-induced COX-2 expression and PGE2 production. The aim of the present study was to investigate the effect of hCG on SPRY2 expression and the role of hCG-induced SPRY2 in AREG-stimulated COX-2 expression and PGE2 production in human granulosa cells. Our results demonstrated that the expression of SPRY2 was up-regulated by hCG treatment. Using pharmacological inhibitors and siRNA knockdown, we showed that activation of ERK1/2 signaling was required for hCG-induced up-regulation of SPRY2 expression. Further, SPRY2 knockdown attenuated the AREG-induced COX-2 expression and PGE2 production by inhibiting AREG-activated ERK1/2 signaling. Interestingly, we showed that SPRY2 expression levels were significantly increased in granulosa cells of ovarian hyperstimulation syndrome (OHSS) patients. These results for the first time elucidate the physiological roles of SPRY2 in human granulosa cells and suggest that aberrant expression of SPRY2 may contribute to the pathogenesis of OHSS.
Collapse
Affiliation(s)
- Jung-Chien Cheng
- Department of Obstetrics and Gynaecology, Child &Family Research Institute, University of British Columbia, Vancouver, British Columbia, V5Z 4H4, Canada
| | - Lanlan Fang
- Department of Obstetrics and Gynaecology, Child &Family Research Institute, University of British Columbia, Vancouver, British Columbia, V5Z 4H4, Canada.,Reproductive Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Hsun-Ming Chang
- Department of Obstetrics and Gynaecology, Child &Family Research Institute, University of British Columbia, Vancouver, British Columbia, V5Z 4H4, Canada
| | - Ying-Pu Sun
- Reproductive Medical Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Peter C K Leung
- Department of Obstetrics and Gynaecology, Child &Family Research Institute, University of British Columbia, Vancouver, British Columbia, V5Z 4H4, Canada
| |
Collapse
|
41
|
Boruszewska D, Sinderewicz E, Kowalczyk-Zieba I, Grycmacher K, Woclawek-Potocka I. Studies on lysophosphatidic acid action during in vitro preimplantation embryo development. Domest Anim Endocrinol 2016; 54:15-29. [PMID: 26379100 DOI: 10.1016/j.domaniend.2015.08.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 08/18/2015] [Accepted: 08/18/2015] [Indexed: 11/24/2022]
Abstract
Assisted reproductive technologies, including in vitro embryo production (IVP), have been successfully used in animal reproduction to optimize breeding strategies for improved production and health in animal husbandry. Despite the progress in IVP techniques over the years, further improvements in in vitro embryo culture systems are required for the enhancement of oocyte and embryo developmental competence. One of the most important issues associated with IVP procedures is the optimization of the in vitro culture of oocytes and embryos. Studies in different species of animals and in humans have identified important roles for receptor-mediated lysophosphatidic acid (LPA) signaling in multiple aspects of human and animal reproductive tract function. The data on LPA signaling in the ovary and uterus suggest that LPA can directly contribute to embryo-maternal interactions via its influence on early embryo development beginning from the influence of the ovarian environment on the oocyte to the influence of the uterine environment on the preimplantation embryo. This review discusses the current status of LPA as a potential supplement in oocyte maturation, fertilization, and embryo culture media and current views on the potential involvement of the LPA signaling pathway in early embryo development.
Collapse
Affiliation(s)
- D Boruszewska
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn 10-748, Poland
| | - E Sinderewicz
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn 10-748, Poland
| | - I Kowalczyk-Zieba
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn 10-748, Poland
| | - K Grycmacher
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn 10-748, Poland
| | - I Woclawek-Potocka
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn 10-748, Poland.
| |
Collapse
|
42
|
Behrouzi A, Colazo MG, Ambrose DJ. Alterations in bone morphogenetic protein 15, growth differentiation factor 9, and gene expression in granulosa cells in preovulatory follicles of dairy cows given porcine LH. Theriogenology 2015; 85:1249-57. [PMID: 26794084 DOI: 10.1016/j.theriogenology.2015.12.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/14/2015] [Accepted: 12/14/2015] [Indexed: 11/19/2022]
Abstract
In a previous work, using porcine LH (pLH) in lieu of GnRH for synchronizing ovulation in dairy cows improved pregnancy rates without increasing plasma progesterone concentrations after ovulation. The LH profile is known to remain elevated above basal concentrations (≥1 ng/mL) for up to 20 hours in pLH-treated cows compared to less than 6 hours in GnRH-treated cows. Because LH triggers a cascade of signaling networks in the preovulatory follicle to promote final maturation and support oocyte competence, we hypothesized that dissimilar LH profiles will differentially regulate the intrafollicular factors and expression of downstream genes associated with improved oocyte competence. Specific objectives were to determine differences in the abundance of oocyte-secreted factors in the preovulatory follicular fluid and target genes in granulosa cells associated with oocyte competence, in response to exogenous porcine LH or GnRH-induced endogenous bovine LH exposure, in dairy cows. Follicular contents were aspirated by a transvaginal ultrasound-guided procedure from the preovulatory follicle of cyclic, nonlactating Holstein cows 21 ± 1 hour after administration of either pLH (25-mg) or GnRH (100-μg). Mature forms of bone morphogenetic protein 15, growth differentiation factor 9, and transforming growth factorβ1 were approximately 2-fold more abundant in pLH-treated cows which were exposed to an extended, low LH profile, than in GnRH-treated cows that had a short, high LH profile. The relative abundance of messenger RNA for cyclooxygenase-2, LH receptor, and progesterone receptor in granulosa cells, was about two-, eight-, and two-fold higher, respectively, in cows subjected to pLH than GnRH treatment. We infer that the improved pregnancy rate after pLH-induced ovulation reported previously, occurred through greater activation of intrafollicular transforming growth factor-β1 superfamily members, as these proteins promote cumulus expansion and oocyte competence.
Collapse
Affiliation(s)
- Amir Behrouzi
- Livestock Research Branch, Alberta Agriculture and Forestry, Edmonton, AB, T6H 5T6, Canada; Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, T6G 2P5, Canada
| | - Marcos Germán Colazo
- Livestock Research Branch, Alberta Agriculture and Forestry, Edmonton, AB, T6H 5T6, Canada
| | - Divakar Justus Ambrose
- Livestock Research Branch, Alberta Agriculture and Forestry, Edmonton, AB, T6H 5T6, Canada; Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, T6G 2P5, Canada.
| |
Collapse
|
43
|
Kussano NR, Leme LO, Guimarães ALS, Franco MM, Dode MAN. Molecular markers for oocyte competence in bovine cumulus cells. Theriogenology 2015; 85:1167-76. [PMID: 26792377 DOI: 10.1016/j.theriogenology.2015.11.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 11/28/2015] [Accepted: 11/30/2015] [Indexed: 12/26/2022]
Abstract
This study aimed to quantify the expression of candidate genes in cumulus cells (CCs) from cumulus-oocyte complexes (COCs) with high and low potential for in vitro development up to the blastocyst stage. First, the effects of individual culture and biopsy on embryo development were evaluated. Individuals cultured using the well of the well system were compared with individuals cultured in 20 μL droplets (microdroplets) and those cultured in groups (control). Blastocyst rates were lower for the individual culture systems (P < 0.05; well of the well = 17.9%, n = 95; microdrop = 26.3%, n = 95) than for the control group (45.0%, n = 209). Second, the effects of biopsy on embryo production were compared between the control and microdroplet cultures, and no effects (P > 0.05) were observed for either group. Finally, the expression profiles of glypican 4 (GPC4), IGF4-binding protein, follicle-stimulating hormonereceptor, growth hormone receptor, epidermal growth factor receptor, fibroblast growth factor 11, solute carrier family 2 member 1, solute carrier family 2 member 3,sprouty homolog 1, versican, and keratin protein 8 in CCs obtained by biopsy were quantified by real-time polymerase chain reaction. Cumulus cells were categorized on the basis of the fates of the COCs: expanded blastocyst, cleaved and arrested, and uncleaved. The GPC4 gene was overexpressed (P = 0.007) in CCs from oocytes that formed embryos compared with those that produced cleaved and arrested embryos. We concluded that individual culture reduced blastocyst production; however, biopsy did not affect embryo development. The profile of GPC4 expression can be used as a marker to distinguish COCs with potential for embryo development from those with limited developmental potential.
Collapse
Affiliation(s)
- N R Kussano
- School of Veterinary Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - L O Leme
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, Distrito Federal, Brazil
| | - A L S Guimarães
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, Distrito Federal, Brazil
| | - M M Franco
- School of Veterinary Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil; Laboratory of Animal Reproduction, Embrapa-Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil
| | - M A N Dode
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, Distrito Federal, Brazil; Laboratory of Animal Reproduction, Embrapa-Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil.
| |
Collapse
|
44
|
Nagai K, Yanagawa Y, Katagiri S, Nagano M. Fertilizability of oocytes derived from Holstein cows having different antral follicle counts in ovaries. Anim Reprod Sci 2015; 163:172-8. [PMID: 26588889 DOI: 10.1016/j.anireprosci.2015.11.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 11/02/2015] [Accepted: 11/03/2015] [Indexed: 11/27/2022]
Abstract
In this study, to clarify the relationship between ovarian reserve and oocyte quality, cumulus-oocyte complexes (COCs) were collected repeatedly by ovum pick-up (OPU) from cows with high and low antral follicle counts (AFCs) at short (3-4 days) and long (7 days) intervals, and COC morphologies and oocyte fertilizability were examined. The relationship between AFC and follicular growth after OPU was also investigated. Cows showing AFC of ≥30 in at least one OPU session were grouped into the high-AFC group. At a short interval, follicular sizes and COC morphologies were similar between the different AFC groups. However, the normal fertilization rate was higher in the high-AFC group than in the low one, although total penetration rates were similar. At a long interval, the percentage of COCs with poor morphology in the high-AFC group was higher and the normal fertilization rate was lower than in the low one. In the low-AFC group, normal fertilization rates at short and long intervals were similar, and mean follicular size became larger at a long than at a short interval. However, mean follicular sizes at short- and long-interval OPU were similar in the high-AFC group. In conclusion, it is suggested that oocytes derived from cows with high AFC had higher fertilizability than those from cows with low AFC when OPUs were performed at a short (3-4 days) interval. However, oocyte quality in high-AFC cows was impaired by long-interval (7 days) OPU, possibly due to the degradation of follicles.
Collapse
Affiliation(s)
- Katsuhisa Nagai
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan; Laboratory of Theriogenology, Department of Large Animal Clinical Sciences, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan.
| |
Collapse
|
45
|
Bunel A, Nivet AL, Blondin P, Vigneault C, Richard FJ, Sirard MA. Cumulus cell gene expression associated with pre-ovulatory acquisition of developmental competence in bovine oocytes. Reprod Fertil Dev 2015; 26:855-65. [PMID: 23827322 DOI: 10.1071/rd13061] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Accepted: 06/04/2013] [Indexed: 12/24/2022] Open
Abstract
The final days before ovulation impact significantly on follicular function and oocyte quality. This study investigated the cumulus cell (CC) transcriptomic changes during the oocyte developmental competence acquisition period. Six dairy cows were used for 24 oocyte collections and received FSH twice daily over 3 days, followed by FSH withdrawal for 20, 44, 68 and 92 h in four different oestrous cycles for each of the six cows. Half of the cumulus-oocyte complexes were subjected to in vitro maturation, fertilisation and culture to assess blastocyst rate. The other half of the CC underwent microarray analysis (n=3 cows, 12 oocyte collections) and qRT-PCR (n=3 other cows, 12 oocyte collections). According to blastocyst rates, 20 h of FSH withdrawal led to under-differentiated follicles (49%), 44 and 68 h to the most competent follicles (71% and 61%) and 92 h to over-differentiated ones (51%). Ten genes, from the gene lists corresponding to the three different follicular states, were subjected to qRT-PCR. Interestingly, CYP11A1 and NSDHL gene expression profiles reflected the blastocyst rate. However most genes were associated with the over-differentiated status: GATM, MAN1A1, VNN1 and NRP1. The early period of FSH withdrawal has a minimal effect on cumulus gene expression, whereas the longest period has a very significant one and indicates the beginning of the atresia process.
Collapse
Affiliation(s)
- A Bunel
- Centre de Recherche en Biologie de la Reproduction, Faculté des Sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Université Laval, Québec, QC G1V 0A6, Canada
| | - A L Nivet
- Centre de Recherche en Biologie de la Reproduction, Faculté des Sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Université Laval, Québec, QC G1V 0A6, Canada
| | - P Blondin
- L'Alliance Boviteq, 19320 Grand rang St-François, Saint-Hyacinthe, Québec, QC J2T 5H1, Canada
| | - C Vigneault
- L'Alliance Boviteq, 19320 Grand rang St-François, Saint-Hyacinthe, Québec, QC J2T 5H1, Canada
| | - F J Richard
- Centre de Recherche en Biologie de la Reproduction, Faculté des Sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Université Laval, Québec, QC G1V 0A6, Canada
| | - M A Sirard
- Centre de Recherche en Biologie de la Reproduction, Faculté des Sciences de l'Agriculture et de l'Alimentation, Département des Sciences Animales, Université Laval, Québec, QC G1V 0A6, Canada
| |
Collapse
|
46
|
Khan D, Guillemette C, Sirard M, Richard F. Characterization of FSH signalling networks in bovine cumulus cells: a perspective on oocyte competence acquisition. Mol Hum Reprod 2015; 21:688-701. [DOI: 10.1093/molehr/gav032] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 06/18/2015] [Indexed: 12/23/2022] Open
|
47
|
Shao L, Chian RC, Xu Y, Yan Z, Zhang Y, Gao C, Gao L, Liu J, Cui Y. Genomic expression profiles in cumulus cells derived from germinal vesicle and MII mouse oocytes. Reprod Fertil Dev 2015; 28:RD15077. [PMID: 25989843 DOI: 10.1071/rd15077] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 04/21/2015] [Indexed: 01/25/2023] Open
Abstract
Cumulus cells (CCs) are distinct from other granulosa cells and the mutual communication between CCs and oocytes is essential for the establishment of oocyte competence. In the present study we assessed genomic expression profiles in mouse CCs before and after oocyte maturation in vitro. Microarray analysis revealed significant changes in gene expression in CCs between the germinal vesicle (GV) and metaphase II (MII) stages, with 2615 upregulated and 2808 downregulated genes. Genes related to epidermal growth factor, extracellular matrix (Ptgs2, Ereg, Tnfaip6 and Efemp1), mitochondrial metabolism (Fdx1 and Aifm2), gap junctions and the cell cycle (Gja1, Gja4, Ccnd2, Ccna2 and Ccnb2) were highlighted as being differentially expressed between the two development stages. Real-time polymerase chain reaction confirmed the validity and reproducibility of the results for the selected differentially expressed genes. Similar expression patterns were identified by western blot analysis for some functional proteins, including EFEMP1, FDX1, GJA1 and CCND2, followed by immunofluorescence localisation. These genes may be potential biomarkers for oocyte developmental competence following fertilisation and will be investigated further in future studies.
Collapse
|
48
|
Boruszewska D, Sinderewicz E, Kowalczyk-Zieba I, Grycmacher K, Woclawek-Potocka I. The effect of lysophosphatidic acid during in vitro maturation of bovine cumulus-oocyte complexes: cumulus expansion, glucose metabolism and expression of genes involved in the ovulatory cascade, oocyte and blastocyst competence. Reprod Biol Endocrinol 2015; 13:44. [PMID: 25981539 PMCID: PMC4438640 DOI: 10.1186/s12958-015-0044-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 05/12/2015] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND In the cow, lysophosphatidic acid (LPA) acts as an auto-/paracrine factor, through its receptors LPAR1-4, on oocytes and cumulus cells during in vitro maturation (IVM). The aim of the present work was to determine the effect of LPA during IVM of bovine oocytes on: 1) oocyte maturation; 2) apoptosis of COCs; 3) expression of genes involved in developmental competence and apoptosis in bovine oocytes and subsequent blastocysts; 4) cumulus expansion and expression of genes involved in the ovulatory cascade in cumulus cells; 5) glucose metabolism and expression of genes involved in glucose utilization in cumulus cells; 6) cleavage and blastocyst rates on Day 2 and Day 7 of in vitro culture, respectively. METHODS Cumulus-oocyte complexes (COCs) were matured in vitro in the presence or absence of LPA (10(-5) M) for 24 h. Following maturation, we determined: oocyte maturation stage, cumulus expansion, COCs apoptosis and glucose and lactate levels in the maturation medium. Moreover, COCs were either used for gene expression analysis or fertilized in vitro. The embryos were cultured until Day 7 to assess cleavage and blastocyst rates. Oocytes, cumulus cells and blastocysts were used for gene expression analysis. RESULTS Supplementation of the maturation medium with LPA enhanced oocyte maturation rates and stimulated the expression of developmental competence-related factors (OCT4, SOX2, IGF2R) in oocytes and subsequent blastocysts. Moreover, LPA reduced the occurrence of apoptosis in COCs and promoted an antiapoptotic balance in the transcription of genes involved in apoptosis (BAX and BCL2) either in oocytes or blastocysts. LPA increased glucose uptake by COCs via augmentation of GLUT1 expression in cumulus cells as well as stimulating lactate production via the enhancement of PFKP expression in cumulus cells. LPA did not affect cumulus expansion as visually assessed, however, it stimulated upstream genes of cumulus expansion cascade, AREG and EREG. CONCLUSIONS Supplementation of the maturation medium with LPA improves oocyte maturation rates, decreases extent of apoptosis in COCs and sustains the expression of developmental competence related factors during oocyte maturation and subsequently affects gene expression profile at the blastocyst stage. We also demonstrate that LPA directs glucose metabolism toward the glycolytic pathway during IVM.
Collapse
Affiliation(s)
- Dorota Boruszewska
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748, Olsztyn, Poland.
| | - Emilia Sinderewicz
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748, Olsztyn, Poland.
| | - Ilona Kowalczyk-Zieba
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748, Olsztyn, Poland.
| | - Katarzyna Grycmacher
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748, Olsztyn, Poland.
| | - Izabela Woclawek-Potocka
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748, Olsztyn, Poland.
| |
Collapse
|
49
|
|
50
|
Sood P, Zachut M, Dube H, Moallem U. Behavioral and hormonal pattern of repeat breeder cows around estrus. Reproduction 2015; 149:545-54. [PMID: 25731187 DOI: 10.1530/rep-14-0598] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 03/02/2015] [Indexed: 11/08/2022]
Abstract
Repeat breeder (RB) cows were compared with normal (CTRL) ones with respect to behavioral estrus intensity, endocrine patterns and concentrations of plasma estradiol, progesterone and LH around estrus, and ovulation timing. A total of 27 and 31 cycles in 12 RB and 18 CTRL cows, respectively, were synchronized by means of the Ovsynch protocol followed by a single PG injection after 7 days. Behavioral estrus and ovulation were observed in 81.5 and 83.8% of the synchronized cycles in the RB and CTRL cows respectively. The RB and CTRL groups had similar estrus durations of 21.4 and 19.6 h respectively, but estrus was more intense in the RB, as indicated by numerically higher overall activity indexes and higher peak neck activity. The interval from PG injection to estrus onset (considered as proestrus) was 8.2 h shorter in RB than in CTRL cows, at 47.9 and 56.1 h respectively (P<0.007), but the average preovulatory follicle size was similar. The estradiol concentration at peak was numerically higher (21%) and the AUC tended to be higher in the RB cows than in the CTRL cows. LH secretion during the period from 18 to 3 h before the LH peak was also lower in RB than in CTRL cows: 2.5 and 4.6 ng/ml respectively (P<0.01). In conclusion, the behavioral estrus was more intense in the RB cows; nevertheless, short proestrus and subdued LH concentrations before the LH peak, which could impair oocyte competence and development, were first reported in RB cows.
Collapse
Affiliation(s)
- P Sood
- Department of Ruminant ScienceInstitute of Animal Sciences, The Volcani Center, PO Box 6, Bet-Dagan 50250, IsraelDepartment of Veterinary Gynecology and ObstetricsDGCN College of Veterinary and Animal Sciences, Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062, India Department of Ruminant ScienceInstitute of Animal Sciences, The Volcani Center, PO Box 6, Bet-Dagan 50250, IsraelDepartment of Veterinary Gynecology and ObstetricsDGCN College of Veterinary and Animal Sciences, Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062, India
| | - M Zachut
- Department of Ruminant ScienceInstitute of Animal Sciences, The Volcani Center, PO Box 6, Bet-Dagan 50250, IsraelDepartment of Veterinary Gynecology and ObstetricsDGCN College of Veterinary and Animal Sciences, Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062, India
| | - H Dube
- Department of Ruminant ScienceInstitute of Animal Sciences, The Volcani Center, PO Box 6, Bet-Dagan 50250, IsraelDepartment of Veterinary Gynecology and ObstetricsDGCN College of Veterinary and Animal Sciences, Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062, India
| | - U Moallem
- Department of Ruminant ScienceInstitute of Animal Sciences, The Volcani Center, PO Box 6, Bet-Dagan 50250, IsraelDepartment of Veterinary Gynecology and ObstetricsDGCN College of Veterinary and Animal Sciences, Himachal Pradesh Agricultural University, Palampur, Himachal Pradesh 176 062, India
| |
Collapse
|