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Ishak GM, Feugang JM, Pechanova O, Pechan T, Peterson DG, Willard ST, Ryan PL, Gastal EL. Follicular-fluid proteomics during equine follicle development. Mol Reprod Dev 2022; 89:298-311. [PMID: 35762042 DOI: 10.1002/mrd.23622] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/04/2022] [Accepted: 06/03/2022] [Indexed: 11/06/2022]
Abstract
The complex composition of the follicular fluid (FF), the intimate proximity to the oocyte, and the continual changes in their composition have a major effect on folliculogenesis and oogenesis. To date, the profiling of FF proteomes during follicle selection, development, and ovulation has not been comprehensively investigated. Therefore, a shotgun proteomics approach and bioinformatics analyses were used to profile the proteomes of equine FF harvested in vivo from follicles at the following development stages: predeviation (18-20 mm), deviation (22-25 mm), postdeviation (26-29 mm), preovulatory (30-35 mm), and impending ovulation. A total of 294 proteins were detected in FF (FDR <1%), corresponding to 65 common proteins and 124, 142, 167, 132, and 142 proteins in the predeviation, deviation, postdeviation, preovulatory, and impending ovulation groups, respectively. The higher expression of properdin and several other proteins belonging to the complement system during the deviation time and ovulation suggested their contribution in the selection of the future dominant follicle and ovulation. Apolipoprotein A-1 and antithrombin-III appeared to be important throughout folliculogenesis. The "complement and coagulation cascades" was the major KEGG pathway across all stages of follicle development. The significant expression of several proteins belonging to the serine-type endopeptidase indicated their likely contribution to follicle and oocyte development. Our data provide an extensive description and functional analyses of the equine FF proteome during follicle selection, development, and ovulation. This information will help improve understanding of the ovarian function and ovulatory dysfunctions and might serve as a reference for future biomarker discovery for oocyte quality assessment.
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Affiliation(s)
- Ghassan M Ishak
- Department of Surgery and Obstetrics, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq
- Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA
| | - Jean M Feugang
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, Mississippi, USA
| | - Olga Pechanova
- Institute for Genomics, Biocomputing & Biotechnology, Mississippi State University, Mississippi State, Mississippi, USA
| | - Tibor Pechan
- Institute for Genomics, Biocomputing & Biotechnology, Mississippi State University, Mississippi State, Mississippi, USA
| | - Daniel G Peterson
- Institute for Genomics, Biocomputing & Biotechnology, Mississippi State University, Mississippi State, Mississippi, USA
| | - Scott T Willard
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, Mississippi, USA
| | - Peter L Ryan
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, Mississippi, USA
| | - Eduardo L Gastal
- Animal Science, School of Agricultural Sciences, Southern Illinois University, Carbondale, Illinois, USA
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Dutra GA, Ishak GM, Pechanova O, Pechan T, Peterson DG, Jacob JCF, Willard ST, Ryan PL, Gastal EL, Feugang JM. Seasonal variation in equine follicular fluid proteome. Reprod Biol Endocrinol 2019; 17:29. [PMID: 30841911 PMCID: PMC6404268 DOI: 10.1186/s12958-019-0473-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 02/26/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Proteomic studies of follicular fluid (FF) exist for several species, including the horse; however, the seasonal influence on FF proteome has not been explored in livestock. The application of high-throughput proteomics of FF in horse has the potential to identify seasonal variations of proteins involved in follicle and oocyte growth. METHODS This study (i) profiles the proteomes of equine FF collected from dominant growing follicles during the spring anovulatory season (SAN), and spring (SOV), summer (SUM), and fall (FOV) ovulatory seasons; and (ii) identifies season-dependent regulatory networks and associated key proteins. RESULTS Regardless of season, a total of 90 proteins were identified in FF, corresponding to 63, 72, 69, and 78 proteins detected in the SAN, SOV, SUM, and FOV seasons, respectively. Fifty-two proteins were common to all seasons, a total of 13 were unique to either season, and 25 were shared between two seasons or more. Protein-to-protein interaction (PPI) analysis indicated the likely critical roles of plasminogen in the SAN season, the prothrombin/plasminogen combination in SUM, and plasminogen/complement C3 in both SOV and FOV seasons. The apolipoprotein A1 appeared crucial in all seasons. The present findings show that FF proteome of SUM differs from other seasons, with FF having high fluidity (low viscosity). CONCLUSIONS The balance between the FF contents in prothrombin, plasminogen, and coagulation factor XII proteins favoring FF fluidity may be crucial at the peak of the ovulatory season (SUM) and may explain the reported lower incidence of hemorrhagic anovulatory follicles during the SUM season.
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Affiliation(s)
- G A Dutra
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
- Department of Reproduction and Animal Evaluation, Federal Rural University of Rio de Janeiro, Seropédica, Brazil
| | - G M Ishak
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
- Department of Surgery and Obstetrics, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq
| | - O Pechanova
- Institute for Genomics, Biocomputing and Bioinformatics, University, Mississippi State, Oxford, MS, USA
| | - T Pechan
- Institute for Genomics, Biocomputing and Bioinformatics, University, Mississippi State, Oxford, MS, USA
| | - D G Peterson
- Institute for Genomics, Biocomputing and Bioinformatics, University, Mississippi State, Oxford, MS, USA
| | - J C F Jacob
- Department of Reproduction and Animal Evaluation, Federal Rural University of Rio de Janeiro, Seropédica, Brazil
| | - S T Willard
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, 4025 Wise Center, PO Box 9815, Mississippi State, MS, 39762, USA
| | - P L Ryan
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, 4025 Wise Center, PO Box 9815, Mississippi State, MS, 39762, USA
| | - E L Gastal
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale, IL, USA
| | - J M Feugang
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, 4025 Wise Center, PO Box 9815, Mississippi State, MS, 39762, USA.
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Santos G, Bastos H, Sá M, Jacob J, Wolf C, Mattos R, Neves A. Combination of hCG and Deslorelin Acetate on the Induction of Ovulation in Mares: Changes in Follicular Fluid Protein Profile. J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2018.05.168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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