期刊
REPRODUCTION
卷 161, 期 4, 页码 459-475出版社
BIOSCIENTIFICA LTD
DOI: 10.1530/REP-20-0392
关键词
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资金
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- Fundacao de Amparo a Pesquisa de Minas Gerais (FAPEMIG) [APQ-02514-16, PPM-0062118]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [420077/2018-9, 302088/2018-0]
Proteomic approaches are commonly used in reproductive studies to identify protein biomarkers influencing bull fertility. Seminal plasma proteins can impact sperm physiology, with certain proteins like osteopontin enhancing sperm motility, capacitation, and fertilizing ability. Variations in protein analyses and contents among animals contribute to the challenge of establishing protein biomarkers for bull sperm fertility potential. Future studies should focus on evaluating protein isoforms and their interactions with sperm for better understanding of their biological functions.
Proteomic approaches have been widely used in reproductive studies to uncover protein biomarkers of bull fertility. Seminal plasma is one of the most relevant sources of these proteins that may influence sperm physiology. Nonetheless, there are still gaps in existing knowledge in the functional attributes of seminal proteins. Thus, we reviewed the relationships between seminal plasma proteins and bull fertility by conducting a systematic review with data obtained from 71 studies. This review showed that the associations related to fertility improvement with the use of total seminal plasma proteins are still controversial. None of the studies explored the sperm fertilizing ability following these interactions. By contrast, the exposure to a single protein, such as osteopontin, binder of sperm proteins, and heparin binding proteins, can increment sperm motility, capacitation, and fertilizing ability by modulating intracellular calcium concentrations, removing lipids from sperm membranes, and regulating the acrosome reaction. Variations in protein analyses and the protein contents and their abundances between animals contributed to the difficulty of establishing protein biomarkers of fertilizing potential of the bull sperm. Indeed, the heterogenicity of methodologies was a limitation of this review. Standardized methods of seminal protein analyses, as well as sperm endpoints, may minimize such discrepancies. In conclusion, potential biomarkers of sperm parameters are still to be established. Future studies should evaluate protein isoforms and how they interact with sperm to ascertain their biological functions.
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