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An epididymis-specific carboxyl esterase CES5A is required for sperm capacitation and male fertility in the rat
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An epididymis-specific carboxyl esterase CES5A is required for sperm capacitation and male fertility in the rat
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Journal Article
An epididymis-specific carboxyl esterase CES5A is required for sperm capacitation and male fertility in the rat
2015
Overview
Despite the fact that the phenomenon of capacitation was discovered over half century ago and much progress has been made in identifying sperm events involved in capacitation, few specific molecules of epididymal origin have been identified as being directly involved in this process in vivo . Previously, our group cloned and characterized a carboxyl esterase gene Ces5a in the rat epididymis. The CES5A protein is mainly expressed in the corpus and cauda epididymidis and secreted into the corresponding lumens. Here, we report the function of CES5A in sperm maturation. By local injection of Lentivirus -mediated siRNA in the CES5A -expressing region of the rat epididymis, Ces5a -knockdown animal models were created. These animals exhibited an inhibited sperm capacitation and a reduction in male fertility. These results suggest that CES5A plays an important role in sperm maturation and male fertility.
Publisher
Medknow Publications and Media Pvt. Ltd,Medknow Publications & Media Pvt. Ltd,Medknow Publications & Media Pvt Ltd,Wolters Kluwer Medknow Publications
Subject
/ Carboxylesterase - deficiency
/ Carboxylesterase - physiology
/ carboxylesterase; CES5A; epididymis; male fertility; sperm capacitation
/ Enzymes
/ Genes
/ Male
/ Mammals
/ Motility
/ Original
/ Proteins
/ Rats
/ RNA, Small Interfering - pharmacology
/ Rodents
/ Sperm
