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Aquaporin Biology of Spermatogenesis and Sperm Physiology in Mammals and Teleosts

AuthorsBoj, Mónica; Chauvigné, François CSIC ORCID; Cerdà, Joan CSIC ORCID
Issue Date1-Aug-2015
PublisherMarine Biological Laboratory
CitationBiological Bulletin 229(1): 93-108 (2015)
AbstractFluid homeostasis is recognized as a critical factor during the development, maturation, and function of vertebrate male germ cells. These processes have been associated with the presence of multiple members of the aquaporin superfamily of water and solute channels in different cell types along the reproductive tract as well as in spermatozoa. We present a comparative analysis of the existing knowledge of aquaporin biology in the male reproductive tissues of mammals and teleosts. Current data suggest that in both vertebrate groups, aquaporins may have similar functions during differentiation of spermatozoa in the germinal epithelium, in the concentration and maturation of sperm in the testicular ducts, and in the regulation of osmotically induced volume changes in ejaculated spermatozoa. Recent studies have also provided insight into the possible function of aquaporins beyond water transport, such as in signaling pathways during spermatogenesis or the sensing of cell swelling and mitochondrial peroxide transport in activated sperm. However, an understanding of the specific physiological functions of the various aquaporins during germ cell development and sperm motility, as well as the molecular mechanisms involved, remains elusive. Novel experimental approaches need to be developed to elucidate these processes and to dissect the regulatory intracellular pathways implicated, which will greatly help to uncover the molecular basis of sperm physiology and male fertility in vertebrates. © 2015 Marine Biological Laboratory
DescriptionSpecial issue New Insights into Aquaporin Evolution and Physiology in Eukaryotic Organisms.-- 16 pages, 1 figure, 1 table
Publisher version (URL)https://www.biolbull.org/content/229/1/93.full
Identifiersissn: 0006-3185
e-issn: 1939-8697
doi: 10.1086/BBLv229n1p93
Appears in Collections:(ICM) Artículos
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