Abstract
Bicarbonate (HCO3 -) membrane transport systems are crucial players in the physiology of several tissues. The molecular basis of HCO3 - membrane transport is of major physiological relevance since this ion is involved in the establishment of intracellular and extracellular ionic composition, osmolariy and pH. The membrane HCO3 - transporters are divided in two main families: solute carrier 4 (SLC4) and solute carrier 26 (SLC26), although HCO3 - concentration can also be regulated by the cystic fibrosis transmembrane regulator (CFTR). In most tissues the SLC4 family represents the majority of HCO3 - transporters members, which can be divided in two subgroups: the Na+-dependent and the Na+- independent transporters. The SLC26 family consists of ten members that can transport diverse ions besides HCO3 -.
In the male reproductive tract, HCO3 - transport occurs in several processes in order to assure a correct pursuance of the spermatogenetic event and spermatozoa capacitation, being also necessary for egg fertilization. Indeed, the formation of competent spermatozoa, the maintenance of an adequate ductal luminal milieu and spermatozoa capacitation are highly dependent of ionic balance and pH. Perturbations in these processes result in reduced male reproductive health and consequently male subfertility and/or infertility. Thus, it is imperative to understand HCO3 - transport dynamics in order to identify and counteract possible alterations related with reduced male fertility caused by pathological conditions. Herein, we will review the major families and subfamilies of HCO3 - membrane transport, discussing the molecular basis of HCO3 - transport in the male reproductive tract and its role in male-associated subfertility and/or infertility.
Keywords: Bicarbonate transport, CFTR, male fertility, membrane transporters, SLC4, SLC26.
Current Medicinal Chemistry
Title:Molecular Basis of Bicarbonate Membrane Transport in the Male Reproductive Tract
Volume: 20 Issue: 32
Author(s): R. L. Bernardino, T. T. Jesus, A. D. Martins, M. Sousa, A. Barros, J. E. Cavaco, S. Socorro, M. G. Alves and P. F. Oliveira
Affiliation:
Keywords: Bicarbonate transport, CFTR, male fertility, membrane transporters, SLC4, SLC26.
Abstract: Bicarbonate (HCO3 -) membrane transport systems are crucial players in the physiology of several tissues. The molecular basis of HCO3 - membrane transport is of major physiological relevance since this ion is involved in the establishment of intracellular and extracellular ionic composition, osmolariy and pH. The membrane HCO3 - transporters are divided in two main families: solute carrier 4 (SLC4) and solute carrier 26 (SLC26), although HCO3 - concentration can also be regulated by the cystic fibrosis transmembrane regulator (CFTR). In most tissues the SLC4 family represents the majority of HCO3 - transporters members, which can be divided in two subgroups: the Na+-dependent and the Na+- independent transporters. The SLC26 family consists of ten members that can transport diverse ions besides HCO3 -.
In the male reproductive tract, HCO3 - transport occurs in several processes in order to assure a correct pursuance of the spermatogenetic event and spermatozoa capacitation, being also necessary for egg fertilization. Indeed, the formation of competent spermatozoa, the maintenance of an adequate ductal luminal milieu and spermatozoa capacitation are highly dependent of ionic balance and pH. Perturbations in these processes result in reduced male reproductive health and consequently male subfertility and/or infertility. Thus, it is imperative to understand HCO3 - transport dynamics in order to identify and counteract possible alterations related with reduced male fertility caused by pathological conditions. Herein, we will review the major families and subfamilies of HCO3 - membrane transport, discussing the molecular basis of HCO3 - transport in the male reproductive tract and its role in male-associated subfertility and/or infertility.
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Cite this article as:
Bernardino L. R., Jesus T. T., Martins D. A., Sousa M., Barros A., Cavaco E. J., Socorro S., Alves G. M. and Oliveira F. P., Molecular Basis of Bicarbonate Membrane Transport in the Male Reproductive Tract, Current Medicinal Chemistry 2013; 20 (32) . https://dx.doi.org/10.2174/15672050113109990200
DOI https://dx.doi.org/10.2174/15672050113109990200 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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