囊性纤维化跨膜传导调节器
水通道蛋白
囊性纤维化
生物
男性不育
细胞生物学
不育
电容
氯离子通道
血睾丸屏障
精子
内科学
内分泌学
精子发生
遗传学
医学
支持细胞
怀孕
作者
Marco G. Alves,Rosália Sá,Tito T. Jesus,Mário Sousa,Pedro F. Oliveira
出处
期刊:Current Drug Targets
[Bentham Science]
日期:2015-08-28
卷期号:16 (9): 993-1006
被引量:16
标识
DOI:10.2174/1573399811666150615144108
摘要
The formation of competent spermatozoa is associated with the movement of large quantities of water and electrolytes in the various tissues and luminal fluids of the male reproductive tract. The cystic fibrosis transmembrane conductance regulator (CFTR) is a cAMP-activated Cl(-) and HCO3(-) membrane transporter. CFTR gene mutations cause cystic fibrosis (CF), the most common lethal genetic disease in Caucasians. Of note, one hallmark in CF is male infertility. Indeed, mutations of CFTR gene cause abnormal production of germ cells and a reduction in germ cell quality and number. Compelling evidence illustrates that CFTR is involved in several pivotal processes for male fertility, including spermatogenesis and sperm capacitation. Recent studies show that CFTR acts as a molecular partner of specific water channels, known as aquaporins, in somatic testicular cells. Aquaporins are water-selective channels that enable high permeability fluxes of water across plasma membranes. In the male reproductive tract, water movements and ion concentrations are determinants for the male reproductive function. Therefore, aquaporins expression and function play a key role in male fertility. Herein we present an overview of the expression and function of CFTR in the male reproductive tract, highlighting the reproductive outcomes in male carriers of CFTR mutations and CF couples. We also present an up-to-date discussion on the expression and role of aquaporins in the male reproductive tract. Finally, we discuss the regulation of aquaporin-mediated water transport by CFTR in the male reproductive tract and its implication for male fertility.
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