Immunohystochemical analysis of CFTR in normal and disrupted spermatogenesis
2013
Cystic fibrosis is the most frequent autosomal recessive disease in the Caucasian population, with an incidence of 1:2500 newborn and a frequency of 1:25. The associated gene is Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) and it encodes the CFTR protein that functions as a chloride (Cl−) channel. It is found in the apical membrane of exocrine epithelial cells, responsible for the regulation of the movement of water and solutes through biological membranes. To our knowledge, there are no studies on protein localization in the different cell types of the seminiferous epithelium with different pathologies. The aim of the present study was to analyze the expression of the CFTR protein in the human seminiferous epithelium of infertile males with different pathologies. CFTR protein expression was studied by immunohistochemistry in paraffin sections of testicular biopsies of six infertile men: Sertoli cell only syndrome, maturation arrest, secondary obstructive azoospermia, primary obstructive azo...
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