The properties of spermatogonial stem cells, endothelial progenitor cells, and the epithelial progenitors of C57Bl/6 mice under conditions of metabolic disorders were studied using the model of busulfan-induced suppression of spermatogenesis and in vitro culture technique. Spermatogonial stem cells CD117—CD90+ and epithelial progenitors CD45—CD31—Sca-1+CD49f+ derived from the testes of mice with metabolic disturbances demonstrated 17- and 28-fold increase in the respective cell mass and generated cell colonies in vitro. In contrast, spermatogonial stem cells with immune phenotype CD51—CD24+CD52+ had reduced selfrenewal capacity. Spermatogonial stem cells CD117—CD90+ and CD117+CD90+ as well as endothelial progenitors CD45—CD31+ derived from the testes of donor mice with metabolic disorders demonstrated high transplantation capacity in C57Bl/6 mouse testes damaged by cytostatic busulfan.
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