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Establishment of a pure culture of immature Sertoli cells by PDGFRA staining and cell sorting

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Sertoli cells are key somatic cells in the testis that form seminiferous tubules and support spermatogenesis. The isolation of pure Sertoli cells is important for their study. However, it is… Click to show full abstract

Sertoli cells are key somatic cells in the testis that form seminiferous tubules and support spermatogenesis. The isolation of pure Sertoli cells is important for their study. However, it is a difficult effort because of the close association of Sertoli cells with peritubular myoid cells surrounding seminiferous tubules. Here, we propose a novel approach to the establishment of a pure Sertoli cell culture from immature mouse testes. It is based on the staining of testicular cells for platelet‐derived growth factor receptor alpha (PDGFRA), followed by fluorescence‐activated cell sorting and culturing of a PDGFRA‐negative cell population. Cells positive for a Sertoli cell marker WT1 accounted for more than 96% of cells in cultures from 6 to 12 days postpartum (dpp) mice. The numbers of peritubular myoid cells identified by ACTA2 staining did not exceed 4%. Cells in the cultures were also positive for Sertoli cell proteins SOX9 and DMRT1. Amh and Hsd17b3 expression decreased and Ar and Gata1 expression increased in 12 dpp cultures compared to 6 dpp cultures, which suggests that cultured Sertoli cells at least partially retained their differentiation status. This method can be employed in various applications including the analysis of differential gene expression and functional studies.

Keywords: sertoli; cell; establishment pure; cell sorting; sertoli cells; culture immature

Journal Title: Molecular Reproduction and Development
Year Published: 2022

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