ArticleMethods in molecular biology (Clifton, N.J.)2024
Isolation of Mouse Germ Cells by FACS Using Hoechst 33342 and SYTO16 Double Staining.
Article in Methods in molecular biology (Clifton, N.J.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In the adult mouse testis, germ cells of various developmental cell states co-exist. FACS isolation of cells stained with the DNA dye Hoechst 33342 has been used for many years to sub-divide these cells based on their DNA content. This approach provides an efficient way to obtain broad categories of male germ cells: pre-meiotic spermatogonia, meiotic spermatocytes and post-meiotic spermatids. The addition of a red filter for Hoechst staining enables further sub-division of spermatocytes depending on sub-stages of meiotic prophase. However, separation of different stage spermatids using Hoechst staining alone is not possible. We recently reported a methodology, combining Hoechst staining with a second DNA dye (SYTO16) that enables the further separation of these cells into three sub-populations: round, early elongating, and late elongating spermatids (Gill et al., Cytometry A 101:529-536, 2022). This method makes it possible to obtain rapidly and simply pure fractions of male germ cells from multiple developental stages from the same animal.
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