Meiotic prophase I disruption as a strategy for non-hormonal male contraception using small-molecule inhibitor JQ1

The small-molecule bromodomain inhibitor JQ1 transiently suppresses spermatogenesis by targeting BRDT, a testis-specific transcriptional regulator required for meiotic and post-meiotic differentiation. To define the transcriptional and cellular consequences of JQ1 exposure and recovery, we performed single-cell RNA sequencing (scRNA-seq) of mouse testes collected from untreated controls, JQ1-treated males, and recovery cohorts following treatment withdrawal. This dataset includes 15 libraries representing all experimental groups and captures germ cell and somatic populations spanning spermatogonial, meiotic, and spermiogenic stages. The data provide a comprehensive transcriptional atlas of JQ1-induced meiotic disruption and subsequent restoration of spermatogenesis, supporting mechanistic and contraceptive studies of BRDT inhibition.