The BC analysis on this cell-type-specific WGCN discovered some bridge genes between the spermatogenesis main stages such as DNAJC5B, C1orf194, HSP90AB1, BST2, EEF1A1, CRISP2, PTMS, NFKBIA, CDKN3, and HLA-DRA. This evidence concerns the gene BST2 and breast cancer.