MMP12 and infection: The female mice exhibited higher expression levels of CDK1, and CDKN1A (KO, 1A0), CDK2 (KO), MARCO (KO, 1A0, 6A2, and 6A4), MMP12 (KO, 6A4), MYC (KO), STAT5a/b (KO, 1A3, and 6A2), TAP1 (KO, 6A4), TAP2 (KO), CDKN1B, and CTNNB1 (1A0, 6A2, and 6A4) and CCND1 (1A3) compared to males in response to infection (Figure 8).