In the GCs of patients with PCOS, increased expression of linc00173 [99], lncRNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) [157], lncRNA SNHG5 [109], miR-4433a-3p [83], miR-27a-3p [84], miR-194 [95], miR-let-7d-3p [107] has been observed, which contributes to the inhibition of proliferation and/or the promotion of apoptosis. The gene discussed is MALAT1; the disease is polycystic ovary syndrome.