There are 21 downstream target genes of miR-637, including 3 genes related to cell growth (AKT1, leukemia inhibitory factor (LIF), and NUPR1), 2 genes related to cell cycle (HEMGN and LIF), 15 genes related to cell proliferation, 11 genes related to apoptosis, 1 gene related to EMT (NUPR1), and 15 genes related to cancer cell invasion and metastasis. The gene discussed is HEMGN; the disease is cancer.