HNRNPK and acute promyelocytic leukemia: LC/MS-MS analysis detected five subfamilies of hnRNPs: hnRNP A2/B1, hnRNP C (C1/C2), hnRNP H, hnRNP K, and hnRNP L. According to the study results, anticancer activity was regulated by hnRNP C induced by APL in oral cancer.