MAPK3 and cancer: Mitogenic‐activated protein kinase (MAPK)/extracellular signal‐regulated kinase (ERK) signaling pathway has been found to play a role in some cancer therapies, as ERK1/2, one of MAPK/ERK kinases, was highly expressed in cervical cancer tissues 13, which also regulates many biological factors that affect types of miRNAs and their relevant machinery 14.