The role of CIP2A in cancer: A review and update.
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Cancerous inhibitor of protein phosphatase 2A (CIP2A) is a characterized human oncoprotein that is able to promote cancer cells proliferation, anchorage-independent cell growth and resistance to apoptosis. CIP2A inactivates protein phosphatase 2A (PP2A) which down-regulates Akt (Protein Kinase B) phosphorylation and stabilizes c-Myc (c-Myc oncogene product) in cancer cells. CIP2A has been studied in the most of human malignancies. Here we discuss the role of CIP2A in cancer and give a summary of CIP2A expression in malignancies. Also, where available we indicated the association of CIP2A with the stage of cancers and patients prognosis, explain its localization and the possibility of targeting CIP2A in different cancers.