DUSP5 and cancer: MAP kinasephosphatases (MKPs) constitute a family of dual-specificity phosphatases (DUSP)that inactivate the MAPKs by dephosphorylating both the phospho-Thr andphospho-Tyr regulatory residues14, 36, and have been related tothe development of many types of cancer and to the outcome of differentchemotherapeutic treatments40.