Journal
CANCER TREATMENT REVIEWS
Volume 49, Issue -, Pages 1-12Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ctrv.2016.06.009
Keywords
beta-Catenin; Melanoma; Tumour progression; Therapy; Prognosis
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WNT signaling regulates embryonic development and tissue homeostasis in the adult stage. Evolutionarily, activation of the WNT pathway is triggered by a large family of cytokines and activates a broad spectrum of downstream targets through two independent branches mediated by beta-catenin (defined as canonical pathway) or PLC and small GTPase (defined as non-canonical pathway), respectively. Recent studies revealed the crucial role of WNT in the maintenance of cell metabolism and sternness as well as its deregulation in tumourigenesis and malignant transformation through oncogenic reprogramming, which contributes to cancer cell proliferation and differentiation, survival, stress response and resistance. In addition, multiple functional mutations discovered in human tumours have been reported to cause malignancy, indicating this pathway as a novel therapeutic target in oncology. Notably, emerging data highlights its involvement in the crosstalk between immune and cancer cells. However, contradictory effects have been also observed in different pre-clinical models when strategic(???) inhibitors are tested. In this review, we address the multifaceted regulatory mechanisms of WNT signaling in cancer, with a particular focus on current melanoma therapy, which has witnessed dramatic improvement in the last five years. (C) 2016 Elsevier Ltd. All rights reserved.
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