Skip to Content
Discovering the causes of cancer and the means of prevention

Publications Search - Abstract View

Title: A Transcriptionally Inactive ATF2 Variant Drives Melanomagenesis.
Authors: Claps G,  Cheli Y,  Zhang T,  Scortegagna M,  Lau E,  Kim H,  Qi J,  Li JL,  James B,  Dzung A,  Levesque MP,  Dummer R,  Hayward NK,  Bosenberg M,  Brown KM,  Ronai ZA
Journal: Cell Rep
Date: 2016 May 31
Branches: LTG
PubMed ID: 27210757
PMC ID: PMC4889472
Abstract: Melanoma is one of the most lethal cutaneous malignancies, characterized by chemoresistance and a striking propensity to metastasize. The transcription factor ATF2 elicits oncogenic activities in melanoma, and its inhibition attenuates melanoma development. Here, we show that expression of a transcriptionally inactive form of Atf2 (Atf2(Δ8,9)) promotes development of melanoma in mouse models. Atf2(Δ8,9)-driven tumors show enhanced pigmentation, immune infiltration, and metastatic propensity. Similar to mouse Atf2(Δ8,9), we have identified a transcriptionally inactive human ATF2 splice variant 5 (ATF2(SV5)) that enhances the growth and migration capacity of cultured melanoma cells and immortalized melanocytes. ATF2(SV5) expression is elevated in human melanoma specimens and is associated with poor prognosis. These findings point to an oncogenic function for ATF2 in melanoma development that appears to be independent of its transcriptional activity.