[HTML][HTML] Melanoma cells revive an embryonic transcriptional network to dictate phenotypic heterogeneity

N Vandamme, G Berx - Frontiers in oncology, 2014 - frontiersin.org
N Vandamme, G Berx
Frontiers in oncology, 2014frontiersin.org
Compared to the overwhelming amount of literature describing how epithelial-to-
mesenchymal transition (EMT)-inducing transcription factors orchestrate cellular plasticity in
embryogenesis and epithelial cells, the functions of these factors in non-epithelial contexts,
such as melanoma, are less clear. Melanoma is an aggressive tumor arising from
melanocytes, endowed with unique features of cellular plasticity. The reversible phenotype-
switching between differentiated and invasive phenotypes is increasingly appreciated as a …
Compared to the overwhelming amount of literature describing how epithelial-to-mesenchymal transition (EMT)-inducing transcription factors orchestrate cellular plasticity in embryogenesis and epithelial cells, the functions of these factors in non-epithelial contexts, such as melanoma, are less clear. Melanoma is an aggressive tumor arising from melanocytes, endowed with unique features of cellular plasticity. The reversible phenotype-switching between differentiated and invasive phenotypes is increasingly appreciated as a mechanism accounting for heterogeneity in melanoma and is driven by oncogenic signaling and environmental cues. This phenotypic switch is coupled with an intriguing and somewhat counterintuitive signaling switch of EMT-inducing transcription factors. In contrast to carcinomas, different EMT-inducing transcription factors have antagonizing effects in melanoma. Balancing between these different EMT transcription factors is likely the key to successful metastatic spread of melanoma.
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