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- W2894515119 abstract "Phenotypic plasticity and subsequent generation of intratumoral heterogeneity underly key traits in malignant melanoma such as drug resistance and metastasis. Melanoma plasticity promotes a switch between proliferative and invasive phenotypes characterized by different transcriptional programs of which MITF is a critical regulator. Here, we show that the acid ceramidase ASAH1, which controls sphingolipid metabolism, acted as a rheostat of the phenotypic switch in melanoma cells. Low ASAH1 expression was associated with an invasive behavior mediated by activation of the integrin alphavbeta5-FAK signaling cascade. In line with that, human melanoma biopsies revealed heterogeneous staining of ASAH1 and low ASAH1 expression at the melanoma invasive front. We also identified ASAH1 as a new target of MITF, thereby involving MITF in the regulation of sphingolipid metabolism. Together, our findings provide new cues to the mechanisms underlying the phenotypic plasticity of melanoma cells and identify new anti-metastatic targets." @default.
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- W2894515119 date "2018-09-25" @default.
- W2894515119 modified "2023-09-30" @default.
- W2894515119 title "Lysosomal acid ceramidase ASAH1 controls the transition between invasive and proliferative phenotype in melanoma cells" @default.
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- W2894515119 doi "https://doi.org/10.1038/s41388-018-0500-0" @default.
- W2894515119 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30254208" @default.
- W2894515119 hasPublicationYear "2018" @default.
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