Targeted therapy-resistant melanoma cells acquire transcriptomic similarities with human melanoblasts
The mechanisms of adaptive and acquired drug resistance in tumors are not completely understood. So far, gene amplifications or mutations, leading to the reactivation of the MAPK or PI3K pathways have been described. In this study, we used two different methods to generate human melanoblasts: (1) vi...
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| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
16 November 2018
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| In: |
Cancers
Year: 2018, Jahrgang: 10, Heft: 11 |
| ISSN: | 2072-6694 |
| DOI: | 10.3390/cancers10110451 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.3390/cancers10110451 Verlag: https://www.mdpi.com/2072-6694/10/11/451 
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| Verfasserangaben: | Lionel Larribère, Silke Kuphal, Christos Sachpekidis, Sachindra, Laura Hüser, Anja Bosserhoff and Jochen Utikal |
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| 520 | |a The mechanisms of adaptive and acquired drug resistance in tumors are not completely understood. So far, gene amplifications or mutations, leading to the reactivation of the MAPK or PI3K pathways have been described. In this study, we used two different methods to generate human melanoblasts: (1) via differentiation from induced pluripotent stem cells (iPSCs) and (2) via dedifferentiation from melanocytes. The melanoblast transcriptomes were then compared to the transcriptome of MAPK inhibitor-resistant melanoma cells. We observed that the expression of genes associated with cell cycle control, DNA damage control, metabolism, and cancer was altered in both melanoblast populations and in both adaptive and acquired resistant melanoma samples, compared to drug-sensitive samples. However, genes involved in antigen presentation and cellular movement were only regulated in the melanoblast populations and in the acquired resistant melanoma samples, compared to the drug-sensitive samples. Moreover, melanocyte-derived melanoblasts and adaptive resistant melanoma samples were characterized by different expression levels of certain transcription factors or genes involved in the CDK5 pathway. In conclusion, we show here that in vitro models of human melanoblasts are very important tools to comprehend the expression profiles of drug-resistant melanoma. | ||
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