Resveratrol can induce differentiating phenotypes in canine oral mucosal melanoma cells

The Journal of veterinary medical science(2023)

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摘要
This report described the differentiation induction of canine oral mucosal melanoma (OMM) cells by resveratrol. Exposure of canine OMM cells to resveratrol (maximum dose: 50 & mu;M and treatment period: 72 hr) induced differentiating features like melanocytes, and enhanced chemosensitivity against cisplatin, but alone had no influence on cell viability. Additionally, resveratrol significantly enhanced mRNA expression of key melanoma differentiation markers such as microphthalmia-associated transcription factor (MITF). Of several inhibitors against mitogenactivated protein kinase subtypes, only the c-Jun N-terminal kinase (JNK) inhibitor, SP600125, induced melanocyte-like morphological change and enhanced MITF mRNA expression. Furthermore, resveratrol also suppressed JNK activation in OMM cells by approximately 33%. Overall, these findings suggest that resveratrol induces differentiation in canine OMM cells, due to the inhibition of JNK signaling.
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关键词
canine oral mucosal melanoma cell, cell viability, c-Jun N-terminal kinase, microphthalmia-associated transcription factor, resveratrol
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