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- W2885873542 abstract "The clinical management of malignant melanoma remains a challenge because these tumors are intrinsically aggressive and prone to therapeutic resistance. MicroRNA (miR)-211 is an emerging melanoma oncogene. Melanoma metabolism adapts to promote survival, including in response to BRAFV600E inhibition, but how miR-211 participates in this process is unknown. Here, we generated miR-211 loss-of-function cell lines using CRISPR/Cas9 technology and show that miR-211 loss slowed growth and invasion in vitro, inhibited phosphoinositol-3-kinase signaling, and inhibited melanoma growth in vivo. miR-211 deficiency rendered melanoma cells metabolically vulnerable by attenuating mitochondrial respiration and tricarboxylic acid cycling. miR-211 was up-regulated by the BRAF inhibitor vemurafenib and in vemurafenib-resistant melanoma cells, with miR-211 loss rendering them more drug sensitive. miR-211 loss represents a “two-pronged” anticancer strategy by inhibiting both critical growth-promoting cell signaling pathways and rendering cells metabolically vulnerable, making it an extremely attractive and specific candidate combinatorial therapeutic target in melanoma. The clinical management of malignant melanoma remains a challenge because these tumors are intrinsically aggressive and prone to therapeutic resistance. MicroRNA (miR)-211 is an emerging melanoma oncogene. Melanoma metabolism adapts to promote survival, including in response to BRAFV600E inhibition, but how miR-211 participates in this process is unknown. Here, we generated miR-211 loss-of-function cell lines using CRISPR/Cas9 technology and show that miR-211 loss slowed growth and invasion in vitro, inhibited phosphoinositol-3-kinase signaling, and inhibited melanoma growth in vivo. miR-211 deficiency rendered melanoma cells metabolically vulnerable by attenuating mitochondrial respiration and tricarboxylic acid cycling. miR-211 was up-regulated by the BRAF inhibitor vemurafenib and in vemurafenib-resistant melanoma cells, with miR-211 loss rendering them more drug sensitive. miR-211 loss represents a “two-pronged” anticancer strategy by inhibiting both critical growth-promoting cell signaling pathways and rendering cells metabolically vulnerable, making it an extremely attractive and specific candidate combinatorial therapeutic target in melanoma." @default.
- W2885873542 created "2018-08-22" @default.
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- W2885873542 date "2019-01-01" @default.
- W2885873542 modified "2023-10-15" @default.
- W2885873542 title "MicroRNA-211 Loss Promotes Metabolic Vulnerability and BRAF Inhibitor Sensitivity in Melanoma" @default.
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- W2885873542 doi "https://doi.org/10.1016/j.jid.2018.06.189" @default.
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- W2885873542 hasPublicationYear "2019" @default.
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