Transcriptomic analysis of trametinib-resistant HCT116 colorectal carcinoma cells compared to the parental control cells

HCT116 cells were treated with with increasing concentrations of trametinib over 2 months. Drug-resistant clones emerged and were cultured in the presence of 30 nmol/L trametinib. These cells exhibited a greater than 10-fold increase in the GI50 for trametinib compared to the parental cell line. RNA-seq of the resistant clone HCT116_R4 versus the parental cells identified differentially expressed genes potentially involved in resistance. Overall design: For the parental and resistant clone, 3 replicates each were analysed by RNA-seq.

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Wagner S, Vlachogiannis G, De Haven Brandon A, Valenti M, Box G, Jenkins L, Mancusi C, Self A, Manodoro F, Assiotis I, Robinson P, Chauhan R, Rust AG, Matthews N, Eason K, Khan K, Starling N, Cunningham D, Sadanandam A, Isacke CM, Kirkin V, Valeri N, Whittaker SR