Please note that we have stopped the regular imports of Gene Expression Omnibus (GEO) data into ArrayExpress. This may not be the latest version of this experiment.

E-GEOD-42735 - Genome-wide transcriptome profiling of SK-Mel-28, UACC-62 and HCT-116 cells stably expressing scrambled shRNA and RAB7 shRNA

Released on 20 April 2014, last updated on 1 May 2015
Homo sapiens
Samples (18)
Protocols (4)
Purpose: Assess the transcriptional changes induced upon RAB7 knock-down in melanoma (SK-Mel-28 and UACC-62) and in colon cancer (HCT-116) cell lines. Methods: mRNA profiles of tumor cell lines (SK-Mel-28, UACC-62, HCT-116) stably expressing scrambled shRNA or RAB7 shRNA (harvested at day 3 after lentiviral infection) were generated by deep sequencing, using three biological replicates per condition. The sequence reads that passed quality filters were analyzed with TopHat and Cufflinks. Validation of induced / silenced genes was performed by western blot. Results show a differential impact of RAB7 expression in the transcriptomic profile of melanoma vs non-melanoma cell lines, and support a lineage-specific role of this small GTPase in melanoma. Examination of the mRNA profiles RAB7-depleted vs wild type cells, performed in parallel in 3 different tumor cell lines (Melanomas: SK-Mel-28 and UACC-62, Non-melanoma: HCT-116) harvested at day 3 after lentiviral infection.
Experiment type
RNA-seq of coding RNA 
Maria S Soengas <>, D Alonso-Curbelo, M S Soengas
RAB7 controls melanoma progression by exploiting a lineage-specific wiring of the endolysosomal pathway. Alonso-Curbelo D, Riveiro-Falkenbach E, Pérez-Guijarro E, Cifdaloz M, Karras P, Osterloh L, Megías D, Cañón E, Calvo TG, Olmeda D, Gómez-López G, Graña O, Sánchez-Arévalo Lobo VJ, Pisano DG, Wang HW, Ortiz-Romero P, Tormo D, Hoek K, Rodríguez-Peralto JL, Joyce JA, Soengas MS.
Exp. designProtocolsVariablesProcessedSeq. reads
Investigation descriptionE-GEOD-42735.idf.txt
Sample and data relationshipE-GEOD-42735.sdrf.txt
Processed data (1)