Unknown,Transcriptomics,Genomics,Proteomics

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Transcriptional profiling of PKH26-labeled colorectal cancer stem cells

ABSTRACT: Quiescent cancer cells responsible for tumor chemoresistance and relapse have been identified in several tumors but in colorectal cancer (CRC) they remain largely undefined. By using a proliferation-sensitive dye, we isolated and characterized a rare subpopulation of cells from colorectal tumors which, upon gene expression, proteomic and functional studies, revealed combined features of stemness, drug resistance and epithelial-to-mesenchymal transition (EMT). Altogether, this work reveals a link between cell quiescence, EMT and therapy resistance relevant for targeting drug-resistant populations in CRC.

ORGANISM(S): Homo sapiens

SUBMITTER: Alessandro Bruselles 

PROVIDER: E-MTAB-12041 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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<h4>Background</h4>Quiescent/slow cycling cells have been identified in several tumors and correlated with therapy resistance. However, the features of chemoresistant populations and the molecular factors linking quiescence to chemoresistance are largely unknown.<h4>Methods</h4>A population of chemoresistant quiescent/slow cycling cells was isolated through PKH26 staining (which allows to separate cells on the basis of their proliferation rate) from colorectal cancer (CRC) xenografts and subject  ...[more]

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