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National Academy of Sciences, Proceedings of the National Academy of Sciences, 14(114), 2017

DOI: 10.1073/pnas.1618297114

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Three-dimensional culture system identifies a new mode of cetuximab resistance and disease-relevant genes in colorectal cancer

This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Significance By culturing a human colorectal cancer (CRC) cell line (HCA-7) in 3D, we have generated two cell lines (CC and SC) with distinct morphological, genetic, biochemical, and functional properties. Using this 3D system, we have discovered that increased tyrosine phosphorylation of MET and RON results in cetuximab resistance in the SC cell line that can be overcome by addition of the dual MET/RON tyrosine kinase inhibitor, crizotinib. We have also identified that increased epithelial, but not stromal, versican staining correlates with reduced survival in a clinically annotated CRC tissue microarray.