Cytokeratin gene expression in hepatoma hybrid cells: evidence for regulation in cis.


The genes encoding intermediate filament (IF) proteins are expressed in a cell-lineage restricted fashion. To analyze the regulation of such genes, we studied cytokeratin and vimentin expression in hepatoma x fibroblast hybrids. These hybrids continued to express both hepatoma cell-derived cytokeratins and fibroblast-specific vimentin. Furthermore, the… (More)


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