Monoclonal antibodies have been established against several of the cytokeratin polypeptides and are used to evaluate the pattern of cytokeratin expression in cells of epithelial origin.

Cytokeratin 18 (CK18) is an epithelial-specific cytokeratin that undergoes cleavage by caspases during apoptosis. Measurement of caspase-cleaved (CK18–Asp396) or total cytokeratin 18 (CK18 ...

Abbreviation: CK-19, cytokeratin-19. P < .001 for relapses of CK-19 mRNA positive versus negative after chemotherapy. P < .001 for deaths of CK-19 mRNA positive versus negative after chemotherapy. P = ...

Based on recent promising data that showed reverse transcriptase-polymerase chain reaction (RT-PCR) analyses for cytokeratin 19 (CK-19) expression in peripheral-blood or bone marrow samples to be a ...