Figure 5
From: Clinical meaning of age-related expression of fecal cytokeratin 19 in colorectal malignancy
Western blot analysis of endogenous CK19 expression in colonic tumor specimens. Six colonic tumor specimens from one patient (01) at Dukes' stage B, three (02-04) at stage C, and two (05 and 06) at sage D were all under the age of 60 years. Two of patients (patients 02 and 03) presented with a monotypic band at 40 KDa (CK19) and others produced heterotypic bands at 40 KDa and ~37 KDa. The molecular weight of Actin was 43 KDa. Antibodies, mouse anti-human CK19 antibody or rabbit anti-human Actin antibody. P, HT-29 cells served as the positive control.