Cytogenetic studies of methotrexate drug on the peripheral blood samples from patients suffered of ulcerative colitis & ulcerative colitis developed to pseudopolyps &colon cancer

Abstract

The investigation was done on 43 samples of peripheral blood which drawn from patients suffered of chronic ulcerative colitis, 20 samples from patients of colon cancer, 10 samples from ulcerative colitis developed to pseudopolyps & 20 samples of healthy individuals. The samples were taken from female and male of different ages. The cytogenetic studies was done in order to define the damaging effects of the disease and the drug on the peripheral blood lymphocytes, these damages were manifested through the significant reduction in the blastogenic index, mitotic index, replication index, sister chromatid exchange, and mutation fraction after cells were grown in RPMI media supplemented with 10% of bovine serum, 10 microgram/ml of Budr, 0.3ml of PHA & different concentrations of drug (0.2,0.5,1,2,4,8) microgram/ml. The results indicated reduction in the blastomeric, mitotic, replication indices & mutation fraction to zero with high concentrations of the drug (1, 2, 4, 8) microgram / ml. Furthermore, the results showed presence of resistant cells with low concentration of drug (0.2, 0.5 microgram /ml) through measuring mutation fraction. Moreover, means of SCEs were increased in treated groups (patients & normal individuals) in comparison with untreated groups. Finally presence of mutated cells within low conc. of drug showed resistant to the drug in comparison with high conc. of drug which showed cytotoxic effect on the cells of the patients under investigations.