a human primary lung carcinoma cell line ( hpl-r1 ) established from the tumor biopsy of a lung cancer patient , lacking in cytochrome p1-450 [ aryl hydrocarbon ( benzo [ a ] pyrene ) hydroxylase ( ahh ) ] , was cloned and used to obtain variants deficient in the expression of thymidine-kinase via treatment with 5-bromo-2'-deoxyuridine , and selection for drug resistance phenotype .
C0024109
lung
C0024121
the tumor