Association of prostate cancer with rapid N-acetyltransferase 1 (NAT1*10) in combination with slow N-acetyltransferase 2 acetylator genotypes in a pilot case-control study.

N-acetyltransferase-1 (NAT1) and N-acetyltransferase-2 (NAT2) are important in the metabolism of aromatic and heterocyclic amine carcinogens that induce prostate tumors in the rat. We investigated the association of genetic polymorphisms in NAT1 and NAT2, alone and in combination, with human prostate cancer. Incident prostate cancer cases and controls in a hospital-based case-control study were frequency-matched for age, race, and referral pattern.

Effect of nucleotide substitutions in N-acetyltransferase-1 on N-acetylation (deactivation) and O-acetylation (activation) of arylamine carcinogens: implications for cancer predisposition.

Genetic polymorphism in N-acetyltransferase-1 (NAT1) is associated with increased risk of various cancers, but epidemiological investigations are compromised by poor understanding of the relationship between NAT1 genotype and phenotype. Human reference NAT1*4 and 12 known human NAT1 allelic variants possessing nucleotide polymorphisms in the NAT1 coding region were cloned and expressed in yeast (Schizosaccharomyces pombe). Large reductions in the N-acetylation of 4-aminobiphenyl and the O-acetylation of N-hydroxy-2-aminofluorene were observed for recombinant NAT1 allozymes encoded by NAT1*14B, NAT1*15, NAT1*17, NAT1*19, and NAT1*22.