Open AccessMetabolism of Inorganic Arsenic in Mice Lacking Genes Encoding GST-P, GST-M, and GST-T
Author(s) -
Christelle Douillet,
Beverly H. Koller,
Miroslav Stýblo
Publication year - 2020
Publication title -
chemical research in toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.031
H-Index - 156
eISSN - 1520-5010
pISSN - 0893-228X
DOI - 10.1021/acs.chemrestox.0c00273
Subject(s) - arsenic , urine , metabolism , glutathione , gene , chemistry , genotype , biochemistry , biology , enzyme , organic chemistry
To investigate the role of glutathione transferases (GSTs) in the metabolism of inorganic arsenic (iAs), we compared the disposition of iAs and its metabolites in wild-type mice and mice lacking genes encoding GST-P, -M and -T after exposure to 100 ppb iAs in drinking water. We found no differences between the two genotypes in the concentrations of total arsenic or arsenic species in urine, liver, and kidneys. No genotype-dependent differences were found in proportions of arsenicals in the tissues, and only small differences were observed in the urine. Thus, under these conditions, GST-P, -M and -T did not play a significant role in iAs metabolism in mice.