Open AccessTOXICOLOGY STUDIES OF LEWISITE AND SULFUR MUSTARD AGENTS:GENETIC TOXICITY OF LEWISITE (L) IN CHINESE HAMSTER OVARY CELLS
Author(s) -
R. F. Jostes,
Sasser Lb,
R. J. Rausch
Publication year - 1989
Language(s) - English
Resource type - Reports
DOI - 10.2172/929775
Subject(s) - clastogen , chinese hamster ovary cell , cytotoxic t cell , hypoxanthine guanine phosphoribosyltransferase , sister chromatid exchange , toxicity , genotoxicity , chemistry , mutagen , carcinogen , toxicology , genetics , microbiology and biotechnology , biology , cell culture , in vitro , gene , mutant , organic chemistry
The cytotoxic clastogenic and mutagenic effects of the arsenic containing vesicant, Lewisite (L) [dichloro(2-chlorovinyl) arsine], have been investigated using Chinese hamster ovary cells. One hour exposures to Lewisite were cytotoxic in uM amounts. The cell survival response yields a D37 of 0.6 uM and an extrapolation number of 2.5. The mutagenic response at the hypoxantnine-guanine phosporibosyl transferase (HGPRT) locus was sporadic and not significantly greater than control values when cells were exposed over a range of 0.125 to2.0 uM. Sister chromatid exchange (SCE) induction, a measure of chromosomal rearrangement, was weakly positive over a range of 0.25 to 1.0 uM but the values were not significantly greater than the control response. Chromosomal aberrations were induced at 0.75 and 1.0 UMin one experiment and 0.5 and 0.75 uM in another experiment. The Induced values were significantly greater than the control values. Lewisite appears to be cytotoxic and clastogenic in our investigations but SCE and mutation at the HGPRT locus are not significantly greater than control values. Lewisita toxicity was in some ways similar to radiomimetic chemicals such as bleomycin