Abstract
The toxicity of the chemical warfare agent sulphur mustard, (bis-(2-chloroethyl)sulphide, HD), was examined in adult rat lung organ cultures. Assessment of HD-induced damage by the MTT cytotoxicity assay indicated that the median lethal concentration (LC 50) of HD in these cultures was reproducible, and in the μM range. Damage to the lung slices was expressed only after a latent period of 48 h and did not increase significantly with longer expression times. Histopathological examination of HD-treated lung cultures showed that the structural changes in the lung tissue paralleled the toxicity measured biochemically, and were also similar to the damage found in animals and man exposed to HD in vivo. This in vitro model offers a useful tool with which to study the toxicity and mechanism of action of sulphur mustard.
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