Abstract:
:2,2'-Dichlorodiethyl sulfide (sulfur mustard, HD, 1,1'-thiobis [2-chloroethane]) is a potent vesicant which can cause severe lesions to skin, lung, and eyes. Due to the high number of debilitating exposures during the Iran-Iraq war to the alkylating agent, HD, there is an increased interest in its mechanism of action and in the development of therapeutic interventions to prevent HD-induced lesions. Recently we reported an in vitro assay using human mononuclear leukocytes for studying HD-induced pathology. To study the time dependence of HD-induced mononuclear leukocyte cell death and to determine the parameters of any potential therapeutic intervention, an assay was developed and automated using a flow cytometer to measure propidium iodide exclusion by mononuclear cells. This assay demonstrated that HD-initiated cell death did not begin before 4 h post-exposure, but after 4 h proceeded in a concentration-dependent manner. In this assay, both niacinamide and 3-aminobenzamide, poly(ADP-ribose) polymerase inhibitors, were shown to be effective in blocking HD-induced cell death when added to the cultures during the first 4 h post-exposure. They offered partial protection when added between 6 and 12 h and were of no benefit when added after 12 h post-exposure.
journal_name
Cell Biol Toxicoljournal_title
Cell biology and toxicologyauthors
Meier HLdoi
10.1007/BF00148168subject
Has Abstractpub_date
1996-06-01 00:00:00pages
147-53issue
3eissn
0742-2091issn
1573-6822journal_volume
12pub_type
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