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3097740 
Journal Article 
Possibility of Using Rat Mesothelial Cells in Culture to Test Cytotoxicity, Clastogenicity, and Carcinogenicity of Asbestos Fibers 
Jaurand, MC; Bastie-Sigeac, I; Paterour, MJ; Renier, A; Bignon, J 
1983 
Yes 
Annals of the New York Academy of Sciences
ISSN: 0077-8923
EISSN: 1749-6632 
NIOSH/00192851 
407 
409-411 
The cytotoxicity, clastogenicity, and carcinogenicity of asbestos (1332214) fibers were examined in rat pleural mesothelial cell (PMC) cultures. PMCs from healthy rats were cultured in contact inhibited monolayers with a population doubling time (PDT) of about 30 hours and were able to metabolize benzo(a)pyrene (50328) (BaP). Cytoplasmic vacuolation and binucleated cell formation were induced by 5 to 10 micrograms per milliliter (microg/ml) of chrysotile (12001295) fibers. The PDT was increased with increasing chrysotile concentration, up to 20microg/ml, which caused a cessation of growth. Chrysotile fibers at 2microg/ml resulted in a slight but significant increase in the rate of sister chromatid exchanges. In a transformation assay using BaP as initiator, 5microg/ml of chrysotile used to treat PMCs over 11 passages of cells did not have a promoter effect. The authors conclude that rat PMCs in culture provide a useful model for the study of the interactions between asbestos and mesothelial cells. 
DCN-188271; Asbestos fibers; In vitro studies; Mesothelial cells; Cell cultures; Cytotoxic effects; Clastogens; Carcinogenesis; Dose response; Laboratory animals; 1332-21-4; 50-32-8; 12001-29-5 
OPPT REs
• OPPT_Asbestos, Part I: Chrysotile_F. Human Health
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