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Infect Immun. 1975 October; 12(4): 714-721

Biological activities of endotoxins detoxified by alkylation.

L Chedid, F Audibert, C Bona, C Damais, F Parant and M Parant

ABSTRACT

It has been previously observed that lipopolysaccharides can be detoxified by alkylation and yet retain their adjuvant activity. Our present findings confirm these results and show, moreover, that these derivatives did not lose their capacity to protect mice against lethal irradiation and lost only partially their ability to interrupt pregnancy or to induce blast transformation of murine B-lymphocytes. However, in contrast with lipopolysaccharides, these alkylated preparations did not enhance the nonspecific resistance of mice to a bacterial infection. The various bilogical functions of endotoxins can therefore be separated and are not uniformly related to their toxicity.

Infect Immun. 1975 October; 12(4): 714-721






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