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Effect of heat stable hemolysin from pseudomonas aeruginosa on toxoplasma gondii and host cells


Jikeikai Medical Journal 34(3): 281-288
Effect of heat stable hemolysin from pseudomonas aeruginosa on toxoplasma gondii and host cells
Peritoneal exudate containing Toxoplasma tachyzoites and host cells were treated with various concentrations of heat-stable hemolysin from Pseudomonas aeruginosa and different sensitivities of those Toxoplasma and host cells to the hemolysin were studied. Pseudomonas hemolysin could solubilize preferentially the host cells but streptolysin S, one of the most powerful bacterial hemolysins, could not. The action of Pseudomonas hemolysin is considered to be detergent-like, but there existed marked difference in viability of the tachyzoites treated with hemolysin and Triton X-100. The latter decreased the viability drastically while the former did so gradually. The hemolysin solubilized brain tissue without damage to Toxoplasma cysts when treated for a short time. Pseudomonas hemolysin may be useful for recovery of viable T. gondii parasite from tissues.


Accession: 005243035



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