Effect of Listeria monocytogenes lipids on the immunity of mice against Candida albicans, Cryptococcus neoformans and Trichomonas vaginalis.

The effect of Listeria monocytogenes lipids (Lm lipids) on immunity against Candida albicans, Cryptococcus neoformans and Trichomonas vaginalis was studied in mice. The administration of Lm lipids did not affect significantly the course of T. vaginalis infection. On the other hand, single Lm lipids injection markedly decreased the mortality rate of mice with mycotic infections, and significantly accelerated the elimination of fungal cells from liver, spleen and blood circulation of animals. It is suggested that enhanced resistance of mice conferred by Lm lipids may be related to observed increase in activity of macrophages. The study demonstrated a very low toxicity of Lm lipids preparation.