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Korean J Parasitol. 1993 Jun;31(2):157-63.

[The effect of active immunization with Acanthamoeba culbertsoni in mice born to immune mother].

[Article in Korean]

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  • 1Department of Parasitology, College of Medicine, Yonsei University, Seoul, Korea.

Abstract

Acanthamoeba culbertsoni is a pathogenic free-living amoeba causing primary amoebic meningoencephalitis (PAME) in human and mouse. Several reports on the immune responses in mice with this amoebic infection have been published, but the effects of transferred passive immunity on the active immunization in offspring mice have not been demonstrated. This experiment was done to observe the effect of active immunization with Acanthamoeba culbertsoni in mice born to immune mothers. Acanthamoeba culbertsoni was cultured in the CGV medium axenically. Female BALB/c mice weighing about 20g were immunized through the intraperitoneal injection of Acanthamoeba culbertsoni trophozoites 1 x 10(6) each three times at the interval of one week. Offspring mice were immunized two times. The mice were inoculated intranasally with 1 x 10(4) trophozoites under secobarbital anesthesia. There was a statistical difference in mortality between the transferred immunity group and the active immunization group. Statistical differences were not demonstrated in antibody titer between both groups. But L3T4+ T cell/Ly2+ T cell ratio was increased in the transferred immunity group more than active immunization group of the offspring mice at the age of 5 weeks. There was no differences statistically in mortality between both groups. It was recognized that active immunization in offspring mice born to immune mother could modulate the immune status according to the time of immunization.

PMID:
8343458
[PubMed - indexed for MEDLINE]
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