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Related Experiment Videos

Specific lymphocyte transformation in murine malaria

J Golenser, D T Spira, J P Verhave

    Zeitschrift Fur Parasitenkunde (Berlin, Germany)
    |July 27, 1976
    PubMed
    Summary

    Immune spleen cells from Plasmodium berghei infected rats and mice showed specific in vitro responses to malaria antigens. Higher parasitaemia during infection correlated with stronger cellular immune reactions.

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    Area of Science:

    • Immunology
    • Parasitology
    • Cellular Biology

    Background:

    • Plasmodium berghei infection in rodents is a model for malaria.
    • Cellular immunity plays a crucial role in controlling parasitic infections.
    • Understanding immune responses to malaria antigens is vital for vaccine development.

    Purpose of the Study:

    • To investigate the in vitro cellular immune response of convalescent rodents to Plasmodium berghei antigens.
    • To determine the correlation between in vivo infection levels and in vitro cellular reactivity.

    Main Methods:

    • Lymphoblast transformation tests were conducted on spleen cells from convalescent rats and mice.
    • Cells were exposed to specific Plasmodium berghei antigen and control antigens from non-infected red blood cells (RBC).
    • Antigen concentration and exposure time were varied to assess their impact on cellular response.

    Main Results:

    • Spleen cells from immune animals demonstrated a specific in vitro response to Plasmodium berghei antigen.
    • No significant reaction was observed with control antigens.
    • The in vitro cellular response was dose- and time-dependent on antigen exposure.
    • A positive correlation was found between the peak parasitaemia during acute infection and the magnitude of the in vitro response.

    Conclusions:

    • Convalescent rodents possess a specific cellular immunity against Plasmodium berghei antigens.
    • In vitro lymphoblast transformation assays can effectively measure this specific cellular immunity.
    • The level of parasitaemia during infection is indicative of the strength of the subsequent in vitro cellular immune response.

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