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  • Title: Human phagocyte respiratory burst by Mycobacterium bovis BCG and M. leprae: functional activation by BCG is mediated by complement and its receptors on monocytes.
    Author: Launois P, Niang M, Dieye A, Sarthou JL, Rivier F, Millan J.
    Journal: Int J Lepr Other Mycobact Dis; 1992 Jun; 60(2):225-33. PubMed ID: 1522364.
    Abstract:
    We have measured the role of serum components on two parameters of the phagocytosis reaction: a) the chemiluminescence (CL) response associated with the oxidative respiratory burst in response to Mycobacterium bovis BCG and M. leprae, and b) the uptake of these two mycobacteria by healthy human monocytes. Pre-incubations of fresh or heat-inactivated serum or serum containing EGTA or EDTA indicate that these two mycobacteria activate the alternative complement pathway. Monoclonal antibodies against CR1 and CR3 inhibit the responses of M. bovis BCG and M. leprae, demonstrating that complement receptors mediate the phagocytosis of these two mycobacteria. Thus, complement and its receptors on the surface of the monocytes (CR1 and CR3) are important in the functional activation of phagocytosis of M. bovis BCG and M. leprae.
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