Stage-specific and common antigens of Brugia malayi identified with monoclonal antibodies.

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Abstract
To identify parasite antigens that trigger protective, pathogenic, and allergic immune responses during filarial infections, we generated a series of monoclonal antibodies to infective larvae, adult worms, and microfilariae of Brugia malayi, a human pathogen. Quantitative and qualitative analysis of the reaction patterns of these monoclonal antibodies indicates the existence of stage-specific antigens of B. malayi, as well as of antigens shared by different stages of this parasite and by other related and unrelated helminths. These antibodies should provide invaluable tools for the analysis of host-parasite interactions in filariasis at the molecular level.