Regulation of the immune response in lymphatic filariasis : perspectives on acute and chronic infection with Wuchereria bancrofti in South India.

Thomas B Nutman; Kumaraswami, V.

Parasite Immunology, 2001; 23; 389-399.

Delineating the immune responses in lymphatic filariasis has been complicated not only by the rapidly expanding knowledge of new immunological mediators and effortors, but also by new methodologies (in particular, circulating filarial antigen detection) for defining and categorizing filarial-infected individuals. By using assays for circulating antigen in the sera collected as part of the many immunological studies performed on individuals in a Wuchereria bancrofti -endemic region of South India, we have attempted to explore the influence of patency on the antigen-driven proliferative and cytokine responses seen in peripheral blood mononuclear cells of individuals with varying clinical manifestations of lymphatic filarial infection. Moreover, we have provided perspectives on the differences between acute and chronic infection with W. bancrofti and suggested mechanisms that may underly the modulation of the immune response as patency occurs.

Key words : lymphatic filariasis, Wuchereria bancrofti , tolerance, circulating filarial antigen, cytokine, tropical pulmonary eosinophilia

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