Neutrophils in Infectious Diseases

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Host defense to intracellular pathogens depends upon both innate and adaptive cell-mediated immune responses. Polymorphonuclear neutrophil leukocytes which belong to the innate immune system are the ...
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Role of Neutrophils in the Early Shaping of the Leishmania major Specific Immune Response in Experimental Murine Cutaneous Leish

Pp. 49-58 (10)

Angelo Martino, Edgar Badell, Nathalie Winter, Mélanie Charmoy, Geneviève Milon and Fabienne Tacchini-Cottier

Abstract

The development of a protective immune response to microorganisms involves complex interactions between the host and the pathogen. The murine model of infection with Leishmania major (L. major) allows the study of the factors leading to the development of a protective immune response. Following infection with the protozoan parasite L. major, most strains of mice heal their lesions, while a few fail to control infection, both processes linked to the development of specific T helper subsets. The early events occurring during the first days following parasite inoculation are thought to be critical in the development of the Leishmania-specific immune response. Neutrophils are the first cells arriving massively to the site of infection, and recent evidence points to their role as organizers of the immune response, yet their specific role in this process remains elusive. Through interactions with cells present at the parasite inoculation site, and possibly within the draining lymph nodes, neutrophils could have an impact not only on the recruitment of inflammatory cells but also on the activation of local as well as newly migrated cells that will be crucial in shaping the Leishmania-specific immune response.

Affiliation:

INRA, U1282, Infectiologie Animale & Santé Publique, 37380, Nouzilly, France, WHO Immunology Research and Training Center, Department of Biochemistry, University of Lausanne, Boveresses 155, 1066 Epalinges, Switzerland