Manipulation of host innate immune responses by the malaria parasite |
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Authors: | Coban Cevayir Ishii Ken J Horii Toshihiro Akira Shizuo |
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Institution: | Department of Host Defense, Research Institute for Microbial Diseases, Osaka University, Yamadaoka 3-1, Suita City, Osaka 565-0871, Japan. |
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Abstract: | It has long been known that malaria infection causes host immune modulation by various mechanisms. However, the role of Toll-like receptors (TLRs) in mediating innate immune responses to parasite-derived components during the blood stages of malaria has only recently been described. TLRs might have an important role in pathogenesis during malaria infection, as supported by genetic analyses in mice and humans. Moreover, recent findings revealed that sporozoites can partially differentiate in lymph nodes and that liver stages induce the formation of previously unknown parasite-filled vesicles (merosomes) that could function as immune escape machinery. Elucidation of the mechanisms by which the host innate immune system responds to, and/or is manipulated by, Plasmodium infection will hopefully lead to discoveries of potential targets that will ultimately prevent and/or intervene in malaria infection. |
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