| Literature DB >> 22282475 |
Giselle de Almeida Oliveira1, Joshua Lieberman, Carolina Barillas-Mury.
Abstract
Plasmodium ookinetes traverse midgut epithelial cells before they encounter the complement system in the mosquito hemolymph. We identified a heme peroxidase (HPX2) and NADPH oxidase 5 (NOX5) as critical mediators of midgut epithelial nitration and antiplasmodial immunity that enhance nitric oxide toxicity in Anopheles gambiae. We show that the two immune mechanisms that target ookinetes-epithelial nitration and thioester-containing protein 1 (TEP1)-mediated lysis-work sequentially, and we propose that epithelial nitration works as an opsonization-like system that promotes activation of the mosquito complement cascade.Entities:
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Year: 2012 PMID: 22282475 PMCID: PMC3444286 DOI: 10.1126/science.1209678
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728