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- Title
Expression of a mutated phospholipase A<sub>2</sub> in transgenic Aedes fluviatilis mosquitoes impacts Plasmodium gallinaceum development.
- Authors
Rodrigues, F. G.; Santos, M. N.; de Carvalho, T. X. T.; Rocha, B. C.; Riehle, M. A.; Pimenta, P. F. P.; Abraham, E. G.; Jacobs-Lorena, M.; Alves de Brito, C. F.; Moreira, L. A.
- Abstract
The genetic manipulation of mosquito vectors is an alternative strategy in the fight against malaria. It was previously shown that bee venom phospholipase A2 (PLA2) inhibits ookinete invasion of the mosquito midgut although mosquito fitness was reduced. To maintain the PLA2 blocking ability without compromising mosquito biology, we mutated the protein-coding sequence to inactivate the enzyme while maintaining the protein's structure. DNA encoding the mutated PLA2 (mPLA2) was placed downstream of a mosquito midgut-specific promoter ( Anopheles gambiae peritrophin protein 1 promoter, AgPer1) and this construct used to transform Aedes fluviatilis mosquitoes. Four different transgenic lines were obtained and characterized and all lines significantly inhibited Plasmodium gallinaceum oocyst development (up to 68% fewer oocysts). No fitness cost was observed when this mosquito species expressed the mPLA2.
- Publication
Insect Molecular Biology, 2008, Vol 17, Issue 2, p175
- ISSN
0962-1075
- Publication type
Academic Journal
- DOI
10.1111/j.1365-2583.2008.00791.x