Virus-expressed, recombinant single-chain antibody blocks sporozoite infection of salivary glands in Plasmodium gallinaceum-infected Aedes aegypti
| Autor: | E.M.M. Rocha, Ken E. Olson, Anthony A. James, Kevin M. Myles, Antoniana U. Krettli, M. de L. Capurro, Brenda T. Beerntsen, Judy Coleman |
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| Rok vydání: | 2000 |
| Předmět: |
Sindbis virus
Genetic Vectors Immunoblotting DNA Recombinant Antibodies Protozoan Plasmodium gallinaceum Aedes aegypti Recombinant virus Salivary Glands Mice Aedes Virology parasitic diseases medicine Animals Hybridomas Salivary gland biology fungi Antibodies Monoclonal biology.organism_classification Insect Vectors Circumsporozoite protein Infectious Diseases medicine.anatomical_structure biology.protein Electrophoresis Polyacrylamide Gel Female Parasitology Sindbis Virus Antibody Chickens |
| Zdroj: | The American Journal of Tropical Medicine and Hygiene. 62:427-433 |
| ISSN: | 1476-1645 0002-9637 |
| DOI: | 10.4269/ajtmh.2000.62.427 |
| Popis: | Transgenic mosquitoes resistant to malaria parasites are being developed to test the hypothesis that they may be used to control disease transmission. We have developed an effector portion of an antiparasite gene that can be used to test malaria resistance in transgenic mosquitoes. Mouse monoclonal antibodies that recognize the circumsporozoite protein of Plasmodium gallinaceum can block sporozoite invasion of Aedes aegypti salivary glands. An anti-circumsporozoite monoclonal antibody, N2H6D5, whose corresponding heavy- and light-chain gene variable regions were engineered as a single-chain antibody construct, binds to P. gallinaceum sporozoites and prevents infection of Ae. aegypti salivary glands when expressed from a Sindbis virus. Mean intensities of sporozoite infections of salivary glands in mosquitoes expressing N2scFv were reduced as much as 99.9% when compared to controls. |
| Databáze: | OpenAIRE |
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