Immunodot Assay of Plasmodium falciparum Sporozoites in Mosquitoes Using a Direct Binding Membrane System

Autor: Gary W. Long, John J. Oprandy, Yupin Charoenvit
Rok vydání: 1990
Předmět:
Zdroj: The American Journal of Tropical Medicine and Hygiene. 43:597-601
ISSN: 1476-1645
0002-9637
DOI: 10.4269/ajtmh.1990.43.597
Popis: We describe a membrane based immunodot assay for the detection of Plasmodium falciparum sporozoites mixed with mosquitoes. A crude sodium dodecyl sulfate extract of mosquitoes and sporozoites is passed through a bi-layered membrane system, the top layer being a polyvinyldiene difluoride hydrophilic pre-filter which screens out debris but allows the passage of antigen. Sporozoite, as well as mosquito, proteins are bound to the hydrophobic membrane below. This membrane was probed with a monoclonal antibody to the repeat region of the P. falciparum circumsporozoite protein, a peroxidase labeled second antibody and a tetramethyl-benzidine substrate. The method detects as few as 10 sporozoites/mosquito or 100 sporozoites in a pool of 10.
Databáze: OpenAIRE