A neutralizing antibody to the a chain of abrin inhibits abrin toxicity both in vitro and in vivo

Surendranath, K. and Karande A.A. 2008. A neutralizing antibody to the a chain of abrin inhibits abrin toxicity both in vitro and in vivo. Clinical and Vaccine Immunology. 15 (5), pp. 737-743. https://doi.org/10.1128/CVI.00254-07

TitleA neutralizing antibody to the a chain of abrin inhibits abrin toxicity both in vitro and in vivo
AuthorsSurendranath, K. and Karande A.A.
Abstract

Plant ribosome-inactivating proteins (RIPs) are RNA N-glycosidases that inhibit protein synthesis in cells. Abrin, a type II RIP, is an AB type toxin, which is one of the most lethal types of toxin known. The B chain facilitates the entry of the molecule into the cell, whereas the A chain exerts the toxic effect. We have generated hybridomas secreting antibodies of the immunoglobulin G class specific to the recombinant A chain of abrin. One monoclonal antibody, namely, D6F10, rescued cells from abrin toxicity. Importantly, the antibody also protected mice from lethal doses of the toxin. The neutralizing effect of the antibody was shown to be due to interference with abrin attachment to the cell surface.

KeywordsAbrin, D6F10, Antibody, neutralization
JournalClinical and Vaccine Immunology
Journal citation15 (5), pp. 737-743
ISSN1556-6811
Year2008
PublisherAmerican Society for Microbiology
Digital Object Identifier (DOI)https://doi.org/10.1128/CVI.00254-07
Web address (URL)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2394836/
Publication dates
Published2008
FunderThe Indian Council of Medical Research (ICMR)

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