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IDENTIFICATION OF ANTI-ADHESION SMALL MOLECULES, WHICH INHIBIT SEQUESTRATION OF PLASMODIUM-FALCIPARUM INFECTED ERYTHROCYTES, USING A TWO-STEP APPROACH

A hallmark trait of P. falciparum malaria is sequestration, in which parasite infected erythrocytes (IEs) adhere to the vasculature, causing organ failure and death. Current antimalarials only kill the parasites, necessitating development of anti-adhesion drugs. Using our two-step approach, we can efficiently screen for anti-adhesion small molecules. Screenings of 75libraries using Bio-Plex 200 identified the most active TPI libraries, which were deconvoluted to single compounds. Screenings library TPI 1319 yielded 3 inhibiting non-optimized compounds, each of which inhibits binding between two receptors, CSA and ICAM1, and their binding PfEMP1 domains. Two compounds deconvoluted from TPI 2103 prevent binding between PfEMP1 and ICAM1. Cytoadhesion assays with live IEs support the results seen with Bio-Plex, with best hits showing inhibition below 200 nM. Cytotoxicity testing of active compounds showed minimaltoxicity. Identified hits appear to be amenable to Structure Activity Relationship studies to develop powerful anti-adhesion drugs to treat severe malaria. / Includes bibliography. / Thesis (MS)--Florida Atlantic University, 2021. / FAU Electronic Theses and Dissertations Collection

Identiferoai:union.ndltd.org:fau.edu/oai:fau.digital.flvc.org:fau_78774
ContributorsVisitdesotrakul, Pimnitah S. (author), Oleinikov, Andrew (Thesis advisor), Florida Atlantic University (Degree grantor), Department of Biomedical Science, Charles E. Schmidt College of Medicine
PublisherFlorida Atlantic University
Source SetsFlorida Atlantic University
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation, Text
Format59 p., application/pdf
RightsCopyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder., http://rightsstatements.org/vocab/InC/1.0/

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