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dc.contributor.advisorVoolstra, Christian R.
dc.contributor.authorO'Rourke, Aubrie
dc.date.accessioned2015-05-14T11:52:34Z
dc.date.available2016-05-21T00:00:00Z
dc.date.issued2015-05
dc.identifier.citationO'Rourke, A. (2015). Bioprospecting of Red Sea Sponges for Novel Antiviral Pharmacophores. KAUST Research Repository. https://doi.org/10.25781/KAUST-78PH0
dc.identifier.doi10.25781/KAUST-78PH0
dc.identifier.urihttp://hdl.handle.net/10754/552842
dc.description.abstractNatural products offer many possibilities for the treatment of disease. More than 70% of the Earth’s surface is ocean, and recent exploration and access has allowed for new additions to this catalog of natural treasures. The Central Red Sea off the coast of Saudi Arabia serves as a newly accessible location, which provides the opportunity to bioprospect marine sponges with the purpose of identifying novel antiviral scaffolds. Antivirals are underrepresented in present day clinical trials, as well as in the academic screens of marine natural product libraries. Here a high-throughput pipeline was initiated by prefacing the antiviral screen with an Image-based High-Content Screening (HCS) technique in order to identify candidates with antiviral potential. Prospective candidates were tested in a biochemical or cell-based assay for the ability to inhibit the NS3 protease of the West Nile Virus (WNV NS protease) as well as replication and reverse transcription of the Human Immunodeficiency Virus 1 (HIV-1). The analytical chemistry techniques of High-Performance Liquid Chromatograpy (HPLC), Liquid Chromatography-Mass Spectrometry (LC-MS), and Nuclear Magnetic Resonance (NMR) where used in order to identify the compounds responsible for the characteristic antiviral activity of the selected sponge fractions. We have identified a 3-alkyl pyridinium from Amphimedon chloros as the causative agent of the observed WNV NS3 protease inhibition in vitro. Additionally, we identified debromohymenialdisine, hymenialdisine, and oroidin from Stylissa carteri as prospective scaffolds capable of HIV-1 inhibition.
dc.language.isoen
dc.subjectAntivirals
dc.subjectRed Sea
dc.subjectSponges
dc.subjectWest Nile Virus
dc.subjectHIV-I
dc.subjectNatural products
dc.titleBioprospecting of Red Sea Sponges for Novel Antiviral Pharmacophores
dc.typeDissertation
dc.contributor.departmentBiological and Environmental Science and Engineering (BESE) Division
dc.rights.embargodate2016-05-21
thesis.degree.grantorKing Abdullah University of Science and Technology
dc.contributor.committeememberStingl, Ulrich
dc.contributor.committeememberKhashab, Niveen M.
dc.contributor.committeememberBrack-Werner, Ruth
thesis.degree.disciplineMarine Science
thesis.degree.nameDoctor of Philosophy
dc.rights.accessrightsAt the time of archiving, the student author of this dissertation opted to temporarily restrict access to it. The full text of this dissertation became available to the public after the expiration of the embargo on 2016-05-21.
refterms.dateFOA2016-05-21T00:00:00Z


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