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A Limited Structural Modification Results in a Significantly More Efficacious Diazachrysene-Based Filovirus Inhibitor

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2012
1107.pdf (480.5Kb)
Authors
Selaković, Života
Opsenica, Dejan
Eaton, Brett
Retterer, Cary
Bavari, Sina
Burnett, James C.
Šolaja, Bogdan
Panchal, Rekha G.
Article (Published version)
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Abstract
Ebola (EBOV) and Marburg (MARV) filoviruses are highly infectious pathogens causing deadly hemorrhagic fever in humans and non-human primates. Promising vaccine candidates providing immunity against filoviruses have been reported. However, the sporadic nature and swift progression of filovirus disease underlines the need for the development of small molecule therapeutics providing immediate antiviral effects. Herein we describe a brief structural exploration of two previously reported diazachrysene (DAAC)-based EBOV inhibitors. Specifically, three analogs were prepared to examine how slight substituent modifications would affect inhibitory efficacy and inhibitor-mediated toxicity during not only EBOV, but also MARV cellular infection. Of the three analogs, one was highly efficacious, providing IC50 values of 0.696 mu M +/- 0.13 mu M and 2.76 mu M +/- 0.21 mu M against EBOV and MARV infection, respectively, with little or no associated cellular toxicity. Overall, the structure-activity ...and structure-toxicity results from this study provide a framework for the future development of DAAC-based filovirus inhibitors that will be both active and non-toxic in vivo.

Keywords:
filovirus / Ebola virus / Marburg virus / antiviral / diazachrysene / inhibitory efficacy / toxicity / small molecule
Source:
Viruses-Basel, 2012, 4, 8, 1279-1288
Publisher:
  • Mdpi Ag, Basel
Projects:
  • The synthesis of aminoquinoline-based antimalarials and botulinum neurotoxin A inhibitors (RS-172008)
  • Frederick National Laboratory for Cancer Research, National Institutes of Health (US) [HHSN261200800001E]
  • Joint Science and Technology Office [TMTI_00048_RD_T]

DOI: 10.3390/v4081279

ISSN: 1999-4915

PubMed: 23012625

WoS: 000308213000007

Scopus: 2-s2.0-84868605426
[ Google Scholar ]
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/1109
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IHTM

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