MassIVE MSV000089560

Complete Public PXD034170

Bioprospecting the American Alligator Peptidome for Antiviral Peptides Against Venezuelan Equine Encephalitis Virus

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Description

The innate immune protection provided by cationic antimicrobial peptides (CAMPs) has been shown to extend to antiviral activity, with putative mechanisms of action including direct interaction with host cells or pathogen membranes. The lack of therapeutics available for the treatment of viruses such as Venezuelan equine encephalitis virus (VEEV) underscores the urgency of novel strategies for antiviral discovery. American alligator plasma has been shown to exhibit strong in vitro antibacterial activity, and functionalized hydrogel particles have been successfully employed for the identification of specific CAMPs from alligator plasma. Here, a novel bait strategy in which particles were encapsulated in membranes from either healthy or VEEV-infected cells was implemented to identify peptides preferentially targeting infected cells for subsequent evaluation of antiviral activity. Statistical analysis of peptide identification results was used to select five candidate peptides for testing, of which three exhibited a dose-dependent inhibition of VEEV, with one peptide also significantly inhibiting infectious titers. Results suggest our bioprospecting strategy provides a versatile platform that may be adapted for antiviral peptide identification from complex biological samples. [doi:10.25345/C5JQ0SZ94] [dataset license: CC0 1.0 Universal (CC0 1.0)]

Keywords: antiviral peptides ; membrane-encapsulated particles ; non-model organism ; Venezuelan equine encephalitis virus

Contact

Principal Investigators:
(in alphabetical order) 		Barney Bishop, George Mason University, United States
Submitting User: acarfagn
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