Exploring the Therapeutic Potential of a Peptide Derived from a Poxviral Immune Evasion Protein
Poster Aug 04, 2014
Toll-like receptors (TLRs) have a role in viral detection leading to cytokine and IFN induction, and as such are targeted by viruses for immune evasion.
The poxviral protein A46 has been identified to inhibit TLR signalling by interacting with TIR domain containing proteins of the receptor complex to
collectively inhibit all TLR adaptor proteins that positively regulate transcription-factor activation. An inhibitory peptide derived from A46 termed VIPER
selectively targets TLR4. This research investigates what affect the polyarginine delivery sequence location has on VIPER activity in vitro. In this study,
9R-VIPER is shown to be more effective at TLR4 and TLR2 signal inhibition than VIPER for multiple signalling pathways. Novel mechanisms of TLR2-
driven interferon induction have been shown to be affected by 9R-VIPER and VIPER. The longevity of TLR4 inhibition by 9R-VIPER was shown to be
superior to VIPER. Residues required for peptide activity were identified. Structural information about 9R-VIPER and a loss-of-function mutant was
determined by NMR analysis.
Exploiting Polypharmacology in Precision Oncology: Identification of Differential Kinase Off-targets Among Clinical PARP InhibitorsPoster
Can we use computational methods to identify previously unknown off-targets of PARP inhibitors that can explain their observed differences?READ MORE
LC-SWATH/MS Metabolomics Platform with Hyphenation of Extraction for the Analysis of Polar and Non-polar Metabolites in Biological SamplesPoster
Automated robotic sample preparation with hyphenated dual LC-SWATH/MS analysis for lipids and polar metabolites.
Bioluminescent Assay for GTPases Allows Measurement of GTPase, GAP and GEF ActivitiesPoster
We have developed a homogenous bioluminescent assay (GTPase-Glo) system to analyze these proteins in a simple, convenient “add-mix-read” format.READ MORE