Download MendeleyAlkyne-Bridged alpha-Conotoxin Vc1.1 Potently Reverses Mechanical Allodynia in Neuropathic Pain Models.
Belgi, A., Burnley, J.V., MacRaild, C.A., Chhabra, S., Elnahriry, K.A., Robinson, S.D., Gooding, S.G., Tae, H.S., Bartels, P., Sadeghi, M., Zhao, F.Y., Wei, H., Spanswick, D., Adams, D.J., Norton, R.S., Robinson, A.J.(2021) J Med Chem 64: 3222-3233
- PubMed: 33724033
- DOI: https://doi.org/10.1021/acs.jmedchem.0c02151
- Primary Citation of Related Structures:
7KNN - PubMed Abstract:
Several Conus -derived venom peptides are promising lead compounds for the management of neuropathic pain, with α-conotoxins being of particular interest. Modification of the interlocked disulfide framework of α-conotoxin Vc1.1 has been achieved using on-resin alkyne metathesis. Although introduction of a metabolically stable alkyne motif significantly disrupts backbone topography, the structural modification generates a potent and selective GABA B receptor agonist that inhibits Ca v 2.2 channels and exhibits dose-dependent reversal of mechanical allodynia in a behavioral rat model of neuropathic pain. The findings herein support the hypothesis that analgesia can be achieved via activation of GABA B Rs expressed in dorsal root ganglion (DRG) sensory neurons.
Organizational Affiliation:
School of Chemistry, Monash University, Clayton, Victoria 3800, Australia.
