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Conus venom peptide pharmacology
Lewis, R.J.; Dutertre, S.; Vetter, I.; Christie, M.J. (2012). Conus venom peptide pharmacology. Pharmacological reviews 64(2): 259-298. https://dx.doi.org/10.1124/pr.111.005322
In: Pharmacological reviews. Amer Soc Pharmacology Experimental Therapeutics. ISSN 0031-6997; e-ISSN 1521-0081, more
Peer reviewed article  

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Keyword
    Marine/Coastal

Authors  Top 
  • Lewis, R.J.
  • Dutertre, S.
  • Vetter, I., more
  • Christie, M.J.

Abstract
    Conopeptides are a diverse group of recently evolved venom peptides used for prey capture and/or defense. Each species of cone snails produces in excess of 1000 conopeptides, with those pharmacologically characterized (∼0.1%) targeting a diverse range of membrane proteins typically with high potency and specificity. The majority of conopeptides inhibit voltage- or ligand-gated ion channels, providing valuable research tools for the dissection of the role played by specific ion channels in excitable cells. It is noteworthy that many of these targets are found to be expressed in pain pathways, with several conopeptides having entered the clinic as potential treatments for pain [e.g., pyroglutamate1-MrIA (Xen2174)] and one now marketed for intrathecal treatment of severe pain [ziconotide (Prialt)]. This review discusses the diversity, pharmacology, structure-activity relationships, and therapeutic potential of cone snail venom peptide families acting at voltage-gated ion channels (ω-, μ-, μO-, δ-, ι-, and κ-conotoxins), ligand-gated ion channels (α-conotoxins, σ-conotoxin, ikot-ikot, and conantokins), G-protein-coupled receptors (ρ-conopeptides, conopressins, and contulakins), and neurotransmitter transporters (χ-conopeptides), with expanded discussion on the clinical potential of sodium and calcium channel inhibitors and α-conotoxins. Expanding the discovery of new bioactives using proteomic/transcriptomic approaches combined with high-throughput platforms and better defining conopeptide structure-activity relationships using relevant membrane protein crystal structures are expected to grow the already significant impact conopeptides have had as both research probes and leads to new therapies.

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