Cited by 268Ion channel regulation and functionCardiac electrophysiology and arrhythmiasIon Channels and Receptors

Voltage sensor interaction site for selective small molecule inhibitors of voltage-gated sodium channels

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McCormack, Ken, Santos, Sonia, Chapman, Mark L., Krafte, Douglas S., Marron, Brian E., West, Christopher W., Krambis, Michael J., Antonio, Brett M. +10 more·2013·Proceedings of the National Academy of Sciences

Abstract

Significance: Voltage-gated sodium (Na v ) channels contribute to physiological and pathophysiological electrical signaling in nerve and muscle cells. Because Na v channel isoforms exhibit tissue-specific expression, subtype selective modulation of this channel family provides important drug development opportunities. However, most available Na v channel modulators are unable to distinguish between Na v channel subtypes, which limits their therapeutic utility because of cardiac or nervous system toxicity. This study describes a new class of subtype selective Na v channel inhibitors that interact with a region of the channel that controls voltage sensitivity. This interaction site may enable development of selective therapeutic interventions with reduced potential for toxicity.

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Crossref · 10.1073/pnas.1220844110

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  • Because small molecule compounds that enhance or diminish ion channel activity already exist, it is conceivable to develop drugs that modulate NaV1.2 activity to treat IEE and ASD/ID.

    “Since there is precedent for small molecule compounds that either enhance or diminish ion channel activity [60–62], it is conceivable to develop drugs for modulating NaV1.2 activity to treat IEE and ASD/ID.”

    From Progress in Understanding and Treating SCN2A-Mediated Disorders (2018) · cites this paper as [60]

    The introductory section and the NaV1.3 characterization section (pages unavailable) establish a precedent for small molecules that diminish sodium-channel activity. The paper describes channel-enhancing agents as polypeptide toxins, not small molecules, so it does not support the enhancing half of the cited precedent. The proposed NaV1.2 treatment for IEE and ASD/ID is the citing authors’ inference, not a finding attributed to this source. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

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Authors
McCormack, K., Santos, S., Chapman, M. L., Krafte, D. S., Marron, B. E., West, C. W., Krambis, M. J., Antonio, B. M., Zellmer, S. G., Printzenhoff, D., Padilla, K. M., Lin, Z., Wagoner, P. K., Swain, N. A., Stupple, P. A., de Groot, M., Butt, R. P., & Castle, N. A.
Affiliations
  • Pfizer (United States) (US)
  • Pfizer (United Kingdom) (GB)
  • Pfizer Ltd., Sandwich, Kent CT13 9NJ, United Kingdom
Venue
Proceedings of the National Academy of Sciences
Published
2013-07
Volume
110
Issue
29
Pages
E2724-32
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1979671751
Cited by
244
References
46
Citations by year
2026: 15 · 2025: 12 · 2024: 20 · 2023: 16 · 2022: 20 · 2021: 19 · 2020: 19 · 2019: 14 · 2018: 24 · 2017: 33 · 2016: 22 · 2015: 13 · 2014: 15 · 2013: 2
FWCI
8.36
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ion channel regulation and function
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
Keywords
voltage-gated sodium channels, small molecule inhibitors, subtype selectivity, Nav1.3, Nav1.7, cardiac sodium channel, toxin binding site, alpha-scorpion toxin, species sensitivity, sodium channel inactivation
MeSH terms
Acetamides, Binding Sites, Humans, Molecular Sequence Data, Thiazoles, Sequence Alignment, Patch-Clamp Techniques, Inhibitory Concentration 50, Amino Acid Motifs, Electrophysiological Phenomena, HEK293 Cells, Voltage-Gated Sodium Channel Blockers, NAV1.3 Voltage-Gated Sodium Channel

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