Related Experiment Video
Updated: Sep 21, 2025

Establishing a Mouse Model of a Pure Small Fiber Neuropathy with the Ultrapotent Agonist of Transient Receptor Potential Vanilloid Type 1
Published on: February 13, 2018
Venom Peptide Toxins Targeting the Outer Pore Region of Transient Receptor Potential Vanilloid 1 in Pain:
Sung-Min Hwang1, Youn-Yi Jo2, Cinder Faith Cohen3
1Gachon Pain Center and Department of Physiology, Gachon University College of Medicine, Incheon 21999, Korea.
Abstract:
The transient receptor potential vanilloid 1 (TRPV1) ion channel plays an important role in the peripheral nociceptive pathway. TRPV1 is a polymodal receptor that can be activated by multiple types of ligands and painful stimuli, such as noxious heat and protons, and contributes to various acute and chronic pain conditions. Therefore, TRPV1 is emerging as a novel therapeutic target for the treatment of various pain conditions. Notably, various peptides isolated from venomous animals potently and selectively control the activation and inhibition of TRPV1 by binding to its outer pore region. This review will focus on the mechanisms by which venom-derived peptides interact with this portion of TRPV1 to control receptor functions and how these mechanisms can drive the development of new types of analgesics.
Insights
Transient Receptor Potential Vanilloid 1 (TRPV1) channels are key in pain pathways. Venom peptides offer a novel therapeutic strategy by modulating TRPV1 activity for pain relief.
Area of Science:
- Neuroscience
- Pharmacology
- Molecular Biology
Background:
- The transient receptor potential vanilloid 1 (TRPV1) ion channel is crucial in peripheral pain signaling.
- TRPV1 activation by heat, protons, and ligands contributes to acute and chronic pain.
- TRPV1 is a promising therapeutic target for pain management.
Purpose of the Study:
- To review the mechanisms of venom-derived peptides interacting with TRPV1.
- To explore how these interactions modulate TRPV1 function.
- To highlight the potential of these peptides in developing new analgesics.
Main Methods:
- Literature review of studies on TRPV1 and venom peptides.
- Analysis of molecular interactions at the TRPV1 outer pore region.
- Examination of structure-activity relationships of venom-derived modulators.
Main Results:
- Venom peptides selectively bind to the outer pore of TRPV1.
- These peptides can either activate or inhibit TRPV1 channel function.
- Specific binding sites and mechanisms of modulation have been identified.
Conclusions:
- Venom peptides represent a potent and selective class of TRPV1 modulators.
- Understanding these interactions is key to designing novel pain therapeutics.
- Targeting TRPV1 with venom-derived compounds shows significant promise for analgesic drug development.
Related Concept Videos
Analgesia and Pain Management
Non-gated Ion Channels
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism....
Pain
Mechanically-gated Ion Channels
Nociception
Opioid Receptors: Overview

