Related Experiment Video
Updated: Jul 9, 2025

Yeast Luminometric and Xenopus Oocyte Electrophysiological Examinations of the Molecular Mechanosensitivity of TRPV4
Published on: December 31, 2013
Targeting Ion Channel TRPM4
Barbara Preti1, Jean-Sébastien Rougier2, Irida Papapostolou2
1Institute if Biochemistry and Molecular Medicine, University of Bern.
Abstract:
The transient receptor potential melastatin 4 (TRPM4) ion channel is ubiquitously expressed. Dysregulation and/or functional mutations of TRPM4 lead to several diseases. Within our studies, we screened for TRPM4 inhibitors and identified small molecules that block TRPM4 in the low µM range. Furthermore, we investigated the pathophysiology of TRPM4 in cardiac conditions, immune diseases and cancer using these novel inhibitors, molecular biology techniques and functional assays.
Insights
Researchers identified novel small molecules that inhibit the TRPM4 ion channel. These TRPM4 inhibitors were used to explore the channel's role in heart disease, immune disorders, and cancer.
Area of Science:
- Biochemistry
- Molecular Biology
- Pharmacology
Background:
- The transient receptor potential melastatin 4 (TRPM4) ion channel is widely present in the body.
- TRPM4 dysfunction or mutations are associated with various diseases.
- Understanding TRPM4's role is crucial for developing new therapeutic strategies.
Purpose of the Study:
- To identify and characterize small molecule inhibitors of the TRPM4 ion channel.
- To investigate the involvement of TRPM4 in the pathophysiology of cardiac conditions, immune diseases, and cancer.
Main Methods:
- High-throughput screening to identify TRPM4 inhibitors.
- Biochemical assays to determine inhibitor potency (low µM range).
- Molecular biology techniques and functional assays to study TRPM4 in disease models.
Main Results:
- Identification of novel small molecules with low micromolar inhibitory activity against TRPM4.
- Demonstration of TRPM4's contribution to cardiac conditions, immune diseases, and cancer.
- Establishment of a toolkit for further TRPM4 research.
Conclusions:
- TRPM4 is a druggable target for various diseases.
- Novel TRPM4 inhibitors provide valuable tools for studying TRPM4-related pathophysiology.
- Targeting TRPM4 may offer therapeutic potential in cardiovascular, immunological, and oncological conditions.
Related Concept Videos
Mechanically-gated Ion Channels
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....
G-Protein Gated Ion Channels
Sensory...
Ligand-Gated Ion Channel Receptor: Gating Mechanism
Ligand-gated Ion Channels
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that...
Thermosensation

