| TRPV4 — Transient Receptor Potential Cation Channel Subfamily V Member 4 | |
|---|---|
| Symbol | TRPV4 |
| Full Name | Transient Receptor Potential Cation Channel Subfamily V Member 4 |
| Chromosome | 12q24.11 |
| NCBI Gene | 59341 |
| Ensembl | ENSG00000167799 |
| OMIM | 605067 |
| UniProt | Q9HBA0 |
| Diseases | Alzheimer's Disease, Parkinson's Disease, Peripheral Neuropathy |
| Expression | Cerebral cortex, Hippocampus, Dorsal root ganglion, Peripheral nerves, Endothelial cells |
TRPV4 (Transient Receptor Potential Cation Channel Subfamily V Member 4) is a polymodal sensory channel encoded by the TRPV4 gene located on chromosome 12q24.11. This versatile channel responds to multiple stimuli including mechanical force, temperature, osmotic pressure, and chemical ligands, making it a crucial sensor in various physiological processes [1][2].
TRPV4 is extensively expressed throughout the nervous system, where it participates in mechanosensation, thermosensation, and calcium signaling. The channel has been increasingly recognized for its roles in neurodegeneration, neuroinflammation, and demyelinating diseases [3][4].
The TRPV4 gene spans approximately 56 kb and consists of 15 exons. It encodes a protein of 871 amino acids with a molecular weight of approximately 98 kDa. The gene undergoes alternative splicing, producing multiple isoforms with distinct tissue distributions and functional properties [5].
TRPV4 is expressed in:
TRPV4 localizes to:
TRPV4 functions as a polymodal sensor responding to:
Mechanical stimuli
Thermal stimuli
Chemical stimuli
TRPV4 contributes to intracellular calcium dynamics:
Under normal conditions, TRPV4 can provide:
TRPV4 is implicated in AD pathogenesis through multiple mechanisms:
Calcium Dysregulation
Vascular Function
Neuroinflammation
In PD, TRPV4 plays complex roles:
Dopaminergic Neurons
Oxidative Stress
Alpha-Synuclein Interaction
TRPV4 mutations and dysregulation are associated with:
TRPV4 is a promising drug target:
Agonists
Antagonists