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Published on: December 31, 2013
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TRPV2
Itaru Kojima1, Masahiro Nagasawa
1Department of Cell Biology, Institute for Molecular & Cellular Regulation, Gunma University, Maebashi, Gunma Prefecture, 371-8511, Japan, ikojima@gunma-u.ac.jp.
Handbook of Experimental Pharmacology
|April 24, 2014
Summary
Transient receptor potential vanilloid type 2 (TRPV2) channels move to the cell surface when activated by specific signals or stress. This calcium channel plays a role in various cell types, including neurons and immune cells.
Area of Science:
- Molecular biology
- Cell physiology
- Ion channel research
Background:
- Transient receptor potential vanilloid type 2 (TRPV2) is a calcium-permeable cation channel.
- TRPV2 belongs to the TRPV channel family and is activated by heat, ligands, and mechanical stress.
- Typically, TRPV2 resides in the endoplasmic reticulum but translocates to the plasma membrane upon stimulation.
Purpose of the Study:
- To investigate the translocation mechanism of TRPV2 channels.
- To understand the functional role of TRPV2 in different cell types.
Main Methods:
- Cellular localization studies using microscopy.
- Stimulation assays with phosphatidylinositol 3-kinase-activating ligands.
- Analysis of TRPV2 expression in various cell types.
Main Results:
- TRPV2 translocates from the endoplasmic reticulum to the plasma membrane upon stimulation by specific ligands or mechanical stress.
- TRPV2 expression is notably high in neurons, neuroendocrine cells, innate immune cells, and certain cancer cells.
- TRPV2 activation and translocation suggest a role in modulating cellular functions in these specific cell types.
Conclusions:
- TRPV2 is a dynamic calcium channel that relocates to the plasma membrane in response to cellular signals.
- The expression pattern of TRPV2 highlights its potential involvement in neuronal function, immune responses, and cancer cell biology.
- Further research into TRPV2's function could reveal therapeutic targets for related diseases.
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