Article ; Online: Transient receptor potential (TRP) channels as drug targets for diseases of the digestive system.
2011 Volume 131, Issue 1, Page(s) 142–170
Abstract: Approximately 20 of the 30 mammalian transient receptor potential (TRP) channel subunits are ... and pancreatic cancer, and polycystic liver disease. These implications identify TRP channels ... perspective, TRP channels operate either as primary detectors of chemical and physical stimuli, as secondary ...
| Abstract | Approximately 20 of the 30 mammalian transient receptor potential (TRP) channel subunits are expressed by specific neurons and cells within the alimentary canal. They subserve important roles in taste, chemesthesis, mechanosensation, pain and hyperalgesia and contribute to the regulation of gastrointestinal motility, absorptive and secretory processes, blood flow, and mucosal homeostasis. In a cellular perspective, TRP channels operate either as primary detectors of chemical and physical stimuli, as secondary transducers of ionotropic or metabotropic receptors, or as ion transport channels. The polymodal sensory function of TRPA1, TRPM5, TRPM8, TRPP2, TRPV1, TRPV3 and TRPV4 enables the digestive system to survey its physical and chemical environment, which is relevant to all processes of digestion. TRPV5 and TRPV6 as well as TRPM6 and TRPM7 contribute to the absorption of Ca²⁺ and Mg²⁺, respectively. TRPM7 participates in intestinal pacemaker activity, and TRPC4 transduces muscarinic acetylcholine receptor activation to smooth muscle contraction. Changes in TRP channel expression or function are associated with a variety of diseases/disorders of the digestive system, notably gastro-esophageal reflux disease, inflammatory bowel disease, pain and hyperalgesia in heartburn, functional dyspepsia and irritable bowel syndrome, cholera, hypomagnesemia with secondary hypocalcemia, infantile hypertrophic pyloric stenosis, esophageal, gastrointestinal and pancreatic cancer, and polycystic liver disease. These implications identify TRP channels as promising drug targets for the management of a number of gastrointestinal pathologies. As a result, major efforts are put into the development of selective TRP channel agonists and antagonists and the assessment of their therapeutic potential. |
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| MeSH term(s) | Animals ; Digestive System Diseases/drug therapy ; Digestive System Diseases/metabolism ; Humans ; Transient Receptor Potential Channels/agonists ; Transient Receptor Potential Channels/antagonists & inhibitors |
| Chemical Substances | Transient Receptor Potential Channels |
| Language | English |
| Publishing date | 2011-03-21 |
| Publishing country | England |
| Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Review |
| ZDB-ID | 194735-7 |
| ISSN | 1879-016X ; 0163-7258 |
| ISSN (online) | 1879-016X |
| ISSN | 0163-7258 |
| DOI | 10.1016/j.pharmthera.2011.03.006 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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