Calcium-sensing receptor: Difference between revisions
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The '''calcium-sensing receptor''' (CaSR) is a [[G-protein coupled receptor]] which senses extracellular levels of [[calcium]] ion. In the [[parathyroid gland]], the calcium-sensing receptor controls calcium [[homeostasis]] by regulating the release of [[parathyroid hormone]].<ref name="pmid17117288">{{cite journal | author = D'Souza-Li L | title = The calcium-sensing receptor and related diseases | journal = Arquivos brasileiros de endocrinologia e metabologia | volume = 50 | issue = 4 | pages = 628–39 | year = 2006 | pmid = 17117288 | doi = 10.1590/S0004-27302006000400008 | issn = }}</ref> |
The '''calcium-sensing receptor''' (CaSR) is a [[G-protein coupled receptor]] which senses extracellular levels of [[calcium]] ion. In the [[parathyroid gland]], the calcium-sensing receptor controls calcium [[homeostasis]] by regulating the release of [[parathyroid hormone]].<ref name="pmid17117288">{{cite journal | author = D'Souza-Li L | title = The calcium-sensing receptor and related diseases | journal = Arquivos brasileiros de endocrinologia e metabologia | volume = 50 | issue = 4 | pages = 628–39 | year = 2006 | pmid = 17117288 | doi = 10.1590/S0004-27302006000400008 | issn = }}</ref> The [[second messenger]] of the calcium-sensing receptor [[Cyclic adenosine monophosphate|cAMP]].<ref name=brs>{{cite book |
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| last = Costanzo |
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| first = Linda S. |
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| title = BRS Physiology |
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| publisher = Lippincott, Williams, & Wilkins |
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| date = 2007 |
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| pages = 260 |
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| url = http://www.amazon.com/Physiology-Board-Review-Linda-Costanzo/dp/0781773113/ |
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| isbn = 978-0781773119}}</ref> |
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==Pathology== |
==Pathology== |
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Revision as of 13:06, 2 June 2009
The calcium-sensing receptor (CaSR) is a G-protein coupled receptor which senses extracellular levels of calcium ion. In the parathyroid gland, the calcium-sensing receptor controls calcium homeostasis by regulating the release of parathyroid hormone.[1] The second messenger of the calcium-sensing receptor cAMP.[2]
Pathology
Mutations that inactivate CASR cause familial hypocalciuric hypercalcemia (FHH) (also known as Familial Benign Hypercalcemia because it is generally asymptomatic and does not require treatment),[3] whereas mutations that activate CASR are the cause of autosomal dominant hypocalcemia.[4] An alternatively spliced transcript variant encoding 1088 aa has been found for this gene, but its full-length nature has not been defined.[5]
Therapeutic application
The drug cinacalcet is an allosteric modifier of the calcium-sensing receptor.[6]
References
- ^ D'Souza-Li L (2006). "The calcium-sensing receptor and related diseases". Arquivos brasileiros de endocrinologia e metabologia. 50 (4): 628–39. doi:10.1590/S0004-27302006000400008. PMID 17117288.
- ^ Costanzo, Linda S. (2007). BRS Physiology. Lippincott, Williams, & Wilkins. p. 260. ISBN 978-0781773119.
{{cite book}}: Cite has empty unknown parameter:|coauthors=(help) - ^ Pidasheva S, Canaff L, Simonds WF, Marx SJ, Hendy GN (2005). "Impaired cotranslational processing of the calcium-sensing receptor due to signal peptide missense mutations in familial hypocalciuric hypercalcemia". Hum. Mol. Genet. 14 (12): 1679–90. doi:10.1093/hmg/ddi176. PMID 15879434.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Mancilla EE, De Luca F, Baron J (1998). "Activating mutations of the Ca2+-sensing receptor". Mol. Genet. Metab. 64 (3): 198–204. doi:10.1006/mgme.1998.2716. PMID 9719629.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ "Entrez Gene: CASR calcium-sensing receptor (hypocalciuric hypercalcemia 1, severe neonatal hyperparathyroidism)".
- ^ Torres PU (2006). "Cinacalcet HCl: a novel treatment for secondary hyperparathyroidism caused by chronic kidney disease". Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation. 16 (3): 253–8. doi:10.1053/j.jrn.2006.04.010. PMID 16825031.
Further reading
External links
- "Calcium-Sensing Receptors". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology.
{{cite web}}: Cite has empty unknown parameter:|coauthors=(help) - Receptors,+Calcium-Sensing at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
- CASR+protein at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
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