- Muckle-Wells syndrome
Infobox_Disease
Name = Muckle-Wells syndrome
Caption =
DiseasesDB = 30159
ICD10 = ICD10|E|85|0|e|75, ICD10|L|50|8|l|50
ICD9 = ICD9|xxx
ICDO =
OMIM = 191900
MedlinePlus =
eMedicineSubj =
eMedicineTopic =
MeshID =Muckle-Wells syndrome (MWS), also known as Urticaria-deafness-amyloidosis (UDA) [ [http://www.orpha.net/consor/cgi-bin/OC_Exp.php?Lng=GB&Expert=575 ORPHANET - About rare diseases - About orphan drugs ] ] , is a rare
autosomal dominant disease which causes sensorineuraldeafness , recurrent hives, and can lead toamyloidosis . Individuals with MWS often have episodic fever, chills, and painfuljoint s. As a result, MWS is considered a type ofperiodic fever syndrome . MWS is caused by a defect in theCIAS1 gene which creates the proteincryopyrin . MWS is closely related to two other syndromes,familial cold urticaria andneonatal onset multisystem inflammatory disease — in fact, all three are related to mutations in the same gene.ign and Symptoms
*Sensorineural
deafness
*Recurrenturticaria (hives)
*Fevers
*Chills
*Arthritis - Painful jointsPossible Causes
MWS occurs when a mutation in the "CIAS1" gene leads to increased activity of the cryopyrin protein. This protein is partly responsible for the body's response to damage or infection. During these states, a chemical called interleukin 1β is produced by an immune cell known as a
macrophage . This chemical interacts with a receptor on the surface of other immune cells to produce symptoms ofinflammation such as fever,arthritis , and malaise. In MWS, the increased activity of cryopyrin leads to an increase in interleukin 1β. This leads to inflammation all throughout the body with the associated symptoms. [Mariathasan S, Weiss DS, Newton K, McBride J, O'Rourke K, Roose-Girma M, Lee WP, Weinrauch Y, Monack DM, Dixit VM. "Cryopyrin activates the inflammasome in response to toxins and ATP." Nature. 2006 Mar 9;440(7081):228-32. Epub 2006 Jan 11. PMID 16407890]History
MWS was first described in 1962 by Thomas James Muckle and Michael Vernon Wells. [Muckle TJ, Wells M. "Urticaria, deafness, and amyloidosis: a new heredo-familial syndrome." Q J Med. 1962 Apr;31:235-48. PMID 14476827]
Treatment
* Treatment with
anakinra , aninterleukin 1 receptor antagonist, can lead to an improvement in the hearing loss. [Rynne M, Maclean C, Bybee A, McDermott MF, Emery P. "Hearing improvement in a patient with variant Muckle-Wells syndrome in response to interleukin 1 receptor antagonism." Ann Rheum Dis. 2006 Apr;65(4):533-4. PMID 16531551]*
Rilonacept (Arcalyst) a dimeric fusion protein for the treatment of Cryopyrin-Associated Periodic Syndromes (CAPS).Prognosis
The chronic inflammation present in MWS over time can lead to deafness. In addition, the prolonged inflammation can lead to deposition of
protein s in the kidney, a condition known as amyloidosis.ee also
*
CIAS1 - gene believed to cause disease
*Familial cold urticaria - Similar disease
*NOMID - Similar diseaseExternal links
* [http://www.NOMIDAlliance.net NOMID Alliance] -- Non-profit charity devoted to CAPS diseases
* [http://www.rareshare.org/communities/muckle-wells-syndrome Muckle-Wells Syndrome Community on RareShare]References
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