Volume 7 Supplement 1

25th European Workshop for Rheumatology Research

Open Access

Hearing improvement in a variant Muckle–Wells syndrome case in response to IL-1 receptor antagonism

  • M Rynne1,
  • C Maclean1,
  • MF McDermott1 and
  • P Emery1
Arthritis Research & Therapy20057(Suppl 1):P96

DOI: 10.1186/ar1617

Received: 11 January 2005

Published: 17 February 2005


The proinflammatory cytokine IL-1β has been implicated in the pathogenesis of a number of the hereditary periodic fever syndromes. One such syndrome, Muckle–Wells syndrome (MWS), is characterised by the triad of urticaria, progressive sensorineural deafness and systemic amyloid A amyloidosis. Other features include rigors, leucocytosis, raised acute phase reactants and serum amyloid A levels. A number of case reports have recently emerged involving treatment with the recombinant human IL-1 receptor antagonist, Anakinra (Kineret; Amgen, Cambridge, UK) [13].

Case report

A 59-year-old caucasian female presented with increasingly severe and intractable disease over a 15-year period. In addition to the above features, she also exhibited papilloedema and chronic aseptic meningitis. No other family members were affected. Upon commencing treatment with Anakinra, there was complete resolution of her inflammatory symptoms within 24–48 hours, and rapid normalisation of her C-reactive protein and serum amyloid A levels (from 415.0 mg/l to 12.6 mg/l after 4 weeks of therapy). Her intracranial pressure and CSF white cell counts also returned to normal. Audiometry confirmed a 15–30 decibel improvement in the 250–4000 Hz frequency range in each ear. No mutations of the responsible gene – NALP3/CIAS1 on chromosome 1q44 – were demonstrated on her DNA sequencing.


Our patient is the oldest reported sporadic case of MWS. Heterozygous missense mutations have thus far been reported in only 60% of MWS patients analysed [4]. The confirmed improvements in hearing, intracranial pressure, and CSF white cell counts seen here with Anakinra lend further support to the treatment of the autoinflammatory conditions by targeting IL-1. The pathogenesis of the sensorineural deafness in MWS is unclear although it is postulated that expression of mutated NALP3/CIAS1 in cartilage may have a causative role [3].



The authors gratefully acknowledge the invaluable assistance of Alison Bybee (Royal Free and University College Medical School, London) and Ebun Aganna (Queen Mary's School of Medicine and Dentistry, London) for their sequencing of our patient's DNA.

Authors’ Affiliations

Academic Unit of Musculoskeletal Disease, Department of Rheumatology, Leeds General Infirmary


  1. Hoffman HM, Patel DD: Genomic-based therapy: targeting interlerukin-1 for autoinflammatory diseases. Arthritis Rheum. 2004, 50: 345-346. 10.1002/art.20032.View ArticlePubMedGoogle Scholar
  2. Hawkins PN, Lachmann HJ, McDermott MF: Interleukin-1 receptor antagonist in Muckle–Wells syndrome. N Engl J Med. 2003, 348: 2583-2584. 10.1056/NEJM200306193482523.View ArticlePubMedGoogle Scholar
  3. Hawkins PN, Lachmann HJ, Aganna E, McDermott MF: Spectrum of clinical features in Muckle–Wells syndrome and response to Anakinra. Arthritis Rheum. 2004, 50: 607-612. 10.1002/art.20033.View ArticlePubMedGoogle Scholar
  4. Neven B, Callebaut I, Prieur AM, Feldmann J, Bodemer C, Lepore L, Derfalvi B, Benjaponpitak S, Vesely R, Sauvain MJ, et al: Molecular basis of the spectral expression of CIAS1 mutations associated with phagocytic cell-mediated autoinflammatory disorders CINCA/NOMID, MWS, and FCU. Blood. 2004, 103: 2809-2815. 10.1182/blood-2003-07-2531.View ArticlePubMedGoogle Scholar


© BioMed Central Ltd 2005