6533b832fe1ef96bd129a3d7

RESEARCH PRODUCT

Significance of I313V mutation of NLPR3 gene in two pediatric patients

Sonia CartaAnna RubartelliR AntonaRomina GallizziA OmenettiM AlessioMartina FinettiM GattornoAlberto Martini

subject

medicine.medical_specialtyMutationlcsh:Diseases of the musculoskeletal systembusiness.industryAcute-phase proteinlcsh:RJ1-570lcsh:Pediatricsmedicine.disease_causePhenotypeRheumatologyEndocrinologyRheumatologyUrticarial rashInternal medicineOn demandPoster PresentationPediatrics Perinatology and Child HealthmedicineImmunology and AllergySecretionPediatrics Perinatology and Child Healthlcsh:RC925-935businessGene

description

Results Both case #1 (M.T) and #2 (V.C) displayed a mild clinical phenotype (episodes of urticarial rash and arthralgia associated with elevation of acute phase reactants), compatible with FCAS and Muckle-Wells syndrome, respectively. Both patients displayed good response to NSAID and/or steroid on demand. Compared to HD controls, patients displayed enhanced and delayed IL1b secretion. This was accompanied by higher levels of lL1Ra and IL-6 without any significant differences in IL-8. Interestingly, parents carrying the mutation also displayed higher levels of secreted IL-1b compared to HD control group. Conclusion The I313V mutation is associated with a mild CAPS phenotype and with an increased IL-1b secretion.

10.1186/1546-0096-9-s1-p305http://dx.doi.org/10.1186/1546-0096-9-s1-p305