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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2011-7-4
pubmed:abstractText
Systemic juvenile idiopathic arthritis (s-JIA) is a rare inflammatory disease classified as a subtype of chronic childhood arthritis, manifested by spiking fever, erythematous skin rash, pericarditis and hepatosplenomegaly. The genetic background underlying s-JIA remains poorly defined. To detect copy number variations, we performed single nucleotide polymorphism (SNP) array analysis in 50 patients with s-JIA. We found a 13-kb intragenic deletion of CASP10 in one patient. RT-PCR of the mRNA extracted from the patient's lymphoblastoid cells revealed that CASP10 mRNA was truncated. Sequencing the mRNA revealed that this deletion resulted in a frame shift with an early stop codon. CASP10 is known as a causative gene for autoimmune lymphoproliferative syndrome (ALPS) type IIa, another childhood syndrome of lymphadenopathy and splenomegaly associated with autoimmune haemolytic anaemia and thrombocytopenia. TCR ??(+) CD4/CD8 double-negative T cells in the peripheral blood as a diagnostic marker of ALPS were not high in this patient and lymphocyte apoptosis induced by anti-Fas antibody was normal, denying ALPS in the patient. The father and a sister of the patient showing no symptoms of ALPS or s-JIA, also had the same deletion. Furthermore, we found no other mutations of CASP10 in the other 49 s-JIA patients. These data suggest that the pathogenic significance of CASP10 mutations should be carefully evaluated in s-JIA or even ALPS type IIa in further studies.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1744-313X
pubmed:author
pubmed:copyrightInfo
© 2011 Blackwell Publishing Ltd.
pubmed:issnType
Electronic
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
287-93
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Exonic deletion of CASP10 in a patient presenting with systemic juvenile idiopathic arthritis, but not with autoimmune lymphoproliferative syndrome type IIa.
pubmed:affiliation
Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan Department of Pediatrics, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't