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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2005-4-21
pubmed:abstractText
Kawasaki disease (KD) is an acute vasculitis of infants and young children, preferentially affecting the coronary arteries. Intravenous infusion of high dose Ig (IVIG) effectively reduces systemic inflammation and prevents coronary artery lesions in KD. To investigate the mechanisms underlying the therapeutic effects of IVIG, we examined gene expression profiles of PBMC and purified monocytes obtained from acute patients before and after IVIG therapy. The results suggest that IVIG suppresses activated monocytes and macrophages by altering various functional aspects of the genes of KD patients. Among the 18 commonly decreased transcripts in both PBMC and purified monocytes, we selected six genes, FCGR1A, FCGR3A, CCR2, ADM, S100A9, and S100A12, and confirmed the microarray results by real-time RT-PCR. Moreover, the expressions of FcgammaRI and FcgammaRIII on monocytes were reduced after IVIG. Plasma S100A8/A9 heterocomplex, but not S100A9, levels were elevated in patients with acute KD compared with those in febrile controls. Furthermore, S100A8/A9 was rapidly down-regulated in response to IVIG therapy. Persistent elevation of S100A8/A9 after IVIG was found in patients who later developed coronary aneurysms. These results indicate that the effects of IVIG in KD may be mediated by suppression of an array of immune activation genes in monocytes, including those activating FcgammaRs and the S100A8/A9 heterocomplex.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
174
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5837-45
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15843588-Acute Disease, pubmed-meshheading:15843588-Calgranulin A, pubmed-meshheading:15843588-Calgranulin B, pubmed-meshheading:15843588-Child, pubmed-meshheading:15843588-Child, Preschool, pubmed-meshheading:15843588-Dose-Response Relationship, Immunologic, pubmed-meshheading:15843588-Down-Regulation, pubmed-meshheading:15843588-Drug Administration Schedule, pubmed-meshheading:15843588-Female, pubmed-meshheading:15843588-Gene Expression Profiling, pubmed-meshheading:15843588-Humans, pubmed-meshheading:15843588-Immunoglobulins, Intravenous, pubmed-meshheading:15843588-Infant, pubmed-meshheading:15843588-Leukocytes, Mononuclear, pubmed-meshheading:15843588-Male, pubmed-meshheading:15843588-Monocytes, pubmed-meshheading:15843588-Mucocutaneous Lymph Node Syndrome, pubmed-meshheading:15843588-Oligonucleotide Array Sequence Analysis, pubmed-meshheading:15843588-Receptors, IgG, pubmed-meshheading:15843588-Up-Regulation
pubmed:year
2005
pubmed:articleTitle
Gene expression profiling of the effect of high-dose intravenous Ig in patients with Kawasaki disease.
pubmed:affiliation
Department of Allergy and Immunology, National Research Institute for Child Health and Development, Tokyo, Japan. jabe@nch.go.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't