Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2009-6-1
pubmed:abstractText
Multiple cases of IgA nephropathy (IgAN) may occur in families; we compared their prognosis to sporadic cases of this disease. We isolated macromolecular IgA1 from 60 patients with familial IgAN, 91 of their asymptomatic relatives, 43 patients with sporadic IgAN (SpIgAN), 90 of their asymptomatic relatives, and 43 healthy subjects. Compared with SpIgAN patients, those with multiplex familial IgAN (MpIgAN) had more advanced renal histopathology and more galactose-deficient macromolecular IgA1 in their serum. Further, when we tested the effects of the macromolecular IgA1 on human mesangial cells in culture, we found that the macromolecular IgA1 taken from familial clusters had enhanced binding to mesangial cells and caused increased expression of interleukin-6, tumor necrosis factor-alpha, and monocyte chemotactic peptide-1. The macromolecular IgA1 isolated from asymptomatic relatives caused increased cytokine expression in the mesangial cells when derived from MpIgAN compared with SpIgAN or healthy controls. While these studies suggest that macromolecular IgA1 isolated from patients with MpIgAN is more pathogenic than that from patients with SpIgAN, long term follow-up will be needed to clarify the risk in asymptomatic relatives of the patients with multiplex familial disease.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1523-1755
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
75
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1330-9
pubmed:meshHeading
pubmed-meshheading:19340088-Base Sequence, pubmed-meshheading:19340088-Case-Control Studies, pubmed-meshheading:19340088-Cells, Cultured, pubmed-meshheading:19340088-Chemokine CCL2, pubmed-meshheading:19340088-DNA Primers, pubmed-meshheading:19340088-Female, pubmed-meshheading:19340088-Follow-Up Studies, pubmed-meshheading:19340088-Gene Expression, pubmed-meshheading:19340088-Glomerulonephritis, IGA, pubmed-meshheading:19340088-Humans, pubmed-meshheading:19340088-Immunoglobulin A, pubmed-meshheading:19340088-Interleukin-6, pubmed-meshheading:19340088-Kidney Failure, Chronic, pubmed-meshheading:19340088-Male, pubmed-meshheading:19340088-Mesangial Cells, pubmed-meshheading:19340088-Multiprotein Complexes, pubmed-meshheading:19340088-Prognosis, pubmed-meshheading:19340088-RNA, Messenger, pubmed-meshheading:19340088-Tumor Necrosis Factor-alpha
pubmed:year
2009
pubmed:articleTitle
Macromolecular IgA1 taken from patients with familial IgA nephropathy or their asymptomatic relatives have higher reactivity to mesangial cells in vitro.
pubmed:affiliation
Department of Medicine, Queen Mary Hospital, University of Hong Kong, Pokfulam, Hong Kong.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't