Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2007-12-21
pubmed:abstractText
Human leukocyte antigen-G (HLA-G) is a non-classical major histocompatibility complex (MHC) class Ib molecule predominantly expressed in cytotrophoblasts, where it acts as a specific immunosuppressor. Literature data have shown that grafts in some settings, such as cardiac and liver/kidney-associated transplantations, express HLA-G and this expression is associated with less severe rejection and also reduces the incidence of rejection. Fourteen-base pair deletion/insertion polymorphism has been reported in exon 8 of the 3'-untranslated region of HLA-G. This polymorphism within exon 8 of the HLA-G gene might influence transcription activity, which in turn may influence the stability of HLA-G transcripts. This influences the stability of the HLA-G protein and therefore is of potential functional relevance. In order to determine a possible correlation between the 14-bp insertion/deletion polymorphism and kidney allograft outcome, we isolated genomic DNA from 83 patients who had received isolated kidney allografts, and we classified the 83 specimens into two groups, grafts presenting Banff features of rejection group and a non-rejection group, and compared them with a control group of 97 healthy subjects. The 14-bp polymorphism at exon 8 was genotyped in all groups. There was no significant difference in allelic frequencies of 14-bp insertion/deletion polymorphism between normal controls and kidney transplant patients. In the RG, the homozygous genotype +14/+14 bp (P = 0.0238) was significantly increased in the group with acute rejection compared with the healthy control group. Analysis of other HLA-G polymorphisms and functional studies on immune regulation are essential to elucidate the role of HLA-G in kidney allografts.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0001-2815
pubmed:author
pubmed:issnType
Print
pubmed:volume
71
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
35-41
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:17971051-Adolescent, pubmed-meshheading:17971051-Adult, pubmed-meshheading:17971051-Aged, pubmed-meshheading:17971051-Base Sequence, pubmed-meshheading:17971051-Exons, pubmed-meshheading:17971051-Female, pubmed-meshheading:17971051-Gene Frequency, pubmed-meshheading:17971051-Graft Rejection, pubmed-meshheading:17971051-HLA Antigens, pubmed-meshheading:17971051-HLA-G Antigens, pubmed-meshheading:17971051-Histocompatibility Antigens Class I, pubmed-meshheading:17971051-Humans, pubmed-meshheading:17971051-Kidney Transplantation, pubmed-meshheading:17971051-Male, pubmed-meshheading:17971051-Middle Aged, pubmed-meshheading:17971051-Mutagenesis, Insertional, pubmed-meshheading:17971051-Polymorphism, Genetic, pubmed-meshheading:17971051-Sequence Deletion, pubmed-meshheading:17971051-Transplantation, Homologous
pubmed:year
2008
pubmed:articleTitle
Frequency of insertion/deletion polymorphism in exon 8 of HLA-G and kidney allograft outcome.
pubmed:affiliation
Department of Biochemistry and Immunology, School of Medicine of Ribeirão Preto, University of São Paulo, São Paulo, Brazil. janacrispm@usp.br
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't