Hypothetical soluble KIR2DS4 natural killer cell receptor molecule does not associate with successful ageing in the Irish.

Authors: Ross OA; Maxwell LD; Rea IM; Curran MD

Abstract: The identification of immunogenetic longevity markers is a major area of molecular gerontological research. A number of genetic loci have been examined, e.g. the HLA and cytokine networks. This study investigated a genetic marker within the highly polymorphic KIR gene system with successful ageing in the Irish population. A 22 bp deletion was identified in the KIR2DS4 gene that predicts a truncated soluble KIR molecule with one intact Ig-like domain. The frequency of this variant was determined using a specific-primer PCR methodology. There was no observed association between this common polymorphic variation within this activatory KIR gene and the aged Irish population. This is the first study of KIR polymorphism in ageing and although no association was identified, the importance of the KIR network in the immune response and its polymorphic nature warrants more detailed analysis to ascertain its role in immunosenescence.

Keywords: Aged; Aged, 80 and over; Aging/*genetics/immunology; Base Sequence; Female; Gene Deletion; Genetic Markers/genetics; Genotype; Humans; Killer Cells, Natural/*immunology; Male; Molecular Sequence Data; Northern Ireland; Polymerase Chain Reaction/methods; Polymorphism, Genetic/genetics; Receptors, Immunologic/*genetics/immunology; Receptors, KIR; Solubility
Journal: Experimental gerontology
Volume: 39
Issue: 5
Pages: 801-5
Date: May 8, 2004
PMID: 15130674
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Citation:

Ross OA, Maxwell LD, Rea IM, Curran MD (2004) Hypothetical soluble KIR2DS4 natural killer cell receptor molecule does not associate with successful ageing in the Irish. Experimental gerontology 39: 801-5.


Longevity Variant Associations (p-value):
  • rs72533289 (1.0)

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