Association among 1267 A/G HSP70-2, -308 G/A TNF-α polymorphisms and pro-inflammatory plasma mediators in old ZincAge population

R. Giacconi, L. Costarelli, M. Malavolta, F. Piacenza, R. Galeazzi, N. Gasparini, A. Basso, E. Mariani, T. Fulop, L. Rink, G. Dedoussis, S. Kanoni, G. Herbein, J. Jajte, F. Busco, E. Mocchegiani

Research output: Contribution to journalArticle

Abstract

Proinflammatory cytokines and heat shock proteins play relevant roles in the pathogenesis of inflammatory diseases. We investigated whether Hsp70 1267 A/G and TNF-α -308 G/A polymorphisms are associated with proinflammatory mediators, zinc status and laboratory parameters in 1,078 healthy elderly from ZincAge study. Hsp70 1267 A/G genotype and allele distribution were similar among various European countries, while a TNF-α genetic heterogeneity was observed between the Northern and the Southern European populations, with a major frequency of the -308 A variant in France, Germany and Poland. We used linear regression models to test additive, dominant or recessive associations of each SNP with proinflammatory mediators, laboratory parameters, metallothioneins and zinc status. Hsp70 1267 A/G SNP, but not TNF-α -308 G/A SNP, influences TNF-α and IL-6 plasma levels under additive, dominant and recessive models (for TNF-α only). An association between Hsp70 1267 A/G SNP and zinc plasma levels was observed in the dominant model. In particular, G allele carriers showed increased circulating pro-inflammatory cytokines and zinc. Moreover, both these SNPs affect creatinine levels suggesting a possible influence on renal function. In conclusion, Hsp70 1267 A/G SNP is associated with pro-inflammatory cytokine production in healthy elderly and might represent a possible determinant of individual susceptibility to inflammatory diseases.

Original languageEnglish
Pages (from-to)65-79
Number of pages15
JournalBiogerontology
Volume15
Issue number1
DOIs
Publication statusPublished - Feb 2014

Keywords

  • -308 G/A TNF-α polymorphisms
  • 1267 A/G HSP70-2 polymorphism
  • Aging
  • Cytokines
  • Zinc homeostasis

ASJC Scopus subject areas

  • Geriatrics and Gerontology
  • Gerontology
  • Ageing

Fingerprint Dive into the research topics of 'Association among 1267 A/G HSP70-2, -308 G/A TNF-α polymorphisms and pro-inflammatory plasma mediators in old ZincAge population'. Together they form a unique fingerprint.

  • Cite this