Modulation of human longevity by SIRT3 single nucleotide polymorphisms in the prospective study "Treviso Longeva (TRELONG)"

Diego Albani, Eleonora Ateri, Stefano Mazzuco, Alice Ghilardi, Serena Rodilossi, Gloria Biella, Fausta Ongaro, Piero Antuono, Paolo Boldrini, Enrico Di Giorgi, Andrea Frigato, Elisabetta Durante, Livio Caberlotto, Andrea Zanardo, Marinella Siculi, Maurizio Gallucci, Gianluigi Forloni

Research output: Contribution to journalArticlepeer-review

Abstract

Human sirtuins are seven proteins with deacetylase activity that are emerging as key modulators of basic physiological functions. Some evidence links SIRT3 to longevity in mammals. This study aimed to investigate whether variants within SIRT3 gene were associated to human longevity. We analyzed 549 genomic DNA collected during the prospective study "Treviso Longeva," including elderly over 70 years of age from the municipality of Treviso, a small city in the northeast of Italy. We genotyped SIRT3 rs3825075, rs4980329, and rs11555236 single nucleotide polymorphisms (SNPs) by real-time polymerase chain reaction allelic discrimination assay. A cross-sectional analysis performed by comparing people over and under 85 years of age did not evidence association among the SIRT3 SNPs and longevity. However, when we performed a longitudinal analysis considering mortality as a dependent variable, we observed an association of SIRT3 rs11555236 and rs4980329 with longevity in the whole population (p values corrected for potential confounders=0.04 and 0.03, respectively). After stratification according to gender, the same SNPs were associated to female longevity only (p values corrected for potential confounders=0.03 and 0.02, respectively). Finally, as rs11555236 was reported to be in linkage disequilibrium with a putative functional enhancer within the SIRT3 gene, we assessed whether rs11555236 genotypes correlated with a different level of SIRT3 protein in peripheral blood mononuclear cells.We found an increased level of SIRT3 in subjects homozygous for the (T) allele. We suggest that SIRT3 genetic variability might be relevant for the modulation of human longevity in the Italian population.

Original languageEnglish
Pages (from-to)469-478
Number of pages10
JournalAge
Volume36
Issue number1
DOIs
Publication statusPublished - 2014

Keywords

  • Aging
  • Genetics
  • Longevity
  • Longitudinal study
  • SIRT3
  • TRELONG

ASJC Scopus subject areas

  • Ageing
  • Geriatrics and Gerontology

Fingerprint Dive into the research topics of 'Modulation of human longevity by SIRT3 single nucleotide polymorphisms in the prospective study "Treviso Longeva (TRELONG)"'. Together they form a unique fingerprint.

Cite this