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A multi-omics approach to investigate the inflammatory response to life course socioeconomic position

  • Raphaele Castagne*
  • , Michelle Kelly-Irving
  • , Vittorio Krogh
  • , Domenico Palli
  • , Salvatore Panico
  • , Carlotta Sacerdote
  • , Rosario Tumino
  • , Dennie G. A. J. Hebels
  • , Jos C. S. Kleinjans
  • , Theo M. C. M. de Kok
  • , Panagiotis Georgiadis
  • , Soterios A. Kyrtopoulos
  • , Roel Vermeulen
  • , Silvia Stringhini
  • , Paolo Vineis
  • , Marc Chadeau-Hyam
  • , Cyrille Delpierre
  • *Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Aim:Inflammation represents a potential pathway through which socioeconomic position (SEP) is biologically embedded.Materials & methods:We analyzed inflammatory biomarkers in response to life course SEP by integrating multi-omics DNA-methylation, gene expression and protein level in 178 European Prospective Investigation into Cancer and Nutrition-Italy participants.Results & conclusion:We identified 61 potentialcisacting CpG loci whose methylation levels were associated with gene expression at a Bonferroni correction. We examined the relationships between life course SEP and these 61cis-acting regulatory methylation sites individually and jointly using several scores. Less-advantaged SEP participants exhibit, later in life, a lower inflammatory methylome score, suggesting an overall increased expression of the corresponding inflammatory genes or proteins, supporting the hypothesis that SEP impacts adult physiology through inflammation.

Original languageEnglish
Pages (from-to)1287-1302
Number of pages16
JournalEpigenomics
Volume12
Issue number15
DOIs
Publication statusPublished - Jul 2020

Keywords

  • DNA methylation
  • gene expression
  • inflammation
  • life course epidemiology
  • protein
  • socioeconomic position
  • CHRONIC LYMPHOCYTIC-LEUKEMIA
  • DNA METHYLATION
  • GENE-EXPRESSION
  • RISK-FACTORS
  • SOCIAL DETERMINANTS
  • BLOOD-SAMPLES
  • HEALTH
  • STRESS
  • CHILDHOOD
  • CELLS

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