Association of IL1RAP-related genetic variation with cerebrospinal fluid concentration of Alzheimer-associated tau protein

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

A possible involvement of the gene IL1RAP (interleukin-1 receptor-associated protein) in the pathogenesis of Alzheimer’s disease (AD) has been suggested in GWASs of cerebrospinal fluid (CSF) tau levels and longitudinal change in brain amyloid burden. The aim of this study was to examine previously implicated genetic markers in and near IL1RAP in relation to AD risk, CSF tau and Aβ biomarkers, as well as cognitive decline, in a case (AD)-control study and an age homogenous population-based cohort. Genotyping of IL1RAP-related single nucleotide polymorphisms (SNPs), selected based on previous GWAS results, was performed. 3446 individuals (1154 AD cases and 2292 controls) were included in the analyses of AD risk, 1400 individuals (cognitively normal = 747, AD = 653) in the CSF biomarker analyses, and 861 individuals in the analyses of cognitive decline. We found no relation between IL1RAP-related SNPs and AD risk. However, CSF total-tau and phospho-tau were associated with the SNP rs9877502 (p = 6 × 10 −3 and p = 5 × 10 −4 ). Further, nominal associations (p = 0.03–0.05) were found between three other SNPs and CSF biomarker levels, or levels of cognitive performance and decline in a sub-sample from the general population. These results support previous studies suggesting an association of IL1RAP with disease intensity of AD.

Detaljer

Författare
  • Anna Zettergren
  • Kina Höglund
  • Silke Kern
  • Valgeir Thorvaldsson
  • Msc Johan Skoog
  • Oskar Hansson
  • Niels Andreasen
  • Nenad Bogdanovic
  • Kaj Blennow
  • Ingmar Skoog
  • Henrik Zetterberg
Enheter & grupper
Externa organisationer
  • Sahlgrenska University Hospital
  • Göteborgs universitet
  • Karolinska University Hospital
  • University College London
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Medicinsk genetik
  • Neurovetenskaper
Originalspråkengelska
Artikelnummer2460
TidskriftScientific Reports
Volym9
Utgivningsnummer1
StatusPublished - 2019 feb 21
PublikationskategoriForskning
Peer review utfördJa