Genes contributing to pain sensitivity in the normal population: an exome sequencing study

Frances M K Williams, Serena Scollen, Dandan Cao, Yasin Memari, Craig L Hyde, Baohong Zhang, Benjamin Sidders, Daniel Ziemek, Yujian Shi, Juliette Harris, Ian Harrow, Brian Dougherty, Anders Malarstig, Robert McEwen, Joel C Stephens, Ketan Patel, Cristina Menni, So-Youn Shin, Dylan Hodgkiss, Gabriela SurdulescuWen He, Xin Jin, Stephen B McMahon, Nicole Soranzo, Sally John, Jun Wang, Tim D Spector

Research output: Contribution to journalArticle (Academic Journal)peer-review

44 Citations (Scopus)

Abstract

Sensitivity to pain varies considerably between individuals and is known to be heritable. Increased sensitivity to experimental pain is a risk factor for developing chronic pain, a common and debilitating but poorly understood symptom. To understand mechanisms underlying pain sensitivity and to search for rare gene variants (MAF<5%) influencing pain sensitivity, we explored the genetic variation in individuals' responses to experimental pain. Quantitative sensory testing to heat pain was performed in 2,500 volunteers from TwinsUK (TUK): exome sequencing to a depth of 70× was carried out on DNA from singletons at the high and low ends of the heat pain sensitivity distribution in two separate subsamples. Thus in TUK1, 101 pain-sensitive and 102 pain-insensitive were examined, while in TUK2 there were 114 and 96 individuals respectively. A combination of methods was used to test the association between rare variants and pain sensitivity, and the function of the genes identified was explored using network analysis. Using causal reasoning analysis on the genes with different patterns of SNVs by pain sensitivity status, we observed a significant enrichment of variants in genes of the angiotensin pathway (Bonferroni corrected p = 3.8×10(-4)). This pathway is already implicated in animal models and human studies of pain, supporting the notion that it may provide fruitful new targets in pain management. The approach of sequencing extreme exome variation in normal individuals has provided important insights into gene networks mediating pain sensitivity in humans and will be applicable to other common complex traits.

Original languageEnglish
Pages (from-to)e1003095
JournalPLoS Genetics
Volume8
Issue number12
DOIs
Publication statusPublished - 2012

Keywords

  • Adult
  • Angiotensins
  • Base Sequence
  • Exome
  • Gene Expression Regulation
  • Gene Regulatory Networks
  • Genetic Predisposition to Disease
  • Hot Temperature
  • Humans
  • Male
  • Pain
  • Pain Threshold
  • Sensitivity and Specificity
  • Sequence Analysis, DNA
  • Signal Transduction

Fingerprint

Dive into the research topics of 'Genes contributing to pain sensitivity in the normal population: an exome sequencing study'. Together they form a unique fingerprint.

Cite this