PUBLICATION

Integrating Genetic, Transcriptional, and Functional Analyses to Identify Five Novel Genes for Atrial Fibrillation

Authors
Sinner, M.F., Tucker, N.R., Lunetta, K.L., Ozaki, K., Smith, J.G., Trompet, S., Bis, J.C., Lin, H., Chung, M.K., Nielsen, J.B., Lubitz, S.A., Krijthe, B.P., Magnani, J.W., Ye, J., Gollob, M.H., Tsunoda, T., Müller-Nurasyid, M., Lichtner, P., Peters, A., Dolmatova, E., Kubo, M., Smith, J.D., Psaty, B.M., Smith, N.L., Jukema, J.W., Chasman, D.I., Albert, C.M., Ebana, Y., Furukawa, T., MacFarlane, P., Harris, T.B., Darbar, D., Dörr, M., Holst, A.G., Svendsen, J.H., Hofman, A., Uitterlinden, A., Gudnason, V., Isobe, M., Malik, R., Dichgans, M., Rosand, J., Van Wagoner, D.R., METASTROKE Consortium, AFGen Consortium, Benjamin, E.J., Milan, D.J., Melander, O., Heckbert, S., Ford, I., Liu, Y., Barnard, J., Olesen, M.S., Stricker, B.H., Tanaka, T., Kääb, S., Ellinor, P.T.
ID
ZDB-PUB-140816-14
Date
2014
Source
Circulation   130(15): 1225-35 (Journal)
Registered Authors
Ellinor, Patrick
Keywords
Genome Wide Association Study, atrial fibrillation, expression experiments, genetics, association studies, genetics, knockout models, zebrafish
MeSH Terms
  • Aged
  • Animals
  • Atrial Fibrillation/ethnology
  • Atrial Fibrillation/genetics*
  • Atrial Fibrillation/physiopathology
  • Chromosome Mapping
  • Connexin 43/genetics*
  • Connexin 43/physiology
  • Europe
  • Female
  • Gene Knockdown Techniques
  • Genetic Loci/physiology
  • Genetic Predisposition to Disease/ethnology
  • Genotype
  • Homeodomain Proteins/genetics*
  • Homeodomain Proteins/physiology
  • Humans
  • Japan
  • Male
  • Middle Aged
  • Muscle Proteins
  • Nuclear Proteins/genetics*
  • Nuclear Proteins/physiology
  • Quantitative Trait Loci
  • Repressor Proteins/genetics*
  • Repressor Proteins/physiology
  • T-Box Domain Proteins/genetics*
  • T-Box Domain Proteins/physiology
  • Transcription Factors/genetics
  • Transcription Factors/physiology
  • Ubiquitin-Protein Ligases/genetics*
  • Ubiquitin-Protein Ligases/physiology
  • Zebrafish
  • Zebrafish Proteins/genetics
  • Zebrafish Proteins/physiology
PubMed
25124494 Full text @ Circulation
Abstract
-Atrial fibrillation (AF) affects over 30 million individuals worldwide and is associated with an increased risk of stroke, heart failure, and death. AF is highly heritable, yet the genetic basis for the arrhythmia remains incompletely understood.
-To identify new AF-related genes, we utilized a multifaceted approach, combining large-scale genotyping in two ethnically distinct populations, cis-eQTL mapping, and functional validation. Four novel loci were identified in individuals of European descent near the genes NEURL (rs12415501, RR=1.18, 95%CI 1.13 - 1.23, p=6.5x10(-16)), GJA1 (rs13216675, RR=1.10, 95%CI 1.06 - 1.14, p=2.2x10(-8)), TBX5 (rs10507248, RR=1.12, 95%CI 1.08 - 1.16, p=5.7x10(-11)), and CAND2 (rs4642101, RR=1.10, 95%CI 1.06 - 1.14, p=9.8x10(-9)). In Japanese, novel loci were identified near NEURL (rs6584555, RR=1.32, 95%CI 1.26-1.39, p=2.0x10(-25)) and CUX2 (rs6490029, RR=1.12, 95%CI 1.08-1.16, p=3.9x10(-9)). The top SNPs or their proxies were identified as cis-eQTLs for the genes CAND2 (p=2.6x10(-19)), GJA1 (p=2.66x10(-6)), and TBX5 (p=1.36x10(-05)). Knockdown of the zebrafish orthologs of NEURL and CAND2 resulted in prolongation of the atrial action potential duration (17% and 45%, respectively).
-We have identified five novel loci for AF. Our results further expand the diversity of genetic pathways implicated in AF and provide novel molecular targets for future biological and pharmacological investigation.
Genes / Markers
Figures
Show all Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping