Discovery of Genetic Variation on Chromosome 5q22 Associated with Mortality in Heart Failure.

TitleDiscovery of Genetic Variation on Chromosome 5q22 Associated with Mortality in Heart Failure.
Publication TypeJournal Article
Year of Publication2016
AuthorsJ Smith, G, Felix, JF, Morrison, AC, Kalogeropoulos, A, Trompet, S, Wilk, JB, Gidlöf, O, Wang, X, Morley, M, Mendelson, M, Joehanes, R, Ligthart, S, Shan, X, Bis, JC, Wang, YA, Sjögren, M, Ngwa, J, Brandimarto, J, Stott, DJ, Aguilar, D, Rice, KM, Sesso, HD, Demissie, S, Buckley, BM, Taylor, KD, Ford, I, Yao, C, Liu, C, Sotoodehnia, N, van der Harst, P, Stricker, BHCh, Kritchevsky, SB, Liu, Y, J Gaziano, M, Hofman, A, Moravec, CS, Uitterlinden, AG, Kellis, M, van Meurs, JB, Margulies, KB, Dehghan, A, Levy, D, Olde, B, Psaty, BM, L Cupples, A, J Jukema, W, Djousse, L, Franco, OH, Boerwinkle, E, Boyer, LA, Newton-Cheh, C, Butler, J, Vasan, RS, Cappola, TP, Smith, NL
Corporate AuthorsCHARGE-SCD consortium, EchoGen consortium, QT-IGC consortium, CHARGE-QRS consortium
JournalPLoS Genet
Date Published2016 May

Failure of the human heart to maintain sufficient output of blood for the demands of the body, heart failure, is a common condition with high mortality even with modern therapeutic alternatives. To identify molecular determinants of mortality in patients with new-onset heart failure, we performed a meta-analysis of genome-wide association studies and follow-up genotyping in independent populations. We identified and replicated an association for a genetic variant on chromosome 5q22 with 36% increased risk of death in subjects with heart failure (rs9885413, P = 2.7x10-9). We provide evidence from reporter gene assays, computational predictions and epigenomic marks that this polymorphism increases activity of an enhancer region active in multiple human tissues. The polymorphism was further reproducibly associated with a DNA methylation signature in whole blood (P = 4.5x10-40) that also associated with allergic sensitization and expression in blood of the cytokine TSLP (P = 1.1x10-4). Knockdown of the transcription factor predicted to bind the enhancer region (NHLH1) in a human cell line (HEK293) expressing NHLH1 resulted in lower TSLP expression. In addition, we observed evidence of recent positive selection acting on the risk allele in populations of African descent. Our findings provide novel genetic leads to factors that influence mortality in patients with heart failure.

Alternate JournalPLoS Genet.
PubMed ID27149122
PubMed Central IDPMC4858216
Grant ListP30 DK063491 / DK / NIDDK NIH HHS / United States
R01 HG008155 / HG / NHGRI NIH HHS / United States
UL1 TR000124 / TR / NCATS NIH HHS / United States
UL1 TR001881 / TR / NCATS NIH HHS / United States