@article{7a9448d42eaf4ae29055e68b06d69839,
title = "Titin-truncating variants affect heart function in disease cohorts and the general population",
abstract = "Titin-truncating variants (TTNtv) commonly cause dilated cardiomyopathy (DCM). TTNtv are also encountered in ∼1% of the general population, where they may be silent, perhaps reflecting allelic factors. To better understand TTNtv, we integrated TTN allelic series, cardiac imaging and genomic data in humans and studied rat models with disparate TTNtv. In patients with DCM, TTNtv throughout titin were significantly associated with DCM. Ribosomal profiling in rat showed the translational footprint of premature stop codons in Ttn, TTNtv-position-independent nonsense-mediated degradation of the mutant allele and a signature of perturbed cardiac metabolism. Heart physiology in rats with TTNtv was unremarkable at baseline but became impaired during cardiac stress. In healthy humans, machine-learning-based analysis of high-resolution cardiac imaging showed TTNtv to be associated with eccentric cardiac remodeling. These data show that TTNtv have molecular and physiological effects on the heart across species, with a continuum of expressivity in health and disease.",
keywords = "Animals, Cardiomyopathy, Dilated/genetics, Case-Control Studies, Cohort Studies, Connectin/genetics, Genetic Variation/genetics, Heart/physiology, High-Throughput Nucleotide Sequencing, Humans, Male, Rats",
author = "Sebastian Schafer and {de Marvao}, Antonio and Eleonora Adami and Fiedler, {Lorna R} and Benjamin Ng and Ester Khin and Rackham, {Owen J L} and {van Heesch}, Sebastiaan and Pua, {Chee J} and Miao Kui and Roddy Walsh and Upasana Tayal and Prasad, {Sanjay K} and Dawes, {Timothy J W} and Ko, {Nicole S J} and David Sim and Chan, {Laura L H} and Chin, {Calvin W L} and Francesco Mazzarotto and Barton, {Paul J} and Franziska Kreuchwig and {de Kleijn}, {Dominique P V} and Teresa Totman and Carlo Biffi and Nicole Tee and Daniel Rueckert and Valentin Schneider and Allison Faber and Vera Regitz-Zagrosek and Seidman, {Jonathan G} and Seidman, {Christine E} and Linke, {Wolfgang A} and Jean-Paul Kovalik and Declan O'Regan and Ware, {James S} and Norbert Hubner and Cook, {Stuart A}",
note = "Publisher Copyright: {\textcopyright} 2017 Nature America, Inc., part of Springer Nature. All rights reserved.",
year = "2017",
month = jan,
doi = "10.1038/ng.3719",
language = "English",
volume = "49",
pages = "46--53",
journal = "Nature Genetics",
issn = "1061-4036",
publisher = "Nature Research",
number = "1",
}