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Paternal chronic colitis causes epigenetic inheritance of susceptibility to colitis.

Published version
Peer-reviewed

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Authors

Tschurtschenthaler, Markus 
Kachroo, Priyadarshini 
Heinsen, Femke-Anouska 
Adolph, Timon Erik 
Rühlemann, Malte Christoph 

Abstract

Inflammatory bowel disease (IBD) arises by unknown environmental triggers in genetically susceptible individuals. Epigenetic regulation of gene expression may integrate internal and external influences and may thereby modulate disease susceptibility. Epigenetic modification may also affect the germ-line and in certain contexts can be inherited to offspring. This study investigates epigenetic alterations consequent to experimental murine colitis induced by dextran sodium sulphate (DSS), and their paternal transmission to offspring. Genome-wide methylome- and transcriptome-profiling of intestinal epithelial cells (IECs) and sperm cells of males of the F0 generation, which received either DSS and consequently developed colitis (F0(DSS)), or non-supplemented tap water (F0(Ctrl)) and hence remained healthy, and of their F1 offspring was performed using reduced representation bisulfite sequencing (RRBS) and RNA-sequencing (RNA-Seq), respectively. Offspring of F0(DSS) males exhibited aberrant methylation and expression patterns of multiple genes, including Igf1r and Nr4a2, which are involved in energy metabolism. Importantly, DSS colitis in F0(DSS) mice was associated with decreased body weight at baseline of their F1 offspring, and these F1 mice exhibited increased susceptibility to DSS-induced colitis compared to offspring from F0(Ctrl) males. This study hence demonstrates epigenetic transmissibility of metabolic and inflammatory traits resulting from experimental colitis.

Description

Keywords

Animals, Colitis, DNA Methylation, Disease Models, Animal, Epigenesis, Genetic, Female, Genetic Predisposition to Disease, Genome-Wide Association Study, Inflammatory Bowel Diseases, Male, Mice

Journal Title

Sci Rep

Conference Name

Journal ISSN

2045-2322
2045-2322

Volume Title

6

Publisher

Springer Science and Business Media LLC
Sponsorship
Wellcome Trust (106260/Z/14/Z)
European Research Council (260961)
This study was carried out as part of the Research Training Group “Genes, Environment and Inflammation”, supported by the Deutsche Forschungsgemeinschaft (RTG 1743/1) of which A.F. is the spokesperson, the European Research Council under the European Community’s Seventh Framework Programme (FP7/2007–2013)/ERC Grant agreement no. 260961 (A.K.), the Austrian Science Fund and Ministry of Science P21530-B18 and START Y446-B18 (A.K.), the Wellcome Trust (investigator award 106260/Z/14/Z) to A.K., the Cambridge Biomedical Research Centre (A.K.), a fellowship from the European Crohn’s and Colitis Organisation (M.T. and T.E.A.) and a DOC fellowship from the Austrian Academy of Sciences (J.K.).