Transcriptome-Wide Analysis Identifies Novel Associations With Blood Pressure.

Hypertension

From the General and Interventional Cardiology, University Heart Center Hamburg, Germany (T.Z., C.M., A.J., M.K., J.T.N., R.B.S., F.O., S.B.); DZHK (German Centre for Cardiovascular Research), Germany (T.Z., C.S., C.M., P.S.W., A.T., A.S., A.K., A.J., M.K., J.T.N., T.K., R.B.S., M.D., T.M., K.J.L., S.B.F., U.L., A.Z., U.V., S.B.); Institute of Human Genetics (K.S., T.M., H.P.), Molecular Epidemiology (C.G., S.W.), and Institute of Epidemiology II (C.G., S.W.), Helmholtz Zentrum München, Germany; Institut für Medizinische Biometrie und Statistik, Universitätsklinikum Schleswig-Holstein, Germany (C.M., A.S., A.Z.); Institute for Translational Genomics and Population Sciences, UCLA Medical Center (S.K., J.I.R., X.G.); Preventive Cardiology and Preventive Medicine (P.S.W.), Institute of Clinical Chemistry and Laboratory Medicine (K.J.L.), and Center for Thrombosis and Hemostasis (P.S.W.), University Medical Center of the Johannes Gutenberg-University Mainz, Germany; Institute for Community Medicine (A.T.) and Department of Internal Medicine B (M.D., S.B.F.), University Medicine Greifswald, Germany; Interfaculty Institute for Genetics and Functional Genomics, University Greifswald, Germany (C.S., T.K., U.V., G.H.); Department of Internal Medicine (D.H., J.D.) and Department of Epidemiology and Prevention (Y.L.), Wake Forest School of Medicine, Winston-Salem, NC; Department of Epidemiology and Prevention, IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli IS, Italy (L.I., S.C.); Department of Cardiology and Pneumology, Charite, Universitätsmedizin Berlin, Germany (A.K., U.L.); National Institute for Health and Welfare, Helsinki, Finland (K.K.); Institute for Clinical Diabetology, German Diabetes Center, Duesseldorf, Germany (M.R., M.C.-K., C.H.); Department of Endocrinology and Diabetology, Medical Faculty Düsseldorf, Germany (M.R.); German Center for Diabetes Research (DZD), Munich, Germany (M.R., S.W., M.C.-K., C.H.); Sorbonne Universités, UPMC, INSERM, UMR_S 1166, ICAN Institute for Cardiometabolism and Nutrition, Paris, France (D.-A.T.); Institute of Human Genetics, Technische Universität München, Germany (T.M., P.W., H.P.); ZIK_FunGene, Universität Greifswald, Germany (U.V., G.H.); and Columbia University Medical Center, New York, NY (W.P.).

Published: October 2017

Hypertension represents a major cardiovascular risk factor. The pathophysiology of increased blood pressure (BP) is not yet completely understood. Transcriptome profiling offers possibilities to uncover genetics effects on BP. Based on 2 populations including 2549 individuals, a meta-analyses of monocytic transcriptome-wide profiles were performed to identify transcripts associated with BP. Replication was performed in 2 independent studies of whole-blood transcriptome data including 1990 individuals. For identified candidate genes, a direct link between long-term changes in BP and gene expression over time and by treatment with BP-lowering therapy was assessed. The predictive value of protein levels encoded by candidate genes for subsequent cardiovascular disease was investigated. Eight transcripts (, , , , , , and ) were identified jointly accounting for up to 13% (95% confidence interval, 8.7-16.2) of BP variability. Changes in , , , , , , and expression associated with BP changes-among these, gene expression was additionally correlated to measures of cardiac hypertrophy. Assessment of circulating CRIP1 (cystein-rich protein 1) levels as biomarkers showed a strong association with increased risk for incident stroke (hazard ratio, 1.06; 95% confidence interval, 1.03-1.09; =5.0×10). Our comprehensive analysis of global gene expression highlights 8 novel transcripts significantly associated with BP, providing a link between gene expression and BP. Translational approaches further established evidence for the potential use of CRIP1 as emerging disease-related biomarker.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5997260PMC
http://dx.doi.org/10.1161/HYPERTENSIONAHA.117.09458DOI Listing

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