Abstract:
:Elevated blood pressure (BP) is a major global risk factor for cardiovascular disease. Genome-wide association studies have identified several genetic variants at the NPR3 locus associated with BP, but the functional impact of these variants remains to be determined. Here we confirmed, by a genome-wide association study within UK Biobank, the existence of two independent BP-related signals within NPR3 locus. Using human primary vascular smooth muscle cells (VSMCs) and endothelial cells (ECs) from different individuals, we found that the BP-elevating alleles within one linkage disequilibrium block identified by the sentinel variant rs1173771 was associated with lower endogenous NPR3 mRNA and protein levels in VSMCs, together with reduced levels in open chromatin and nuclear protein binding. The BP-elevating alleles also increased VSMC proliferation, angiotensin II-induced calcium flux and cell contraction. However, an analogous genotype-dependent association was not observed in vascular ECs. Our study identifies novel, putative mechanisms for BP-associated variants at the NPR3 locus to elevate BP, further strengthening the case for targeting NPR-C as a therapeutic approach for hypertension and cardiovascular disease prevention.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Ren M,Ng FL,Warren HR,Witkowska K,Baron M,Jia Z,Cabrera C,Zhang R,Mifsud B,Munroe PB,Xiao Q,Townsend-Nicholson A,Hobbs AJ,Ye S,Caulfield MJdoi
10.1093/hmg/ddx375subject
Has Abstractpub_date
2018-01-01 00:00:00pages
199-210issue
1eissn
0964-6906issn
1460-2083pii
4430446journal_volume
27pub_type
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