Coan, PM;
Barrier, M;
Alfazema, N;
Carter, RN;
Marion De Procé, S;
Dopico, XC;
Garcia Diaz, A;
... Aitman, TJ; + view all
(2017)
Complement Factor B Is a Determinant of Both Metabolic and Cardiovascular Features of Metabolic Syndrome.
Hypertension
, 70
(3)
pp. 624-633.
10.1161/HYPERTENSIONAHA.117.09242.
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Abstract
CFB (complement factor B) is elevated in adipose tissue and serum from patients with type 2 diabetes mellitus and cardiovascular disease, but the causal relationship to disease pathogenesis is unclear. Cfb is also elevated in adipose tissue and serum of the spontaneously hypertensive rat, a well-characterized model of metabolic syndrome. To establish the role of CFB in metabolic syndrome, we knocked out the Cfb gene in the spontaneously hypertensive rat. Cfb-/-rats showed improved glucose tolerance and insulin sensitivity, redistribution of visceral to subcutaneous fat, increased adipocyte mitochondrial respiration, and marked changes in gene expression. Cfb-/-rats also had lower blood pressure, increased ejection fraction and fractional shortening, and reduced left ventricular mass. These changes in metabolism and gene expression, in adipose tissue and left ventricle, suggest new adipose tissue-intrinsic and blood pressure-independent mechanisms for insulin resistance and cardiac hypertrophy in the spontaneously hypertensive rat. In silico analysis of the human CFB locus revealed 2 cis-regulated expression quantitative trait loci for CFB expression significantly associated with visceral fat, circulating triglycerides and hypertension in genome-wide association studies. Together, these data demonstrate a key role for CFB in the development of spontaneously hypertensive rat metabolic syndrome phenotypes and of related traits in humans and indicate the potential for CFB as a novel target for treatment of cardiometabolic disease.
| Type: | Article |
|---|---|
| Title: | Complement Factor B Is a Determinant of Both Metabolic and Cardiovascular Features of Metabolic Syndrome |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1161/HYPERTENSIONAHA.117.09242 |
| Publisher version: | http://dx.doi.org/10.1161/HYPERTENSIONAHA.117.0924... |
| Language: | English |
| Additional information: | © 2017 The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited. |
| Keywords: | adipose tissue, blood pressure, complement system proteins, glucose, hypertension |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10053073 |
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