Salt Sensitivity of Angiogenesis Inhibition-Induced Blood Pressure Rise: Role of Interstitial Sodium Accumulation?

Lankhorst S, Severs D, Marko L, Rakova N, Titze J, Mueller DN, Danser AHJ, Van Den Meiracker AH (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Hypertension American Heart Association

Book Volume: 69

Pages Range: 919-926

Journal Issue: 5

DOI: 10.1161/HYPERTENSIONAHA.116.08565

Abstract

In response to salt loading, Na+ and Cl- accumulate in the skin in excess of water, stimulating skin lymphangiogenesis via activation of the mononuclear phagocyte system cell-derived vascular endothelial growth factor-C-vascular endothelial growth factor type 3 receptor signaling pathway. Inhibition of this pathway results in salt-sensitive hypertension. Sunitinib is an antiangiogenic, anticancer agent that blocks all 3 vascular endothelial growth factor receptors and increases blood pressure. We explored the salt dependency of sunitinib-induced hypertension and whether impairment of skin lymphangiogenesis is an underlying mechanism. Normotensive Wistar-Kyoto rats were exposed to a normal or high salt with or without sunitinib administration. Sunitinib induced a 15 mm Hg rise in telemetrically measured blood pressure, which was aggravated by a high-salt diet (HSD), resulting in a decline of the slope of the pressure-natriuresis curve. Without affecting body weight, plasma Na+ concentration or renal function, Na+ and Cl- skin content increased by 31% and 32% with the high salt and by 49% and 50% with the HSD plus sunitinib, whereas skin water increased by 17% and 24%, respectively. Skin mononuclear phagocyte system cell density increased both during sunitinib and a HSD, but no further increment was seen when HSD and sunitinib were combined. HSD increased skin lymphangiogenesis, while sunitinib tended to decrease lymphangiogenesis, both during a normal-salt diet and HSD. We conclude that sunitinib induces hypertension that is aggravated by high salt intake and not accompanied by impaired skin lymphangiogenesis.

Authors with CRIS profile

Jens Titze Professur für Elektrolyt- und Kreislaufforschung

Involved external institutions

Max-Delbrück-Centrum für Molekulare Medizin / Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch DE Germany (DE) Erasmus University Medical Center (MC) NL Netherlands (NL)

How to cite

APA:

Lankhorst, S., Severs, D., Marko, L., Rakova, N., Titze, J., Mueller, D.N.,... Van Den Meiracker, A.H. (2017). Salt Sensitivity of Angiogenesis Inhibition-Induced Blood Pressure Rise: Role of Interstitial Sodium Accumulation? Hypertension, 69(5), 919-926. https://doi.org/10.1161/HYPERTENSIONAHA.116.08565

MLA:

Lankhorst, Stephanie, et al. "Salt Sensitivity of Angiogenesis Inhibition-Induced Blood Pressure Rise: Role of Interstitial Sodium Accumulation?" Hypertension 69.5 (2017): 919-926.

BibTeX: Download