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Title: Efficient aortic lymphatic drainage is necessary for atherosclerosis regression induced by ezetimibe
Authors: Yeo, K.P.
Lim, H.Y. 
Thiam, C.H. 
Azhar, S.H. 
Tan, C. 
Tang, Y.
See, W.Q.
Koh, X.H.
Zhao, M.H.
Phua, M.L.
Balachander, A.
Tan, Y.
Lim, S.Y. 
Chew, H.S. 
Ng, L.G. 
Angeli, V. 
Issue Date: 2020
Publisher: American Association for the Advancement of Science
Citation: Yeo, K.P., Lim, H.Y., Thiam, C.H., Azhar, S.H., Tan, C., Tang, Y., See, W.Q., Koh, X.H., Zhao, M.H., Phua, M.L., Balachander, A., Tan, Y., Lim, S.Y., Chew, H.S., Ng, L.G., Angeli, V. (2020). Efficient aortic lymphatic drainage is necessary for atherosclerosis regression induced by ezetimibe. Science Advances 6 (50) : eabc2697. ScholarBank@NUS Repository.
Rights: Attribution-NonCommercial 4.0 International
Abstract: A functional lymphatic vasculature is essential for tissue fluid homeostasis, immunity, and lipid clearance. Although atherosclerosis has been linked to adventitial lymphangiogenesis, the functionality of aortic lymphatic vessels draining the diseased aorta has never been assessed and the role of lymphatic drainage in atherogenesis is not well understood. We develop a method to measure aortic lymphatic transport of macromolecules and show that it is impaired during atherosclerosis progression, whereas it is ameliorated during lesion regression induced by ezetimibe. Disruption of aortic lymph flow by lymphatic ligation promotes adventitial inflammation and development of atherosclerotic plaque in hypercholesterolemic mice and inhibits ezetimibe-induced atherosclerosis regression. Thus, progression of atherosclerotic plaques may result not only from increased entry of atherogenic factors into the arterial wall but also from reduced lymphatic clearance of these factors as a result of aortic lymph stasis. Our findings suggest that promoting lymphatic drainage might be effective for treating atherosclerosis. Copyright @ 2020 The Authors,
Source Title: Science Advances
ISSN: 2375-2548
DOI: 10.1126/sciadv.abc2697
Rights: Attribution-NonCommercial 4.0 International
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