Treatment of atherosclerosis by macrophage-biomimetic nanoparticles via targeted pharmacotherapy and sequestration of proinflammatory cytokines

Cheng Gao, Qiaoxian Huang, Conghui Liu, Cheryl H. T. Kwong, Ludan Yue, Jian-Bo Wan, Simon M. Y. Lee () and Ruibing Wang ()
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Cheng Gao: University of Macau
Qiaoxian Huang: University of Macau
Conghui Liu: University of Macau
Cheryl H. T. Kwong: University of Macau
Ludan Yue: University of Macau
Jian-Bo Wan: University of Macau
Simon M. Y. Lee: University of Macau
Ruibing Wang: University of Macau

Nature Communications, 2020, vol. 11, issue 1, 1-14

Abstract: Abstract Vascular disease remains the leading cause of death and disability, the etiology of which often involves atherosclerosis. The current treatment of atherosclerosis by pharmacotherapy has limited therapeutic efficacy. Here we report a biomimetic drug delivery system derived from macrophage membrane coated ROS-responsive nanoparticles (NPs). The macrophage membrane not only avoids the clearance of NPs from the reticuloendothelial system, but also leads NPs to the inflammatory tissues, where the ROS-responsiveness of NPs enables specific payload release. Moreover, the macrophage membrane sequesters proinflammatory cytokines to suppress local inflammation. The synergistic effects of pharmacotherapy and inflammatory cytokines sequestration from such a biomimetic drug delivery system lead to improved therapeutic efficacy in atherosclerosis. Comparison to macrophage internalized with ROS-responsive NPs, as a live-cell based drug delivery system for treatment of atherosclerosis, suggests that cell membrane coated drug delivery approach is likely more suitable for dealing with an inflammatory disease than the live-cell approach.

Date: 2020
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DOI: 10.1038/s41467-020-16439-7

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