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Nat Nanotechnol. 2018 Dec;13(12):1182-1190. doi: 10.1038/s41565-018-0254-4. Epub 2018 Sep 3.

Neutrophil membrane-coated nanoparticles inhibit synovial inflammation and alleviate joint damage in inflammatory arthritis.

Author information

1
Department of NanoEngineering and Moores Cancer Center, University of California San Diego, La Jolla, CA, USA.
2
Department of NanoEngineering and Moores Cancer Center, University of California San Diego, La Jolla, CA, USA. zhang@ucsd.edu.

Abstract

Rheumatoid arthritis is a common chronic inflammatory disorder and a major cause of disability. Despite the progress made with recent clinical use of anti-cytokine biologics, the response rate of rheumatoid arthritis treatment remains unsatisfactory, owing largely to the complexity of cytokine interactions and the multiplicity of cytokine targets. Here, we show a nanoparticle-based broad-spectrum anti-inflammatory strategy for rheumatoid arthritis management. By fusing neutrophil membrane onto polymeric cores, we prepare neutrophil membrane-coated nanoparticles that inherit the antigenic exterior and associated membrane functions of the source cells, which makes them ideal decoys of neutrophil-targeted biological molecules. It is shown that these nanoparticles can neutralize proinflammatory cytokines, suppress synovial inflammation, target deep into the cartilage matrix, and provide strong chondroprotection against joint damage. In a mouse model of collagen-induced arthritis and a human transgenic mouse model of arthritis, the neutrophil membrane-coated nanoparticles show significant therapeutic efficacy by ameliorating joint damage and suppressing overall arthritis severity.

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PMID:
30177807
DOI:
10.1038/s41565-018-0254-4

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