Pneumonia can lead to high morbidity and mortality secondary to uncontrolled
inflammation of the lung tissue. Blocking
cytokine storm storms may be the key to saving the life of patients with severe
pneumonia. According to the medicinal guide theory of
Traditional Chinese Medicine (TCM) and the inherent affinity with macrophages for the site of
inflammation, we constructed the drug delivery platform (MNPs) derived from macrophage-membrane encapsulated reaction
oxygen species (ROS)-responsive Platycodon grandiflorum
polysaccharides (PGP) nanoparticles (PNPs) to calm the
cytokine storm and improve
lung inflammation. By loading the
anti-inflammatory agent Curcumin (Cur), we demonstrated that MNPs@Cur significantly attenuated
inflammation and
cytokine storm syndrome in
acute lung injury (ALI) mice by suppressing pro-inflammatory factor production and inflammatory cell infiltration. Interestingly, we observed that the PNPs also have potent pulmonary targeting ability compared to other
polysaccharide carriers, which is in line with the medicinal guide theory of TCM. Our study revealed the rational design of drug delivery platforms to improve the treatment of
lung injury, which inherits and develops the important theories of TCM through the perfect combination of guide theory and biomimetic nanotechnology and provides the experimental scientific basis for the clinical application of channel ushering drugs.