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Inhalable gadofullerenol/[70] fullerenol as high-efficiency ROS scavengers for pulmonary fibrosis therapy


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Pulmonary fibrosis has become a fatal disease for its high incidence and few effective drugs available in clinic. In this study, gadofullerenol (GF-OH) and [70] fullerenol (C70-OH) nanoparticles (NPs) prepared by a one-pot reaction were designed as nanomedicines to treat this fatal disease. It was revealed that the inhalation of gadofullerenols and [70] fullerenols substantially alleviates the collagen deposition induced by acute lung injury. Based on detailed studies of oxidative stress parameters and transforming growth factor-β1#nbsp;(TGF-β1), we demonstrated they owned the antioxidant and anti-inflammatory functions for the modulation of ROS-mediated inflammation process. Thus the therapeutic effect may be associated with synergistic mechanism of scavenging free radicals and indirectly modulating TGF-β1#nbsp;expression. Moreover, GF-OH NPs were observed to show the superiority to C70-OH NPs both in vitro and in vivo due to the structural distinction. These results suggest the inhalable fullerenols are highly potential for clinical therapy of pulmonary fibrosis.

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