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Engineered Turmeric-Derived Nanovesicles for Ulcerative Colitis Therapy by Attenuating Oxidative Stress and
Guihong Lu1,2, Shanming Lu3, Haibing Dai3
1Department of Neurosurgery, Health Science Center, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China.
None:
Inflammation and oxidative stress are important features of traumatic ulcerative colitis (UC). Turmeric has been used as a dietary and functional ingredient for its potent anti-inflammatory effects in UC therapy. However, its practical effectiveness is hindered by limited reactive oxygen species (ROS) elimination properties. To address this, we constructed a unique treatment agent by growing cerium oxide (CeO2) nanocrystals on the membranes of turmeric-derived nanovesicles (TNVs), named as TNV-Ce. The resulted TNV-Ce could suppress inflammation and exhibit exceptional ROS-scavenging activity, which was validated both in lipopolysaccharide-induced macrophages and dextran sulfate sodium salt-induced chronic colitis mouse model. Following oral administration, TNV-Ce significantly accumulated at inflamed sites, effectively eliminating ROS and inhibiting pro-inflammatory cytokines for synergistic action against UC.
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