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Article Publish Status: FREE
Abstract Title:

Berberine-Loaded Carboxylmethyl Chitosan Nanoparticles Ameliorate DSS-Induced Colitis and Remodel Gut Microbiota in Mice.

Abstract Source:

Front Pharmacol. 2021 ;12:644387. Epub 2021 Apr 20. PMID: 33959013

Abstract Author(s):

Luqing Zhao, Xueying Du, Jiaxin Tian, Xiuhong Kang, Yuxin Li, Wenlin Dai, Danyan Li, Shengsheng Zhang, Chao Li

Article Affiliation:

Luqing Zhao

Abstract:

Inflammatory bowel disease (IBD) is a refractory disorder characterized by chronic and recurrent inflammation. The progression and pathogenesis of IBD is closely related to oxidative stress and irregularly high concentrations of reactive oxygen species (ROS). A new oxidation-responsive nano prodrug was constructed from a phenylboronic esters-modified carboxylmethyl chitosan (OC-B) conjugated with berberine (BBR) that degrades selectively in response to ROS. The optimized micelles exhibited well-controlled physiochemical properties and stability in a physiological environment. OC-B-BBR micelles could effectively encapsulate the anti-inflammatory drug berberine and exhibit ideal HO-triggered release behavior as confirmed bydrug loading and release studies. Theanti-inflammatory effect and regulation of gut microbiota caused by it were explored in mice with colitis induced by dextran sodium sulfate (DSS). The results showed that OC-B-BBR significantly ameliorated colitis symptoms and colon damage by regulating the expression levels of IL-6 and remodeling gut microbiota. In summary, this study exhibited a novel BBR-loaded Carboxylmethyl Chitosan nano delivery system which may represent a promising approach for improving IBD treatment.

Study Type : Animal Study

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