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Wen Z, Kang L, Fu H, Zhu S, Ye X, Yang X, Zhang S, Hu J, Li X, Chen L, Hu Y, Yang X. Oral delivery of porous starch-loaded bilayer microgels for controlled drug delivery and treatment of ulcerative colitis. Carbohydr Polym 2023; 314:120887. [PMID: 37173037 DOI: 10.1016/j.carbpol.2023.120887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/16/2023] [Accepted: 04/03/2023] [Indexed: 05/15/2023]
Abstract
We prepared one type of bilayer microgels for oral administration with three effects: pH responsiveness, time lag, and colon enzyme degradation. Combined with the dual biological effects of curcumin (Cur) for reducing inflammation and promoting repair of colonic mucosal injury, targeted colonic localization and release of Cur according to the colonic microenvironment were enhanced. The inner core, derived from guar gum and low-methoxyl pectin, afforded colonic adhesion and degradation behavior; the outer layer, modified by alginate and chitosan via polyelectrolyte interaction, achieved colonic localization. The porous starch (PS)-mediated strong adsorption allowed Cur loading in inner core to achieve a multifunctional delivery system. In vitro, the formulations exhibited good bioresponses at different pH conditions, potentially delaying Cur release in the upper gastrointestinal tract. In vivo, dextran sulfate sodium-induced ulcerative colitis (UC) symptoms were significantly alleviated after oral administration, accompanied by reduced levels of inflammatory factors. The formulations facilitated colonic delivery, allowing Cur accumulation in colonic tissue. Moreover, the formulations could alter gut microbiota composition in mice. During Cur delivery, each formulation increased species richness, decreased pathogenic bacterial content, and afforded synergistic effects against UC. These PS-loaded bilayer microgels, exhibiting excellent biocompatibility, multi-bioresponsiveness, and colon targeting, could be beneficial in UC therapy, allowing development into a novel oral formulation.
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Affiliation(s)
- Zhijie Wen
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China
| | - Li Kang
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China
| | - Hudie Fu
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China
| | - Shengpeng Zhu
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China
| | - Xuexin Ye
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China
| | - Xuedan Yang
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China
| | - Shangwen Zhang
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China
| | - Jie Hu
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China
| | - Xiaojun Li
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China
| | - Lvyi Chen
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China
| | - Yan Hu
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China.
| | - Xinzhou Yang
- School of Pharmaceutical Science, South-Central MinZu University, Wuhan 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education, South-Central MinZu University, Wuhan 430074, PR China; Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, South-Central MinZu University, Wuhan 430074, PR China.
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