Acyclic cucurbit[n]urils-based supramolecular encapsulation for enhancing the protective effect of capsaicin on gastric mucosa and reducing irritation
文献类型: 外文期刊
作者: Zhou, Jiawei 1 ; Zhang, Ruihao 2 ; Lv, Pin 1 ; Zhang, Shuqing 1 ; Zhang, Yazhou 1 ; Yang, Jing 1 ; Yang, Bo 1 ;
作者机构: 1.Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan, Peoples R China
2.Yunnan Acad Agr Sci, Hort Res Inst, Kunming 650205, Yunnan, Peoples R China
3.Yunnan Acad Agr Sci, Ind Crop Res Inst, Kunming 650205, Yunnan, Peoples R China
关键词: Acyclic cucurbit[n]urils; Capsaicin; Inclusion complex; Bioavailability; Gastric mucosal injury; Toxicity
期刊名称:INTERNATIONAL JOURNAL OF PHARMACEUTICS ( 影响因子:6.51; 五年影响因子:6.274 )
ISSN: 0378-5173
年卷期: 2022 年 626 卷
页码:
收录情况: SCI
摘要: Capsaicin (CAP) is an alkaloid isolated from pepper fruit, which possesses various pharmacological activities including antioxidant, anti-inflammatory, antibacterial and gastric mucosa protection. However, its inherent poor aqueous solubility and strong irritation impede the further clinical application. In our study, acyclic cucurbit [n]urils (ACBs, M1, M2 and M3) were rationally utilized to prepare a series of CAP inclusion complexes to improve the bioavailability and reduce stimulation. Their properties and inclusion behaviors were further investigated by multiple characterization methods, the data indicated that the inclusion complexes of ACBs/CAP were formed by a stoichiometric ratio of 2:1 with strong binding interaction. After complexation, the solubility of CAP was significantly increased by 12,076 times and its antioxidant activity also increased. Moreover, the anti-inflammatory activity and the ability to prevent gastric mucosal injury were both significantly improved, and the inhibition rate of nitric oxide (NO) and interleukin-1 beta (IL-1 beta) has been effectively improved while cytotoxicity against human normal hepatocytes cell (LO2), human lung fibroblasts cell (HLF) and the human gastric mucosal cell (GES-1) was greatly attenuated. Confocal laser scanning microscope (CLSM) images indicated that the complexes could be efficiently internalized by GES-1 cells and primarily located in cytoplasm. In vivo model of mouse, our complexes exhibited excellent biosafety. In summary, our study may provide a promising new strategy for the further clinical application of CAP.
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