Preparation and optimization of ophiopogon polysaccharide liposome and its activity on Kupffer cells

作者：Fan, Yunpeng; Song, Xiaoping; Gao, Yuanyuan; Chen, Ying; Ma, Lin; Zhang, Weimin; Hou, Weifeng; Guo, Chao; Tong, Dewen^*

来源：International Journal of Pharmaceutics, 2014, 477(1-2): 421-430.

DOI：10.1016/j.ijpharm.2014.10.053

• Ophiopogon polysaccharide liposome
• Response surface methodology
• Kupffer cells
• Immune-enhancing activity

The purpose of this study was to prepare and optimize ophiopogon polysaccharide liposome (OPL), and to improve the immune-enhancing activity of ophiopogon polysaccharide (OP). OPL was prepared and optimized using the methods of reverse-phase evaporation and response surface methodology. The property was evaluated with particle size, zeta potential, and morphology. The results showed that the optimum preparation conditions were: soybean phosphatide to OP ratio of 9.5:1, soybean phospholipid to cholesterol ratio of 8:1, and chloroform to phosphate-buffered saline ratio of 3:1. Subsequently, the immune-enhancing activity of OPL on Kupffer cells (KCs) was performed. The results showed that OPL could significantly promote the phagocytosis of KCs, induce the secretion of nitric oxide, induced nitric oxide synthase, IL-6 and IL-12, and improve the expression of CD80 and CD86 compared with OP at 125-7.813 mu g mL(-1). These results indicated that the immune-enhancing activity of OP was significantly improved after encapsulated with liposome. Therefore, liposome would be expected to exploit into a new-type preparation of OP.

• 出版日期2014-12-30
• 单位西北农林科技大学