Effect of Codonopsis and Glycyrrhiza glycoconjugates on migration and membrane potential of IEC-6 cells
10.3867/j.issn.1000-3002.2015.06.007
- VernacularTitle:党参和甘草糖复合物对IEC-6细胞迁移和膜电位的影响
- Author:
Ruliu LI
;
Yuzhu TAO
;
Peng WEN
;
Xiaohua TU
;
Jiazhong CAI
;
Weiwen CHEN
- Publication Type:Journal Article
- Keywords:
Codonopsis;
Glycyrrhiza;
glycoconjugates;
intestinal epithelial cells;
cell migration;
membrane potential
- From:
Chinese Journal of Pharmacology and Toxicology
2015;(6):917-923
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To observe the effect of Codonopsis and Glycyrrhiza glycoconjugates on migration and membrane potential of small intestinal epithelial cells(IEC-6),and to explore the promoting effects of Yiqi jianpi herb Codonopsis and Glycyrrhiza on gastrointestinal mucosal injury repair and the underlying mechanisms. METHODS Under normal conditions or loaded with the inhibitor of potassium channel 4-aminopyridine(4-AP),IEC-6 cells were treated with Codonopsis and Glycyrrhiza glycoconjugates (25-200 mg · L-1) for 24 h,respectively. IEC-6 cell migration was observed by the phase contrast microscope and cell membrane potential was detected by flow cytometry. RESULTS Codonopsis and Glycyrrhiza glycoconjugates (50 and 100 mg · L-1) increased the number of migrated IEC-6 cell compared with normal control group(P<0.01,P<0.05). Compared with normal control group,4-AP reduced the number of migrated IEC-6 cell(P<0.01). Codonopsis and Glycyrrhiza glycoconjugates (50-200 mg · L-1)reversed cell migration inhibited by 4-AP significantly when compared with 4-AP model group(P<0.01). The results of flow cyometry analysis showed that the cell membrane poten?tial was increased after treatment with Codonopsis and Glycyrrhiza glycoconjugates(50 mg · L-1)compared with normal control group and resulted in an increase in cell membrane hyperpolarization(P<0.01). Compared with normal control group,4-AP decreased the cell membrane potential(P<0.01)and resulted in cell membrane depolarization. Also,compared with 4-AP model group,cell membrane depolarization induced by 4-AP was reversed by treatment with Codonopsis and Glycyrrhiza glycoconjugates(100 and 200 mg·L-1). CONCLUSION Codonopsis and Glycyrrhiza glycoconjugates may promote gastrointestinal mucosal injury repair and the mechanisms may involve the activation of signaling pathways by affecting polyamine-dependent intestinal epithelial cell migration voltage-gated K+channels.
