@article{APS7288,
author = {Guang-fa Wang and Shao-yu Wu and Wei Xu and Hong Jin and Zheng-guang Zhu and Zhong-huang Li and Yuan-xin Tian and Jia-jie Zhang and Jin-jun Rao and Shu-guang Wu},
title = {Geniposide inhibits high glucose-induced cell adhesion through the NF-κB signaling pathway in human umbilical vein endothelial cells},
journal = {Acta Pharmacologica Sinica},
volume = {31},
number = {8},
year = {2016},
keywords = {},
abstract = {Aim: To investigate whether geniposide, an iridoid glucoside extracted from gardenia jasminoides ellis fruits, inhibits cell adhesion to human umbilical vein endothelial cells (HUVECs) induced by high glucose and its underlying mechanisms.
Methods: HUVECs were isolated from human umbilical cords and cultured. The adhesion of monocytes to HUVECs was determined using fluorescence-labeled monocytes. The mRNA and protein levels of vascular cell adhesion molecule-1 (VCAM-1) and endothelial selectin (E-selectin) were measured using real-time RT-PCR and ELISA. Reactive oxygen species (ROS) production was measured using a fluorescent probe. The amounts of nuclear factor-kappa B (NF-κB) and inhibitory factor of NF-κB (IκB) were determined using Western blot analysis. The translocation of NF-κB from the cytoplasm to the nucleus was determined using immunofluorescence.
Results: Geniposide (10–20 μmol/L) inhibited high glucose (33 mmol/L)-induced adhesion of monocytes to HUVECs in a dose-dependent manner. This compound (5–40 μmol/L) also inhibited high glucose-induced expression of VCAM-1 and E-selectin at the gene and protein levels. Furthermore, geniposide (5–20 μmol/L) decreased ROS production and prevented IκB degradation in the cytoplasm and NF-κB translocation from the cytoplasm to the nucleus in HUVECs.
Conclusion: Geniposide inhibits the adhesion of monocytes to HUVECs and the expression of CAMs induced by high glucose, suggesting that the compound may represent a new treatment for diabetic vascular injury. The mechanism underlying this inhibitory effect may be related to the inhibition of ROS overproduction and NF-κB signaling pathway activation by geniposide.},
issn = {1745-7254}, url = {http://www.chinaphar.com/article/view/7288}
}