Anti-Angiogenic Effect of Nelumbo nucifera Leaf Extracts in Human Umbilical Vein Endothelial Cells with Antioxidant Potential

Title
Anti-Angiogenic Effect of Nelumbo nucifera Leaf Extracts in Human Umbilical Vein Endothelial Cells with Antioxidant Potential
Author(s)
김명희이종숙슈리티슈클라김정애
Keywords
REGULATED KINASE PHOSPHORYLATION; OXIDATIVE STRESS; NITRIC-OXIDE; IN-VITRO; LEAVES; CONSTITUENTS; INHIBITION; DAMAGE
Issue Date
201502
Publisher
PUBLIC LIBRARY SCIENCE
Citation
PLOS ONE, v.10, no.2
Abstract
Nelumbo nucifera Gaertn (Nymphaeaceae) has long been used as a traditional herb in Chinese, Japanese, Indian, and Korean medicinal practices since prehistoric times and flourishes today as the primary form of medicine. This study reports for the first time the potent ability of N. nucifera leaf extracts to inhibit vascular endothelial growth factor (VEGF)-induced angiogenesis in vitro and in vivo, as well as their antioxidant efficacy in various scavenging models and an analysis of their chemical composition. In vivo anti-angiogenic activity was evaluated in a chick chorioallantoic membrane (CAM) model using fertilized chicken eggs, in human umbilical vein endothelial cells (HUVECs) by using cell viability, cell proliferation and tube formation assays, and by determining intracellular reactive oxygen species (ROS) in vitro. The antioxidant efficacy of N. nucifera leaf extracts was determined in various scavenging models, including total phenolic and flavonoid content. The chemical composition of N. nucifera leaf extracts was determined by GC-MS analysis, which revealed the presence of different phytochemicals. The IC50 values for the DPPH radical scavenging activities of water and methanol extracts were found to be 1699.47 and 514.36 mu g ml(-1), and their total phenolic and flavonoid contents were 85.01 +/- 2.32 and 147.63 +/- 2.23 mg GAE g dry mass(-1) and 35.38 +/- 1.32 and 41.86 +/- 1.07 mg QA g dry mass(-1), respectively. N. nucifera leaf extracts (10-100 mu g ml(-1)) exhibited significant dose-dependent inhibition of VEGF-induced angiogenesis, as well as VEGF-induced proliferation and tube formation in HUVECs. In this study, N. nucifera leaf extracts displayed potent antioxidant and inhibitory effects on VEGF-induced angiogenesis. N. nucifera exerted an inhibitory effect on VEGF-induced proliferation and tube formation, as well as CAM angiogenesis in vivo. Moreover, N. nucifera leaf extracts significantly blocked VEGF-induced ROS production in HUVECs, confirming their possible anti-angiogenic mechanism.
URI
http://hdl.handle.net/YU.REPOSITORY/33577http://dx.doi.org/10.1371/journal.pone.0118552
ISSN
1932-6203
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자연자원대학 > 식품공학과 > Articles
약학대학 > 약학부 > Articles
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