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Abstract Title:

Ginsenoside Rg3 inhibits HIF-1α and VEGF expression in patient with acute leukemia via inhibiting the activation of PI3K/Akt and ERK1/2 pathways.

Abstract Source:

Int J Clin Exp Pathol. 2014 ;7(5):2172-8. Epub 2014 Apr 15. PMID: 24966925

Abstract Author(s):

Dongfeng Zeng, Jinliang Wang, Peiyan Kong, Cheng Chang, Jieping Li, Jiali Li

Article Affiliation:

Dongfeng Zeng

Abstract:

Aberrant angiogenesis is essential to the development and progression of leukemia. Ginsenoside Rg3 has been commonly used in anti-angiogenic therapy of solid tumors. This study aimed to investigate the anti-angiogenic effects of Rg3 in patients with acute leukemia. Bone marrow stromal cells derived from patients with acute leukemia were treated with Rg3 and the expression of vascular endothelial growth factor (VEGF) and hypoxia-inducible factor 1α (HIF-1α) was detected by RT-PCR and western blot analysis. The results showed that Rg3 inhibited VEGF and HIF-1α expression at both mRNA and protein levels in bone marrow stromal cells. In addition, Rg3 treatment led to reduced serum levels of HIF-1α and VEGF in patients with acute leukemia. Mechanistically, we demonstrated that Rg3 downregulated the phosphorylation of Akt and ERK1/2 in BMSCs. In conclusion, Rg3 exhibits anti-leukemia effect in part due to its anti-angiogenic activity via inhibiting PI3K/Akt and ERK1/2 pathways, which act to regulate the expression of HIF-1α and VEGF.

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Sayer Ji
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