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国家自然科学基金(s81102853)

作品数:2 被引量:9H指数:2
发文基金:国家自然科学基金更多>>
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Potent anti-angiogenicactivity of B19—a mono-carbonyl analogue of curcumin被引量:3
2014年
AIM: The compound B19 (C21H22O5) is a newly synthesized, mono-carbonyl analog of curcumin that has exhibited potentialantitumor effects. This present study was performed to identify the anti-angiogenic activity of this compound. METHODS AND RESULTS: B19 inhibited migration and tube formation of human umbilical vein endothelial cells, and arrested microvessel outgrowth from rat aortic rings.ln addition, B19 suppressed the neovascularization of chicken chorioallantoic membrane. Mechanistic studies revealed that B19 suppressed the downstream protein kinase activation of vascular endothelial growth factor (VEGF) by decreasing phosphorylated forms of serine/threonine kinase Akt, extracellular signal-regulated kinase, and p38 mitogen-activated protein kinase, with or without stimulating vascular endothelial growth factor (VEGF). CONCLUSIONS: B 19 exerted anti-angiogenic activity in vitro and ex vivo, which suggests that it merits further investigation as a promising anticancer angiogenesis compound.
SUN LiLIU JinLIN Sen-SenSHI Wen-TingZHU JingLIANG GuangYUAN Sheng-Tao
DT-13, a saponin of dwarf lilyturf tuber, exhibits anti-cancer activity by down-regulating C-C chemokine receptor type 5 and vascular endothelial growth factor in MDA-MB-435 cells被引量:6
2014年
AIM: To investigate the anticancer activity of DT-13 under normoxia and determine the underlying mechanisms of action. METHODS: MDA-MB-435 cell proliferation, migration, and adhesion were performed to assess the anticancer activity of DT-13, a saponin from Ophiopogonjaponicus, in vitro. In addition, the effects of DT-13 on tumor growth and metastasis in vivo were evaluated by orthotopic implantation of MDA-MB-435 cells into nude mice; mRNA levels of vascular endothelial growth factor (VEGF), C-C chemokine receptor type 5 (CCR5) and hypoxia-inducible factor 1a (HIF-1a) were evaluated by real-time quantitative PCR; and CCR5 protein levels were detected by Western blot assay. RESULTS: At 0.01 to 1 umol·L -1, DT-13 inhibited MDA-MB-435 cell proliferation, migration, and adhesion significantly in vitro. DT-13 reduced VEGF and CCR5 mRNAs, and decreased CCR5 protein expression by down-regulating HIF-1 a. In addition, DT-13 inhibited MDA-MB-435 cell lung metastasis, and restricted tumor growth slightly in vivo. CONCLUSION: DT-13 inhibited MDA-MB-435 cell proliferation, adhesion, and migration in vitro, and lung metastasis in vivo by reducing VEGF, CCR5, and HIF-la expression.
ZHAO Ren-PingLIN Sen-SenYUAN Sheng-TaoYU Bo-YangBAI Xian-ShuSUN LiZHANG Lu-Yong
关键词:SAPONIN
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