首页> 外文期刊>The Journal of Nutritional Biochemistry >Anti-angiogenic effects of lycopene through immunomodualtion of cytokine secretion in human peripheral blood mononuclear cells.
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Anti-angiogenic effects of lycopene through immunomodualtion of cytokine secretion in human peripheral blood mononuclear cells.

机译:番茄红素通过人外周血单核细胞中细胞因子分泌的免疫调节的抗血管生成作用。

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The carotenoid lycopene has been reported to possess anti-metastatic activity which may be associated with immunomodulation. However, the anti-angiogenic effects and mechanisms of action of lycopene have not been reported. In this study, we investigated the immunomodulatory effect on in vitro and ex vivo angiogenesis of lycopene. We found that the proliferation, migration and the matrigel tube formation of human umbilical vein endothelial cells (HUVECs) was remarkably inhibited by conditioned medium (CM) of human peripheral blood mononuclear cells (MNC-CM) stimulated with various dose (1-10 mumol/L) of lycopene (LP-MNC-CM). LP-MNC-CM treatment inhibited ex vivo angiogenesis, as revealed by chicken egg chorioallantoic membrane assay. We further examined the effects of lycopene stimulation on cytokine levels in MNC and showed that, as compared to the control, lycopene (10 mumol/L) significantly (P < .001) up-regulated interleukin (IL)-12 by 163% and interferon (IFN)- gamma by 531%. Furthermore, pre-treatment of HUVECs with dexamethasone, an IL-12 inhibitor, blocked the anti-angiogenic effects of LP-MNC-CM in parallel with inhibition of IL-12 and IFN- gamma induction in MNC. These results demonstrate that lycopene has a potent anti-angiogenic effect and that these effect may be associated with its up-regulation of IL-12 and IFN- gamma. All rights reserved, Elsevier.
机译:据报道,类胡萝卜素番茄红素具有抗转移活性,这可能与免疫调节有关。然而,尚未报道番茄红素的抗血管生成作用和作用机理。在这项研究中,我们调查了番茄红素在体外和离体血管生成中的免疫调节作用。我们发现,以不同剂量(1-10μmol)刺激的人外周血单个核细胞(MNC-CM)的条件培养基(CM)可显着抑制人脐静脉内皮细胞(HUVECs)的增殖,迁移和基质胶管形成。 / L)番茄红素(LP-MNC-CM)。 LP-MNC-CM治疗可抑制离体血管生成,如鸡蛋绒膜尿囊膜测定所显示的。我们进一步检查了番茄红素刺激对MNC中细胞因子水平的影响,并显示与对照相比,番茄红素(10μmol/ L)显着(P <.001)上调白介素(IL)-12 163%和干扰素(IFN)-γ降低531%。此外,用地塞米松(IL-12抑制剂)对HUVEC进行预处理可阻断LP-MNC-CM的抗血管生成作用,同时抑制MNC中的IL-12和IFN-γ诱导作用。这些结果表明番茄红素具有有效的抗血管生成作用,并且这些作用可能与其上调IL-12和IFN-γ有关。保留所有权利,Elsevier。

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