Anti-proliferative, pro-apoptotic and anti-invasive effect of EC/EV system in human osteosarcoma.

Anti-proliferative, pro-apoptotic and anti-invasive effect of EC/EV system in human osteosarcoma.
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Toxicarioside O 在结直肠癌细胞中以 Sirtuin-1 依赖性方式诱导保护性自噬

DOI:
10.18632/oncotarget.17089
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发表时间:
2017-08-15
期刊:
影响因子:
--
通讯作者:
Rossi F
Rossi F
中科院分区:
其他
文献类型:
--
作者:
Punzo F;Tortora C;Di Pinto D;Manzo I;Bellini G;Casale F;Rossi F

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骨肉瘤是儿童最常见和最具侵袭性的骨肿瘤。Endocannabinoid/Endovanilloid系统已被提出作为不同来源肿瘤的抗癌靶点。该系统由两种受体(CB 1和CB 2)、瞬时电位香草酸1(TRPV 1)通道及其配体和酶组成。CB 1主要表达于中枢神经系统,CB 2主要表达于免疫细胞和外周血细胞。本实验采用细胞凋亡和迁移实验研究了CB 2激动剂JWH-133和TRPV 1激动剂RTX对MG-63、U-2 OS、MNNG/HOS、Saos-2、KHOS/NP、Hs 888 Lu六种人骨肉瘤细胞系的作用。我们还通过Q-PCR和Western Blotting比较了这些化合物对Caspase-3、AKT、MMP-2和Notch-1调节的影响。我们观察到抗增殖,促凋亡,抗侵袭作用。我们的研究结果表明,CB 2刺激和TRPV 1激活,在不同的骨肉瘤细胞系中,可以作用于相同的途径,以获得相同的效果,表明内源性大麻素/内源性香草素系统作为一个新的治疗靶点在骨肉瘤。
Osteosarcoma is the most common and aggressive bone tumor in children. The Endocannabinoid/Endovanilloid system has been proposed as anticancer target in tumor of different origins. This system is composed of two receptors (CB1 and CB2), the Transient Potential Vanilloid 1 (TRPV1) channel and their ligands and enzymes. CB1 is expressed mainly in central nervous system while CB2 predominantly on immune and peripheral cells. We investigated the effects of JWH-133 (CB2 agonist) and RTX (TRPV1 agonist) in six human Osteosarcoma cell lines: MG-63, U-2OS, MNNG/HOS, Saos-2, KHOS/NP, Hs888Lu, by Apoptosis and Migration-Assay. We also compared the effects of these compounds on Caspase-3, AKT, MMP-2 and Notch-1 regulation by Q-PCR and Western Blotting. We observed an anti-proliferative, pro-apoptotic, anti-invasive effect. Our results show that both CB2 stimulation and TRPV1 activation, in different Osteosarcoma cell lines, can act on the same pathways to obtain the same effect, indicating the Endocannabinoid/Endovanilloid system as a new therapeutic target in Osteosarcoma.
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