The second-generation ALK inhibitor alectinib effectively induces apoptosis in human neuroblastoma cells and inhibits tumor growth in a TH-MYCN transgenic neuroblastoma mouse model.

The second-generation ALK inhibitor alectinib effectively induces apoptosis in human neuroblastoma cells and inhibits tumor growth in a TH-MYCN transgenic neuroblastoma mouse model.
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DOI:
10.1016/j.canlet.2017.04.022
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发表时间:
2017-08-01
期刊:
影响因子:
9.7
通讯作者:
Yang J
Yang J
中科院分区:
医学1区
文献类型:
--
作者:
Lu J;Guan S;Zhao Y;Yu Y;Woodfield SE;Zhang H;Yang KL;Bieerkehazhi S;Qi L;Li X;Gu J;Xu X;Jin J;Muscal JA;Yang T;Xu GT;Yang J

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大多数遗传性神经母细胞瘤 (NB) 病例中都会发生间变性淋巴瘤激酶 (ALK) 的激活种系突变,并且 ALK 的组成型活性激酶活性可促进 NB 中的细胞增殖和存活。因此,ALK激酶是NB的潜在治疗靶点。在这项研究中,我们发现新型 ALK 抑制剂 alectinib 通过阻断 ALK 介导的 PI3K/Akt/mTOR 信号传导,有效抑制野生型 ALK 或突变 ALK(F1174L 和 D1091N)的 NB 细胞系的细胞增殖并诱导细胞凋亡。此外,艾来替尼增强了阿霉素诱导的 NB 细胞的细胞毒性和凋亡。此外,艾来替尼在原位异种移植 NB 小鼠模型中诱导细胞凋亡。此外,在 TH-MYCN 转基因小鼠模型中,艾来替尼导致肿瘤生长减少并延长生存时间。这些结果表明艾来替尼可能是治疗 NB 的有前途的治疗剂。
Activating germline mutations of anaplastic lymphoma kinase (ALK) occur in most cases of hereditary neuroblastoma (NB) and the constitutively active kinase activity of ALK promotes cell proliferation and survival in NB. Therefore, ALK kinase is a potential therapeutic target for NB. In this study, we show that the novel ALK inhibitor alectinib effectively suppressed cell proliferation and induces apoptosis in NB cell lines with either wild-type ALK or mutated ALK (F1174L and D1091N) by blocking ALK-mediated PI3K/Akt/mTOR signaling. In addition, alectinib enhanced doxorubicin-induced cytotoxicity and apoptosis in NB cells. Furthermore, alectinib induced apoptosis in an orthotopic xenograft NB mouse model. Also, in the TH-MYCN transgenic mouse model, alectinib resulted in decreased tumor growth and prolonged survival time. These results indicate that alectinib may be a promising therapeutic agent for the treatment of NB.
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