DC120, a novel AKT inhibitor, preferentially suppresses nasopharyngeal carcinoma cancer stem-like cells by downregulating Sox2.

DC120, a novel AKT inhibitor, preferentially suppresses nasopharyngeal carcinoma cancer stem-like cells by downregulating Sox2.
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DC120 是一种新型 AKT 抑制剂,通过下调 Sox2 优先抑制鼻咽癌干细胞样细胞。

DOI:
10.18632/oncotarget.3128
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发表时间:
2015-03-30
期刊:
影响因子:
--
通讯作者:
Zhu XF
Zhu XF
中科院分区:
其他
文献类型:
--
作者:
Qin J;Ji J;Deng R;Tang J;Yang F;Feng GK;Chen WD;Wu XQ;Qian XJ;Ding K;Zhu XF

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侧群(SP)含有肿瘤干细胞样细胞(CSLC)。在本研究中,我们对鼻咽癌(NPC)细胞系中的SP细胞进行了鉴定,发现SP细胞在体外具有更高的自我更新能力,在体内具有更强的致瘤性。AKT通路在鼻咽癌SP细胞中被激活。AKTATP结合部位的2-嘧啶-5-氨基噻唑抑制剂DC120可抑制FKHRL1和GSK-3β的磷酸化。DC120抑制SP组分、体外球体形成能力、原发异种移植瘤生长和继发异种移植瘤复发。这种抑制伴随着茎相关基因Sox2的表达减少,这是由于p27和miR-30a的诱导。DC120和CDDP联合用药在体内外对鼻咽癌细胞的抑制作用比单独用药更有效。DC120的临床评估是有必要的。
Side population (SP) contains cancer stem-like cells (CSLCs). In this study, we characterized SP cells from nasopharyngeal carcinoma (NPC) cell lines and found that SP cells had a higher self-renewal ability in vitro and greater tumorigenicity in vivo. The AKT pathway was activated in NPC SP cells. DC120, a 2-pyrimidyl-5-amidothiazole inhibitor of the ATP binding site of AKT, inhibited phosphorylation of FKHRL1 and GSK-3β. DC120 inhibited SP fraction, the sphere-forming ability in vitro and growth of primary xenografts as well as secondary xenografts’ tumor recurrence. This inhibition was accompanied by reduced expression of stem-related gene Sox2 due to induction of p27 and miR-30a. A combination of DC120 and CDDP more effectively inhibited NPC cells compared with monotherapy in vitro and in vivo. Clinical evaluation of DC120 is warranted.
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