Anesth Analg:局麻药可抑制人肝癌细胞的生长

2017-11-13 田磊 罂粟花

背景与目的:肝细胞癌(HCC)是一种治疗手段有限的侵袭性癌症。回顾性研究表明术中应用局麻药(LAS)可以减少癌症复发。此外,实验研究也表明LAS具有抑制肿瘤细胞生长的作用。因此,本研究的目的便是探讨LAS对人肝癌细胞的影响。

背景与目的:肝细胞癌(HCC)是一种治疗手段有限的侵袭性癌症。回顾性研究表明术中应用局麻药(LAS)可以减少癌症复发。此外,实验研究也表明LAS具有抑制肿瘤细胞生长的作用。因此,本研究的目的便是探讨LAS对人肝癌细胞的影响。

方法:在2个肝癌细胞株(HuH7 和 HepaRG)孵育48小时后,我们对2种局麻药(利多卡因和罗哌卡因)(10-2 ~ 10–6 M)的效应进行了研究。连同非监督全基因组表达谱分析和相关基因的实时定量聚合酶链反应一道我们进行了细胞存活率、细胞周期分析、细胞凋亡和衰老试验。

结果:我们发现LAS浓度依赖性降低了HuH7细胞株的生存能力和增殖能力(罗哌卡因:从5 ×10-3 M 时的92% [P <0.001] 到 10-4 M 时的40% [P = .02] ;利多卡因: 从87% [P < .001] 到 37% [P = .02])。而对HepaRG细胞株生存能力和增殖能力而言,从利多卡因5 ×10-3 M 时的58% [P <0.001] 到  10-4 M时的 29%  [P = .04] ,5 × 10-3 M罗哌卡因时其生存能力和增殖能力为59% [P < .001]。LAS对分化好的HepaRG细胞无影响。罗哌卡因降低关键细胞周期调控因子即细胞周期蛋白A2(cyclin A2)、细胞周期蛋白B1(cyclin B1)、细胞周期蛋白B2(cyclin B2)和细胞周期蛋白依赖性激酶1的mRNA水平及核内细胞增殖标记物MKI67的表达。利多卡因对细胞周期无明显影响但却使腺瘤性结肠息肉病mRNA水平增加了10倍(P < .01),其在这一过程中扮演了Wnt /β-catenin通路的拮抗剂的角色。两种LAS均增加Huh7和HepaRG祖细胞的凋亡(P < .01)。

结论:数据表明,LAS引起了肿瘤细胞的基因谱深刻的变化,包括引起细胞生长抑制和诱导凋亡作用的调节细胞周期相关基因的表达。

原始出处:

Le Gac G,et al.,Local Anesthetics Inhibit the Growth of Human Hepatocellular Carcinoma Cells.Anesth Analg. 2017 Nov;125(5):1600-1609.

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    2018-07-12 AspirantSuo
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    2018-09-27 经常头晕
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    2017-11-15 yxch36

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