Additive effect of apicidin and doxorubicin in sulfatase 1 expressing hepatocellular carcinoma in vitro and in vivo.

Additive effect of apicidin and doxorubicin in sulfatase 1 expressing hepatocellular carcinoma in vitro and in vivo.
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DOI:
10.1016/j.jhep.2008.12.031
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发表时间:
2009-06
影响因子:
25.7
通讯作者:
Roberts LR
Roberts LR
中科院分区:
医学1区
文献类型:
--
作者:
Lai JP;Sandhu DS;Moser CD;Cazanave SC;Oseini AM;Shire AM;Shridhar V;Sanderson SO;Roberts LR

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肝细胞癌 (HCC) 的化疗选择有限。肝素降解内硫酸酯酶 SULF1 具有肝脏肿瘤抑制因子的功能。我们研究了组蛋白脱乙酰酶抑制剂 apicidin 联合阿霉素对体外表达 SULF1 的 HCC 细胞和裸鼠中表达 SULF1 的异种移植物的影响。我们在体外和体内评估了单独使用 apicidin 或与阿霉素联合使用对 SULF1 转染的 Huh7 和 Hep3B 细胞中细胞凋亡、Caspase 活性以及 Erk 和 Akt 磷酸化的影响。 Apicidin 以剂量和时间依赖性方式诱导 HCC 细胞凋亡和 caspase 激活。 caspase 抑制剂 Z-Vad-fmk 显着抑制 Apicidin 诱导的 caspase 激活。 Apicidin 还降低了 Erk 和 Akt 的磷酸化。组成型活性 Mek1 和 Akt 的表达显着减少 apicidin 诱导的细胞凋亡。与单独使用阿匹西丁或多柔比星相比,阿霉素与阿匹西丁的组合在体外和体内均显着增加了表达 SULF1 的 Huh7 和 Hep3B 细胞的抗肿瘤效果。组蛋白脱乙酰酶抑制剂与阿霉素的组合可能是一种新颖且有前途的 HCC 治疗方式,特别是对于表达 SULF1 的 HCC。
There are limited chemotherapy options for hepatocellular carcinoma (HCC). The heparin-degrading endosulfatase SULF1 functions as a liver tumor suppressor. We investigated the effects of the histone deacetylase inhibitor apicidin in combination with doxorubicin in SULF1-expressing HCC cells in vitro and in SULF1-expressing xenografts in nude mice. We evaluated the effects of apicidin alone or combined with doxorubicin on apoptosis, caspase activity, and phosphorylation of Erk and Akt in SULF1-transfected Huh7 and Hep3B cells in vitro and in vivo. Apicidin induced HCC cell apoptosis and caspase activation in a dose- and time-dependent manner. Apicidin-induced caspase activation was significantly inhibited by the caspase inhibitor Z-Vad-fmk. Apicidin also decreased phosphorylation of both Erk and Akt. Expression of constitutively-active Mek1 and Akt significantly decreased apicidin-induced apoptosis. The combination of doxorubicin with apicidin significantly increased the anti-tumor effect in the SULF1-expressing Huh7 and Hep3B cells as compared to either apicidin or doxorubicin alone, both in vitro and in vivo. The combination of a histone deacetylase inhibitor with doxorubicin may be a novel and promising therapeutic modality for HCCs, particularly for SULF1-expressing HCCs.
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