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首页> 外文期刊>Anticancer Research: International Journal of Cancer Research and Treatment >Gene transfer of inhibitor kappaB in human lung cancer cell line NCI-H460 inhibits tumorigenesis and angiogenesis in vivo.
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Gene transfer of inhibitor kappaB in human lung cancer cell line NCI-H460 inhibits tumorigenesis and angiogenesis in vivo.

机译:抑制剂kappaB在人肺癌细胞NCI-H460中的基因转移在体内抑制肿瘤发生和血管生成。

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摘要

BACKGROUND: Nuclear factor kappaB (NFkappaB) is an inducible and ubiquitously expressed transcription factor which is involved in cell survival, differentiation and growth and, thus, has also been implicated in tumor formation and development. Research on the effect of NFkappaB in inhibiting cancer cell growth, however, remains controversial. MATERIALS AND METHODS: We investigated the effects of overexpressed IkappaBalpha on the proliferation of the human lung cancer cell line H460 in vitro and in vivo using IkappaBalpha-expressing adenovirus. RESULTS: The results suggested that the infection of AdIkappaBalpha blocked NFkappaB activity in H460 cells and significantly inhibited cell proliferation by inducing apoptosis. An in vivo study showed the tumor incidence to be significantly lower in mice implanted with H460 cells infected with AdIkappaBa. For established H460 tumor, the intratumoral injection of AdIkappaBalpha also inhibited the tumor growth due to both a blockade of the NFkappaB activity and aninhibition of the VEGF expression. CONCLUSION: Adenovirus-mediated IkappaBalpha gene transfer is a promising cancer treatment strategy.
机译:背景:核因子κB(NFkappaB)是一种可诱导且广泛表达的转录因子,参与细胞存活,分化和生长,因此也与肿瘤的形成和发展有关。然而,关于NFκB在抑制癌细胞生长中的作用的研究仍存在争议。材料与方法:我们使用表达IkappaBalpha的腺病毒在体外和体内研究了过表达的IkappaBalpha对人肺癌细胞H460增殖的影响。结果:AdIkappaBalpha的感染可阻断H460细胞中的NFkappaB活性,并通过诱导凋亡显着抑制细胞增殖。一项体内研究表明,在植入了感染了AdIkappaBa的H460细胞的小鼠中,肿瘤发生率显着降低。对于已建立的H460肿瘤,肿瘤内注射AdIkappaBalpha也会由于NFkappaB活性的阻断和VEGF表达的抑制而抑制肿瘤的生长。结论:腺病毒介导的IkappaBalpha基因转移是一种有前途的癌症治疗策略。

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