Cancer Cell:旧研究,新方法,新型抗癌药物无任何毒副作用!

2014-10-16 佚名 生物谷

近日,刊登在国际杂志Cancer Cell上的一篇研究报告中,来自帝国理工学院的研究人员通过研究开发了一种名为DTP3的新型癌症药物,该药物在实验室检测中可以杀灭人类和小鼠机体中的骨髓瘤细胞而不引发任何毒性副作用,这种新型药物可以通过阻断癌细胞增殖的过程来抑制癌症的发展。 Guido Franzoso教授讲到,实验室研究揭示DTP3具有治疗多发性骨髓瘤及其它类型癌症病人的潜力,但是我们希望进

近日,刊登在国际杂志Cancer Cell上的一篇研究报告中,来自帝国理工学院的研究人员通过研究开发了一种名为DTP3的新型癌症药物,该药物在实验室检测中可以杀灭人类和小鼠机体中的骨髓瘤细胞而不引发任何毒性副作用,这种新型药物可以通过阻断癌细胞增殖的过程来抑制癌症的发展。

Guido Franzoso教授讲到,实验室研究揭示DTP3具有治疗多发性骨髓瘤及其它类型癌症病人的潜力,但是我们希望进行临床试验来证实这一结论,预期将在明年进行临床试验。DTP3的开发是基于研究人员研究癌细胞如何增殖及其如何永生而开发出来的,早在20世纪90年代,研究人员就发现一种名为NF-kB的核因子kB,其在机体炎性过程、免疫及压力应激上扮演着重要角色,而NF-kB在许多种癌症中都处于过度激活状态,其可以关闭细胞的正常代谢机制从而引发癌细胞产生。

许多制药公司和科学家都致力于研究NF-kB的抑制剂,但是研究人员开发的许多药物都并不能成功抑制NF-kB,因为开发的化合物在阻断癌细胞中NF-kB的同时,也会阻断健康细胞中被NF-kB控制的关键细胞过程,从而带来巨大的副作用。本文研究中研究人员采用了一种不同的方法,研究人员通过寻找NF-kB下游对于癌症具有特殊性的靶向基因,进而研究病人机体的多发性骨髓瘤细胞,最终鉴别出了一种名为GADD45β/MKK7的蛋白复合物,实验结果显示GADD45β/MKK7在癌症发展过程中扮演着重要作用。

为了寻找一种靶向作用NF-kB的安全策略,研究者通过对2万种分子进行筛选发现了两种可以干扰GADD45β/MKK7蛋白复合物的分子,后期经过纯化开发了名为DTP3的药物,该药物可以有效杀灭癌细胞而且对机体不产生任何副作用。

最后研究者Franzoso表示,很多年以来我们都知道NF-kB对于癌细胞非常关键,但是由于其对正常细胞也很关键,因此我们并不知道如何去特异性地阻断其发挥作用,本文研究中我们通过开发DTP3阻断NF-kB的GADD45β/MKK7片段来选择性的杀灭骨髓瘤细胞,这对于后期开发治疗多发性骨髓瘤的新型靶向疗法提供了新的思路和希望。

原始出处

Tornatore L1, Sandomenico A2, Raimondo D3, Low C4, Rocci A5, Tralau-Stewart C4, Capece D1, D'Andrea D3, Bua M6, Boyle E7, van Duin M8, Zoppoli P9, Jaxa-Chamiec A4, Thotakura AK1, Dyson J10, Walker BA7, Leonardi A11, Chambery A12, Driessen C13, Sonneveld P8, Morgan G7, Palumbo A5, Tramontano A14, Rahemtulla A6, Ruvo M15, Franzoso G16.Cancer-Selective Targeting of the NF-κB Survival Pathway with GADD45β/MKK7 Inhibitors.Cancer Cell. 2014 Oct 13.

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    2015-10-01 维他命
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    2014-10-18 sunylz

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