Nat Biotechnol:研究开发出对抗癌症新组合疗法

2014-02-20 Robert Korneluk 《自然—生物技术》

加拿大癌症协会称,癌症是加拿大头号疾病,30%的死亡病例均为癌症所致。人们迫切需要新的有效药物,但在短时间内开发出新的抗癌疗法非常困难。渥太华大学的研究人员则另辟蹊径,将目前既存的实验性疗法加以组合来加速对抗癌症恶魔。发表在近期《自然—生物技术》上的科研证据表明,特定组合疗法对杀死癌细胞具有实效。【原文下载】 渥太华大学特聘教授、东安大略儿童医院(CHEO)研究所资深

加拿大癌症协会称,癌症是加拿大头号疾病,30%的死亡病例均为癌症所致。人们迫切需要新的有效药物,但在短时间内开发出新的抗癌疗法非常困难。渥太华大学的研究人员则另辟蹊径,将目前既存的实验性疗法加以组合来加速对抗癌症恶魔。发表在近期《自然—生物技术》上的科研证据表明,特定组合疗法对杀死癌细胞具有实效。【原文下载】

渥太华大学特聘教授、东安大略儿童医院(CHEO)研究所资深科学家罗伯特·科奈卢克期望尽快推动这一新的组合实验疗法进入临床试验。他坚信,新疗法已不再是“是否”有助于癌症患者的问题,而是一个“何时”将成为治疗标准的问题。

证据表明,有两种免疫疗法是最具希望的癌症治疗方法。第一种是SMAC拟态疗法,这是一种以凋亡抑制蛋白为基础的针对致癌基因的治疗方法。凋亡抑制蛋白由CHEO在19年前发现。第二种是活病毒疗法,亦称为溶瘤法,这是在渥太华兴起的一个独立研究领域。这两种免疫疗法目前已应用于临床试验,虽然进展令人鼓舞,但两者作为独立疗法,至今尚未表现出实质性的治疗效果。

科奈卢克领导的团队发现,将活病毒(或其他非病毒免疫刺激剂)与SMAC模拟物组合在一起,可协同或放大肿瘤杀伤效果,从而克服了单一疗法的局限。组合疗法与具有明显副作用的标准化疗方法完全不同。两种实验性癌症治疗新药组合后,在消灭肿瘤的同时不会对周围的健康组织造成伤害。

研究人员表示,这两种药物的组合使用或将节约数年的临床开发时间,从而使患者能更快地用上这些药物。研究小组假设,这种组合方式或更适合于特定癌症和具体用途。

原始出处:

Beug ST1, Tang VA1, Lacasse EC1, Cheung HH1, Beauregard CE1, Brun J1, Nuyens JP1, Earl N1, St-Jean M1, Holbrook J1, Dastidar H2, Mahoney DJ2, Ilkow C3, Le Boeuf F3, Bell JC4, Korneluk RG5.Smac mimetics and innate immune stimuli synergize to promote tumor death.Nat Biotechnol. 2014 Feb;32(2):182-90. doi: 10.1038/nbt.2806. Epub 2014 Jan 26.【原文下载】

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    2014-05-14 cathymary
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    2014-02-26 sunylz
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    2014-07-31 shock_melon
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    2014-09-11 liye789132251