BBC:肺癌治疗的里程碑新发现

2015-06-01 孟小猫 译 医学论坛网

2015年5月30日,据BBC新闻报道的一项新近研究称,肺癌治疗可使一些患者的生存期加倍,实属里程碑式的新发现。        Nivolumab可使隐藏与人体正常防御系统之下的癌细胞无所遁形,让其接受人体免疫系统的自发处理。        该结果来自纳入582例癌症患者的研究结论,在美国临床肿瘤学

2015年5月30日,据BBC新闻报道的一项新近研究称,肺癌治疗可使一些患者的生存期加倍,实属里程碑式的新发现。


        
Nivolumab可使隐藏与人体正常防御系统之下的癌细胞无所遁形,让其接受人体免疫系统的自发处理。
        
该结果来自纳入582例癌症患者的研究结论,在美国临床肿瘤学会中发布,被描述为“给患者带来新希望”的研究进展。
        
肺癌是常见癌症种类中致死率最高的癌症类型,每年死于肺癌的人数高达1600万人口。
        
之所以难以治疗,是因为当患者被确诊为肺癌时,已经处于晚期。同时,很多患者具有吸烟史,这使得很多患者不适合立即手术。
        
自然防御
        
免疫系统能够自发的对抗感染,也可以抗击部分异常的机体组织或细胞,诸如癌症。
        
然而,肿瘤本身也颇具灵性,常常与人体自身的防御系统“躲猫猫”,使其难以察觉。
        
它们的狡猾之处还在于,能够产生一种称为PD-L1的蛋白,它可将人体免疫体统的靶点移花接木。
        
Nivolumab是一种称为“抑制剂”的有效治疗药物,由制药公司生产。
        
该药具备扭转癌症细胞转移靶点的功能,令癌细胞失去保护,在免疫系统中无所遁形。
        
该项研究是在美国与欧洲进行的,受试者均为肺癌患者,且对现有疗法耐受的人群。
        
此期的癌症患者,若接受常规治疗,仅有9.4个月的生存期。但当他们接受了Nivolumab治疗后,平均生存期提高到了12.2个月。
        
然而,一些患者对该药的效果持怀疑态度。那些能够产生高水平PD-L1的肿瘤患者有些人还能存活到19.4个月。
        
里程碑
        
呈现这些数据的第一作者来自西班牙,他认为这一研究结果为肺癌患者带来了里程碑式的福音。他表示,“Nivolumab是首个PD-L1受体,在三期临床试验中显示出提高患者生存率的显著价值。”
        
这确实是一个令人振奋的消息。来自英国伦敦大学癌症研究院的马汀医生表示,“该药将在如何治疗肿瘤领域成为范式转化。”
        
他还表示,当患者接受化疗失败后,当前的生存率是惨不忍睹的。
        
但通过对免疫回应的观察来评估,对疾病控制确实起到了较好的推迟作用,这对癌症患者来讲本身就是一个好消息,有望出现戏剧性的转变。
        
虽然,就目前来看,该药价格高昂且普及率较低,但其里程碑式的研究成果并未收太大影响,但我们还应努力扩大肺癌患者收益面作出努力。

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    2016-01-02 xzw113
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    2015-06-21 2863454482

    确实里程碑的进展

    0

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    2015-06-11 1dd80699m25(暂无匿称)

    恩恩

    0

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    2015-06-02 markchao

    没讲清楚

    0

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    2015-06-01 Dr.LV

    期待

    0

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