Sci Transl Med:癌症治愈新希望,溶瘤病毒结合免疫疗法癌症治愈率可达90%

2018-01-04 佚名 medicalxpress

近些年来,免疫治疗的发展为癌症的治疗带来了一线曙光。免疫治疗指的是使身体的免疫系统攻击癌症,对诸如黑色素瘤和白血病等癌症带来了革命性的突破。然而,许多其它类型的癌症仍然具有抗性。

近些年来,免疫治疗的发展为癌症的治疗带来了一线曙光。免疫治疗指的是使身体的免疫系统攻击癌症,对诸如黑色素瘤和白血病等癌症带来了革命性的突破。然而,许多其它类型的癌症仍然具有抗性。

由渥太华医院和渥太华大学的研究人员领导的一项新的研究表明,两种免疫疗法(溶瘤病毒和检查点抑制剂)的组合可以更成功地治疗乳腺癌和其他癌症。在他们的研究中,研究人员使用小鼠模型进行了实验,研究结果发表在《科学翻译医学》中。

来自渥太华医院和渥太华大学的研究人员表示:“我们能在大多数小鼠中看到癌症的治愈,甚至在通常对免疫治疗非常有抵抗力的模型中也看到了飞跃性的进行。我们相信,同样的机制正在人类癌症中也是呀,但需要进一步的研究来测试人类的这种疗法。在目前的研究中,研究人员重点关注“三阴性”乳腺癌,这是最具攻击性和难以治疗的乳腺癌。研究人员研究了三种阴性乳腺癌的小鼠模型,发现它们都能耐受通常用于治疗其它类型癌症的检查点抑制剂。他们还发现,虽然一种名为Maraba的溶瘤病毒可以在这些癌症中复制并帮助小鼠的免疫系统识别和攻击癌症,但病毒本身对整体存活率的影响最小。

在此次实验中,研究人员发现这种组合治愈了60%到90%的小鼠,而单独的检查点抑制剂和单独的病毒疗法只能清除20%到30%的癌细胞。“我们的免疫系统在不断地试图识别和杀死癌细胞,但是癌细胞总是试图躲避它。当你用病毒感染癌细胞时,它会产生一个大的‘红旗’,这有助于免疫系统识别和攻击癌症。

原始出处:

[1] Marie-Claude Bourgeois-Daigneault, Dominic Guy Roy, Amelia Sadie Aitken, et.al. Neoadjuvant oncolytic virotherapy before surgery sensitizes triple-negative breast cancer to immune checkpoint therapy. Science Translational Medicine

[2] Adel Samson, Karen J. Scott, David Taggart, et.al. Intravenous delivery of oncolytic reovirus to brain tumor patients immunologically primes for subsequent checkpoint blockade. Science Translational Medicine

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    2018-01-28 cenghis
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    2018-11-19 bsmagic9140
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    2018-03-04 珙桐
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    2018-01-04 阿杜12138

    溶瘤病毒结合免疫疗法

    0

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    2018-01-04 1e0e5a1fm42(暂无匿称)

    henhao

    0

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