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Structure:澳研究确定一个抗癌“刹车”分子三维结构

2018-12-18 佚名 中国科学报

澳大利亚研究人员近日宣布,他们确认了免疫系统中一个抗癌“刹车”分子CD96的三维结构。这将有利于研发癌症免疫疗法相关的靶向药物,更好地控制肿瘤扩散。


澳大利亚研究人员近日宣布,他们确认了免疫系统中一个抗癌“刹车”分子CD96的三维结构。这将有利于研发癌症免疫疗法相关的靶向药物,更好地控制肿瘤扩散。

主持这项研究的澳大利亚莫纳什大学生物化学与分子生物学研究员理查德·贝里介绍,人体免疫系统“刹车”的作用是防止免疫系统攻击健康组织。很多肿瘤就利用这种机制,在表面释放出特殊生物标记来欺骗人体启动“刹车”机制,从而躲过免疫系统的攻击。

他说:“我们从动物实验得到的结果显示,通过阻止CD96发挥‘刹车’作用,可能比目前其他疗法更有效地阻止肿瘤扩散……CD96阻断疗法在动物实验中表现出对治疗肺癌、前列腺癌和皮肤癌都很有效,并且副作用低。”

研究人员说,相比之前发现的另外两个抗癌“刹车”分子PD-1和CTLA-4,这次确定结构的CD96分子在动物实验中可以更好地作为控制肿瘤扩散的靶点,因此在癌症免疫疗法领域具有重要应用前景。

癌症免疫疗法是利用人体自身免疫功能来搜寻并杀死癌细胞的治疗方法。贝里说,确定该“刹车”分子的三维结构将有利于科研人员研发相关靶向药物。相关论文近日发表在美国生物期刊《结构》上。

原始出处:

Felix A. Deuss, et al.Structural Basis for CD96 Immune Receptor Recognition of Nectin-like Protein-5, CD155.Structure.Published online: December 6, 2018

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    2019-05-10 日月
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    2018-12-19 jyzxjiangqin

    澳研究确定一个抗癌分子。

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    2018-12-19 kafei

    学习了谢谢

    0

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