Nature Nanotechnology:DNA检测能够判断抗体的有效性

2019-01-17 佚名 细胞

使用基于DNA的精确纳米结构设计 - 瑞典卡罗林斯卡医学院的科学家能够证明密集的抗原之间最准确的距离,以便获得免疫系统中结合能力最强的抗体。该研究发表在《Nature Nanotechnology》杂志上,这一研究对抗癌疫苗和免疫疗法的发展具有重要意义。

使用基于DNA的精确纳米结构设计 - 瑞典卡罗林斯卡医学院的科学家能够证明密集的抗原之间最准确的距离,以便获得免疫系统中结合能力最强的抗体。该研究发表在《Nature Nanotechnology》杂志上,这一研究对抗癌疫苗和免疫疗法的发展具有重要意义。

抗体或免疫球蛋白可能是身体抵抗感染的最重要部分,可以非常有效地结合抗原。抗体具有Y形结构,其中每个“臂”可以结合抗原。以这种方式,每个抗体分子通常可以结合两个抗原分子。

在目前的研究中,研究人员检查了抗原的密切程度和相隔多远,而不会显着影响抗体同时结合两种分子的能力。

“我们第一次能够精确测量抗原之间的距离,从而最大程度地同时结合不同抗体的两个臂。大约16纳米的距离提供最强的结合,”该研究还表明,免疫球蛋白M(IgM)是第一种参与感染的抗体,它具有明显更大的范围,即结合两种抗原的能力,比以前认为的要好。 IgM还具有比感染后期产生的IgG抗体显着更大的范围。

“我们研究抗体的结构和功能之间的关系。当我们设计下一代疫苗和抗体来定制治疗严重疾病时,这种洞察力非常重要。我们一直在寻找可以帮助我们获得详细信息的新方法了解不同抗体如何与抗原结合”。

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    2019-07-27 shock_melon
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    2019-09-23 liye789132251
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    2019-05-18 yyj072
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    2019-01-22 wxl882001

    了解一下

    0

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