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相关概念视频

Experimental RNAi02:15

Experimental RNAi

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RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
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Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
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模体IgA特别禁用细胞内突变的编码驱动器.

Stuart Prince1, Maija Hollmén1

  • 1MediCity Research Laboratory and InFLAMES Flagship, University of Turku, Turku, Finland.

Immunity
|November 15, 2023
PubMed
概括

抗体疗法现在可以准细胞内癌症蛋白. 研究人员表明,二度IgA抗体可以在上皮癌细胞内中和去除突变的驱动蛋白,从而挑战以前的免疫疗法信念.

科学领域:

  • 免疫治疗是一种免疫疗法.
  • 癌症生物学 癌症生物学
  • 分子医学是分子医学.

背景情况:

  • 普遍存在的免疫疗法教条认为,抗体疗法仅限于细胞外抗原.
  • 向细胞内coproteins 仍然是癌症治疗的一个重大挑战.

研究的目的:

  • 研究转细胞化二元IgA抗体的潜力,以准细胞内驱动蛋白.
  • 为了证明抗体介导的细胞内抗原去除在上皮癌中的疗效.

主要方法:

  • 使用了依赖于pIgR的,转细胞化的二度IgA抗体.
  • 对表皮癌模型进行了抗体治疗.
  • 评估了细胞内突变的鱼驱动蛋白的向,中和和去除.

主要成果:

  • 证明成功准和中和细胞内突变的驱蛋白.
  • 展示了这些蛋白质在上皮癌细胞内部的有效去除.
  • 提供了反对将抗体治疗局限于细胞外点的证据.

结论:

  • 依赖pIgR的二度IgA抗体为细胞内癌症免疫治疗提供了一种新的策略.
  • 这种方法克服了针对细胞外抗原的传统障碍,扩大了治疗可能性.

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  • 这些发现为新治疗由细胞内突变驱动的上皮癌铺平了道路.