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Efficient cellular uptake of click nucleic acid modified proteins.
Chemical Communications ( IF 4.3 ) Pub Date : 2020-04-01 , DOI: 10.1039/c9cc09401f
Albert Harguindey 1 , Heidi R Culver , Jasmine Sinha , Christopher N Bowman , Jennifer N Cha
Affiliation  

Efficient intracellular delivery of biomacromolecules such as proteins continues to remain a challenge despite its potential for medicine. In this work, we show that mScarlet, a non cytotoxic red fluorescent protein (RFP) conjugated to Click Nucleic Acid (CNA), a synthetic analog of DNA, undergo cell uptake significantly more than either native proteins or proteins conjugated with similar amounts of DNA in MDA-MB-468 cells. We further demonstrate that the process of cell uptake is metabolically driven and that scavenger receptors and caveolae mediated endocytosis play a significant role. Co-localization studies using anti-scavenger receptor antibodies suggest that scavenger receptors are implicated in the mechanism of uptake of CNA modified proteins.

中文翻译:


点击核酸修饰蛋白的有效细胞摄取。



尽管蛋白质等生物大分子具有医学潜力,但其在细胞内的有效传递仍然是一个挑战。在这项工作中,我们证明 mScarlet(一种与点击核酸 (CNA)(DNA 的合成类似物)缀合的非细胞毒性红色荧光蛋白 (RFP))比天然蛋白质或与相似数量的 DNA 缀合的蛋白质更容易被细胞摄取。在 MDA-MB-468 细胞中。我们进一步证明细胞摄取过程是代谢驱动的,并且清道夫受体和小凹介导的内吞作用发挥着重要作用。使用抗清道夫受体抗体的共定位研究表明清道夫受体参与 CNA 修饰蛋白的摄取机制。
更新日期:2020-03-25
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