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JoVE Journal
Bioengineering
交货蛋白质,多肽或细胞不可渗透的小分子进入活细胞被孵化与核内体溶解试剂dfTAT
交货蛋白质,多肽或细胞不可渗透的小分子进入活细胞被孵化与核内体溶解试剂dfTAT
JoVE Journal
Bioengineering
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JoVE Journal Bioengineering
Delivery of Proteins, Peptides or Cell-impermeable Small Molecules into Live Cells by Incubation with the Endosomolytic Reagent dfTAT

交货蛋白质,多肽或细胞不可渗透的小分子进入活细胞被孵化与核内体溶解试剂dfTAT

Full Text
10,747 Views
10:30 min
September 2, 2015

DOI: 10.3791/53175-v

Kristina Najjar1, Alfredo Erazo-Oliveras1, Jean-Philippe Pellois1

1Biochemistry and Biophysics,Texas A&M University

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Please note that some of the translations on this page are AI generated. Click here for the English version.

我们描述了如何通过简单的共孵育方案与导致内吞细胞器渗漏的试剂将蛋白质和细胞不渗透的小分子递送到培养的哺乳动物细胞中。

以下实验的总体目标是使用二聚体、荧光 tat 或 df tat 将大分子递送到活细胞中,这种试剂可以非常有效地穿透细胞而不会损坏细胞。这是通过首先生成和净化 delivery agent 来实现的。Dfta 作为第二步。

在感兴趣的大分子货物存在下,将 Dfta 与细胞在 37 摄氏度下孵育 1 小时,df tat 诱导内吞囊泡内货物的摄取。囊泡成熟为早期内体,最终达到晚期内体阶段,DF tat 能够将货物释放到细胞的胞质空间中。接下来,通过荧光显微镜对细胞进行成像,以评估 detta 和目标货物的递送效率。

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