ACROBiosystems | 抗體偶聯藥物 (ADCs) 細胞內吞檢測試劑

ACROBiosystems | 抗體偶聯藥物 (ADCs) 細胞內吞檢測試劑

2025.05.13

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抗體偶聯藥物(ADCs)由單克隆抗體與高效細胞毒性載荷通過連接子共價連接,通過抗體實現了對癌細胞表面抗原的特異性識別與結合,從而將毒性藥物精准遞送至腫瘤細胞,極大降低了對正常組織的毒性。這一過程的依賴於ADCs的核心作用機制——內吞作用。通過量化內化效率,科研人員能精准預測ADCs在體內的行為模式,為臨床試驗提供關鍵資料支援。

Classic mechanism of action of ADC drugs

 

為滿足ADCs內吞檢測的需求,ACROBiosystems開發了一種基於pH敏感染料的抗體內吞檢測試劑(Cat.No. IGG-PZF2001),其利用 pH 敏感的螢光染料標記F(ab’)2 片段,此螢光標記試劑特異性結合待測抗體的 Fc 部分,10min即可形成穩定的抗體複合物,適用於快速評估抗體的內化過程,標記後抗體可用流式細胞術或細胞成像技術等多種方法檢測。

產品特徵

  • High Signal-to-noise Ratio: Strong fluorescence with minimal background.
  • Quick Labeling: Complete in just 10 minutes.
  • pH-Sensitive: Bright signal in acidic intracellular compartments.
  • Fab region preserved: Not affect antibody binding.

檢測原理

驗證資料

抗體內塗檢測FACS

Anti-CD20 Abs and Human IgG1 isotype control were labeled with Antibody Internalization Detection Reagent (Cat.No.IGG-PZF2001). Raji cells were treated with Anti-CD20 Abs-Internalization Detection Reagent conjugate and Isotype control-Internalization Detection Reagent conjugate separately for 2 hours, then analysis by Flow cytometric. APC signal was used to evaluate the activity (Routine tested).

Anti-Her2 Abs and Human IgG1 isotype control were labeled with Antibody Internalization Detection Reagent (Cat.No.IGG-PZF2001). SK-BR-3 cells were treated with Anti-Her2 Abs-Internalization Detection Reagent conjugate and Isotype control-Internalization Detection Reagent conjugate separately for 2 hours, then analysis by Flow cytometric. APC signal was used to evaluate the activity (Routine tested).

 

抗體內吞檢測-熒光成像

S A. Antibody Internalization Detection Reagent (Cat.No.IGG-PZF2001). B. IgG1 Isotype+Internalization Detection Reagent conjugate. C. Anti-Her2 Abs+Internalization Detection Reagent conjugate. D. Anti-Her2 Abs+Internalization Detection Reagent conjugate(Z-stacking). (Green: CellLights Lysosome GFP, Blue: NucBlue Live ReadyProbes, Red: IGG-PZF2001,Cell line: SK-BR-3 Her2+)

>>>點擊產看更多ADCs研究解決方案

更多內吞檢測試劑相關技術問題,請諮詢這裡

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