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Updated: May 16, 2025

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The Soft Agar Colony Formation Assay
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阿普塔默通过Wnt/β-catenin信号通路抑制P-糖蛋白排放功能
Yujuan Li1, Yujiao Liu1, Aijia Wu1
1School of Life Science, Beijing Institute of Technology, Beijing, 100081, China.
Biochemical and biophysical research communications
|April 1, 2025
概括
一种针对P-gp (透性糖蛋白) 的新型吸收酶有效抑制了其排泄活动. 这种基于核酸的抑制剂显示出增强药物疗效和克服癌症治疗中的多药耐药性的潜力.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 透性糖蛋白 (P-gp) 流量抑制对于提高药物有效性和克服瘤中的多药性耐药性至关重要.
- 在P-gp流量上,P-gp胺酶 (APTP-gp) 的抑制作用仍然在很大程度上未被描述.
研究的目的:
- 为了研究APTP-gp作为P-gp抑制剂的潜力.
- 评估APTP-gp对P-gp活动,表达和相关信号通路的影响.
主要方法:
- 在Caco-2和hCMEC/D3细胞系中评估了Rho123的吸收和双向传输.
- 通过细胞层测量明显的透系数 (Papp).
- 在大鼠组织和细胞系中量化P-gp mRNA和蛋白质表达.
- 分析了Wnt/β-catenin信号通路组件并进行了分子对接.
主要成果:
- APTP-gp显著抑制了P-gp活性,增加了Rho123的吸收和明显的透性 (AP→BL).
- 作为对APTP-gp的反应,P-gp表达 (mRNA和蛋白质) 显著降低.
- APTP-gp降低了Wnt3,pho-Dvl2和β-catenin的调节,并改变了GSK-3β酸化,与分子对接支持与Wnt/β-catenin通路蛋白的相互作用.
结论:
- APTP-gp作为一种基于核酸的新型P-gp抑制剂.
- 这种阿巴胺体现了临床应用的潜力,可以提高药物的疗效,克服多药物耐药性.
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