Inhibition of Colorectal Cancer Cell Progression by Picroside II Through Modulation of the Notch1 Signaling Pathway

Rui Wang1,2, Wei Zhang3, Fang Wang3

  • 1Department of Radiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.

Insights

Picroside II effectively inhibits colorectal cancer (CRC) cell progression by suppressing proliferation, migration, and invasion. This compound acts by downregulating the Notch1 signaling pathway, offering a potential therapeutic strategy for CRC.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Colorectal cancer (CRC) remains a significant global health challenge.
  • Identifying novel therapeutic agents targeting cancer cell progression is crucial.
  • The Notch1 signaling pathway is implicated in various cancers, including CRC.

Purpose of the Study:

  • To investigate the anti-cancer effects of Picroside II on colorectal cancer (CRC) cells.
  • To determine the impact of Picroside II on CRC cell proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT).
  • To explore the role of the Notch1 signaling pathway in mediating the effects of Picroside II.

Main Methods:

  • Human CRC cell lines (SW480, SW620) were treated with varying concentrations of Picroside II.
  • Cell proliferation was assessed using CCK-8, colony formation, and EdU assays.
  • Migration, invasion, EMT markers, and Notch1 pathway proteins were analyzed via wound healing, Transwell, and Western blotting assays.

Main Results:

  • Picroside II significantly inhibited CRC cell proliferation, colony formation, and DNA synthesis.
  • Treatment with Picroside II reduced CRC cell migration and invasion, altering EMT markers (upregulating E-cadherin, downregulating N-cadherin, Vimentin, ZEB2).
  • Picroside II decreased the expression of Notch1, Cleaved Notch1, RBP, and HES1 proteins in a dose-dependent manner.

Conclusions:

  • Picroside II exhibits potent anti-cancer properties against colorectal cancer cells in vitro.
  • The mechanism involves the inhibition of the Notch1 signaling pathway.
  • Picroside II represents a promising candidate for further investigation as a CRC therapeutic agent.

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