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Combined Conditional Knockdown and Adapted Sphere Formation Assay to Study a Stemness-Associated Gene of Patient-derived Gastric Cancer Stem Cells
Published on: May 9, 2020
Sulforaphane inhibits gastric cancer stem cells via suppressing sonic hedgehog pathway
Miaomiao Ge1, Lu Zhang1, Lina Cao1
1a School of Public Health , Xuzhou Medical University , Xuzhou , China.
Abstract:
Sulforaphane (SFN) is the major component extracted from broccoli/broccoli sprouts. It has been shown to possess anti-cancer activity. Gastric cancer is common cancer worldwide. The objective of this work was to evaluate the inhibitory effect of SFN on gastric cancer by Sonic hedgehog (Hh) Pathway. The results found that tumorsphere formation and the expression levels of gastric cancer stem cells (CSCs) markers were significantly decreased after SFN treatment. SFN also exerted inhibitory effects by suppressing proliferation and inducing apoptosis in gastric CSCs. Intriguingly, SFN inhibited the activation of Sonic Hh, a key pathway in maintaining the stemness of gastric CSCs. Upregulation of Sonic Hh pathway diminished the inhibitory effects of SFN on gastric CSCs. Collectively, these data revealed that SFN could be a potent natural compound targeting gastric CSCs via suppression of Sonic Hh pathway, which might be an promising agent for gastric cancer intervention.
Insights
Sulforaphane (SFN), a broccoli extract, inhibits gastric cancer by targeting cancer stem cells (CSCs). It suppresses the Sonic hedgehog (Hh) pathway, crucial for CSC stemness, offering a promising avenue for gastric cancer intervention.
Area of Science:
- Oncology
- Molecular Biology
- Natural Products Chemistry
Background:
- Gastric cancer is a prevalent malignancy globally.
- Sulforaphane (SFN), derived from broccoli, exhibits known anti-cancer properties.
- Cancer stem cells (CSCs) play a critical role in gastric cancer development and resistance to therapy.
Purpose of the Study:
- To investigate the inhibitory effects of Sulforaphane (SFN) on gastric cancer.
- To elucidate the role of the Sonic hedgehog (Hh) pathway in SFN's anti-cancer activity.
- To evaluate SFN's impact on gastric cancer stem cells (CSCs).
Main Methods:
- Treatment of gastric cancer cells with Sulforaphane (SFN).
- Assessment of tumorsphere formation and CSC marker expression.
- Analysis of proliferation, apoptosis, and Sonic Hh pathway activation.
Main Results:
- SFN significantly reduced tumorsphere formation and CSC marker expression.
- SFN suppressed proliferation and induced apoptosis in gastric CSCs.
- SFN inhibited Sonic Hh pathway activation, which was crucial for maintaining CSC stemness.
Conclusions:
- Sulforaphane (SFN) demonstrates potent anti-cancer activity against gastric cancer by targeting CSCs.
- Suppression of the Sonic Hh pathway is a key mechanism underlying SFN's efficacy.
- SFN represents a promising natural compound for gastric cancer intervention.
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