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Published on: October 27, 2014
Naturally occurring compounds acting as potent anti-metastatic agents and their suppressing effects on Hedgehog and
L Farahmand1, B Darvishi2, K Majidzadeh-A1,3
1Cancer Genetics Department, Breast Cancer Research Center, ACECR, Tehran, Iran.
Abstract:
Despite numerous remarkable achievements in the field of anti-cancer therapy, tumour relapse and metastasis still remain major obstacles in improvement of overall cancer survival, which may be at least partially owing to epithelial-mesenchymal transition (EMT). Multiple signalling pathways have been identified in EMT; however, it appears that the role of the Hedgehog and WNT/β-catenin pathways are more prominent than others. These are well-known preserved intracellular regulatory pathways of different cellular functions including proliferation, survival, adhesion and differentiation. Over the last few decades, several naturally occurring compounds have been identified to significantly obstruct several intermediates in Hedgehog and WNT/β-catenin signalling, eventually resulting in suppression of signal transduction. This article highlights the current state of knowledge associated with Hedgehog and WNT/β-catenin, their involvement in metastasis through EMT processes and introduction of the most potent naturally occurring agents with capability of suppressing them, eventually overcoming tumour relapse, invasion and metastasis.
Insights
Tumor relapse and metastasis, driven by epithelial-mesenchymal transition (EMT), can be targeted. Natural compounds show promise in suppressing key Hedgehog and WNT/β-catenin pathways to overcome cancer spread.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Tumor relapse and metastasis remain significant challenges in cancer therapy, impacting patient survival.
- Epithelial-mesenchymal transition (EMT) is a key process implicated in cancer cell invasion and metastasis.
- The Hedgehog and WNT/β-catenin signaling pathways play prominent roles in regulating EMT and cancer progression.
Purpose of the Study:
- To review the involvement of Hedgehog and WNT/β-catenin pathways in EMT-driven metastasis.
- To identify potent naturally occurring compounds that can suppress these critical signaling pathways.
- To explore strategies for overcoming tumor relapse and metastasis using these natural agents.
Main Methods:
- Literature review of signaling pathways involved in EMT and metastasis.
- Analysis of studies on natural compounds targeting Hedgehog and WNT/β-catenin pathways.
- Synthesis of current knowledge on the therapeutic potential of these compounds.
Main Results:
- Hedgehog and WNT/β-catenin pathways are crucial regulators of EMT, proliferation, survival, adhesion, and differentiation.
- Several natural compounds have demonstrated significant inhibitory effects on intermediates within these pathways.
- Suppression of these pathways by natural agents can lead to reduced tumor invasion and metastasis.
Conclusions:
- Targeting Hedgehog and WNT/β-catenin pathways is a viable strategy to combat cancer metastasis.
- Naturally occurring compounds offer a promising therapeutic avenue for inhibiting these pathways.
- Further research into these compounds could lead to novel treatments for preventing tumor relapse and metastasis.
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