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Inducible nitric oxide synthase-vascular endothelial growth factor axis: a potential target to inhibit tumor
1Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Health Sciences Center, Denver, CO 80262, USA.
Abstract:
Human solid tumors remain latent in the absence of angiogenesis since it is a critical process for their further growth and progression. Experimental evidence suggests that targeting tumor angiogenesis may be a novel strategy to check tumor growth and metastases. Recent studies suggest that several bioactive food components can suppress tumor growth by inhibiting angiogenesis. This suppression occurs because of a direct effect on the tumor, as well as a direct effect on vascular endothelial cells. These food components can target epigenetic processes and thereby suppress the pro-angiogenic tumor microenvironment. One likely epigenetic target is inducible nitric oxide synthase (iNOS). iNOS is known to regulate vascular endothelial growth factor (VEGF) expression, and thereby tumor angiogenesis. The ability of food components to influence the inducible form of cyclooxygenase, COX-2 may also contribute to their impact on tumor growth and angiogenesis. This review focuses on recent developments related to the angiogenic role of the iNOS-VEGF axis and how dietary components may target this axis. Overall, studies suggest that the anti-angiogenic potential of physiologically concentrations of relevant food components could be used as a practical approach for cancer prevention and intervention.
Insights
Dietary components can inhibit tumor growth by targeting angiogenesis, a process crucial for tumor progression. These food compounds influence epigenetic pathways, impacting the iNOS-VEGF axis for cancer prevention and intervention.
Area of Science:
- Oncology
- Molecular Biology
- Nutritional Science
Background:
- Tumor growth and metastasis are critically dependent on angiogenesis.
- Targeting tumor angiogenesis is a promising strategy for cancer treatment and prevention.
- Bioactive food components show potential in suppressing tumor angiogenesis.
Purpose of the Study:
- To review the role of the inducible nitric oxide synthase (iNOS)-vascular endothelial growth factor (VEGF) axis in tumor angiogenesis.
- To explore how dietary components can target this axis to inhibit tumor growth.
- To highlight the potential of food components in cancer prevention and intervention.
Main Methods:
- Review of recent experimental and clinical studies.
- Analysis of the molecular mechanisms underlying the anti-angiogenic effects of food components.
- Focus on epigenetic targets such as iNOS and COX-2.
Main Results:
- Bioactive food components can suppress tumor angiogenesis through direct effects on tumor cells and vascular endothelial cells.
- These components target epigenetic processes, including the iNOS-VEGF axis.
- Inhibition of iNOS and potentially COX-2 by food components contributes to anti-angiogenic effects.
Conclusions:
- The iNOS-VEGF axis is a key target for anti-angiogenic therapies.
- Dietary components offer a practical approach to modulate this axis for cancer prevention.
- Further research into the anti-angiogenic potential of food components could lead to novel cancer interventions.
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