Related Experiment Video
Updated: Feb 14, 2026

Analytical Techniques for Assaying Nitric Oxide Bioactivity
Published on: June 18, 2012
Therapeutic Potential of Nitric Oxide Donors in Cancer: Focus on Angiogenesis
1Lab of Pharmacology of Angiogenesis and Microcirculation, Department of Life Sciences, University of Siena Via A. Moro 2, 53100 Siena, Italy.
Abstract:
A new challenge to overcoming tumor resistance to conventional treatment is represented by the development of novel nitric oxide (NO) donors. It is now clear that while low doses of NO have proneoplastic properties, high doses exert antitumor/antiangiogenic activities through multiple mechanisms. This review focuses on the role of exogenous NO in cancer therapy and reports the state of the art regarding different NO-donating agents in cancer treatment, particularly in relation to angiogenesis inhibition.
Insights
Novel nitric oxide (NO) donors offer a new strategy against tumor resistance. High doses of NO show significant antitumor and antiangiogenic effects, crucial for cancer therapy development.
Area of Science:
- Oncology
- Pharmacology
- Biomedical Engineering
Background:
- Tumor resistance to conventional treatments remains a significant clinical challenge.
- Nitric oxide (NO) exhibits dual roles in cancer, with low doses promoting tumor growth and high doses inhibiting it.
- Exogenous NO administration is being explored as a therapeutic strategy.
Purpose of the Study:
- To review the role of exogenous nitric oxide (NO) in cancer therapy.
- To summarize the current state of NO-donating agents for cancer treatment.
- To highlight the antiangiogenic potential of NO in preclinical and clinical settings.
Main Methods:
- Literature review of studies on nitric oxide donors in cancer therapy.
- Analysis of preclinical and clinical data on NO-based cancer treatments.
- Focus on mechanisms of NO-induced antiangiogenesis.
Main Results:
- High-dose exogenous NO demonstrates potent antitumor and antiangiogenic activities.
- Various NO-donating agents are under investigation for their therapeutic efficacy.
- NO influences multiple pathways involved in tumor growth and vascularization.
Conclusions:
- Novel nitric oxide donors represent a promising approach to overcome tumor resistance.
- Targeted delivery and high-dose administration of NO are key for therapeutic success.
- Further research into NO-based therapies, particularly for angiogenesis inhibition, is warranted.
More Related Videos
Related Concept Videos
Nitric Oxide Signaling Pathway
Techniques of Therapeutic Communication II: Focusing, Paraphrasing, and Summarizing
This therapeutic technique can also be used when a patient brings up pertinent information during a health-related conversation. The...
Oxidation Numbers
Standard Electrode Potentials
Mechanism of Angiogenesis
Pyruvate Oxidation
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...

