Related Experiment Video
Updated: Apr 26, 2026

A Permanent Window for Investigating Cancer Metastasis to the Lung
Published on: July 1, 2021
Nitric oxide in cancer metastasis
Huiwen Cheng1, Lei Wang1, Molly Mollica1
1Department of Chemistry and Biochemistry, Ohio University, Athens, OH 45701, USA; Edison Biotechnology Institute, Konneker Research Center, Ohio University, Athens, OH 45701, USA.
Abstract:
Cancer metastasis is the spread and growth of tumor cells from the original neoplasm to further organs. This review analyzes the role of nitric oxide (NO), a signaling molecule, in the regulation of cancer formation, progression, and metastasis. The action of NO on cancer relies on multiple factors including cell type, metastasis stage, and organs involved. Various chemotherapy drugs cause cells to release NO, which in turn induces cytotoxic death of breast, liver, and skin tumors. However, NO has also been clinically connected to a poor cancer prognosis because of its role in angiogenesis and intravasation. This supports the claim that NO can be characterized as both pro-metastatic and anti-metastatic, depending on specific factors. The inhibition of cell proliferation and anti-apoptosis pathways by NO donors has been proposed as a novel therapy to various cancers. Studies suggest that NO-releasing non-steroidal anti-inflammatory drugs act on cancer cells in several ways that may make them ideal for cancer therapy. This review summarizes the biological significance of NO in each step of cancer metastasis, its controversial effects for cancer progression, and its therapeutic potential.
Insights
Nitric oxide (NO) plays a dual role in cancer metastasis, acting as both a promoter and inhibitor. Understanding its complex actions is key to developing novel cancer therapies.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Cancer metastasis involves tumor cell spread from the primary site to distant organs.
- Nitric oxide (NO) is a signaling molecule with complex roles in biological processes.
- The dual role of NO in cancer progression and metastasis requires further investigation.
Purpose of the Study:
- To review the multifaceted role of nitric oxide (NO) in cancer metastasis.
- To analyze the mechanisms by which NO influences cancer formation, progression, and spread.
- To explore the therapeutic potential of NO modulation in cancer treatment.
Main Methods:
- Literature review of studies on nitric oxide and cancer metastasis.
- Analysis of NO's effects on cancer cell proliferation, angiogenesis, and apoptosis.
- Examination of NO's involvement in chemotherapy and novel therapeutic strategies.
Main Results:
- NO exhibits both pro-metastatic and anti-metastatic properties, contingent on factors like cell type and disease stage.
- Certain chemotherapies induce NO release, leading to tumor cell death in breast, liver, and skin cancers.
- NO's role in angiogenesis and intravasation is linked to poorer cancer prognosis.
Conclusions:
- Nitric oxide (NO) has a complex, context-dependent impact on cancer metastasis.
- NO donors show promise for cancer therapy by inhibiting proliferation and anti-apoptosis pathways.
- NO-releasing anti-inflammatory drugs represent a potential therapeutic avenue for various cancers.
Related Concept Videos
Nitric Oxide Signaling Pathway
Metastasis
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Non-Canonical Wnt Signaling Pathways
Mitogens and the Cell Cycle
Selectins

