Inhibitors of cyclo-oxygenase 2: a new class of anticancer agents?
Giampietro Gasparini1, Raffaele Longo, Roberta Sarmiento
1Division of Medical Oncology, S Filippo Neri Hospital, Rome, Italy. gasparini.oncology@tisclinet.it
Abstract:
Experimental studies have shown that cyclo-oxygenase 2 (COX2) is involved in tumour development and progression. Selective inhibitors of COX2 (coxibs) block tumour growth through many mechanisms, especially by antiangiogenic and proapoptotic effects. In experimental models, coxibs potentiate the activity of cytotoxic agents, hormones, and radiotherapy. Large clinical studies have shown chemopreventive activity of coxibs in colorectal cancer. The findings of preclinical studies coupled with the overexpression of COX2 observed in advanced human tumours are the basis for new therapeutic anticancer strategies based on combinations of coxibs with other anticancer treatment modalities. Early clinical studies have documented the feasibility, good tolerability, and promising activity of coxibs combined with chemotherapy in patients with advanced colorectal and non-small-cell lung cancers. Here, we describe the recent findings on the antitumour effects of coxibs with particular focus on the opportunities that have emerged for treatment of cancer.
Insights
Selective cyclo-oxygenase 2 (COX2) inhibitors, known as coxibs, demonstrate significant anticancer effects by inhibiting tumor growth and potentiating other treatments. Clinical studies show promising results for coxibs combined with chemotherapy in various cancers.
Area of Science:
- Oncology
- Pharmacology
Background:
- Cyclo-oxygenase 2 (COX2) plays a crucial role in tumor development and progression.
- Selective COX2 inhibitors (coxibs) exhibit antiangiogenic and proapoptotic effects, inhibiting tumor growth.
- COX2 is overexpressed in advanced human tumors, indicating its therapeutic relevance.
Purpose of the Study:
- To review recent findings on the anticancer effects of coxibs.
- To explore therapeutic opportunities for combining coxibs with other anticancer modalities.
Main Methods:
- Review of experimental studies on coxibs' antitumour mechanisms.
- Analysis of preclinical models demonstrating coxib efficacy.
- Evaluation of clinical trial data on coxib combinations.
Main Results:
- Coxibs inhibit tumor growth via antiangiogenic and proapoptotic mechanisms.
- Coxibs enhance the efficacy of chemotherapy, hormonal therapy, and radiotherapy in experimental models.
- Clinical studies show coxibs are feasible, well-tolerated, and effective when combined with chemotherapy for colorectal and non-small-cell lung cancers.
Conclusions:
- Preclinical and clinical findings support the use of coxibs in anticancer strategies.
- Combination therapy with coxibs offers promising opportunities for cancer treatment, particularly in advanced stages.
More Related Videos
06:07Continuous Fluorescence-Based Endonuclease-Coupled DNA Methylation Assay to Screen for DNA Methyltransferase Inhibitors
Published on: August 5, 2022
10:01Structure-Guided Design and Development of Novel Cyclophilin A Inhibitors and Ganoderiol-F Derivatives: An In-Silico Approach
Published on: June 23, 2026
Related Concept Videos
Inhibition of Cdk Activity
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Inhibition of CDK Activity
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Inhibitors of Bacterial DNA Synthesis
