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The Establishment of a Lung Colonization Assay for Circulating Tumor Cell Visualization in Lung Tissues
Published on: June 16, 2018
Multifaceted roles of cyclooxygenase-2 in lung cancer
Karen Riedl1, Kostyantyn Krysan, Mehis Põld
1UCLA Lung Cancer Research Program, Department of Medicine, 37-131 CHS, David Geffen School of Medicine at UCLA, 10833 LeConte Avenue, Los Angeles, CA 90095-1690, USA.
Abstract:
Lung cancer is the leading cause of cancer death in the United States. Although the low 5-year survival rate (under 15%) has changed minimally in the last 25 years, new agents and combinations of agents that target tumor proliferation, invasion, and survival may lead to improvement in patient outcomes. There is evidence that cyclooxygenase-2 (COX-2) is overexpressed in lung cancer and promotes tumor proliferation, invasion, angiogenesis, and resistance to apoptosis. COX-2 inhibitors have been found to inhibit tumor growth in animal models and have demonstrated responses when combined with conventional therapy in phase II clinical trials. Further understanding of the mechanisms involved in COX-2-mediated tumorigenesis and its interaction with other molecules in lung cancer may lead to improved therapeutic strategies for this disease. In addition, delineation of how COX-2-dependent genes modulate the malignant phenotype will provide novel insights in lung cancer pathogenesis.
Insights
Lung cancer, a leading cause of cancer death, shows minimal survival rate improvement. Targeting cyclooxygenase-2 (COX-2) may offer new therapeutic strategies by inhibiting tumor growth and enhancing conventional treatments.
Area of Science:
- Oncology
- Molecular Biology
Background:
- Lung cancer remains the leading cause of cancer mortality in the US with a stagnant 5-year survival rate.
- Cyclooxygenase-2 (COX-2) is frequently overexpressed in lung cancer, contributing to tumor progression, invasion, angiogenesis, and apoptosis resistance.
Purpose of the Study:
- To explore the role of COX-2 in lung cancer pathogenesis.
- To investigate the potential of COX-2 inhibitors as therapeutic agents for lung cancer.
Main Methods:
- Review of existing evidence on COX-2 expression and function in lung cancer.
- Analysis of preclinical data from animal models.
- Evaluation of clinical trial results for COX-2 inhibitors in combination therapy.
Main Results:
- COX-2 inhibitors demonstrated tumor growth inhibition in animal models.
- Combined therapy with COX-2 inhibitors showed promising responses in Phase II clinical trials.
Conclusions:
- Understanding COX-2-mediated tumorigenesis and its molecular interactions is crucial for developing novel lung cancer therapies.
- Targeting COX-2 presents a potential strategy to improve patient outcomes in lung cancer treatment.
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