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Modulation of Nrf2/HO-1 by Natural Compounds in Lung Cancer
Somayyeh Ghareghomi1, Faezeh Moosavi-Movahedi1, Luciano Saso2
1Institute of Biochemistry and Biophysics, University of Tehran, Tehran 1417466191, Iran.
Abstract:
Oxidative stresses (OSs) are considered a pivotal factor in creating various pathophysiological conditions. Cells have been able to move forward by modulating numerous signaling pathways to moderate the defects of these stresses during their evolution. The company of Kelch-like ECH-associated protein 1 (Keap1) as a molecular sensing element of the oxidative and electrophilic stress and nuclear factor erythroid 2 (NF-E2)-related factor 2 (Nrf2) as a master transcriptional regulator of the antioxidant response makes a master cytoprotective antioxidant pathway known as the Keap1/Nrf2 pathway. This pathway is considered a dual-edged sword with beneficial features for both normal and cancer cells by regulating the gene expression of the array of endogenous antioxidant enzymes. Heme oxygenase-1 (HO-1), a critical enzyme in toxic heme removal, is one of the clear state indicators for the duality of this pathway. Therefore, Nrf2/HO-1 axis targeting is known as a novel strategy for cancer treatment. In this review, the molecular mechanism of action of natural antioxidants on lung cancer cells has been investigated by relying on the Nrf2/HO-1 axis.
Insights
Natural antioxidants target the Nrf2/HO-1 pathway to combat lung cancer. This cytoprotective pathway offers dual benefits, making it a novel strategy for cancer treatment by regulating antioxidant enzymes.
Area of Science:
- Biochemistry
- Molecular Biology
- Oncology
Background:
- Oxidative stress (OS) contributes to various pathophysiological conditions.
- The Keap1/Nrf2 pathway is a master regulator of cellular antioxidant responses.
- This pathway exhibits duality, offering benefits to both normal and cancer cells.
Purpose of the Study:
- To investigate the molecular mechanisms of natural antioxidants in lung cancer.
- To explore the role of the Nrf2/HO-1 axis in this context.
- To evaluate Nrf2/HO-1 axis targeting as a potential cancer therapy.
Main Methods:
- Literature review focusing on the Keap1/Nrf2 pathway.
- Analysis of molecular mechanisms of natural antioxidants.
- Examination of the Nrf2/HO-1 axis in lung cancer.
Main Results:
- The Keap1/Nrf2 pathway regulates antioxidant enzymes, including heme oxygenase-1 (HO-1).
- HO-1 serves as an indicator of the pathway's dual role in cancer.
- Targeting the Nrf2/HO-1 axis is a promising strategy for lung cancer treatment.
Conclusions:
- Natural antioxidants modulate the Nrf2/HO-1 axis in lung cancer cells.
- The Nrf2/HO-1 pathway represents a significant therapeutic target for lung cancer.
- Further research into Nrf2/HO-1 targeting could lead to novel cancer treatments.
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