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Published on: September 17, 2021
Oxidative Stress and Nrf2 Signaling Role in Oral Squamous Cell Carcinoma: A Double-Edged Sword
Ashraf Ullah Khan1, Adnan Khan2, Bushra Shal2
1Department of Pharmacy, City University of Science and Information Technology, Peshawar, Pakistan.
Background:
Oxidative stress has a significant role in the origination and progression of oral squamous cell carcinoma (OSCC) by interrupting cellular redox homeostasis and gene regulation. The nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway is a major regulator of antioxidant defense, activating cytoprotective genes under stress conditions.
Aim:
The study highlight the dual role of the Kelch-like ECH-associated protein-1 (Keap1)/Nrf2 signaling pathway in the development, progression, and therapeutic resistance of OSCC.
Methodology:
Literature was conducted to evaluate the role of oxidative stress and Keap1/Nrf2 signaling in OSCC.
Results:
Nrf2 protects normal cells from oxidative damage, its persistent activation in cancer cells promotes tumor progression, metabolic reprogramming, and resistance to chemotherapy and radiotherapy. Dysregulation of the Keap1/Nrf2 axis enhances cancer cell survival and contributes to radioresistance in OSCC. However, Nrf2 displays a dual function as both a tumor suppressor and promoter.
Conclusion:
The Keap1/Nrf2 signaling pathway plays a key role in OSCC pathogenesis and treatment resistance. Targeting the Keap1/Nrf2 signaling pathway may provide a promising therapeutic strategy to overcome treatment resistance in OSCC.
Insights
Oxidative stress impacts oral cancer. The Keap1/Nrf2 pathway has a dual role, promoting cancer progression and treatment resistance, but also offering therapeutic potential for oral squamous cell carcinoma (OSCC).
Area of Science:
- Oncology
- Molecular Biology
- Cellular Signaling
Background:
- Oxidative stress is implicated in oral squamous cell carcinoma (OSCC) development and progression.
- The nuclear factor erythroid 2-related factor 2 (Nrf2) pathway regulates antioxidant defense.
- Nrf2 activation is crucial for cellular protection under stress.
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