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Reverse Yeast Two-hybrid System to Identify Mammalian Nuclear Receptor Residues that Interact with Ligands and/or Antagonists
Published on: November 15, 2013
Modulation of NRF2 signaling pathway by nuclear receptors: implications for cancer
Akhileshwar Namani1, Yulong Li1, Xiu Jun Wang2
1Department of Biochemistry and Genetics, Zhejiang University School of Medicine, Hangzhou 310058, PR China.
Abstract:
Nuclear factor-erythroid 2 p45-related factor 2 (NRF2, also known as Nfe2l2) plays a critical role in regulating cellular defense against electrophilic and oxidative stress by activating the expression of an array of antioxidant response element-dependent genes. On one hand, NRF2 activators have been used in clinical trials for cancer prevention and the treatment of diseases associated with oxidative stress; on the other hand, constitutive activation of NRF2 in many types of tumors contributes to the survival and growth of cancer cells, as well as resistance to anticancer therapy. In this review, we provide an overview of the NRF2 signaling pathway and discuss its role in carcinogenesis. We also introduce the inhibition of NRF2 by nuclear receptors. Further, we address the biological significance of regulation of the NRF2 signaling pathway by nuclear receptors in health and disease. Finally, we discuss the possible impact of NRF2 inhibition by nuclear receptors on cancer therapy.
Insights
Nuclear factor-erythroid 2 p45-related factor 2 (NRF2) regulates cellular defense against stress. Its dual role in disease and cancer highlights the therapeutic potential of nuclear receptor-mediated NRF2 inhibition.
Area of Science:
- Molecular Biology
- Cellular Biology
- Oncology
Background:
- Nuclear factor-erythroid 2 p45-related factor 2 (NRF2) is a transcription factor crucial for cellular defense against oxidative and electrophilic stress.
- NRF2 activation is explored for treating oxidative stress-related diseases and cancer prevention, but its constitutive activation in tumors promotes cancer cell survival and therapy resistance.
Purpose of the Study:
- This review provides an overview of the NRF2 signaling pathway and its involvement in carcinogenesis.
- It introduces the concept of NRF2 inhibition by nuclear receptors and discusses its biological significance in health and disease.
- The review further explores the potential impact of nuclear receptor-mediated NRF2 inhibition on cancer therapy.
Main Methods:
- Literature review of NRF2 signaling pathway.
- Analysis of NRF2's role in carcinogenesis.
- Examination of nuclear receptor-mediated inhibition of NRF2.
- Discussion of biological significance and therapeutic implications.
Main Results:
- NRF2 is a key regulator of antioxidant response genes.
- Constitutive NRF2 activation contributes to cancer progression and treatment resistance.
- Nuclear receptors can inhibit NRF2 activity.
- Regulation of NRF2 by nuclear receptors has implications for both health and disease.
Conclusions:
- NRF2 plays a complex role in cancer, acting as both a protective factor and a driver of tumor growth.
- Nuclear receptor-mediated inhibition of NRF2 presents a promising therapeutic strategy for cancer treatment.
- Further research into this regulatory mechanism could lead to novel anticancer therapies.
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