Related Experiment Videos
Molecular mechanisms and systemic targeting of NRF2 dysregulation in cancer
Jong-Su Kang1, Le Ba Nam1, Ok-Kyung Yoo1
1College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University, 32 Dongguk-ro, Goyang, Gyeonggi-do 10326, Republic of Korea.
Abstract:
NF-E2-related factor 2 (NRF2) is a master regulator of redox homeostasis and provides cellular protection against oxidants and electrophiles by inducing the expression of a wide array of phase II cytoprotective genes. Until now, a number of NRF2 activators have been developed for treatment of chronic diseases and some are under evaluation in the clinical studies. On the other hand, accumulating evidence indicates that NRF2 confers chemoresistance and radioresistance, and its expression is correlated with poor prognosis in cancer patients. Studies in the last decade demonstrate that diverse mechanisms such as somatic mutations, accumulation of KEAP1 binding proteins, transcriptional dysregulation, oncogene activation, and accumulation of reactive metabolites contribute to NRF2 activation in cancer. In the present review, we illustrate the molecular mechanisms governing the function of NRF2 and explain how they are hijacked in cancer. We also provide some examples of NRF2 inhibitors together with a brief explanation of their mechanisms of action.
Insights
Nuclear factor erythroid 2-related factor 2 (NRF2) regulates cellular defense but promotes cancer resistance. This review details NRF2
Area of Science:
- Molecular Biology
- Cellular Biology
- Oncology
Background:
- Nuclear factor erythroid 2-related factor 2 (NRF2) is a key regulator of cellular defense against oxidative stress.
- NRF2 activators are explored for chronic diseases, but NRF2 also promotes cancer chemoresistance and radioresistance.
- Elevated NRF2 expression correlates with poor prognosis in cancer patients.
Purpose of the Study:
- To review the molecular mechanisms of NRF2 function.
- To explain how NRF2 is dysregulated in cancer.
- To present examples of NRF2 inhibitors and their mechanisms.
Main Methods:
- Literature review of NRF2 function and dysregulation in cancer.
- Analysis of molecular mechanisms underlying NRF2 activation in cancer.
- Compilation of data on NRF2 inhibitors.
Main Results:
- NRF2 activation in cancer involves diverse mechanisms including somatic mutations and oncogene activation.
- NRF2 confers resistance to chemotherapy and radiotherapy.
- Several NRF2 inhibitors are being developed.
Conclusions:
- Understanding NRF2's dual role is crucial for cancer therapy.
- Targeting NRF2 may offer new strategies to overcome cancer resistance.
- Further research into NRF2 inhibitors is warranted.
Related Concept Videos
Electron Transport Chain: Complex I and II
ROS generation is regulated and maintained at moderate levels necessary...
Targeted Cancer Therapies
There are several types of targeted therapies against...
NF-κB-dependent Signaling Pathway
NF-κB-dependent Signaling Mechanism
The...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Abnormal Proliferation
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...