NRF2-dependent stress defense in tumor antioxidant control and immune evasion

José Pedro Friedmann Angeli1, Svenja Meierjohann2,3

  • 1Rudolf-Virchow Center for Integrative and Translational Bioimaging, University of Würzburg, Würzburg, Germany.

Insights

Nuclear factor erythroid 2-related factor 2 (NRF2) drives drug resistance and immune evasion in cancers like lung adenocarcinoma. This review explores NRF2

Area of Science:

  • Oncology
  • Molecular Biology
  • Immunology

Background:

  • Nuclear factor erythroid 2-related factor 2 (NRF2) is a key regulator of oxidative stress response.
  • Oncogenic activation of NRF2 is linked to drug resistance and immune evasion in cancers such as lung adenocarcinoma.
  • NRF2 can be activated through various mechanisms beyond KEAP1/NRF2 pathway mutations, including radiation and tumor microenvironment factors.

Purpose of the Study:

  • To review the multifaceted roles of NRF2 in melanoma.
  • To elucidate NRF2's involvement in modulating differentiation and suppressing anti-tumor immunity in melanoma.
  • To discuss the therapeutic implications of targeting NRF2 in melanoma.

Main Methods:

  • Literature review of studies on NRF2 function in cancer.
  • Analysis of NRF2's role in oxidative stress, metabolism, differentiation, and immune response.
  • Discussion of current and potential therapeutic strategies targeting NRF2.

Main Results:

  • Activated NRF2 protects tumors from damage and adapts their metabolism.
  • NRF2 plays a role in melanoma differentiation and suppression of anti-tumor immunity.
  • NRF2 activation contributes to drug resistance and immune evasion in various cancer types.

Conclusions:

  • NRF2 has complex roles in melanoma, including immune evasion and differentiation modulation.
  • Targeting NRF2 may offer novel therapeutic strategies for melanoma.
  • Understanding NRF2's function is crucial for developing effective cancer treatments.

Related Concept Videos

NF-κB-dependent Signaling Pathway02:26

NF-κB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
9.0K
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
4.2K
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.9K
Regulation of the Unfolded Protein Response01:31

Regulation of the Unfolded Protein Response

Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
2.8K
Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
17.4K
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
8.8K