Dual role of Nrf2 in cancer: molecular mechanisms, cellular functions and therapeutic interventions

M Poornashree1, Hitesh Kumar1, Ramkishan Ajmeer2

  • 1Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education & Research, 570015, Mysuru, India.

Molecular Biology Reports
|December 13, 2022
PubMed
Abstract

Insights

Nuclear factor erythroid 2-related factor 2 (Nrf2) plays a dual role in cancer, promoting tumor growth and resistance. Inhibiting Nrf2 shows promise as an effective cancer therapy by targeting these pro-tumorigenic functions.

Area of Science:

  • Molecular Biology
  • Cancer Research
  • Cellular Signaling

Background:

  • Nuclear factor erythroid 2-related factor 2 (Nrf2) regulates oxidative stress, crucial for cellular function.
  • Aberrant Nrf2 activation in malignancies promotes tumor cell survival, proliferation, and resistance to therapy.
  • Nrf2 is linked to chemoresistance, radioresistance, and inflammation-driven carcinogenesis.

Purpose of the Study:

  • To review the multifaceted roles of Nrf2 in cancer development and progression.
  • To explore the mechanisms underlying Nrf2's dual function in malignancies.
  • To discuss the therapeutic potential of targeting Nrf2 in cancer treatment.

Main Methods:

  • Literature review of studies investigating Nrf2 pathways in cancer.
  • Analysis of genetic mutations and anomalies affecting Nrf2 activation in tumors.
  • Examination of Nrf2's impact on cellular processes like metabolic reprogramming and apoptosis.

Main Results:

  • Somatic mutations in Nrf2 and associated tumor suppressor genes (TP53, CDKN2A, PTEN, PIK3CA) are common in various cancers.
  • Uncontrolled Nrf2 activation confers resistance to chemotherapy, radiotherapy, and reactive oxygen species (ROS).
  • Nrf2 influences cancer stem cell self-renewal and metabolic reprogramming, aiding tumor adaptation and spread.

Conclusions:

  • Nrf2 is a significant target for novel cancer therapeutic strategies.
  • Understanding Nrf2's complex roles is key to developing effective Nrf2 inhibitors for cancer treatment.
  • Targeting Nrf2 offers a promising approach to overcome cancer cell resistance and improve treatment outcomes.

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