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Regulatory potential for concerted modulation of Nrf2- and Nfkb1-mediated gene expression in inflammation and

S Nair1, S T Doh, J Y Chan

  • 1Department of Pharmaceutics, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.

British Journal of Cancer
|December 4, 2008
PubMed

Insights

This study explores the interaction between nuclear factor E2-related factor 2 (Nrf2) and nuclear factor-kappaB1 (Nfkb1) in cancer and inflammation. Findings suggest a crosstalk mechanism modulated by the MAPK cascade, impacting cancer development.

Area of Science:

  • Molecular Biology
  • Genomics
  • Cancer Research

Background:

  • Nuclear factor E2-related factor 2 (Nrf2) and nuclear factor-kappaB1 (Nfkb1) are key transcription factors implicated in inflammation and cancer.
  • The potential for regulatory crosstalk between Nrf2 and Nfkb1 in these processes remains largely unexplored.

Purpose of the Study:

  • To investigate the conserved regulatory mechanisms and potential crosstalk between Nrf2 and Nfkb1.
  • To delineate transcription factor-binding site signatures and construct a regulatory network.

Main Methods:

  • Bioinformatic analyses of promoter regions of human and murine Nrf2 and Nfkb1.
  • Multiple sequence alignment of Nrf2 and Nfkb1 genes across five mammalian species.
  • Construction of a canonical regulatory network involving the mitogen-activated protein kinase (MAPK) family.

Main Results:

  • Identified conserved transcription factor-binding site signatures.
  • Developed a putative model for the concerted modulation of Nrf2 and Nfkb1 via the MAPK cascade.
  • Demonstrated potential crosstalk between Nrf2 and Nfkb1 influencing inflammation-associated carcinogenesis.

Conclusions:

  • The findings reveal a potential crosstalk between Nrf2 and Nfkb1, mediated by the MAPK cascade.
  • Understanding these relationships enhances knowledge of transcriptional regulation in inflammation and cancer.
  • This research provides insights into transcription factor networks relevant to cancer etiopathogenesis.

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