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OGG1 as an Epigenetic Reader Affects NFκB: What This Means for Cancer.

Spiros Vlahopoulos1, Lang Pan2, Lokman Varisli3

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8-oxoguanine glycosylase 1 (OGG1) regulates gene expression, impacting cancer development. OGG1

Keywords:
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Area of Science:

  • Molecular Biology
  • Cancer Research
  • Genetics

Background:

  • 8-oxoguanine glycosylase 1 (OGG1) is primarily known for its role in DNA base excision repair.
  • Emerging evidence highlights OGG1's function as a modulator of gene expression, particularly NFκB-driven pathways.
  • OGG1's involvement is significant in both lung cancer and acute myeloid leukemia.

Purpose of the Study:

  • To analyze and discuss the redox-modulated intricate connections involving OGG1 and NFκB in cancer.
  • To explore how OGG1 facilitates malignant cell adaptation, proliferation, and therapeutic evasion.

Main Methods:

  • Review of existing literature on OGG1's role in DNA repair and gene expression.
  • Analysis of OGG1's interaction with NFκB under oxidant stress conditions.
  • Discussion of OGG1's implications in lung cancer and acute myeloid leukemia pathogenesis.

Main Results:

  • Oxidant stress transiently halts OGG1 enzymatic activity, facilitating NFκB DNA binding.
  • This interaction promotes the expression of cytokines and chemokines, recruiting inflammatory cells.
  • OGG1-NFκB interplay provides malignant cells with pathways to alter their microenvironment.

Conclusions:

  • OGG1 is a critical regulator of gene expression with significant implications in cancer.
  • The interaction between OGG1 and NFκB contributes to malignant cell transformation and progression.
  • Targeting OGG1-NFκB pathways may offer novel therapeutic strategies for cancers like AML and lung cancer.