Epigenetic targeting of autophagy for cancer: DNA and RNA methylation

Luobin Lin1, Yuntao Zhao1, Qinzhou Zheng1

  • 1Guangdong Province Key Laboratory of Biotechnology Drug Candidates, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China.

Frontiers in Oncology
|December 27, 2023
PubMed

Insights

Epigenetic modifications, including DNA N6-methyldeoxyadenosine (6mA) and RNA N6-methyladenosine (m6A), significantly regulate autophagy. Understanding these methylation marks offers novel therapeutic strategies for cancer by modulating autophagy.

Area of Science:

  • Cellular Biology
  • Epigenetics
  • Molecular Oncology

Background:

  • Autophagy is a vital cellular process for degradation and recycling, with complex roles in cancer, acting as both a tumor suppressor and promoter.
  • Epigenetic modifications, specifically DNA 6mA and RNA m6A, are emerging as key regulators of cellular processes, including autophagy.
  • The interplay between these methylation marks and autophagy is critical for understanding cancer development and progression.

Purpose of the Study:

  • To review the current understanding of DNA 6mA and RNA m6A methylation in the context of autophagy regulation.
  • To explore the influence of these epigenetic modifications on autophagy pathways in cancer.
  • To highlight the potential of targeting 6mA, m6A, and autophagy for novel cancer therapies.

Main Methods:

  • Literature review of studies investigating DNA 6mA, RNA m6A, and autophagy in cancer.
  • Analysis of the molecular mechanisms linking epigenetic modifications to autophagic activity.
  • Synthesis of current research on the therapeutic implications of targeting these pathways.

Main Results:

  • DNA 6mA and RNA m6A modifications are integral to the intricate network regulating autophagy.
  • These epigenetic marks influence the expression and function of genes involved in autophagic pathways, impacting cancer biology.
  • Dysregulation of 6mA and m6A is associated with altered autophagic flux in various cancers.

Conclusions:

  • DNA 6mA and RNA m6A represent crucial epigenetic layers controlling autophagy.
  • Targeting these methylation modifications offers promising therapeutic avenues for cancer intervention by modulating autophagy.
  • Further research into the 6mA-m6A-autophagy axis is warranted for developing innovative cancer treatments.

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