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RNA methylation and breast cancer: insights into m6A, m7G and m5C

Yuhan Dai1, Shuhan Zhao1, Huilin Chen1

  • 1Department of breast surgery, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China.

Molecular Biology Reports
|November 29, 2024
PubMed

Insights

RNA modifications, especially methylation (m6A, m7G, m5C), are key in breast cancer progression and resistance. Targeting these RNA methylation regulators offers new avenues for precision medicine and improved patient outcomes.

Area of Science:

  • Oncology
  • Molecular Biology
  • Epigenetics

Background:

  • Breast cancer exhibits molecular diversity, posing challenges in treatment due to heterogeneity and resistance.
  • RNA modifications are increasingly recognized as critical regulators in cancer biology.
  • Methylation, a key RNA modification, influences cancer progression, metastasis, and treatment resistance.

Purpose of the Study:

  • To review the roles of key RNA methylations in breast cancer.
  • To examine the functions of RNA methylation "writers," "readers," and "erasers."
  • To explore the therapeutic potential of targeting RNA methylation in breast cancer.

Main Methods:

  • Literature review focusing on RNA methylation in breast cancer.
  • Analysis of the roles of specific RNA methylation types (m6A, m7G, m5C, m1A, m3C) and their associated proteins.
  • Exploration of the interplay between RNA methylation and non-coding RNAs.

Main Results:

  • N6-methyladenosine (m6A) modifications, regulated by METTL3, METTL14, FTO, and ALKBH5, impact tumor behavior, stem cell phenotypes, chemoresistance, and immune evasion.
  • N7-methylguanosine (m7G) modifications influence mRNA stability and translation, presenting a therapeutic target.
  • Other methylations (m5C, m1A, m3C) and their interplay with non-coding RNAs are implicated in breast cancer tumorigenesis and prognosis.

Conclusions:

  • RNA methylations are crucial in breast cancer development and progression.
  • Dysregulation of RNA methylation pathways contributes to treatment resistance and immune evasion.
  • Targeting RNA methylation pathways presents a promising strategy for novel breast cancer therapies and precision medicine.
Keywords:
Breast cancerRNA methyltransferasesRNA modificationm5Cm6Am7G

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