The impact of YTHDF2-mediated NCOA4 methylation on myocardial ferroptosis

Xiaoqi Shao1,2,3,4,5, Mengxian Sun1,2,3,4, Ruonan Wang1,2,3,4

  • 1Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, 510006, China.

Insights

YTHDF2 protein protects against myocardial infarction by inhibiting ferroptosis. It achieves this by regulating NCOA4 expression through m6A methylation, offering a potential therapeutic target for heart disease.

Area of Science:

  • Molecular Biology
  • Cardiovascular Research
  • Epigenetics

Background:

  • N6-Methyladenosine (m6A) RNA modification plays a role in various biological processes, including cardiovascular disease.
  • The specific mechanisms linking m6A to myocardial infarction (MI) and cardiomyocyte ferroptosis are not fully understood.
  • YTH domain family 2 (YTHDF2) is an m6A reader protein involved in RNA degradation.

Purpose of the Study:

  • To investigate the role of YTHDF2 in myocardial infarction and ferroptosis.
  • To elucidate the molecular mechanisms by which YTHDF2 influences cardiomyocyte ferroptosis.
  • To identify potential therapeutic targets for myocardial infarction.

Main Methods:

  • In vitro experiments involving YTHDF2 knockdown and overexpression.
  • Analysis of ferroptosis markers in cardiomyocytes.
  • Investigation of the interaction between YTHDF2, m6A, and NCOA4 expression.
  • Assessment of METTL3's role in NCOA4 mRNA regulation.

Main Results:

  • YTHDF2 knockdown exacerbated ferroptosis, while YTHDF2 overexpression conferred protection.
  • YTHDF2 suppresses nuclear receptor coactivator 4 (NCOA4) expression via m6A methylation.
  • YTHDF2's protective effect against ferroptosis is dependent on NCOA4 regulation.
  • METTL3 facilitates m6A-mediated degradation of NCOA4 mRNA.

Conclusions:

  • YTHDF2 plays a critical role in regulating myocardial infarction and cardiomyocyte ferroptosis.
  • YTHDF2-mediated m6A methylation of NCOA4 is a key mechanism in this regulation.
  • YTHDF2 represents a potential therapeutic target for myocardial infarction treatment.

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