RNA N6-methyladenosine demethylase FTO promotes breast tumor progression through inhibiting BNIP3

Yi Niu1, Ziyou Lin1, Arabella Wan2

  • 1School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.

Molecular Cancer
|March 30, 2019
PubMed
Abstract

Insights

The study reveals that the FTO enzyme, a key regulator of N6-methyladenosine (m6A) modification, is elevated in breast cancer and promotes tumor growth. Targeting FTO may offer a new therapeutic strategy for breast cancer patients.

Area of Science:

  • Epigenetics
  • Molecular Biology
  • Oncology

Background:

  • N6-methyladenosine (m6A) is a prevalent mRNA modification regulating gene expression.
  • The role of m6A modification in breast cancer pathogenesis remains incompletely understood.

Purpose of the Study:

  • To investigate the role of m6A modification, specifically the FTO-BNIP3 axis, in breast cancer.
  • To identify potential therapeutic targets for breast cancer based on m6A regulation.

Main Methods:

  • m6A-RNA immunoprecipitation sequencing was employed to identify m6A targets in breast cancer.
  • In vitro and in vivo assays were conducted in breast cancer cell lines and patient tissues to elucidate the FTO-BNIP3 mechanism.

Main Results:

  • FTO, an m6A demethylase, is upregulated in breast cancer and associated with poor patient survival.
  • FTO promotes breast cancer cell proliferation, colony formation, and metastasis.
  • FTO targets BNIP3, a tumor suppressor gene, leading to its degradation and promoting tumor growth.

Conclusions:

  • FTO plays a significant role in breast cancer progression through m6A modification of BNIP3.
  • FTO represents a potential novel therapeutic target for breast cancer treatment.

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