NAT10 mediated ac4C acetylation driven m6A modification via involvement of YTHDC1-LDHA/PFKM regulates glycolysis and

Zhongting Mei1, Zhihua Shen2,3, Jiaying Pu2,3

  • 1Department of Pharmacology, (The State-Province Key Laboratories of Biomedicine Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China.

Insights

The enzyme NAT10 regulates RNA N4-acetylcytidine (ac4C) modification, impacting cancer progression. Inhibiting NAT10 enhances RNA N6-methyladenosine (m6A) levels, suppressing osteosarcoma growth and glycolysis.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • Dynamic RNA modifications like m6A are crucial in cancer, but upstream regulators remain underexplored.
  • The role of N4-acetylcytidine (ac4C) acetylation enzyme NAT10 in osteosarcoma and its link to m6A modification are investigated.

Discussion:

  • NAT10 knockdown increases m6A levels, suppressing osteosarcoma cell proliferation, migration, and invasion.
  • NAT10 regulates the stability and translation of the m6A reader protein YTHDC1.
  • YTHDC1 influences glycolysis by recognizing m6A sites on PFKM and LDHA mRNAs, affecting their stability.

Key Insights:

  • A novel signaling axis: NAT10/ac4C-YTHDC1/m6A-LDHA/PFKM positively regulates cancer cell glycolysis.
  • NAT10 inhibition suppresses osteosarcoma progression by modulating m6A-dependent glycolysis.
  • YTHDC1 partially rescues NAT10 knockdown effects, confirming its role in the pathway.

Outlook:

  • Targeting the NAT10/ac4C-YTHDC1 axis offers potential therapeutic strategies for osteosarcoma.
  • Further research can elucidate the precise mechanisms of ac4C and m6A crosstalk in cancer.
  • Exploring YTHDC1's role in other cancers could reveal broader therapeutic applications.

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