2. Academic Validation
  3. Identification of novel 2, 6-Di-substituted Imidazo[1,2-a]pyridine derivatives as potent METTL3 inhibitors

Identification of novel 2, 6-Di-substituted Imidazo[1,2-a]pyridine derivatives as potent METTL3 inhibitors

  • Bioorg Chem. 2025 Oct:165:108980. doi: 10.1016/j.bioorg.2025.108980.
Ruoyang Miao 1,  Xiaohan Wu 1,  Ning Wang 1,  Linnan Zhao 1,  Guanghe Zhu 1,  Ruiying Zhu 1,  Han Wei 1,  Chunxia Liu 2,  Weiyan Cheng 3,  Xin Tian 4
Affiliations

Affiliations

  • 1 Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou 450052, China; Henan Sino-US International Joint Laboratory of Clinical Pharmacy, Zhengzhou 450052, China.
  • 2 Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou 450052, China; Henan Sino-US International Joint Laboratory of Clinical Pharmacy, Zhengzhou 450052, China. Electronic address: chunxialiu1993@foxmail.com.
  • 3 Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou 450052, China; Henan Sino-US International Joint Laboratory of Clinical Pharmacy, Zhengzhou 450052, China. Electronic address: fccchengwy@zzu.edu.cn.
  • 4 Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Key Laboratory of Precision Clinical Pharmacy, Zhengzhou University, Zhengzhou 450052, China; Henan Sino-US International Joint Laboratory of Clinical Pharmacy, Zhengzhou 450052, China. Electronic address: tianx@zzu.edu.cn.
PMID: 40961538 DOI: 10.1016/j.bioorg.2025.108980
Abstract

METTL3, the core catalytic subunit of the N6-methyladenosine (m6A) methyltransferase complex, aberrantly overexpressed in various cancers and emerged as a potential target for Cancer treatment. Here, we report the discovery of a series of 2, 6-di-substituted imidazo[1,2-a]pyridine derivatives as novel, potent, and selective METTL3 inhibitors. Compound 30t exhibited excellent inhibitory activity against METTL3 with an IC50 value of 45.31 nM and good antiproliferation ability in ovarian Cancer SKOV3 and acute myeloid leukemia MOLM-13 cells with IC50 values of 6.42 μM and 12.34 μM, respectively. Compound 30t exhibited high selectivity towards METTL3 compared to DNMT1, EZH1, MLL1, and PRMT1. In addition, 30t reduced the m6A level of total RNA in MOLM-13 and SKOV3 cells, induced cell Apoptosis, and inhibited cell migration. Western blot assay demonstrated that 30t could reduce the expression of m6A downstream target genes (c-Myc and BCL2). Meanwhile, compound 30t displayed good pharmacokinetic properties and favorable antitumor activity in vivo. Collectively, this study provides a novel compound for further development of Anticancer drugs.

Keywords

Acute myeloid leukemia; Imidazo[1,2-a]pyridine; METTL3 inhibitor; Ovarian carcinoma.

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