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Small-Molecule Targeting of Oncogenic FTO Demethylase in Acute Myeloid Leukemia.

ABSTRACT: FTO, an mRNA N6-methyladenosine (m6A) demethylase, was reported to promote leukemogenesis. Using structure-based rational design, we have developed two promising FTO inhibitors, namely FB23 and FB23-2, which directly bind to FTO and selectively inhibit FTO's m6A demethylase activity. Mimicking FTO depletion, FB23-2 dramatically suppresses proliferation and promotes the differentiation/apoptosis of human acute myeloid leukemia (AML) cell line cells and primary blast AML cells in vitro. Moreover, FB23-2 significantly inhibits the progression of human AML cell lines and primary cells in xeno-transplanted mice. Collectively, our data suggest that FTO is a druggable target and that targeting FTO by small-molecule inhibitors holds potential to treat AML.

SUBMITTER: Huang Y 

PROVIDER: S-EPMC6812656 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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FTO, an mRNA N<sup>6</sup>-methyladenosine (m<sup>6</sup>A) demethylase, was reported to promote leukemogenesis. Using structure-based rational design, we have developed two promising FTO inhibitors, namely FB23 and FB23-2, which directly bind to FTO and selectively inhibit FTO's m<sup>6</sup>A demethylase activity. Mimicking FTO depletion, FB23-2 dramatically suppresses proliferation and promotes the differentiation/apoptosis of human acute myeloid leukemia (AML) cell line cells and primary bla  ...[more]

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