522606-67-3

SID 3712249 (MiR-544 Inhibitor 1) is an inhibitor of the biogenesis of microRNA-544 (miR-544). MiR-544 represses expression of mTORpromoting tumor cell survival in a hypoxic environment. Inhibition of miR-544 processing with MiR-544 Inhibitor 1 caused apoptosis in triple negative breast cancer cells in response to hypoxic stresssensitized their response to 5-fluorouraciland blocked their growth after transplantion into immunodeficient mice. SID 3712249 (MiR-544 Inhibitor 1) is believed to bind directly to the precursor miRNAblocking production of the mature microRNA and resulting in decreased miR-544HIF-1αand ATM transcripts. MiR-544 Inhibitor 1 was as selective and 25-fold more potent than a 2μ-O-methyl RNA antagomir.

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