MI-503 Histone Methyltransferase inhibitor

Cat.No.S7817

MI-503 is a potent and selective Menin-MLL inhibitor with IC50 of 14.7 nM. It shows pronounced growth suppressive activity in a panel of human MLL leukemia cell lines(GI50 at 250 nM-570 nM range), but only a minimal effect in human leukemia cell lines without MLL translocations.
MI-503 Histone Methyltransferase inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 564.63

Quality Control

Cell Culture, Treatment & Working Concentration

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
mouse bone marrow cells Growth inhibition assay 7 days Growth inhibition of MLL-AF9 transformed mouse bone marrow cells after 7 days by MTT assay, GI50 = 0.22 μM. 26744767
Click to View More Cell Line Experimental Data

Chemical Information, Storage & Stability

Molecular Weight 564.63 Formula

C28H27F3N8S

Storage (From the date of receipt)
CAS No. 1857417-13-0 Download SDF Storage of Stock Solutions

Synonyms N/A Smiles CC1=C(C=CC2=C1C=C(N2CC3=CNN=C3)C#N)CN4CCC(CC4)NC5=C6C=C(SC6=NC=N5)CC(F)(F)F

Solubility

In vitro
Batch:

DMSO : 100 mg/mL ( (177.1 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 15 mg/mL

Water : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight

In vivo
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In vivo Formulation Calculator (Clear solution)

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Mechanism of Action

Targets/IC50/Ki
Menin-MLL interaction [1]
(Cell-free assay)
14.7 nM
In vitro
Treatment of murine bone marrow cells (BMC) transformed with the MLL-AF9 oncogene with MI-503 results in substantial growth inhibition, with half-maximal growth inhibitory concentration (GI50) values of 0.22 μM, measured after 7 days of treatment. The cell growth inhibitory effect of this compound is time-dependent, with a pronounced effect achieved after 7-10 days of treatment. It is also very effective in inducing differentiation of MLL leukemia cells and substantially increases expression of CD11b, a myeloid differentiation marker. These effects are accompanied by reduced c-kit (CD117) expression, a marker associated with leukemia stem cells (LSCs). Treatment with sub-micromolar concentrations of this chemical also leads to markedly reduced expression of Hoxa9 and Meis1, downstream targets of MLL fusion proteins substantially upregulated in MLL leukemias[1].
In vivo
MI-503 has very favorable drug-like properties, including metabolic stability and pharmacokinetic profile in mice. It blocks hematologic tumors in vivo and reduces MLL leukemia tumor burden. This compound achieves high level in peripheral blood following a single intravenous or oral dose, while also showing high oral bioavailability (~75%). Prolonged treatment (38 days) with this chemical induces no toxicity in mice as reflected by no alterations in the body weight and no morphological changes in liver and kidney tissues. It could substantially improve survival of MLL leukemic mice and does not impair normal hematopoiesis in vivo[1].
References

Applications

Methods Biomarkers Images PMID
Western blot MLL / Menin S7817-WB1 27888797
Growth inhibition assay Cell viability S7817-viability1 25817203

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