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MT-125

Chemical Structure : MT-125

CAS No.: 2404652-80-6

MT-125 (MT125)

Catalog No.: PC-24862Not For Human Use, Lab Use Only.

MT-125 is a specific, brain penetrant small-molecule inhibitor of non-muscle myosin IIA and IIB (NMIIA and IIB) with Ki of 2.7 uM (NMIIA) and EC50 of 1.7 uM (NMIIB).

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Purity & Documentation Purity: >98% (HPLC)

Biological Activity

MT-125 is a specific, brain penetrant small-molecule inhibitor of non-muscle myosin IIA and IIB (NMIIA and IIB) with Ki of 2.7 uM (NMIIA) and EC50 of 1.7 uM (NMIIB).
MT-125 has very limited activity against cardiac myosin II (CMII; KI,CMII = 50 uM).
MT-125 blocks GBM invasion and cytokinesis, and prolongs survival in murine GBM models.
MT-125 increases redox stress and consequent DNA damage, and synergizes with radiotherapy.
MT-125 also induces oncogene addiction to PDGFR signaling through a mechanism that is driven by redox stress, and it synergizes with FDA-approved PDGFR and mTOR inhibitors in vitro.
Combining MT-125 with sunitinib, a PDGFR inhibitor, or paxalisib, a combined phosphatidylinositol 3-kinase (PI3K)/mTOR inhibitor, significantly improves survival in orthotopic GBM models over either drug alone.

Physicochemical Properties

M.Wt 357.41
Formula C22H19N3O2
Appearance Solid
CAS No.
Storage
Solide Powder
-20°C 12 Months; 4°C 6 Months
In Solvent
-80°C 6 Months; -20°C 6 Months
Shipping
Solubility

10 mM in DMSO

Chemical Name/SMILES

(S)-3a-hydroxy-6-methyl-1-(2-methylquinolin-6-yl)-1,2,3,3a-tetrahydro-4H-pyrrolo[2,3-b]quinolin-4-one

References

1. Kenchappa RS, et al. Cell. 2025 Jun 3:S0092-8674(25)00569-0.

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