G-573 - CAS 22868-35-5
Catalog number:
22868-35-5
Category:
Inhibitor
Not Intended for Therapeutic Use. For research use only.
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Description:
G-573 is an allosteric inhibitor of MEK that is both potent and selective. The IC(50) value for pERK inhibition in HCT116 tumours by G-573 was estimated to be 0.406  µM. The IC(50) values for tumour growth inhibition in HCT116 and H2122 were estimated to be 3.43 and 2.56 µM, respectively. ED(50) estimates in HCT116 and H2122 mouse xenograft models were estimated to be ~4.6 and 1.9 mg/kg/day, respectively.
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Synonyms:
G-573
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Current Developer:
Genentech
1.Preclinical disposition and pharmacokinetics-pharmacodynamic modeling of biomarker response and tumour growth inhibition in xenograft mouse models of G-573, a MEK inhibitor.
Choo EF1, Belvin M, Chan J, Hoeflich K, Orr C, Robarge K, Yang X, Zak M, Boggs J. Xenobiotica. 2010 Nov;40(11):751-62. doi: 10.3109/00498254.2010.514365.
The mitogen-activated protein kinase/extracellular signal-regulated kinase (MEK) pathway is a key signalling pathway that regulates cell proliferation. G-573 is an allosteric inhibitor of MEK that is both potent and selective. The objectives of these studies were to characterize the disposition of G-573 in preclinical species and to determine the relationship of G-573 plasma concentrations to pERK (phosphorylated ERK) and to tumour growth inhibition in HCT116 and H2122 mouse xenograft models. The clearance of G-573 was low in mouse (7.7 ml/min/kg), rat (2.24 ml/min/kg), dog (10 ml/min/kg), and cynomolgus monkey (0.754 ml/min/kg) while volumes of distribution (0.114-1.77 l/kg) was low to moderate, resulting in moderate half-lives across species (~2-9 h). Indirect response models were used to characterize the relationship between plasma concentration of G-573 to both pERK inhibition and tumour growth inhibition. The IC(50) value for pERK inhibition in HCT116 tumours by G-573 was estimated to be 0.
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CAS 22868-35-5 G-573

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