5.32310

c-Myc Inhibitor IV, KJ-Pyr-9

• Synonyme(s) : c-Myc Inhibitor IV, KJ-Pyr-9, 4-(2-(Furan-2-yl)-6-(4-nitrophenyl)pyridin-4-yl)benzamide, KJPyr9, Krohnke Pyridine-9
• Formule empirique (notation de Hill): C₂₂H₁₅N₃O₄
• Numéro CAS: 581073-80-5
• Poids moléculaire : 385.37
• Code UNSPSC : 12352200
• Nomenclature NACRES : NA.77

Propriétés

• Pureté: ≥97% (HPLC)
• Niveau de qualité: 100
• Forme: powder
• Fabricant/nom de marque: Calbiochem^®
• Conditions de stockage: OK to freeze; protect from light
• Couleur: brown
• Solubilité: DMSO: 50 mg/mL
• Température de stockage: 2-8°C

Description

Description générale

A cell-permeable, blood-brain barrier permeant, bioavailable trisubstituted pyridine compound that inhibits c-Myc transcriptional activity. Shown to directly bind to both the monomeric c-Myc (K_d = 6.5 nM) and to c-Myc-Max heterodimer (K_d = 13.4 nM) with high affinity and disrupt c-Myc-Max interaction. Displays a very weak affinity towards Max-Max homodimer (K_d >1 µM). Also interferes with Max homodimerization, albeit to a lesser extent than c-Myc-Max heterodimerization. Shown to inhibit the c-Myc-driven proliferation of NCI-H460, MDA-MB-231, and SUM-159PT and several other cancer cell lines (IC₅₀ = 5-10 µM). Also diminishes the proliferation of Burkitt lymphoma cell lines expressing high levels of c-Myc (IC₅₀ = 2.5 µM). Suppresses the growth of MDA-MB-231 cells in a xenografted nude mice model (10 mg/kg, i.p., q.d.).

Please note that the molecular weight for this compound is batch-specific due to variable water content.

A cell-permeable, trisubstituted pyridine compound that displays Myc-selective affinity (K_d = 6.5 nM/Myc homodimer, 13.4 nM/Myc-Max dimer, >1.0 µM/Max homodimer) and is 4-times more potent against Myc-Max than Max-Max in DNA-binding assays. Effectively prevents focal microtumors formation following N-Myc, c-Myc, as well as ATG- or CAG-c-Myc transformation of cultured chick embryo fibroblasts/CEF (>99.9% inhibition at 10 µM in ATG-c-Myc-transformed cultures), while exhibiting much reduced or little potency against cultures transformed by v-Src (no inhibition up to 20 µM), v-Jun or PI 3-K H1047R (45.5% inhibition at 10 µM). Selectively inhibits Myc-dependent proliferation of human & avian cultures (Effective conc. 25 to 50 µM; IC₅₀ 1 to 10 µM), while exhibiting little potency against Myc-independent growths of human skin fibroblasts, non-transformed, v-jun-transformed, or methylcholanthrene-transformed quail embryo fibroblasts even at a high concentration of 50 µM. Reported to suppress MDA-MB-231-derived tumor expansion in mice (10 mg/kg/d i.p.) in vivo with a concomitant upregulation of N-Myc downregulated gene 1/NDRG1 protein level in tumor tissue. Pharmacokinetics studies reveal good blood-brain barrier permeability in mice ([Drug] = 3.5 µM/plasma & 12.4 µM/brain 4 h post single 10 mg/kg i.p. dosage) and a plasma half-life of 1.84 h in rats following a single i.v. dose of 1 mg/kg.

Actions biochimiques/physiologiques

Cell permeable: yes

Primary Target
Myc homodimer

Secondary Target
Myc-Max

Conditionnement

Packaged under inert gas

Avertissement

Toxicity: Standard Handling (A)

Reconstitution

Use only fresh DMSO for reconstitution.

Autres remarques

Hart, J.R., et al. 2014. Proc. Natl. Acad. Sci. USA.111, 12556.

Informations légales

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable