566332
Sirt1 Inhibitor VII, Inauhzin
The Sirt1 Inhibitor VII, Inauhzin controls the biological activity of Sirt1. This small molecule/inhibitor is primarily used for Cell Structure applications.
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Synonym(s):
Sirt1 Inhibitor VII, Inauhzin, 10-[2-(5H-[1,2,4]triazino[5,6-b]indol-3-ylthio)butanoyl]-10H-phenothiazine, INZ
Empirical Formula (Hill Notation):
C25H19N5OS2
Molecular Weight:
469.58
UNSPSC Code:
12352200
NACRES:
NA.28
Recommended Products
Quality Level
Assay
≥98% (HPLC)
form
powder
potency
0.7 μM IC50
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
protect from light
color
beige
solubility
DMSO: 100 mg/mL
shipped in
wet ice
storage temp.
2-8°C
General description
A cell-permeable phenothiazine derivative that selectively inhibits SirT1 (IC50 ≤2.0 µM), but not SirT2, SirT3, or HCAC8 (IC50 >50 µM), activity and effectively elevates cellular p53 lysine acetylation (Effective conc. 2 µM), thereby protecting p53 lysine residues from MDM2-mediated ubiquitination without directly inhibiting MDM2 function per se or its activity toward deacetylated p53. Shown to inhibit cancer cell growth in a p53-dependent manner (IC50 = 2.0 and 15.7µM, respectively, against HCT116p53+/+ and HCT116p53-/- cells) and synergize with Nutlin-3 (Cat. Nos. 444143, 444151, & 444152) in blocking HCT116p53+/+ proliferation in vitro (by 29%, 76%, and >98, respectively, with 1 µM INZ alone, 4 µM Nutlin-3 alone, or in combination) and inducing HCT116p53+/+ apoptosis in mice in vivo (3.5% above control TUNEL staining with either drug treatment alone or 25% with combined treatment; 15 mg INZ/kg via daily i.p; 150 mg Nut-3/kg b.i.d. p.o.).
A cell-permeable phenothiazine derivative that selectively inhibits SirT1 (IC50 ≤2.0 µM), but not SirT2, SirT3, or HCAC8 (IC50 >50 µM), activity. Effectively elevates cellular p53 lysine acetylation (Effective conc. 2 µM), thereby protecting p53 lysine residues from MDM2-mediated ubiquitination without inhibiting MDM2 activity toward deacetylated p53. Shown to inhibit cancer cell growth in a p53-dependent manner (IC50 = 2.0 and 15.7µM, respectively, against HCT116p53+/+ and HCT116p53-/- cells) and synergize with Nutlin-3 (Cat. Nos. 444143, 444151, & 444152) in blocking HCT116p53+/+ proliferation in vitro (1 µM INZ & 4 µM Nutlin-3) and inducing HCT116p53+/+ apoptosis in mice in vivo (15 mg INZ/kg/d i.p; 150 mg Nut-3/kg/12 h p.o.).
Biochem/physiol Actions
Cell permeable: yes
Reversible: yes
Packaging
Packaged under inert gas
Warning
Toxicity: Standard Handling (A)
Other Notes
Zhang, Q., et al. 2012. EMBO Mol. Med.4, 298.
Zhang, Y., et al. 2012. Cancer Biol. Ther.13, 915
Zhang, Y., et al. 2012. Cancer Biol. Ther.13, 915
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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