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RO-5963

Alias: RO-5963 RO5963 RO 5963
Cat No.:V6157 Purity: ≥98%
RO-5963 is a dual (bifunctional) inhibitor of p53-MDM2 and p53-MDMX interactions, with IC50s of about 17 nM and 24 nM, respectively.
RO-5963
RO-5963 Chemical Structure CAS No.: 1416663-77-8
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
5mg
Other Sizes
Official Supplier of:
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Product Description
RO-5963 is a dual (bifunctional) inhibitor of p53-MDM2 and p53-MDMX interactions, with IC50s of about 17 nM and 24 nM, respectively.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
In MCF7 and ZR75-30 cell lines, RO-5963 (10–20 μM; 48 hours) exhibits more apoptotic activity than Nutlin [1]. Effectively activating p53 and raising p21 and MDM2 levels, RO-5963 (10 μM, 24 hours) [1].
Cell Assay
Apoptosis analysis [1]
Cell Types: ZR75-30, MCF7 Cell
Tested Concentrations: 10, 20 μM
Incubation Duration: 48 hrs (hours)
Experimental Results: Strong display of apoptotic activity.

Western Blot Analysis[1]
Cell Types: LNCap, U2OS, RKO, A489, 22Rv1, HCT116, H460, LOX, MCF7, A549, G401 Cell
Tested Concentrations: 10 μM
Incubation Duration: 24 hrs (hours)
Experimental Results: Effectively activates p53 and increases p21 and MDM2 level.
References

[1]. Activation of the p53 pathway by small-molecule-induced MDM2 and MDMX dimerization. Proc Natl Acad Sci U S A. 2012 Jul 17;109(29):11788-93.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C24H21CLF2N4O5
Molecular Weight
518.897151708603
Exact Mass
518.116
CAS #
1416663-77-8
PubChem CID
136209736
Appearance
Light yellow to yellow solid powder
LogP
1.4
Hydrogen Bond Donor Count
5
Hydrogen Bond Acceptor Count
8
Rotatable Bond Count
7
Heavy Atom Count
36
Complexity
959
Defined Atom Stereocenter Count
0
SMILES
CC1=C(C=CC\2=C1N=C/C2=C\C3=C(N(C(=O)N3)C(C4=CC(=C(C=C4)F)F)C(=O)NC(CO)CO)O)Cl
InChi Key
IFYMUYSGUSHEPI-NTUHNPAUSA-N
InChi Code
InChI=1S/C24H21ClF2N4O5/c1-11-16(25)4-3-15-13(8-28-20(11)15)7-19-23(35)31(24(36)30-19)21(22(34)29-14(9-32)10-33)12-2-5-17(26)18(27)6-12/h2-8,14,21,32-33,35H,9-10H2,1H3,(H,29,34)(H,30,36)/b13-7+
Chemical Name
2-[5-[(Z)-(6-chloro-7-methylindol-3-ylidene)methyl]-4-hydroxy-2-oxo-1H-imidazol-3-yl]-2-(3,4-difluorophenyl)-N-(1,3-dihydroxypropan-2-yl)acetamide
Synonyms
RO-5963 RO5963 RO 5963
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~150 mg/mL (~289.07 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 3.75 mg/mL (7.23 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 37.5 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 3.75 mg/mL (7.23 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 37.5 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.9272 mL 9.6358 mL 19.2715 mL
5 mM 0.3854 mL 1.9272 mL 3.8543 mL
10 mM 0.1927 mL 0.9636 mL 1.9272 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
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Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Biological Data
  • RO-5963 stabilizes p53 and activates the p53 pathway in cancer cells. (A) Chemical structure and in vitro inhibitory activity of RO-5963 and the MDM2 antagonist, nutlin-3a. (B) RO-5963 stabilizes p53 and elevates protein levels of p53 targets, p21 and MDM2. Log-phase MCF7 cells were incubated with RO-5953 for 24 h, and cell lysates were analyzed by Western blotting. (C) Dose-dependent induction of p53 target genes in MCF7 cells 24 h post RO-5963 addition. (D) RO-5963 inhibits p53-MDM2 and p53-MDMX binding in cancer cells. MCF7 cells were incubated with 10 μM nutlin-3a and 10 or 20 μM RO-5963 for 4 h, and the levels of p53, MDM2, and MDMX were determined in protein complexes immunoprecipitated with anti-MDMX or anti-p53 antibodies by Western blotting.[1].Graves B, et al. Activation of the p53 pathway by small-molecule-induced MDM2 and MDMX dimerization. Proc Natl Acad Sci U S A. 2012 Jul 17;109(29):11788-93.
  • RO-5963 activates p53 signaling in diverse cellular context by a nongenotoxic mechanism. (A) Antitumor activity of RO-5963 depends on the p53 status. Viability of three wild-type p53 (MCF7, HCT116, RKO) and two mutant p53 (SW480, MDA-MB-435) cancer cell lines was determined by the CellTiter-Glo assay after 5 d of incubation with RO-5963 and expressed as percentage of controls ± SD. (B) RO-5963 does not induce genotoxic response in cancer cells. Cells were incubated with 10 μM RO-5963 or 1 μM doxorubicin for 24 h, and the levels of total and Ser15-phosphorylated p53 were determined by Western blotting. (C) Binding of RO-5963 prevents MDM2-mediated degradation of MDMX. G401 and H460 cells were incubated with the indicated concentrations of RO-5963 with or without 10 μM nutlin-3a, and relative levels of p53, p21, MDM2, and MDMX were determined by Western blotting. Blots representative of three independent experiments are shown.[1].Graves B, et al. Activation of the p53 pathway by small-molecule-induced MDM2 and MDMX dimerization. Proc Natl Acad Sci U S A. 2012 Jul 17;109(29):11788-93.
  • Apoptotic activity of RO-5963 and MDMX status. (A) Breast cancer cells respond to RO-5963 depending on the levels of MDM2 and MDMX. Three cell lines with variable ratios of MDMX/MDM2 proteins were exposed to nutlin-3a (10 μM) and RO-5963 (10 or 20 μM) for 48 h, and the percentage of apoptotic cells (± SD) was determined by the Annexin V assay. (B) Cytotoxicity of RO-5963 on MCF7 cells. Phase-contrast images were taken 48 h after addition of 20 μM RO5963. (C) Relative protein levels of MDM2 and MDMX in a panel of solid tumor cell lines. Cells lines at subconfluent stage of growth were analyzed for protein levels by Western blotting. (D) Apoptotic response to RO-5963 and nutlin in a panel of cancer cell lines with wild-type and mutant p53. Log-phase cells were incubated with nutlin-3a and RO-5963 for 48 h and analyzed for apoptosis as in A. Two mutant p53 cell lines, MDA-MB-435 and SW480, were included as controls.[1].Graves B, et al. Activation of the p53 pathway by small-molecule-induced MDM2 and MDMX dimerization. Proc Natl Acad Sci U S A. 2012 Jul 17;109(29):11788-93.
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