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R59022

Alias: R59022 R 59022 R-59022
Cat No.:V7780 Purity: ≥98%
R59022 (R-59022; DKGI-I) is a novel and potent DGKalpha inhibitor and serotonin receptor antagonist.
R59022
R59022 Chemical Structure CAS No.: 93076-89-2
Product category: PKC
This product is for research use only, not for human use. We do not sell to patients.
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Top Publications Citing lnvivochem Products
Product Description

R59022 (R-59022; DKGI-I) is a novel and potent DGKalpha inhibitor and serotonin receptor antagonist. It inhibits diacylglycerol kinase with IC50 of 2.8 μM.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
59-022 (1 minute, 10 μM) strengthens the aggregation [2]. R 59-022 (30 uM, 0–60 minutes) causes basophils to release more normetins [3]. In HeLa and U87 cells, R 59-022 (40 uM, 30 minutes) activates PKC [4]. In Vero cells, R 59-022 (0-10 uM, 4 hours) bursts EBOV [5].
ln Vivo
The median survival of SCID mice transplanted with U87 GBM cells was significantly increased by R 59-022 (2 mg/kg, intraperitoneal injection, 12 days) [6].
Cell Assay
Western Blot Analysis [4]
Cell Types: HeLa Cell
Tested Concentrations: 40 uM
Incubation Duration: 30 minutes
Experimental Results: Phosphorylation of PKC downstream targets increased approximately 2.5-fold.
Animal Protocol
Animal/Disease Models: SCID (severe combined immunodeficient) mouse implanted with U87 GBM cells [6]
Doses: 10 mg/kg
Route of Administration: intraperitoneal (ip) injection
Experimental Results: Median survival increased and tumor volume diminished.
References

[1]. R 59 022, a diacylglycerol kinase inhibitor. Its effect on diacylglycerol and thrombin-induced C kinase activation in the intact platelet. J Biol Chem. 1985 Dec 15;260(29):15762-70.

[2]. A diacylglycerol kinase inhibitor, R59022, potentiates secretion by and aggregation of thrombin-stimulated human platelets. Biochem J. 1987 May 1;243(3):809-13.

[3]. Influence of phorbol esters, and diacylglycerol kinase and lipase inhibitors on noradrenalinerelease and phosphoinositide hydrolysis in chromaffin cells. Br J Pharmacol. 1990 Nov;101(3):521-6.

[4]. Dual activities of ritanserin and R59022 as DGKα inhibitors and serotonin receptor antagonists. Biochem Pharmacol. 2017 Jan 1;123:29-39.

[5]. A Diacylglycerol Kinase Inhibitor, R-59-022, Blocks Filovirus Internalization in Host Cells. Viruses. 2019 Mar 1;11(3). pii: E206.

[6]. Diacylglycerol kinase α is a critical signaling node and novel therapeutic target in glioblastoma and other cancers. Cancer Discov. 2013 Jul;3(7):782-97.

Additional Infomation
6-[2-[4-[(4-fluorophenyl)-phenylmethylidene]-1-piperidinyl]ethyl]-7-methyl-5-thiazolo[3,2-a]pyrimidinone is a diarylmethane.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C27H26FN3OS
Molecular Weight
459.58
Exact Mass
459.178
CAS #
93076-89-2
Related CAS #
R 59-022 hydrochloride;93076-98-3
PubChem CID
3012
Appearance
White to off-white solid powder
Density
1.26g/cm3
Boiling Point
619.8ºC at 760mmHg
Flash Point
328.6ºC
Index of Refraction
1.654
LogP
5.281
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
5
Rotatable Bond Count
5
Heavy Atom Count
33
Complexity
868
Defined Atom Stereocenter Count
0
SMILES
O=C1N2C(SC=C2)=NC(C)=C1CCN1CC/C(=C(\C2C=CC(F)=CC=2)/C2C=CC=CC=2)/CC1
InChi Key
MFVJXLPANKSLLD-UHFFFAOYSA-N
InChi Code
InChI=1S/C27H26FN3OS/c1-19-24(26(32)31-17-18-33-27(31)29-19)13-16-30-14-11-22(12-15-30)25(20-5-3-2-4-6-20)21-7-9-23(28)10-8-21/h2-10,17-18H,11-16H2,1H3
Chemical Name
6-[2-[4-[(4-fluorophenyl)-phenylmethylidene]piperidin-1-yl]ethyl]-7-methyl-[1,3]thiazolo[3,2-a]pyrimidin-5-one
Synonyms
R59022 R 59022 R-59022
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 : ~62.5 mg/mL (~135.99 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (5.44 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 25.0 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: ≥ 2.5 mg/mL (5.44 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 25.0 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.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (5.44 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (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 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.1759 mL 10.8795 mL 21.7590 mL
5 mM 0.4352 mL 2.1759 mL 4.3518 mL
10 mM 0.2176 mL 1.0879 mL 2.1759 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?
  • Enter 350.26 in the Molecular Weight (MW) box
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  • Enter 5 in the Volume box and choose the correct unit (mL)
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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
g/mol

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
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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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
  • Ritanserin inhibits the activity of purified DGKα. Compounds were titrated to 0.5 and 2 mol% into PC:DAG:PS liposomes containing DAG. Change in ATP-dependent DGKα activity in the presence of (A) R59022 and (B) Ritanserin with 5 mol% DAG. Change in DAG-dependent activity of DGKα in the presence of (C) R59022 and (D) Ritanserin with 1 mM ATP. Key: ( An external file that holds a picture, illustration, etc. Object name is nihms826093ig1.jpg) No inhibitor, ( An external file that holds a picture, illustration, etc. Object name is nihms826093ig2.jpg) 0.5 mol% drug, ( An external file that holds a picture, illustration, etc. Object name is nihms826093ig3.jpg) 2.0 mol% drug. Each point represents a mean of triplicate ± SEM of a representative experiment. Two-Way ANOVA was used to analyze statistical significance, followed by Tukey post-hoc analysis: *p <0.0001 differences between Vmax of control and each drug dose, †p<0.0001 differences between Vmax with 0.5 mol% and 2.0 mol% drugs.[4]. Boroda S, et al. Dual activities of ritanserin and R59022 as DGKα inhibitors and serotonin receptor antagonists. Biochem Pharmacol. 2017 Jan 1;123:29-39.
  • R59022 and ritanserin are more potent against DGKα than other DGKs when tested using various DAG species. (A) FLAG-DGKs over-expressed in HEK 293 T cells were separated on an SDS-PAGE gel and probed with FLAG antibody. A representative image is shown. Using PC:DAG:PS liposomes with dioleoyl DAG, DGK activity was tested using cell homogenate with and without (B) 20 μM R59022 and (C) 20 μM ritanserin. Liposomes were prepared with dioctanoyl DAG and DGK activity was tested with and without (D) 20 μM R59022 and (E) 20 μM ritanserin. Liposomes were prepared with stearoyl arachidonoyl DAG and DGK activity was tested with and without (F) 20 μM R59022 and (G) 20 μM ritanserin. The values shown are percent of activity from no inhibitors, which was set to 100. The activity of lysates over-expressing only GFP was less than 10% of the lysates overexpressing DGKs and did not change in the presence of inhibitors. DGK specific activity was normalized to GFP specific activity. Each bar represents mean of triplicate ± SEM of a representative experiment. One-way ANOVA was used to test statistical significance between DGK activity with inhibitor and 100% activity - DGK activity without inhibitor, followed by Tukey’s post-hoc analysis. *p<0.05. A log dose-dependent curve of DGKα activity using with (H) R59022 and (I) Ritanserin. A log dose-dependent curve of DGKι activity with (J) R59022 and (K) Ritanserin. The assays contained cell homogenate, 1 mM ATP and 10 mol% DAG. Veh represents enzyme activity with no drug. The data points on the graphs were fitted to linear interpolation.[4]. Boroda S, et al. Dual activities of ritanserin and R59022 as DGKα inhibitors and serotonin receptor antagonists. Biochem Pharmacol. 2017 Jan 1;123:29-39.
  • Ritanserin and R59022 activate PKC in HeLa and U87 cells but not in U251 cells. (A) Schematic outlining the rationale and signaling pathway relevant to the experiment. (B) A representative western blot of HeLa cell extracts treated with PKC activator (PMA), PKC inhibitor (bis), R59022, ritanserin, and ketanserin probed with the phosphor-(Ser) PKC substrate antibody. (C) Quantitation of four independent experiments in HeLa cells. (D) A ketanserin dose-dependent curve of purified DGKα activity. (E) A quantitation of three independent experiments in U87 cells. (F) A quantitation of three independent experiments in U251 cells. The mRNA expression of indicated DGKs (top) and indicated 5-HTRs (bottom) in (G) HeLa, (H) U87 and (I) U251 cells. Each bar represents mean ± SEM. One-way ANOVA was used to analyze statistical significance between control and each treatment, followed by Dunnett’s post-hoc analysis: ***p<0.0001, **p<0.0005, *p<0.005, N.S= no statistical significance.[4]. Boroda S, et al. Dual activities of ritanserin and R59022 as DGKα inhibitors and serotonin receptor antagonists. Biochem Pharmacol. 2017 Jan 1;123:29-39.
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