Dexamethasone
For research use only.
Catalog No.S1322
34 publications
CAS No. 50-02-2
Dexamethasone is a potent synthetic member of the glucocorticoid class of steroid drugs, and an interleukin receptor modulator that has anti-inflammatory and immunosuppressant effects. Dexamethasone induces autophagy and mitophagy. Dexamethasone is tested in hospitalized patients with COVID-19 and is found to have benefits for critically ill patients.
Purity & Quality Control
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Biological Activity
| Description | Dexamethasone is a potent synthetic member of the glucocorticoid class of steroid drugs, and an interleukin receptor modulator that has anti-inflammatory and immunosuppressant effects. Dexamethasone induces autophagy and mitophagy. Dexamethasone is tested in hospitalized patients with COVID-19 and is found to have benefits for critically ill patients. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Targets |
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| In vitro |
Dexamethasone results in decrease in transmonolayer paracellular permeability mainly to sucrose, fluorescein and dextrans of up to 20 KDa in an immortalised rat brain endothelial cell line (GPNT). Dexamethasone results in filamentous actin and the cytoskeleton associated protein cortactin being highly concentrated in the regions of cell-cell contact with few F-actin stress fibres visible within the cytoplasm in cultured rat brain endothelial cells, an observation consistent with a more differentiated barrier phenotype induced by dexamethasone. Dexamethasone treatment has been shown to strongly stimulate the level of the Id-1 protein, which is a serum-inducible helix-loop-helix transcriptional repressor, involved in cell differentiation, and this effect was shown to be associated with reorganisation of ZO-1 to the cell periphery in Con8 mammary epithelial tumor cells. Dexamethasone prevents cytokine-induced enhanced expression of MMP-9 and alterations in the expression of ZO-1 in untreated GPNT monolayers. [1] Dexamethasone depletes both basal and TNF-alpha-stimulated GSH levels by down-regulating the gamma-GCS-heavy subunit transcription via a mechanism involving AP-1 (c-Jun) in alveolar epithelial cells. Dexamethasone decreases both basal and stimulated GSH levels (TNF-α-treated) in alveolar epithelial cells (A549), without any change in GSSG. [2] |
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| Cell Data |
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| Assay |
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| In vivo | Dexamethasone is administered i.m. to pregnant ewes, leads to the following results (1) blood pressure is unchanged; (2) as previously reported in the fetus, sensitivity to endothelin-1 (ET) is increased; (3) acetylcholine-induced relaxation is increased; (4) L-NAME suppressible vasodilatory response to ET is abolished; (5) there is no change in endothelium-independent vasodilatation; and (6) there is no change in eNOS RNA and protein levels, when compared to saline treated controls. [3] |
Protocol
Solubility (25°C)
| In vitro | DMSO | 79 mg/mL (201.29 mM) |
|---|---|---|
| Water | Insoluble | |
| Ethanol | '''6 mg/mL | |
| In vivo | Add solvents to the product individually and in order(Data is from Selleck tests instead of citations): 5% DMSO+45% PEG 300+H2O For best results, use promptly after mixing. |
13mg/mL |
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Chemical Information
| Molecular Weight | 392.46 |
|---|---|
| Formula | C22H29FO5 |
| CAS No. | 50-02-2 |
| Storage |
powder in solvent |
| Synonyms | N/A |
| Smiles | CC1CC2C3CCC4=CC(=O)C=CC4(C3(C(CC2(C1(C(=O)CO)O)C)O)F)C |
In vivo Formulation Calculator (Clear solution)
| Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment) | ||||||||||
| Dosage | mg/kg |  |
Average weight of animals | g | |
Dosing volume per animal | ul | |
Number of animals | |
| Step 2: Enter the in vivo formulation () | ||||||||||
| % DMSO % % Tween 80 % ddH2O | ||||||||||
| CalculateReset | ||||||||||
Calculation results:
Working concentration： mg/ml；
Method for preparing DMSO master liquid: ： mg drug pre-dissolved in μL DMSO (Master liquid concentration mg/mL，)
Method for preparing in vivo formulation：Take DMSO master liquid, next addμL PEG300， mix and clarify, next addμL Tween 80，mix and clarify, next add μL ddH2O，mix and clarify.
1.Please make sure the liquid is clear before adding the next solvent.
2.Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
Bio Calculators
Molarity Calculator
Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:
Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)
*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
Dilution Calculator
Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
Enter the chemical formula of a compound to calculate its molar mass and elemental composition:
Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2
Instructions to calculate molar mass (molecular weight) of a chemical compound:
To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (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.
Molarity Calculator
Clinical Trial Information
| NCT Number | Recruitment | interventions | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|---|
| NCT04345588 | Not yet recruiting | Drug: Dexamethasone injection | Dexamethasone Efficacy as an Adjuvant in Supraclavicular Block | Assiut University | January 1 2021 | Phase 2 |
| NCT03660072 | Not yet recruiting | Other: Non-Interventional | Multiple Myeloma | Bristol-Myers Squibb | January 31 2021 | -- |
| NCT04246333 | Not yet recruiting | Other: Mode of Delivery of Feeds | BPD - Bronchopulmonary Dysplasia|VLBW - Very Low Birth Weight Infant|Feeding Disorder Neonatal|Feeding; Difficult Newborn|Premature Birth|Chronic Lung Disease of Prematurity | Johns Hopkins All Children''s Hospital | September 1 2020 | Not Applicable |
| NCT04529512 | Not yet recruiting | Drug: DEXTENZA® | Ocular Disease Requiring Surgery | Nathan Steinle|Ocular Therapeutix Inc.|California Retina Consultants | August 2020 | Phase 4 |
Tech Support
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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Frequently Asked Questions
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Question 1:
I'm loonkig for Dexamethasone to use in cell culture, would it be better to use the Dexamethasone S1322, the sodiume phosphate S4028 or the acetate S3124?
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Answer:
S1322 is the free base form of Dexamethasone, S4028 is the sodium phosphate form and S3124 is the acetate salt. All of them have similar biological activity in tissue culture, however, their suitabilities vary in different solvents. As free base, S1322 has high solubility in DMSO (79mg/ml), poor solubility in water (<1mg/ml), and moderate solubility in ethanol (6mg/ml). As sodium phosphate salt, S4028 has high solubility in water (103mg/ml) but is insoluble in DMSO and ethanol (<1mg/ml). The solubility of S3124 is 87mg/ml in DMSO, <1mg/ml in water, and 20mg/ml in ethanol. Selection can be made based on the customer's experimental setup.
