1. GPCR/G Protein
  2. Glucocorticoid Receptor

Dexamethasone (Synonyms: Hexadecadrol; Prednisolone F)

Cat. No.: HY-14648 Purity: 99.70%
Handling Instructions

Dexamethasone is a glucocorticoid receptor agonist.

For research use only. We do not sell to patients.

Dexamethasone Chemical Structure

Dexamethasone Chemical Structure

CAS No. : 50-02-2

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Other Forms of Dexamethasone:

    Dexamethasone purchased from MCE. Usage Cited in: Arch Med Res. 2018 Nov 15. pii: S0188-4409(18)30726-4.

    Inhibition of SphK2 by si-RNA (si-SphK2) and ABC294640 (ABC) decrease phosphorylation and acetylation of STAT3 . Also, both si-RNA and ABC294640 reverse IL-6 induced increasing phosphorylation and acetylation of STAT3.
    • Biological Activity

    • Protocol

    • Technical Information

    • Purity & Documentation

    • References


    Dexamethasone is a glucocorticoid receptor agonist.

    IC50 & Target

    Glucocorticoid receptor[1]

    In Vitro

    Dexamethasone regulates several transcription factors, including activator protein-1, nuclear factor-AT, and nuclear factor-kB, leading to the activation and repression of key genes involved in the inflammatory response[1]. Dexamethasone potently inhibits granulocyte-macrophage colony stimulating factor (GM-CSF) release from A549 cells with EC50 of 2.2 nM. Dexamethasone (EC50=36 nM) induces transcription of the β2-receptor is found to correlate with glucocorticoid receptor (GR) DNA binding and occurred at 10-100 fold higher concentrations than the inhibition of GM-CSF release. Dexamethasone (IC50=0.5 nM) inhibits a 3×κB (NF-κB, IκBα, and I-κBβ), which is associated with inhibition of GM-CSF release[2].

    In Vivo

    It has previously been reported that treatment with Dexamethasone at a dose of 2×5 mg/kg efficiently inhibits lipopolysaccharide (LPS)-induced inflammation. In our experimental system, treatment with a single dose of Dexamethasone 10 mg/kg (i.p.) significantly decreases recruitment of granulocytes as well as spontaneous production of oxygen radicals compared with animals expose to LPS and injected with solvent alone (saline). The effects are statistically significant when administered both 1 h before and 1 h after inhalation of LPS. The number of granulocytes in BALF decreased to levels comparable to healthy animals (given an aerosol of water)[3]. Rats treated with Dexamethasone consume less food and weighed less than control rats. Treated rats also weigh less than pair-fed animals though their food intake is similar. Five days of Dexamethasone injection result in a significant increase in both the liver mass (+42%) and the liver to body weight ratio (+65%). The wet weight of gastrocnemius muscle decreases 20% after 5 days of treatment, but it remains unaffected relative to body weight (g/100 g body weight), indicating that muscle weight loss paralleled body weight loss[4].

    Solvent & Solubility
    In Vitro: 

    DMSO : ≥ 56 mg/mL (142.69 mM)

    H2O : < 0.1 mg/mL (insoluble)

    *"≥" means soluble, but saturation unknown.

    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.5480 mL 12.7402 mL 25.4803 mL
    5 mM 0.5096 mL 2.5480 mL 5.0961 mL
    10 mM 0.2548 mL 1.2740 mL 2.5480 mL
    *Please refer to the solubility information to select the appropriate solvent.
    In Vivo:
    • 1.

      Dexamethasone (DEX) suspension is prepared separately by triturating an appropriate weight of Dexamethasone with aqueous methyl cellulose (0.5%, w/v) to form suspensions with concentrations of 1.2 mg/mL (DEX)[5].

    Animal Administration

    Female C57Bl/6JBom mice (age 10-12 weeks) are used in all experiments. Dexamethasone is administered as a single injection of 1 or 10 mg/kg. Dexamethasone is dissolved in saline and 400 μL are injected intraperitoneally, either 1 h before or 1 h after LPS exposure. In one experiment, N-acetylcysteine (NAC) (100 and 500 mg/kg) is injected successively every 4•5 h, starting 1 h before challenge (five injections in total). A control group of LPS-exposed animals are injected intraperitoneally with solvent alone (saline). Intratracheal administration is performed by instillation of 100 μL NAC (50, 100 or 500 mg/kg) or Dexamethasone (10 mg/kg) into the lungs of mice anaesthetized with 15 mg/kg Rapinovet (i.v.).
    Male Sprague-Dawley rats are used.Dexamethasone-treated rats are injected intraperitoneally once daily with Dexamethasone (1.5 mg/kg body weight) for 5 days and are allowed to feed ad libitum. The Dexamethasone dose (1.5 mg/kg/day) and the duration of treatment (5 days) are specifically chosen as this treatment induced a reproducible and marked catabolic state. Control rats received no treatment and are fed ad libitum. In order to take into account the decrease in food intake induced by Dexamethasone treatment, a third group of pair-fed rats are used. These rats are provided with the same amount of food as Dexamethasone-injected rats and are treated with a daily isovolumic intraperitoneal injection of NaCl (0.9%) for 5 days. After the final injection of Dexamethasone or NaCl, the animals are fasted overnight prior to being killed by decapitation.

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Molecular Weight




    CAS No.



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    4°C, protect from light


    Room temperature in continental US; may vary elsewhere

    Purity: 99.70%

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    Cat. No.: HY-14648