2. Vitamin D Related/Nuclear Receptor
  3. Nuclear Hormone Receptor 4A/NR4A
  4. Cytosporone B

Cytosporone B  (Synonyms: Csn-B; Dothiorelone G)

Cat. No.: HY-N2148 Purity: 98.50%
COA Handling Instructions

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Cytosporone B (Csn-B; Dothiorelone G) is a naturally occurring nuclear orphan receptor Nur77/NR4A1 agonist with an EC50 of 0.278 nM.

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

Cytosporone B Chemical Structure

Cytosporone B Chemical Structure

CAS No. : 321661-62-5

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10 mM * 1 mL in DMSO
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Based on 9 publication(s) in Google Scholar

Cytosporone B Related Antibodies

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Nurr1/NR4A2 Nur77/NR4A1

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Cytosporone B (Csn-B; Dothiorelone G) is a naturally occurring nuclear orphan receptor Nur77/NR4A1 agonist with an EC50 of 0.278 nM.

IC50 & Target

Nur77/NR4A1

 

In Vitro

Cytosporone B targets the ligand binding domain of Nur77, which selectively stimulates the transactivational activity of Nur77. Cytosporone B induces luciferase activity in cells that are cotransfected with GAL4- Nur77 or GAL4-LBD. The EC50 of cytosporone B for Nur77 is 0.278 nM. Cytosporone B displays robust pro-apoptotic activity in gastric cancer cells BGC-823. 63.5% of the cells are apoptotic when treated with cytosporone B for 48 h. Cytosporone B shows selective effect on cancerous cells. Cytosporone B inhibits proliferation of human gastric cancer BGC-823 cells and human colon cancer SW620 cells by 470%, but it has a modest effect on human lung cancer H1299 cells and human hepatoma HepG2 cells[1].

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

Cytosporone B Related Antibodies
In Vivo

In the hepatocytes of wild-type mice, the transcriptional activity of the reporter is induced five-fold with cytosporone B treatment. In wild-type mice, cytosporone B treatment significantly increases glucose levels from 3.2 to 11.4 mM within the first 30 min, and thereafter blood glucose gradually decreased before reaching the initial level after 300 min[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Molecular Weight

322.40

Formula

C18H26O5
CAS No.
Appearance

Solid

Color

Off-white to light yellow

SMILES

O=C(OCC)CC1=CC(O)=CC(O)=C1C(CCCCCCC)=O
Structure Classification
Initial Source

fungus Eupenicillium sp. HJ002
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 1 year
-20°C 6 months
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (310.17 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Ethanol : ≥ 50 mg/mL (155.09 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.1017 mL 15.5087 mL 31.0174 mL
5 mM 0.6203 mL 3.1017 mL 6.2035 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (7.75 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (7.75 mM); Clear solution

    This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: 98.63%

COA (246 KB) HNMR (257 KB) LCMS (94 KB)

Handling Instructions (2659 KB)
References
Cell Assay
[1]

Human gastric cancer BGC-823 cells and human colon cancer SW620 cells are treated with cytosporone B for 72 h at 0-15 μg/mL. Cell viability is measured using the MTT assay[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[1]

Mice: The inoculated mice are randomly separated into two groups. One group is given an injection to the abdominal cavity at a dosage of 13 mg/kg of cytosporone B twice a week. The other group is administered with DMSO without cytosporone B. Food consumption and body weight of nude mice are monitored weekly. Four weeks later, the nude mice are killed and the tumors formed are removed, fixed and embedded[1].

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

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
Ethanol / DMSO 1 mM 3.1017 mL 15.5087 mL 31.0174 mL 77.5434 mL
5 mM 0.6203 mL 3.1017 mL 6.2035 mL 15.5087 mL
10 mM 0.3102 mL 1.5509 mL 3.1017 mL 7.7543 mL
15 mM 0.2068 mL 1.0339 mL 2.0678 mL 5.1696 mL
20 mM 0.1551 mL 0.7754 mL 1.5509 mL 3.8772 mL
25 mM 0.1241 mL 0.6203 mL 1.2407 mL 3.1017 mL
30 mM 0.1034 mL 0.5170 mL 1.0339 mL 2.5848 mL
40 mM 0.0775 mL 0.3877 mL 0.7754 mL 1.9386 mL
50 mM 0.0620 mL 0.3102 mL 0.6203 mL 1.5509 mL
60 mM 0.0517 mL 0.2585 mL 0.5170 mL 1.2924 mL
80 mM 0.0388 mL 0.1939 mL 0.3877 mL 0.9693 mL
100 mM 0.0310 mL 0.1551 mL 0.3102 mL 0.7754 mL
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Cytosporone B Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Cytosporone B321661-62-5Csn-B Dothiorelone GNuclear Hormone Receptor 4A/NR4ANerve Growth Factor IB-like ReceptorInhibitorinhibitorinhibit

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