2. Metabolic Enzyme/Protease Vitamin D Related/Nuclear Receptor
  3. ROR
  4. SR1555

SR1555 is a specific retinoic acid receptor-related orphan nuclear receptor γ (RORγ) inverse agonist with an IC50 value of 1 μM. SR1555 not only inhibits TH17 cell development and function but also increases the frequency of T regulatory cells, as well as inhibits the expression of IL-17. SR1555 can be used for researching autoimmune diseases.

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SR1555 Chemical Structure

SR1555 Chemical Structure

CAS No. : 1386439-51-5

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Based on 1 publication(s) in Google Scholar

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SR1555 Related Antibodies

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Description

SR1555 is a specific retinoic acid receptor-related orphan nuclear receptor γ (RORγ) inverse agonist with an IC50 value of 1 μM. SR1555 not only inhibits TH17 cell development and function but also increases the frequency of T regulatory cells, as well as inhibits the expression of IL-17. SR1555 can be used for researching autoimmune diseases[1].

IC50 & Target[1]

RORγ

1 μM (IC50)

In Vitro

SR1555 (10 μM; 24 h) inhibits Il17a gene expression by greater than 70%in EL4 cells[1].
SR1555 (10 μM; 24 h) inhibits IL-17 protein expression, inhibits TH17 cell differentiation and function, and does not induce cell death during TH17 cell differentiation[1].
SR1555 (10 μM; 24 h) effectively increases the gene expression of Foxp3 while simultaneously suppressing the gene expression of Rorγt[1].
SR1555 increases the frequency of T regulatory cells as evidenced by the almost 2-fold increase in the expression of Foxp3+ T cells in the splenocyte culture[1].

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

SR1555 Related Antibodies

RT-PCR[1]

Cell Line: EL4 cells
Concentration: 10 μM
Incubation Time: 24 h
Result: Inhibited Il17a gene expression by greater than 70%.

Cell Differentiation Assay[1]

Cell Line: Splenocytes (cultured under TH17 polarizing conditions for 3 days)
Concentration: 10 μM
Incubation Time: 24 h
Result: Inhibited IL-17 protein expression, inhibited TH17 cell differentiation and function, and did not induce cell death during TH17 cell differentiation.

RT-PCR[1]

Cell Line: Splenocytes (cultured under T regulatory cell polarizing conditions for 3 days)
Concentration: 10 μM
Incubation Time: 24 h
Result: Effectively increased the gene expression of Foxp3 while simultaneously suppressing the gene expression of Rorγt.
Molecular Weight

460.41

Formula

C22H22F6N2O2
CAS No.
Appearance

Solid

Color

White to light yellow

SMILES

CC(N1CCN(CC2=CC=C(C3=CC=C(C(C(F)(F)F)(O)C(F)(F)F)C=C3)C=C2)CC1)=O
Shipping

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

DMSO : 100 mg/mL (217.20 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.1720 mL 10.8599 mL 21.7198 mL
5 mM 0.4344 mL 2.1720 mL 4.3440 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
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Concentration
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Volume
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Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

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Concentration (final)

C2

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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 (5.43 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 (5.43 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
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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.1720 mL 10.8599 mL 21.7198 mL 54.2994 mL
5 mM 0.4344 mL 2.1720 mL 4.3440 mL 10.8599 mL
10 mM 0.2172 mL 1.0860 mL 2.1720 mL 5.4299 mL
15 mM 0.1448 mL 0.7240 mL 1.4480 mL 3.6200 mL
20 mM 0.1086 mL 0.5430 mL 1.0860 mL 2.7150 mL
25 mM 0.0869 mL 0.4344 mL 0.8688 mL 2.1720 mL
30 mM 0.0724 mL 0.3620 mL 0.7240 mL 1.8100 mL
40 mM 0.0543 mL 0.2715 mL 0.5430 mL 1.3575 mL
50 mM 0.0434 mL 0.2172 mL 0.4344 mL 1.0860 mL
60 mM 0.0362 mL 0.1810 mL 0.3620 mL 0.9050 mL
80 mM 0.0271 mL 0.1357 mL 0.2715 mL 0.6787 mL
100 mM 0.0217 mL 0.1086 mL 0.2172 mL 0.5430 mL
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SR1555 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:

SR15551386439-51-5SR 1555SR-1555RORRAR-related orphan receptorRORγTH17 cellsT regulatory cellsIL-17EL4 cellssplenocytesautoimmune diseasesInhibitorinhibitorinhibit

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