SR 1555 is a novel RORγ-specific synthetic ligand . Retinoic acid receptor-related nuclear receptor (ROR) belongs to the nuclear receptor superfamily, a group of structurally related, ligand-dependent transcription factors. RORs function as key regulators of many physiological processes that occur during embryonic development and in the adult . RORγ plays a dominant role in T cell differentiation, particularly in the development of TH17 cells, which are implicated in autoimmune diseases such as multiple sclerosis and rheumatoid arthritis . In vitro: In a GAL4-NR chimeric co-transfection assay, SR1555 was devoid of LXR, FXR, and RORα activity, but it dose-dependently repressed the activity at RORγ with an IC50 of ≈ 1.5 μM. In competitive radioligand binding assays, SR1555 bound to RORγ with an IC50 of 1 μM. SR1555 specifically targeted RORγ and inhibited its transcriptional activity leading to suppression of IL-17 gene expression. EL4 cells treated SR1555 (10 μM) for 24 h inhibited Il17a gene expression by greater than 70%, demonstrating that SR1555 could inhibit the expression of this TH17 mediated cytokine . SR1555 not only inhibited TH17 cell development and function but also increased the frequency of T regulatory cells .

Product information

CAS Number: 1386439-51-5

Molecular Weight: 496.87

Formula: C22H23ClF6N2O2

Chemical Name: 1-(4-{[4'-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)-[1,1'-biphenyl]-4-yl]methyl}piperazin-1-yl)ethan-1-one hydrochloride

Smiles: Cl.CC(=O)N1CCN(CC2C=CC(=CC=2)C2C=CC(=CC=2)C(O)(C(F)(F)F)C(F)(F)F)CC1

InChiKey: OHUOFZJUUXXRGG-UHFFFAOYSA-N

InChi: InChI=1S/C22H22F6N2O2.ClH/c1-15(31)30-12-10-29(11-13-30)14-16-2-4-17(5-3-16)18-6-8-19(9-7-18)20(32,21(23,24)25)22(26,27)28;/h2-9,32H,10-14H2,1H3;1H

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

Products are for research use only. Not for human use.