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.
靶点:
RORγ:1 μM (IC50)
体内研究:
SR1555 (10 μM; 24 h) inhibits Il17a gene expression by greater than 70%in EL4 cells. 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. SR1555 (10 μM; 24 h) effectively increases the gene expression of Foxp3 while simultaneously suppressing the gene expression of Rorγt. 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.