sr 1903

SR 1903是一种RORγ、PPARγ 反向激动剂（对 RORγ、PPARγ 的 IC50 分别为 100 nM、209 nM），同时也是LXR 激动剂（EC50 为 154 nM）。在胶原诱导性关节炎及饮食诱导性肥胖小鼠模型中，SR-1903 可发挥抗炎、抗糖尿病作用 。

Clonazoline HCl is the salt form of Clonazoline, a coronary vasodilator that is an imidazoline sympathomimetic, an alpha-adrenoreceptor agonist. It was used as a nasal decongestant and vasoconstrictor.

SR-1903 is a modulator of retinoic acid receptor-related orphan receptor γ (RORγ) and liver X receptor (LXR). It is an inverse agonist of RORγ and an agonist of LXR. It also binds to peroxisome proliferator-activated receptor γ (PPAR) but does not activate it. SR-1903 inhibits LPS-induced expression of triggering receptor expressed on myeloid cells 1 (TREM-1). It also inhibits LPS-induced expression of the LXR target genes IL-6 and IL-33 and increases expression of ABCG1, FASN, and SCD-1. SR-1903 reduces the severity of collagen-induced arthritis. It reduces blood glucose levels in a glucose tolerance test, serum levels of total cholesterol and LDL, body weight, and fat mass in a mouse model of high-fat diet-induced obesity.