Background:

SR-31747 is a new sigma ligand with immunosuppressive properties.

SR-31747 is capable of inhibiting T-cell proliferation when added as late as 24 h after activation. SR-31747 arrests proliferation in yeast cells in a dose-dependent manner[2].

SR 31747 dramatically blocks lipopolysaccharide-induced production of interleukin (IL)-1, IL-6 and tumor necrosis factor-alpha in a dose-dependent manner (ED50 2 mg/kg)[1].

[1]. Derocq JM, et al. In vivo inhibition of endotoxin-induced pro-inflammatory cytokines production by the sigma ligand SR 31747. J Pharmacol Exp Ther. 1995 Jan;272(1):224-30. [2]. Silve S, et al. The immunosuppressant SR 31747 blocks cell proliferation by inhibiting a steroid isomerase in Saccharomyces cerevisiae. Mol Cell Biol. 1996 Jun;16(6):2719-27.