| Bioactivity | Suplatast Tosilate (IPD 1151T) is an orally active Th2 cytokine inhibitor which can inhibit both IL-4 and IL-5 production from Th2 cells and suppress IgE synthesis. Suplatast Tosilate is an anti-allergic agent. Suplatast Tosilate has antiasthmatic, anti-inflammatory and antifibrotic activity[1][2][3][4]. |
| Invitro | IPD-1151T (1-10 μM; 10 d) induces a concentration-dependent suppression of purified allergen (Cry j 1)-dependent IgE synthesis in autologous B cell cultures mediated by SN-4, without significantly affecting the IgG synthesis[1].IPD-1151T (1-10 μM; 24 h) clearly depresses phytohemagglutinin (PHA)-induced expression of IL-4 mRNA in normal peripheral blood mononuclear cells (PBMC)[1]. |
| In Vivo | Suplatast Tosilate (100 mg/kg; once daily for 21 d) inhibits the production of Th2 cytokines, which inhibits eosinophil infiltration into the murine airway, IgE synthesis, and development of BHR, in a murine model of asthma[2].Suplatast Tosilate (100 μg/kg; once daily for 14 d) strongly suppresses immunoglobulin E contents in serum[3]. Animal Model: |
| Name | Suplatast (Tosilate) |
| CAS | 94055-76-2 |
| Formula | C23H33NO7S2 |
| Molar Mass | 499.64 |
| Appearance | Solid |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | 4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
| Reference | [1]. Yanagihara Y, et, al. Suppression of IgE production by IPD-1151T (suplatast tosilate), a new dimethylsulfonium agent: (2). Regulation of human IgE response. Jpn J Pharmacol. 1993 Jan;61(1):31-9. [2]. Zhao GD, et, al. Effect of suplatast tosilate (IPD-1151T) on a mouse model of asthma: inhibition of eosinophilic inflammation and bronchial hyperresponsiveness. Int Arch Allergy Immunol. 2000 Feb;121(2):116-22. [3]. Kurokawa M, et, al. Suppressive effects of anti-allergic agent suplatast tosilate (IPD-1151T) on the expression of co-stimulatory molecules on mouse splenocytes in vivo. Mediators Inflamm. 2001 Dec;10(6):333-7. [4]. Furonaka M, Hattori N, Tanimoto T, Senoo T, Ishikawa N, Fujitaka K, Haruta Y, Yokoyama A, Kohno N. Suplatast tosilate prevents bleomycin-induced pulmonary fibrosis in mice. J Pharmacol Exp Ther. 2009 Jan;328(1):55-61. |
Suplatast (Tosilate)
CAS: 94055-76-2 F: C23H33NO7S2 W: 499.64
Suplatast Tosilate (IPD 1151T) is an orally active Th2 cytokine inhibitor which can inhibit both IL-4 and IL-5 productio
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