| Bioactivity | Tranilast (MK-341) acts as an anti-atopic agent. Tranilast suppresses production of prostaglandin D2 (PGD2, IC50= 0.1 mM). Tranilast sodium exhibits anti-inflammatory and immunomodulatory effects[1]. Tranilast sodium antagonizes angiotensin II and inhibits its biological effects in vascular smooth muscle cells[2]. | ||||||||||||
| Invitro | Tranilast exhibits significant immunomodulatory activity inhibiting Endotoxin-induced prostaglandin E2 (PGE2; IC50=~1-20 μM), thromboxane B2 (IC50=~10-50 μM), (TGF-β1; IC50=~100-200 μM), and IL-8 (IC50=~100 μM) formation. A23187-induced monocyte leukotriene C4 or PGE2 formation is inhibited by Tranilast at IC50s of 10-40 μM and 2-20 μM, respectively[3].Tranilast (10-200 μM) exhibits the anti-proliferative effect in a dose-dependent manner in both MCF-7 and MDA-MB-231 cell lines. Tranilast also (10-200μM) enhances the anti-tumor effects of Tamoxifen (1-20 μM) on human breast cancer cells in vitro[4].Tranilast (12.5, 25, 50, 100 μg/mL; 72 hours) inhibits proliferation of HDMECs[5]. Cell Proliferation Assay[4] Cell Line: | ||||||||||||
| In Vivo | Tranilast (300 mg/kg; administered orally twice a day for 3 days) dose-dependently suppresses angiogenesis in mice[5]. Animal Model: | ||||||||||||
| Name | Tranilast | ||||||||||||
| CAS | 53902-12-8 | ||||||||||||
| Formula | C18H17NO5 | ||||||||||||
| Molar Mass | 327.33 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
| Storage |
|
||||||||||||
| Reference | [1]. K Ikai , et al. Inhibitory Effect of Tranilast on Prostaglandin D Synthetase. Biochem Pharmacol. 1989 Aug 15;38(16):2673-6. [2]. K Miyazawa , et al. Tranilast Antagonizes Angiotensin II and Inhibits Its Biological Effects in Vascular Smooth Muscle Cells. Atherosclerosis. 1996 Apr 5;121(2):167-73. [3]. E A Capper, et al. Modulation of Human Monocyte Activities by Tranilast, SB 252218, a Compound Demonstrating Efficacy in Restenosis. J Pharmacol Exp Ther. 2000 Dec;295(3):1061-9. [4]. Sara Darakhshan, et al. Tranilast Enhances the Anti-Tumor Effects of Tamoxifen on Human Breast Cancer Cells in Vitro. J Biomed Sci. 2013 Oct 21;20(1):76. [5]. M Isaji , et al. Tranilast Inhibits the Proliferation, Chemotaxis and Tube Formation of Human Microvascular Endothelial Cells in Vitro and Angiogenesis in Vivo. Br J Pharmacol. 1997 Nov;122(6):1061-6. |