Tasisulam sodium is The sodium salt of an acyl-sulfonamide with potential antineoplastic activity.Tasisulam inhibits growth of various human leukemia and lymphoma cell lines with ED50 ranging from 7 to 40 μM. LY573636 also induces apoptosis in HL60, Reh, and MD901 cells, mainly by loss of mitochondrial membrane potential and induction of reactive oxygen species. In addition, Tasisulam also produce antiproliferative activities in more than 70% of the 120 cell lines tested with EC50 of less than 50 μM. Tasisulam induces G2–M accumulation and subsequent apoptosis in Calu-6 and A-375 cells.
How to use:
In vitro: Tasisulam also inhibits VEGF-, FGF- and EGF-induced endothelial cord Formation with EC50 of 47, 103, and 34 nM, respectively. Tasisulam induces morphologic features of vascular normalization, including increased pericyte coverage and decreased hypoxia
In vivo: Tasisulam (25 or 50 mg/kg, i.v.) displays dose-dependent antitumor activity, induces apoptosis, and normalizes tumor-associated vasculature in the Calu-6 non–small cell lung xenograft model. Besides, Tasisulam displays potent antitumor activity across a range of in vivo xenografts, including colorectal (HCT-116), melanoma (A-375), gastric (NUGC-3), leukemia (MV-4-11), and pancreatic (QGP-1).
1: Jotte RM, Von Hoff DD, Braiteh F, Becerra CR, Richards DA, Smith DA, Garbo L, Stephenson J, Conkling PR, Robert-Vizcarrondo F, Chen J, Turner PK, Chow KH, Tai DF, Ilaria R Jr. An innovative, multi-arm, complete phase 1b study of the novel anti-cancer agent tasisulam in patients with advanced solid tumors. Invest New Drugs. 2014 Sep 28. [Epub ahead of print] PubMed PMID: 25260842.
2: Hamid O, Ilaria R Jr, Garbe C, Wolter P, Maio M, Hutson TE, Arance A, Lorigan P, Lee J, Hauschild A, Mohr P, Hahka-Kemppinen M, Kaiser C, Turner PK, Conti I, Grob JJ. A randomized, open-label clinical trial of tasisulam sodium versus paclitaxel as second-line treatment in patients with metastatic melanoma. Cancer. 2014 Jul 1;120(13):2016-24. doi: 10.1002/cncr.28635. Epub 2014 Mar 26. PubMed PMID: 24676877.
3: Fujiwara Y, Ando Y, Mukohara T, Kiyota N, Chayahara N, Mitsuma A, Inada-Inoue M, Sawaki M, Ilaria R Jr, Kellie Turner P, Funai J, Maeda K, Minami H. A phase I study of tasisulam sodium using an albumin-tailored dose in Japanese patients with advanced solid tumors. Cancer Chemother Pharmacol. 2013 Apr;71(4):991-8. doi: 10.1007/s00280-013-2092-2. Epub 2013 Feb 1. PubMed PMID: 23370664.
4: Gordon MS, Ilaria R Jr, de Alwis DP, Mendelson DS, McKane S, Wagner MM, Look KY, LoRusso PM. A phase I study of tasisulam sodium (LY573636 sodium), a novel anticancer compound, administered as a 24-h continuous infusion in patients with advanced solid tumors. Cancer Chemother Pharmacol. 2013 Jan;71(1):21-7. doi: 10.1007/s00280-012-1917-8. Epub 2012 Dec 11. PubMed PMID: 23228983.
5: Schindler K, Schicher N, Kunstfeld R, Pehamberger H, Toepker M, Haitel A, Hoeller C, Harmankaya K. A rare case of primary rhabdoid melanoma of the urinary bladder treated with ipilimumab, an anti-CTLA 4 monoclonal antibody. Melanoma Res. 2012 Aug;22(4):320-5. doi: 10.1097/CMR.0b013e32835566c0. PubMed PMID: 22713795.