IV-2 MedChemExpress (MCE)

Product Name	PX-12
Synonyms	PX-12;PX 12;IV-2);CS-2384;PX-12 (PX12;2-(sec-Butyldisulfanyl)-1H-iMidazole;2-[(1-Methylpropyl)dithio]-1H-imidazole;1H-Imidazole, 2-[(1-methylpropyl)dithio]-
CAS	141400-58-0
EINECS
Chemical Formula	C7H12N2S2
Molecular Weight	188.31
inchi
Package	10 mM * 1 mL;1 mg;5 mg;10 mg;50 mg;100 mg
Price	Email to quote
Descriptions	PX-12 PX-12 MedChemExpress (MCE) HY-13734 141400-58-0 IV-2 99.87% Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year Room temperature in continental US Descriptions PX-12 PX-12 MedChemExpress (MCE) HY-13734 141400-58-0 IV-2 99.87% Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year Room temperature in continental US may vary elsewhere. PX-12(IV-2) is an irreversible inhibitor of Thioredoxin-1 (Trx-1) inhibits the growth of MCF-7 and HT-29 cells with IC50 values of 1.9 and 2.9 μM, respectively. PX-12 inhibits the growth of MCF-7 and HT-29 cells with IC50 values of 1.9 and 2.9 μM, respectively[1]. PX-12 particularly reduces the activity of Trx-1 by means of thio-alkylating critical cysteine residue (Cys73) which is located in the outside the conserved redox catalytic site of Trx-1. PX-12 affects the oxidation state of thiols in a number of cell surface proteins. Key surface receptors for platelet adhesion and activation are affected, including the collagen receptor GPVI and the von Willebrand factor receptor, GPIb. PX-12 inhibits thrombus formation over Type I collagen in whole blood under flow conditions[2]. Thioredoxin-1 (Trx-1) is a cellular redox protein that promotes tumor growth, inhibits apoptosis, and up-regulates hypoxia-inducible factor-1α and vascular endothelial growth factor[3]. PX-12 inhibits the growth of colorectal cancer DLD-1 and SW620 cells in a dose- and time-dependent manner. PX-12 reduces cell colony formation and induced a G2/M phase arrest of the cell cycle. PX-12 treatment induces apoptosis. PX-12 inhibits colorectal cancer cell migration and invasion. Treatment of cancer cells with PX-12 reduces NOX1, CDH17 and S100A4 mRNA expression, and increases KLF17 mRNA expression. PX-12 decreases S100A4 protein expression in the colorectal cancer cells[4]. PX-12 has been shown to have in vivo antitumor activity against human tumor xenografts including HT-29 colon cancer in SCID mice and has been tested in a phase I clinical trial in patients[3]. IC50: 1.9 (MCF-7), 2.9 μM (HT-29 cells)[1] Cellular Effect Cell Line Type Value Description References \| \| \| \| \| \| \| \| \| \| [1]. Welsh SJ, et al. The thioredoxin redox inhibitors 1-methylpropyl 2-imidazolyl disulfide and pleurotin inhibit hypoxia-induced factor 1alpha and vascular endothelial growth factor formation. Mol Cancer Ther. 2003 Mar 2(3):235-43. [Content Brief] [2]. Lou M, et al. Physical interaction between human ribonucleotide reductase large subunit and thioredoxin increases colorectal cancer malignancy. J Biol Chem. 2017 Jun 2 292(22):9136-9149. [Content Brief] [3]. Metcalfe C, et al. Thioredoxin Inhibitors Attenuate Platelet Function and Thrombus Formation.PLoS One. 2016 Oct 7 11(10):e0163006 [Content Brief] [4]. Ramanathan RK, et al. A Phase I pharmacokinetic and pharmacodynamic study of PX-12, a novel inhibitor of thioredoxin-1, in patients with advanced solid tumors. Clin Cancer Res. 2007 Apr 1 13(7):2109-14. [Content Brief] [5]. Wang F, et al. Thioredoxin-1 inhibitor, 1-methylpropyl 2-imidazolyl disulfide, inhibits the growth, migration and invasion of colorectal cancer cell lines. Oncol Rep. 2015 Feb 33(2):967-73. [Content Brief]
Last Update	2025-04-01 14:45:47

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