TrxR1 Inhibitor

Aurothiomalate tetramer sodium is the tetrameric form of Aurothiomalate sodium (HY-106381). Aurothiomalate sodium acts as an inhibitor of PKCI and TrxR1. Aurothiomalate sodium disrupts the PKCI-Par6-Rac1 signaling pathway, and also inhibits TrxR1 activity, TNFα-induced NF-κB activation, and the expression of pro-inflammatory genes. Aurothiomalate sodium blocks Kras-mediated BASC expansion and lung tumor growth, inhibits anchorage-independent growth and tumorigenicity of lung cancer cells, and suppresses neutrophil chemotaxis, phagocytosis, and leukocyte extravasation. Aurothiomalate sodium can be used in research related to rheumatoid arthritis and non-small cell lung cancer.

PMX464 (AW 464) is a thiol-reactive quinol compound and an inhibitor of the thioredoxin-thioredoxin reductase (Trx/TrxR) system, with an IC₅₀ value of 6.5 μM against TrxR. PMX464 acts by irreversibly inhibiting the thioredoxin (Trx-1) system, blocking HIF-1α transcriptional activation and the NF-κB inflammatory pathway, inducing apoptosis, attenuating platelet function and inhibiting thrombosis, and specifically disrupting the trypanothione antioxidant metabolic network in parasites. PMX464 is used in research concerning malignant tumors (colorectal cancer, breast cancer, renal cancer, and leukemia), pulmonary inflammation, African sleeping sickness, and antithrombotic applications.

TrxR1 prodrug-1 (compound 5u) is a potent inhibitor of TrxR1. TrxR1 prodrug-1 exhibits significant antitumor efficiency in nude mice and NSCLC organoids.

TrxR1-IN-3 is a selective TrxR1 inhibitor with an IC₅₀ of 1.19 μM. TrxR1-IN-3 increases intracellular reactive oxygen species (ROS) levels, induces endoplasmic reticulum (ER) stress, and activates Caspase-dependent Apoptosis. TrxR1-IN-3 exhibits anticancer activity against multiple breast cancer subtypes, including triple-negative breast cancer (TNBC). TrxR1-IN-3 can be used in breast cancer-related research.

Platinum (IV) Prodrug-1 is a Pt (IV) prodrug and selective TrxR1 inhibitor. Platinum (IV) Prodrug-1 induces ferroptosis (Ferroptosis) by depleting glutathione, accumulating intracellular lipid peroxides, and inactivating Glutathione peroxidase 4. Platinum (IV) Prodrug-1 triggers endoplasmic reticulum stress and immunogenic cell death via excessive accumulation of intracellular ROS. Platinum (IV) Prodrug-1 exhibits anticancer activity against both Cisplatin (HY-17394)-sensitive and Cisplatin-resistant triple-negative breast cancer cells. Platinum (IV) Prodrug-1 can be used for the research of triple-negative breast cancer.