ferroptosis inhibition

TOFA-Plasmalogen (compound 1), a derivative of glyceraldehyde, exhibits ferroptosis-inducing properties. This compound promotes lipid peroxidation in cell membranes, leading to cytotoxic effects with an inhibition concentration (IC 50 = 32.87 μM).

Pantothenate Kinase Inhibitor (PANKi) is a reversible inhibitor of pantothenate kinase (PanK; IC50s = 70, 92, and 25 nM for PanK1β, PanK2, and PanK3, respectively), the rate-limiting enzyme in the synthesis of coenzyme A .1It binds to the ATP-PanK3 complex with an apparent binding constant of 300 nM and exhibits mixed-type inhibition with respect to ATP and pantothenate. PANKi inhibits CoA biosynthesis in C3A cells (IC50= 0.9 μM) with no effect on cell viability when used at concentrations up to 8 μM. PANKi (5 μM) synergizes with BSO to induce ferroptosis in PANC-1 cells and sensitizes the cells to imidazole ketone erastin-induced ferroptosis.2 1.Sharma, L.K., Leonardi, R., Lin, W., et al.A high-throughput screen reveals new small-molecule activators and inhibitors of pantothenate kinasesJ. Med. Chem.58(3)1563-1568(2015) 2.Badgley, M.A., Kremer, D.M., Maurer, H.C., et al.Cysteine depletion induces pancreatic tumor ferroptosis in miceScience368(6486)85-89(2020)

IM-93 inhibits ferroptosis and NETosis with an IC_{50< sub> of 0.45 μM for cell death inhibition [1].}

GPX4-IN-3 (26a) is a potent inhibitor of glutathione peroxidase 4 (GPX4), selectively inducing ferroptosis, with a 71.7% inhibition rate at a concentration of 1 μM [1].