Bioactivity | Piericidin A (AR-054) is a natural mitochondrial NADH-ubiquinone oxidoreductase (complex I) inhibitor. Piericidin A is a potent neurotoxin and inhibits mitochondrial respiration by disrupting the electron transport system through its action on NADH-ubiquinone reductase. Piericidin A is also a potential quorum-sensing inhibitor that suppresses the expression of the virulence genes of Erwinia carotovora subsp. atroseptica (Eca). Piericidin A is an ADC cytotoxin and has anti-bacterial, anticancer, insecticidal activity[1][2][2]. |
Invitro | In a cell free assay, the potency of Piericidin A to inhibit mitochondrial complex I is ∼2 fold smaller than the one of annonacin. In cultured neurons, Piericidin A potently induces the redistribution of phosphorylated tau from the dendrites into the cell soma and induces cell death[1]. The viability of Tn5B1-4 cells is inhibited by Piericidin A in a time- and concentration-dependent manner with IC50 value of 0.061 μM, whilst Piericidin A shows slight inhibitory effect on the viability of HepG2 and Hek293 cells with IC50 value of 233.97 μM and 228.96 μM, respectively. Piericidin A induces apoptosis of Tn5B1-4 cells coincides with a decrease in the mitochondrial membrane potential[3]. |
Name | Piericidin A |
CAS | 2738-64-9 |
Formula | C25H37NO4 |
Molar Mass | 415.57 |
Transport | Room temperature in continental US; may vary elsewhere. |
Storage | Solution, -20°C, 2 years |