Oenothein B

Oenothein B is a dimeric macrocyclic ellagitannin and has widely pharmacological activities, including antioxidant, anti-inflammatory, antifungal, anti-HCV, and antitumor properties. Oenothein B is a potent and specific inhibitor of poly(ADP-ribose) glycohydrolase.

Oenothein B (15-45 µM; 12-72 hours) has a dose- and time-dependent inhibition rate effect on A549 cells in the range of 12 hours, 24 hours, 36 hours, 48 hours, 60 hours and 72 hours of exposure^[1].
Oenothein B (15-45 µM; 24 hours) effectively inhibits the proliferation of A549 cells by inducing apoptosis and arresting cells at G1 stage^[1].
Oenothein B (15-45 µM; 24 hours) not only increases the level of intracellular reactive oxygen species (ROS), but also induces the upregulation of intracellular apoptotic triggers (cleavage caspase-3, PARP, cytochrome c level in the cytosol, Bax)^[1].
A549 cells^[1]15 µM, 30 µM and 45 µM24 hoursArrested cells in the G1 phase.A549 cells^[1]15 µM, 30 µM and 45 µM24 hoursBAX, p53, cytochrome c (cytoplasm) and PARP were unregulated significantly; Anti-apoptotic Bcl-2 was decreased significantly in a concentration-dependent manner.

Oenothein B (100-300 mg/kg; p.o.) has the ability to reduce neuroinflammation in the brain during systemic inflammation in ICR mice^[3].