Identification of baicalein as a ferroptosis inhibitor by natural product library screening.
Biochem Biophys Res Commun
; 473(4): 775-780, 2016 05 13.
Article
en En
| MEDLINE
| ID: mdl-27037021
ABSTRACT
Ferroptosis, a novel form of regulated cell death, is characterized by oxidative injury from iron accumulation and lipid peroxidation. In a natural product library screening for ferroptosis inhibitor, we found that baicalein is a potent inhibitor of erastin-induced ferroptosis in pancreatic cancer cells. Baicalein (also termed 5,6,7-trihydroxyflavone) is a flavonoid originally obtained from the roots of Scutellaria baicalensis and Scutellaria lateriflora. We showed that baicalein exhibits remarkable anti-ferroptosis activity compared with well-known ferroptosis inhibitors such as ferrostatin-1, liproxstatin-1, deferoxamine mesylate, and ß-mercaptoethanol. At the biochemistry level, baicalein limits erastin-induced ferrous iron production, glutathione depletion, and lipid peroxidation. At the protein level, baicalein suppresses erastin-mediated degradation of glutathione peroxidase 4, a phospholipid hydroperoxidase that protects cells against membrane lipid peroxidation. Thus, baicalein enhances cellular anti-ferroptosis capacity and could be a potential therapeutic agent for ferroptosis-associated tissue injury.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias Pancreáticas
/
Flavonoides
/
Muerte Celular
/
Apoptosis
/
Hierro
Tipo de estudio:
Diagnostic_studies
/
Screening_studies
Límite:
Humans
Idioma:
En
Revista:
Biochem Biophys Res Commun
Año:
2016
Tipo del documento:
Article
País de afiliación:
China