Chrysophanic Acid Induces Necrosis but not Necroptosis in Human Renal Cell Carcinoma Caki-2 Cells
Journal of Cancer Prevention
; : 81-87, 2016.
Artigo
em Inglês
| WPRIM (Pacífico Ocidental)
| ID: wpr-182461
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND:
Chrysophanic acid, also known as chrysophanol, has a number of biological activities. It enhances memory and learning abilities, raises superoxide dismutase activity, and has anti-cancer effects in several model systems. According to previous reports, chrysophanic acid-induced cell death shares features of necrotic cell death. However, the molecular and cellular processes underlying chrysophanic acid-induced cell death remain poorly understood.METHODS:
Chrysophanic acid-induced cell death was monitored by cell viability assay and Annexin V-propidium iodide (PI) staining of renal cell carcinoma Caki-2 cells. The induction of intracellular reactive oxygen species (ROS) by chrysophanic acid and the suppression of ROS by anti-oxidants were evaluated by 2',7'-dichlorofluorescin diacetate staining. The expression and phosphorylation of proteins that are involved in apoptosis and necroptosis were detected by immunoblotting.RESULTS:
The extent of chrysophanic acid-induced cell death was concentration and time dependent, and dead cells mainly appeared in the PI-positive population, which is a major feature of necrosis, upon fluorescence-activated cell sorting analysis. Chrysophanic acid-induced cell death was associated with the generation of intracellular ROS, and this effect was reversed by pretreatment with N-acetyl cysteine. Chrysophanic acid-induced cell death was not associated with changes in apoptotic or necroptotic marker proteins.CONCLUSIONS:
The cell death induced by chrysophanic acid resembled neither apoptotic nor necroptotic cell death in human renal cell carcinoma Caki-2 cells.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Fosforilação
/
Superóxido Dismutase
/
Carcinoma de Células Renais
/
Immunoblotting
/
Sobrevivência Celular
/
Morte Celular
/
Espécies Reativas de Oxigênio
/
Apoptose
/
Cisteína
/
Citometria de Fluxo
Limite:
Humanos
Idioma:
Inglês
Revista:
Journal of Cancer Prevention
Ano de publicação:
2016
Tipo de documento:
Artigo