Effect of Ascorbic Acid Against the Oxidative Stress-Induced Cellular Senescence in Trabecular Meshwork Cells
Journal of the Korean Ophthalmological Society
;
: 490-495, 2013.
Artigo
em Coreano
| WPRIM
| ID: wpr-181313
ABSTRACT
PURPOSE:
To investigate the effect of L-ascorbic acid (LAA) on oxidative-stress-induced cellular senescence in trabecular meshwork (TM) cells.METHODS:
Primarily cultured human TM cells were exposed to 0, 10, or 100 microM hydrogen peroxide for 7 days with or without co-exposure of LAA. Cellular survival and nitrite production were assessed with MTT and Griess assays, respectively. SA-beta-gal staining was performed to quantify cellular senescence.RESULTS:
Hydrogen peroxide decreased cellular survival, accompanied by decreased nitric oxide (NO) production. These decreases of cellular survival and NO production were abolished by co-exposure of 100 microM LAA. Analysis of SA-beta-gal staining revealed that LAA inhibited hydrogen peroxide-induced cellular senescence by 6.8% (p < 0.05).CONCLUSIONS:
LAA may have a protective effect against the oxidative-stress-induced cellular senescence in TM cells.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Ácido Ascórbico
/
Malha Trabecular
/
Envelhecimento
/
Senescência Celular
/
Estresse Oxidativo
/
Hidrogênio
/
Peróxido de Hidrogênio
/
Óxido Nítrico
Limite:
Humanos
Idioma:
Coreano
Revista:
Journal of the Korean Ophthalmological Society
Ano de publicação:
2013
Tipo de documento:
Artigo
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