Molecular mechanism of osteoclast differentiation induced by staphylococcal lipoteichoic acid / 实用医学杂志
The Journal of Practical Medicine
;
(24): 3369-3372, 2016.
Artigo
em Chinês
| WPRIM
| ID: wpr-503208
ABSTRACT
Objective To investigate the molecular mechanism of osteoclast differentiation induced by staphylococcal lipoteichoic acid (LTA-sa). Methods Raw264.7 cells were treated with LTA-sa in a concentration of 200 ng/mL for 0, 5, 10, 20, 40, 60 min and 0, 1, 2, 3 days respectively, and the proteins in signaling pathways associated with osteoclast differentiation were measured with western blot. In addition, Raw264.7 cells were treated with different concentrations of LTA-sa (100, 200 and 400 ng/mL) and PBS for 0, 1, 2, 3 days, the expression of TNF-α, IL-1α and IL-6 was detected with Enzyme linked immunosorbent assay (ELISA). Results (1)Western blot showed that, under stimulation of LTA-sa, IκB-α decreased at 5 min and 10 min, while the phosphorylation of nuclear factor κB increased at 10 min . In addition , NFATc1 increased in 2 and 3 days gradually. The above results were statistically analyzed, and the difference was significant in statistics (P < 0.001). (2)ELISA showed that the expression of IL-6 increased in 2 and 3 days along with the increasing concentration and prolonging stimulation time of LTA-sa. Data were statistically analyzed, the difference was significant in statistics (P < 0.001). Conclusion LTA-sa promotes osteoclast differentiation through the NF-κB signaling pathway and the secretion of IL-6.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
The Journal of Practical Medicine
Ano de publicação:
2016
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS