Regulatory effect of TNF-? on the expression of PAI-2 in epidermal keratinocytes / 第三军医大学学报
Journal of Third Military Medical University
;
(24)2002.
Artigo
em Chinês
| WPRIM
| ID: wpr-678381
ABSTRACT
Objective To investigate the regulatory effect of TNF ? on the expression of plasminogen activator inhibitor 2(PAI 2) and its biological significance. Methods Using immunocytochemistry(ICC), terminal deoxynucleotidyl transferase mediated end labeling (TUNEL) and ICC/TUNEL double label methods, the expression of PAI 2 in and the apoptosis of the cultured epidermal keratinocytes treated by TNF ? were detected. Results After the mouse epidermal keratinocytes were incubated with TNF ?, compared with the unshed cells, the expression of PAI 2 in shed cells and the cellular apoptosis increased obviously. The increased PAI 2 expression also appeared in the apoptotic cells, especially in larger and multi angled apoptotic cells. Conclusion In highly differentiated epidermal keratinocytes, TNF ? can enhance the expression of PAI 2 as well as apoptosis. Furthermore, according to the relation with the keratinocytes apoptosis, there are two types of PAI 2 induced by TNF ?, one of which is related to apoptosis, but the other is not.
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Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Journal of Third Military Medical University
Ano de publicação:
2002
Tipo de documento:
Artigo
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