Effect of monocyte/macrophages activated by CpG-oligodeoxynucleotides of bacteria on K562 cells / 中国病理生理杂志
Chinese Journal of Pathophysiology
;
(12)1989.
Artigo
em Chinês
| WPRIM
| ID: wpr-529132
ABSTRACT
AIM:
To study the effect of monocyte/macrophages treated with CpG-oligodeoxynucleotides on leukemic K562 cells.METHODS:
The monocytes/macrophages from peripheral blood cells were isolated and induced. The expressions of CD14 and CD16 on monocytes/macrophages were detected by means of flow cytometry. After treated with synthetic CpG-oligodeoxynucleotides, and nonCpG-oligodeoxynucleotides for 24 hours respectively, the inhibiting effect of monocyte/macrophages on K562 cells were detected using MTT method. The secretions of TNF-? and IL-12 from monocytes/macrophages were determined using ELISA method.RESULTS:
The monocytes/macrophages treated with CpG-oligodeoxynucleotides enhanced their antitumor effect on K562 cells and increased the secretion levels of TNF-? and IL-12. Whereas, there was no significant difference between antitumor effect and cytokine secretion of the monocytes/macrophages treated with nonCpG-oligodeoxynucleotide.CONCLUSION:
CpG-oligodeoxynucleotides increases the cytotoxicity of macrophages on K562 cells in vitro, as well as facilitates the IL-12 and TNF-? secretion. It provides a new approach for immunologic treatment of leukemia.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Pathophysiology
Ano de publicação:
1989
Tipo de documento:
Artigo
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