Effects of B7-H1 molecule blockade on tumor-infiltrating dendritic cell-mediated T-cell function / 中国肿瘤生物治疗杂志
Chinese Journal of Cancer Biotherapy
;
(6)1994.
Article
in Chinese
| WPRIM
| ID: wpr-593893
ABSTRACT
Objective:
To explore the expression of B7-1,B7-2 and B7-H1 on tumor-infiltrating dendritic cells(TIDC) and on splenic dendritic cells(SDC),and to investigate TIDC-mediated and SDC-mediated T-cell function after blocking B7-H1 expression in these dendritic cells.Methods:
The TIDCs and SDCs were isolated from tumor-bearing mice using anti-mouse CD11c magnetic beads.The expression of B7-1,B7-2 and B7-H1 on TIDC and SDC was analyzed using flow cytometer.T cells were co-cultured with TIDCs or SDCs for the mixed lymphocyte reaction(MLR),and monoclonal antibodies to B7-H1 or the isotype control antibodies were added to the MLR cultures.T-cell proliferation was assessed using XTT method and the secretion of IL-10 was detected using ELISA.Results:
B7-1 and B7-2 positive TIDCs were significantly less than SDCs(P0.05).T-cell proliferation stimulated by TIDCs was weaker than that stimulated by SDCs;T cells produced more IL-10 after TIDCs stimulation than after SDCs stimulation(P
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Cancer Biotherapy
Year:
1994
Type:
Article
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