HUMAN ASTROCYTES AND CYTOKINES - TUMOR-NECROSIS-FACTOR-ALPHA AND INTERFERON-GAMMA DO NOT PROMOTE ASTROCYTIC PROLIFERATION

被引:15
作者
MORETTO, G [1 ]
YOO, A [1 ]
KIM, SU [1 ]
机构
[1] UNIV BRITISH COLUMBIA, DEPT MED, DIV NEUROL, VANCOUVER V6T 1W5, BC, CANADA
关键词
ASTROCYTE; BROMODEOXYURIDINE; CYTOKINE; HUMAN; INTERFERON-GAMMA; TUMOR NECROSIS FACTOR-ALPHA;
D O I
10.1016/0304-3940(93)90034-I
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Astrocyte cell cultures were established from human fetal brains and exposed to human recombinant tumor necrosis factor alpha (TNFalpha) and human recombinant interferon gamma (IFNgamma), and the proliferative response was assessed by bromodeoxyuridine-immunostaining technique. TNFalpha showed an inhibitory activity, while IFNgamma induced a slight increase in the number of astrocytes undergoing cell division. However, in both experiments differences were not statistically significant. Previous studies have demonstrated that TNFalpha and IFNgamma are potent mitogens for adult astrocytes in both in vivo and in vitro conditions. Our results suggest that in developing brain the immunomodulatory activity of cytokines, TNFalpha and IFNgamma, is different from that observed in adult brain.
引用
收藏
页码:17 / 20
页数:4
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