RANTES promotes growth and survival of human first-trimester forebrain astrocytes

被引:68
作者
Bakhiet, M [1 ]
Tjernlund, A
Mousa, A
Gad, A
Strömblad, S
Kuziel, WA
Seiger, A
Andersson, J
机构
[1] Huddinge Univ Hosp, Karolinska Inst, Dept Med, Ctr Infect Med, SE-14186 Stockholm, Sweden
[2] Huddinge Univ Hosp, Karolinska Inst, Dept Clin Neurosci, Div Geriatr Med, SE-14186 Stockholm, Sweden
[3] Huddinge Univ Hosp, Karolinska Inst, Dept Immunol Microbiol & Pathol, Div Pathol, SE-14186 Stockholm, Sweden
[4] Sodertorns Hogskola, Stockholm, Sweden
[5] Univ Texas, Sect Mol Genet & Microbiol, Austin, TX 78712 USA
[6] Univ Texas, Inst Cell & Mol Biol, Austin, TX 78712 USA
关键词
D O I
10.1038/35055057
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
We have examined the role of alpha and beta chemokines in the promotion of the ontogenetic development of the brain. RANTES was expressed preferentially in human fetal astrocytes in an age-dependent manner. Astrocytes from 5-week-old brains showed high proliferation and reduced survival, whereas 10-week-old astrocytes exhibited opposite effects. These effects were suppressed by anti-RANTES or anti-RANTES receptor antibodies and were enhanced by recombinant RANTES. RANTES induced tyrosine phosphorylation of several cellular proteins and nuclear translocation of STAT-1 in astrocytes. Interferons (IFN-gamma) was required for RANTES effects because RANTES induced IFN-gamma, and only 10-week-old astrocytes expressed the IFN-gamma receptor. Blocking of IFN-gamma with antibody reversed the effects of RANTES, indicating that cytokine/chemokine networks are critically involved in brain development.
引用
收藏
页码:150 / 157
页数:8
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