Enhanced expression of fractalkine in HIV-1 associated dementia

被引:68
作者
Pereira, CF
Middel, J
Jansen, G
Verhoef, J
Nottet, HSLM
机构
[1] Univ Utrecht, Med Ctr, Eijkman Winkler Inst, Neuroimmunol Sect, NL-3584 CX Utrecht, Netherlands
[2] Univ Utrecht, Med Ctr, Dept Pathol, Neuropathol Sect, NL-3584 CX Utrecht, Netherlands
关键词
fractalkine; HIV-1 associated dementia; monocyte-derived macrophages; primary human astrocytes; reverse transcriptase-polymerase chain reaction; immunohistochemistry;
D O I
10.1016/S0165-5728(01)00262-4
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
The CX3C chemokine fractalkine was found to be up-regulated in the brain during inflammatory processes. In this study, we tried to assess the role of fractalkine in HIV-1-associated dementia. Fractalkine expression is up-regulated in the brains of AIDS patients with HAD. Fractalkine immunoreactivity was mainly detected in astrocytes. in addition, fractalkine expression was found to be up-regulated in cocultures of astrocytes and HIV infected macrophages. This up-regulation was dependent on cell-cell contact. We propose that fractalkine produced during interactions between astrocytes and HIV-infected macrophages plays a role in HAD by regulating the trafficking of monocytic cells in the brain parenchyma. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:168 / 175
页数:8
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