Microglial cells and peritoneal macrophages release activin A upon stimulation with Toll-like receptor agonists

被引:46
作者
Ebert, Sandra [1 ]
Zeretzke, Moritz [1 ]
Nau, Roland [1 ]
Michel, Uwe [1 ]
机构
[1] Univ Gottingen, Dept Neurol, D-37075 Gottingen, Germany
关键词
activin A; follistatin; microglia; peritoneal macrophages; meningitis; toll-like receptors;
D O I
10.1016/j.neulet.2006.11.065
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Activin A levels are elevated in the cerebrospinal fluid (CSF) of patients with meningitis and in the sera of patients with sepsis. The source(s) of the elevated concentrations of activin A in CSF and serum have not yet been discovered. Here we demonstrate that primary mouse microglial cells and peritoneal macrophages release activin A after treatment with agonists of Toll-like receptor (TLR) 2, 4, and 9. These findings provide further evidence for a role of activin in the innate immune response and suggest that microglial cells and macrophages are a source of elevated activin A concentrations observed in the CSF during bacterial meningitis and in the systemic circulation during sepsis. (c) 2006 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:241 / 244
页数:4
相关论文
共 37 条
[1]   Toll-like receptors: critical proteins linking innate and acquired immunity [J].
Akira, S ;
Takeda, K ;
Kaisho, T .
NATURE IMMUNOLOGY, 2001, 2 (08) :675-680
[2]   Immune function of microglia [J].
Aloisi, F .
GLIA, 2001, 36 (02) :165-179
[3]   Differential regulation of Toll-like receptor mRNAs in experimental murine central nervous system infections [J].
Böttcher, T ;
von Mering, M ;
Ebert, S ;
Meyding-Lamadé, U ;
Kuhnt, U ;
Gerber, J ;
Nau, R .
NEUROSCIENCE LETTERS, 2003, 344 (01) :17-20
[4]   THE PLASMACYTOMA GROWTH INHIBITOR RESTRICTIN-P IS AN ANTAGONIST OF INTERLEUKIN-6 AND INTERLEUKIN-11 - IDENTIFICATION AS A STROMA-DERIVED ACTIVIN-A [J].
BROSH, N ;
STERNBERG, D ;
HONIGWACHSSHAANANI, J ;
LEE, BC ;
SHAV-TAL, Y ;
TZEHOVAL, E ;
SHULMAN, LM ;
TOLEDO, J ;
HACHAM, Y ;
CARMI, P ;
JIANG, W ;
SASSE, J ;
HORN, F ;
BURSTEIN, Y ;
ZIPORI, D .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1995, 270 (49) :29594-29600
[5]   Broad expression of Toll-like receptors in the human central nervous system [J].
Bsibsi, M ;
Ravid, R ;
Gveric, D ;
van Noort, JM .
JOURNAL OF NEUROPATHOLOGY AND EXPERIMENTAL NEUROLOGY, 2002, 61 (11) :1013-1021
[6]   Follistatins neutralize activin bioactivity by inhibition of activin binding to its type II receptors [J].
deWinter, JP ;
tenDijke, P ;
deVries, CJM ;
vanAchterberg, TAE ;
Sugino, H ;
deWaele, P ;
Huylebroeck, D ;
Verschueren, K ;
vandenEijndenvanRaaij, AJM .
MOLECULAR AND CELLULAR ENDOCRINOLOGY, 1996, 116 (01) :105-114
[7]   Dose-dependent activation of microglial cells by Toll-like receptor agonists alone and in combination [J].
Ebert, S ;
Gerber, J ;
Bader, S ;
Mühlhauser, F ;
Brechtel, K ;
Mitchell, TJ ;
Nau, R .
JOURNAL OF NEUROIMMUNOLOGY, 2005, 159 (1-2) :87-96
[8]   Activin A concentrations in human cerebrospinal fluid are age-dependent and elevated in meningitis [J].
Ebert, Sandra ;
Phillips, David J. ;
Jenzewski, Peter ;
Nau, Roland ;
O'Connor, Anne E. ;
Michel, Uwe .
JOURNAL OF THE NEUROLOGICAL SCIENCES, 2006, 250 (1-2) :50-57
[9]   Cerebrospinal fluid activin A measurement in asphyxiated full-term newborns predicts hypoxic ischemic encephalopathy [J].
Florio, P ;
Luisi, S ;
Bruschettini, M ;
Grutzfeld, D ;
Dobrzanska, A ;
Bruschettini, P ;
Petraglia, F ;
Gazzolo, D .
CLINICAL CHEMISTRY, 2004, 50 (12) :2386-2389
[10]   A novel role of follistatin, an activin-binding protein, in the inhibition of activin action in rat pituitary cells - Endocytotic degradation of actin and its acceleration by follistatin associated with cell-surface heparan sulfate [J].
Hashimoto, O ;
Nakamura, T ;
Shoji, H ;
Shimasaki, S ;
Hayashi, Y ;
Sugino, H .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1997, 272 (21) :13835-13842