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Complement receptor...
Complement receptor 2 is up regulated in the spinal cord following nerve root injury and modulates the spinal cord response
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- Lindblom, Rickard P. F. (author)
- Karolinska Institutet,Uppsala universitet,Thoraxkirurgi,Karolinska Inst, Neuroimmunol Unit, Dept Clin Neurosci, Stockholm, Sweden.;Karolinska Univ Hosp, Neuroimmunol Unit CMM L8 04, S-17176 Stockholm, Sweden.,Karolinska Institutet;Univ Uppsala Hosp;Karolinska Univ Hosp
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- Berg, Alexander (author)
- Karolinska Institutet,Karolinska Inst, Div Neuronal Regenerat, Dept Neurosci, Stockholm, Sweden.
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- Ström, Mikael (author)
- Karolinska Institutet,Karolinska Inst, Neuroimmunol Unit, Dept Clin Neurosci, Stockholm, Sweden.
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- Aeinehband, Shahin (author)
- Karolinska Institutet,Karolinska Inst, Neuroimmunol Unit, Dept Clin Neurosci, Stockholm, Sweden.
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- Dominguez, Cecilia A. (author)
- Karolinska Institutet
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- Al Nimer, Faiez (author)
- Karolinska Institutet
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- Abdelmagid, Nada (author)
- Karolinska Institutet
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- Heinig, Matthias (author)
- Max Delbruck Ctr Mol Med, Expt Genet Cardiovasc Dis, Berlin, Germany.
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- Zelano, Johan (author)
- Karolinska Institutet,Karolinska Inst, Div Neuronal Regenerat, Dept Neurosci, Stockholm, Sweden.
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- Harnesk, Karin (author)
- Karolinska Institutet,Karolinska Inst, Neuroimmunol Unit, Dept Clin Neurosci, Stockholm, Sweden.
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- Hubner, Norbert (author)
- Max Delbruck Ctr Mol Med, Expt Genet Cardiovasc Dis, Berlin, Germany.
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- Nilsson, Bo (author)
- Uppsala universitet,Klinisk immunologi,Uppsala University
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- Nilsson Ekdahl, Kristina (author)
- Uppsala universitet,Klinisk immunologi,Uppsala University,Linnaeus Ctr Biomat Chem, BMC
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- Diez, Margarita (author)
- Karolinska Institutet,Karolinska Inst, Neuroimmunol Unit, Dept Clin Neurosci, Stockholm, Sweden.
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- Cullheim, Staffan (author)
- Karolinska Institutet,Karolinska Inst, Div Neuronal Regenerat, Dept Neurosci, Stockholm, Sweden.
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- Piehl, Fredrik (author)
- Karolinska Institutet
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(creator_code:org_t)
- 2015-10-26
- 2015
- English.
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In: Journal of Neuroinflammation. - : Springer Science and Business Media LLC. - 1742-2094. ; 12
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Abstract
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- Background: Activation of the complement system has been implicated in both acute and chronic states of neurodegeneration. However, a detailed understanding of this complex network of interacting components is still lacking. Methods: Large-scale global expression profiling in a rat F2(DAxPVG) intercross identified a strong cis-regulatory influence on the local expression of complement receptor 2 (Cr2) in the spinal cord after ventral root avulsion (VRA). Expression of Cr2 in the spinal cord was studied in a separate cohort of DA and PVG rats at different time-points after VRA, and also following sciatic nerve transection (SNT) in the same strains. Consequently, Cr2(-/-) mice and Wt controls were used to further explore the role of Cr2 in the spinal cord following SNT. The in vivo experiments were complemented by astrocyte and microglia cell cultures. Results: Expression of Cr2 in naive spinal cord was low but strongly up regulated at 5-7 days after both VRA and SNT. Levels of Cr2 expression, as well as astrocyte activation, was higher in PVG rats than DA rats following both VRA and SNT. Subsequent in vitro studies proposed astrocytes as the main source of Cr2 expression. A functional role for Cr2 is suggested by the finding that transgenic mice lacking Cr2 displayed increased loss of synaptic nerve terminals following nerve injury. We also detected increased levels of soluble CR2 (sCR2) in the cerebrospinal fluid of rats following VRA. Conclusions: These results demonstrate that local expression of Cr2 in the central nervous system is part of the axotomy reaction and is suggested to modulate subsequent complement mediated effects.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Immunologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Immunology in the medical area (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
Keyword
- Complement system
- Complement receptor 2
- Neuroinflammation
- Neurodegeneration
- Synapses
- Immunologi
- Immunology
Publication and Content Type
- ref (subject category)
- art (subject category)
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Lindblom, Rickar ...
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Berg, Alexander
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Ström, Mikael
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Aeinehband, Shah ...
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Dominguez, Cecil ...
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Al Nimer, Faiez
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show more...
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Abdelmagid, Nada
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Heinig, Matthias
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Zelano, Johan
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Harnesk, Karin
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Hubner, Norbert
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Nilsson, Bo
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Nilsson Ekdahl, ...
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Diez, Margarita
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Cullheim, Staffa ...
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Piehl, Fredrik
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Basic Medicine
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and Immunology in th ...
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Neurology
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Journal of Neuro ...
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Linnaeus University
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Uppsala University
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Karolinska Institutet