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Lymphocyte infiltration in the injured brain: Role of proinflammatory cytokines

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons39034

Raivich,  G.
Emeritus Group: Neuromorphology / Kreutzberg, MPI of Neurobiology, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons38768

Bohatschek,  M.
Emeritus Group: Neuromorphology / Kreutzberg, MPI of Neurobiology, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons39115

Werner,  A.
Emeritus Group: Neuromorphology / Kreutzberg, MPI of Neurobiology, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons38913

Jones,  L. L.
Emeritus Group: Neuromorphology / Kreutzberg, MPI of Neurobiology, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons38842

Galiano,  M.
Emeritus Group: Neuromorphology / Kreutzberg, MPI of Neurobiology, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons38929

Kloss,  C. U. A.
Emeritus Group: Neuromorphology / Kreutzberg, MPI of Neurobiology, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons38971

Liu,  Z. Q.
Emeritus Group: Neuromorphology / Kreutzberg, MPI of Neurobiology, Max Planck Society;

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Zitation

Raivich, G., Bohatschek, M., Werner, A., Jones, L. L., Galiano, M., Kloss, C. U. A., et al. (2003). Lymphocyte infiltration in the injured brain: Role of proinflammatory cytokines. Journal of Neuroscience Research, 72(6), 726-733.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0012-231A-C
Zusammenfassung
Studies using mouse axotomised facial motoneuron model show a strong and highly selective entry of CD3+ lymphocytes into the affected nucleus, with a maximum at Day 14, which coincides with the peak of neuronal cell death, microglial phagocytosis, and increased synthesis of interleukin-1 beta (IL1beta), tumour necrosis factor-alpha (TNFalpha) and interferon-gamma (IFNgamma) We explored the possible involvement of these cytokines during the main phase of lymphocyte recruitment into the axotomised facial motor nucleus 7-21 days after nerve cut using mice homozygously deficient for IL1 receptor type 1 (IL1R1(-/-)), TNF receptor type 1 (TNFR1(-/-)), type 2 (TNFR2(-/-)) and type 1 and 2 (TNFR1&2(-/-)), IFNgamma receptor type 1 (IFNgammaR1(-/-)), and the appropriate controls for the genetic background. Transgenic deletion of IL1R1 led to a 54% decrease and that of TNFR2 to a 44% reduction in the number of CD3+ T-cells in the axotomised facial motor nucleus, with a similar relative decrease at Day 7, 14, and 21. Deletion of TNFR1 or IFNgammaR1 had no significant effect. Deletion of both TNFR1 and 2 (TNFR1&2(-/-)) caused a somewhat stronger, 63% decrease than did TNFR2 deletion alone, but this could be due to an almost complete inhibition of neuronal cell death. No mutations seemed to inhibit aggregation of CD3+ T-cells around glial nodules consisting of Ca-ion binding adaptor protein-1 (IBA1)+ phagocytotic microglia and neuronal debris. Altogether, the current data show the importance of IL1R1 and TNFR2 as the key players during the main phase of lymphocyte recruitment to the damaged part of the central nervous system. (C) 2003 Wiley-Liss, Inc.