The FcRgamma chain is not essential for induction of experimental allergic encephalomyelitis (EAE) or anti-myelin antibody-mediated exacerbation of EAE

Esther C W Breij, Priscilla Heijnen, Rianka Vloet, Takashi Saito, Jan G J van de Winkel, Christine D Dijkstra, Sandra Amor, Sjef Verbeek

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Macrophages are considered essential mediators in multiple sclerosis (MS) pathogenesis, presumably through myelin phagocytosis and release of inflammatory mediators. Macrophages and microglia express activating Fcgamma receptors (FcgammaRI and FcgammaRIII), which depend on the FcRgamma chain for surface expression and signaling. In MS lesions, crosslinking of FcgammaR by immunoglobulins (IgG) directed against myelin may enhance myelin phagocytosis and inflammation. We studied the role of FcgammaR and anti-myelin antibodies in MOG35-55-induced experimental allergic encephalomyelitis (EAE) in C57BL/6 mice, a model of MS-like disease. Incidence and severity of EAE were similar in FcRy chain-/- (FcRgamma-/-) and wild-type (wt) mice, albeit with delayed onset in FcRgamma-/- mice. This demonstrates that the FcRy chain is not essential for induction of EAE, but that FcRgamma signaling may contribute to the preclinical phase. The role of FcgammaR in antibody-mediated demyelination was addressed by injection of anti-myelin antibodies (Z12 mAb) at onset of MOG35-55-induced EAE. Injection of Z12 mAb rapidly reduced survival time in both wt and FcRgamma-/- mice, demonstrating that antibody-mediated exacerbation of EAE is independent of the FcRgamma chain. Interestingly, Z12-induced exacerbation of inflammation and demyelination persisted longer in wt than FcRgamma-/- mice, suggesting that IgG-FcgammaR interactions may contribute to a sustained pathologic effect of anti-myelin antibodies in the CNS.

Original languageEnglish
Pages (from-to)304-11
Number of pages8
JournalJournal of Neuropathology and Experimental Neurology
Volume64
Issue number4
Publication statusPublished - Apr 2005

Cite this

Breij, E. C. W., Heijnen, P., Vloet, R., Saito, T., van de Winkel, J. G. J., Dijkstra, C. D., ... Verbeek, S. (2005). The FcRgamma chain is not essential for induction of experimental allergic encephalomyelitis (EAE) or anti-myelin antibody-mediated exacerbation of EAE. Journal of Neuropathology and Experimental Neurology, 64(4), 304-11.
Breij, Esther C W ; Heijnen, Priscilla ; Vloet, Rianka ; Saito, Takashi ; van de Winkel, Jan G J ; Dijkstra, Christine D ; Amor, Sandra ; Verbeek, Sjef. / The FcRgamma chain is not essential for induction of experimental allergic encephalomyelitis (EAE) or anti-myelin antibody-mediated exacerbation of EAE. In: Journal of Neuropathology and Experimental Neurology. 2005 ; Vol. 64, No. 4. pp. 304-11.
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title = "The FcRgamma chain is not essential for induction of experimental allergic encephalomyelitis (EAE) or anti-myelin antibody-mediated exacerbation of EAE",
abstract = "Macrophages are considered essential mediators in multiple sclerosis (MS) pathogenesis, presumably through myelin phagocytosis and release of inflammatory mediators. Macrophages and microglia express activating Fcgamma receptors (FcgammaRI and FcgammaRIII), which depend on the FcRgamma chain for surface expression and signaling. In MS lesions, crosslinking of FcgammaR by immunoglobulins (IgG) directed against myelin may enhance myelin phagocytosis and inflammation. We studied the role of FcgammaR and anti-myelin antibodies in MOG35-55-induced experimental allergic encephalomyelitis (EAE) in C57BL/6 mice, a model of MS-like disease. Incidence and severity of EAE were similar in FcRy chain-/- (FcRgamma-/-) and wild-type (wt) mice, albeit with delayed onset in FcRgamma-/- mice. This demonstrates that the FcRy chain is not essential for induction of EAE, but that FcRgamma signaling may contribute to the preclinical phase. The role of FcgammaR in antibody-mediated demyelination was addressed by injection of anti-myelin antibodies (Z12 mAb) at onset of MOG35-55-induced EAE. Injection of Z12 mAb rapidly reduced survival time in both wt and FcRgamma-/- mice, demonstrating that antibody-mediated exacerbation of EAE is independent of the FcRgamma chain. Interestingly, Z12-induced exacerbation of inflammation and demyelination persisted longer in wt than FcRgamma-/- mice, suggesting that IgG-FcgammaR interactions may contribute to a sustained pathologic effect of anti-myelin antibodies in the CNS.",
keywords = "Animals, Antibodies, Monoclonal, Demyelinating Diseases, Encephalomyelitis, Autoimmune, Experimental, Inflammation, Macrophages, Mice, Mice, Inbred C57BL, Mice, Knockout, Myelin Proteins, Myelin Sheath, Myelin-Associated Glycoprotein, Myelin-Oligodendrocyte Glycoprotein, Protein Subunits, Receptors, IgG, Survival Rate, Journal Article, Research Support, Non-U.S. Gov't",
author = "Breij, {Esther C W} and Priscilla Heijnen and Rianka Vloet and Takashi Saito and {van de Winkel}, {Jan G J} and Dijkstra, {Christine D} and Sandra Amor and Sjef Verbeek",
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pages = "304--11",
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The FcRgamma chain is not essential for induction of experimental allergic encephalomyelitis (EAE) or anti-myelin antibody-mediated exacerbation of EAE. / Breij, Esther C W; Heijnen, Priscilla; Vloet, Rianka; Saito, Takashi; van de Winkel, Jan G J; Dijkstra, Christine D; Amor, Sandra; Verbeek, Sjef.

In: Journal of Neuropathology and Experimental Neurology, Vol. 64, No. 4, 04.2005, p. 304-11.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - The FcRgamma chain is not essential for induction of experimental allergic encephalomyelitis (EAE) or anti-myelin antibody-mediated exacerbation of EAE

AU - Breij, Esther C W

AU - Heijnen, Priscilla

AU - Vloet, Rianka

AU - Saito, Takashi

AU - van de Winkel, Jan G J

AU - Dijkstra, Christine D

AU - Amor, Sandra

AU - Verbeek, Sjef

PY - 2005/4

Y1 - 2005/4

N2 - Macrophages are considered essential mediators in multiple sclerosis (MS) pathogenesis, presumably through myelin phagocytosis and release of inflammatory mediators. Macrophages and microglia express activating Fcgamma receptors (FcgammaRI and FcgammaRIII), which depend on the FcRgamma chain for surface expression and signaling. In MS lesions, crosslinking of FcgammaR by immunoglobulins (IgG) directed against myelin may enhance myelin phagocytosis and inflammation. We studied the role of FcgammaR and anti-myelin antibodies in MOG35-55-induced experimental allergic encephalomyelitis (EAE) in C57BL/6 mice, a model of MS-like disease. Incidence and severity of EAE were similar in FcRy chain-/- (FcRgamma-/-) and wild-type (wt) mice, albeit with delayed onset in FcRgamma-/- mice. This demonstrates that the FcRy chain is not essential for induction of EAE, but that FcRgamma signaling may contribute to the preclinical phase. The role of FcgammaR in antibody-mediated demyelination was addressed by injection of anti-myelin antibodies (Z12 mAb) at onset of MOG35-55-induced EAE. Injection of Z12 mAb rapidly reduced survival time in both wt and FcRgamma-/- mice, demonstrating that antibody-mediated exacerbation of EAE is independent of the FcRgamma chain. Interestingly, Z12-induced exacerbation of inflammation and demyelination persisted longer in wt than FcRgamma-/- mice, suggesting that IgG-FcgammaR interactions may contribute to a sustained pathologic effect of anti-myelin antibodies in the CNS.

AB - Macrophages are considered essential mediators in multiple sclerosis (MS) pathogenesis, presumably through myelin phagocytosis and release of inflammatory mediators. Macrophages and microglia express activating Fcgamma receptors (FcgammaRI and FcgammaRIII), which depend on the FcRgamma chain for surface expression and signaling. In MS lesions, crosslinking of FcgammaR by immunoglobulins (IgG) directed against myelin may enhance myelin phagocytosis and inflammation. We studied the role of FcgammaR and anti-myelin antibodies in MOG35-55-induced experimental allergic encephalomyelitis (EAE) in C57BL/6 mice, a model of MS-like disease. Incidence and severity of EAE were similar in FcRy chain-/- (FcRgamma-/-) and wild-type (wt) mice, albeit with delayed onset in FcRgamma-/- mice. This demonstrates that the FcRy chain is not essential for induction of EAE, but that FcRgamma signaling may contribute to the preclinical phase. The role of FcgammaR in antibody-mediated demyelination was addressed by injection of anti-myelin antibodies (Z12 mAb) at onset of MOG35-55-induced EAE. Injection of Z12 mAb rapidly reduced survival time in both wt and FcRgamma-/- mice, demonstrating that antibody-mediated exacerbation of EAE is independent of the FcRgamma chain. Interestingly, Z12-induced exacerbation of inflammation and demyelination persisted longer in wt than FcRgamma-/- mice, suggesting that IgG-FcgammaR interactions may contribute to a sustained pathologic effect of anti-myelin antibodies in the CNS.

KW - Animals

KW - Antibodies, Monoclonal

KW - Demyelinating Diseases

KW - Encephalomyelitis, Autoimmune, Experimental

KW - Inflammation

KW - Macrophages

KW - Mice

KW - Mice, Inbred C57BL

KW - Mice, Knockout

KW - Myelin Proteins

KW - Myelin Sheath

KW - Myelin-Associated Glycoprotein

KW - Myelin-Oligodendrocyte Glycoprotein

KW - Protein Subunits

KW - Receptors, IgG

KW - Survival Rate

KW - Journal Article

KW - Research Support, Non-U.S. Gov't

M3 - Article

VL - 64

SP - 304

EP - 311

JO - Journal of Neuropathology and Experimental Neurology

JF - Journal of Neuropathology and Experimental Neurology

SN - 0022-3069

IS - 4

ER -