Anti-GM1 antibodies affect the integrity of lipid rafts

Akihiro Ueda, Sayuri Shima, Tadayuki Miyashita, Shinji Ito, Masami Ueda, Susumu Kusunoki, Kunihiko Asakura, Tatsuro Mutoh

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Previous studies have shown that patients with the axonal form of Guillain-Barré syndrome (GBS) develop autoantibodies against GM1 ganglioside (GM1). Nerve growth factor (NGF) is essential for neuronal survival in vivo and its functional receptor is Trk-tyrosine kinase. Here, we examined the biological effects of sera from patients with the axonal form of GBS on the morphology and the phosphorylation state of Trk-tyrosine kinase in PC12 cells. Furthermore, we examined the effect of the sera on the integrity of membrane lipid rafts biochemically. The data show that anti-GM1 antibodies found in patients' sera but not control sera inhibit NGF-induced Trk autophosphorylation. Most intriguingly, the autoantibodies alter the distribution of Trk in lipid rafts without shifting the distribution of a rafts marker protein. These data strongly suggest that anti-GM1 antibodies directly influence the integrity of the signaling platform, lipid rafts, implicating the importance of lipid rafts in the development of this disorder.

Original languageEnglish
Pages (from-to)355-362
Number of pages8
JournalMolecular and Cellular Neuroscience
Volume45
Issue number4
DOIs
Publication statusPublished - 01-12-2010

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Anti-Idiotypic Antibodies
Lipids
Nerve Growth Factor
Serum
Autoantibodies
Protein-Tyrosine Kinases
G(M1) Ganglioside
PC12 Cells
Membrane Lipids
Phosphorylation
Proteins

All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Cellular and Molecular Neuroscience
  • Cell Biology

Cite this

Ueda, Akihiro ; Shima, Sayuri ; Miyashita, Tadayuki ; Ito, Shinji ; Ueda, Masami ; Kusunoki, Susumu ; Asakura, Kunihiko ; Mutoh, Tatsuro. / Anti-GM1 antibodies affect the integrity of lipid rafts. In: Molecular and Cellular Neuroscience. 2010 ; Vol. 45, No. 4. pp. 355-362.
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Ueda, A, Shima, S, Miyashita, T, Ito, S, Ueda, M, Kusunoki, S, Asakura, K & Mutoh, T 2010, 'Anti-GM1 antibodies affect the integrity of lipid rafts', Molecular and Cellular Neuroscience, vol. 45, no. 4, pp. 355-362. https://doi.org/10.1016/j.mcn.2010.07.008

Anti-GM1 antibodies affect the integrity of lipid rafts. / Ueda, Akihiro; Shima, Sayuri; Miyashita, Tadayuki; Ito, Shinji; Ueda, Masami; Kusunoki, Susumu; Asakura, Kunihiko; Mutoh, Tatsuro.

In: Molecular and Cellular Neuroscience, Vol. 45, No. 4, 01.12.2010, p. 355-362.

Research output: Contribution to journalArticle

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