Antibodies to the α3 subunit of the ganglionic-type nicotinic acetylcholine receptors in patients with autoimmune encephalitis

Makoto Yamakawa, Akihiro Mukaino, Akio Kimura, Yuki Nagasako, Yuki Kitazaki, Yasushi Maeda, Osamu Higuchi, Koutaro Takamatsu, Mari Watari, Nobuaki Yoshikura, Masamichi Ikawa, Izumi Sugimoto, Yasuhisa Sakurai, Hidenori Matsuo, Yukio Ando, Takayoshi Shimohata, Shunya Nakane*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Since autonomic dysfunction is closely associated with autoimmune encephalitis (AE), the objective of this study was to determine the autonomic symptoms and the prevalence of anti-α3 subunit of the ganglionic-type nicotinic acetylcholine receptor (gAChRα3) antibodies in the patients with AE. We reviewed the clinical features of 19 AE patients, and specifically analyzed sera for anti-gAChRα3 antibodies using the luciferase immunoprecipitation system (LIPS) assay. Cardiovascular autonomic symptoms were found to be common in patients with AE, and hypersalivation was seen only in patients with NMDAR encephalitis. LIPS detected anti-gAChRα3 antibodies in the sera from patients with AE (5/29, 26%). This study is the first to demonstrate that clinical characteristics including autonomic symptoms of AE patients with seropositivity for gAChR autoantibodies. It will be important to verify the role of gAChR antibodies in autonomic dysfunction and brain symptoms to clarify the pathogenesis of AE.

Original languageEnglish
Article number577399
JournalJournal of Neuroimmunology
Volume349
DOIs
StatePublished - 2020/12/15

Keywords

  • Autoantibody
  • Autoimmune encephalitis
  • Autonomic dysfunction
  • Ganglionic acetylcholine receptor
  • NMDAR encephalitis

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology
  • Neurology
  • Clinical Neurology

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