Characteristics of internalization of NMDA-type GluRs with antibodies to GluN1 and GluN2B

To characterize internalization of NMDA-type glutamate receptors (GluRs) by antibodies to NMDA-type GluRs, we produced rabbit antibodies to N-terminals of human GluN1 and GluN2B, and examined internalization of NMDA-type GluRs in HEK293T cells using confocal microscopy. Internalization of NMDA-type GluRs occurred from at least 10  min after incubation with antibodies to GluN1 and or GluN2B and was temperature-dependent. These findings confirm that antibodies to N-terminals of GluN1 and GluN2B present in the cerebrospinal fluid of patients with NMDAR encephalitis can mediate prompt internalization of NMDA-type GluR complexe s.

Source: Journal of Neuroimmunology - October 14, 2020 Category: Allergy & Immunology Authors: Yukitoshi Takahashi, Shigeko Nishimura, Emiko Takao, Risa Kasai, Kaoru Enokida, Kuniko Ida, Masataka Fukuoka, Takayoshi Koike, Hiroo Omatsu, Tokito Yamaguchi, Shiho Takano, Tomoyuki Yoshida, Hisashi Mori Source Type: research