CD8(+) T Cell-Mediated Neuronal Dysfunction and Degeneration in Limbic Encephalitis.

Abstract:

:Autoimmune inflammation of the limbic gray matter structures of the human brain has recently been identified as major cause of mesial temporal lobe epilepsy with interictal temporal epileptiform activity and slowing of the electroencephalogram, progressive memory disturbances, as well as a variety of other behavioral, emotional, and cognitive changes. Magnetic resonance imaging exhibits volume and signal changes of the amygdala and hippocampus, and specific anti-neuronal antibodies binding to either intracellular or plasma membrane neuronal antigens can be detected in serum and cerebrospinal fluid. While effects of plasma cell-derived antibodies on neuronal function and integrity are increasingly becoming characterized, potentially contributing effects of T cell-mediated immune mechanisms remain poorly understood. CD8(+) T cells are known to directly interact with major histocompatibility complex class I-expressing neurons in an antigen-specific manner. Here, we summarize current knowledge on how such direct CD8(+) T cell-neuron interactions may impact neuronal excitability, plasticity, and integrity on a single cell and network level and provide an overview on methods to further corroborate the in vivo relevance of these mechanisms mainly obtained from in vitro studies.

journal_name

Front Neurol

journal_title

Frontiers in neurology

authors

Ehling P,Melzer N,Budde T,Meuth SG

doi

10.3389/fneur.2015.00163

subject

Has Abstract

pub_date

2015-07-15 00:00:00

pages

163

issn

1664-2295

journal_volume

6

pub_type

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