title: Neuroimmune regulation of homeostatic synaptic plasticity.
abstract: Homeostatic synaptic plasticity refers to a set of negative-feedback mechanisms that are used by neurons to maintain activity within a functional range. While it is becoming increasingly clear that homeostatic regulation of synapse function is a key principle in the nervous system, the molecular details of this regulation are only beginning to be uncovered. Recent evidence implicates molecules classically associated with the peripheral immune system in the modulation of homeostatic synaptic plasticity. In particular, the pro-inflammatory cytokine TNFα, class I major histocompatibility complex, and neuronal pentraxin 2 are essential in the regulation of the compensatory synaptic response that occurs in response to prolonged neuronal inactivity. This review will present and discuss current evidence implicating neuroimmune molecules in the homeostatic regulation of synapse function. This article is part of the Special Issue entitled 'Homeostatic Synaptic Plasticity'.
authors.affiliation: Centre for Research in Neuroscience, Research Institute of the McGill University Health Center, Montreal General Hospital, L7-132, 1650 Cedar Av, Montreal, QC H3G 1A4, Canada.
authors.forename: Horia
authors.initials: H
authors.lastname: Pribiag
authors.affiliation: Centre for Research in Neuroscience, Research Institute of the McGill University Health Center, Montreal General Hospital, L7-132, 1650 Cedar Av, Montreal, QC H3G 1A4, Canada. Electronic address: david.stellwagen@mcgill.ca.
authors.forename: David
authors.initials: D
authors.lastname: Stellwagen
mesh_terms: D000818:Animals; D002097:C-Reactive Protein / Q000378:metabolism; D006706:Homeostasis / Q000276:immunology; D006801:Humans; D008285:Major Histocompatibility Complex / Q000502:physiology; D009419:Nerve Tissue Proteins / Q000378:metabolism; D015213:Neuroimmunomodulation; D009473:Neuronal Plasticity / Q000276:immunology*; D013569:Synapses / Q000276:immunology*; D014409:Tumor Necrosis Factor-alpha / Q000378:metabolism; D000099153:Pentraxins
chemical_list: D002097:C-Reactive Protein; D009419:Nerve Tissue Proteins; D014409:Tumor Necrosis Factor-alpha; D000099153:Pentraxins
keywords: Cbln1; Class I MHC; Hebbian plasticity; Homeostatic synaptic plasticity; Neuronal pentraxins; Ocular dominance; Pro-inflammatory cytokines; Receptor trafficking; Synaptogenesis; TNFα