CNS-wide Sexually Dimorphic Induction of the Major Histocompatibility Complex 1 Pathway With Aging

The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
Colleen A MangoldWillard M Freeman

Abstract

The major histocompatibility complex I (MHCI) pathway, which canonically functions in innate immune viral antigen presentation and detection, is functionally pleiotropic in the central nervous system (CNS). Alternative roles include developmental synapse pruning, regulation of synaptic plasticity, and inhibition of neuronal insulin signaling; all processes altered during brain aging. Upregulation of MHCI components with aging has been reported; however, no systematic examination of MHCI cellular localization, expression, and regulation across CNS regions, life span, and sexes has been reported. In the mouse, MHCI is expressed by neurons and microglia, and MHCI components and receptors (H2-K1, H2-D1, β2M, Lilrb3, Klra2, CD247) display markedly different expression profiles across the hippocampus, cortex, cerebellum, brainstem, and retina. MHCI components, receptors, associated inflammatory transcripts (IL1α, IL1β, IL6, TNFα), and TAP (transporter associated with antigen processing) components are induced with aging and to a greater degree in female than male mice across CNS regions. H2-K1 and H2-D1 expression is associated with differential CG and non-CG promoter methylation across CNS regions, ages, and between sexes, and conco...Continue Reading

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Citations

Jan 18, 2018·Journal of Neurochemistry·Colleen A MangoldMoriah L Szpara
Sep 28, 2017·Aging Cell·Dustin R MasserWillard M Freeman
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Jul 25, 2017·Journal of Neuroinflammation·Colleen A MangoldWillard M Freeman
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Jun 25, 2019·Frontiers in Aging Neuroscience·Lee RyanCarol A Barnes
Feb 9, 2021·Neurochemistry International·Juan José Triviño, Rommy von Bernhardi
Nov 17, 2020·Frontiers in Cellular Neuroscience·Rashmi GamageErika Gyengesi
Mar 17, 2018·Progress in Retinal and Eye Research·Ximena Corso-DíazAnand Swaroop
Nov 3, 2020·Journal of Psychiatric Research·Weijing WangDongfeng Zhang
Apr 10, 2018·Neurobiology of Aging·Niran HadadWillard M Freeman
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Jun 27, 2021·Neurobiology of Aging·Yasmine V DoustJenna M Ziebell
Aug 8, 2021·Journal of Neuropathology and Experimental Neurology·Andrée Delahaye-DuriezJuliette Van Steenwinckel

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