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Series GSE216028 Query DataSets for GSE216028
Status Public on Dec 05, 2022
Title Transcriptional profiling of brain CD4+ and CD8+ TRM cells reveals dominant presence in white and grey matter in Multiple Sclerosis (MS)
Organism Homo sapiens
Experiment type Expression profiling by high throughput sequencing
Summary The human brain is populated by perivascular CD8+ and CD4+ T cells with a tissue-resident memory T (TRM)-cell phenotype. In multiple sclerosis (MS), these cells associate with white matter (WM) and, to a lesser extent, grey matter (GM) lesions. We here investigated the transcriptional and functional profile of brain-resident T cells. Of n=11 subsequent post-mortem brain donors, we isolated CD8+ and CD4+ effector memory and effector memory re-expressing CD45RA T cells from blood and CD8+ and CD4+ CD69+ T cells from corpus callosum WM and cortical GM. Additionally, brain CD69+ T cells were sorted from subcortical WM, corpus callosum WM, and medulla WM/GM of n=3–5 brain donors as well as from paired normal-appearing WM and GM and from WM and GM lesions of n=6 MS brain donors. In all donors, WM and GM T cells were overwhelmingly CD69+CD103+/-. Bulk RNA sequencing of CD8+ and CD4+ CD69+ T cells revealed TRM-cell signatures, as marked by differential expression of, among others, SELL (CD62L), ITGA1 (CD49a), and S1PR1. Notably, gene expression hardly differed between lesional and normal-appearing WM CD8+ and CD4+ CD69+ T cells in MS brains. Genes up-regulated in brain TRM cells were MS4A1 (CD20) and SPP1 (osteopontin, OPN). OPN is also abundantly expressed by microglia and has been shown to inhibit T-cell activity. In line with the increased presence of OPN in active MS lesions, we noticed a reduced production of the inflammatory cytokines IL-2, TNF, and IFNγ by MS lesion-derived CD8+ and CD4+ T cells ex vivo. This study discloses essential characteristics of human brain CD8+ and CD4+ TRM cells in non-MS and MS post-mortem WM and GM, reports OPN as a generic product of brain-resident immune cells, and shows a tight control of the activation state of TRM cells in MS lesions.
 
Overall design Comparative gene expression profiling analysis of bulk RNA-seq data of brain CD8+ and CD4+ CD69+ T cells from paired normal-appearing WM and GM and from WM and GM lesions of n=6 MS brain donors. Third dataset of 3.
 
Contributor(s) Hsiao C, Engelenburg HJ, Jongejan A, Zhu J, Zhang B, Mingueneau M, Moerland PD, Huitinga I, Smolders J, Hamann J
Citation(s) 36594029
Submission date Oct 18, 2022
Last update date Jan 13, 2023
Contact name Jeen Engelenburg
E-mail(s) [email protected]
Organization name Netherlands Institute for Neuroscience
Lab Neuroimmunology lab
Street address Meibergdreef 47
City Amsterdam
ZIP/Postal code 1105BA
Country Netherlands
 
Platforms (1)
GPL24676 Illumina NovaSeq 6000 (Homo sapiens)
Samples (34)
GSM6656435 NAWM, CD4, 01
GSM6656436 NAGM, CD4, 01
GSM6656437 WM_Lesion, CD4, 01
This SubSeries is part of SuperSeries:
GSE216030 Transcriptional profiling of brain CD4+ and CD8+ TRM cells reveals dominant presence in white and grey matter in Multiple Sclerosis
Relations
BioProject PRJNA891738

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Supplementary file Size Download File type/resource
GSE216028_allCounts.orig.tab.geo.txt.gz 1.1 Mb (ftp)(http) TXT
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Processed data are available on Series record

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