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Multiplexed imaging of immune cells in staged multiple sclerosis lesions by mass cytometry

Authors :
Salma Sheikh-Mohamed
Eric C Swanson
Karen Legg
Olga Ornatsky
Valeria Ramaglia
Jennifer L. Gommerman
Trevor D. McKee
Fred Fu
Alexandre Prat
Olga L. Rojas
Stephanie Zandee
Publication Year :
2019
Publisher :
Cold Spring Harbor Laboratory, 2019.

Abstract

Multiple Sclerosis (MS) is characterized by demyelinated and inflammatory lesions in the brain and spinal cord. Lesions contain immune cells with variable phenotypes and functions. Here we use imaging mass cytometry (IMC) to enable the simultaneous imaging of 15+ proteins within 11 staged MS lesions. Using this approach, we demonstrated that the majority of demyelinating macrophage-like cells in active lesions were derived from the resident microglial pool. Although CD8+ T cells predominantly infiltrated the lesions, CD4+ T cells were also abundant but localized closer to blood vessels. B cells with a predominant switched memory phenotype were enriched across all lesion stages and were found to preferentially infiltrate the tissue as compared to unswitched B cells which localized to the vasculature. We propose that IMC will enable a comprehensive analysis of single-cell phenotypes, their functional states and cell-cell interactions in relation to lesion morphometry and demyelinating activity in the MS brain.

Details

Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....49a2e32f2ac3187f69c77045c28d047d
Full Text :
https://doi.org/10.1101/638015