Multi-parameter immune profiling of peripheral blood mononuclear cells by multiplexed single-cell mass cytometry in

Chotima Böttcher1,2, Camila Fernández-Zapata3,4, Stephan Schlickeiser3,5

  • 1Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany. chotima.boettcher@charite.de.

Scientific Reports
|December 21, 2019
PubMed

Insights

This study analyzed immune cells in early multiple sclerosis (MS) patients. While monocytes showed few differences, specific T cell subsets were altered in MS peripheral blood mononuclear cells (PBMCs).

Area of Science:

  • Immunology
  • Neuroscience
  • Cell Biology

Background:

  • Multiple sclerosis (MS) is a central nervous system (CNS) inflammatory and neurodegenerative disease.
  • Rodent studies link CNS macrophages to MS severity, but human data is limited.
  • Understanding peripheral immune cell changes in early MS is crucial.

Purpose of the Study:

  • To explore differences in peripheral blood mononuclear cells (PBMCs) between healthy controls and drug-naïve early MS patients.
  • To characterize immune cell populations, focusing on monocytes, using advanced cytometry.
  • To identify potential biomarkers or therapeutic targets within PBMCs.

Main Methods:

  • Exploratory analysis of PBMCs from healthy controls and early MS patients.
  • Utilized multiplexed single-cell mass cytometry with 64 antibodies.
  • Employed algorithm-based data analysis to assess immune cell composition and marker expression.

Main Results:

  • Overall PBMC composition was similar, but early MS patients showed increased CCR7+ and IL-6+ T cells.
  • A decrease in NFAT1hiT-bethiCD4+ T cells was observed in early MS.
  • Mild alterations in myeloid cells included decreased CD141hiIRF8hiCXCR3+CD68- dendritic cells; monocytes showed no significant differences compared to controls.

Conclusions:

  • Early MS is associated with specific alterations in T cell subsets within PBMCs.
  • Monocyte populations in early MS PBMCs do not significantly differ from healthy controls.
  • This research provides a foundation for further investigation into PBMC subsets in MS.

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