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Single-cell Analysis of Immunophenotype and Cytokine Production in Peripheral Whole Blood via Mass Cytometry

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Published on: June 26, 2018

The Peripheral Immune Traits Changed in Patients with Multiple System Atrophy.

Zhenxiang Gong¹, Rong Gao¹, Li Ba¹

¹Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.

|February 25, 2023

Summary

Peripheral immune cells are altered in multiple system atrophy (MSA). This study found changes in T cell ratios, natural killer cells, and T cell markers in MSA patients compared to healthy controls.

Keywords:

central nervous system dysregulation immunity multiple system atrophy peripheral blood

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Area of Science:

Neuroimmunology
Cellular immunology
Neurology

Background:

Growing evidence implicates immune system dysfunction in multiple system atrophy (MSA) pathology.
Detailed peripheral immune profiles in MSA remain underexplored.
Understanding immune alterations is crucial for elucidating MSA pathogenesis.

Purpose of the Study:

To investigate and delineate peripheral immune cell characteristics in patients with multiple system atrophy (MSA).
To compare immune cell populations and markers between MSA patients and healthy controls (HC).

Main Methods:

A case-control study design was employed.
Peripheral blood samples were collected from 26 MSA patients and 56 age- and sex-matched healthy controls.
Flow cytometry was used to analyze immune cell subsets and expression of activation markers.

Main Results:

MSA patients exhibited an increased ratio of CD4+/CD8+ T cells compared to HC.
Natural killer (NK) cell counts and CD28 expression on CD4+ and CD8+ T cells were elevated in MSA.
A decrease in CD8+ T cells and HLA-DR expression on total T cells was observed in MSA patients (p < 0.05).

Conclusions:

The study reveals significant dysregulation of cellular immunity in multiple system atrophy.
Peripheral immune cell alterations represent a potential area for future mechanistic investigations in MSA.
These findings contribute to understanding the neuroimmune aspects of MSA.