Single-cell RNA sequencing reveals cell type-specific immune regulation associated with human neuromyelitis optica spectrum disorder

Front Immunol. 2024 Feb 19:15:1322125. doi: 10.3389/fimmu.2024.1322125. eCollection 2024.

Abstract

Introduction: One rare type of autoimmune disease is called neuromyelitis optica spectrum disorder (NMOSD) and the peripheral immune characteristics of NMOSD remain unclear.

Methods: Here, single-cell RNA sequencing (scRNA-seq) is used to characterize peripheral blood mononuclear cells from individuals with NMOSD.

Results: The differentiation and activation of lymphocytes, expansion of myeloid cells, and an excessive inflammatory response in innate immunity are observed. Flow cytometry analyses confirm a significant increase in the percentage of plasma cells among B cells in NMOSD. NMOSD patients exhibit an elevated percentage of CD8+ T cells within the T cell population. Oligoclonal expansions of B cell receptors are observed after therapy. Additionally, individuals with NMOSD exhibit elevated expression of CXCL8, IL7, IL18, TNFSF13, IFNG, and NLRP3.

Discussion: Peripheral immune response high-dimensional single-cell profiling identifies immune cell subsets specific to a certain disease and identifies possible new targets for NMOSD.

Keywords: B cell; T cell; myeloid cell; neuromyelitis optica spectrum disorder; peripheral blood mononuclear cell; single-cell RNA sequencing.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Autoimmune Diseases*
  • Cell Growth Processes
  • Humans
  • Leukocytes, Mononuclear
  • Neuromyelitis Optica* / genetics
  • Sequence Analysis, RNA

Grants and funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This work was supported by a grant (NO. SBGJ2018077) to WL from the Medical Science and Technology Project of Henan Province. The funder did not participate in study design, data collection and analysis, decision to publish, or preparation of the manuscript.