Stress-free single-cell transcriptomic profiling and functional genomics of murine eosinophils

Borrelli, Costanza; Gurtner, Alessandra; Arnold, Isabelle C.; Moor, Andreas E.

doi:10.1038/s41596-024-00967-3

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2024

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Cited by 9 publications

References 67 publications

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Progress in Cellular Mechanisms of Chronic Rhinosinusitis

Li,

Wang,

Liu

et al. 2024

Fundamental Research

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Progress in Cellular Mechanisms of Chronic Rhinosinusitis

Li,

Wang,

Liu

et al. 2024

Fundamental Research

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Single-cell RNA-sequencing of human eosinophils in allergic inflammation in the esophagus

Ben-Baruch Morgenstern,

Rochman,

Kotliar

et al. 2024

Journal of Allergy and Clinical Immunology

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Single-cell RNA sequencing reveals transcriptional changes in circulating immune cells from patients with severe asthma induced by biologics

Park,

Lee,

Shin

et al. 2024

Exp Mol Med

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Patients with severe eosinophilic asthma often require systemic medication, including corticosteroids and anti-type 2 (T2) cytokine biologics, to control the disease. While anti-IL5 and anti-IL4Rα antibodies suppress the effects of IL-4, IL-5 and IL-13, the molecular pathways modified by these biologics that are associated with clinical improvement remain unclear. Therefore, we aimed to describe the effects of T2-targeting biologics on the gene expression of blood immune cells. We conducted single-cell RNA sequencing (scRNA-seq) of peripheral blood mononuclear cells (PBMCs) from eight patients with severe eosinophilic asthma treated with mepolizumab, reslizumab, or dupilumab. PBMCs were obtained before the initiation of biologics and at 1- and 6-month timepoints after the initiation of treatment to elucidate treatment-induced changes. During treatment, the proportions of T cells/natural killer (NK) cells, myeloid cells, and B cells did not change. However, the composition of classical monocytes (CMs) changed: IL1B+ CMs were reduced, and S100A+ CMs were increased. The subsets of T cells also changed, and significant downregulation of the NF-κB pathway was observed. The genes related to the NF-κB pathway were suppressed across T/NK, myeloid, and B cells. The transcriptional landscape did not significantly change after the first month of treatment, but marked changes occurred at six-month intervals. In conclusion, regardless of the type of biologics used, suppression of T2-mediated pathways ultimately reduces the expression of genes related to NF-κB signaling in circulating immune cells. Further studies are warranted to identify potential biomarkers related to treatment response and long-term outcomes.Clinical trial registration number: NCT05164939

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Stress-free single-cell transcriptomic profiling and functional genomics of murine eosinophils

Cited by 9 publications

References 67 publications

Progress in Cellular Mechanisms of Chronic Rhinosinusitis

Progress in Cellular Mechanisms of Chronic Rhinosinusitis

Single-cell RNA-sequencing of human eosinophils in allergic inflammation in the esophagus

Single-cell RNA sequencing reveals transcriptional changes in circulating immune cells from patients with severe asthma induced by biologics

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