Systemic sclerosis & Raynaud's

Increased CD8+ tissue resident memory T cells, regulatory T cells and activated natural killer cells in systemic sclerosis lungs

Rheumatology (Oxford)Published Mechanistic study

Authors' conclusion

SSc-ILD lungs show activated lymphoid populations.

Study context

Population
Lymphoid populations from SSc-ILD and healthy control (HC) lung explants
Participants
13 vs 6
Comparison
SSc-ILD vs HC lung explants
  • SSc-ILDn = 13
  • HCn = 6reference
Outcome
Lymphoid subpopulations (absolute cell numbers and cell proportions per cluster) in SSc-ILD vs HC lung explants
Methodological detailssingle-cell RNA sequencing, lung explants
  • Single-cell RNA sequencing
  • Lung explants

Main finding

As reported in the abstract

Lymphoid subpopulations in lung explants
  • Activated CD16+ NK cells, CD8+ tissue resident memory T cells and Treg cells proportionately higher in SSc-ILD vs HC lungs
  • Activated CD16+ NK cells in SSc-ILD showed upregulated granzyme B, IFN-γ and CD226
  • Amphiregulin, highly upregulated by NK cells, predicted to interact with epidermal growth factor receptor on several bronchial epithelial cell populations
  • Shifts in CD8+ T cell populations indicated a transition from resting to effector to tissue resident phenotypes in SSc-ILD

Original publication

Increased CD8+ tissue resident memory T cells, regulatory T cells and activated natural killer cells in systemic sclerosis lungs. Rheumatology (Oxford). Published 13 June 2023. doi:10.1093/rheumatology/kead273

Composed by AI from the published abstract and checked against it. How Briefs are made →

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