iScience (Dec 2023)

A single-cell atlas of the peripheral immune response in patients with influenza A virus infection

  • Yin Zhang,
  • Lu Zong,
  • Yuanling Zheng,
  • Yu Zhang,
  • Nan Li,
  • Yaoyao Li,
  • Yangyang Jin,
  • Liujing Chen,
  • Jinling Ouyang,
  • Asma Bibi,
  • Ying Huang,
  • Yuanhong Xu

Journal volume & issue
Vol. 26, no. 12
p. 108507

Abstract

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Summary: Influenza A virus (IAV) remains a pressing global health concern, yet our understanding of the specific nature and functional roles of certain circulating cell subsets in relation to this viral infection remains unclear. We performed single-cell RNA sequencing (scRNA-seq) on single-cell whole-blood (scWB) isolated from various populations using the Singleron Matrix platform. Our investigation showed a significant upregulation of the IFN-stimulated gene, IFN-α-inducible protein 27 (IFI27), in patients affected by IAV infection and further found that the heightened expression of IFI27 was primarily concentrated in specific immune cell populations, including monocytes and conventional dendritic cells (cDCs). Notably, we identified a specific subset of neutrophils, neutrophil_ISG15, which implicates interferon (IFN) signaling in IAV infection. Our findings provide a comprehensive understanding of the cellular subtypes and molecular characteristics of scWB across different populations with IAV infection.

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