Cited by 270Single-cell and spatial transcriptomicsT-cell and B-cell ImmunologyImmune responses and vaccinations

A human circulating immune cell landscape in aging and COVID-19

Open access
Zheng, Yingfeng, Liu, Xiuxing, Le, Wenqing, Xie, Lihui, Li, He, Wen, Wen, Wang, Si, Ma, Shuai +14 more·2020·Protein & Cell

Abstract

Age-associated changes in immune cells have been linked to an increased risk for infection. However, a global and detailed characterization of the changes that human circulating immune cells undergo with age is lacking. Here, we combined scRNA-seq, mass cytometry and scATAC-seq to compare immune cell types in peripheral blood collected from young and old subjects and patients with COVID-19. We found that the immune cell landscape was reprogrammed with age and was characterized by T cell polarization from naive and memory cells to effector, cytotoxic, exhausted and regulatory cells, along with increased late natural killer cells, age-associated B cells, inflammatory monocytes and age-associated dendritic cells. In addition, the expression of genes, which were implicated in coronavirus susceptibility, was upregulated in a cell subtype-specific manner with age. Notably, COVID-19 promoted age-induced immune cell polarization and gene expression related to inflammation and cellular senescence. Therefore, these findings suggest that a dysregulated immune system and increased gene expression associated with SARS-CoV-2 susceptibility may at least partially account for COVID-19 vulnerability in the elderly.

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Crossref · 10.1007/s13238-020-00762-2

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  • Immune cell disorganization associated with aging may contribute to the heightened severity of COVID-19 and COPD in the elderly.

    “Notably, immune cell disorganization associated with aging may contribute to the heightened severity of COVID-19 and chronic obstructive pulmonary disease (COPD) in the elderly.169,177”

    From Inflammation and aging: signaling pathways and intervention therapies (2023) · cites this paper as [177]

    The Discussion (page unavailable) explicitly describes a potential contribution of aging-related immune cell disorganization to greater COVID-19 severity in older patients. The paper does not address COPD, so it supports only the COVID-19 part of the citing sentence. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • SARS-CoV-2 infection induces polarization of peripheral blood immune cell subsets typical of ageing, including expression of inflammation- and senescence-associated genes.

    “SARS-CoV-2 infection was shown to induce polarization of peripheral blood immune cell subsets that is typical for ageing and includes the expression of genes associated with inflammation and senescence82.”

    From COVID-19 and cellular senescence (2023) · cites this paper as [82]

  • Coronavirus susceptibility genes, including CD147, CD26, and ANPEP, are upregulated with age.

    “coronavirus susceptibility genes, among them CD147, CD26 and ANPEP (encoding aminopeptidase N; see ref.82 for details), are upregulated with age.”

    From COVID-19 and cellular senescence (2023) · cites this paper as [82]

  • ROS increase with age because of mitochondrial dysfunction and inflammation, can drive NLRP3 inflammasome activation, and likely contribute further to COVID-19 pathophysiology in the elderly.

    “ROS increase with age due to mitochondrial dysfunction and inflammation, and can also drive NLRP3 inflammasome activation, likely further contributing to COVID-19 pathophysiology in the elderly58,76,77.”

    From SARS-CoV-2, COVID-19 and the aging immune system (2021) · cites this paper as [76]

  • Monocytes from older COVID-19 patients are enriched for an IFNγ response and for expression of TNFα, IL-1β and CXCL8.

    “mass cytometry and single cell RNA-seq analysis of monocytes from older COVID-19 patients showed they were enriched for IFNγ response, and the expression of TNFα, IL-1β, and CXCL876.”

    From SARS-CoV-2, COVID-19 and the aging immune system (2021) · cites this paper as [76]

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Authors
Zheng, Y., Liu, X., Le, W., Xie, L., Li, H., Wen, W., Wang, S., Ma, S., Huang, Z., Ye, J., Shi, W., Ye, Y., Liu, Z., Song, M., Zhang, W., Han, J.-D. J., Belmonte, J. C. I., Xiao, C., Qu, J., Wang, H., Liu, G.-H., & Su, W.
Affiliations
  • Sun Yat-sen University (CN)
  • Wuhan Hankou Hospital (CN)
  • Second Military Medical University (CN)
  • Capital Medical University (CN)
  • Chinese Academy of Sciences (CN)
  • Peking University (CN)
Corresponding author
  • Qu, Jing
  • Wang, Hongyang
  • Liu, Guang-Hui
  • Su, Wenru
Venue
Protein & Cell
Published
2020-08-11
Volume
11
Issue
10
Pages
740-770
ISSN
  • 1674-800X (ISSN-L)
  • 1674-8018
OpenAlex
W3048745453
Cited by
270
References
53
Citations by year
2026: 18 · 2025: 29 · 2024: 55 · 2023: 39 · 2022: 49 · 2021: 64 · 2020: 16
FWCI
13.62
Type
journal article
Language
en
Open access
Locations
  • Protein & Cell (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
Keywords
aging, COVID-19 pandemic, SARS-CoV-2 susceptibility, circulating immune cells, T cell exhaustion, regulatory T cells, natural killer cells, age-associated B cells, inflammatory monocytes, cellular senescence, inflammation, immune reprogramming, older adults
MeSH terms
Betacoronavirus, Cytokine Release Syndrome, COVID-19, SARS-CoV-2, Adult, Aged, Aged, 80 and over, Aging, Disease Susceptibility, Flow Cytometry, Humans, Immune System, Immunocompetence, Inflammation, Middle Aged, Pneumonia, Viral, Mass Spectrometry, Gene Rearrangement, CD4-Positive T-Lymphocytes, Cytokines, Sequence Analysis, RNA, Coronavirus Infections, Gene Expression Regulation, Developmental, Cell Lineage, Gene Expression Profiling, Chromatin Assembly and Disassembly, Young Adult, Pandemics, Single-Cell Analysis, Transcriptome

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