ArticleImmunity2021
Early IFN-α signatures and persistent dysfunction are distinguishing features of NK cells in severe COVID-19.
Article in Immunity, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 157 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
157 citing papers in PubMed, 1 synthesis or guideline pooled it, 251 citations in OpenAlex.
- Gut distress and interventionFrontiers in public health · 2023Pooled it
- Dynamic transcriptional immune landscape in response to NK-cell therapy combined with gemcitabine plus S-1 in advanced pancreatic cancer: a phase 1b/2 trial.Signal transduction and targeted therapy · 2025Trial
- Spatial transcriptomics unveils the in situ cellular and molecular hallmarks of the lung in fatal COVID-19.Nature communications · 2026Article
- Dynamic single-cell transcriptomic analysis of peripheral blood mononuclear cells identifies novel biomarkers for autoimmune encephalitis.Molecular psychiatry · 2026Article
- Natural Killer Cell Assays: Clinical Applications and Future Directions.Annals of laboratory medicine · 2026Review
- Immune dysregulation in prolonged Long-COVID: lymphocytes emerge as key mediators of persistent inflammation, exhaustion and cytotoxicity.Journal of translational medicine · 2026Article
- Elevated ANG2/ACE2 and immune responses associated with Plasmodium falciparum and SARS-CoV-2 coinfection in Cameroon.PLOS global public health · 2026Article
- Dysregulated NK-cell gene expression defines the enduring symptoms of long COVID-19.Frontiers in immunology · 2026Article
- Integrating mechanical cues inFrontiers in immunology · 2026Review
- Exosomes in Cancer Biology: Emerging Biomarkers and Therapeutic Targets.Journal of Cancer · 2026Review
- Clinical and Immunological Recovery Trajectories in Severe COVID-19 Survivors: A 12-Month Prospective Follow-Up Study.Viruses · 2025Article
- Single-cell analysis unravels the role of NK cells and monocytes in the control of SARS-CoV-2 breakthrough infections in vaccinated individuals.Human vaccines & immunotherapeutics · 2025Article
- Interferon-mediated NK cell activation increases cytolytic activity against T follicular helper cells and limits antibody response to SARS-CoV-2.Nature immunology · 2025Article
- Anti-SARS-CoV-2 antibodies from severe COVID-19 individuals or S2 immunizations do not worsen disease in hamsters.Communications biology · 2025Article
- Mapping NK cell diversity in response to COVID-19 and mRNA vaccination.Scientific reports · 2025Article
- NK-derived exosomes in anti-tumor strategies.Medical oncology (Northwood, London, England) · 2025Review
- MICBG406A polymorphism reduces risk of mechanical ventilation and death during viral acute lung injury.JCI insight · 2025Article
- Deciphering state-dependent immune features from multi-layer omics data at single-cell resolution.Nature genetics · 2025Article
- Ageing and dysregulated lung immune responses in fatal COVID-19.Immunity & ageing : I & A · 2025Article
- Article
97 more citing papers are in PubMed but not listed here.
Corrections and comments
- Commented on by
Authors and funding
49 authors at 16 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Longitudinal analyses of the innate immune system, including the earliest time points, are essential to understand the immunopathogenesis and clinical course of coronavirus disease (COVID-19). Here, we performed a detailed characterization of natural killer (NK) cells in 205 patients (403 samples; days 2 to 41 after symptom onset) from four independent cohorts using single-cell transcriptomics and proteomics together with functional studies. We found elevated interferon (IFN)-α plasma levels in early severe COVD-19 alongside increased NK cell expression of IFN-stimulated genes (ISGs) and genes involved in IFN-α signaling, while upregulation of tumor necrosis factor (TNF)-induced genes was observed in moderate diseases. NK cells exert anti-SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) activity but are functionally impaired in severe COVID-19. Further, NK cell dysfunction may be relevant for the development of fibrotic lung disease in severe COVID-19, as NK cells exhibited impaired anti-fibrotic activity. Our study indicates preferential IFN-α and TNF responses in severe and moderate COVID-19, respectively, and associates a prolonged IFN-α-induced NK cell response with poorer disease outcome.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.