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Revealing key regulators of neutrophil function during inflammation by re-analysing single-cell RNA-seq.
Ai, Zhichao.
  • Ai Z; China Innovation Center of Roche (CICoR), Roche R&D Center (China) Ltd, Shanghai, China.
PLoS One ; 17(10): e0276460, 2022.
Article in English | MEDLINE | ID: covidwho-2089429
ABSTRACT
Excessive neutrophil infiltration and dysfunction contribute to the progression and severity of hyper-inflammatory syndrome, such as in severe COVID19. In the current study, we re-analysed published scRNA-seq datasets of mouse and human neutrophils to classify and compare the transcriptional regulatory networks underlying neutrophil differentiation and inflammatory responses. Distinct sets of TF modules regulate neutrophil maturation, function, and inflammatory responses under the steady state and inflammatory conditions. In COVID19 patients, neutrophil activation was associated with the selective activation of inflammation-specific TF modules. SARS-CoV-2 RNA-positive neutrophils showed a higher expression of type I interferon response TF IRF7. Furthermore, IRF7 expression was abundant in neutrophils from severe patients in progression stage. Neutrophil-mediated inflammatory responses positively correlate with the expressional level of IRF7. Based on these results, we suggest that differential activation of activation-related TFs, such as IRF7 mediate neutrophil inflammatory responses during inflammation.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 / Neutrophils Type of study: Prognostic study Limits: Humans Language: English Journal: PLoS One Journal subject: Science / Medicine Year: 2022 Document Type: Article Affiliation country: Journal.pone.0276460

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 / Neutrophils Type of study: Prognostic study Limits: Humans Language: English Journal: PLoS One Journal subject: Science / Medicine Year: 2022 Document Type: Article Affiliation country: Journal.pone.0276460