Evidence map›Paper›PMID 34921131›Full record

ArticleSignal transduction and targeted therapy2021

SARS-CoV-2-triggered mast cell rapid degranulation induces alveolar epithelial inflammation and lung injury.

Meng-Li Wu, Feng-Liang Liu, Jing Sun, Xin Li, Xiao-Yan He, Hong-Yi Zheng, Yan-Heng Zhou, Qihong Yan, Ling Chen, Guo-Ying Yu and 6 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Signal transduction and targeted therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 55 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 3% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

55 citing papers in PubMed, 1 synthesis or guideline pooled it, 82 citations in OpenAlex.

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  15. Transfusion-Related Acute Lung Injury: from Mechanistic Insights to Therapeutic Strategies.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 5 institutions in 1 country.

Meng-Li WuCollege of Life Science, Henan Normal University, Xinxiang, 453007, China.
Feng-Liang LiuKey Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China.ORCID 0000-0002-5038-5012
Jing SunState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510182, China.
Xin LiGuangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
Xiao-Yan HeKey Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China.
Hong-Yi ZhengKey Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China.
Yan-Heng ZhouGuangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
Qihong YanGuangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
Ling ChenGuangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.
Guo-Ying YuCollege of Life Science, Henan Normal University, Xinxiang, 453007, China.
Junbiao ChangCollege of Life Science, Henan Normal University, Xinxiang, 453007, China.
Xia JinShanghai Public Health Clinical Center Affiliated to Fudan University, Shanghai, 201508, China.
Jincun ZhaoState Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510182, China.ORCID 0000-0003-2515-5589
Xin-Wen ChenGuangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China. Chen_xinwen@gibh.ac.cn.
Yong-Tang ZhengKey Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China. zhengyt@mail.kiz.ac.cn.ORCID 0000-0001-5469-0324
Jian-Hua WangGuangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China. wang_jianhua@gibh.ac.cn.
Chinese Academy of Sciences · CNKunming Institute of Zoology · CNHenan Normal University · CNFirst Affiliated Hospital of Guangzhou Medical University · CNShanghai Public Health Clinical Center · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

SARS-CoV-2 infection-induced hyper-inflammation links to the acute lung injury and COVID-19 severity. Identifying the primary mediators that initiate the uncontrolled hypercytokinemia is essential for treatments. Mast cells (MCs) are strategically located at the mucosa and beneficially or detrimentally regulate immune inflammations. In this study, we showed that SARS-CoV-2-triggered MC degranulation initiated alveolar epithelial inflammation and lung injury. SARS-CoV-2 challenge induced MC degranulation in ACE-2 humanized mice and rhesus macaques, and a rapid MC degranulation could be recapitulated with Spike-RBD binding to ACE2 in cells; MC degranulation altered various signaling pathways in alveolar epithelial cells, particularly, the induction of pro-inflammatory factors and consequential disruption of tight junctions. Importantly, the administration of clinical MC stabilizers for blocking degranulation dampened SARS-CoV-2-induced production of pro-inflammatory factors and prevented lung injury. These findings uncover a novel mechanism for SARS-CoV-2 initiating lung inflammation, and suggest an off-label use of MC stabilizer as immunomodulators for COVID-19 treatments.

Indexed as

Cell DegranulationAngiotensin-Converting Enzyme 2AnimalsCell Line, TumorCOVID-19FemaleHumansLung InjuryMacaca mulattaMaleMast CellsMiceMice, Inbred BALB CMice, TransgenicPulmonary AlveoliSARS-CoV-2ACE2 protein, humanAngiotensin-Converting Enzyme 2Spike Glycoprotein, Coronavirus

Identifiers

PMID34921131
PMCPMC8677926
OpenAlexW4226031212

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.