Evidence map›Paper›PMID 33194755›Full record

ArticleFrontiers in oncology2020

COVID-19-Induced Modifications in the Tumor Microenvironment: Do They Affect Cancer Reawakening and Metastatic Relapse?

Federica Francescangeli, Maria Laura De Angelis, Marta Baiocchi, Rachele Rossi, Mauro Biffoni, Ann Zeuner

Abstract read
In one paragraph

Article in Frontiers in oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
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

26 citing papers in PubMed.

  1. Type I interferons induced upon respiratory viral infection impair lung metastatic initiation.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  7. Editorial: Dormant Cancer Cells, Cancer Progression, and Post-Acute Sequelae of COVID-19 and Influenza.Medical science monitor : international medical journal of experimental and clinical research · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Federica FrancescangeliDepartment of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy.
Maria Laura De AngelisDepartment of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy.
Marta BaiocchiDepartment of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy.
Rachele RossiDepartment of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy.
Mauro BiffoniDepartment of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy.
Ann ZeunerDepartment of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Severe coronavirus disease 2019 (COVID-19) causes an uncontrolled activation of the innate immune response, resulting in acute respiratory distress syndrome and systemic inflammation. The effects of COVID-19-induced inflammation on cancer cells and their microenvironment are yet to be elucidated. Here, we formulate the hypothesis that COVID-19-associated inflammation may generate a microenvironment favorable to tumor cell proliferation and particularly to the reawakening of dormant cancer cells (DCCs). DCCs often survive treatment of primary tumors and populate premetastatic niches in the lungs and other organs, retaining the potential for metastatic outgrowth. DCCs reawakening may be promoted by several events associated to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, including activation of neutrophils and monocytes/macrophages, lymphopenia and an uncontrolled production of pro-inflammatory cytokines. Among pro-inflammatory factors produced during COVID-19, neutrophil extracellular traps (NETs) released by activated neutrophils have been specifically shown to activate premetastatic cancer cells disseminated in the lungs, suggesting they may be involved in DCCs reawakening in COVID-19 patients. If confirmed by further studies, the links between COVID-19, DCCs reactivation and tumor relapse may support the use of specific anti-inflammatory and anti-metastatic therapies in patients with COVID-19 and an active or previous cancer.

Indexed as

cancercoronavirus disease 2019disseminated tumor cellsdormancyinflammationrelapsetumor microenvironment

Identifiers

PMID33194755
PMCPMC7649335

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Registered trials

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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.