Evidence map›Paper›PMID 36589720›Full record

ArticleHeliyon2023

Association between the expression of toll-like receptors, cytokines, and homeostatic chemokines in SARS-CoV-2 infection and COVID-19 severity.

Wael Alturaiki, Haitham Alkadi, Saad Alamri, Maaweya E Awadalla, Abdulkarim Alfaez, Ayman Mubarak, Mona Awad Alanazi, Faris Q Alenzi, Brian F Flanagan, Bandar Alosaimi

Open access · goldAbstract read
In one paragraph

Article in Heliyon, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.4field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. COVID-19, the disease that changed the world.Medicine and pharmacy reports · 2026
    Review
  3. Potential relationships between circulating gene expression ofJournal of Zhejiang University. Science. B · 2025
    Article
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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

10 authors at 7 institutions in 3 countries.

Wael AlturaikiDepartment of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah, Saudi Arabia.
Haitham AlkadiResearch Center, Riyadh Second Health Cluster, King Fahad Medical City, Riyadh, Saudi Arabia.
Saad AlamriDepartment of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah, Saudi Arabia.
Maaweya E AwadallaResearch Center, Riyadh Second Health Cluster, King Fahad Medical City, Riyadh, Saudi Arabia.
Abdulkarim AlfaezDepartment of Pathology, Immunology and Laboratory, College of Medicine, University of Florida, Gainesville, Florida, 32610, USA.
Ayman MubarakDepartment of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
Mona Awad AlanaziPrince Mohammed Bin Abdulaziz Hospital, Riyadh Second Health Cluster, Ministry of Health, Riyadh, Saudi Arabia.
Faris Q AlenziDepartment of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Alkharj, Saudi Arabia.
Brian F FlanaganDepartment of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Alder Hey Children's NHS Foundation Trust Hospital, Eaton Road, Liverpool L12 2AP, UK.
Bandar AlosaimiResearch Center, Riyadh Second Health Cluster, King Fahad Medical City, Riyadh, Saudi Arabia.
King Fahd Medical City · SAMajmaah University · SAKing Saud University · SAPrince Mohammed bin Abdulaziz Hospital · SAPrince Sattam Bin Abdulaziz University · SAUniversity of Florida · USUniversity of Liverpool · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The recent identification of the involvement of the immune system response in the severity and mortality of acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection highlights the importance of cytokines and chemokines as important factors in the clinical outcomes of COVID-19. However, the impact and roles of the BAFF/APRIL cytokine system, homeostatic chemokines (CXCL12, CXCL13, CCL19, and CCL21), as well as Toll-like receptor (TLR)-3/4 in COVID-19, have not been investigated. We sought to assess the expression levels and roles of TLR3/4, BAFF, APRIL, IFN-β, homeostatic chemokines (CXCL12, CXCL13, CCL19, and CCL21), SARS-CoV-2 IgG and IgM antibodies in patients with critical (ICU) and non-ICU (mild) COVID-19 and their association with mortality and disease severity. Significant high levels of TLR-4 mRNA, IFN-β, APRIL, CXCL13, and IgM and IgG antibodies were observed in ICU patients with severe COVID-19 compared to non-ICU COVID-19 patients and healthy controls. On the other hand, BAFF and CCL21 expression were significantly upregulated in non-ICU patients with COVID-19 compared with that in critical COVID-19 patients. The two groups did not differ in TLR-3, CXCL12, and CCL19 levels. Our findings show high expression levels of some inflammatory chemokines in ICU patients with COVID-19. These findings highlight the potential utility of chemokine antagonists as an immune-based treatment for the severe form of COVID-19. We also believe that selective targeting of TLR/spike protein interactions might lead to the development of a new COVID-19 therapy.

Indexed as

COVID-19 severityCytokinesHomeostatic chemokinesSARS-CoV-2Toll-like receptors

Identifiers

PMID36589720
PMCPMC9788851
OpenAlexW4312112718

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.