Evidence map›Paper›PMID 34045884›Full record

ArticleJournal of inflammation research2021

In vivo and in vitro Evaluation of Cytokine Expression Profiles During Middle East Respiratory Syndrome Coronavirus (MERS-CoV) Infection.

Ayman Mubarak, Bahauddeen Alrfaei, Abdullah Aljurayyan, Mahfoudh M Alqafil, Mohamed A Farrag, Maaweya E Hamed, Bandar Alosaimi, Fahad Almajhdi, Wael Alturaiki

Open access · goldAbstract read
In one paragraph

Article in Journal of inflammation research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.5field-weighted citation impact, top 34% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Combination ofJournal of cardiovascular development and disease · 2022
    Article
  5. Immunomodulation and immunotherapeutics of COVID-19.Clinical immunology (Orlando, Fla.) · 2021
    Review
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

9 authors at 4 institutions in 1 country.

Ayman MubarakDepartment of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.ORCID 0000-0003-4948-5574
Bahauddeen AlrfaeiStem Cells Unit, Department of Cellular Therapy, King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Science, MNGHA, Riyadh, Saudi Arabia.
Abdullah AljurayyanImmunology and HLA Department, Pathology and Laboratory Medicine, King Fahad Medical City, Riyadh, Saudi Arabia.
Mahfoudh M AlqafilDepartment of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
Mohamed A FarragDepartment of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
Maaweya E HamedDepartment of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
Bandar AlosaimiResearch Center, King Fahad Medical City, Riyadh, Saudi Arabia.ORCID 0000-0003-4719-2655
Fahad AlmajhdiDepartment of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
Wael AlturaikiDepartment of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah, 11952, Saudi Arabia.
King Saud University · SAKing Fahd Medical City · SAKing Saud bin Abdulaziz University for Health Sciences · SAMajmaah University · SA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMiddle East respiratory syndrome coronavirus (MERS-CoV) first emerged in the Kingdom of Saudi Arabia, is associated with a high mortality rate.

aimTo determine the effect of MERS-CoV on the immune response in infected patients and investigate cytokine production in the A549 epithelial cell line in response to a recombinant MERS-CoV spike protein (rSP) in the presence or absence of anti-dipeptidyl peptidase 4 (DPP4) antibody (3 independent experiments). Cytokine levels were measured using a cytokine ELISA array.

methodsA Bio-Plex multiplex assay and cytokine ELISA were used in our study to measure the cytokine levels.

resultsComparative analysis of MERS-CoV-infected patients (4 samples) and noninfected healthy controls (HCs) (5 samples) showed that serum levels of the following cytokines and chemokines were significantly higher in MERS-CoV patients than in the HCs (*p < 0.05): interferon (IFN)-α2 (43.4 vs 5.4), IFN-β (17.7 vs 6.2), IFN-γ (43.4 vs 9.7), interleukin (IL)-8 (13.7 vs 0), IL-2 (11.2 vs 3), IL-27p28 (57.8 vs 13.8), and IL-35 (167.5 vs 87.5). DISCUSSION: Our results revealed that MERS-CoV infection induced a slight increase in IFN levels but triggered a more pronounced increase in expression of the regulatory cytokines IL-27 and IL-35. A recombinant version of the full-length MERS-CoV spike protein increased the expression of IL-8 (160 pg/mL), IL-2 (100 pg/mL) and IL-12 (65 pg/mL) in A549 lung epithelial cells compared to that in the unstimulated control cells. The presence of anti-DPP4 antibody did not affect cytokine suppression or induction in A549 cells in vitro but decreased the level of IL-8 from 160 pg/mL to 65 pg/mL.

conclusionMERS-CoV can decrease IFN levels to interfere with the IFN pathway and enhance the production of regulatory cytokines. Inhibition of the increases in IL-27 and IL-35 may contribute to halting MERS-CoV in the early stage of infection.

Indexed as

A549 lung cellsanti-DPP4IFNsMERS-CoVproinflammatory cytokinesregulatory cytokines

Identifiers

PMID34045884
PMCPMC8149276
OpenAlexW3162355656

What OpenQuestion holds

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LicenceCC BY-NC
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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.