Evidence map›Paper›PMID 32117246›Full record

ArticleFrontiers in immunology2020

Citrullination Alters the Antiviral and Immunomodulatory Activities of the Human Cathelicidin LL-37 During Rhinovirus Infection.

Víctor Casanova, Filipa Henderson Sousa, Priyanka Shakamuri, Pavel Svoboda, Chloé Buch, Mathilde D'Acremont, Maria A Christophorou, Jan Pohl, Craig Stevens, Peter G Barlow

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 4% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
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  6. Immune Modulatory Effects of Vitamin D on Herpesvirus Infections.International journal of molecular sciences · 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

10 authors at 3 institutions in 2 countries.

Víctor CasanovaSchool of Applied Sciences, Edinburgh Napier University, Edinburgh, United Kingdom.
Filipa Henderson SousaSchool of Applied Sciences, Edinburgh Napier University, Edinburgh, United Kingdom.
Priyanka ShakamuriBiotechnology Core Facility Branch, Division of Scientific Resources, US Centers for Disease Control and Prevention, Atlanta, GA, United States.
Pavel SvobodaBiotechnology Core Facility Branch, Division of Scientific Resources, US Centers for Disease Control and Prevention, Atlanta, GA, United States.
Chloé BuchSchool of Applied Sciences, Edinburgh Napier University, Edinburgh, United Kingdom.
Mathilde D'AcremontSchool of Applied Sciences, Edinburgh Napier University, Edinburgh, United Kingdom.
Maria A ChristophorouMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, University of Edinburgh, Edinburgh, United Kingdom.
Jan PohlBiotechnology Core Facility Branch, Division of Scientific Resources, US Centers for Disease Control and Prevention, Atlanta, GA, United States.
Craig StevensSchool of Applied Sciences, Edinburgh Napier University, Edinburgh, United Kingdom.
Peter G BarlowSchool of Applied Sciences, Edinburgh Napier University, Edinburgh, United Kingdom.
Edinburgh Napier University · GBCenters for Disease Control and Prevention · USWestern General Hospital · GB

Funding

Chief Scientist Office ETM/389
6 · The paper itself

Abstract

Human rhinoviruses (HRV) are the most common cause of viral respiratory tract infections. While normally mild and self-limiting in healthy adults, HRV infections are associated with bronchiolitis in infants, pneumonia in immunocompromised patients, and exacerbations of asthma and COPD. The human cathelicidin LL-37 is a host defense peptide (HDP) with broad immunomodulatory and antimicrobial activities that has direct antiviral effects against HRV. However, LL-37 is known to be susceptible to the enzymatic activity of peptidyl arginine deiminases (PAD), and exposure of the peptide to these enzymes results in the conversion of positively charged arginines to neutral citrullines (citrullination). Here, we demonstrate that citrullination of LL-37 reduced its direct antiviral activity against HRV. Furthermore, while the anti-rhinovirus activity of LL-37 results in dampened epithelial cell inflammatory responses, citrullination of the peptide, and a loss in antiviral activity, ameliorates this effect. This study also demonstrates that HRV infection upregulates PAD2 protein expression, and increases levels of protein citrullination, including histone H3, in human bronchial epithelial cells. Increased

Indexed as

CitrullinationRhinovirusBronchiCathelicidinsCell LineCytokinesEpithelial CellsHumansPeptide FragmentsPicornaviridae InfectionsPoly I-CProtein-Arginine Deiminase Type 2cathelicidin LL-37 (18-29), humanCathelicidinsCytokinesPADI2 protein, humanPeptide FragmentsPoly I-CProtein-Arginine Deiminase Type 2cathelicidincitrullinationinflammationLL-37peptiderhinovirusvirus

Identifiers

PMID32117246
PMCPMC7010803
OpenAlexW3005305934

What OpenQuestion holds

Textmetadata
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.