Evidence map›Paper›PMID 30905842›Full record

ArticleThe ocular surface2019

Interferon-stimulated gene 15 (ISG15) restricts Zika virus replication in primary human corneal epithelial cells.

Pawan Kumar Singh, Sneha Singh, Dustin Farr, Ashok Kumar

Open access · greenAbstract read
In one paragraph

Article in The ocular surface, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
8.7field-weighted citation impact, top 2% 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

43 citing papers in PubMed, 63 citations in OpenAlex.

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  8. Identification of AMOTL2 as an antiviral factor that enhances the human type I interferon response against Zika virus.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Review
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  11. An Overview of Zika Virus and Zika Virus Induced Neuropathies.International journal of molecular sciences · 2024
    Review
  12. Article
  13. Review
  14. Article
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  20. The Innate Defense in the Zika-Infected Placenta.Pathogens (Basel, Switzerland) · 2022
    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

4 authors at 1 institution in 1 country.

Pawan Kumar SinghDepartment of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, Detroit, MI, USA.
Sneha SinghDepartment of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, Detroit, MI, USA.
Dustin FarrDepartment of Biochemistry, Microbiology and Immunology, Wayne State University, Detroit, MI, USA.
Ashok KumarDepartment of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, Detroit, MI, USA; Department of Biochemistry, Microbiology and Immunology, Wayne State University, Detroit, MI, USA. Electronic address: akuma@med.wayne.edu.
Wayne State University · US

Funding

VISION RESEARCH--COREP30EY004068 · NEI · WAYNE STATE UNIVERSITY · PI LINDA D HAZLETT · 1985 to 2026
$13.2M
Targeting NAD metabolism to ameliorate bacterial endophthalmitisR01EY026964 · NEI · WAYNE STATE UNIVERSITY · PI Ashok Kumar · 2017 to 2026
$3.7M
Mechanisms of Inflammation Resolution in Bacterial EndophthalmitisR01EY027381 · NEI · WAYNE STATE UNIVERSITY · PI Ashok Kumar · 2017 to 2026
$3.3M
Role of ABCG1 in Zika virus induced chorioretinal atrophyR21AI135583 · NIAID · WAYNE STATE UNIVERSITY · PI KUMAR, ASHOK · 2018 to 2019
$424k
NEI NIH HHS P30 EY004068NEI NIH HHS R01 EY026964NEI NIH HHS R01 EY027381NIAID NIH HHS R21 AI135583
6 · The paper itself

Abstract

purposeZika virus (ZIKV) has emerged as an important human pathogen causing ocular complications. There have been reports of the shedding of ZIKV in human as well as animal tears. In this study, we investigated the infectivity of ZIKV in corneal epithelial cells and their antiviral immune response.

methodsPrimary human corneal epithelial cells (Pr. HCECs) and an immortalized cell line (HUCL) were infected with two different strains of ZIKV (PRVABC59 & BeH823339) or dengue virus (DENV, serotypes 1-4). Viral infectivity was assessed by immunostaining of viral antigen and plaque assay. qRT-PCR and immunoblot analyses were used to assess the expression of innate inflammatory and antiviral genes. Supplementation of recombinant ISG15 (rISG15) and gene silencing approaches were used to elucidate the role of ISG15 in corneal antiviral defense.

resultsPr. HCECs, but not the HUCL cells, were permissive to both ZIKV strains and specifically to DENV3 infection. ZIKV induced the expression of viral recognition receptors (TLR3, RIG-I, &MDA5), and genes involved in inflammatory (CXCL10 & CCL5) and antiviral (IFNs, MX1, OAS2, ISG15) responses in Pr. HCECs. Furthermore, ZIKV infection caused Pr. HCECs cell death, as evidenced by TUNEL staining. Silencing of ISG15 increased ZIKV infectivity while supplementation with rISG15 reduced ZIKV infection by direct inactivation of ZIKV and inhibiting its entry.

conclusionsOur study demonstrates for the first time, that ZIKV can readily infect and replicate in Pr. HCECs. Therefore, ZIKV may persist in the cornea and pose the potential risk of transmission via corneal transplantation.

Indexed as

AnimalsAntiviral AgentsCells, CulturedCytokinesEpithelium, CornealEye Infections, ViralHumansImmunoblottingInterferonsRNAUbiquitinsVirus ReplicationZika VirusZika Virus InfectionAntiviral AgentsCytokinesInterferonsISG15 protein, humanRNAUbiquitinsAntiviralCorneaDengue virusInnate immune responseISG15Zika virus

Identifiers

PMID30905842
PMCPMC6708474
OpenAlexW2925034081

What OpenQuestion holds

Textmetadata
LicenceTDM
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.