Evidence map›Paper›PMID 19451286›Full record

ArticleAntimicrobial agents and chemotherapy2009

Cyclosporine inhibits flavivirus replication through blocking the interaction between host cyclophilins and viral NS5 protein.

Min Qing, Feng Yang, Bo Zhang, Gang Zou, John M Robida, Zhiming Yuan, Hengli Tang, Pei-Yong Shi

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
3.0field-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

81 citing papers in PubMed, 132 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Host centric drug repurposing for viral diseases.PLoS computational biology · 2025
    Article
  7. Functional Roles and Host Interactions ofPathogens (Basel, Switzerland) · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Observational
  12. Article
  13. A Scoping Review of Arthropod-Borne Flavivirus Infections in Solid Organ Transplant Recipients.Transplant infectious disease : an official journal of the Transplantation Society · 2024
    Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Non-Immunosuppressive Cyclophilin Inhibitors.Angewandte Chemie (International ed. in English) · 2022
    Review
  19. Review
  20. The Cyclophilin-Dependent Calcineurin Inhibitor Voclosporin Inhibits SARS-CoV-2 Replication in Cell Culture.Transplant international : official journal of the European Society for Organ Transplantation · 2022
    Article

21 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 2 countries.

Min QingState Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China.
Feng Yang
Bo Zhang
Gang Zou
John M Robida
Zhiming Yuan
Hengli Tang
Pei-Yong Shi
New York State Department of Health · USFlorida State University · USChinese Academy of Sciences · CN

Funding

Viral Pathogenesis and TherapeuticsU54AI057158 · NIAID · WADSWORTH CENTER · PI LIPKIN, W. IAN · 2003 to 2014
$100.8M
Identifying inhibitors of West Nile and dengue virusesU01AI061193 · NIAID · WADSWORTH CENTER · PI KRAMER, LAURA D · 2004 to 2008
$1.6M
Cyclosporine, Cyclophilins and HCV ReplicationR01AI079150 · NIAID · FLORIDA STATE UNIVERSITY · PI TANG, HENGLI · 2009 to 2012
$1.3M
US BASED COLLABORATION IN EMERGING VIRAL AND PRION DISEASES-266025490N01AI025490 · NIAID · HEALTH RESEARCH, INC. · 2003 to 2004
–
NIAID NIH HHS 1U01AI061193NIAID NIH HHS N01 AI025490NIAID NIH HHS R01 AI079150NIAID NIH HHS U01 AI061193NIAID NIH HHS U54 AI057158NIAID NIH HHS U54-AI057158
6 · The paper itself

Abstract

Although flaviviruses cause significant human diseases, no effective therapy is currently available. Host factors essential for viral replication are potential targets for antiviral development. Here we report that cyclophilins (CyPs), a family of cellular peptidyl-prolyl isomerases (PPIases), play a role in flavivirus replication. Huh-7.5 cells with knockdown of different isoforms of CyP were less efficient than parental cells in supporting flavivirus replication, including West Nile virus (WNV), dengue virus, and yellow fever virus. The low viral replication in CyP A (CyPA) knockdown cells could be rescued by trans supplying of a wild-type CyPA but not by trans supplying of a mutant CyPA (defective in the PPIase activity), indicating that the isomerase activity of CyPA is critical for viral replication. Immunoprecipitation and biochemical pulldown analyses showed that CyPA interacts with WNV genomic RNA and viral NS5 protein in the replication complex. Furthermore, antiviral experiments demonstrated that cyclosporine (Cs; an 11-amino-acid cyclic peptide known to block the PPIase activity of CyPA) inhibits flavivirus replication in cell culture at nontoxic concentrations. Time-of-addition and transient replicon results indicated that Cs inhibits flavivirus at the step of viral RNA synthesis. Biochemical analysis showed that Cs directly blocks the interaction between CyPA and WNV NS5 protein. Our results suggest that host CyPA is a component of flavivirus replication complex and could be targeted for potential antiviral development.

Indexed as

Antiviral AgentsCell LineCyclophilinsCyclosporineFlavivirusHumansProtein BindingViral ProteinsVirus ReplicationAntiviral AgentsCyclophilinsCyclosporineViral Proteins

Identifiers

PMID19451286
PMCPMC2715601
OpenAlexW2117119827

What OpenQuestion holds

Textmetadata
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.