Evidence map›Paper›PMID 33844653›Full record

ArticleThe Journal of clinical investigation2021

Structure-based phylogeny identifies avoralstat as a TMPRSS2 inhibitor that prevents SARS-CoV-2 infection in mice.

Young Joo Sun, Gabriel Velez, Dylan E Parsons, Kun Li, Miguel E Ortiz, Shaunik Sharma, Paul B McCray, Alexander G Bassuk, Vinit B Mahajan

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.8field-weighted citation impact, top 12% 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

23 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. An orally available MNature communications · 2025
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  5. Article
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  7. Exploring the Therapeutic Potential ofMolecules (Basel, Switzerland) · 2024
    Article
  8. Review
  9. Article
  10. Article
  11. Small molecules in the treatment of COVID-19.Signal transduction and targeted therapy · 2022
    Review
  12. International journal of molecular sciences · 2022
    Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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.

Young Joo SunMolecular Surgery Lab, Byers Eye Institute, Department of Ophthalmology, Stanford University, Palo Alto, California, USA.
Gabriel VelezMolecular Surgery Lab, Byers Eye Institute, Department of Ophthalmology, Stanford University, Palo Alto, California, USA.
Dylan E ParsonsMolecular Surgery Lab, Byers Eye Institute, Department of Ophthalmology, Stanford University, Palo Alto, California, USA.
Kun LiDepartment of Pediatrics.
Miguel E OrtizDepartment of Pediatrics.
Shaunik SharmaDepartment of Pediatrics.
Paul B McCrayDepartment of Pediatrics.
Alexander G BassukDepartment of Pediatrics.
Vinit B MahajanMolecular Surgery Lab, Byers Eye Institute, Department of Ophthalmology, Stanford University, Palo Alto, California, USA.
Pediatrics and Genetics · USSmith-Kettlewell Eye Research Institute · USUniversity of Iowa · USVA Palo Alto Health Care System · US

Funding

Pulmonary Toxicology Facility CoreP30ES005605 · NIEHS · UNIVERSITY OF IOWA · PI Jong Sung Kim · 1990 to 2026
$40.5M
Vector Core-Core 2P30DK054759 · NIDDK · UNIVERSITY OF IOWA · PI Amy Leanne Ryan · 1998 to 2026
$30.5M
SARS-CoV Proteins in Heterologous Viral InfectionP01AI060699 · NIAID · UNIVERSITY OF IOWA · PI PERLMAN, STANLEY · 2004 to 2021
$21.5M
Multidisciplinary Lung Research Career Development ProgramT32HL007638 · NHLBI · UNIVERSITY OF IOWA · PI WELSH, MICHAEL J., ZABNER, JOSEPH · 1986 to 2020
$16.9M
MEDICAL SCIENTIST TRAINING PROGRAMT32GM007337 · NIGMS · UNIVERSITY OF IOWA · PI GEYER, PAMELA K., LENTZ, STEVEN R · 1985 to 2020
$15.9M
Stanford Vision Research CoreP30EY026877 · NEI · STANFORD UNIVERSITY · PI Jeffrey L Goldberg · 2017 to 2026
$8.0M
Medical Scientist Training ProgramT32GM139776 · NIGMS · UNIVERSITY OF IOWA · PI Gordon F Buchanan · 2021 to 2026
$6.4M
Stanford Vision Training ProgramT32EY027816 · NEI · STANFORD UNIVERSITY · PI Jeffrey L Goldberg · 2018 to 2026
$2.0M
Inflammatory Gene Transcription in the RetinaR01EY030151 · NEI · STANFORD UNIVERSITY · PI BASSUK, ALEXANDER G, MAHAJAN, VINIT B · 2020 to 2024
$2.0M
Structure and Function of Calpain-5R01EY024665 · NEI · UNIVERSITY OF IOWA · PI MAHAJAN, VINIT B · 2015 to 2019
$1.9M
Proteomic Biomarkers of Intraocular InfectionR01EY031952 · NEI · STANFORD UNIVERSITY · PI BASSUK, ALEXANDER G, FERGUSON, POLLY J · 2020 to 2023
$1.6M
NEI NIH HHS P30 EY026877NEI NIH HHS R01 EY024665NEI NIH HHS R01 EY030151NEI NIH HHS R01 EY031952NEI NIH HHS T32 EY027816NHLBI NIH HHS T32 HL007638NIAID NIH HHS P01 AI060699NIDDK NIH HHS P30 DK054759NIEHS NIH HHS P30 ES005605NIGMS NIH HHS T32 GM007337NIGMS NIH HHS T32 GM139776
6 · The paper itself

Abstract

Drugs targeting host proteins can act prophylactically to reduce viral burden early in disease and limit morbidity, even with antivirals and vaccination. Transmembrane serine protease 2 (TMPRSS2) is a human protease required for SARS coronavirus 2 (SARS-CoV-2) viral entry and may represent such a target. We hypothesized that drugs selected from proteins related by their tertiary structure, rather than their primary structure, were likely to interact with TMPRSS2. We created a structure-based phylogenetic computational tool named 3DPhyloFold to systematically identify structurally similar serine proteases with known therapeutic inhibitors and demonstrated effective inhibition of SARS-CoV-2 infection in vitro and in vivo. Several candidate compounds, avoralstat, PCI-27483, antipain, and soybean trypsin inhibitor, inhibited TMPRSS2 in biochemical and cell infection assays. Avoralstat, a clinically tested kallikrein-related B1 inhibitor, inhibited SARS-CoV-2 entry and replication in human airway epithelial cells. In an in vivo proof of principle, avoralstat significantly reduced lung tissue titers and mitigated weight loss when administered prophylactically to mice susceptible to SARS-CoV-2, indicating its potential to be repositioned for coronavirus disease 2019 (COVID-19) prophylaxis in humans.

Indexed as

COVID-19PhylogenySerine EndopeptidasesSerine Proteinase InhibitorsAnimalsChlorocebus aethiopsFemaleHEK293 CellsHumansMaleMiceSARS-CoV-2Structure-Activity RelationshipVero CellsVirus InternalizationVirus ReplicationSerine EndopeptidasesSerine Proteinase InhibitorsTMPRSS2 protein, humanTMPRSS2 protein, mouseCOVID-19Drug screensInfectious diseaseMolecular biologyProteases

Identifiers

PMID33844653
PMCPMC8121520
OpenAlexW3154016834

What OpenQuestion holds

Textmetadata
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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.