Evidence map›Paper›PMID 33521067›Full record

ArticleFrontiers in cardiovascular medicine2020

Generation of SARS-CoV-2 Spike Pseudotyped Virus for Viral Entry and Neutralization Assays: A 1-Week Protocol.

Jose Manuel Condor Capcha, Guerline Lambert, Derek M Dykxhoorn, Alessandro G Salerno, Joshua M Hare, Michael A Whitt, Savita Pahwa, Dushyantha T Jayaweera, Lina A Shehadeh

Open access · goldAbstract read
In one paragraph

Article in Frontiers in cardiovascular medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing 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

53 citing papers in PubMed, 1 synthesis or guideline pooled it, 84 citations in OpenAlex.

  1. Pooled it
  2. Deep learning-driven 3-D histopathology method: a pipeline for cellular-resolution myocarditis analysis.American journal of physiology. Heart and circulatory physiology · 2026
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  8. Influence of Sex and 1,25α Dihydroxyvitamin DPathogens (Basel, Switzerland) · 2025
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  12. Review
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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

9 authors at 3 institutions in 1 country.

Jose Manuel Condor CapchaDivision of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.
Guerline LambertDivision of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.
Derek M DykxhoornDr. John T. Macdonald Foundation Department of Human Genetics, John P. Hussman Institute for Human Genomics, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.
Alessandro G SalernoDivision of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.
Joshua M HareDivision of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.
Michael A WhittDepartment of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, United States.
Savita PahwaDepartment of Microbiology and Immunology, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.
Dushyantha T JayaweeraInterdisciplinary Stem Cell Institute, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.
Lina A ShehadehDivision of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, FL, United States.
University of Miami · USDr. John T. Macdonald Foundation · USUniversity of Tennessee Health Science Center · US

Funding

The Role of Osteopontin-OGDHL Axis in HFPEFR01HL140468 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI SHEHADEH, LINA A · 2018 to 2022
$1.8M
NHLBI NIH HHS R01 HL140468
6 · The paper itself

Abstract

The COVID-19 pandemic caused by the SARS-CoV-2 coronavirus requires reliable assays for studying viral entry mechanisms which remains poorly understood. This knowledge is important for the development of therapeutic approaches to control SARS-CoV-2 infection by permitting the screening for neutralizing antibodies and other agents that can block infection. This is particularly important for patients who are at high risk for severe outcomes related to COVID-19. The production of pseudotyped viral particles may seem like a daunting task for a non-virology laboratory without experience in the two most commonly used pseudotyping systems, namely retro/lentiviruses and vesicular stomatitis virus (VSV) which lacks the VSV envelope glycoprotein (VSVΔG). By incorporating the most up-to-date knowledge, we have developed a detailed, easy-to-follow novel protocol for producing SARS-CoV-2 spike-bearing pseudovirus using the VSV-ΔG system. We describe the infection assay which uses GFP fluorescence as a measure of infection in a 24-well live imaging system. We present results of our optimization of the system to enhance viral infection levels through the over-expression of human ACE2 receptor and the overexpression of at least one of two proteases - TMPRSS2 or Furin, as well as, supplementation with Poloxamer 407 (P407) and Prostaglandin E2 (PGE2) as adjuvants. We show that the system works efficiently in three unrelated, clinically relevant cell lines: human 293T (renal epithelial) cells, human Calu-3 (lung epithelial) cells, and the non-human primate (African Green Monkey) cell line, Vero-E6 (renal epithelial) cells. In addition, we have used this system to show infection of human induced pluripotent stem cell-derived cardiomyocytes (iPS-CMs). This system is efficient (virus generation, titration, and infection assays can be performed in 1 week), quantitative, inexpensive, and readily scalable for application in drug development and therapeutic screening approaches.

Indexed as

ACE2furinlentiviruspoloxamer 407prostaglandin E2pseudovirusSARS-CoV-2TMPRSS2

Identifiers

PMID33521067
PMCPMC7843445
OpenAlexW3120441706

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.