Evidence map›Paper›PMID 35475646›Full record

ArticlemBio2022

Temsavir Treatment of HIV-1-Infected Cells Decreases Envelope Glycoprotein Recognition by Broadly Neutralizing Antibodies.

Marianne Boutin, Dani Vézina, Shilei Ding, Jérémie Prévost, Annemarie Laumaea, Lorie Marchitto, Sai Priya Anand, Halima Medjahed, Gabrielle Gendron-Lepage, Catherine Bourassa and 4 more

Open access · goldAbstract read
In one paragraph

Article in mBio, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.5field-weighted citation impact, top 34% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
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

14 authors at 3 institutions in 2 countries.

Marianne BoutinCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.
Dani VézinaCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.ORCID 0000-0002-0780-8593
Shilei DingCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.
Jérémie PrévostCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.
Annemarie LaumaeaCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.
Lorie MarchittoCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.
Sai Priya AnandDepartment of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada.
Halima MedjahedCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.
Gabrielle Gendron-LepageCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.
Catherine BourassaCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.
Guillaume GoyetteCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.
Andrew ClarkViiV Healthcare, Global Medical Affairs, Middlesex, United Kingdom.
Jonathan RichardCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.
Andrés FinziCentre de Recherche du CHUM (CRCHUM), Montreal, Quebec, Canada.ORCID 0000-0002-4992-5288
Centre Hospitalier de l’Université de Montréal · CAMcGill University · CAViiV Healthcare (United Kingdom) · GB

Funding

ERASE HIV: Enterprise for Research and Advancements to Stop and Eradicate HIVUM1AI164562 · NIAID · EMORY UNIVERSITY · PI Deanna A Kulpa, Mirko Paiardini · 2021 to 2026
$30.0M
Exploring HIV-1 Env open conformations for therapeutic interventionR01AI150322 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI Andres Finzi, James B Munro · 2020 to 2026
$4.2M
Assessing ADCC and Fc-mediated Protection against HIVR01AI148379 · NIAID · UNIVERSITY OF WISCONSIN-MADISON · PI EVANS, DAVID T, FINZI, ANDRES · 2019 to 2023
$3.8M
Unlocking Envelope: A New Strategy for a Functional Cure Through Antibody-Dependent Cell-Mediated CytotoxicityR01AI129769 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI PAZGIER, MARZENA ELZBIETA · 2017 to 2021
$2.3M
CIHR 352417CIHR 422148NIAID NIH HHS R01 AI129769NIAID NIH HHS R01 AI148379NIAID NIH HHS R01 AI150322NIAID NIH HHS UM1 AI164562
6 · The paper itself

Abstract

The heavily glycosylated HIV-1 envelope glycoprotein (Env) is the sole viral antigen present at the surface of virions and infected cells, representing the main target for antibody responses. The FDA-approved small molecule temsavir acts as an HIV-1 attachment inhibitor by preventing Env-CD4 interaction. This molecule also stabilizes Env in a prefusion "closed" conformation that is preferentially targeted by several broadly neutralizing antibodies (bNAbs). A recent study showed that an analog of temsavir (BMS-377806) affects the cleavage and addition of complex glycans on Env. In this study, we investigated the impact of temsavir on the overall glycosylation, proteolytic cleavage, cell surface expression, and antigenicity of Env. We found that temsavir impacts Env glycosylation and processing at physiological concentrations. This significantly alters the capacity of several bNAbs to recognize Env present on virions and HIV-1-infected cells. Temsavir treatment also reduces the capacity of bNAbs to eliminate HIV-1-infected cells by antibody-dependent cellular cytotoxicity (ADCC). Consequently, the impact of temsavir on Env glycosylation and antigenicity should be considered for the development of new antibody-based approaches in temsavir-treated individuals.

Indexed as

Anti-HIV AgentsHIV-1HIV InfectionsHIV SeropositivityAntibodies, NeutralizingBroadly Neutralizing Antibodiesenv Gene Products, Human Immunodeficiency VirusGlycoproteinsHIV AntibodiesHIV Envelope Protein gp120HumansPolysaccharidesAntibodies, NeutralizingAnti-HIV AgentsBroadly Neutralizing Antibodiesenv Gene Products, Human Immunodeficiency VirusGlycoproteinsHIV AntibodiesHIV Envelope Protein gp120PolysaccharidesADCCantibody-dependent cellular cytotoxicityattachment inhibitorsBMS-626529BMS-663068bNAbsbroadly neutralizing antibodiesentry inhibitorsEnv cleavageEnv glycoproteinfostemsavirglycosylationHIV-1proteolytic cleavagetemsavir

Identifiers

PMID35475646
PMCPMC9239219
OpenAlexW4225012676

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.