Evidence map›Paper›PMID 31484748›Full record

ArticleJournal of virology2019

CD4 Incorporation into HIV-1 Viral Particles Exposes Envelope Epitopes Recognized by CD4-Induced Antibodies.

Shilei Ding, Romain Gasser, Gabrielle Gendron-Lepage, Halima Medjahed, William D Tolbert, Joseph Sodroski, Marzena Pazgier, Andrés Finzi

Open access · hybridAbstract read
In one paragraph

Article in Journal of virology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

25 citing papers in PubMed, 39 citations in OpenAlex.

  1. HIV-1 gp120 Induces Nociceptive Hypersensitivity via α2δ-1-Bound NMDA Receptors at Primary Afferent→Excitatory Neuron Synapses.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
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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

8 authors at 5 institutions in 2 countries.

Shilei DingCentre de Recherche du CHUM, Montreal, Quebec, Canada.
Romain GasserCentre de Recherche du CHUM, Montreal, Quebec, Canada.
Gabrielle Gendron-LepageCentre de Recherche du CHUM, Montreal, Quebec, Canada.
Halima MedjahedCentre de Recherche du CHUM, Montreal, Quebec, Canada.
William D TolbertInfectious Diseases Division, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA.
Joseph SodroskiDepartment of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA.
Marzena PazgierInfectious Diseases Division, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA.
Andrés FinziCentre de Recherche du CHUM, Montreal, Quebec, Canada andres.finzi@umontreal.ca.
Centre Hospitalier de l’Université de Montréal · CAUniformed Services University of the Health Sciences · USDana-Farber Cancer Institute · USMcGill University · CAUniversité de Montréal · CA

Funding

Understanding Envelope Function in HIV-1 Infection: The Design, Synthesis and Validation of Small Molecule HIV-1 Env InhibitorsP01AI150471 · NIAID · DREXEL UNIVERSITY · PI CHAIKEN, IRWIN M · 2019 to 2022
$7.8M
Conformational Landscape of the HIV-1 Envelope GlycoproteinsR01AI124982 · NIAID · DANA-FARBER CANCER INST · PI SODROSKI, JOSEPH G · 2016 to 2025
$6.7M
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
Enrichment of the State-1 Conformation of the HIV-1 Envelope GlycoproteinR01AI145547 · NIAID · DANA-FARBER CANCER INST · PI SODROSKI, JOSEPH G · 2019 to 2021
$2.2M
Reducing viral reservoirs by opening HIV-1 Env to antibody attackR33AI129017 · NIAID · DANA-FARBER CANCER INST · PI SODROSKI, JOSEPH G · 2019 to 2021
$1.6M
Structural Targeting of Potentially Protective gp120 Epitopes in the C1/C2 RegionR01AI116274 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI PAZGIER, MARZENA ELZBIETA · 2016 to 2019
$1.5M
NIAID NIH HHS P01 AI150471NIAID NIH HHS R01 AI116274NIAID NIH HHS R01 AI124982NIAID NIH HHS R01 AI129769NIAID NIH HHS R01 AI145547NIAID NIH HHS R33 AI129017
6 · The paper itself

Abstract

CD4 downregulation on infected cells is a highly conserved function of primate lentiviruses. It has been shown to positively impact viral replication by a variety of mechanisms, including enhanced viral release and infectivity, decrease of cell reinfection, and protection from antibody-dependent cellular cytotoxicity (ADCC), which is often mediated by antibodies that require CD4 to change envelope (Env) conformation. Here, we report that incorporation of CD4 into HIV-1 viral particles affects Env conformation resulting in the exposure of occluded epitopes recognized by CD4-induced antibodies. This translates into enhanced neutralization susceptibility by these otherwise nonneutralizing antibodies but is prevented by the HIV-1 Nef accessory protein. Altogether, these findings suggest that another functional consequence of Nef-mediated CD4 downregulation is the protection of viral particles from neutralization by commonly elicited CD4-induced antibodies.

Indexed as

AnimalsAntibody-Dependent Cell CytotoxicityCD4 AntigensCD4-Positive T-LymphocytesCell LineDogsenv Gene Products, Human Immunodeficiency VirusEpitopesHEK293 CellsHIV-1HIV AntibodiesHIV Envelope Protein gp120HIV InfectionsHIV SeropositivityHumansProtein BindingCD4 Antigensenv Gene Products, Human Immunodeficiency VirusEpitopesHIV AntibodiesHIV Envelope Protein gp120Viral Envelope ProteinsCD4CD4-induced antibodiescold inactivationEnvEnv conformationHIV-1incorporationneutralizationnonneutralizing antibodiesvirus capture assay

Identifiers

PMID31484748
PMCPMC6819941
OpenAlexW2972288169

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.