Evidence map›Paper›PMID 21539734›Full record

ArticleRetrovirology2011

Antiviral activity of α-helical stapled peptides designed from the HIV-1 capsid dimerization domain.

Hongtao Zhang, Francesca Curreli, Xihui Zhang, Shibani Bhattacharya, Abdul A Waheed, Alan Cooper, David Cowburn, Eric O Freed, Asim K Debnath

Open access · goldAbstract read
In one paragraph

Article in Retrovirology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

35 citing papers in PubMed, 63 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Leveraging the therapeutic, biological, and self-assembling potential of peptides for the treatment of viral infections.Journal of controlled release : official journal of the Controlled Release Society · 2022
    Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Viruses go modular.The Journal of biological chemistry · 2020
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Ebselen, a Small-Molecule Capsid Inhibitor of HIV-1 Replication.Antimicrobial agents and chemotherapy · 2016
    Article
  19. Review
  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 5 institutions in 2 countries.

Hongtao ZhangLaboratory of Molecular Modeling & Drug Design; Lindsley F, Kimball Research Institute of the New York Blood Center, 310 E 67th Street, New York, NY 10065, USA.
Francesca Curreli
Xihui Zhang
Shibani Bhattacharya
Abdul A Waheed
Alan Cooper
David Cowburn
Eric O Freed
Asim K Debnath
New York Blood Center · USNational Cancer Institute · USAlbert Einstein College of Medicine · USNew York Structural Biology Center · USUniversity of Glasgow · GB

Funding

Inhibition of HIV-1 MaturationZIABC010778 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI FREED, ERIC · 2009 to 2025
$9.7M
900 MHz NMR Spectrometer for Structural BiologyP41GM066354 · NIGMS · NEW YORK STRUCTURAL BIOLOGY CENTER · PI COWBURN, DAVID · 2002 to 2006
$4.7M
Rational Design of antivrials targeted to HIV-1 capsidR01AI081604 · NIAID · NEW YORK BLOOD CENTER · PI DEBNATH, ASIM K · 2009 to 2013
$2.9M
Structural Biology of Protein KinasesR01GM047021 · NIGMS · ROCKEFELLER UNIVERSITY · PI COWBURN, DAVID · 1992 to 2008
$2.4M
Lectins in Insect ImmunityR01GM066356 · NIGMS · UNIVERSITY OF MISSOURI KANSAS CITY · PI YU, XIAO-QIANG · 2002 to 2011
$1.9M
Intramural NIH HHSNIAID NIH HHS R01 AI081604NIGMS NIH HHS GM-47021NIGMS NIH HHS GM-66356NIGMS NIH HHS P41 GM066354
6 · The paper itself

Abstract

backgroundThe C-terminal domain (CTD) of HIV-1 capsid (CA), like full-length CA, forms dimers in solution and CTD dimerization is a major driving force in Gag assembly and maturation. Mutations of the residues at the CTD dimer interface impair virus assembly and render the virus non-infectious. Therefore, the CTD represents a potential target for designing anti-HIV-1 drugs.

resultsDue to the pivotal role of the dimer interface, we reasoned that peptides from the α-helical region of the dimer interface might be effective as decoys to prevent CTD dimer formation. However, these small peptides do not have any structure in solution and they do not penetrate cells. Therefore, we used the hydrocarbon stapling technique to stabilize the α-helical structure and confirmed by confocal microscopy that this modification also made these peptides cell-penetrating. We also confirmed by using isothermal titration calorimetry (ITC), sedimentation equilibrium and NMR that these peptides indeed disrupt dimer formation. In in vitro assembly assays, the peptides inhibited mature-like virus particle formation and specifically inhibited HIV-1 production in cell-based assays. These peptides also showed potent antiviral activity against a large panel of laboratory-adapted and primary isolates, including viral strains resistant to inhibitors of reverse transcriptase and protease.

conclusionsThese preliminary data serve as the foundation for designing small, stable, α-helical peptides and small-molecule inhibitors targeted against the CTD dimer interface. The observation that relatively weak CA binders, such as NYAD-201 and NYAD-202, showed specificity and are able to disrupt the CTD dimer is encouraging for further exploration of a much broader class of antiviral compounds targeting CA. We cannot exclude the possibility that the CA-based peptides described here could elicit additional effects on virus replication not directly linked to their ability to bind CA-CTD.

Indexed as

Drug DesignAmino Acid SequenceAnti-HIV AgentsCell LineCloning, Moleculargag Gene Products, Human Immunodeficiency VirusGenetic VectorsHIV-1HumansHydrocarbonsMagnetic Resonance ImagingMicroscopy, ConfocalMolecular Sequence DataPeptides, CyclicProtein MultimerizationProtein Structure, SecondaryAnti-HIV Agentsgag Gene Products, Human Immunodeficiency VirusHydrocarbonsPeptides, Cyclic

Identifiers

PMID21539734
PMCPMC3097154
OpenAlexW2148546286

What OpenQuestion holds

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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.