Evidence map›Paper›PMID 38508197›Full record

ArticleCell chemical biology2024

PROTAC-mediated degradation of HIV-1 Nef efficiently restores cell-surface CD4 and MHC-I expression and blocks HIV-1 replication.

Lori A Emert-Sedlak, Colin M Tice, Haibin Shi, John J Alvarado, Sherry T Shu, Allen B Reitz, Thomas E Smithgall

Open access · greenAbstract read
In one paragraph

Article in Cell chemical biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
6.5field-weighted citation impact, top 2% 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, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Lori A Emert-SedlakDepartment of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA.
Colin M TiceFox Chase Therapeutics Discovery, Inc., Pennsylvania Biotechnology Center, Doylestown, PA 18902, USA.
Haibin ShiDepartment of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA.
John J AlvaradoDepartment of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA.
Sherry T ShuDepartment of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA.
Allen B ReitzFox Chase Therapeutics Discovery, Inc., Pennsylvania Biotechnology Center, Doylestown, PA 18902, USA.
Thomas E SmithgallDepartment of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA. Electronic address: tsmithga@pitt.edu.
University of Pittsburgh · US

Funding

Chemical Biology of HIV-1 NefR01AI152677 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Thomas E. Smithgall · 2020 to 2026
$4.8M
PROTACS Against Nef as a Functional Cure for HIV InfectionR41AI155054 · NIAID · FOX CHASE CHEMICAL DIVERSITY CENTER, INC · PI SMITHGALL, THOMAS E. · 2020 to 2021
$598k
NIAID NIH HHS R01 AI152677NIAID NIH HHS R41 AI155054
6 · The paper itself

Abstract

The HIV-1 Nef accessory factor enhances the viral life cycle in vivo, promotes immune escape of HIV-infected cells, and represents an attractive antiretroviral drug target. However, Nef lacks enzymatic activity and an active site, complicating traditional occupancy-based drug development. Here we describe the development of proteolysis targeting chimeras (PROTACs) for the targeted degradation of Nef. Nef-binding compounds, based on an existing hydroxypyrazole core, were coupled to ligands for ubiquitin E3 ligases via flexible linkers. The resulting bivalent PROTACs induced formation of a ternary complex between Nef and the cereblon E3 ubiquitin ligase thalidomide-binding domain in vitro and triggered Nef degradation in a T cell expression system. Nef-directed PROTACs efficiently rescued Nef-mediated MHC-I and CD4 downregulation in T cells and suppressed HIV-1 replication in donor PBMCs. Targeted degradation is anticipated to reverse all HIV-1 Nef functions and may help restore adaptive immune responses against HIV-1 reservoir cells in vivo.

Indexed as

HIV-1Cell MembraneDown-RegulationProteolysisT-LymphocytesUbiquitin-Protein LigasesVirus ReplicationUbiquitin-Protein Ligasesantiretroviral drugsCD4HIV-1HIV NefMHC-IPROTACstargeted degradation

Identifiers

PMID38508197
PMCPMC11031313
OpenAlexW4392950895

What Socratic holds

Textmetadata
LicenceTDM
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 Socratic graph.