Evidence map›Paper›PMID 22735378›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2012

Safe, long-term hepatic expression of anti-HCV shRNA in a nonhuman primate model.

David A Suhy, Shih-Chu Kao, Tin Mao, Laurence Whiteley, Hubert Denise, Bernard Souberbielle, Andrew D Burdick, Kyle Hayes, J Fraser Wright, Helen Lavender and 11 more

Abstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

26 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Immunogenicity of Gene and Cell Therapies.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
  3. iPSC-hepatocyte organoids as a novel platform to predict AAV gene therapy efficacy.Molecular therapy. Methods & clinical development · 2025
    Article
  4. Article
  5. Ex vivo and in vivo suppression of SARS-CoV-2 with combinatorial AAV/RNAi expression vectors.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
    Article
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  9. Review
  10. Review
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  19. Recombinant AAV as a platform for translating the therapeutic potential of RNA interference.Molecular therapy : the journal of the American Society of Gene Therapy · 2014
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

21 authors.

David A SuhyTacere Therapeutics, San Jose, California, USA. Electronic address: dsuhy@tacerebio.com.
Shih-Chu KaoTacere Therapeutics, San Jose, California, USA.
Tin MaoTacere Therapeutics, San Jose, California, USA.
Laurence WhiteleyPfizer Global Research and Development, Drug Safety Research and Development, Cambridge, Massachusetts, USA.
Hubert DenisePfizer Global Research & Development, Kent, UK.
Bernard SouberbiellePfizer Global Research & Development, Kent, UK.
Andrew D BurdickPfizer Global Research and Development, Drug Safety Research and Development, Cambridge, Massachusetts, USA.
Kyle HayesPfizer Global Research and Development, Drug Safety Research and Development, Cambridge, Massachusetts, USA.
J Fraser WrightDivision of Hematology and Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA; Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Helen LavenderPfizer Global Research & Development, Kent, UK.
Peter RoelvinkTacere Therapeutics, San Jose, California, USA.
Alexander KolykhalovTacere Therapeutics, San Jose, California, USA.
Kevin BradyPfizer Global Research & Development, Kent, UK.
Sterghios A MoschosPfizer Global Research & Development, Kent, UK.
Bernd HauckDivision of Hematology and Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
Olga ZelenaiaDivision of Hematology and Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
Shangzhen ZhouDepartment of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, and Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Curt ScribnerTacere Therapeutics, San Jose, California, USA.
Katherine A HighDivision of Hematology and Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA; Howard Hughes Medical Institute, University of Pennsylvania School of Medicine, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
Sara H RenisonTacere Therapeutics, San Jose, California, USA.
Romu CorbauPfizer Global Research & Development, Kent, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The hepatitis C virus (HCV) chronically infects 2% of the world population and effective treatment is limited by long duration and significant side-effects. Here, we describe a novel drug, intended as a "single-shot " therapy, which expresses three short hairpin RNAs (shRNAs) that simultaneously target multiple conserved regions of the HCV genome as confirmed in vitro by knockdown of an HCV replicon system. Using a recombinant adeno-associated virus (AAV) serotype 8 vector for delivery, comprehensive transduction of hepatocytes was achieved in vivo in a nonhuman primate (NHP) model following a single intravenous injection. However, dose ranging studies performed in 13 NHP resulted in high-expression levels of shRNA from wild-type (wt) Pol III promoters and dose-dependent hepatocellular toxicity, the first demonstration of shRNA-related toxicity in primates, establishing that the hepatotoxicity arises from highly conserved features of the RNA interference (RNAi) pathway. In the second generation drug, each promoter was re-engineered to reduce shRNA transcription to levels that circumvent toxicity but still inhibit replicon activity. In vivo testing of this modified construct in 18 NHPs showed conservation of hepatocyte transduction but complete elimination of hepatotoxicity, even with sustained shRNA expression for 50 days. These data support progression to a clinical study for treatment of HCV infection.

Indexed as

Genome, ViralAnimalsDependovirusDNA Polymerase IIIGenetic EngineeringGenetic TherapyGenetic VectorsHepacivirusHepatitis C, ChronicHepatocytesInjections, IntravenousLiverMacaca fascicularisMicePromoter Regions, GeneticRepliconDNA Polymerase IIIRNA, Small InterferingRNA, Viral

Identifiers

PMID22735378
PMCPMC3437581

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.