Evidence map›Paper›PMID 20360564›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2010

Salmonella-mediated delivery of RNase P-based ribozymes for inhibition of viral gene expression and replication in human cells.

Yong Bai, Hongjian Li, Gia-Phong Vu, Hao Gong, Sean Umamoto, Tianhong Zhou, Sangwei Lu, Fenyong Liu

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

22 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. An OralPathogens (Basel, Switzerland) · 2025
    Article
  3. Article
  4. Article
  5. Oral Vaccination with AttenuatedPathogens (Basel, Switzerland) · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Ribozyme-Spherical Nucleic Acids.Journal of the American Chemical Society · 2015
    Article
  18. Article
  19. Review
  20. Oral delivery of RNase P ribozymes by Salmonella inhibits viral infection in mice.Proceedings of the National Academy of Sciences of the United States of America · 2011
    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

8 authors at 1 institution in 1 country.

Yong BaiUniversity of California, Berkeley, CA 94720, USA.
Hongjian Li
Gia-Phong Vu
Hao Gong
Sean Umamoto
Tianhong Zhou
Sangwei Lu
Fenyong Liu
University of California, Berkeley · US

Funding

RIBOZYMES FOR STUDIES AND TREATMENT OF HCMV INFECTIONSR01AI041927 · NIAID · UNIVERSITY OF CALIFORNIA BERKELEY · PI LIU, FENYONG · 1997 to 2012
$3.7M
Small RNA therapeutics for AIDS-associated infectionR01DE014842 · NIDCR · UNIVERSITY OF CALIFORNIA BERKELEY · PI LIU, FENYONG · 2002 to 2010
$2.2M
NIAID NIH HHS AI041927NIAID NIH HHS R01 AI041927NIDCR NIH HHS DE014842NIDCR NIH HHS R01 DE014842
6 · The paper itself

Abstract

A fundamental challenge in gene therapy is to develop approaches for delivering nucleic acid-based gene interfering agents, such as small interfering RNAs and ribozymes, to the appropriate cells in a way that is tissue/cell specific, efficient, and safe. Using human cytomegalovirus (HCMV) infection of differentiated macrophages as the model, we showed that Salmonella can efficiently deliver RNase P-based ribozyme sequence in specific human cells, leading to substantial ribozyme expression and effective inhibition of viral infection. We constructed a functional RNase P ribozyme (M1GS RNA) that targets the overlapping mRNA region of two HCMV capsid proteins, the capsid scaffolding protein (CSP) and assemblin, which are essential for viral capsid formation. Substantial expression of ribozymes was observed in human differentiated macrophages that were treated with attenuated Salmonella strains carrying the ribozyme sequence constructs. A reduction of 87-90% in viral CSP expression and a reduction of about 5,000-fold in viral growth were observed in cells that were treated with Salmonella carrying the sequence of the functional ribozyme but not with those carrying the sequence of a control ribozyme that contained mutations abolishing the catalytic activity. To our knowledge, this study showed for the first time that ribozymes expressed following targeted gene transfer with Salmonella-based vectors are highly active and specific in blocking viral infection. Moreover, these results demonstrate the feasibility to develop Salmonella-mediated gene transfer of RNase P ribozymes as an effective approach for gene-targeting applications.

Indexed as

Gene Expression Regulation, ViralCell DifferentiationCytomegalovirus InfectionsFibroblastsGenetic TherapyGenetic VectorsGene Transfer TechniquesHumansKineticsNucleic Acid ConformationPoint MutationRibonuclease PRNA, CatalyticSalmonellaVirus ReplicationRibonuclease PRNA, Catalytic

Identifiers

PMID20360564
PMCPMC2867731
OpenAlexW2081046895

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.