Evidence map›Paper›PMID 19388846›Full record

ArticleDNA and cell biology2009

Posttranscriptional regulatory elements enhance antigen expression and DNA vaccine efficacy.

Jing Sun, Dingfeng Li, Yanling Hao, Yuwei Zhang, Wenling Fan, Jingjing Fu, Yunzhang Hu, Yong Liu, Yiming Shao

Open access · hybridAbstract read
In one paragraph

Article in DNA and cell biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 20% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. The Current Status of COVID-19 Vaccines.Frontiers in genome editing · 2020
    Review
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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

9 authors at 2 institutions in 2 countries.

Jing SunInstitute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming, China.
Dingfeng Li
Yanling Hao
Yuwei Zhang
Wenling Fan
Jingjing Fu
Yunzhang Hu
Yong Liu
Yiming Shao
Chinese Center For Disease Control and Prevention · CNChinese Academy of Medical Sciences & Peking Union Medical College · CN

Funding

Virology &ImmunologyU19AI051915 · NIAID · NATIONAL CENTER FOR AIDS/STD CONTROL AND PREVENTION · PI SHAO, YIMING · 2002 to 2009
$21.6M
NIAID NIH HHS 1 U19 AI51915-02NIAID NIH HHS U19 AI051915
6 · The paper itself

Abstract

In higher eukaryotes, introns are usually required for efficient pre-mRNA processing. However, some viruses have alternative approaches involving posttranscriptional regulatory elements (PREs) to enhance intronless heterologous gene expression through enabling stability and 3' end formation, and to facilitate the nucleocytoplasmic export of unspliced mRNAs. In the current study, we compared the human cytomegalovirus (hCMV) immediate/early (IE) intronA, as well as virus-derived PREs-the PRE of Hepatitis B virus (HPRE) and Woodchuck Hepatitis virus (WPRE) on their ability to enhance antigen gene expression in vitro and immune responses induced by DNA vaccination in animal. Among all the constructs, the plasmids carrying the HPRE element showed the highest gene expression level in both in vivo and in vitro models. During immunization of mice with low doses (10 microg) of HIV-1 DNA vaccine, only -intronA/+HPRE and +intronA/+HPRE vaccine constructs induced anti-Gag antibodies, although the -intronA/+WPRE construct also elicited antigen-specific cellular immune responses. In addition, pInHGag (+intronA/+HPRE) at a 10 mug dose could induce higher anti-Gag antibody level than that induced by pGag (-intronA/-HPRE) or pInGag (+intronA/-HPRE) at 40 microg dose (p < 0.05). Our data are useful for the optimization of heterologous expression and immunogenicity of DNA vaccines.

Indexed as

Regulatory Sequences, Nucleic AcidRNA Processing, Post-TranscriptionalAIDS VaccinesAnimalsAntibodies, ViralAntigens, ViralBlotting, WesternCells, CulturedFemaleGene Products, gagHepatitis B virusHepatitis B Virus, WoodchuckHIV-1HumansImmediate-Early ProteinsIntronsAIDS VaccinesAntibodies, ViralAntigens, ViralGene Products, gagImmediate-Early Proteinsimmediate-early proteins, cytomegalovirusRNA, MessengerVaccines, DNA

Identifiers

PMID19388846
PMCPMC2719066
OpenAlexW2051771626

What OpenQuestion holds

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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.