Evidence map›Paper›PMID 18701910›Full record

ArticleGene therapy2009

A small regulatory element from chromosome 19 enhances liver-specific gene expression.

C Li, M Hirsch, P Carter, A Asokan, X Zhou, Z Wu, R J Samulski

Open access · bronzeAbstract read
In one paragraph

Article in Gene therapy, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 25% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Reconstitution of Morphogen Signaling Gradients in Cultured Cells.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
  8. Targeted Gene Delivery: Where to Land.Frontiers in genome editing · 2020
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. 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

7 authors at 1 institution in 1 country.

C LiGene Therapy Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
M Hirsch
P Carter
A Asokan
X Zhou
Z Wu
R J Samulski
University of North Carolina at Chapel Hill · US

Funding

Integrated Training in Cancer Model SystemsT32CA009156 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DER, CHANNING J. · 1985 to 2020
$19.7M
Respiratory Syncytial Virus Based Vectors for CFTRP01HL051818 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DAVIS, WILLIAM C. · 1993 to 2008
$16.0M
TRANSPORT AND DELIVERY OF ANTISNESE OLIGONUCLEOTIDESP01GM059299 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI JULIANO, RUDOLPH · 2000 to 2010
$11.7M
Resolving rate limiting steps for AAV vectorsP01HL066973 · NHLBI · UNIVERSITY OF NORTH CAROLINA CHAPEL HILL · PI SAMULSKI, RICHARD J · 2001 to 2005
$9.3M
NCI NIH HHS T32 CA009156NHLBI NIH HHS 2P01HL051818NHLBI NIH HHS 5P01HL066973NHLBI NIH HHS P01 HL051818NHLBI NIH HHS P01 HL066973NIGMS NIH HHS 5P01GM059299NIGMS NIH HHS P01 GM059299
6 · The paper itself

Abstract

Tissue-specific promoters for gene therapy are typically too big for adeno-associated virus (AAV) vectors; thus, the exploration of small effective non-viral regulatory elements is of particular interest. Wild-type AAV can specifically integrate into a region on human chromosome 19 termed AAVS1. Earlier work has determined that a 347 bp fragment (Chr19) of AAVS1 has promoter and transcriptional enhancer activities. In this study, we further characterized this genetic regulation and investigated its application to AAV gene therapy in vitro and in vivo. The Chr19 347 bp fragment was dissected into three regulatory elements in human embryonic kidney cells: (i) TATA-independent promoter activity distributed throughout the fragment regardless of orientation, (ii) an orientation-dependent insulator function near the 5' end and (iii) a 107 bp enhancer region near the 3' end. The small enhancer region, coupled to the mini-CMV promoter, was used to drive the expression of several reporters following transduction by AAV2. In vivo data demonstrated enhanced transgene expression from the Chr19-mini-CMV promoter cassette after tail vein injection primarily in the liver at levels comparable to the chicken beta-actin promoter and higher than the liver-specific TTR promoter (>2-fold). However, we did not observe this increase after muscle injection, suggesting tissue-specific enhancement. All of the results support identification of a small DNA fragment (347 bp) from AAV Chr19 integration site capable of providing efficient and enhanced liver-specific transcription when used in recombinant AAV vectors.

Indexed as

Regulatory Sequences, Nucleic AcidAnimalsCell LineChromosomes, Human, Pair 19DependovirusEnhancer Elements, GeneticFemaleGene ExpressionGenetic TherapyGenetic VectorsHumansInjections, IntramuscularLiverLuciferases, FireflyLuminescenceMiceLuciferases, Firefly

Identifiers

PMID18701910
PMCPMC4971579
OpenAlexW2026643798

What OpenQuestion holds

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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.