Evidence map›Paper›PMID 19240695›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2009

Development of a hybrid baculoviral vector for sustained transgene expression.

Wen-Hsin Lo, Shiaw-Min Hwang, Ching-Kuang Chuang, Chi-Yuan Chen, Yu-Chen Hu

Open access · bronzeAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 69 citations in OpenAlex.

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  17. MicroRNA delivery for regenerative medicine.Advanced drug delivery reviews · 2015
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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

5 authors at 2 institutions in 1 country.

Wen-Hsin LoDepartment of Chemical Engineering, National Tsing Hua University, Hsinchu, Taiwan.
Shiaw-Min Hwang
Ching-Kuang Chuang
Chi-Yuan Chen
Yu-Chen Hu
National Tsing Hua University · TWFood Industry Research and Development Institute · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Baculovirus is a promising gene delivery vector but its widespread application is impeded as it only mediates transient transgene expression in mammalian cells. To prolong the expression, we developed a dual baculovirus system whereby one baculovirus expressed FLP recombinase while the other harbored an Frt-flanking cassette encompassing the transgene and oriP/EBNA1 derived from Epstein-Barr virus. After cotransduction of cells, the expressed FLP cleaved the Frt-flanking cassette off the baculovirus genome and catalyzed circular episome formation, then oriP/EBNA1 within the cassette enabled the self-replication of episomes. The excision/recombination efficiency was remarkably enhanced by sodium butyrate, reaching 75% in human embryonic kidney-293 (HEK293) cells, 85% in baby-hamster kidney (BHK) cells, 77% in primary chondrocytes, and 48% in mesenchymal stem cells (MSCs). The hybrid baculovirus substantially prolonged the transgene expression to approximately 48 days without selection and >63 days with selection, thanks to the maintenance of replicons and transgene transcription. In contrast to the replicating episomes, the baculovirus genome was rapidly degraded. Furthermore, an osteoinductive growth factor gene was efficiently delivered into MSCs using this system, which not only prolonged the growth factor expression but also potentiated the osteogenesis of MSCs. These data collectively implicate the potential of this hybrid baculovirus system in gene therapy applications necessitating sustained transgene expression.

Indexed as

Genetic VectorsTransgenesAnimalsBaculoviridaeBase SequenceBone Morphogenetic Protein 2Cell LineCricetinaeDNA PrimersHumansOsteogenesisPlasmidsPolymerase Chain ReactionRecombination, GeneticBone Morphogenetic Protein 2DNA Primers

Identifiers

PMID19240695
PMCPMC2835104
OpenAlexW2069075938

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.