Evidence map›Paper›PMID 26729248›Full record

ArticleBMC biotechnology2016

Single point mutation in adeno-associated viral vectors -DJ capsid leads to improvement for gene delivery in vivo.

Yingying Mao, Xuejun Wang, Renhe Yan, Wei Hu, Andrew Li, Shengqi Wang, Hongwei Li

Open access · goldAbstract read
In one paragraph

Article in BMC biotechnology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
13.8field-weighted citation impact, top 1% 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

23 citing papers in PubMed, 116 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. AAV-ie-K558R mediated cochlear gene therapy and hair cell regeneration.Signal transduction and targeted therapy · 2022
    Article
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  13. Article
  14. Hepatic neddylation targets and stabilizes electron transfer flavoproteins to facilitate fatty acid β-oxidation.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  15. Article
  16. Article
  17. Article
  18. Gene Therapy Tools for Brain Diseases.Frontiers in pharmacology · 2019
    Review
  19. Emerging Gene Therapies for Genetic Hearing Loss.Journal of the Association for Research in Otolaryngology : JARO · 2017
    Review
  20. In Vivo Excision of HIV-1 Provirus by saCas9 and Multiplex Single-Guide RNAs in Animal Models.Molecular therapy : the journal of the American Society of Gene Therapy · 2017
    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

7 authors at 3 institutions in 2 countries.

Yingying MaoSchool of Biotechnology, Southern Medical University, 1023 South Shatai Road, Guangzhou, Guangdong, 510515, China.
Xuejun WangDepartment of Biotechnology, Beijing Institute of Radiation Medicine, Beijing, China. xjwang@bmi.ac.cn.
Renhe YanSchool of Biotechnology, Southern Medical University, 1023 South Shatai Road, Guangzhou, Guangdong, 510515, China.
Wei HuDepartment of Biotechnology, Beijing Institute of Radiation Medicine, Beijing, China.
Andrew LiDepartment of Biomedical Engineering, The Johns Hopkins University School of Medicine, Baltimore, USA.
Shengqi WangDepartment of Biotechnology, Beijing Institute of Radiation Medicine, Beijing, China. sqwang@bmi.ac.cn.
Hongwei LiSchool of Biotechnology, Southern Medical University, 1023 South Shatai Road, Guangzhou, Guangdong, 510515, China. hongwei1@yahoo.com.
Beijing Radiation Center · CNSouthern Medical University · CNJohns Hopkins Medicine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRational design of AAV capsids is a simple method for enhancing AAV transduction efficiency. AAV-DJ is a highly recombinogenic hybrid vector created from DNA shuffling of eight AAV serotypes, which mediates efficient gene expression both in vitro and in vivo. AAV2 and AAV8 are the closest parental vectors of AAV-DJ and it has been reported that mutations on the 137/251/503 ubiquitination or phosphorylation sites of the AAV2 or AAV8 capsid lead to dramatic enhancement of gene delivery. Here, we aimed to find out whether the same point mutations on the AAV-DJ capsid could lead to significant improvement for gene delivery both in vitro and in vivo.

resultsWe constructed three single point mutants (K137R/T251A/S503A) of AAV-DJ and the transduction efficiency of these mutants and AAV-DJ were investigated using two reporter gene systems including green fluorescent protein (GFP) and dual-luciferase (Gaussia luciferase and Firefly luciferase). Data indicated that single point mutations T251A/S503A lead to significant improvement of dual-luciferase expression in vivo after tail vein (TV) injection in mice respectively, despite limited enhancement of GFP expression in 293 T, Hela and HepG2 cells in vitro. Moreover, in vivo bioluminescence image and viral genome DNA copy number in tissue analysis showed that these mutants reserved the liver tropism characteristics, consistent with AAV-DJ.

conclusionSingle point mutations on the 251/503 sites of AAV-DJ capsid can lead to a significant improvement for in vivo gene expression. These enhanced AAV vectors have great potential in gene therapy applications.

Indexed as

AnimalsCapsid ProteinsCell LineDependovirusGenome, ViralHeLa CellsHep G2 CellsHumansLuciferasesMaleMiceMice, Inbred C57BLOptical ImagingPoint MutationTissue DistributionTransfectionCapsid ProteinsLuciferases

Identifiers

PMID26729248
PMCPMC4700607
OpenAlexW2227760617

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Registered trials

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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.