Evidence map›Paper›PMID 9707617›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1998

Efficient expression of CFTR function with adeno-associated virus vectors that carry shortened CFTR genes.

L Zhang, D Wang, H Fischer, P D Fan, J H Widdicombe, Y W Kan, J Y Dong

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

32 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Review
  7. CRISPR/Cas Applications in Myotonic Dystrophy: Expanding Opportunities.International journal of molecular sciences · 2019
    Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Gene therapy for the treatment of cystic fibrosis.The application of clinical genetics · 2012
    Article
  14. Cystic fibrosis transmembrane conductance regulator with a shortened R domain rescues the intestinal phenotype of CFTR-/- mice.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
  15. Review
  16. Generation of novel AAV variants by directed evolution for improved CFTR delivery to human ciliated airway epithelium.Molecular therapy : the journal of the American Society of Gene Therapy · 2009
    Article
  17. Article
  18. Article
  19. Article
  20. Review
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 2 institutions in 2 countries.

L ZhangGene Therapy Core Center for Cystic Fibrosis and Genetic Diseases and Department of Laboratory Medicine, University of California, San Francisco, CA 94143, USA.
D Wang
H Fischer
P D Fan
J H Widdicombe
Y W Kan
J Y Dong
Howard Hughes Medical Institute · USUniversity of California, San Francisco · US

Funding

PILOT STUDY--THERAPEUTIC GENE TARGETING THE GLOMERULAR MESANGIUMP30DK047766 · NIDDK · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI KAN, YUET W · 1993 to 1997
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ROUS SARCOMA VIRUS FOR CF GENE THERAPYR01DK046177 · NIDDK · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI DONG, JOHN Y · 1992 to 1996
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NIDDK NIH HHS DK47766NIDDK NIH HHS DK/HL46177
6 · The paper itself

Abstract

Adeno-associated virus (AAV)-based vectors have been shown to be effective in transferring the cystic fibrosis gene (CFTR) into airway epithelial cells in animal models and in patients. However, the level of CFTR gene expression has been low because the vector cannot accommodate the CFTR gene together with a promoter. In this study, we described a strategy to reduce the size of the CFTR cDNA to allow the incorporation of an effective promoter with the CFTR gene into AAV vectors. We engineered and tested 20 CFTR mini-genes containing deletions that were targeted to regions that may contain nonessential sequences. Functional analyses showed that four of the shortened CFTRs (one with combined deletions) retained the function and the characteristics of a wild-type CFTR, as measured by open probability, time voltage dependence, and regulation by cAMP. By using an AAV vector with a P5 promoter, we transduced these short forms of CFTR genes into target cells and demonstrated high levels of CFTR expression. We also demonstrated that smaller AAV/CFTR vectors with a P5 promoter expressed the CFTR gene more efficiently than larger vectors or a vector in which CFTR gene was expressed from the AAV inverted terminal repeat sequence. The CFTR mini-gene with combined deletions was packaged into AAV virions more efficiently, generated higher titers of transducing virions, and more effectively transferred CFTR function into target cells. These new vectors should circumvent the limitations of AAV vector for CFTR expression. Our strategy also may be applicable to other genes, the sizes of which exceed the packaging limit of an AAV vector.

Indexed as

Genetic VectorsCell LineCystic FibrosisCystic Fibrosis Transmembrane Conductance RegulatorDependovirusDNA, ComplementaryGene ExpressionGenetic EngineeringGenetic TherapyHeLa CellsHumansPromoter Regions, GeneticSequence DeletionTransduction, GeneticCFTR protein, humanCystic Fibrosis Transmembrane Conductance RegulatorDNA, Complementary

Identifiers

PMID9707617
PMCPMC21478
OpenAlexW2029513032

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.