Evidence map›Paper›PMID 19638341›Full record

ArticleThe Journal of biological chemistry2009

Identification and functional characterization of cytoplasmic determinants of plasmid DNA nuclear import.

Felix M Munkonge, Vaksha Amin, Stephen C Hyde, Anne-Marie Green, Ian A Pringle, Deborah R Gill, Joel W S Smith, Robert P Hooley, Stefania Xenariou, Malcolm A Ward and 10 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Electroporation-mediated gene delivery.Advances in genetics · 2015
    Article
  12. Article
  13. Proteomic and functional analyses of protein-DNA complexes during gene transfer.Molecular therapy : the journal of the American Society of Gene Therapy · 2013
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. 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

20 authors at 4 institutions in 3 countries.

Felix M MunkongeDepartment of Gene Therapy, National Heart & Lung Institute, Faculty of Medicine, Imperial College London, London SW3 6LR, United Kingdom. f.munkonge@imperial.ac.uk
Vaksha Amin
Stephen C Hyde
Anne-Marie Green
Ian A Pringle
Deborah R Gill
Joel W S Smith
Robert P Hooley
Stefania Xenariou
Malcolm A Ward
Nicola Leeds
Kit-Yi Leung
Mario Chan
Elizabeth Hillery
Duncan M Geddes
Uta Griesenbach
Edith H Postel
David A Dean
Michael J Dunn
Eric W F W Alton
King's College London · GBJohnson University · USUniversity College Dublin · IEUniversity of Rochester · US

Funding

NOVEL FUNCTION FOR NM23R01CA076496 · NCI · UNIV OF MED/DENT NJ-R W JOHNSON MED SCH · PI POSTEL, EDITH H · 1998 to 2008
$2.1M
VASCULAR SMOOTH MUSCLE SPECIFIC GENE THERAPY VECTORSR01HL059956 · NHLBI · UNIVERSITY OF SOUTH ALABAMA · PI DEAN, DAVID A · 1998 to 2007
$1.8M
NCI NIH HHS R01 CA076496NHLBI NIH HHS HL59956NHLBI NIH HHS R01 HL059956Wellcome Trust
6 · The paper itself

Abstract

Import of exogenous plasmid DNA (pDNA) into mammalian cell nuclei represents a key intracellular obstacle to efficient non-viral gene delivery. This includes access of the pDNA to the nuclei of non-dividing cells where the presence of an intact nuclear membrane is limiting for gene transfer. Here we identify, isolate, and characterize, cytoplasmic determinants of pDNA nuclear import into digitonin-permeabilized HeLa cells. Depletion of putative DNA-binding proteins, on the basis of their ability to bind immobilized pDNA, abolished pDNA nuclear import supporting the critical role of cytoplasmic factors in this process. Elution of pDNA-bound proteins, followed by two-dimensional sodium dodecyl polyacrylamide gel electrophoresis identified several candidate DNA shuttle proteins. We show that two of these, NM23-H2, a ubiquitous c-Myc transcription-activating nucleoside diphosphate kinase, and the core histone H2B can both reconstitute pDNA nuclear import. Further, we demonstrate a significant increase in gene transfer in non-dividing HeLa cells transiently transfected with pDNA containing binding sequences from two of the DNA shuttle proteins, NM23-H2 and the homeobox transcription factor Chx10. These data support the hypothesis that exogenous pDNA binds to cytoplasmic shuttle proteins and is then translocated to the nucleus using the minimal import machinery. Importantly, increasing the binding of pDNA to shuttle proteins by re-engineering reporter plasmids with shuttle binding sequences enhances gene transfer. Increasing the potential for exogenously added pDNA to bind intracellular transport cofactors may enhance the potency of non-viral gene transfer.

Indexed as

Active Transport, Cell NucleusCell ExtractsCell Membrane PermeabilityCell NucleusCytoplasmDigitoninDNAElectrophoresis, Gel, Two-DimensionalHeLa CellsHomeodomain ProteinsHumansNM23 Nucleoside Diphosphate KinasesPlasmidsProtein BindingProteinsProteomicsCell ExtractsDigitoninDNAHomeodomain ProteinsNM23 Nucleoside Diphosphate KinasesNME2 protein, humanProteinsTranscription FactorsVSX2 protein, human

Identifiers

PMID19638341
PMCPMC2785383
OpenAlexW2024512790

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.