Evidence map›Paper›PMID 10602375›Full record

ArticleGene therapy1999

Mechanisms of gene transfer mediated by lipoplexes associated with targeting ligands or pH-sensitive peptides.

S Simões, V Slepushkin, P Pires, R Gaspar, M P de Lima, N Düzgüneş

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in Gene therapy, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.3field-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

27 citing papers in PubMed, 163 citations in OpenAlex.

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  11. Coupled folding and specific binding: fishing for amphiphilicity.International journal of molecular sciences · 2011
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  20. Polymers for DNA delivery.Molecules (Basel, Switzerland) · 2005
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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

6 authors at 2 institutions in 2 countries.

S SimõesDepartment of Microbiology, School of Dentistry, University of the Pacific, San Francisco, CA 94115, USA.
V Slepushkin
P Pires
R Gaspar
M P de Lima
N Düzgüneş
University of the Pacific · USUniversity of Coimbra · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Association of a targeting ligand such as transferrin, or an endosome disrupting peptide such as GALA, with cationic liposome-DNA complexes ('lipoplexes') results in a significant enhancement of transfection of several cell types (Simões S et al, Gene Therapy 1998; 5: 955-964). Although these strategies can overcome some of the barriers to gene delivery by lipoplexes, the mechanisms by which they actually enhance tranfection is not known. In studies designed to establish the targeting specificity of transferrin, we found that apo-transferrin enhances transfection to the same extent as transferrin, indicating that internalization of the lipoplexes is mostly independent of transferrin receptors. These observations were reinforced by results obtained from competitive inhibition studies either by preincubating the cells with an excess of free ligand or with various 'receptor-blocking' lipoplexes. Transfection of cells in the presence of drugs that interfere with the endocytotic pathway provided additional insights into the mechanisms of gene delivery by transferrin- or GALA-lipoplexes. Our results indicate that transferrin-lipoplexes deliver transgenes by endocytosis primarily via a non-receptor-mediated mechanism, and that acidification of the endosomes is partially involved in this process.

Indexed as

Gene Transfer TechniquesCell SurvivalDNAEndocytosisHeLa CellsHumansHydrogen-Ion ConcentrationLiposomesPeptidesReceptors, TransferrinTransfectionTransferrinDNAGALA peptideLiposomesPeptidesReceptors, TransferrinTransferrin

Identifiers

PMID10602375
OpenAlexW2330884341

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.