Evidence map›Paper›PMID 12423061›Full record

ArticleAAPS pharmSci2002

Transfection efficiency and toxicity of polyethylenimine in differentiated Calu-3 and nondifferentiated COS-1 cell cultures.

Bogdan I Florea, Clare Meaney, Hans E Junginger, Gerrit Borchard

Open access · bronzeAbstract read
In one paragraph

Article in AAPS pharmSci, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

67 citing papers in PubMed, 241 citations in OpenAlex.

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  12. Materials (Basel, Switzerland) · 2021
    Article
  13. Genetic Delivery and Gene Therapy in Pulmonary Hypertension.International journal of molecular sciences · 2021
    Review
  14. Review
  15. Article
  16. Article
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  18. Article
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  20. Review

7 more citing papers are in PubMed but not listed here.

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

4 authors at 2 institutions in 1 country.

Bogdan I FloreaDivision of Pharmaceutical Technology, Leiden/Amsterdam Center for Drug Research, Leiden University, The Netherlands.
Clare Meaney
Hans E Junginger
Gerrit Borchard
Leiden University · NLCentre for Human Drug Research · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the present study, we evaluated polyethylenimine (PEI) of different molecular weights (MWs) as a DNA complexing agent for its efficiency in transfecting nondifferentiated COS-1 (green monkey fibroblasts) and well-differentiated human submucosal airway epithelial cells (Calu-3). Studying the effect of particle size, zeta potential, presence of serum proteins or chloroquine, it appeared that transfection efficiency depends on the experimental conditions and not on the MW of the PEI used. Comparing transfection efficiencies in both cell lines, we found that PEI was 3 orders of magnitude more effective in COS-1 than in Calu-3 cells, because Calu-3 cells are differentiated and secrete mucins, which impose an additional barrier to gene delivery. Transfection efficiency was strongly correlated to PEI cytotoxicity. Also, some evidence for PEI-induced apoptosis in both cell lines was found. In conclusion, our results indicate that PEI is a useful vector for nonviral transfection in undifferentiated cell lines. However, results from studies in differentiated bronchial epithelial cells suggest that PEI has yet to be optimized for successful gene therapy of cystic fibrosis (CF).

Indexed as

AnimalsBisbenzimidazoleCell DifferentiationCell NucleusCells, CulturedCell SurvivalChlorocebus aethiopsCOS CellsDNAEpithelial CellsFluorescent DyesHumansLaryngeal MucosaNucleic Acid ConformationPolyethyleneimineStaining and LabelingBisbenzimidazoleDNAFluorescent DyesPolyethyleneimine

Identifiers

PMID12423061
PMCPMC2751351
OpenAlexW2107743746

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.