ArticleMolecular pharmaceutics2012
Intrinsic dynamics of DNA-polymer complexes: a mechanism for DNA release.
Article in Molecular pharmaceutics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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.
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.
Who cites it
6 citing papers in PubMed.
- Unveiling an NMR-Invisible Fraction of Polymers in Solution by Saturation Transfer Difference.ACS macro letters · 2021Article
- Role of Cell Membrane-Vector Interactions in Successful Gene Delivery.Accounts of chemical research · 2016Article
- Cationic Polymer Intercalation into the Lipid Membrane Enables Intact Polyplex DNA Escape from Endosomes for Gene Delivery.Molecular pharmaceutics · 2016Article
- Rapid Exchange Between Free and Bound States in RNA-Dendrimer Polyplexes: Implications on the Mechanism of Delivery and Release.Biomacromolecules · 2016Article
- Quantitative Measurement of Cationic Polymer Vector and Polymer-pDNA Polyplex Intercalation into the Cell Plasma Membrane.ACS nano · 2015Article
- Polyplex-induced cytosolic nuclease activation leads to differential transgene expression.Molecular pharmaceutics · 2013Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
The transfer of genetic material into cells using nonviral vectors offers unique potential for therapeutics; however, the efficacy of delivery depends upon a poorly understood, multistep pathway, limiting the prospects for successful gene delivery. Mechanistic insight into DNA association and release has been hampered by a lack of atomic resolution structural and dynamic information for DNA-polymer complexes (polyplexes). Here, we report a dendrimer-based polyplex system containing poly(ethyleneglycol) (PEG) arms that is suitable for atomic-level characterization by solution NMR spectroscopy. NMR chemical shift, line width, and proton transverse relaxation rate measurements reveal that free and dendrimer-bound polyplex DNA exchange rapidly relative to the NMR time scale (<millisecond). The dendrimers retain a high degree of mobility in the polyplex, whereas the DNA shows restrained mobility, suggesting that the polyplex is a highly dynamic complex with a rapidly exchanging dendrimer atmosphere around a more rigid DNA framework.
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Registered trials
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