Intrinsic dynamics of DNA-polymer complexes: a mechanism for DNA release.

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 (

journal_name

Mol Pharm

journal_title

Molecular pharmaceutics

authors

Prevette LE,Nikolova EN,Al-Hashimi HM,Banaszak Holl MM

doi

10.1021/mp3002864

subject

Has Abstract

pub_date

2012-09-04 00:00:00

pages

2743-9

issue

9

eissn

1543-8384

issn

1543-8392

journal_volume

9

pub_type

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