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Structure of DNA-PAMAM Dendrimer Complexes Studied Using Small-angle Scattering Techniques

期刊

CURRENT MEDICINAL CHEMISTRY
卷 28, 期 36, 页码 7529-7543

出版社

BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/0929867327666200728140243

关键词

Dendrimer; DNA; small-angle scattering; TEM; structure-function relationship; gene therapy; biotechnology

资金

  1. Ministry of Science and Technology in Taiwan
  2. MOST [105-2221-E-007-137-MY3]

向作者/读者索取更多资源

Gene therapy is a critical development in modern medicine, making the search for non-viral carriers of therapeutic nucleic acids essential. Dendrimers, with their hyper-branched structure and low cytotoxicity, have shown promise in compacting DNA for delivery, with different structures being formed based on physiochemical conditions. Understanding the mechanisms driving this compaction and tuning the structural properties of the complexes using small-angle scattering techniques will be the focus of future research.
Gene therapy is one of the most important developments for modern medicine. As such methods for the compaction and delivery of nucleic acids bearing therapeutic sequences is essential. The quest for non-viral carriers of nucleic acids has produced a number of possible candidates with dendrimer being among the most promising. Their hyper-branched structure and well-defined size together with low cytotoxicity has found success in both ex-vivo and in-vivo studies. The compaction of DNA with dendrimer has produced a rich array of different structures depending on the physiochemical conditions. Mechanisms that drive the compaction have been shown to be a number of physical interactions that reduce the large polymeric entity from 100s of nanometers to some tens of nanometers to fit into the cell nucleus. The mechanisms driving the compaction of DNA will be discussed in detail while the focus will be directed to tuning the structural properties of the complexes and their structural characterization using small-angle scattering techniques.

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