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Related Concept Videos

Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

Site-Targeted Drug Delivery Systems: Polymeric Carriers

132
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
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Gene Therapy00:59

Gene Therapy

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Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...
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Evaluation of Polymeric Gene Delivery Nanoparticles by Nanoparticle Tracking Analysis and High-throughput Flow Cytometry
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Defined polymeric materials for gene delivery.

Dongsheng He1, Ernst Wagner2

  • 1Pharmaceutical Biotechnology, Center for System-based Drug Research and Center for NanoScience (CeNS), Ludwig-Maximilians-University, 81377, Munich, Germany. He.dongsheng@cup.uni-muenchen.de.

Macromolecular Bioscience
|February 7, 2015
PubMed
Summary
This summary is machine-generated.

Developing precisely defined polymers is crucial for effective gene therapy. This review explores defined polymeric vectors like dendrimers and oligoaminoamides for overcoming gene delivery challenges.

Keywords:
dendrimergene deliverypDNApolymersolid-phase peptide synthesis

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Area of Science:

  • Biomaterials Science
  • Gene Therapy
  • Polymer Chemistry

Background:

  • Gene therapy requires efficient and safe delivery of genetic material into target cells, a significant challenge.
  • Polymeric materials show promise as gene delivery agents but suffer from heterogeneity and lack of precise modification.
  • This limits structure-activity relationship studies and the clinical development of defined gene delivery materials.

Purpose of the Study:

  • To review the current design of precisely defined polymeric materials for gene transfer.
  • To highlight the importance of defined structures for overcoming gene delivery barriers.
  • To provide examples of defined polymeric vectors used in gene therapy.

Main Methods:

  • Review of current literature on polymeric gene delivery systems.
  • Discussion of barriers encountered in gene delivery.
  • Illustrative examples of defined polymeric vectors, including dendrimers, peptide carriers, and sequence-defined oligoaminoamides.

Main Results:

  • Defined polymeric materials offer advantages over traditional polymers due to their precise chemical structures.
  • These defined materials facilitate accurate structure-activity relationship studies.
  • Examples demonstrate the potential of dendrimers, peptide carriers, and oligoaminoamides as effective gene transfer vectors.

Conclusions:

  • Precisely defined polymers are essential for advancing gene therapy.
  • Overcoming gene delivery barriers necessitates the development of highly defined materials.
  • Dendrimers, peptide carriers, and sequence-defined oligoaminoamides represent promising avenues for future gene therapy applications.