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Related Concept Videos

Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

Site-Targeted Drug Delivery Systems: Polymeric Carriers

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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Evaluation of Polymeric Gene Delivery Nanoparticles by Nanoparticle Tracking Analysis and High-throughput Flow Cytometry
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Published on: March 1, 2013

Functional protein delivery into neurons using polymeric nanoparticles.

Linda Hasadsri1, Jörg Kreuter, Hiroaki Hattori

  • 1Department of Cell and Developmental Biology, College of Medicine, Medical Scholars Program, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, USA.

The Journal of Biological Chemistry
|January 9, 2009
PubMed
Summary
This summary is machine-generated.

Polybutylcyanoacrylate nanoparticles efficiently deliver functional proteins into neurons. This novel method shows minimal toxicity and holds promise for treating neurological disorders like Parkinson disease.

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Area of Science:

  • Neuroscience
  • Biotechnology
  • Materials Science

Background:

  • Intracellular protein delivery to neurons is crucial for treating neurological diseases.
  • Existing methods face challenges in efficiency, specificity, and potential toxicity.

Purpose of the Study:

  • To investigate polybutylcyanoacrylate nanoparticles as a novel system for intracellular protein delivery into neurons.
  • To assess the efficiency, mechanism of uptake, and toxicity of these nanoparticles in neuronal models.

Main Methods:

  • Utilized polybutylcyanoacrylate nanoparticles to deliver various proteins (beta-galactosidase, rhoG, anti-alpha-synuclein antibody) into cultured neurons and cell lines.
  • Investigated nanoparticle uptake mechanism via the low-density lipoprotein receptor and endocytosis.
  • Assessed functional delivery by measuring enzyme activity, cellular differentiation, and interaction with endogenous proteins.

Main Results:

  • Demonstrated efficient delivery of intact, functional proteins into neurons and neuronal cell lines.
  • Identified low-density lipoprotein receptor-mediated endocytosis as the primary uptake pathway.
  • Observed rapid nanoparticle turnover and minimal toxicity in cultured neurons.
  • Confirmed functional delivery of beta-galactosidase, rhoG, and an anti-alpha-synuclein antibody, showing persistent enzyme activity, induced neurite outgrowth, and interaction with endogenous alpha-synuclein.

Conclusions:

  • Polybutylcyanoacrylate nanoparticles provide an effective platform for intracellular protein delivery in vitro.
  • These nanoparticles exhibit low toxicity and potential for therapeutic applications in neuronal disorders.
  • This approach offers a promising strategy for developing novel treatments for diseases with intracellular neuronal defects.