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Anticancer Efficacy of Photodynamic Therapy with Lung Cancer-Targeted Nanoparticles
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Thrombin-Responsive, Brain-Targeting Nanoparticles for Improved Stroke Therapy.

Xing Guo, Gang Deng1, Jun Liu

  • 1Department of Neurosurgery , Renmin Hospital of Wuhan University , Wuhan , Hubei 430060 , China.

ACS Nano
|August 16, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed novel nanoparticles that target the brain, responding to stroke conditions. These AMD3100-conjugated, size-shrinkable nanoparticles (ASNPs) improve drug delivery and reduce toxicity for better ischemic stroke treatment.

Keywords:
CXCR4drug deliveryglyburideischemic strokeprotease-responsive

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Area of Science:

  • Nanotechnology
  • Neuroscience
  • Pharmacology

Background:

  • Current ischemic stroke treatments are limited by the blood-brain barrier.
  • Effective pharmacological strategies are needed to overcome this challenge.

Purpose of the Study:

  • To develop protease-responsive, brain-targeting nanoparticles for improved stroke therapy.
  • To enhance the delivery and efficacy of therapeutic drugs for ischemic stroke.

Main Methods:

  • Synthesized nanoparticles responsive to proteases (thrombin, MMP-9) in the ischemic microenvironment.
  • Conjugated nanoparticles with AMD3100 ligands for brain targeting via CXCR4 interaction.
  • Screened formulations to identify AMD3100-conjugated, size-shrinkable nanoparticles (ASNPs) with optimal delivery efficiency.

Main Results:

  • ASNPs demonstrated efficient delivery into the ischemic brain.
  • AMD3100-mediated targeting via CXCR4 interaction was confirmed.
  • ASNPs significantly enhanced the efficacy of glyburide, a stroke therapeutic, while reducing toxicity.

Conclusions:

  • ASNPs show high efficiency in penetrating the ischemic brain with low toxicity.
  • This nanotechnology holds potential for clinical translation in stroke treatment.