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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
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Polymalic Acid-based Nano Biopolymers for Targeting of Multiple Tumor Markers: An Opportunity for Personalized Medicine?
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Theranostic Bottle-Brush Polymers Tailored for Universal Solid-Tumor Targeting.

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  • 1School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, Guangdong, China.

ACS Nano
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Researchers developed novel polymeric nanoparticles that evade immune clearance, significantly enhancing tumor targeting and accumulation for improved cancer nanomedicine delivery and efficacy across multiple cancer types.

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Area of Science:

  • Biomaterials Science
  • Nanotechnology
  • Oncology

Background:

  • Targeting multiple cancer types with nanomedicines is challenging due to rapid clearance by the liver.
  • Poor tumor targeting leads to reduced efficacy and increased side effects.

Purpose of the Study:

  • To design and synthesize novel fluorescent bottle-brush polymers for cancer nanomedicine.
  • To evaluate nanoparticle (NP) performance for tumor imaging and targeted delivery.

Main Methods:

  • Synthesized fluorescent bottle-brush polymers with varying NP sizes and surface coatings.
  • Assessed NP blood circulation time, macrophage uptake, and tumor accumulation in vivo.
  • Evaluated antitumor efficacy and validated targeting across five distinct tumor models.

Main Results:

  • Optimized NPs exhibited reduced macrophage uptake and prolonged circulation time (up to 27 hours).
  • Achieved significantly higher tumor accumulation compared to liver accumulation.
  • Demonstrated improved antitumor efficacy and broad applicability in diverse cancer models.

Conclusions:

  • The developed polymeric nanocarrier demonstrates an effective immune-evasion-induced tumor-targeting mechanism.
  • This nanocarrier shows universal potential for enhanced tumor imaging and targeted delivery in various cancers.