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Related Experiment Video

Updated: Jul 27, 2025

Design, Fabrication, and Administration of the Hand Active Sensation Test HASTe
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H

Yujia Liang1, Zhengmin Cai1, Yamei Tang1

  • 1Guangxi Medical University Cancer Hospital, Nanning, China.

Frontiers in Bioengineering and Biotechnology
|June 9, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces a novel nanoplatform for cancer therapy. It enhances reactive oxygen species (ROS) generation to combat tumor microenvironments, improving anticancer treatment efficacy.

Keywords:
CaO2H2O2/O2 self-supplyMOFschemodynamic therapyphotodynamic therapy

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Oncology

Background:

  • Reactive oxygen species (ROS)-mediated therapies show promise for noninvasive tumor treatment due to selectivity and efficiency.
  • The efficacy of ROS-based therapies is often limited by the harsh tumor microenvironment (TME).
  • Developing strategies to overcome TME limitations is crucial for enhancing anticancer treatment outcomes.

Purpose of the Study:

  • To develop a biodegradable nanoplatform for enhanced cancer therapy.
  • To address the challenges posed by the tumor microenvironment in ROS-mediated treatments.
  • To create a synergistic approach combining chemodynamic therapy (CDT) and photodynamic therapy (PDT).

Main Methods:

  • Synthesis of a biodegradable Cu-doped zeolitic imidazolate framework-8 (ZIF-8) nanoplatform.
  • Loading of photosensitizer Chlorin e6 (Ce6) and CaO2 nanoparticles onto the ZIF-8 framework.
  • Surface decoration with hyaluronic acid (HA) to create the HA/CaO2-Ce6@Cu-ZIF nano-platform.
  • Evaluation of the nano-platform's response to the acidic tumor microenvironment and its therapeutic effects.

Main Results:

  • The HA/CaO2-Ce6@Cu-ZIF nano-platform releases Ce6 and CaO2 in acidic tumor environments.
  • Released CaO2 decomposes to H2O2 and O2, alleviating tumor hypoxia and enhancing ROS production.
  • Cu2+ sites promote chemodynamic therapy (CDT), while Ce6 induces photodynamic therapy (PDT).
  • Released Ca2+ contributes to oxidative stress and mitochondrial dysfunction, amplifying therapeutic effects.
  • The nanoplatform demonstrates a cascade-amplified CDT/PDT synergistic strategy.

Conclusions:

  • The developed ZIF-based nanoplatform effectively overcomes TME limitations for enhanced anticancer therapy.
  • The synergistic combination of CDT and PDT, amplified by H2O2/O2 self-supply and Ca2+ overloading, shows significant therapeutic potential.
  • This approach offers a promising strategy for highly efficient anticancer treatment.