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Related Experiment Video

Updated: May 10, 2025

Modeling Ovarian Cancer Multicellular Spheroid Behavior in a Dynamic 3D Peritoneal Microdevice
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Nanomotor-driven precision therapy for peritoneal metastasis.

Yaoguang She1, Jianxin Cui2, Jiamin Ye3

  • 1Department of General Surgery, First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China; Medical School of Chinese PLA, Beijing, 100853, China.

Biomaterials
|April 26, 2025
PubMed
Summary
This summary is machine-generated.

A novel nanomotor drug delivery system effectively targets peritoneal metastasis (PM) in gastrointestinal cancers. This biomimetic system enhances drug delivery, activates immune responses, and significantly inhibits tumor growth, offering a promising new therapeutic approach.

Keywords:
Nanocatalytic therapyNanomotorNanozymePeritoneal metastasisSTING pathway

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Oncology

Background:

  • Peritoneal metastasis (PM) is a late-stage cancer with poor prognosis.
  • Current treatments like surgery and chemotherapy have limitations and risks.

Purpose of the Study:

  • To develop and evaluate a novel nanomotor-based drug delivery system for enhanced peritoneal metastasis treatment.
  • To investigate the system's targeting precision, tumor penetration, and therapeutic efficacy.

Main Methods:

  • Fabrication of a biomimetic nanomotor (M@MnO2-Au-mSiO2@CDDP) using M1 macrophage membranes.
  • Utilizing oxygen-driven nanomotors for targeted intraperitoneal drug delivery.
  • In vitro and in vivo studies including gastric cancer organoid models.

Main Results:

  • The nanomotor system demonstrated high precision targeting and deep tumor penetration.
  • Significant inhibition of tumor growth, induction of apoptosis, and activation of immune responses were observed.
  • Synergistic effects of targeted delivery, catalytic therapy, and immunotherapy were confirmed.

Conclusions:

  • The nanomotor system shows great potential for treating peritoneal metastasis with enhanced efficacy and biocompatibility.
  • This nanotechnology-based approach offers a promising alternative to traditional cancer therapies.
  • Further clinical applications for targeted cancer therapies are anticipated.