Related Experiment Video
Updated: Aug 5, 2026
09:48
Monitoring of Nanodrug Accumulation in Murine Breast Cancer Metastases
Published on: August 23, 2024
Chiral Titanium Dioxide Nanoparticles Induce Breast Cancer Lung Metastasis
Dayu Yang1, Baimei Shi1, Yuxi Ge2
1State Key Laboratory of Food Science and Technology, International Joint Research Laboratory for Biointerface and Biodetection, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.
Advanced Materials (Deerfield Beach, Fla.)
|July 29, 2026
Summary
Chiral titanium dioxide nanoparticles (L-TiO2 NPs) accelerate breast cancer lung metastasis by triggering inflammation and altering the lung microenvironment. Careful evaluation of metastasis risk is crucial for chiral nanomedicine design.
Area of Science:
- Nanotechnology
- Oncology
- Immunology
Background:
- Chiral nanomaterials offer unique properties for biomedical applications.
- Breast cancer metastasis remains a significant challenge in cancer treatment.
Purpose of the Study:
- To investigate the effect of chiral titanium dioxide nanoparticles (L-TiO2 NPs) on breast cancer metastasis.
- To elucidate the underlying molecular mechanisms involving reactive oxygen species (ROS) and inflammatory pathways.
Main Methods:
- Fabrication of chiral titanium dioxide nanoparticles (TiO2 NPs).
- In vitro cellular experiments using MODE-K intestinal epithelial cells and 4T1-luc breast cancer cells.
- In vivo validation in a mouse model of breast cancer.
Main Results:
- L-TiO2 NPs entered intestinal cells via toll-like receptor 4, inducing ROS production.
- Activation of NF-κB and NLRP3 signaling pathways led to inflammatory mediator release.
- Epithelial-mesenchymal transition (EMT) in cancer cells and lung microenvironment remodeling were observed.
- Enhanced migration and adhesion of cancer cells, accelerating lung metastasis in vivo.
Conclusions:
- Chiral TiO2 NPs accelerate breast cancer lung metastasis by modulating the ROS-inflammatory signaling cascade.
- L-TiO2 NPs promote tumor cell migration and facilitate lung colonization.
- The design of chiral nanomedicines requires careful assessment of metastasis-inducing risks.
