A core/shell/satellite anticancer platform for 808 NIR light-driven multimodal imaging and combined...

Area of Science:

• Nanotechnology
• Biomedical Engineering
• Materials Science

Background:

• Developing advanced nanocarriers for targeted cancer therapy is crucial.
• Multifunctional platforms offer synergistic therapeutic effects and improved imaging.

Purpose of the Study:

• To construct a novel multifunctional nanoplatform for combined chemotherapy and photothermal therapy.
• To evaluate the targeted drug delivery, responsive release, and synergistic anti-tumor effects.
• To assess the multimodal imaging capabilities for guiding therapy.

Main Methods:

• Conjugation of copper sulfide (CuS) nanoparticles and folic acid (FA) onto up-conversion nanoparticles (UCNPs).
• Loading of doxorubicin (DOX) for chemotherapy.
• Evaluation of pH and near-infrared (NIR) responsive drug release.
• In vitro and in vivo studies for therapeutic efficacy and imaging.

Main Results:

• The nanoplatform demonstrated targeted delivery of DOX to cancer cells via receptor-mediated endocytosis.
• Simultaneous chemotherapy and NIR-photothermal therapy (PTT) showed a synergistic anti-tumor effect.
• The platform exhibited up-conversion luminescence (UCL), computed tomography (CT), and magnetic resonance imaging (MRI) properties.
• Combined therapy significantly improved therapeutic efficacy compared to single therapies.

Conclusions:

• The constructed multifunctional nanoplatform is effective for imaging-guided cancer therapy.
• The synergistic effect of combined chemo- and PTT enhances therapeutic outcomes.
• This nanoplatform shows promise as a theranostic agent for cancer treatment.