Stimulus-Responsive Copper Complex Nanoparticles Induce Cuproptosis for Augmented Cancer Immunotherapy

Area of Science:

• Biomedical Engineering
• Cancer Biology
• Nanomedicine

Background:

• Cuproptosis is an emerging programmed cell death pathway with potential in cancer therapy.
• Current limitations in cuproptosis efficacy are due to inefficient delivery of copper ion carriers.

Purpose of the Study:

• To develop novel copper complex nanoparticles (Cu(I) NP) for efficient copper delivery into cancer cells.
• To investigate the potential of Cu(I) NP to induce cuproptosis and enhance anti-tumor immune responses.

Main Methods:

• Synthesis and characterization of copper complex nanoparticles (Cu(I) NP).
• In vitro assessment of Cu(I) NP-mediated copper delivery and induction of cuproptosis.
• Evaluation of mitochondrial dysfunction and DLAT aggregation.
• Analysis of immune responses and tumor growth suppression.

Main Results:

• Cu(I) NP demonstrated efficient delivery of copper complexes into cancer cells.
• Stimulus-responsive release of copper induced mitochondrial dysfunction and DLAT aggregation, leading to cuproptosis.
• Cu(I) NP treatment elicited significant anti-tumor immune responses and suppressed tumor growth.

Conclusions:

• Cu(I) NP represent a promising nanocarrier for copper delivery to induce cuproptosis.
• This strategy enhances cancer cell death and stimulates anti-tumor immunity.
• Cu(I) NP offer a novel therapeutic approach for cancer treatment.