Engineering Nanoparticles to Modulate Extracellular Matrix and Immune Components of the Tumor Microenvironment in...

Area of Science:

• Oncology
• Immunology
• Nanotechnology

Background:

• Cancer immunotherapy harnesses the immune system but faces limitations due to the immunosuppressive tumor microenvironment (TME).
• The TME contains diverse cellular and non-cellular components that promote tumor growth and treatment resistance.

Purpose of the Study:

• To provide a comprehensive overview of engineered nanoparticles in modulating the TME for enhanced cancer immunotherapy.
• To highlight the potential of nanocarriers in targeting specific TME components and restoring anti-tumor immunity.

Main Methods:

• Review of recent advances in nanotechnology for TME modulation.
• Exploration of nanoparticle interactions with cellular (immune cells, fibroblasts) and non-cellular (ECM, vasculature) TME components.

Main Results:

• Engineered nanoparticles can reprogram tumor-associated immune cells (T cells, dendritic cells, NK cells, macrophages).
• Nanocarriers can target cancer-associated fibroblasts, remodel vasculature, degrade extracellular matrix, and neutralize immunosuppressive mediators.
• Nanomaterials offer localized delivery, reduced toxicity, and improved therapeutic efficacy by reshaping the tumor landscape.

Conclusions:

• Rationally designed nanomaterials hold significant promise for overcoming TME-mediated resistance in cancer immunotherapy.
• Further research addressing challenges and safety considerations is crucial for clinical translation of these nanotechnologies.