3D-3 Tumor Models in Drug Discovery for Analysis of Immune Cell Infiltration

Area of Science:

• Oncology
• Immunology
• Biotechnology

Background:

• Tumor microenvironment interactions critically impact cancer progression and treatment outcomes.
• Standard 2D cell cultures inadequately represent in vivo complexity for studying cell-cell communication.
• Reactivating the patient's immune system is a key therapeutic goal.

Purpose of the Study:

• To highlight the utility of novel three-dimensional (3D) in vitro models for cancer research.
• To demonstrate how 3D models can elucidate tumor microenvironment interactions.
• To present 3D models as a tool for studying cancer immune modulation.

Main Methods:

• Development and utilization of advanced 3D in vitro models, including matrix-embedded or alginate-encapsulated systems.
• Co-culture of tumor cells, stromal cells (fibroblasts), and immune cells (T, NK, macrophages) in 3D systems (3D-3).
• Application of 3D models to investigate molecular crosstalk, macrophage plasticity, and drug responses.

Main Results:

• 3D in vitro models, such as 3D-3 systems, effectively recapitulate in vivo tumor microenvironment complexity.
• These models facilitate the study of molecular mechanisms underlying cancer cell-host cell interactions.
• 3D models have been successfully used to study non-small cell lung cancer (NSCLC) and fibroblast crosstalk, macrophage plasticity, and in vivo drug responses.

Conclusions:

• Novel 3D in vitro models offer a superior platform for studying complex tumor microenvironment dynamics compared to traditional 2D cultures.
• 3D models are essential for advancing research in cancer immune modulation, including immune cell infiltration and activation.
• The described 3D systems provide a reliable tool for investigating therapeutic strategies and reducing treatment failure.