Mouse models in colon cancer, inferences, and implications

Area of Science:

• Oncology
• Genetics
• Immunology

Background:

• Mouse models are essential tools in colorectal cancer (CRC) research, facilitating gene discovery and anti-cancer drug development.
• The tumor microenvironment, including angiogenesis and immune components, significantly influences CRC progression and treatment efficacy.
• Recent advancements highlight the need to understand these microenvironments for effective late-stage disease management.

Purpose of the Study:

• To critically evaluate existing mouse models for colorectal cancer (CRC).
• To discuss the strengths and weaknesses of various CRC mouse model constructions.
• To predict the future utility of these models in CRC research, particularly for immunotherapy.

Main Methods:

• Review and synthesis of existing literature on CRC mouse models.
• Analysis of model construction, highlighting inherent advantages and limitations.
• Critical evaluation of model applicability for studying tumor microenvironments and metastatic processes.

Main Results:

• Identified key mouse models crucial for understanding CRC pathology and drug testing.
• Discussed the relevance of tumor, angiogenic, and immune microenvironments in CRC.
• Highlighted the limitations of current models in fully recapitulating human CRC complexity.

Conclusions:

• Genetically engineered mouse models are indispensable for advancing colorectal cancer (CRC) research.
• There is a clear need for immunocompetent and autochthonous mouse models to study the complex tumor microenvironment.
• Such advanced models are critical for the development of novel immunotherapies and checkpoint inhibitors in CRC treatment.