The solid tumor microenvironment and related targeting strategies: a concise review

Area of Science:

• Oncology
• Cancer Biology
• Immunology

Background:

• The tumor microenvironment (TME) critically influences tumor progression, including proliferation, apoptosis resistance, immune evasion, and metastasis.
• Despite its importance, a deep understanding of TME component characteristics and their interrelationships is lacking.
• Targeting the TME requires comprehensive knowledge of its constituents and their roles in tumor growth.

Purpose of the Study:

• To innovatively classify the TME into distinct physical, mechanical, metabolic, inflammatory, and immune microenvironments.
• To elucidate the characteristics of each TME component and their detection methods.
• To highlight current therapeutic strategies, potential targets, challenges, and future directions for TME research.

Main Methods:

• Classification of the TME into five key categories: physical, mechanical, metabolic, inflammatory, and immune.
• Depiction of the characteristics of individual TME components.
• Summary of current detection methodologies for TME constituents.
• Review of existing and potential therapeutic strategies targeting the TME.

Main Results:

• A novel, comprehensive classification system for the TME is introduced.
• Detailed descriptions of the characteristics of physical, mechanical, metabolic, inflammatory, and immune microenvironments are provided.
• Current strategies and potential therapeutic targets within the TME are highlighted.

Conclusions:

• A deeper understanding of TME components and their interactions is essential for effective cancer therapy.
• The proposed classification provides a framework for future research and clinical applications of TME-targeted treatments.
• Addressing current challenges in TME research will unlock significant clinical benefits and advance cancer treatment strategies.