Microenvironment matters: insights from the FOSTER consortium on microenvironment-driven approaches to osteosarcoma...

Area of Science:

• Oncology
• Cancer Biology
• Immunology

Background:

• Osteosarcoma (OS) is a primary bone cancer with historically poor treatment outcomes.
• The tumor microenvironment (TME) significantly influences OS progression and resistance to therapy.
• Limited progress in OS treatment necessitates novel therapeutic approaches.

Purpose of the Study:

• To comprehensively review the multifaceted components of the OS tumor microenvironment.
• To elucidate the roles of the mesenchymal stromal, immune, hypoxic, and physical microenvironments in OS.
• To explore emerging therapeutic strategies targeting the OS TME, including immunotherapies.

Main Methods:

• Literature review of recent research on the OS tumor microenvironment.
• Analysis of molecular and cellular dynamics within the OS TME.
• Synthesis of information on therapeutic interventions targeting the OS TME.

Main Results:

• The OS TME comprises mesenchymal stromal cells, immune cells, hypoxic regions, and physical factors.
• These TME components collectively promote tumor proliferation, immune evasion, and metastasis.
• Targeting specific TME elements, such as through immunotherapy, shows therapeutic potential.

Conclusions:

• The OS tumor microenvironment is a critical determinant of disease progression and therapeutic response.
• Understanding the intricate OS TME dynamics is essential for developing effective treatments.
• Targeting the OS TME represents a promising avenue for improving patient outcomes in osteosarcoma.