Autophagy in the crosstalk between tumor and microenvironment

Area of Science:

• Cell Biology
• Molecular Biology
• Cancer Research

Background:

• Autophagy is a fundamental cellular process for degrading and recycling damaged components.
• It is vital for cell homeostasis, particularly under stress.
• Autophagy can also mediate the secretion of cellular material.

Purpose of the Study:

• To review the complex role of autophagy in cancer.
• To analyze how tumor autophagy affects the tumor microenvironment.
• To examine the impact of stromal cell autophagy on tumor cells.

Main Methods:

• Literature review of autophagy's role in cancer.
• Analysis of studies on tumor-stroma interactions.
• Synthesis of current understanding of autophagy in tumorigenesis and metastasis.

Main Results:

• Autophagy initially suppresses tumorigenesis but promotes growth in established tumors.
• Tumoral autophagy influences the tumor microenvironment.
• Stromal autophagy affects tumor cell behavior and progression.

Conclusions:

• Autophagy's role in cancer is context-dependent, shifting from tumor suppressive to tumor-promoting.
• Understanding autophagy's bidirectional communication in the tumor microenvironment is crucial for cancer therapy.