Inflammation, Extracellular Matrix Remodeling, and Proteostasis in Tumor Microenvironment

Area of Science:

• Oncology
• Cell Biology
• Biochemistry

Background:

• Cancer is characterized by uncontrolled cell growth and reduced apoptosis.
• The tumor microenvironment often features inflammation, influencing cancer progression.
• The extracellular matrix (ECM) undergoes significant alterations in cancer.

Purpose of the Study:

• To review the role of extracellular matrix (ECM) components in the tumor microenvironment.
• To highlight the impact of inflammation on ECM-degrading enzymes and hyaluronan metabolism.
• To explore the function of extracellular chaperones, like clusterin, in cancer signaling.

Main Methods:

• Literature review focusing on extracellular matrix components in cancer.
• Analysis of signaling pathways involving hyaluronan-receptor interactions.
• Examination of the role of extracellular chaperones in tumor proteostasis and signaling.

Main Results:

• Altered ECM components interact with surface receptors, promoting cancer cell survival and metastasis.
• Pro- and anti-inflammatory factors modulate ECM-degrading enzymes, including metalloproteases.
• Hyaluronan metabolism and its receptor signaling are critical in the tumor microenvironment.
• Extracellular clusterin plays a role in proteostasis and signal transduction within tumors.

Conclusions:

• ECM remodeling and associated signaling pathways are crucial for tumor growth and metastasis.
• Components of the tumor microenvironment, despite diverse roles, converge on common signaling pathways.
• Targeting ECM interactions and signaling could offer therapeutic strategies against cancer progression.