Dissecting tumour pathophysiology using intravital microscopy

Area of Science:

• Oncology
• Cancer Biology
• Pharmacology

Background:

• Systemic therapeutic agents must overcome biological barriers to reach neoplastic cells.
• These barriers include blood circulation, vessel walls, extracellular matrix, and lymphatic clearance.
• Tumor barriers are abnormal, dynamic, and influenced by host-tumor interactions.

Purpose of the Study:

• To investigate the barriers encountered by systemically administered therapeutic agents in reaching neoplastic cells.
• To understand the dynamic and abnormal nature of these barriers within tumors.
• To explore how intravital microscopy can provide insights into overcoming these barriers for improved cancer treatment.

Main Methods:

• Utilizing intravital microscopy to visualize and analyze the behavior of therapeutic agents in vivo.
• Observing the interactions between neoplastic cells and the surrounding biological barriers.
• Studying the spatial and temporal changes in tumor microenvironment barriers.

Main Results:

• Intravital microscopy provides detailed molecular, cellular, anatomical, and functional insights into biological barriers.
• Abnormalities in blood circulation, vessel permeability, extracellular matrix, and lymphatic drainage in tumors are characterized.
• Host-tumor interactions significantly influence the nature and dynamics of these barriers.

Conclusions:

• Understanding tumor-specific biological barriers is crucial for effective drug delivery.
• Intravital microscopy is a powerful tool for dissecting these complex barriers.
• New therapeutic strategies can be developed based on insights gained from studying these barriers to improve cancer detection and treatment.