真空安定化イメージングシステムを用いた実験的急性肺損傷における肺微小循環の生体内広視野蛍光顕微鏡

Overview

This protocol describes the use of intravital fluorescence microscopy to study leukocyte-endothelial interactions and capillary perfusion in real-time. The technique allows for stable high-resolution imaging of the pulmonary microcirculation with minimal physical trauma.

Key Study Components

Area of Science

• Neuroscience
• Biology
• Imaging Techniques

Background

• Intravital fluorescence microscopy enables real-time observation of biological processes.
• Leukocyte-endothelial interactions are crucial for understanding immune responses.
• Capillary perfusion is essential for tissue health and function.
• The vacuum-stabilized lung imaging system minimizes trauma during imaging.

Purpose of Study

• To develop a protocol for imaging pulmonary leukocyte adhesion.
• To quantify capillary perfusion in vivo.
• To enhance understanding of microcirculatory dynamics in the lungs.

Methods Used

• Surgical preparation for imaging window creation.
• Application of vacuum grease to ensure a proper seal.
• Use of a vacuum pump to maintain constant suction.
• Incorporation of fiber optic cable for imaging.

Main Results

• Successful imaging of leukocyte adhesion in the pulmonary microcirculation.
• Quantification of capillary perfusion metrics.
• Demonstration of minimal physical trauma during imaging.
• High-resolution images obtained using the vacuum-stabilized system.

Conclusions

• The protocol provides a reliable method for studying pulmonary microcirculation.
• Intravital imaging can advance research on immune responses in the lungs.
• Future studies can build on this technique to explore related biological phenomena.

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