Overview

This article presents a protocol for measuring the transmigration of monocytes across human endothelial monolayers and their maturation into foam cells. This method is valuable for assessing the atherogenic properties of monocytes from individuals with various disease conditions.

Key Study Components

Area of Science

Cardiovascular research
Cell biology
Immunology

Background

Monocytes play a crucial role in atherosclerosis.
Understanding their behavior can provide insights into cardiovascular diseases.
Transendothelial migration is a key process in monocyte function.
Foam cell formation is a significant event in atherogenesis.

Purpose of Study

To quantify the transendothelial migration of monocytes from human clinical samples.
To evaluate foam cell formation as a measure of atherogenic potential.
To assess the impact of various factors in blood on monocyte behavior.

Methods Used

Preparation of polymerized collagen gels from fresh collagen suspension.
Transmigration assays using human endothelial monolayers.
Quantification of foam cell formation via microscopy.
Flow cytometry for detailed analysis of cellular changes.

Main Results

Demonstrated the ability to measure monocyte transmigration effectively.
Showed that clinical samples can be analyzed from both fresh blood and stored cohorts.
Established a correlation between monocyte behavior and atherogenic risk.
Validated the use of microscopy and flow cytometry for quantifying foam cells.

Conclusions

This protocol provides a versatile approach for studying monocyte behavior in cardiovascular research.
It can help identify individuals at risk for acute coronary artery disease.
Future studies can leverage this method to explore therapeutic interventions.

Frequently Asked Questions

What is the significance of monocyte transmigration?

Monocyte transmigration is crucial for understanding their role in inflammation and atherosclerosis.

How can this method be applied in clinical settings?

It allows for the assessment of monocyte behavior in patients with different cardiovascular risks.

What techniques are used to quantify foam cell formation?

Both microscopy and flow cytometry are employed for accurate quantification.

Can this protocol be adapted for other cell types?

Yes, the method can be modified to study different immune cells and their functions.

What are the advantages of using clinical samples?

Clinical samples provide relevant insights into real-world disease mechanisms and patient variability.

Is this method suitable for high-throughput analysis?

Yes, the protocol can be adapted for high-throughput screening of samples.

Institution - Burnet Institute

Articles Published in JoVE