简介：
Overview
This article presents a standardized protocol for characterizing the cellular composition of late-stage murine atherosclerotic lesions. The methods include systematic animal dissection, tissue embedding, sectioning, staining, and analysis of brachiocephalic arteries from atheroprone smooth muscle cell lineage tracing mice.
Key Study Components
Area of Science
- Neuroscience
- Cell Biology
- Pathology
Background
- Atherosclerosis is a complex disease characterized by the accumulation of lipids and inflammatory cells in arterial walls.
- Understanding the cellular composition of atherosclerotic lesions is crucial for developing targeted therapies.
- Standardized protocols enhance reproducibility and comparability of research findings.
- Immunofluorescent staining allows for detailed analysis of cell types within tissues.
Purpose of Study
- To provide a reliable method for dissecting and analyzing atherosclerotic lesions in mice.
- To facilitate the phenotypic characterization of cellular populations in disease tissues.
- To improve the accuracy of qualitative and quantitative analyses of cell types.
Methods Used
- Animal dissection and preparation for brachiocephalic artery harvest.
- Perfusion with PBS and paraformaldehyde for tissue fixation.
- Immunofluorescent staining of tissue sections for cellular analysis.
- Image acquisition and analysis using confocal microscopy and ImageJ software.
Main Results
- Successful isolation and staining of brachiocephalic arteries from murine models.
- Quantitative analysis of cell populations within atherosclerotic lesions.
- Demonstration of the protocol's effectiveness in characterizing complex disease tissues.
- Establishment of a reproducible method for future studies in atherosclerosis.
Conclusions
- The standardized protocol enhances the understanding of cellular dynamics in atherosclerosis.
- It serves as a valuable resource for researchers studying similar disease models.
- Future applications may include testing therapeutic interventions targeting specific cell types.
What is the significance of this protocol?
This protocol standardizes the analysis of atherosclerotic lesions, improving research reproducibility.
How does immunofluorescent staining contribute to this study?
It allows for detailed visualization and quantification of specific cell types within the lesions.
What are the main steps in the tissue preparation process?
The main steps include dissection, perfusion, fixation, embedding, sectioning, and staining.
Who demonstrated the procedure?
The procedure was demonstrated by Sidney Mahan, a technician from the laboratory.
What tools are used for image analysis?
ImageJ software is used for analyzing the acquired images and quantifying cell populations.
Can this protocol be applied to other disease models?
Yes, the protocol can be adapted for studying other complex disease tissues.
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