Quantifying Pulmonary Microvascular Density in Mice Across Lobules

Chunyan Li; Zhu Wang; Junrong Du; Tao Jia

doi:10.3791/66681

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Biology

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JoVE Journal Biology

Quantifying Pulmonary Microvascular Density in Mice Across Lobules

小葉全体のマウスにおける肺微小血管密度の定量化

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10:00 min

January 3, 2025

DOI: 10.3791/66681-v

Chunyan Li¹, Zhu Wang^1,2, Junrong Du¹, Tao Jia¹

¹Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy,Sichuan University, ²Institute for Breast Health Medicine, West China Hospital,Sichuan University

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Overview

This study focuses on quantifying pulmonary microvascular density in mouse lung lobules, taking into account anatomical differences and age-related changes. Using isolectin B4 staining along with ImageJ analysis, the research aims to improve the accuracy of microvascular density measurements across different lobes of the lungs.

Key Study Components

Research Area

Pulmonary microvascular research
Aging-related changes in lung tissue
Potential therapies for lung diseases

Background

Importance of quantifying microvascular density in lung lobules
Challenges in traditional quantification methods
Advancements in imaging and tissue processing techniques

Methods Used

Isolectin B4 staining for microvascular analysis
Mouse lung tissue as the biological model
ImageJ software for quantification

Main Results

Provided a reliable protocol for microvascular density quantification
Highlighted anatomical differences and age-related variations in density
Enhanced understanding of microvascular changes relevant to diseases like asthma and COVID-19

Conclusions

The study offers a comprehensive approach to analyzing pulmonary microvascular density
Findings are relevant for advancing pulmonary disease research and treatment strategies

Frequently Asked Questions

What is the main goal of this research?

The primary goal is to quantify pulmonary microvascular density in mouse lung lobules, particularly focusing on anatomical differences and age-related changes.

What techniques are used in this study?

The study employs isolectin B4 staining and ImageJ analysis for microvascular density quantification.

Why is it important to study microvascular density in lungs?

Understanding microvascular density can provide insights into lung diseases and potential therapeutic strategies.

What challenges do traditional methods face?

Traditional methods often overlook variations in vascularization across different lung lobes and face issues like tissue damage.

How does this research contribute to existing knowledge?

It offers a reliable protocol and enhances understanding of microvascular changes connected to various lung diseases.

How does aging affect pulmonary microvascular density?

The study investigates how microvascular density varies with age, providing new insights into age-related lung changes.

What diseases are relevant to this research?

The research has implications for understanding diseases like asthma and COVID-19.

ここでは、イソレクチンB₄の単一染色を使用して、マウス全体の肺組織の肺微小血管密度の偏りのない定量を行うためのシンプルで経済的なプロトコルについて説明します。

私たちの研究は、イソレクチンB4染色とImageJ解析を用いて、解剖学的な違いや加齢に伴う変化を考慮しながら、様々なマウス肺小葉の肺微小血管密度を定量化することを目的としています。私たちが取り組んでいる主な問題は、さまざまな肺小葉の微小血管密度を正確に定量化する方法と、加齢に伴って小葉全体の微小血管密度にどのような変化が起こるかです。肺微小血管研究における最近の進歩には、組織の透明化および固定技術の改善、高度なイメージング、正確な定量のためのソフトウェアツールなどがあります。

これらの開発は、老化や喘息やCOVID-19などの関連疾患における微小血管の変化についての理解を深め、潜在的な治療法への洞察を提供します。主な課題は、病変の正確な位置特定、肺組織の適切な切片化、固定剤関連の組織損傷の軽減、および肺内皮細胞の特異的マーカーの欠如です。従来の方法では、さまざまな肺葉による内部の形状や血管新生の違いを見落としがちです。

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