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The respiratory zone of the human body, which stands in contrast to the conducting zone, comprises the structures that actively participate in the exchange of gases. The initiation of this zone is marked by the terminal bronchioles converging into respiratory bronchioles, the tiniest bronchiole classification. The respiratory bronchioles give way to the alveolar ducts that opens into a congregation of alveoli. Actively involved in gas exchange, alveoli resemble tiny sacs similar to clusters of...

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Updated: Feb 15, 2026

Isolation and In Vitro Culture of Murine and Human Alveolar Macrophages

Isolation and In Vitro Culture of Murine and Human Alveolar Macrophages

Published on: April 20, 2018

Alveolar Macrophages.

Nikita Joshi¹, James M Walter¹, Alexander V Misharin¹

¹Division of Pulmonary and Critical Care Medicine, Northwestern University, Chicago, IL, USA.

Cellular Immunology

|January 27, 2018

Summary

This summary is machine-generated.

Alveolar macrophages are key lung immune cells that clear pathogens and pollutants. Their development and lung environment critically influence their roles in lung health and disease.

Keywords:

Alveolar macrophages Macrophages

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Last Updated: Feb 15, 2026

Isolation and In Vitro Culture of Murine and Human Alveolar Macrophages

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Published on: April 20, 2018

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Published on: October 22, 2019

Area of Science:

Immunology
Pulmonary Biology
Cell Biology

Background:

Alveolar macrophages are the primary innate immune cells in lung alveoli.
They act as the first responders to inhaled pathogens and pollutants.
These macrophages also maintain lung homeostasis through functions like surfactant clearance.

Purpose of the Study:

To review the ontogeny and local lung environment's influence on alveolar macrophage function.
To explore the dual roles of alveolar macrophages in lung immunity and tissue homeostasis.
To understand how these factors shape alveolar macrophage contributions to lung health and disease.

Main Methods:

This is a review article, synthesizing existing research.
It examines the developmental origins of alveolar macrophages.
It analyzes the impact of the local lung microenvironment.

Main Results:

Alveolar macrophage identity and function are shaped by both developmental origin and the lung milieu.
These cells are crucial for initiating and resolving immune responses in the lung.
Non-immune homeostatic functions, such as surfactant clearance, are vital.

Conclusions:

Understanding alveolar macrophage ontogeny and environment is crucial for comprehending lung immunity and disease.
Targeting these cells holds potential for treating various lung conditions.
Alveolar macrophages are central players in maintaining lung health and responding to threats.