Lung Infection
Lung Infection - Related Videos
08:50
Direct Observation of Phagocytosis and NET-formation by Neutrophils in Infected Lungs using 2-photon Microscopy
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Cited by 21 •
2011
We show, how to use 2-photon microscopy for the observation of the dynamics of neutrophil granulocytes in infected lungs while they phagocytose pathogens or produce neutrophil extracellular traps (NETs).
07:45
Modeling Dysplastic and Functional Lung Alveolar Repair after Influenza Infection
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2025
This protocol provides instructions for intranasal administration of IAV and downstream analysis of mouse lung damage and associated transcriptional changes to lung cell types.
03:07
Development of a Rat Lung Infection Model Using Intratracheal Bacterial Inoculation
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2026
Source: Nguyen, J. Q., et. al. Intratracheal Inoculation of Fischer 344 Rats with Francisella tularensis. J. Vis. Exp. (2017)This video demonstrates the procedure of intratracheal inoculation in an anesthetized rat, involving catheter placement, bacterial delivery into the trachea, and subsequent lung infection establishment for studying host-pathogen interactions.
03:06
Preparation of a Murine Oropharyngeal Aspiration Model to Establish Bacterial Lung Infections
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2026
Source: Nielsen, T. B., et al., Murine Oropharyngeal Aspiration Model of Ventilator-associated and Hospital-acquired Bacterial Pneumonia. J. Vis. Exp. (2018)This video demonstrates the procedure of delivering bacteria through the oropharynx into the lungs of an anesthetized mouse to induce lung infection and trigger an immune response.
10:10
A 3D Human Lung Tissue Model for Functional Studies on Mycobacterium tuberculosis Infection
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Cited by 40 •
2015
Human tuberculosis infection is a complex process, which is difficult to model in vitro. Here we describe a novel 3D human lung tissue model that recapitulates the dynamics that occur during infection, including the migration of immune cells and early granuloma formation in a physiological environment.
FAQs
Initial control depends on coordinated local defenses. Mucociliary clearance helps remove material from respiratory passages, while epithelial cells and macrophages participate in early recognition and response. When microorganisms overcome these barriers, innate signaling recruits leukocytes and promotes inflammation. This sequence helps explain how infection can progress toward alveolar involvement and impaired gas exchange.
Cytokines help coordinate the inflammatory response by communicating between activated cells and recruited leukocytes. Their effects can support pathogen control, but inflammation in lung tissue may also interfere with efficient gas exchange. Immunology research therefore examines both protective cellular responses and tissue injury, an important distinction when considering therapies that limit harmful damage.
Adaptive immunity adds pathogen-specific control after innate responses have been activated. Unlike the broader early response involving epithelial cells, macrophages, cytokines, and recruited leukocytes, it supports recognition directed toward the infecting microorganism. This distinction matters because lung infection research links immune specificity with pathogen control and the development of vaccination strategies.
Studies of Lung Infection can connect microbial invasion with host responses and clinical consequences such as inflammation and impaired gas exchange. In the broader research context, these studies support diagnostic strategies, evaluation of antimicrobial treatment, vaccine development, and therapies designed to reduce harmful tissue damage. Their value lies in linking mechanism to actionable outcomes.
Determining whether bacteria, viruses, fungi, or other microbes are involved provides a foundation for interpreting the host response and planning research questions. Different pathogen types are relevant to diagnostic strategies and antimicrobial treatment, while immune studies examine how epithelial cells, macrophages, cytokines, and leukocytes respond. This connection helps relate microbial cause to inflammation and disease impact.
Within immunology and infection research, the key question is how pathogens interact with respiratory tissues and how host defenses shape disease. Studying that interaction brings together innate and adaptive immunity, pathogen-specific control, gas-exchange consequences, and strategies for vaccination or limiting tissue damage. This makes the topic relevant to both mechanistic and translational research.