Lung Tissue Processing
Lung Tissue Processing - Related Videos
05:33
Lung-tumor Tissue Explant Culture: A Procedure to Generate and Culture Precision-cut Lung Tumor Slices
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2023
Organotypic primary tissue explant cultures, which include precision-cut slices, represent the three-dimensional (3-D) tissue architecture as well as the multicellular interactions of native tissue. This video describes the culturing of murine lung tumor-derived tissue slices using a rotating incubation unit, a system that enables intermittent exposure of tissues to oxygen and nutrients. The protocol describes the methodology to generate and culture precision-cut lung tumor slices for drug...
11:10
Micro-Mechanical Characterization of Lung Tissue Using Atomic Force Microscopy
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Cited by 127 •
2011
The stiffness of the extracellular matrix strongly influences multiple behaviors of adherent cells. Matrix stiffness varies spatially throughout a tissue, and undergoes modification in various disease conditions. Here we develop methods to characterize spatial variations in stiffness in normal and fibrotic mouse lung tissue using atomic force microscopy microindentation.
03:03
Pig Bronchiolar Tissue Extraction: A Procedure to Dissect Bronchiolar Tissue Sections From Porcine Lungs
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2025
In this video, we describe a surgical procedure to extract bronchiolar tissues from harvested pig lung. The ex vivo bronchiolar tissue could be used to develop infection models for studying chronic lung infections.
03:48
Mouse Lung Preparation for Flow Cytometry: Generating Cell Suspension from Lung Tissue for Flow Cytometric Analysis
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2023
This video describes the preparation of mouse lung cell suspension for flow cytometric analysis to study PD-L1 expression of lung adenocarcinoma cells.
03:16
Processing of Infected Tissues for Bacterial Enumeration in a Mouse Co-Infection Model
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2026
Source: Lenhard, A., et al. A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness. J. Vis. Exp. (2022)This video demonstrates the processing of lungs from a mouse co-infected with a pathogenic bacterium and a virus. Mincing, homogenizing, and plating the lung tissue allows quantification of bacterial load, indicating bacterial spread to the lungs and disease severity.
FAQs
Fixation stabilizes lung tissue so that its architecture and biomolecules remain suitable for later examination. This preservation step supports staining and imaging while helping maintain the structural context needed to interpret cell types and disease-related changes. If preservation is inadequate, downstream microscopic or molecular findings may no longer represent the original specimen accurately.
Processing conditions should be chosen according to the intended analysis and selected to limit tissue distortion and biomolecular degradation. This matters because altered architecture can complicate microscopic interpretation, while degraded biomolecules can reduce the suitability of material for molecular assays. Careful control therefore helps ensure that observed differences reflect biology rather than preparation-related damage.
Lung tissue processing can support different analytical goals, so the desired endpoint should guide the workflow. Microscopic and histological studies prioritize interpretable tissue architecture and cell distribution, whereas molecular analysis requires preservation of relevant biomolecules. Recognizing this distinction helps investigators select processing conditions that keep specimens compatible with the assay planned.
Processed lung specimens can reveal tissue architecture, cell types, and disease-related changes within their structural context. These observations can then be related to lung function and disease mechanisms, making tissue-level findings more informative than measurements considered without their anatomical setting. The resulting analysis can connect cellular changes with broader alterations in respiratory biology.
A typical workflow moves from preservation to fixation and then sectioning, with each stage preparing the specimen for later analysis. The processed material may subsequently be used for staining, imaging, or downstream assays. Keeping these stages consistent is important because the final sections must retain enough structure and biomolecular quality for the selected form of examination.
Consistency is central when lung specimens come from multiple samples or experimental conditions. Applying comparable processing helps reduce preparation-related variation and improves the comparability of structural, cellular, and molecular results. This makes it easier to determine whether differences between specimens reflect genuine biological changes, such as inflammation or fibrosis, rather than inconsistent handling.
In biology, the approach is relevant across respiratory development, infection, inflammation, fibrosis, cancer, and toxicology. It can connect microscopic or molecular observations with changes in lung structure and function, allowing researchers to investigate how disease-related processes appear in tissue. The same general purpose supports both developmental studies and analyses of pathological or exposure-related change.