Neutrophil Elastase Staining
Neutrophil Elastase Staining - Related Videos
04:32
Induction and Visualization of Neutrophil Extracellular Traps in Pre-Labeled Neutrophils
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2025
This video demonstrates the induction and visualization of neutrophil extracellular traps or NETs in pre-labeled neutrophils using patient serum containing anti-neutrophil cytoplasmic antibodies. Furthermore, using an impermeable DNA dye and fluorescence microscopy enables the visualization of NETs.
09:23
Monitoring Neutrophil Elastase and Cathepsin G Activity in Human Sputum Samples
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Cited by 7 •
2021
The protocols herein described provide a guide to visualize and quantify the activity of neutrophil proteases in human sputum. The applications of such analysis span from the evaluation of anti-inflammatory treatments, to biomarker validation, drug screening and large cohort clinical studies.
07:18
Quantifying Myeloperoxidase-DNA and Neutrophil Elastase-DNA Complexes from Neutrophil Extracellular Traps by Using a Modified Sandwich ELISA
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Cited by 12 •
2023
We present a protocol for a modified sandwich enzyme-linked immunosorbent assay technique to quantitatively measure two components of neutrophil extracellular trap remnants, myeloperoxidase conjugated-DNA and neutrophil elastase conjugated-DNA complexes,derived from activated neutrophils.
14:17
Neutrophil Extracellular Traps: How to Generate and Visualize Them
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Cited by 296 •
2010
Neutrophil Extracellular Traps (NETs) are an important innate immune mechanism to fight pathogenic bacteria, fungi and parasites. Here we describe methods to isolate neutrophil granulocytes from human blood and to activate them to form NETs. We present preparation techniques to visualize NETs in light and electron microscopy.
10:23
Creation of Murine Experimental Abdominal Aortic Aneurysms with Elastase
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Cited by 55 •
2009
This video shows how to induce abdominal aortic aneurysms (AAA) in mice via transient intraluminal infusion of porcine pancreatic elastase into the infrarenal segment of the abdominal aorta. The model has the ability to add broad insight into the pathobiology of AAA due to the emergence of numerous transgenic and gene knockout mice.
FAQs
Specific antibodies bind to neutrophil elastase within the examined cells or tissue, allowing the detection system to mark its precise location. This antibody-based recognition distinguishes the target enzyme from surrounding tissue components and makes the resulting signal interpretable under microscopy. The approach therefore supports cellular localization rather than relying only on general tissue appearance.
Chromogenic detection produces a visible colored reaction that can be examined by conventional microscopy, whereas fluorescent detection marks the target with a signal detected through fluorescence microscopy. Both approaches reveal where neutrophil elastase is distributed, but the selected system affects how the signal is visualized and documented during tissue analysis.
Signal intensity and localization provide complementary information. Signal distribution can show where neutrophil elastase occurs within cells or tissue, while stronger or more prominent staining may help indicate differences in neutrophil presence or activation. Interpretation should therefore consider both the amount of visible signal and its anatomical position rather than treating intensity alone as the complete result.
Mapping neutrophil elastase against tissue structures shows where neutrophil-associated activity occurs relative to altered architecture. This spatial information can connect inflammatory-cell distribution with tissue injury or pathological changes. In medical research, that relationship helps investigators examine how neutrophil-rich processes are situated within affected tissue rather than evaluating inflammation without anatomical context.
The workflow begins with a cell or tissue sample, followed by exposure to antibodies that recognize neutrophil elastase. A chromogenic or fluorescent detection step then makes the bound target visible, and microscopy is used to assess its distribution. The final interpretation considers staining location and signal intensity in relation to the sampled tissue.
This method is useful when investigators need to assess acute inflammation, infection, tissue injury, or diseases characterized by abundant neutrophils. It can also support studies of immune-cell behavior and pathological tissue changes. By revealing the distribution of neutrophil elastase, the assay adds cellular and spatial information to broader examination of affected samples.
Microscopy can show whether neutrophil elastase is present, where it is localized, and how strong the associated signal appears. These findings may help indicate neutrophil accumulation or activation within a sample and can be compared with tissue architecture. Consequently, the technique provides both cellular evidence and spatial context for studying inflammatory or injury-related pathology.