Neutrophil Imaging
Neutrophil Imaging - Related Videos
12:42
Imaging the Neutrophil Phagosome and Cytoplasm Using a Ratiometric pH Indicator
0 Views •
Cited by 13 •
2017
This manuscript describes a simple method to measure the phagosomal pH and area as well as the cytoplasmic pH of human and mouse neutrophils using the ratiometric indicator seminaphthorhodafluor (SNARF)-1, or S-1. This is achieved using live-cell confocal fluorescence microscopy and image analysis.
09:34
Intravital Imaging of Neutrophil Priming Using IL-1β Promoter-driven DsRed Reporter Mice
0 Views •
Cited by 1 •
2016
This current protocol employs fluorescent reporters, in vivo labeling, and intravital imaging techniques to enable monitoring of the dynamic process of neutrophil priming in living animals.
09:28
Imaging Neutrophils and Monocytes in Mesenteric Veins by Intravital Microscopy on Anaesthetized Mice in Real Time
0 Views •
Cited by 6 •
2015
We detail a protocol to monitor the behavior of neutrophils and monocytes in mesenteric veins under steady state and inflammatory conditions using intravital confocal microscopy on anaesthetized mice.
04:32
Induction and Visualization of Neutrophil Extracellular Traps in Pre-Labeled Neutrophils
0 Views •
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.
07:12
Neutrophil Isolation Protocol
0 Views •
Cited by 173 •
2008
Neutrophils are among the first cells to arrive on the site of inflammatory immune response, and their functions and mechanisms have been studied extensively in vitro. We demonstrate a standard density gradient separation method to isolate human neutrophils from whole blood using commercially available separation media.
FAQs
Time-lapse microscopy follows neutrophils as they move toward inflammatory cues, allowing researchers to examine directional migration and changing cellular behavior over time. These observations place chemotaxis within the broader immune response rather than treating it as a static endpoint. Comparing movement patterns with antimicrobial activities can help relate cellular dynamics to effective host defense or excessive inflammation.
Fluorescent labels and genetically encoded reporters make neutrophil structures, activities, or interactions visible during imaging. Their use enables researchers to connect a visual signal with events such as microbial uptake, granule release, or extracellular trap formation. This added temporal and spatial information helps distinguish when immune functions occur and how they relate to surrounding inflammatory processes.
These processes produce different observable cellular events that can be followed during imaging. Phagocytosis concerns neutrophil interaction with and uptake of microbes, degranulation reflects release of antimicrobial contents, and extracellular trap formation involves structures produced outside the cell. Monitoring each event separately helps investigators compare antimicrobial mechanisms instead of treating neutrophil activity as a single response.
A strong immune response can contribute to host defense while also producing excessive inflammation and tissue injury. Imaging provides a way to examine these outcomes together by linking neutrophil behavior and antimicrobial functions with the broader inflammatory response. This perspective is important when interpreting whether a response is protective, damaging, or potentially suitable for immune-modulating intervention.
A basic workflow combines microscopy with fluorescent labels or genetically encoded reporters, followed by image acquisition that can capture cellular behavior over time. Researchers then examine events such as migration, microbial interaction, granule release, or extracellular trap formation. The resulting observations connect dynamic cell behavior with antimicrobial function and support comparison of different immune or infection conditions.
Researchers use this approach when they need to observe how neutrophils respond to microbes rather than measuring immune activity only after the interaction has ended. Imaging can follow movement toward inflammatory cues, contact with microbes, and subsequent antimicrobial responses. These observations clarify the cellular dynamics of host defense and help investigators evaluate how infection-related interactions contribute to inflammation.
Treatment studies can use imaging to determine whether an intervention changes neutrophil behavior or antimicrobial activity. Researchers may examine altered migration, phagocytosis, degranulation, or extracellular trap formation while also considering signs of excessive inflammation and tissue injury. This provides functional evidence about how an immune-modulating treatment affects the balance between protective host defense and inflammatory damage.
In immunology and infection research, imaging can connect visible neutrophil dynamics with questions about microbial control, inflammatory disease, and treatment effects. It supports investigation of how immune responses unfold, which cellular activities accompany effective defense, and when inflammation becomes harmful. These findings can guide development of approaches intended to control inflammatory disease without ignoring antimicrobial function.