Pmn Neutrophils
Pmn Neutrophils - Related Videos
11:20
Quantitative Assessment of Human Neutrophil Migration Across a Cultured Bladder Epithelium
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Cited by 8 •
2013
We developed an in vitro model that mimics an important component of the acute inflammatory response during infection of the bladder with uropathogenic Escherichia coli. The transuroepithelial neutrophil migration assay enables quantitative assessment of human neutrophil migration across bladder epithelia, cultured on permeable supports, in response to bacterial infection or chemoattractant substances.
08:26
A Simple and Efficient Method to Detect Nuclear Factor Activation in Human Neutrophils by Flow Cytometry
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Cited by 23 •
2013
Neutrophils are the most abundant leukocytes in blood. Neutrophils possess transcriptionally regulated functions such as production of proinflammatory cytokines and inhibition of apoptosis. These functions can be studied with the method presented here, which allows detection and quantification of nuclear factors by flow cytometry in isolated...
10:40
Studying Interactions of Staphylococcus aureus with Neutrophils by Flow Cytometry and Time Lapse Microscopy
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Cited by 25 •
2013
We present methods to study the effect of PSMs and other toxins secreted by Staphylococcus aureus on neutrophils using flow cytometry and fluorescence microscopy.
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.
07:12
Neutrophil Isolation Protocol
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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
Inflammatory signals initiate chemotaxis, the directed movement of PMN neutrophils toward affected tissue. This response positions the cells at sites where microbes are present, allowing local rather than random immune activity. In infection research, examining this movement helps connect inflammatory signaling with the arrival of the cells that provide rapid antimicrobial defense.
After recognizing a microbe, PMN neutrophils can engulf it through phagocytosis. They also release antimicrobial granules and reactive oxygen species, creating complementary mechanisms for microbial control. Studying these responses separately and together helps researchers evaluate whether neutrophils are recognizing, internalizing, and chemically damaging infectious agents during host defense.
PMN neutrophils can form extracellular traps that immobilize pathogens outside the cell. This provides a defense mechanism distinct from engulfment because the cell does not need to internalize every target for the pathogen to be restrained. In immunology studies, extracellular trap formation is therefore relevant to both pathogen control and potential immune dysregulation.
Measurements of chemotaxis, phagocytosis, antimicrobial granule release, reactive oxygen species, or extracellular trap formation can reveal different aspects of neutrophil activity. These readouts help distinguish movement, microbial uptake, antimicrobial action, and pathogen immobilization. Together, they support investigation of host defense, acute inflammation, tissue injury, and immune dysregulation in infection-related research.
Their abundance in circulation, short lifespan, and measurable functional responses make PMN neutrophils useful targets in diagnostic assays. Researchers can examine their numbers or responses to obtain information about immune activity. These properties also support studies of infectious and inflammatory disease, where changes in neutrophil behavior may provide relevant experimental or diagnostic signals.
Research commonly connects PMN neutrophil abundance with functional measurements such as movement toward affected tissue, microbial engulfment, antimicrobial release, reactive oxygen species production, or extracellular trap formation. This combination provides context beyond cell counts alone. It helps investigators examine how neutrophils contribute to host defense while also relating their activity to acute inflammation, tissue injury, and immune dysregulation.