Cell Labeling Techniques
Cell Labeling Techniques - Related Videos
03:59
Bromodeoxyuridine Pulse Labelling Assay: A Technique to Measure Cell Proliferation
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2023
The video describes the stepwise pulse labeling assay of mammalian cells with bromodeoxyuridine (BrdU) for measuring cell proliferation. The BrdU uptake permits the temporal tracking of cells that were in the synthesis phase at a specific point in time, without requiring the cells to be synchronized.
09:09
A Label-free Technique for the Spatio-temporal Imaging of Single Cell Secretions
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Cited by 5 •
2015
Inter-cellular communication is critical for controlling various physiological activities within and outside the cell. This paper describes a protocol for measuring the spatio-temporal nature of single cell secretions. To achieve this, a multidisciplinary approach is used which integrates label-free nanoplasmonic sensing with live cell imaging.
03:44
A Double-Labeling Immunofluorescence Technique to Visualize Host and Pathogen Proteins in an Infected Cell
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2025
This video showcases double-labeling immunostaining with two different primary antibodies raised in the same species, binding specifically to parasite and host proteins. Furthermore, labeled secondary antibodies targeting these primary antibodies allow the distinct visualization of host and parasite proteins, facilitating the study of host-pathogen interaction.
09:17
Labeling and Imaging Cells in the Zebrafish Hindbrain
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Cited by 7 •
2010
Key to understanding the morphogenetic processes that shape the early embryo is the ability to image cells at high resolution. We describe here a technique for labeling single cells or small clusters of cells in whole zebrafish embryos with membrane-targeted Green Fluorescent Protein.
10:38
Label-free Isolation and Enrichment of Cells Through Contactless Dielectrophoresis
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Cited by 19 •
2013
Contactless dielectrophoresis (cDEP) achieves sorting and enrichment of particles via their intrinsic dielectric properties. Fluidic electrode channels replace metallic electrodes traditional to DEP, suiting cDEP to non-damaging sterile characterization and sorting of biological particles. We demonstrate how to prepare a cDEP microdevice and conduct cell characterization and sorting experiments.
FAQs
The label determines how a cell becomes detectable and what information can be extracted. Fluorescent dyes provide signals for imaging or measurement, whereas antibody-conjugated probes use binding to specific surface molecules. Genetically encoded reporters generate detectable signals from within labeled cells. Choosing among these approaches affects whether investigators emphasize cell identity, localization, or changes in labeled-cell numbers.
Specificity comes from matching the labeling strategy to a distinguishing cellular feature. Antibody-conjugated probes can bind selected surface molecules, helping researchers distinguish immune-cell populations within complex samples. This selectivity is especially important in infection studies, where host cells, pathogens, and different immune populations may occupy the same sample. Better targeting supports clearer characterization of cellular responses.
Microscopy uses detectable labels to visualize cells or cellular interactions in their spatial context, while flow cytometry supports identification and distinction of labeled populations in a sample. Consequently, microscopy is useful for examining localization and host-pathogen interactions, whereas flow cytometry is useful for characterizing population-level patterns. Using either approach depends on whether spatial structure or population composition is the main outcome.
Tracking labeled cells over time can expose changes that a single observation would miss. In infection research, these measurements may reveal infection dynamics; in immunology, they can indicate evolving immune responses. Comparing patterns across experimental conditions can also show treatment effects, helping investigators assess whether an antimicrobial or immunomodulatory intervention changes the cellular course of an experiment.
A basic workflow links the biological question to a suitable label, applies that label to the relevant cells or cellular components, detects the resulting signal with microscopy or flow cytometry, and quantifies the labeled population when time-based comparison is needed. The selected binding target or reporter should match the cells being distinguished and the outcome being measured.
They are especially useful when researchers need to distinguish immune-cell populations, follow their migration, or visualize interactions between host cells and pathogens. Labeling also supports monitoring of immune-cell activation and infection-related changes in complex samples. These capabilities connect cellular observations with broader questions about host responses, pathogen behavior, and the effects of experimental interventions.
Quantified labeling results can provide evidence for how infection or an immune response changes under defined conditions. In applied research, such measurements support diagnostics, vaccine development, and evaluation of antimicrobial or immunomodulatory therapies. The value comes from linking detectable cellular patterns with infection dynamics, immune activity, or treatment effects, allowing researchers to compare biological outcomes across experiments.