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Live or Dead™ Fixable Dead Cell Staining Kit *Blue Fluorescence*

Our Live or Dead™ Fixable Dead Cell Staining Kits are a set of tools for labeling cells for fluorescence microscopic investigations of cell functions. The effective labeling of cells provides a powerful method for studying cellular events in a spatial and temporal context. This particular kit is designed to uniformly label fixed mammalian cells in blue fluorescence for long term microscopic examination. The kit uses a proprietary blue fluorescent dye that is more fluorescent upon bonding to cellular components. The fluorescent dye used in the kit is quite photostable so that the images can be repeatedly examined. The kit provides all the essential components with an optimized cell-labeling protocol. It is an excellent tool for preserving of fluorescent images of particular cells, and can also be used for fluorescence microscope demonstrations.

Example protocol

AT A GLANCE

Protocol summary

  1. Prepare samples in HHBS (0.5 mL/assay)
  2. Replace with HHBS
  3. Add Stain It™ Blue to the cell suspension
  4. Stain the cells at room temperature or 37°C for 20 - 60 minutes
  5. Wash the cells
  6. Fix the cells (optional)
  7. Examine the sample with flow cytometer and/or fluorescence microscope using the appropriate Excitation/Emission filter

Important notes
Thaw all the components at room temperature before starting the experiment.

PREPARATION OF STOCK SOLUTION

Unless otherwise noted, all unused stock solutions should be divided into single-use aliquots and stored at -20 °C after preparation. Avoid repeated freeze-thaw cycles.

1. Stain It™ Blue stock solution (500X):
Add 200 µL DMSO (Component B) into the vial of Stain It™ Blue (Component A) to have 500X Stain It™ Blue stock solution.

For guidelines on cell sample preparation, please visit
https://www.aatbio.com/resources/guides/cell-sample-preparation.html

SAMPLE EXPERIMENTAL PROTOCOL

Table 1. Fluorescence spectra properties and suggested excitation laser for flow cytometry analysis

Cat. #DescriptionEx (nm)Em (nm)Excitation Source
22500Blue Fluorescence with 405 nm Excitation410450405 nm
22501Green Fluorescence with 405 nm Excitation408512405 nm
22502Orange Fluorescence with 405 nm Excitation398550405 nm
22599Red Fluorescence Optimized for Flow Cytometry523617488 nm
22600Blue Fluorescence353442335 nm
22601Green Fluorescence498521488 nm
22602Orange Fluorescence547573561 nm or 488 nm
22603Red Fluorescence583603 561 nm
22604Deep Red Fluorescence649660633 nm
22605Near Infrared Fluorescence749775633 nm 
  1. Prepare cells using 1X Hanks and 20 mM Hepes buffer (HHBS) or sodium azide-free and serum/protein-free buffer of your choice.

  2. Wash cells once with HHBS or the azide- and serum/protein-free buffer of your choice.

  3. Resuspend cells at 5 - 10 × 106/mL in HHBS or in the azide- and serum/protein-free buffer of your choice.

  4. Add 1 µL of 500X Stain It™ Blue stock solution to 0.5 mL of cells/assay and mix it well.

  5. Incubate at room temperature or 37°C, 5% CO2 incubator for 20 - 60 minutes, protected from light. Note: The optimal stain concentrations and incubation time should be experimentally determined for different cell lines.

  6. Wash cells twice and resuspend cells with HHBS or the buffer of your choice.

  7. Fix cells as desired (optional).

  8. Analyze cells with flow cytometer and/or fluorescence microscope using the appropriate Excitation/Emission filter (see Table 1).

Spectrum

Citations

View all 5 citations: Citation Explorer
Autophagy proteins are not universally required for phagosome maturation
Authors: Cemma, Marija and Grinstein, Sergio and Brumell, John H
Journal: Autophagy (2016): 1440--1446
Differential detection of tumor cells using a combination of cell rolling, multivalent binding, and multiple antibodies
Authors: Myung, Ja Hye and Gajjar, Khyati A and Chen, Jihua and Molokie, Robert E and Hong, Seungpyo
Journal: Analytical chemistry (2014): 6088--6094
Versatile fabrication of nanoscale sol--gel bioactive glass particles for efficient bone tissue regeneration
Authors: Lei, Bo and Chen, Xiaofeng and Han, Xue and Zhou, Jiaan
Journal: Journal of Materials Chemistry (2012): 16906--16913

References

View all 26 references: Citation Explorer
Requirements, features, and performance of high content screening platforms
Authors: Gough AH, Johnston PA.
Journal: Methods Mol Biol (2007): 41
A pharmaceutical company user's perspective on the potential of high content screening in drug discovery
Authors: Hoffman AF, Garippa RJ.
Journal: Methods Mol Biol (2007): 19
Optimizing the integration of immunoreagents and fluorescent probes for multiplexed high content screening assays
Authors: Giuliano KA., undefined
Journal: Methods Mol Biol (2007): 189
Past, present, and future of high content screening and the field of cellomics
Authors: Taylor DL., undefined
Journal: Methods Mol Biol (2007): 3
G protein-coupled receptor internalization assays in the high-content screening format
Authors: Haasen D, Schnapp A, Valler MJ, Heilker R.
Journal: Methods Enzymol (2006): 121
Page updated on December 11, 2024

Ordering information

Price
Unit size
Catalog Number22600
Quantity
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Additional ordering information

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Fax1-800-609-2943
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Request quotation

Spectral properties

Excitation (nm)

346

Emission (nm)

434

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
UNSPSC12352200

Platform

Flow cytometer

Excitation355 nm or 405 nm laser
Emission450, 40 nm filter
Instrument specification(s)Pacific Blue channel

Fluorescence microscope

Excitation353 nm
Emission442 nm
Recommended plateBlack wall, clear bottom

Components

Detection of Jurkat cell viability by Live or Dead™ Fixable Dead Cell Staining Kits (Cat#22600). Jurkat cells were treated and stained with Stain It™ Blue . The cells were fixed in 3.7% formaldehyde and analyzed by flow cytometry as described above. Live (Green) and Dead (heat-treated, Red) cells were distinguished with Pacific Blue channel. The live cell population is easily distinguished from the dead cell population, and nearly identical results were obtained using unfixed cells.
Detection of Jurkat cell viability by Live or Dead™ Fixable Dead Cell Staining Kits (Cat#22600). Jurkat cells were treated and stained with Stain It™ Blue . The cells were fixed in 3.7% formaldehyde and analyzed by flow cytometry as described above. Live (Green) and Dead (heat-treated, Red) cells were distinguished with Pacific Blue channel. The live cell population is easily distinguished from the dead cell population, and nearly identical results were obtained using unfixed cells.
Detection of Jurkat cell viability by Live or Dead™ Fixable Dead Cell Staining Kits (Cat#22600). Jurkat cells were treated and stained with Stain It™ Blue . The cells were fixed in 3.7% formaldehyde and analyzed by flow cytometry as described above. Live (Green) and Dead (heat-treated, Red) cells were distinguished with Pacific Blue channel. The live cell population is easily distinguished from the dead cell population, and nearly identical results were obtained using unfixed cells.
Image of CHO cells fixed with formaldehyde and stained with Live or Dead™ Fixable Dead Cell Staining kit *Blue Fluorescence* in a Costa black wall/clear bottom 96-well plate.