Flow cytometry Anti-bodies Mouse - CD326/EpCAM

Flow cytometry is an immunophenotyping technique whereby sing cell suspensions are stained for either cell surface markers or intracellular proteins by fluorescently-labelled antibodies and analyzed with a flow cytometer, where fluorescently-labelled molecules are excited by the laser to emit light at varying wavelengths, which is then detected by the instrument. There are several key criteria which are required to be kept in mind while designing a flow experiment- 1. Antibody titration (optimal dilution of antibodies should be calculated in order to avoid over- or under- saturated signals for proper detection of surface and intracellular markers), 2. Precision (3 or more replicates of the sample should be used per experiment), 3. Specificity (proper isotype controls should be included in the experiment), 4. Day-to-day variability (experiments should be repeated 3 or more times to ensure consistency and avoid variability due to flow cytometer settings), 5. Antibody interaction (Fluorescence minus one or FMO should be used, which is the comparison of signals from panel minus one antibody vs. the full panel), and 6. Antibody stability (fluorescently-labelled antibodies should be stored at 4C).

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Found 3 matching solutions for this experiment

Upstream tips
For cell-surface antigen staining, the samples were incubated with antibodies for 20 min at 4 °C, washed and resuspended in PBS containing 3% FBS. To exclude dead cells, 7-amino actinomycin D (7-AAD, BD Biosciences) was added to the samples before sorting.
Downstream tips
We sorted live, single cells using a FACSAria III Cell Sorter with FACSDiva ver. 8.0.1 (BD Biosciences).
Protocol tips
Five million cells per animal were blocked with 1 µg Fc-block/tube and stained or corresponding isotype antibodies for 20 min at 4°C.
Downstream tips
For FACS analysis a FACSCanto II (BD Biosciences) was used. Results were visualized by the FlowJo package (Tree Star Inc., Ashland, OR, USA).
Protocol tips
The cells were prepared for use with FITC anti-mouse CD326 (epithelial cell adhesion molecule: EpCAM) antibodies (Biolegend, San Diego, CA, USA) and FITC Rat IgG2a.k Isotype Ctrl antibodies (Biolegend). The viability rate of the EpCAM-positive cells was measured based on the negative expression of 7-aminoactinomycin D (7-AAD) Staining Solution (BD Biosciences, Bedford, MA, USA). All samples were pre-incubated for 15 min (the light was shaded during this time). The cells were analyzed and sorted using a FACS Aria II cell sorter (BD Biosciences).
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