Flow cytometry Anti-bodies Mouse - CD106/Vcam-1

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

Protocol tips
Add PI so that the final concentration is 0.3 μg/ml, add 0.25 μl VCAM1-Biotin antibody. If the concentration of isotype control antibody differs from a given specific antibody, calculate the volume before applying so that the same amount of isotype control antibody is used. VCAM1-Biotin which is used at about 2.5 μg per 107 cells. Titration of antibodies is usually not required when using reagents suggested by this protocol. However, optimization may be necessary for antibodies from other vendors.
Protocol tips
Propidium iodide (PI) (1 μg/ml, Sigma #P4170) was added to differentiate between live and dead cells. Only live cells (PI−) were counted.
Downstream tips
FACS analysis and cell sorting were performed in a BD FACSAriaII (BD Biosciences, San Diego, CA) using the FACSDiva software (BD Biosciences). Single-cell precision was used for sorting single cells into 96-well plate for clonal analysis, and 4-way purity precision was used for bulk sort.
Upstream tips
Embryonic heart cell suspensions were stained on ice in PBS containing 5% FCS using the following pre-titrated antibodies
Protocol tips
rat anti VCAM-1 (10 µg/ml, BD Biosciences)
Downstream tips
Cell sorting was performed on a FACSAria (BD Biosciences) with 100 µM nozzle. Doublet cells were discriminated as previously described [17].
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