Flow cytometry Anti-bodies Mouse - CD3

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
Isolation of splenocytes was done by mashing the spleen through a 70-μm cell strainer. The cells were washed with phosphate-buffered saline and after spinning at 300g for 6 minutes, the cell pellet was resuspended in 1 mL lysis buffer for 3 minutes.
Protocol tips
Staining for activation marker was done 1 × 106 cells per tube. For blocking of nonspecific Fc-mediated interactions splenocytes were pre-incubated with 1 μg of anti-mouse CD16/CD32 for 5 minutes. . Thereafter, the antibody cocktail (CD4, CD3, CD11b, Ly6G, CD69, CD25 and CD62L) was added and incubated at 4°C for an additional 20 minutes and then analyzed by flow cytometry.
Upstream tips
Single cell suspensions were stained with fluorescently conjugated antibodies in a 1:100 dilution unless otherwise noted. Cells were stained with LIVE/DEAD™ Aqua or Blue (Invitrogen), blocked with 4μg/ml anti-CD16/32 (2.4G2; Bioxcell)
Downstream tips
Samples were analyzed on an LSRII and sorted on an Aria II cell sorter (BD Biosciences).
Protocol tips
CD3 (clone 145-2C11), corresponding isotype controls, and secondary reagents (efluor450-, APC-efluor780–, and PE-Cy7–conjugated streptavidin) were purchased from eBioscience.
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