
278 BD FACSAria II User’s Guide
Side Population Application Guidelines
The Near UV laser on the BD FACSAria II cytometer is very effective for use in
applications involving side population (SP) studies. See Figure B-5 on page 279
for a typical plot from a side population experiment.
Instrument Setup
1 Turn on Near UV laser and allow it to warm up for 30 minutes.
2 Make sure the cytometer configuration is set to a configuration with Near
UV parameters.
3 Ensure that the side population filter set is in the Near UV (far-left) trigon.
Place the 670 LP filter (Hoechst Red) in detector A with 610 LP mirror in
front. Place the 450/20 filter (Hoechst Blue) in detector B. See Figure B-3
on page 274.
4 Make sure the cytometer has a valid performance check or perform QC.
Experiment Setup Tips
1 Set the parameters to linear in the experiment.
2 Create a Hoechst Red vs Hoechst Blue dot plot.
3 Add a FSC vs PI dot plot if you want to discriminate dead cells from viable
ones.
4 Set the sample temperature to 4
°C by selecting Cytometer > Sample
Temperature.
5 Set the sample flow rate to as low as possible to achieve the best CVs.
Sample concentration should be between 1 and 2 million cells per mL of
buffer.
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