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发表于 2024-1-25 21:01:01
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按照说明书,似乎不是这样的步骤:
Perform cell surface staining as described in BioLegend's Cell Surface Immunofluorescence Staining Protocol.
Add 1mL of the True-Nuclear™ 1X Fix Concentrate to each tube, vortex and incubate at room temperature in the dark for 45-60 minutes.
If necessary, the protocol can be suspended at this point. After discarding supernatant, re-suspend cells in CytoLast™ Buffer (Cat. No. 422501) or equivalent. Samples can be stored at 4°C for 12-18 hours, protected from light and plastic-wrapped to protect buffer evaporation.
Without washing, add 2mL of the True-Nuclear™ 1X Perm Buffer to each tube.
Centrifuge tubes at 300-400xg at room temperature for 5 minutes, and discard the supernatant.
Add 2mL of the True-Nuclear™ 1X Perm Buffer to each tube.
Centrifuge tubes at 300-400xg at room temperature for 5 minutes, and discard the supernatant.
Resuspend the cell pellet in 100µL of the True-Nuclear™ 1X Perm Buffer.
Add the appropriate amount of fluorochrome conjugated antibody diluted in True-Nuclear™ 1X Perm Buffer for detection of intracellular antigen(s) to each well and incubate in the dark at room temperature for at least 30 minutes.
Add 2mL of the True-Nuclear™ 1X Perm Buffer to each tube.
Centrifuge tubes at 300-400 x g at room temperature for 5 minutes, and discard the supernatant.
Add 2mL of cell staining buffer (Cat. No. 420201).
Centrifuge tubes at 300-400xg at room temperature for 5 minutes, and discard the supernatant.
Resuspend in 0.5mL cell staining buffer then acquire the tubes on a flow cytometer. |
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