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Found 3 matching solutions for this experiment
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To perform flow cytometry analysis and to sort BFU-E and CFU-E cells from primary human samples including BM, cord blood, and peripheral blood, we isolated CD45+ cells from mononuclear cells (MNC) derived by Ficoll density gradient separation, followed by positive selection using CD45 magnetic beads. |
Ab or appropriate isotype controls (all from BD Biosciences) were incubated for 30 minutes in the dark. Cells were washed twice with 40 mL phosphate-buffered saline/0.5% bovine serum albumin, resuspended in 5 mL phosphate-buffered saline/0.5% bovine serum albumin, and stained with the viability marker 7-AAD on ice for 10 minutes in the dark. |
The analysis was performed using BD FACSDiva. Sorting was performed using a MoFlo high-speed cell sorter (Beckman Coulter). The number of BFU-E or CFU-E cells in one million MNCs was quantitated. |
Upstream tips |
To perform flow cytometry analysis and to sort BFU-E and CFU-E cells from primary human samples including BM, cord blood, and peripheral blood, we isolated CD45+ cells from mononuclear cells (MNC) derived by Ficoll density gradient separation, followed by positive selection using CD45 magnetic beads. |
Protocol tips |
Ab or appropriate isotype controls (all from BD Biosciences) were incubated for 30 minutes in the dark. Cells were washed twice with 40 mL phosphate-buffered saline/0.5% bovine serum albumin, resuspended in 5 mL phosphate-buffered saline/0.5% bovine serum albumin, and stained with the viability marker 7-AAD on ice for 10 minutes in the dark. |
Downstream tips |
The analysis was performed using BD FACSDiva. Sorting was performed using a MoFlo high-speed cell sorter (Beckman Coulter). The number of BFU-E or CFU-E cells in one million MNCs was quantitated. |
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and 100 µL of the test sample (fresh bone marrow) was added in all tubes. The cells were incubated for 20 min at room temperature (18–25°C) in dark. The RBCs were lysed using 2 ml of 1× BD FACS lysing solution (BD Biosciences, San Jose, CA, USA). The above tubes were centrifuged for 5 min at 1800 g at room temperature. Supernatant was discarded and the pellet was re-suspended. |
The pellet was washed twice with 2 ml of sheath fluid (FACSFlow, Becton Biosciences, San Jose, CA, USA) at 1800 g for 5 min. The pellet was obtained after washing and was resuspended in 300 µl of sheath fluid in the tube and a total of 20,000 events were acquired. |
Protocol tips |
and 100 µL of the test sample (fresh bone marrow) was added in all tubes. The cells were incubated for 20 min at room temperature (18–25°C) in dark. The RBCs were lysed using 2 ml of 1× BD FACS lysing solution (BD Biosciences, San Jose, CA, USA). The above tubes were centrifuged for 5 min at 1800 g at room temperature. Supernatant was discarded and the pellet was re-suspended. |
Downstream tips |
The pellet was washed twice with 2 ml of sheath fluid (FACSFlow, Becton Biosciences, San Jose, CA, USA) at 1800 g for 5 min. The pellet was obtained after washing and was resuspended in 300 µl of sheath fluid in the tube and a total of 20,000 events were acquired. |
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Incubation 60 minutes at 4°C in staining buffer (2% BSA in PBS). Corresponding isotypes were used as control. Cells were washed in PBS, centrifuged, and finally resuspended in 300-μL analysis buffer (1% BSA/2 mmol/L EDTA in PBS). |
The dead cells and debris were excluded after 7-AAD staining (Invitrogen). Data were collected on FACSAriaIII cell sorter (BD Biosciences) and analyzed using FlowJo software (TreeStar). |
Protocol tips |
Incubation 60 minutes at 4°C in staining buffer (2% BSA in PBS). Corresponding isotypes were used as control. Cells were washed in PBS, centrifuged, and finally resuspended in 300-μL analysis buffer (1% BSA/2 mmol/L EDTA in PBS). |
Downstream tips |
The dead cells and debris were excluded after 7-AAD staining (Invitrogen). Data were collected on FACSAriaIII cell sorter (BD Biosciences) and analyzed using FlowJo software (TreeStar). |
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