Kasumi-6

Both the original leukemic cells and the Kasumi-6 cell line harbor a hemizygous point mutation in the gene encoding the CCAAT/enhancer binding protein alpha (C/EBPalpha), a critical myeloid transcriptional factor. 

The cells express C/EBPalpha protein but lack C/EBPalpha binding activity.

12-O-tetradecanoylphorbol-13-acetate (TPA) induces Kasumi- 6 cells to differentiate into adherent, monocytoid appearing cells. 

Differentiation Inducers: TPA

1. Check all containers for leakage or breakage.
2. Remove the frozen cells from the dry ice packaging and immediately place the cells at a temperature below ­-130°C, preferably in liquid nitrogen vapor, until ready for use.

1. Thaw the vial by gentle agitation in a 37°C water bath. To reduce the possibility of contamination, keep the O-ring and cap out of the water.  Thawing should be rapid (approximately 2 minutes).
2. Remove the vial from the water bath as soon as the contents are thawed, and decontaminate by dipping in or spraying with 70% ethanol. All of the operations from this point on should be carried out under strict aseptic conditions.
3. It is recommended that the cryoprotective agent be removed immediately. Centrifuge the cell suspension at approximately 125 x g for 5 to 10 minutes. Discard the supernatant and resuspend the cell pellet in an appropriate amount of fresh growth medium.
4. Transfer the vial contents toan appropriate sized vessel. It is suggested that, prior to the addition of the vial contents, the culture vessel containing the complete growth medium be placed into the incubator for at least 15 minutes to allow the medium to reach its normal pH (7.0 to 7.6).
5. Incubate the culture at 37°C in a suitable incubator.  A 5% CO₂ in air atmosphere is recommended if using the medium described on this product sheet.

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