Effects of IL-6 and Dexamethasone on Cell-Cycle Distribution
Time . | Stimulation . | 8226 . | UCLA #1 . | ||
---|---|---|---|---|---|
G0/G1 . | S/G2 + M . | G0/G1 . | S/G2 + M . | ||
48 h | Control | 54 | 46 | 65 | 35 |
IL-6 | 62 | 38 | 60 | 40 | |
Dex | 76-150 | 24-150 | 85-150 | 15-150 | |
Dex + IL-6 | 71-150 | 29-150 | 81-150 | 19-150 | |
72 h | Control | 53 | 47 | 69 | 31 |
IL-6 | 47 | 53 | 64 | 36 | |
Dex | 79-150 | 21-150 | 89-150 | 11-150 | |
Dex + IL-6 | 76-150 | 24-150 | 82-150 | 18-150 |
Time . | Stimulation . | 8226 . | UCLA #1 . | ||
---|---|---|---|---|---|
G0/G1 . | S/G2 + M . | G0/G1 . | S/G2 + M . | ||
48 h | Control | 54 | 46 | 65 | 35 |
IL-6 | 62 | 38 | 60 | 40 | |
Dex | 76-150 | 24-150 | 85-150 | 15-150 | |
Dex + IL-6 | 71-150 | 29-150 | 81-150 | 19-150 | |
72 h | Control | 53 | 47 | 69 | 31 |
IL-6 | 47 | 53 | 64 | 36 | |
Dex | 79-150 | 21-150 | 89-150 | 11-150 | |
Dex + IL-6 | 76-150 | 24-150 | 82-150 | 18-150 |
Cell-cycle analysis performed by hypotonic PI staining of 8226 or UCLA #1 MM cells 48 or 72 hours after culture in media (control), IL-6 (1,000 U/mL), dexamethasone (Dex; 10−6 mol/L) or Dex + IL-6. Results are percentage of cells in G0/G1versus S/G2 + M, mean of three separate experiments. The standard deviations were all <15% of the mean values.
Significantly different from corresponding control (media), P< .05.