Effect of ITF1779 or ITF1493 on IL-1-induced IL-6 production by LM cells2-a
| Treatment | IL-6 Titers (pg/ml) in LM Cell Supernatants after 24 h or 48 h of Incubation with IL-1α | |
|---|---|---|
| 24 h | 48 h | |
| Experiment 1 | ||
| Medium alone | <8 | <8 |
| + IL-1α | 125 | 887 |
| + IL-1α + ITF1779 (100 μM) | 45 | 391 |
| + IL-1α + ITF1493 (100 μM) | 133 | 873 |
| + ITF1779 (100 μM) | <8 | ND2-b |
| + ITF1493 (100 μM) | <8 | ND |
| Experiment 2 | ||
| Medium alone | <8 | ND |
| + IL-1α | 103 | ND |
| + IL-1α + ITF1779 (100 μM) | 48 | ND |
| + IL-1α + ITF1779 (50 μM) | 62 | ND |
| + IL-1α + ITF1779 (25 μM) | 72 | ND |
| + IL-1α + ITF1779 (12.5 μM) | 83 | ND |
| + IL-1α + ITF1493 (100 μM) | 97 | ND |
| + IL-1α + ITF1493 (50 μM) | 122 | ND |
↵2-a LM cells were incubated for 24 h or 48 h with mouse IL-1α (10 ng/ml) in the absence or presence of ITF1779 or ITF1493. At the end of the incubation times, supernatants were harvested and tested for IL-6 by means of a sandwich ELISA as described in “Materials and Methods.” Preliminary experiments had shown that neither ITF1779 nor ITF1493 interfered with the readout of the standard IL-6 preparation included in the ELISA (data not shown).
↵2-b ND = not done.