IFN-γ does not modulate M-CSF production by immature DCs.

(A-B) Day 5 immature DCs were maintained in GM-CSF plus IL-4 and 25 ng/mL IFN-γ was not (▪) or was (■) added at day 0, 2, or 4. After 24 hours, M-CSF (A) and IL-6 (B) were quantified in the supernatants. Results are expressed in micrograms per milliliter (means ± SDs, n = 4).