The concentration of Bcl-3 is strongly increased in mature dendritic cells.

Immunoblots with cytoplasmic proteins from monocytes (day 0, lanes 1 and 4), immature dendritic cells (day 7, lane 2), mature dendritic cells (day 10, lane 3), macrophages (day 7, lane 5), and macrophages treated with monocyte-conditioned medium for another 3 days (day 10, lane 6).