[Appearance of proliferative activity in peritoneal macrophages cultured in vitro. Mitotic index values and percent frequency of frequency of mitosis phase]. / Sulla comparsa di attività riproduttiva nei macrofagi peritoneali coltivati in vitro. Indici mitotici e frequenza delle fasi mitotiche.

In vitro culture of rat peritoneal macrophages, cells generally considered devoid of proliferative activity, was found to lead to the appearance of mitosis. Mitotic index and percent phase incidence values were determined for these cells.