PMN can purloin a monocyte's zymosan without killing it.

<p><b>A. Monocyte (M) containing 6 zymosan.</b> A. deformed (trapped) erythrocyte is at 12 o'clock. Four PMN are approaching. B. +6 min, 55 sec: PMN are surrounding the monocyte. C. +27 min, 43 sec: A PMN, traversing the monocyte from left to right, takes up a zymosan. D. +6 min, 56 sec: The same PMN is now pressing into the body of the monocyte from the right. The monocyte is so far intact and motile. E. +4 min,19 sec: The PMN appears to have transected the monocyte. The nucleated portion (above, Mn) remains motile. F. +15 min,58 sec: Ma indicates the anucleate portion of the monocyte. The arc shows a clear area of its residual cytoplasm; at right its zymosan is being scavenged by PMN. Mn remains motile for 24 more minutes. (Monocytes and zymosan in 100% plasma, 1 hr, washed, and autologous PMN added. Substrate: plastic.)