Growth stimulation of polyoma virus treated hamster cells in soft agar by conditioned medium

Nature of cells forming erythroid coloni

Nature of cells forming erythroid colonies in agar after stimulation by spleen conditioned medium

✍ G. R. Johnson; D. Metcalf 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 968 KB

## Abstract Erythroid colony formation in agar cultures of CBA cells was stimulated by the addition of pokeweed mitogen‐stimulated C57BL spleen conditioned medium. Both 48‐hour colonies (“48‐hour benzidine‐positive aggregates”) and day 7 large burst or unicentric erythroid colonies (“erythroid colo