Figure 5.
Immunofluorescent staining of cytokeratin 18. Expression of the epithelial marker cytokeratin 18 could be demonstrated after incubation with conditioned medium for 12 days (b, c), whereas controls in standard medium were negative (a).
Immunofluorescent staining of cytokeratin 18. Expression of the epithelial marker cytokeratin 18 could be demonstrated after incubation with conditioned medium for 12 days (b, c), whereas controls in standard medium were negative (a).