Table 1.
Comparison of the components in the tumors derived from Parp+/+, Parp+/−, and Parp−/− ES cells
| Tissue type | Parp+/+ | Parp+/− | Parp−/− |
|---|---|---|---|
| Undifferentiated embryonal | |||
| carcinoma cells | + | + | + |
| Hemorrhage | − | − | + |
| STGCs | − | − | + |
| Ectodermal derivatives | |||
| Primitive neuroepithelium | + | + | + |
| Mature neural tissue | + | + | + |
| Keratinized epithelium | + | + | + |
| Hairs and follicles | − | − | − |
| Mesodermal derivatives | |||
| Connective tissue | + | + | + |
| Cartilage | + | + | + |
| Bone | + | + | + |
| Blood vessel | + | + | + |
| Muscle | + | + | + |
| Adipose tissue | + | + | + |
| Endodermal derivatives | |||
| Ciliated epithelium | + | + | + |
| Gut epithelium | + | + | + |
| Mucus-secreting epithelium | + | + | + |