Table I. Adhesion and migration of PS explants in vitro.
| Substrate | Genotype | Total number of samples | Number of samples adhereda | Number of samples migratedb |
|---|---|---|---|---|
| No substrate | α4-positive | 18 | 2 (11%) | 2 (11%) |
| VCAM-1 | α4-positive | 14 | 14 (100%) | 14 (100%) |
| α4-null | 8 | 1 (12.5%) | 1 (12.5%) | |
| Fibronectin | α4-positive | 12 | 12 (100%) | 12 (100%) |
| α4-null | 7 | 7 (100%) | 0 (0%) |
Samples that showed nuclear staining on the top side of the membrane.
Samples that showed nuclear staining on the bottom side of the membrane.