stromal cells may be regarded as an aberrant monopotential cell type which shares with the endothelial cell and pericyte a common mesenchymal , presumably angiogenic , ancestry , and may , on occasion , display morphological features , such as increased basement membrane formation and the formation of zonula occludens junctions , which recall its angiogenic lineage .
C0007634
cell type
C0242358
zonula occludens