VEGF is mainly expressed on the surface of placental syncytiotrophoblast cells and invasive chorionic trophoblast cells during pregnancy; VEGF is particularly expressed at the vascular bud site at early pregnancy during which syncytiotrophoblast cells are abundant.
VEGF is mainly expressed in placental syncytiotrophoblast and invasive chorionic trophoblast cells during pregnancy especially at the vascular bud site at early pregnancy during which syncytiotrophoblast cells were strongly positive.
During the first 48 hours after graft placement, vascular buds
in the recipient bed merge with the disrupted vascular ends of the graft and establish blood flow.
Vascular buds are presumed to arise from cells in the vasculature.
Likewise, when vascular budding was induced, vascular buds developed the same pattern of asymmetry as the parent zooids of the colony from which they were generated.