P-selectins: P-selectin is expressed on activated endothelial cells and platelets.

As shown in Figure 2 (above, left), notch acts as a receptor for ligands that are expressed on adjacent cells.

CD33 or Siglec-3 is a transmembrane receptor expressed on cells of myeloid lineage.

They are highly expressed in platelets, but also on endothelial cells, myocytes and neurons.

CD19 is expressed on follicular dendritic cells and B cells.

E-cadherin, which is expressed on epithelial cells, transmits antigrowth signals.

The Tie receptor family is known to be expressed on endothelial cells [ 5 ] .

Integrin α2β1 is expressed mainly on epithelial cells and platelets.

Endo180 receptor is expressed on fibroblasts, endotelial cells and macrophages.

RANK is also expressed on dendritic cells and facilitates immune signaling.