The annexin A2 system and vascular homeostasis

The endothelial cell annexin A2 system and vascular fibrinolysis.

Vascular endothelial cell surface expression of annexin A2 and its binding partner p11 is a key element in maintaining fibrinolytic balance on blood vessel surfaces. In the recent decade, investigators have made significant progress toward understanding the mechanisms that regulate heterotetrameric (A2*p11)(2) receptor translocation from the cytoplasm to the outer cell surface. Accumulating evi...

S100A10, annexin A2, and annexin a2 heterotetramer as candidate plasminogen receptors.

The defining characteristic of a tumor cell is its ability to escape the constraints imposed by neighboring cells, invade the surrounding tissue and metastasize to distant sites. This invasive property of tumor cells is dependent on activation of proteinases at the cell surface. The serine proteinase plasmin is one of the key proteinases that participate in the pericellular proteolysis associat...

Annexin A2 Heterotetramer: Structure and Function

Annexin A2 is a pleiotropic calcium- and anionic phospholipid-binding protein that exists as a monomer and as a heterotetrameric complex with the plasminogen receptor protein, S100A10. Annexin A2 has been proposed to play a key role in many processes including exocytosis, endocytosis, membrane organization, ion channel conductance, and also to link F-actin cytoskeleton to the plasma membrane. D...

The role of the annexin A2 heterotetramer (AIIt) in vascular fibrinolysis Running title: S100A10 regulates vascular fibrinolysis

Annexin A2 supports pulmonary microvascular integrity by linking vascular endothelial cadherin and protein tyrosine phosphatases

Relative or absolute hypoxia activates signaling pathways that alter gene expression and stabilize the pulmonary microvasculature. Alveolar hypoxia occurs in disorders ranging from altitude sickness to airway obstruction, apnea, and atelectasis. Here, we report that the phospholipid-binding protein, annexin A2 (ANXA2) functions to maintain vascular integrity in the face of alveolar hypoxia. We ...