Endothelial cells integrins

Tang DG, Diglio CA, Bazaz R, Honn KV. Transcriptional activation of endothelial cell integrin alpha v by protein kinase C activator 12(S)-HETE. J Cell Sci. 108 ( Pt 7) (1995a)... 

Integrins Mediate Adhesion of Neutrophils to Endothelial Cells... 

Adhesion of neutrophils to endothelial cells employs specific adhesive proteins (integrins) located on their surface and also specific receptor proteins in the endothelial cells. (See also the discussion of selectins in Chapter 47.)... 

Natalizumab (Tysabri ) is a recombinant humanized IgG4 mAb that binds to the a4-integrin subunit of a4(31 (VLA-4) and oA M (LPAM-1) integrins expressed on the surface of all leukocytes except neutrophils, and inhibits the a4-mediated adhesion of leukocytes to their respective receptors.103 104 The receptor for a4pi, vascular cell adhesion molecule-1 (VCAM-1), is expressed on activated endothelial cells and is... 

These molecules interact with the leukocyte integrins and thus are important during the later stages of the inflammatory response, which are independent of selectin function. The major molecules present on endothelial cells are shown in Table 3.3. 

ICAM-1 and -2 are constitutively expressed on endothelial cells ICAM-1 may be further up-regulated by exposure to cytokines. ICAM-3 has recently been described (its identity based on the unique specificity of a monoclonal antibody) and is a 124-kDa glycoprotein present on the surfaces of T cells, monocytes and neutrophils its expression may be up-regulated by stimulants such as mitogens. VCAM-1, which is expressed on the luminal surface of cytokine-exposed endothelial cells, binds T cells via VLA-4. It is also expressed on the surface of some leukaemic cell lines, on rheumatoid synovial cells and on some tumours.On the other hand, ICAM-1 is found on all endothelial surfaces, and its interaction with neutrophil integrins is the major mechanism that results in the stimulation of transendothelial migration. 

Another 3-D cornea model, comprising rabbit primary cultures of epithelial and stromal cells as well as mouse immortalized endothelial cells, was described in 1994 by Zieske and coworkers [70], They showed the influence of endothelial cells on the formation of a tightly packed, multilayered epithelium as well as the expression of laminin, type VII collagen, a6 integrin, keratin K3, and a-enolase. Furthermore, their findings suggested that the formation of an in vivo-like epithelium requires the cultivation of the 3-D corneal construct under AIC conditions. By contrast, LCC methods of cultivating corneal equivalents in the absence of endothelial cells failed to promote the expression of differentiation markers and basement membrane components. 

Jones CB, McIntosh J, Huang H, Graytock A, Hoyt DG (2001) Regulation of bleomycin-induced DNA breakage and chromatin structure in lung endothelial cells by integrins and poly(ADP-ribose) polymerase. Mol Pharmacol 59(l) 69-75... 

Christofidou-Solomidou M, Bridges M, Murphy GF. Expression and function of endothelial cell alpha v integrin receptors in wound-induced human angiogenesis in human skin/SClD mice chimeras. Am J Pathol 1997 151(4) 975-983. 

REDV Fibronectin Integrin a4pi Vascular endothelial cells... 

---