integrin

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integrin

[in′teg·rən]
(cell molecular)
A heterodimeric transmembrane receptor protein of animal cells that binds to components of the extracellular matrix on the outside of a cell and to the cytoskeleton on the inside of the cell, functionally connecting the cell interior to its exterior; in blood cells, integrins are also involved in cell-cell adhesion.
References in periodicals archive ?
Although no cases of PML have been observed in ENTYVIO clinical trials, JC virus infection resulting in progressive multifocal leukoencephalopathy (PML) and death has occurred in patients treated with another integrin receptor antagonist.
The goal of this study is to determine the affinity of [alpha]5[beta]1 integrins on NIH/3T3 fibroblasts for fibronectin adsorbed onto functionalized electrospun PCL scaffolds.
Most of the cells in our bodies stick to neighbouring cells through the help of molecules on their surface known as integrins that helps cells stick together.
Whereas selectins are constitutively active, integrins must be activated to mediate adhesion.
Integrins are the transmembrane heterodimeric receptors on the cell surface, consisting of non-covalently associated a and a sub units.
Scientists said that the molecule - called alpha v integrin - is a critical switch involved in turning on the myofibroblast cells to make scar tissue.
Now it looks as if keeping chemokines from docking onto their receptors might prove to be a more specific treatment strategy than working with integrins, because integrins affect the immune system more broadly than do chemokines.
Role of integrins in invasion of endometrial cancer cell lines.
Among the topics are cadherins, adherens junctions and desmosomes, integrins and focal contacts, receptor tyrosine phosphatases, Notch and Slit-Robo signaling, adhesive binding to collagen and fibrillin, and complex adhesive mechanisms involved in leukocyte migration and malaria.
The experiments were repeated concurrently with cells not treated with FGF-2 to demonstrate differences in adhesion based on induction of integrins [alpha]5[beta]1.
Since the alpha1 and 2 receptors are collagen receptors and are not known to bind isolated Fn and the alpha5 is a Fn receptor not known to bind isolated collagen, these data collectively show that col-f/col-p and Fn-f can bind not only their classical receptors but bind proximal to other integrins by interaction with their respective ligands.
Integrins are protein receptors that bind to extracellular matrix proteins, and a2b1 and a5b1 are two integrins that mediate mammary epithelial cell adhesion and migration on collagen and fibronectin, respectively.