The tight-junction composition is a highly dynamic process and different tight-junction components can be divided into the transmembrane proteins (occludin, the claudin protein family, junctional adhesion molecules, coxsackie adenovirus receptor and tight-junction associated marvel proteins) and cytoplasmatic proteins (ZO-1 and cingulin).
Thus, TEM association endows the laminin-binding integrins with both pro-invasive functions (rapid migration) and anti-invasive functions (stable cell junctions), and the composition of TEMs in different cell types might help determine the balance between these opposing activities.
However, the functional relevance of the various SSTRs and the underlying signalling mechanisms in human keratinocytes are largely unknown except for the involvement of SSTR3 in tight junction composition and function [18].
Free energy minimization allowed the construction of a phase diagram with axes the junction functionality and the composition.
Sanger Sequencing of the PCR products enabled us to determine the read-throughs' junction sequence and exon composition around this region (Table 1).
In addition to the subunit composition, gap junction conductivity is regulated by a number of different factors, for example, by the intracellular levels of Ca2+, by polyamines, by the membrane potential, or by phosphorylation (Thévenin et al., 2013).
During terminal differentiation, cells downregulate integrin expression, assemble increased numbers of adherens junctions and desmosomes, and change the protein composition of the junctions.
Therefore we hypothesized that alveolar epithelial cells isolated from septic animals develop tight junctions with different protein composition and reduced barrier function relative to alveolar epithelial cells from healthy animals.
Furthermore, the mixed micelles affected tight junctions in a composition-dependent manner.
Nunes, F. D. et al. Distinct subdomain organization and molecular composition of a tight junction with adherens junction features.
