Cell junction - Wikipedia
The cartoon of epithelium cells connected by tricellular junctions at the regions where three cells meet. Tricellular junctions are also implicated in the regulation of cytoskeletal organization and cell divisions.
4.2 Epithelial Tissue – Anatomy & Physiology - Open Educational …
Figure 4.2.2 – Cells of Epithelial Tissue: Simple epithelial tissue is organized as a single layer of cells and stratified epithelial tissue is formed by several layers of cells. Epithelial tissue is classified based on the shape of the cells present and the number of cell layers present.
Cell Junctions - Molecular Biology of the Cell - NCBI Bookshelf
A conventional electron micrograph of a septate junction between two epithelial cells in a mollusk. The interacting plasma membranes, seen in cross section, are connected by parallel rows of junctional proteins.
Junctional epithelium - Wikipedia
The junctional epithelium, a nonkeratinized stratified squamous epithelium, [1] lies immediately apical to the sulcular epithelium, which lines the gingival sulcus from the base to the free gingival margin, where it interfaces with the epithelium of the oral cavity.
Junctional complexes in epithelial cells: sentinels for extracellular ...
2021年8月28日 · In this review, we discuss the emerging roles of junctional complexes in regulating innate immune defense, stress resistance, and intracellular proteostasis of the epithelial cells, with emphasis on the upstream regulation of epithelial junctions on various aspects of the epithelial barrier.
The Organization of Tight Junctions in Epithelia: Implications for ...
Although the structural and molecular basis of the intramembranous diffusion fence still remains elusive, recent studies with Drosophila mutants, which have defects in epithelial polarity, support the idea that TJ components play major roles in the establishment of epithelial polarity (13,14).
Tight junctions: from simple barriers to multifunctional molecular ...
2016年6月29日 · These components are thought to mediate functional integrity of the junction in epithelial and endothelial cells.
Epithelia: The Histology Guide - University of Leeds
Epithelial cells are held together by strong anchoring (zonula adherens) junctions. The adherens junction lies below the tight junction (occluding junction). In the gap (about 15-20nm) between the two cells, there is a protein called cadherin - a cell membrane glycoprotein.
Cell-cell junctions: structure and regulation in physiology and ...
Epithelial and endothelial cell-cell contacts are established and maintained by several intercellular junctional complexes. These structurally and biochemically differentiated regions on the plasma membrane primarily include tight junctions (TJs), and anchoring junctions.
Cell-cell junctions: structure and regulation in physiology and ...
2021年1月2日 · The current review article presents our current state of knowledge on various cell-cell junctions, their molecular composition, and mechanisms regulating their expression and function in endothelial and epithelial cells.