Results 351 to 360 of about 665,109 (406)
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Intercellular junctions of rat endocardium
The Anatomical Record, 1975AbstractThe ultrastructure of the intercellular junctions of rat endocardium has been characterized following lanthanum exposure in vitro and uranyl acetate staining en bloc. The interendothelial clefts of the endocardium run either a relatively straight or convoluted course and possess one or two loci where the plasma membranes are in close apposition
Piero Anversa +2 more
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Cell junctions and intercellular communication
In Vitro, 1980We have compared intercellular communication in normal and regenerating rat liver. Gap junctions are greatly reduced in size and numbers 29 to 35 hr after hepatectomy, but we still find some 90% of hepatocytes coupled by electrophysiological criteria.
Jean-Paul Revel +3 more
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Studies on the intercellular junctions of mesothelium and endothelium
Protoplasma, 1967The passage of substances across the endothelial barrier may occur—theoretically at least [1]—by two main pathways: a) Through the cells. Particles of colloidal gold [2] or molecules of ferritin [3] injected into the plasma are taken up by the pinocytic vesicles of the endothelial cells, and thereafter appear in the extravascular spaces. This and other
G. Majno, R. S. Cotran
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Mesothelial intercellular junctions and pathways
Cell and Tissue Research, 1976Freeze-etch preparations of mesothelial cells taken from the peritoneum of mouse reveal the presence of vesicles invaginating the apical and the basal cell surfaces. These vesicles are scarcely seen within the cytoplasm. Long tortuous tubular profiles extend for considerable distance within the cytoplasm and are frequently associated with the vesicles.
A. F. Baradi, D. G. Rayns
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Intercellular Junctions in the Differentiating Rat Otocyst
Annals of Otology, Rhinology & Laryngology, 1979Intercellular junctions between cells of the rat otocyst on the 12th day of gestation were studied using lanthanum tracer and freeze-fracture techniques. At the luminal surface, the intercellular space is closed by a series of tight junctions. Gap junctions are also present between cells both within and below the luminal junctional complex.
Khalid M. Khan, William F. Marovitz
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Intercellular Junctions in the Organ of Corti
Annals of Otology, Rhinology & Laryngology, 1978The intercellular junctions between adjacent supporting cells and between apposed hair and supporting cells in the organ of Corti of cat and human were studied. At the endolymphatic surface, the intercellular space was closed by a series of tight junctions (zonula occludens), whereas there were no tight junctions at the basilar membrane surface of the
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Assessment of Gap Junctional Intercellular Communication
Current Protocols in Toxicology, 2009AbstractGap junctions are important plasma membrane organelles through which most cells in normal tissues communicate with each other. They exist in two neighboring cells and each cell contributes half of the structure. One gap junction consists of two hexameric connexons that dock with each other to create a channel. Six of the basic subunits referred
James E. Klaunig, Yuhui Shi
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Structure of gap junction intercellular channels
Current Opinion in Structural Biology, 1996Gap junctions are formed by a multigene family of polytopic membrane channel proteins, connexins, that have four hydrophobic transmembrane domains and their N and C termini located on the cytoplasmic membrane face. The C-terminal tail plays important roles in channel regulation by pH and phosphorylation.
Mark Yeager, Bruce J. Nicholson
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Intercellular junctions in salivary glands
1990Human and mammalian salivary glands are made up of combinations of acinar, ductal, and myoepithelial cells, with each cell type playing a defined role in salivary secretion. Thus, acinar cells are devoted to production and release of proteins and electrolytes, duct cells constitute the walls of the pipes that convey secreted material from acini to the ...
FUMAGALLI, Guido Francesco, M. Shimono
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Single-channel currents of an intercellular junction
Nature, 1985We have used a double whole-cell patch-clamp system to make the first quantitative recordings of the single-channel current from an intercellular junction, presumably a gap junction. The junctional channel has various conductance states and discriminates poorly between cations and anions. It seems to change slowly from one conductance state to another.
Alain Trautmann, Jacques Neyton
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