Results 41 to 50 of about 196,709 (295)

Campylobacter jejuni enters gut epithelial cells and impairs intestinal barrier function through cleavage of occludin by serine protease HtrA

Gut Pathogens, 2019
Campylobacter jejuni secretes HtrA (high temperature requirement protein A), a serine protease that is involved in virulence. Here, we investigated the interaction of HtrA with the host protein occludin, a tight junction strand component ...
Aileen Harrer, Roland Bücker, Manja Boehm, Urszula Zarzecka, Nicole Tegtmeyer, Heinrich Sticht, Jörg D. Schulzke, Steffen Backert   +7 more
doaj   +1 more source

YAP1 recruits c-Abl to protect angiomotin-like 1 from Nedd4-mediated degradation. [PDF]

PLoS ONE, 2012
Tissue development and organ growth require constant remodeling of cell-cell contacts formed between epithelial cells. The Hippo signaling cascade curtails organ growth by excluding the transcriptional co-activator Yes Associated Protein 1 (YAP1) from ...
Kassiani Skouloudaki, Gerd Walz
doaj   +1 more source

Modulation of Intestinal Epithelial Permeability via Protease-Activated Receptor-2-Induced Autophagy

Cells, 2022
Protease-activated receptor 2 (PAR2) alleviates intestinal inflammation by upregulating autophagy. PAR2 also modulates tight junctions through β-arrestin signaling.
Yuju Kim, Yunna Lee, Gwangbeom Heo, Sihyun Jeong, Soyeong Park, Jin-Wook Yoo, Yunjin Jung, Eunok Im   +7 more
doaj   +1 more source

The microscopic basis for phase-sensitive experiments for determination of the order parameter symmetry in Fe-based superconductors

, 2013
We present a microscopic theory of dc Josephson current, based on the construction of a coherent temperature Green function in the tight-binding approximation, in junctions with multiband superconductors.
Burmistrova, A. V., Devyatov, I. A.
core   +1 more source

The role of endothelial junctions in the regulation of the extravasation of tumor cells. A historical reappraisal

Frontiers in Oncology
Endothelial cells lining the vessel wall are connected by adherent, tight and gap junctions. Adherent junctions are common to all endothelial cells, whereas tight and gap junctions graduate within different vascular segments.
Domenico Ribatti
doaj   +1 more source

Effect of cAMP derivates on assembly and maintenance of tight junctions in human umbilical vein endothelial cells

BMC Cell Biology, 2010
Background Endothelial tight and adherens junctions control a variety of physiological processes like adhesion, paracellular transport of solutes or trafficking of activated leukocytes. Formation and maintenance of endothelial junctions largely depend on
Beese Michaela, Wyss Kristin, Haubitz Marion, Kirsch Torsten   +3 more
doaj   +1 more source

Negative differential resistance in nanotube devices

, 2000
Carbon nanotube junctions are predicted to exhibit negative differential resistance, with very high peak-to-valley current ratios even at room temperature.
A. A. Farajian, A. A. Odintsov, A. S. Maksimenko, C. Dekker, D. K. Roy, F. Léonard, F. Léonard, François Léonard, J. Chen, J. Li, J. Tersoff, J. W. G. Wildöer, J.-Y. Yi, K. Esfarjani, M. F. Lin, S. Datta, S. M. Sze, T. W. Odom, Y. Miyamoto   +18 more
core   +1 more source

Strongly anharmonic current-phase relation in ballistic graphene Josephson junctions [PDF]

, 2010
Motivated by a recent experiment directly measuring the current-phase relation (CPR) in graphene under the influence of a superconducting proximity effect, we here study the temperature dependence of the CPR in ballistic graphene SNS Josephson junctions ...
Annica M. Black-Schaffer, Jacob Linder, M. Tinkham, M. Yu. Kupriyanov, M. Yu. Kupriyanov   +4 more
core   +2 more sources

Atypical septate junctions maintain the somatic enclosure around maturing spermatids and prevent premature sperm release in Drosophila testis

Biology Open, 2019
Tight junctions prevent paracellular flow and maintain cell polarity in an epithelium. These junctions are also required for maintaining the blood-testis barrier, which is essential for sperm differentiation.
Pankaj Dubey, Tushna Kapoor, Samir Gupta, Seema Shirolikar, Krishanu Ray   +4 more
doaj   +1 more source

Functions of p120ctn isoforms in cell-cell adhesion and intracellular signaling [PDF]

, 2012
The functions of many organs depend on the generation of an epithelium. The transition from a set of loosely connected nonpolarized cells to organized sheets of closely associated polarized epithelial cells requires the assembly of specialized cell ...
Pieters, Tim, van Hengel, Jolanda, Van Roy, Frans   +2 more
core   +2 more sources