Actin cytoskeleton dynamics during mucosal inflammation: a view from broken epithelial barriers DOI
Susana Lechuga, Andrei I. Ivanov

Current Opinion in Physiology, Journal Year: 2020, Volume and Issue: 19, P. 10 - 16

Published: June 30, 2020

Language: Английский

Tight Junction Structure and Function Revisited DOI
Tetsuhisa Otani, Mikio Furuse

Trends in Cell Biology, Journal Year: 2020, Volume and Issue: 30(10), P. 805 - 817

Published: Sept. 2, 2020

Language: Английский

Citations

491

The CLDN5 gene at the blood-brain barrier in health and disease DOI Creative Commons
Yosuke Hashimoto, Chris Greene, Arnold Münnich

et al.

Fluids and Barriers of the CNS, Journal Year: 2023, Volume and Issue: 20(1)

Published: March 28, 2023

Abstract The CLDN5 gene encodes claudin-5 (CLDN-5) that is expressed in endothelial cells and forms tight junctions which limit the passive diffusions of ions solutes. blood–brain barrier (BBB), composed brain microvascular associated pericytes end-feet astrocytes, a physical biological to maintain microenvironment. expression CLDN-5 tightly regulated BBB by other junctional proteins supports from astrocytes. most recent literature clearly shows compromised with decline increasing risks developing neuropsychiatric disorders, epilepsy, calcification dementia. purpose this review summarize known diseases function. In first part review, we highlight understanding how as well astrocytes cells. We detail some drugs can enhance these are being developed or currently use treat decline. then summarise mutagenesis-based studies have facilitated better physiological role protein at demonstrated functional consequences recently identified pathogenic missense mutation patients alternating hemiplegia childhood. This gain-of-function CLDN family all others representing loss-of-function mutations resulting mis-localization and/or attenuated Finally, reports about dosage-dependent effect on development neurological mice discuss what cellular for regulation human diseases.

Language: Английский

Citations

65

Patterning of the cell cortex by Rho GTPases DOI
William M. Bement, Andrew B. Goryachev, Ann L. Miller

et al.

Nature Reviews Molecular Cell Biology, Journal Year: 2024, Volume and Issue: 25(4), P. 290 - 308

Published: Jan. 3, 2024

Language: Английский

Citations

50

The mechanobiology of tight junctions DOI
Sandra Citi

Biophysical Reviews, Journal Year: 2019, Volume and Issue: 11(5), P. 783 - 793

Published: Oct. 1, 2019

Language: Английский

Citations

136

Abl and Canoe/Afadin mediate mechanotransduction at tricellular junctions DOI
Huapeng H. Yu, Jennifer A. Zallen

Science, Journal Year: 2020, Volume and Issue: 370(6520)

Published: Nov. 27, 2020

Tension where multiple cells meet Cells exist in varying environments and must respond to specific stimuli. During development, epithelial need rapidly reorganize under tension without compromising integrity. Yu et al. demonstrate that Drosophila achieve this by transiently stabilizing adhesion at tricellular junctions three (see the Perspective Raghavan Vasioukhin). The conserved regulator Canoe/Afadin is recruited within seconds dissociates when released through a mechanism requires Abl-dependent tyrosine phosphorylation. These results identify an vivo mechanotransduction pathway dynamically couples with physiological forces, allowing modulate their behavior response mechanical changes environment. Science , issue p. eaba5528 ; see also 1036

Language: Английский

Citations

93

Ruffles and spikes: Control of tight junction morphology and permeability by claudins DOI

K. Sabrina Lynn,

Raven J. Peterson, Michael Koval

et al.

Biochimica et Biophysica Acta (BBA) - Biomembranes, Journal Year: 2020, Volume and Issue: 1862(9), P. 183339 - 183339

Published: May 7, 2020

Language: Английский

Citations

81

Mechanosensitive calcium flashes promote sustained RhoA activation during tight junction remodeling DOI Creative Commons
Saranyaraajan Varadarajan, Shahana Chumki, Rachel E. Stephenson

et al.

The Journal of Cell Biology, Journal Year: 2022, Volume and Issue: 221(4)

Published: March 7, 2022

Epithelial cell–cell junctions remodel in response to mechanical stimuli maintain barrier function. Previously, we found that local leaks tight (TJs) are rapidly repaired by local, transient RhoA activation, termed “Rho flares,” but how Rho flares regulated is unknown. Here, discovered intracellular calcium flashes and junction elongation early events the flare pathway. Both laser-induced naturally occurring TJ breaks lead at site of leaks. Additionally, induced optogenetics increases frequency, suggesting mechanically triggered. Depletion or inhibition mechanosensitive channels (MSCs) reduces amplitude diminishes sustained activation flares. MSC-dependent influx necessary global function regulating reinforcement proteins via contraction. In all, uncovered a novel role for remodeling, allowing epithelial cells repair stimuli.

Language: Английский

Citations

57

Cell Adhesion at the Tight Junctions: New Aspects and New Functions DOI Creative Commons

Nicolina Wibbe,

Klaus Ebnet

Cells, Journal Year: 2023, Volume and Issue: 12(23), P. 2701 - 2701

Published: Nov. 24, 2023

Tight junctions (TJ) are cell–cell adhesive structures that define the permeability of barrier-forming epithelia and endothelia. In contrast to this seemingly static function, TJs display a surprisingly high molecular complexity unexpected dynamic regulation, which allows maintain barrier in presence physiological forces response perturbations. Cell–cell adhesion receptors play key roles during regulation TJs. They connect individual cells within cellular sheets link sites contacts underlying actin cytoskeleton. Recent findings support transmitting mechanical promoting phase separation. review, we discuss newly discovered functions cell localized at their role function.

Language: Английский

Citations

26

Storming the gate: New approaches for targeting the dynamic tight junction for improved drug delivery DOI Creative Commons
Isabela Ramirez-Velez, Brian Belardi

Advanced Drug Delivery Reviews, Journal Year: 2023, Volume and Issue: 199, P. 114905 - 114905

Published: June 3, 2023

Language: Английский

Citations

23

Tight junction membrane proteins regulate the mechanical resistance of the apical junctional complex DOI Creative Commons
Thanh Phuong Nguyen, Tetsuhisa Otani, Motosuke Tsutsumi

et al.

The Journal of Cell Biology, Journal Year: 2024, Volume and Issue: 223(5)

Published: March 22, 2024

Epithelia must be able to resist mechanical force preserve tissue integrity. While intercellular junctions are known important for the resistance of epithelia, roles tight (TJs) remain established. We previously demonstrated that epithelial cells devoid TJ membrane proteins claudins and JAM-A completely lack TJs exhibit focal breakages their apical junctions. Here, we demonstrate fracture when claudin/JAM-A–deficient undergo spontaneous cell stretching. The junction was accompanied by actin disorganization, polymerization required integrity in cells. Further deletion CAR resulted disruption ZO-1 molecule ordering at junctions, severe defects These results regulate junctional complex

Language: Английский

Citations

12