Results 61 to 70 of about 55,164 (304)

A Simulated Microgravity Environment Causes a Sustained Defect in Epithelial Barrier Function. [PDF]

, 2019
Intestinal epithelial cell (IEC) junctions constitute a robust barrier to invasion by viruses, bacteria and exposure to ingested agents. Previous studies showed that microgravity compromises the human immune system and increases enteropathogen virulence.
Alvarez, Rocio, Marchelletta, Ronald R, McCole, Declan F, Prisk, G Kim, Sayoc-Becerra, Anica, Stork, Cheryl A   +5 more
core   +1 more source

Tyrosine-Based Signals Regulate the Assembly of Daple⋅PARD3 Complex at Cell-Cell Junctions. [PDF]

, 2020
Polarized distribution of organelles and molecules inside a cell is vital for a range of cellular processes and its loss is frequently encountered in disease.
Choi, Julie, Ear, Jason, Ghassemian, Majid, Ghosh, Pradipta, Kufareva, Irina, Rajapakse, Navin, Saklecha, Anokhi   +6 more
core  

Identification of MarvelD3 as a tight junction-associated transmembrane protein of the occludin family [PDF]

, 2009
Background: Tight junctions are an intercellular adhesion complex of epithelial and endothelial cells, and form a paracellular barrier that restricts the diffusion of solutes on the basis of size and charge.
Balda, M.S., Matter, K., Rodrigues, N.T.L., Steed, E.   +3 more
core   +3 more sources

Oral Dosed Organo‐Silica Nanoparticles Restore Glucose Homeostasis and β‐Cell Function in Diabetes Rats

Advanced Functional Materials, EarlyView.
An oral nanoplatform, MOP@T@D, which can maintain glucose homeostasis and restore islet β cells in diabetic rats is developed. It achieves efficient intestinal absorption and liver‐targeted delivery. The nanoparticle disintegrates only in response to hyperglycemia to release insulin on demand and provides antioxidant protection through selenoprotein ...
Chenxiao Chu, Mingli Wei, Che Bian, Xiaoshuang Bi, Yaxin Deng, Peifu Xiao, Jiansong Zhao, Yuying Wang, Haibing He, Jingxin Gou, Tian Yin, Xing Tang, Li Yang, Hongbo Zhang, Yu Zhang   +14 more
wiley   +1 more source

Biochemical Modulators of Tight Junctions (TJs): Occludin, Claudin-2 and Zonulin as Biomarkers of Intestinal Barrier Leakage in the Diagnosis and Assessment of Inflammatory Bowel Disease Progression

Molecules
Background: Considering the increasing worldwide prevalence of inflammatory bowel disease (IBD), the early diagnosis of this disease is extremely important.
Aleksandra Górecka, Agnieszka Jura-Półtorak, Ewa M. Koźma, Anna Szeremeta, Krystyna Olczyk, Katarzyna Komosińska-Vassev   +5 more
doaj   +1 more source

Occludin Content Modulates Hydrogen Peroxide–Induced Increase in Renal Epithelial Paracellular Permeability [PDF]

, 2015
The ability of hydrogen peroxide (H2O2) to increase paracellular permeability of renal epithelial cell monolayers was examined and the role of occludin in this regulation was investigated.
Amsler, Kurt, Axis, Josephine, Bacallao, Robert L., Janosevic, Danielle   +3 more
core   +1 more source

Occludin: a gatekeeper of brain Infection by HIV-1

Fluids and Barriers of the CNS, 2023
AbstractCompromised structure and function of the blood-brain barrier (BBB) is one of the pathological hallmarks of brain infection by HIV-1. BBB damage during HIV-1 infection has been associated with modified expression of tight junction (TJ) proteins, including occludin. Recent evidence indicated occludin as a redox-sensitive, multifunctional protein
Silvia Torices, Leah Daire, Sierra Simon, Oandy Naranjo, Luisa Mendoza, Timea Teglas, Nikolai Fattakhov, Daniel Adesse, Michal Toborek   +8 more
openaire   +3 more sources

Engineered ETS1‐Nanoconjugate Restores Immune Homeostasis through Dual Immune‐Vascular Modulation in Relapsing and Progressive Multiple Sclerosis

Advanced Healthcare Materials, EarlyView.
The biomimetic nanoplatform IMNP (ETS1 pDNA/PBAE@ITP‐MM) undergoes targeted disassembly at inflammatory vascular sites to release the ETS1 plasmid (pETS1). This release initiates a cascade of effects that inhibit pathogenic pathways and support immune homeostasis. (Abbreviations: EndMT, endothelial‐to‐mesenchymal transition; EC, endothelial cell; TC, T
Feng Zhang, Si‐Bo Yang, Yan Luo, Xiao‐Di Sun, Bo‐Hao Chang, Da‐Qiang Zhou, Jun‐Jie Jiang, Ya‐Nan Li, Jie‐Hong Wu, Hui‐Juan Jin, Hang Yang, Hang Hu, Yi‐Fan Zhou, Bo Hu   +13 more
wiley   +1 more source

CD207‐Positive Dendritic Cells Promote Emphysema Through CD8+ T Cell Pathway in Chronic Obstructive Pulmonary Disease

Advanced Science, EarlyView.
CD207+ dendritic cells (DCs) drive emphysema by promoting CD8⁺ T cell cytotoxicity via Birbeck granule‐dependent MHC‐I antigen presentation. This DC subset is expanded by cigarette smoke‐induced oxidative stress, which triggers granulocyte‐macrophage colony‐stimulating factor (GM‐CSF) release from airway epithelium.
Shurui Xuan, Yunhui Wu, Feng Liu, Heng Fu, Yaqi Meng, Yingwei Ou, Xijing Yuan, Ian M. Adcock, Man Jia, Xiaoning Zeng, Xin Yao   +10 more
wiley   +1 more source

Experimental Basis for the High Oral Toxicity of Dinophysistoxin 1: A Comparative Study of DSP

Toxins, 2014
Okadaic acid (OA) and its analogues, dinophysistoxin 1 (DTX1) and dinophysistoxin 2 (DTX2), are lipophilic and heat-stable marine toxins produced by dinoflagellates, which can accumulate in filter-feeding bivalves.
Diego A. Fernández, M. Carmen Louzao, María Fraga, Natalia Vilariño, Mercedes R. Vieytes, Luis M. Botana   +5 more
doaj   +1 more source