Results 91 to 100 of about 837,599 (281)

Copper‐Driven Epithelial Barrier Disruption: A Novel Mechanism of COPD Acute Exacerbations Mediated by the TNF‐α/ATP7A Axis

Advanced Science, EarlyView.
This study reveals a copper‐driven mechanism of COPD acute exacerbations mediated by the TNF‐α/ATP7A axis. TNF‐α suppresses the copper transporter ATP7A via competitive NF‐κB/CREB1/CBP signaling, resulting in intracellular copper accumulation, mitochondrial oxidative stress, and epithelial barrier disruption.
Xinru Xiao, Yongzhe Hao, Ziqi Ding, Zhipeng Wang, Yujia Shi, Yanhua Huang, Chunjian Qi, Qian Zhang   +7 more
wiley   +1 more source

The chromatin assembly factor 1 promotes Rad51-dependent template switches at replication forks by counteracting D-loop disassembly by the RecQ-type helicase Rqh1.

PLoS Biology, 2014
At blocked replication forks, homologous recombination mediates the nascent strands to switch template in order to ensure replication restart, but faulty template switches underlie genome rearrangements in cancer cells and genomic disorders ...
Violena Pietrobon, Karine Fréon, Julien Hardy, Audrey Costes, Ismail Iraqui, Françoise Ochsenbein, Sarah A E Lambert   +6 more
doaj   +1 more source

Role of Chromatin Looping Factors in Leukemia

Annual Review of Pathology: Mechanisms of Disease
Genomic organization requires an intricate balance between the compact storage of genetic material and the ability to finely tune gene regulation. Chromatin looping achieves this balance by organizing concordantly regulated groups of genes and their regulatory elements into loops while also condensing DNA to fit into the small volume of a nucleus.
Shira G, Glushakow-Smith, Zuzana, Tothova   +1 more
openaire   +2 more sources

CTCF Binding Polarity Determines Chromatin Looping

Molecular Cell, 2015
CCCTC-binding factor (CTCF) is an architectural protein involved in the three-dimensional (3D) organization of chromatin. In this study, we assayed the 3D genomic contact profiles of a large number of CTCF binding sites with high-resolution 4C-seq. As recently reported, our data also suggest that chromatin loops preferentially form between CTCF binding
de Wit, Elzo, Vos, Erica S M, Holwerda, Sjoerd J B, Valdes-Quezada, Christian, Verstegen, Marjon J A M, Teunissen, Hans, Splinter, Erik, Wijchers, Patrick J, Krijger, Peter H L, de Laat, Wouter   +9 more
openaire   +4 more sources

TRAIP Mediates Alcohol‐Induced Liver Injury through Regulating β‐catenin Ubiquitin Degradation via Direct Interaction

Advanced Science, EarlyView.
This study reveals that NF‐κB1‐driven TRAIP upregulation in ALD correlates with disease severity. Mechanistically, TRAIP directly binds β‐catenin via its CC domain and promotes its K48‐linked ubiquitination and degradation, which is independent of the GSK3β/β‐TrCP pathway.
Zhan Wu, Mingjiang Liu, Lijuan Liao, Zhaohong Mo, Wenli Xu, Linfeng Mao, Yubing Chen, Qiuli Xie, Ming Yao, Shilian Chen, Stephen Tomlinson, Sebastian Mueller, Songqing He, Guandou Yuan   +13 more
wiley   +1 more source

RNAP II antagonizes mitotic chromatin folding and chromosome segregation by condensin

Cell Reports
Summary: Condensin shapes mitotic chromosomes by folding chromatin into loops, but whether it does so by DNA-loop extrusion remains speculative. Although loop-extruding cohesin is stalled by transcription, the impact of transcription on condensin, which ...
Jérémy Lebreton, Léonard Colin, Elodie Chatre, Pascal Bernard   +3 more
doaj   +1 more source

Characterizing meiotic chromosomes' structure and pairing using a designer sequence optimized for Hi‐C

Molecular Systems Biology, 2018
In chromosome conformation capture experiments (Hi‐C), the accuracy with which contacts are detected varies due to the uneven distribution of restriction sites along genomes.
Héloïse Muller, Vittore F Scolari, Nicolas Agier, Aurèle Piazza, Agnès Thierry, Guillaume Mercy, Stéphane Descorps‐Declere, Luciana Lazar‐Stefanita, Olivier Espeli, Bertrand Llorente, Gilles Fischer, Julien Mozziconacci, Romain Koszul   +12 more
doaj   +1 more source

Topological Spectra and Entropy of Chromatin Loop Networks

Physical Review Letters
The 3D folding of a mammalian gene can be studied by a polymer model, where the chromatin fiber is represented by a semiflexible polymer which interacts with multivalent proteins, representing complexes of DNA-binding transcription factors and RNA polymerases. This physical model leads to the natural emergence of clusters of proteins and binding sites,
Bonato, Andrea, Chiang, Michael, Corbett, Dom, Kitaev, Sergey, Marenduzzo, Davide, Morozov, Alexander, Orlandini, Enzo   +6 more
openaire   +5 more sources

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

Advanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang, Kejia Li, Ning Wang, Zhen Li, Zhiyong Zhang, Rocky S. Tuan, Yangzi Jiang   +6 more
wiley   +1 more source

Hierarchical cooperation of transcription factors from integration analysis of DNA sequences, ChIP-Seq and ChIA-PET data

BMC Genomics, 2019
Background Chromosomal architecture, which is constituted by chromatin loops, plays an important role in cellular functions. Gene expression and cell identity can be regulated by the chromatin loop, which is formed by proximal or distal enhancers and ...
Ruimin Wang, Yunlong Wang, Xueying Zhang, Yaliang Zhang, Xiaoyong Du, Yaping Fang, Guoliang Li   +6 more
doaj   +1 more source