Results 131 to 140 of about 2,416,649 (374)

Elderly Liver Grafts are More Susceptible to Ischemia‐Reperfusion After Prolonged Cold Ischemia than Grafts from Young Donors—An Ex Vivo Liver Machine Perfusion Analysis in Sprague Dawley Rats

Advanced Therapeutics, EarlyView.
This study investigates how donor age and cold ischemia time influence liver perfusion parameters and injury markers. Older livers are more susceptible to longer ischemia times displaying more tissue damage, and higher expression of oxidative stress and apoptosis‐related proteins than livers with shorter ischemia times.
Leonard Boerger, Kilian A. Walter, Anna S. Pietsch, Linda Gilles, Oliver Klein, Karl H. Hillebrandt, Joseph M. G. V. Gassner, Jasper Iske, Johann Pratschke, Felix Krenzien, Igor M. Sauer, Nathanael Raschzok, Simon Moosburner   +12 more
wiley   +1 more source

Phase‐Separation of YAP Mediates AJUBA Super Enhancer Activation to Promote Aberrant Mitosis in Breast Cancer

Advanced Science, EarlyView.
YAP undergoes phase separation to activate the AJUBA super‐enhancer, driving aberrant mitosis through spindle checkpoint dysregulation in breast cancer. This study uncovers a mechanistic link between YAP condensates, super‐enhancer activation, and aneuploidy formation.
Rui Zhang, Qingwen Huang, Zhuo Chen, Weijian Meng, Hongliang Dong, Zhihong Qi, Liang Liu, Jie Shen, Daxing Xie   +8 more
wiley   +1 more source

Microhomology-mediated DNA strand annealing and elongation by human DNA polymerases λ and β on normal and repetitive DNA sequences [PDF]

, 2017
‘Classical' non-homologous end joining (NHEJ), dependent on the Ku70/80 and the DNA ligase IV/XRCC4 complexes, is essential for the repair of DNA double-strand breaks. Eukaryotic cells possess also an alternative microhomology-mediated end-joining (MMEJ)
Crespan, Emmanuele, Czabany, Tibor, Hübscher, Ulrich, Maga, Giovanni   +3 more
core  

A conformational RNA zipper promotes intron ejection during non-conventional XBP1 mRNA splicing. [PDF]

, 2015
The kinase/endonuclease IRE1 is the most conserved signal transducer of the unfolded protein response (UPR), an intracellular signaling network that monitors and regulates the protein folding capacity of the endoplasmic reticulum (ER).
Acosta-Alvear, Diego, Mendez, Aaron S, Peschek, Jirka, Walter, Peter   +3 more
core   +1 more source

Crucial roles for DNA ligase III in mitochondria but not in XRCC1-dependent repair

Nature, 2011
Mammalian cells have three ATP-dependent DNA ligases, which are required for DNA replication and repair. Homologues of ligase I (Lig1) and ligase IV (Lig4) are ubiquitous in Eukarya, whereas ligase III (Lig3), which has nuclear and mitochondrial forms ...
Deni̇z Şi̇mşek, Amy M. Furda, Yankun Gao, Jérôme Artus, E. Brunet, A. Hadjantonakis, B. Van Houten, S. Shuman, P. Mckinnon, M. Jasin   +9 more
semanticscholar   +1 more source

Excessive DNA Double‐Strand Breaks–Associated 3D Genome Reorganization Contributes to Neural Tube Defects with Folate Deficiency

Advanced Science, EarlyView.
Neural tube defects (NTDs) are among the most common congenital malformations. However, the underlying etiology and mechanism remain elusive. Here, the role of DNA double‐strand breaks (DSBs) in 3D genome organization within the NTDs with folate deficiency is reported.
Ting Zhang, Lin Lin, Jianting Li, Caihua Li, Shengjun Liang, Xuemei Bai, Fang Wang, Yihua Bao, Dan Guo, Xiaochen Bo, Hao Li, Hebing Chen, Qiu Xie   +12 more
wiley   +1 more source

Sturdier DNA nanotubes via ligation [PDF]

, 2006
DNA nanotubes are crystalline self-assemblies of DNA tiles ~10 nm in diameter that readily grow tens of micrometers in length. Easy assembly, programmability, and stiffness make them interesting for many applications, but DNA nanotubes begin to melt at ...
Fygenson, D. K., Kumar, Ashish, O’Neill, Patrick, Rothemund, Paul W. K.   +3 more
core   +1 more source

Case Report: Hypomorphic Ligase 4 deficiency – a paradigm of immunodysregulation

Frontiers in Immunology
DNA Ligase 4 is critical to nonhomologous end joining, necessary for V(D)J recombination in T and B cell development. Ligase 4 deficiency is a rare autosomal recessive disorder caused by hypomorphic mutations in the DNA Ligase 4 gene, that can lead to a ...
Catarina Andrade, Ana Isabel Cordeiro, Marta Valente Pinto, Marta Valente Pinto, Conceição Neves, Catarina Martins, Jean-Pierre Villartay, João Farela Neves, João Farela Neves   +8 more
doaj   +1 more source

Evolution of DNA ligases of Nucleo-Cytoplasmic Large DNA viruses of eukaryotes: a case of hidden complexity

Biology Direct, 2009
Background Eukaryotic Nucleo-Cytoplasmic Large DNA Viruses (NCLDV) encode most if not all of the enzymes involved in their DNA replication. It has been inferred that genes for these enzymes were already present in the last common ancestor of the NCLDV ...
Koonin Eugene V, Yutin Natalya
doaj   +1 more source

Flavin Biosynthesis Enhances Extracellular Electron Transfer in Bioengineered Escherichia coli

Advanced Science, EarlyView.
Microbial electronics are promising for energy, sensing, environmental, and synthesis applications. E. coli are engineered with extracellular electron transfer (EET) pathways from a microbe that naturally produces current to enable bioelectronics based on E. coli.
Mohammed Mouhib, Melania Reggente, Hanxuan Wang, Charlotte Roullier, Ardemis A. Boghossian   +4 more
wiley   +1 more source