Search Within
Filtros aplicados
Palabra clave:'h4784'
Mostrando 1-30 of 131 resultados for "


" en el plazo de Papeles
Anqi Huang et al.
eLife, 9 (2020-02-13)
During development, many mutations cause increased variation in phenotypic outcomes, a phenomenon termed decanalization. Phenotypic discordance is often observed in the absence of genetic and environmental variations, but the mechanisms underlying such inter-individual phenotypic discordance remain elusive. Here, using the
Matteo Gasbarri et al.
Microorganisms, 8(12) (2020-12-04)
Severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) depends on angiotensin converting enzyme 2 (ACE2) for cellular entry, but it might also rely on attachment receptors such as heparan sulfates. Several groups have recently demonstrated an affinity of the SARS-CoV2 spike
Takashi Ono et al.
PloS one, 9(2), e88346-e88346 (2014-02-08)
Primate pluripotent stem cells (PSCs), including embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs), hold great potential for research and application in regenerative medicine and drug discovery. To maximize primate PSC potential, a practical system is required for
Elke F Roovers et al.
Developmental cell, 46(3), 285-301 (2018-08-08)
Phase separation represents an important form of subcellular compartmentalization. However, relatively little is known about how the formation or disassembly of such compartments is regulated. In zebrafish, the Balbiani body (Bb) and the germ plasm (Gp) are intimately linked phase-separated
Barbara Klajnert et al.
Nanomedicine : nanotechnology, biology, and medicine, 8(8), 1372-1378 (2012-04-03)
The influence of a GATG (gallic acid-triethylene glycol) dendrimer decorated with 27 terminal morpholine groups ([G3]-Mor) on the aggregation process of Alzheimer's peptide has been investigated. Amyloid fibrils were formed from the Aβ 1-28 peptide and the process was monitored
Jayden Yamakaze et al.
Scientific reports, 11(1), 12429-12429 (2021-06-16)
Strongly oxidative H2O2 is biologically important, but if uncontrolled, would lead to tissue injuries. Lactoperoxidase (LPO) catalyzes the redox reaction of reducing highly reactive H2O2 to H2O while oxidizing thiocyanate (SCN-) to relatively tissue-innocuous hypothiocyanite (OSCN-). SCN- is the only
Sandy Sercu et al.
The Journal of investigative dermatology, 128(6), 1397-1408 (2008-01-18)
The extracellular matrix protein 1 (ECM1) is a secreted glycoprotein, which plays an important role in the structural and functional biology of the skin as demonstrated by the identification of loss-of-function mutations in ECM1 as cause of the genodermatosis lipoid
Carla Cerqueira et al.
Journal of virology, 89(14), 7038-7052 (2015-05-01)
The entry of human papillomaviruses into host cells is a complex process. It involves conformational changes at the cell surface, receptor switching, internalization by a novel endocytic mechanism, uncoating in endosomes, trafficking of a subviral complex to the Golgi complex
Francesco Andreata et al.
STAR protocols, 2(4), 100831-100831 (2021-09-30)
Here, we provide detailed protocols for the isolation of mouse Kupffer cells - the liver-resident macrophages - for phenotypic (e.g., via flow cytometry, mass cytometry, or RNA-sequencing) analyses or for functional experiments involving cell culture. The procedures presented can be adapted
Daisong Wang et al.
Cell, 180(6), 1198-1211 (2020-03-24)
It has generally proven challenging to produce functional β cells in vitro. Here, we describe a previously unidentified protein C receptor positive (Procr+) cell population in adult mouse pancreas through single-cell RNA sequencing (scRNA-seq). The cells reside in islets, do not
Hilda Mirbaha et al.
The Journal of biological chemistry, 290(24), 14893-14903 (2015-04-19)
Tau amyloid assemblies propagate aggregation from the outside to the inside of a cell, which may mediate progression of the tauopathies. The critical size of Tau assemblies, or "seeds," responsible for this activity is currently unknown, but this could be
Samson M Jolly et al.
Cell, 182(6), 1545-1559 (2020-08-28)
In many eukaryotes, Argonaute proteins, guided by short RNA sequences, defend cells against transposons and viruses. In the eubacterium Thermus thermophilus, the DNA-guided Argonaute TtAgo defends against transformation by DNA plasmids. Here, we report that TtAgo also participates in DNA
Emily A Bossart et al.
Breast cancer research and treatment, 175(2), 327-337 (2019-02-25)
Invasive lobular carcinoma (ILC) is a histological subtype of breast cancer that is predominantly estrogen receptor alpha (ER)-positive (+) and is thus treated with endocrine therapies. Herein, we sought to understand the molecular underpinnings of the 4-hydroxytamoxifen (4OHT) resistance in
Sumati Sundaram et al.
Nucleic acids research, 35(13), 4396-4408 (2007-06-20)
The widespread utilization of gene silencing techniques, such as antisense, is impeded by the poor cellular delivery of oligonucleotides (ONs). Rational design of carriers for enhanced ON delivery demands a better understanding of the role of the vector on the
Carla Cerqueira et al.
Molecular therapy. Methods & clinical development, 5, 165-179 (2017-05-13)
Papillomavirus capsids can package a wide variety of nonviral DNA plasmids and deliver the packaged genetic material to cells, making them attractive candidates for targeted gene delivery vehicles. However, the papillomavirus vectors generated by current methods are unlikely to be
Sarah B Frazier et al.
Open glycoscience, 1, 31-39 (2008-01-01)
Glycosaminoglycans (GAGs) are linear polysaccharides that are found in the extracellular matrix and biological fluids of animals where they interact with hundreds of proteins and perform a variety of critical roles. There are five classes of animal GAGs: heparan sulfate
Jorge C G Blanco et al.
Nature communications, 9(1), 1904-1904 (2018-05-17)
Respiratory syncytial virus (RSV) is the most common cause of bronchiolitis in infants. Maternal immunization is an option to increase maternal antibody levels and protect infants from infection. Here we assess the efficacy of virus-like particle (VLP) vaccine candidates containing
Leonel E Rojo et al.
Journal of Alzheimer's disease : JAD, 19(2), 573-589 (2010-01-30)
We describe the interactions of two benzimidazole derivatives, astemizole (AST) and lansoprazole (LNS), with anomalous aggregates of tau protein (neurofibrillary tangles). Interestingly, these compounds, with important medical applications in the treatment of allergies and gastrointestinal disorders respectively, specifically bind to
Claudia M Freitag et al.
Cellular microbiology, 19(6) (2016-12-23)
Flagella are nanofibers that drive bacterial movement. The filaments are generally composed of thousands of tightly packed flagellin subunits with a terminal cap protein, named FliD. Here, we report that the FliD protein of the bacterial pathogen Campylobacter jejuni binds to
Shujie Ning et al.
International journal of molecular sciences, 20(7) (2019-04-17)
Previous studies have demonstrated that monochromatic light affects plasma melatonin (MEL) levels, which in turn regulates hepatic insulin-like growth factor I (IGF-I) secretion via the Mel1c receptor. However, the intracellular signaling pathway initiated by Mel1c remains unclear. In this study
Daniel Watterson et al.
The Journal of general virology, 93(Pt 1), 72-82 (2011-10-01)
The dengue virus (DENV) envelope (E) protein mediates virus entry into cells via interaction with a range of cell-surface receptor molecules. Cell-surface glycosaminoglycans (GAGs) have been shown to play an early role in this interaction, and charged oligosaccharides such as
Apparao B Kummarapurugu et al.
American journal of respiratory cell and molecular biology, 64(2), 260-267 (2020-12-03)
Cystic fibrosis (CF) lung disease is marked by high concentrations of neutrophil elastase (NE) and DNA polymers; both factors contribute to airway disease. Although inhaled recombinant human dornase alfa reduces the frequency of CF pulmonary exacerbations, it also increases free
Elena Garreta et al.
Physiological reports, 2(7) (2014-10-28)
Whole-organ decellularization technology has emerged as a new alternative for the fabrication of bioartificial lungs. Embryonic stem cells (ESC) and induced pluripotent stem cells (iPSC) are potentially useful for recellularization since they can be directed to express phenotypic marker genes
Shobini Jayaraman et al.
Biochimica et biophysica acta. Molecular and cell biology of lipids, 1865(8), 158712-158712 (2020-04-15)
Low-density lipoprotein (LDL) binding to arterial proteoglycans initiates LDL retention and modification in the arterial wall, triggering atherosclerosis. The details of this binding, its effectors, and its ramifications are incompletely understood. We combined heparin affinity chromatography with biochemical, spectroscopic and
Angelika Falsone et al.
Bioscience reports, 33(5) (2013-08-08)
IL (interleukin)-8 [CXCL8 (CXC chemokine ligand 8)] exerts its role in inflammation by triggering neutrophils via its specific GPCRs (G-protein-coupled receptors), CXCR1 (CXC chemokine receptor 1) and CXCR2, for which additional binding to endothelial HS-GAGs (heparan sulphate-glycosaminoglycans) is required. We
William H Thiel et al.
PloS one, 7(9), e43836-e43836 (2012-09-11)
The broad applicability of RNA aptamers as cell-specific delivery tools for therapeutic reagents depends on the ability to identify aptamer sequences that selectively access the cytoplasm of distinct cell types. Towards this end, we have developed a novel approach that
Patricia Himmels et al.
Nature communications, 8, 14583-14583 (2017-03-07)
Formation of a precise vascular network within the central nervous system is of critical importance to assure delivery of oxygen and nutrients and for accurate functionality of neuronal networks. Vascularization of the spinal cord is a highly stereotypical process. However
Xinlei Li et al.
Frontiers in cell and developmental biology, 9, 640667-640667 (2021-04-06)
Extracellular vesicles (EVs) are membrane-limited nanoparticles that are liberated by cells and contain a complex molecular payload comprising proteins, microRNA, RNAs, and lipids. EVs may be taken up by other cells resulting in their phenotypic or functional reprogramming. In the
Katriina Lipponen et al.
Analytical biochemistry, 424(1), 71-78 (2012-03-01)
Atherosclerosis is initiated when lipoproteins bind to proteoglycans (PGs) in arterial walls. The binding is mediated by apolipoprotein apoB-100 and/or apoE, both of which have binding affinity toward heparin. We developed covalently bound heparin coatings for APTES-modified silica capillaries and
Nina C Donner et al.
Neurobiology of stress, 8, 68-81 (2018-03-10)
Expression of TPH2, the rate-limiting enzyme for brain serotonin synthesis, is elevated in the dorsal raphe nucleus (DR) of depressed suicide victims. One hypothesis is that this increase in TPH2 expression is stress-induced. Here, we used an established animal model
Página 1 de 5
Página 1 de 5