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显示 1-30 #N/A 143 条结果 关于 "04260" 范围 论文
Anke Hannemann et al.
The Journal of physiology, 592(18), 4039-4049 (2014-07-13)
The heterocyclic aldehyde 5-hydroxymethyl-2-furfural (5HMF) interacts allosterically with the abnormal form of haemoglobin (Hb), HbS, in red blood cells (RBCs) from patients with sickle cell disease (SCD), thereby increasing oxygen affinity and decreasing HbS polymerization and RBC sickling during hypoxia.
Selective accumulation of aggregation-prone proteasome substrates in response to proteotoxic stress.
Florian A Salomons et al.
Molecular and cellular biology, 29(7), 1774-1785 (2009-01-23)
Conditions causing an increase in misfolded or aberrant proteins can impair the activity of the ubiquitin/proteasome system (UPS). This observation is of particular interest, given the fact that proteotoxic stress is closely associated with a large variety of disorders. Although
Carolyn R Schaeffer et al.
Infection and immunity, 83(1), 214-226 (2014-10-22)
Biofilm formation is the primary virulence factor of Staphylococcus epidermidis. S. epidermidis biofilms preferentially form on abiotic surfaces and may contain multiple matrix components, including proteins such as accumulation-associated protein (Aap). Following proteolytic cleavage of the A domain, which has
Hong Seok Shim et al.
Cancer research, 75(6), 1056-1067 (2015-01-24)
Short-term starvation or fasting can augment cancer treatment efficacy and can be effective in delaying cancer progression in the absence of chemotherapy, but the underlying molecular mechanisms of action remain elusive. Here, we describe the role of REV1, a specialized
Michela Ceriani et al.
Experimental cell research, 333(1), 49-59 (2015-02-11)
The tropomyosin-related kinase (Trk) family of receptor tyrosine kinases controls synaptic function, plasticity and sustains differentiation, morphology, and neuronal cell survival. Understanding Trk receptors down-regulation and recycling is a crucial step to point out sympathetic and sensory neuron function and
Kristin R Wade et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(7), 2204-2209 (2015-02-04)
β-Barrel pore-forming toxins (βPFTs) form an obligatory oligomeric prepore intermediate before the formation of the β-barrel pore. The molecular components that control the critical prepore-to-pore transition remain unknown for βPFTs. Using the archetype βPFT perfringolysin O, we show that E183
Ha-Young Jung et al.
Environmental toxicology and pharmacology, 39(1), 125-136 (2014-12-17)
Cadmium (Cd), an environmental and industrial pollutant, generates free radicals responsible for oxidative stress. Cd can also lead to various renal toxic damage such as the proximal tubules and glomerulus dysfunction. Plantamajoside (PMS), a major compound of Plantago asiatica (PA)
Clarina I Manley-King et al.
Bioorganic & medicinal chemistry, 17(8), 3104-3110 (2009-03-28)
Based on a recent report that 1-methyl-3-phenylpyrrolyl analogues are moderately potent reversible inhibitors of the enzyme monoamine oxidase B (MAO-B), a series of structurally related N-methyl-2-phenylmaleimidyl analogues has been prepared and evaluated as inhibitors of MAO-B. In general, the maleimides
Amir Sapir et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(37), E3880-E3889 (2014-09-05)
Many metabolic pathways are critically regulated during development and aging but little is known about the molecular mechanisms underlying this regulation. One key metabolic cascade in eukaryotes is the mevalonate pathway. It catalyzes the synthesis of sterol and nonsterol isoprenoids
Ye Tian et al.
Advanced healthcare materials, 4(3), 413-419 (2014-10-14)
Viral nanoparticles have attracted extensive research interests in diverse applications of diagnosis and therapy. In particular, filamentous M13 bacteriophages have shown great potential in biomedical applications. However, its pathways entering into cells still remain unclear, and this greatly hinders its
Hannah E Boycott et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(41), E3955-E3964 (2013-09-26)
Atrial myocytes are continuously exposed to mechanical forces including shear stress. However, in atrial myocytes, the effects of shear stress are poorly understood, particularly with respect to its effect on ion channel function. Here, we report that shear stress activated
Robert P Lyon et al.
Nature biotechnology, 32(10), 1059-1062 (2014-09-10)
Many antibody-drug conjugates (ADCs) are unstable in vivo because they are formed from maleimide-containing components conjugated to reactive thiols. These thiosuccinimide linkages undergo two competing reactions in plasma: elimination of the maleimide through a retro-Michael reaction, which results in loss
Kevin C Stein et al.
PLoS genetics, 10(5), e1004337-e1004337 (2014-05-09)
Amyloidogenic proteins associated with a variety of unrelated diseases are typically capable of forming several distinct self-templating conformers. In prion diseases, these different structures, called prion strains (or variants), confer dramatic variation in disease pathology and transmission. Aggregate stability has
Carlos Vera-Arzave et al.
Molecules (Basel, Switzerland), 17(8), 8917-8927 (2012-07-28)
Hyptis suaveolens is a medicinal plant that is, according to traditional medicine, considered useful in the treatment of gastric ulcers. Although its gastroprotective activity was reported, the active compounds have not been identified. Therefore, the aim of the present study
Serena Giovinazzi et al.
Oncotarget, 5(11), 3728-3742 (2014-07-09)
USP7 (Ubiquitin Specific processing Protease-7) is a deubiquitinase which, over the past decade emerged as a critical regulator of cellular processes. Deregulation of USP7 activity has been linked to cancer, making USP7 inhibition an appealing anti-cancer strategy. The identification of
Xudong Tang et al.
International journal of molecular sciences, 15(12), 22011-22027 (2014-12-04)
Small ubiquitin-like modifier (SUMO) modification (SUMOylation) is an important and widely used reversible modification system in eukaryotic cells. It regulates various cell processes, including protein targeting, transcriptional regulation, signal transduction, and cell division. To understand its role in the model
Taku Chibazakura et al.
Bioscience, biotechnology, and biochemistry, 79(3), 422-431 (2014-10-28)
5-aminolevulinic acid (5-ALA) is contained in all organisms and a starting substrate for heme biosynthesis. Since administration of 5-ALA specifically leads cancer cells to accumulate protoporphyrin IX (PpIX), a potent photosensitizer, we tested if 5-ALA also serves as a thermosensitizer.
Biswanath Majumder et al.
Nature communications, 6, 6169-6169 (2015-02-28)
Predicting clinical response to anticancer drugs remains a major challenge in cancer treatment. Emerging reports indicate that the tumour microenvironment and heterogeneity can limit the predictive power of current biomarker-guided strategies for chemotherapy. Here we report the engineering of personalized
Julia Kuligowski et al.
Talanta, 127, 181-190 (2014-06-11)
Liquid chromatography-mass spectrometry (LC-MS) has been increasingly used in biomedicine to study the dynamic metabolomic responses of biological systems under different physiological or pathological conditions. To obtain an integrated snapshot of the system, metabolomic methods in biomedicine typically analyze biofluids
Sheng Sun et al.
The Biochemical journal, 466(3), 475-487 (2014-12-17)
Endosomal sorting complex required for transport (ESCRT)-III-mediated membrane invagination and scission are a critical step in multivesicular body (MVB) sorting of ubiquitinated membrane receptors, and generally thought to be required for degradation of these receptors in lysosomes. The adaptor protein
Andrew Rowland et al.
Drug metabolism and disposition: the biological fate of chemicals, 43(1), 147-153 (2014-11-09)
This study characterized the kinetics, variability, and factors that affect UDP-glucuronic acid (UDP-GlcUA) uptake by human liver microsomes (HLM). Biphasic kinetics were observed for UDP-GlcUA uptake by HLM. Uptake affinities (assessed as Kd) of the high- and low-affinity components differed
M Sortino et al.
Bioorganic & medicinal chemistry, 19(9), 2823-2834 (2011-04-13)
The synthesis, in vitro evaluation and SAR studies of 67 maleimides and derivatives acting as antifungal agents are reported. A detailed SAR study supported by theoretical calculations led us to determine that: an intact maleimido ring appears to be necessary
Andrew J Franklin et al.
Biophysical journal, 102(11), 2536-2544 (2012-06-21)
Striated muscle contraction is regulated by the actin binding proteins tropomyosin and troponin. Defects in these proteins lead to myopathies and cardiomyopathies. Deletion of the 14 C-terminal residues of cardiac troponin T leads to hypertrophic cardiomyopathy. We showed earlier that
Chunyuan Guo et al.
Biochimica et biophysica acta, 1852(3), 482-489 (2014-12-24)
SUMOylation is a form of post-translational modification where small ubiquitin-like modifiers (SUMO) are covalently attached to target proteins to regulate their properties. SUMOylation has been demonstrated during cell stress and implicated in cellular stress response. However, it is largely unclear
Samantha L Scudder et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 34(50), 16637-16649 (2014-12-17)
The trafficking of AMPA receptors (AMPARs) to and from synapses is crucial for synaptic plasticity. Previous work has demonstrated that AMPARs undergo activity-dependent ubiquitination by the E3 ubiquitin ligase Nedd4-1, which promotes their internalization and degradation in lysosomes. Here, we
Catherine Baud et al.
Nature communications, 5, 5271-5271 (2014-10-21)
TpsB proteins are Omp85 superfamily members that mediate protein translocation across the outer membrane of Gram-negative bacteria. Omp85 transporters are composed of N-terminal POTRA domains and a C-terminal transmembrane β-barrel. In this work, we track the in vivo secretion path
Minggang Tian et al.
Organic & biomolecular chemistry, 12(32), 6128-6133 (2014-07-06)
Cysteine (Cys) plays important roles in many physiological processes of eukaryotic cells and its detection in cells is of fundamental significance. However, glutathione (GSH), homocysteine, N-acetyl-L-cysteine and other thiols greatly hamper the detection of Cys. In particular, GSH strongly interferes
Kanako Maki et al.
PloS one, 10(4), e0122986-e0122986 (2015-04-16)
Asthma is a chronic inflammatory disorder of the airways, involving oxidative stress. Upon oxidative stress, glutathione covalently binds to protein thiols to protect them against irreversible oxidation. This posttranslational modification, known as protein S-glutathionylation, can be reversed by glutaredoxin 1
Brett J Roberts et al.
Journal of cell science, 127(Pt 17), 3782-3793 (2014-07-09)
Desmosomes are prominent adhesive junctions found in various epithelial tissues. The cytoplasmic domains of desmosomal cadherins interact with a host of desmosomal plaque proteins, including plakophilins, plakoglobin and desmoplakin, which, in turn, recruit the intermediate filament cytoskeleton to sites of
Takamichi Shintani et al.
Blood cells, molecules & diseases, 53(4), 211-218 (2014-08-03)
We examined the biological functions of the gene Cbl in erythropoietin (EPO) signaling using Cbl-deficient F-36P human erythroleukemia cells by the introduction of the Cbl siRNA expression vector. Knockdown of Cbl promoted EPO-dependent proliferation and survival of F-36P cells, especially
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