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Cellular and Molecular Life Sciences: CMLS

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https://www.readbyqxmd.com/read/28536788/erratum-to-bmp-type-ii-receptor-as-a-therapeutic-target-in-pulmonary-arterial-hypertension
#1
Mar Orriols, Maria Catalina Gomez-Puerto, Peter Ten Dijke
No abstract text is available yet for this article.
May 23, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28536787/carbon-nanotubes-as-anti-bacterial-agents
#2
REVIEW
Teodora Mocan, Cristian T Matea, Teodora Pop, Ofelia Mosteanu, Anca Dana Buzoianu, Soimita Suciu, Cosmin Puia, Claudiu Zdrehus, Cornel Iancu, Lucian Mocan
Multidrug-resistant bacterial infections that have evolved via natural selection have increased alarmingly at a global level. Thus, there is a strong need for the development of novel antibiotics for the treatment of these infections. Functionalized carbon nanotubes through their unique properties hold great promise in the fight against multidrug-resistant bacterial infections. This new family of nanovectors for therapeutic delivery proved to be innovative and efficient for the transport and cellular translocation of therapeutic molecules...
May 23, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28534085/atp-induced-ca-2-signalling-mechanisms-in-the-regulation-of-mesenchymal-stem-cell-migration
#3
REVIEW
Lin-Hua Jiang, Fatema Mousawi, Xuebin Yang, Sėbastien Roger
The ability of cells to migrate to the destined tissues or lesions is crucial for physiological processes from tissue morphogenesis, homeostasis and immune responses, and also for stem cell-based regenerative medicines. Cytosolic Ca(2+) is a primary second messenger in the control and regulation of a wide range of cell functions including cell migration. Extracellular ATP, together with the cognate receptors on the cell surface, ligand-gated ion channel P2X receptors and a subset of G-protein-coupled P2Y receptors, represents common autocrine and/or paracrine Ca(2+) signalling mechanisms...
May 22, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28534084/the-emerging-link-between-o-glcnacylation-and-neurological-disorders
#4
REVIEW
Xiaofeng Ma, He Li, Yating He, Junwei Hao
O-linked β-N-acetylglucosaminylation (O-GlcNAcylation) is involved in the regulation of many cellular cascades and neurological diseases such as Alzheimer's disease (AD), Parkinson's disease (PD), and stroke. In the brain, the expression of O-GlcNAcylation is notably heightened, as is that of O-linked N-acetylglucosaminyltransferase (OGT) and β-N-acetylglucosaminidase (OGA), the presence of which is prominent in many regions of neurological importance. Most importantly, O-GlcNAcylation is believed to contribute to the normal functioning of neurons; conversely, its dysregulation participates in the pathogenesis of neurological disorders...
May 22, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28534083/synthetic-alpha-synuclein-fibrils-cause-mitochondrial-impairment-and-selective-dopamine-neurodegeneration-in-part-via-inos-mediated-nitric-oxide-production
#5
Victor Tapias, Xiaoping Hu, Kelvin C Luk, Laurie H Sanders, Virginia M Lee, J Timothy Greenamyre
Intracellular accumulation of α-synuclein (α-syn) are hallmarks of synucleinopathies, including Parkinson's disease (PD). Exogenous addition of preformed α-syn fibrils (PFFs) into primary hippocampal neurons induced α-syn aggregation and accumulation. Likewise, intrastriatal inoculation of PFFs into mice and non-human primates generates Lewy bodies and Lewy neurites associated with PD-like neurodegeneration. Herein, we investigate the putative effects of synthetic human PFFs on cultured rat ventral midbrain dopamine (DA) neurons...
May 22, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28523344/role-of-g3bp1-in-glucocorticoid-receptor-mediated-microrna-15b-and-microrna-23a-biogenesis-in-endothelial-cells
#6
Hoi-Hin Kwok, Po-Ying Poon, Kylie Hin-Man Mak, Lin-Yao Zhang, Pei Liu, Huoming Zhang, Nai-Ki Mak, Patrick Ying-Kit Yue, Ricky Ngok-Shun Wong
MicroRNAs (miRNAs) are a family of non-coding RNAs that play crucial roles in regulating various normal cellular responses. Recent studies revealed that the canonical miRNA biogenesis pathway is subject to sophisticated regulation. Hormonal control of miRNA biogenesis by androgen and estrogen has been demonstrated, but the direct effects of the glucocorticoid receptor (GR) on miRNA biogenesis are unknown. This study revealed the role of GR in miRNA maturation. We showed that two GR agonists, dexamethasone and ginsenoside-Rg1 rapidly suppressed the expression of mature miR-15b, miR-23a, and miR-214 in human endothelial cells...
May 18, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28523343/hh-signaling-in-regeneration-of-the-ischemic-heart
#7
REVIEW
Marina Dunaeva, Johannes Waltenberger
Myocardial infarction (MI) is caused by the occlusion of a coronary artery due to underlying atherosclerosis complicated by localized thrombosis. The blockage of blood flow leads to cardiomyocyte (CM) death in the infarcted area. Adult mammalian cardiomyocytes have little capacity to proliferate in response to injury; however, some pathways active during embryogenesis and silent during adult life are recruited in response to tissue injury. One such example is hedgehog (Hh) signaling. Hh is involved in the embryonic development of the heart and coronary vascular system...
May 18, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28516224/psychiatric-behaviors-associated-with-cytoskeletal-defects-in-radial-neuronal-migration
#8
REVIEW
Toshifumi Fukuda, Shigeru Yanagi
Normal development of the cerebral cortex is an important process for higher brain functions, such as language, and cognitive and social functions. Psychiatric disorders, such as schizophrenia and autism, are thought to develop owing to various dysfunctions occurring during the development of the cerebral cortex. Radial neuronal migration in the embryonic cerebral cortex is a complex process, which is achieved by strict control of cytoskeletal dynamics, and impairments in this process are suggested to cause various psychiatric disorders...
May 17, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28503708/stress-and-the-nonsense-mediated-rna-decay-pathway
#9
REVIEW
Alexandra E Goetz, Miles Wilkinson
Cells respond to internal and external cellular stressors by activating stress-response pathways that re-establish homeostasis. If homeostasis is not achieved in a timely manner, stress pathways trigger programmed cell death (apoptosis) to preserve organism integrity. A highly conserved stress pathway is the unfolded protein response (UPR), which senses excessive amounts of unfolded proteins in the ER. While a physiologically beneficial pathway, the UPR requires tight regulation to provide a beneficial outcome and avoid deleterious consequences...
May 13, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28493076/extracellular-vesicles-regulate-the-human-osteoclastogenesis-divergent-roles-in-discrete-inflammatory-arthropathies
#10
Nikolett Marton, Orsolya Tünde Kovács, Eszter Baricza, Ágnes Kittel, Dávid Győri, Attila Mócsai, Florian M P Meier, Carl S Goodyear, Iain B McInnes, Edit I Buzás, György Nagy
OBJECTIVE: Extracellular vesicles (EVs) are subcellular signalosomes. Although characteristic EV production is associated with numerous physiological and pathological conditions, the effect of blood-derived EVs on bone homeostasis is unknown. Herein we evaluated the role of circulating EVs on human osteoclastogenesis. METHODS: Blood samples from healthy volunteers, rheumatoid arthritis (RA) and psoriatic arthritis (PsA) patients were collected. Size-based EV sub-fractions were isolated by gravity-driven filtration and differential centrifugation...
May 10, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28488110/platelets-as-crucial-partners-for-tumor-metastasis-from-mechanistic-aspects-to-pharmacological-targeting
#11
REVIEW
Annalisa Contursi, Angela Sacco, Rosalia Grande, Melania Dovizio, Paola Patrignani
Platelets are anucleated cells that circulate in the blood as sentinels of tissue integrity. In fact, they are rich in a plethora of proteins and other factors stored in different granules which they selectively release upon stimulation. Moreover, platelets synthesize a vast number of lipids and release various types of vesicles, including exosomes which are rich in genetic material. Platelets possess a central function to interact with other cell types, including inflammatory cells and cancer cells. Recent findings have enlightened the capacity of platelets to induce changes in the phenotype of cancer cells which acquire invasiveness thus enhancing their metastatic potential...
May 9, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28478513/fret-studies-of-various-conformational-states-adopted-by-transthyretin
#12
Seyyed Abolghasem Ghadami, Francesco Bemporad, Benedetta Maria Sala, Guido Tiana, Stefano Ricagno, Fabrizio Chiti
Transthyretin (TTR) is an extracellular protein able to deposit into well-defined protein aggregates called amyloid, in pathological conditions known as senile systemic amyloidosis, familial amyloid polyneuropathy, familial amyloid cardiomyopathy and leptomeningeal amyloidosis. At least three distinct partially folded states have been described for TTR, including the widely studied amyloidogenic state at mildly acidic pH. Here, we have used fluorescence resonance energy transfer (FRET) experiments in a monomeric variant of TTR (M-TTR) and in its W41F and W79F mutants, taking advantage of the presence of a unique, solvent-exposed, cysteine residue at position 10, that we have labelled with a coumarin derivative (DACM, acceptor), and of the two natural tryptophan residues at positions 41 and 79 (donors)...
May 6, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28455558/enzyme-substrate-relationships-in-the-ubiquitin-system-approaches-for-identifying-substrates-of-ubiquitin-ligases
#13
REVIEW
Hazel F O'Connor, Jon M Huibregtse
Protein ubiquitylation is an important post-translational modification, regulating aspects of virtually every biochemical pathway in eukaryotic cells. Hundreds of enzymes participate in the conjugation and deconjugation of ubiquitin, as well as the recognition, signaling functions, and degradation of ubiquitylated proteins. Regulation of ubiquitylation is most commonly at the level of recognition of substrates by E3 ubiquitin ligases. Characterization of the network of E3-substrate relationships is a major goal and challenge in the field, as this expected to yield fundamental biological insights and opportunities for drug development...
April 28, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28455557/three-cdk1-sites-in-the-kinesin-5-cin8-catalytic-domain-coordinate-motor-localization-and-activity-during-anaphase
#14
Alina Goldstein, Nurit Siegler, Darya Goldman, Haim Judah, Ervin Valk, Mardo Kõivomägi, Mart Loog, Larisa Gheber
The bipolar kinesin-5 motors perform essential functions in mitotic spindle dynamics. We previously demonstrated that phosphorylation of at least one of the Cdk1 sites in the catalytic domain of the Saccharomyces cerevisiae kinesin-5 Cin8 (S277, T285, S493) regulates its localization to the anaphase spindle. The contribution of these three sites to phospho-regulation of Cin8, as well as the timing of such contributions, remains unknown. Here, we examined the function and spindle localization of phospho-deficient (serine/threonine to alanine) and phospho-mimic (serine/threonine to aspartic acid) Cin8 mutants...
April 28, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28447104/bmp-type-ii-receptor-as-a-therapeutic-target-in-pulmonary-arterial-hypertension
#15
REVIEW
Mar Orriols, Maria Catalina Gomez-Puerto, Peter Ten Dijke
Pulmonary arterial hypertension (PAH) is a chronic disease characterized by a progressive elevation in mean pulmonary arterial pressure. This occurs due to abnormal remodeling of small peripheral lung vasculature resulting in progressive occlusion of the artery lumen that eventually causes right heart failure and death. The most common cause of PAH is inactivating mutations in the gene encoding a bone morphogenetic protein type II receptor (BMPRII). Current therapeutic options for PAH are limited and focused mainly on reversal of pulmonary vasoconstriction and proliferation of vascular cells...
April 26, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28444416/control-of-dna-integrity-in-skeletal-muscle-under-physiological-and-pathological-conditions
#16
REVIEW
Yara Bou Saada, Vlada Zakharova, Boris Chernyak, Carla Dib, Gilles Carnac, Svetlana Dokudovskaya, Yegor S Vassetzky
Skeletal muscle is a highly oxygen-consuming tissue that ensures body support and movement, as well as nutrient and temperature regulation. DNA damage induced by reactive oxygen species is present in muscles and tends to accumulate with age. Here, we present a summary of data obtained on DNA damage and its implication in muscle homeostasis, myogenic differentiation and neuromuscular disorders. Controlled and transient DNA damage appears to be essential for muscular homeostasis and differentiation while uncontrolled and chronic DNA damage negatively affects muscle health...
April 25, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28434038/emerging-potential-of-gene-silencing-approaches-targeting-anti-chondrogenic-factors-for-cell-based-cartilage-repair
#17
REVIEW
Andrea Lolli, Letizia Penolazzi, Roberto Narcisi, Gerjo J V M van Osch, Roberta Piva
The field of cartilage repair has exponentially been growing over the past decade. Here, we discuss the possibility to achieve satisfactory regeneration of articular cartilage by means of human mesenchymal stem cells (hMSCs) depleted of anti-chondrogenic factors and implanted in the site of injury. Different types of molecules including transcription factors, transcriptional co-regulators, secreted proteins, and microRNAs have recently been identified as negative modulators of chondroprogenitor differentiation and chondrocyte function...
April 22, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28432378/advances-in-anti-viral-immune-defence-revealing-the-importance-of-the-ifn-jak-stat-pathway
#18
REVIEW
Nicola Raftery, Nigel J Stevenson
Interferon-alpha (IFN-α) is a potent anti-viral cytokine, critical to the host immune response against viruses. IFN-α is first produced upon viral detection by pathogen recognition receptors. Following its expression, IFN-α embarks upon a complex downstream signalling cascade called the JAK/STAT pathway. This signalling pathway results in the expression of hundreds of effector genes known as interferon stimulated genes (ISGs). These genes are the basis for an elaborate effector mechanism and ultimately, the clearance of viral infection...
April 21, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28432377/emerging-roles-of-calpain-proteolytic-systems-in-macrophage-cholesterol-handling
#19
REVIEW
Takuro Miyazaki, Akira Miyazaki
Calpains are Ca(2+)-dependent intracellular proteases that play central roles in the post-translational processing of functional proteins. In mammals, calpain proteolytic systems comprise the endogenous inhibitor calpastatin as well as 15 homologues of the catalytic subunits and two homologues of the regulatory subunits. Recent pharmacological and gene targeting studies in experimental animal models have revealed the contribution of conventional calpains, which consist of the calpain-1 and -2 isozymes, to atherosclerotic diseases...
April 21, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28421278/an-efficient-method-to-enrich-for-knock-out-and-knock-in-cellular-clones-using-the-crispr-cas9-system
#20
Francesca Niccheri, Riccardo Pecori, Silvestro G Conticello
Clustered Regularly Interspaced Short Palindromic Repeats-associated protein 9 nuclease (CRISPR/Cas9) and Transcription Activator-Like Effector Nucleases (TALENs) are versatile tools for genome editing. Here we report a method to increase the frequency of Cas9-targeted cellular clones. Our method is based on a chimeric construct with a Blasticidin S Resistance gene (bsr) placed out-of-frame by a surrogate target sequence. End joining of the CRISPR/Cas9-induced double-strand break on the surrogate target can place the bsr in frame, thus providing temporary resistance to Blasticidin S: this is used to enrich for cells where Cas9 is active...
April 18, 2017: Cellular and Molecular Life Sciences: CMLS
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