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International Journal of Biochemistry & Cell Biology

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https://www.readbyqxmd.com/read/28527816/adar1-is-targeted-by-mir-143-to-regulate-il-1%C3%AE-induced-endothelial-activation-through-the-nf%C3%AE%C2%BAb-pathway
#1
Yuanzhuo Chen, Hu Peng, Shuqin Zhou, Yugang Zhuang
Excessive endothelial activation by inflammatory mediators is a critical contributing factor of sepsis pathophysiology. ADAR1 (adenosine deaminase acting on RNA), an enzyme that binds and edits double-stranded RNAs, exhibits immune regulatory properties. Whether ADAR1 is involved in the pathophysiology of sepsis is unclear. In the present study, we used human umbilical endothelial cells (HUVECs) as an in vitro model system to investigate the roles of ADAR1 in interleukin (IL)-1β-induced endothelial activation...
May 17, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28526615/lung-inflammation-after-bleomycin-treatment-in-mice-selection-of-an-accurate-normalization-strategy-for-gene-expression-analysis-in-an-ex-vivo-and-in-vitro-model
#2
Veronica Della Latta, Manuela Cabiati, Silvia Burchielli, Giada Frenzilli, Margherita Bernardeschi, Antonella Cecchettini, Federica Viglione, Maria-Aurora Morales, Silvia Del Ry
Pulmonary fibrosis (PF) is the most common and aggressive interstitial lung disease, characterized by a patchy development of fibrosis leading to progressive destruction of the normal lung architecture which is preceded by an inflammatory process. Gene expression studies are important to understand the development of PF but the accuracy and reproducibility of Real-Time PCR depend on appropriate normalization strategies. This study aimed to analyze the expression variability of eight commonly used reference genes during the initial inflammatory phase of bleomycin-induced PF in a mouse model and to verify whether the selected reference genes could be applied to an in-vitro model of BLM-treated primary murine lung fibroblasts...
May 16, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28526614/human-aldehyde-dehydrogenase-3a1-aldh3a1-exhibits-chaperone-like-function
#3
Georgia-Persephoni Voulgaridou, Ilias Tsochantaridis, Theodora Mantso, Rodrigo Franco, Mihalis I Panayiotidis, Aglaia Pappa
Aldehyde dehydrogenase 3A1 (ALDH3A1) is a metabolic enzyme that catalyzes the oxidation of various aldehydes. Certain types of epithelial tissues in mammals, especially those continually exposed to environmental stress (e.g., corneal epithelium), express ALDH3A1 at high levels and its abundance in such tissues is perceived to help to maintain cellular homeostasis under conditions of oxidative stress. Metabolic as well as non-metabolic roles for ALDH3A1 have been associated with its mediated resistance to cellular oxidative stress...
May 16, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28522343/exogenous-cathepsin-v-protein-protects-human-cardiomyocytes-hcm-from-angiotensin-%C3%A2-induced-hypertrophy
#4
Kun Huang, Lu Gao, Ming Yang, Jiliang Wang, Zheng Wang, Lin Wang, Guobin Wang, Huili Li
Angiotensin (Ang) Ⅱ-induced cardiac hypertrophy can deteriorate to heart failure, a leading cause of mortality. Endogenous Cathepsin V (CTSV) has been reported to be cardioprotective against hypertrophy. However, little is known about the effect of exogenous CTSV on cardiac hypertrophy. We used the human cardiomyocytes HCM as a cell model to investigate the effects of exogenous CTSV on Ang Ⅱ-induced cardiac cell hypertrophy. Cell surface area and expression of classical markers of hypertrophy were analyzed...
May 15, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28506857/foxk2-regulted-by-mir-1271-5p-promotes-cell-growth-and-indicates-unfavorable-prognosis-in-hepatocellular-carcinoma
#5
Mei-Fang Lin, Yu-Feng Yang, Zhen-Peng Peng, Mei-Fang Zhang, Jin-Yu Liang, Wei Chen, Xu-Hui Liu, Yan-Ling Zheng
The forkhead transcription factor FOXK2 has been implicated in the progression of human cancers, but its role and clinical significance in hepatocellular carcinoma (HCC) have not been explored. Here we showed that FOXK2 expression was increased and associated with tumor size, TNM stage and vascular invasion. High FOXK2 expression was correlated with poor overall and disease-free survival in two independent cohorts consisting of 864 patients with HCC. The prognostic value of FOXK2 was validated by stratified survival analyses in subgroups difined by factors contributing to worse survival...
May 12, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28504190/expression-and-alternative-splicing-of-the-cyclin-dependent-kinase-inhibitor-3-gene-in-human-cancer
#6
W Douglas Cress, Peng Yu, Jie Wu
The cyclin-dependent kinase inhibitor-3 (CDKN3) gene encodes a dual-specificity protein tyrosine phosphatase that dephosphorylates CDK1/CDK2 and other proteins. CDKN3 is often overexpressed in human cancer, and this overexpression correlates with reduced survival in several types of cancer. CDKN3 transcript variants and mutations have also been reported. The mechanism of CDKN3 overexpression and the role of CDKN3 transcript variants in human cancer are not entirely clear. Here, we review the literature and provide additional data to assess the correlation of CDKN3 expression with patient survival...
May 11, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28504189/ezrin-ser66-phosphorylation-regulates-invasion-and-metastasis-of-esophageal-squamous-cell-carcinoma-cells-by-mediating-filopodia-formation
#7
Li-Yan Li, Ying-Hua Xie, Yang-Min Xie, Lian-Di Liao, Xiu-E Xu, Qiang Zhang, Fa-Min Zeng, Li-Hua Tao, Wen-Ming Xie, Jian-Jun Xie, Li-Yan Xu, En-Min Li
BACKGROUND: Ezrin, links the plasma membrane to the actin cytoskeleton, and plays an important role in the development and progression of human esophageal squamous cell carcinoma (ESCC). However, the roles of ezrin S66 phosphorylation in tumorigenesis of ESCC remain unclear. METHODS: Distribution of ezrin in membrane and cytosol fractions was examined by analysis of detergent-soluble/-insoluble fractions and cytosol/membrane fractionation. Both immunofluorescence and live imaging were used to explore the role of ezrin S66 phosphorylation in the behavior of ezrin and actin in cell filopodia...
May 11, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28501606/diabetes-present-and-future
#8
EDITORIAL
Roberto Coppari
No abstract text is available yet for this article.
May 10, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28495310/resveratrol-inhibits-urban-particulate-matter-induced-cox-2-pge2-release-in-human-fibroblast-like-synoviocytes-via-the-inhibition-of-activation-of-nadph-oxidase-ros-nf-%C3%AE%C2%BAb
#9
Ming-Horng Tsai, Lee-Fen Hsu, Chiang-Wen Lee, Yao-Chang Chiang, Ming-Hsueh Lee, Jia-Mei How, Ching-Mei Wu, Chieh-Liang Huang, I-Ta Lee
Human fibroblast-like synoviocytes (FLSs) play a role in joint synovial inflammation in rheumatoid arthritis (RA). Some evidence indicates that particulate matter (PM) in air pollution could contribute to the progression of RA. However, more research is needed to clarify this relationship. Up-regulation of cyclooxygenase (COX)-2 and its metabolite prostaglandin E2 (PGE2) are implicated in various inflammatory diseases. Resveratrol, a polyphenol found mainly in grapes and red wine, has antioxidant and anti-inflammatory activities...
May 8, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28495309/group-ii-introns-in-wheat-mitochondria-have-degenerate-structural-features-and-varied-splicing-pathways
#10
Matthew Ngu, Karen Massel, Linda Bonen
Mitochondrial introns in flowering plant genes are virtually all classified as members of the group II ribozyme family although certain structural features have degenerated to varying degrees over evolutionary time. We are interested in the impact that unconventional intron architecture might have on splicing biochemistry in vivo and we have focused in particular on intronic domains V and VI, which for self-splicing introns provide a key component of the catalytic core and the bulged branchpoint adenosine, respectively...
May 8, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28495571/role-of-iron-in-the-pathogenesis-of-respiratory-disease
#11
REVIEW
Md Khadem Ali, Richard Y Kim, Rafia Karim, Jemma R Mayall, Kristy L Martin, Ali Shahandeh, Firouz Abbasian, Malcolm R Starkey, Veronique Loustaud-Ratti, Daniel Johnstone, Elizabeth A Milward, Philip M Hansbro, Jay C Horvat
Iron is essential for many biological processes, however, too much or too little iron can result in a wide variety of pathological consequences, depending on the organ system, tissue or cell type affected. In order to reduce pathogenesis, iron levels are tightly controlled in throughout the body by regulatory systems that control iron absorption, systemic transport and cellular uptake and storage. Altered iron levels and/or dysregulated homeostasis have been associated with several lung diseases, including chronic obstructive pulmonary disease, lung cancer, cystic fibrosis, idiopathic pulmonary fibrosis and asthma...
May 7, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28483672/acetoacetate-is-a-more-efficient-energy-yielding-substrate-for-human-mesenchymal-stem-cells-than-glucose-and-generates-fewer-reactive-oxygen-species
#12
Mary Board, Colleen Lopez, Christian van den Bos, Richard Callaghan, Kieran Clarke, Carolyn Carr
Stem cells have been assumed to demonstrate a reliance on anaerobic energy generation, suited to their hypoxic in vivo environment. However, we found that human mesenchymal stem cells (hMSCs) have an active oxidative metabolism with a range of substrates. More ATP was consistently produced from substrate oxidation than glycolysis by cultured hMSCs. Strong substrate preferences were shown with the ketone body, acetoacetate, being oxidised at up to 35 times the rate of glucose. ROS-generation was 45-fold lower during acetoacetate oxidation compared with glucose and substrate preference may be an adaptation to reduce oxidative stress...
May 5, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28483671/activation-of-mmp-9-activity-by-acrolein-in-saliva-from-patients-with-primary-sj%C3%A3-gren-s-syndrome-and-its-mechanism
#13
Takeshi Uemura, Takehiro Suzuki, Ryotaro Saiki, Naoshi Dohmae, Satoshi Ito, Hoyu Takahashi, Toshihiko Toida, Keiko Kashiwagi, Kazuei Igarashi
We have recently reported that the altered recognition patterns of immunoglobulins due to acrolein conjugation are at least partially responsible for autoimmune diseases in patients with primary Sjögren's syndrome (pSS). In the current study, it was found that the specific activity (activity/ng protein) of metalloproteinase-9 (MMP-9) in saliva was elevated about 2.4-fold in pSS patients. Accordingly, it was examined whether MMP-9 is activated by acrolein. It was found that the MMP-9 with 92kDa molecular weight was activated by acrolein...
May 5, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28483670/role-of-14-3-3%C3%AE-protein-on-cardiac-fatty-acid-metabolism-and-macrophage-polarization-after-high-fat-diet-induced-type-2-diabetes-mellitus
#14
Remya Sreedhar, Somasundaram Arumugam, Rajarajan A Thandavarayan, Vengadeshprabhu Karuppagounder, Yusuke Koga, Takashi Nakamura, Meilei Harima, Kenichi Watanabe
Diabetic cardiomyopathy (DCM), a metabolic disorder, is one of the leading causes of mortality around the world and its pathogenesis involves cardiac inflammation and altered metabolic profile. Altered fatty acid metabolism during DCM can cause macrophage polarization in which inflammatory M1 phenotype dominates over the anti-inflammatory M2 phenotype. Hence, it is essential to identify a specific target, which could revert the metabolic profile and thereby reducing the M1 macrophage polarization. 14-3-3η protein has several cellular protective functions especially in the heart as plenty of reports available in various animal models of heart failure including diabetes mellitus...
May 5, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28483669/mechanisms-of-pulmonary-fibrosis-induced-by-core-fucosylation-in-pericytes
#15
Wei Sun, HaiYing Tang, Lili Gao, Xiuna Sun, Jia Liu, WeiDong Wang, Taihua Wu, Hongli Lin
Pulmonary fibrosis is a common outcome of a variety of pulmonary interstitial diseases, and myofibroblasts are the main culprit for this process. Recent studies have found that pericytes are one of the major sources of myofibroblasts; the transformation of which involves a complex process of activation of TGF-β/Smad2/3 and PDGFβ/Erk signaling pathways. We have reported that the transforming growth factor-β receptor and platelet-derived growth factor-β receptor (TGF-βR I and PDGFβR, respectively) are modified by glycosylation...
May 5, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28483668/doxorubicin-induced-cardiomyocyte-apoptosis-role-of-mitofusin-2
#16
Han Tang, Aibin Tao, Jia Song, Qian Liu, Hao Wang, Tao Rui
BACKGROUND: Doxorubicin (DOX) is an anti-tumor agent that is widely used in clinical setting for cancer treatment. The application of the DOX, however, is limited by its cardiac toxicity which can induce heart failure through an undefined mechanism. Mitofusin 2 (Mfn2) is a mitochondrial GTPase fusion protein that is located on the outer membrane of mitochondria (OMM). The Mfn2 plays an important role in mitochondrial fusion and fission. The aim of this study is to identify the role of the Mfn2 in DOX-induced cardiomyocyte apoptosis...
May 5, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28483667/effect-of-brain-derived-neurotrophic-factor-bdnf-on-hepatocyte-metabolism
#17
Yoni Genzer, Nava Chapnik, Oren Froy
Brain-derived neurotrophic factor (BDNF) plays crucial roles in the development, maintenance, plasticity and homeostasis of the central and peripheral nervous systems. Perturbing BDNF signaling in mouse brain results in hyperphagia, obesity, hyperinsulinemia and hyperglycemia. Currently, little is known whether BDNF affects liver tissue directly. Our aim was to determine the metabolic signaling pathways activated after BDNF treatment in hepatocytes. Unlike its effect in the brain, BDNF did not lead to activation of the liver AKT pathway...
May 5, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28483666/docosahexaenoic-acid-inhibits-il-6-expression-via-ppar%C3%AE-mediated-expression-of-catalase-in-cerulein-stimulated-pancreatic-acinar-cells
#18
Eun Ah Song, Joo Weon Lim, Hyeyoung Kim
Cerulein pancreatitis mirrors human acute pancreatitis. In pancreatic acinar cells exposed to cerulein, reactive oxygen species (ROS) mediate inflammatory signaling by Janus kinase (JAK) 2/signal transducer and activator of transcription (STAT) 3, and cytokine induction. Docosahexaenoic acid (DHA) acts as an agonist of peroxisome proliferator activated receptor γ (PPARγ), which mediates the expression of some antioxidant enzymes. We hypothesized that DHA may induce PPARγ-target catalase expression and reduce ROS levels, leading to the inhibition of JAK2/STAT3 activation and IL-6 expression in cerulein-stimulated acinar cells...
May 5, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28483665/hypoxia-decreases-ros-level-in-human-fibroblasts
#19
G Sgarbi, G Gorini, A Costanzini, S Barbato, G Solaini, A Baracca
We have previously demonstrated that cells adapt to hypoxia using different metabolic reprogramming mechanisms depending on metabolism. We now investigate how the different adapting mechanisms affect reactive oxygen species (ROS) levels, and how ROS levels and cellular metabolism are linked. We show that when skin fibroblasts grew under short-term hypoxia (1% oxygen tension) ROS level markedly decreased (-50%) whatever substrate was available to the cells. Indeed, cellular ROS level linearly and directly decreased with oxygen tension...
May 5, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28478266/the-hdac-inhibitor-saha-does-not-rescue-cftr-membrane-expression-in-cystic-fibrosis
#20
Anne Bergougnoux, Aurélie Petit, Lucie Knabe, Estelle Bribes, Raphaël Chiron, Albertina De Sario, Mireille Claustres, Nicolas Molinari, Isabelle Vachier, Magali Taulan-Cadars, Arnaud Bourdin
The development of suitable Cystic Fibrosis (CF) models for preclinical bench tests of therapeutic candidates is challenging. Indeed, the validation of molecules to rescue the p.Phe508del-CFTR channel (encoded by the Cystic Fibrosis Transmembrane conductance Regulator gene carrying the p.Phe508del mutation) requires taking into account their overall effects on the epithelium. Suberoylanilide Hydroxamic Acid (SAHA), a histone deacetylase inhibitor (HDACi), was previously shown to be a CFTR corrector via proteostasis modulation in CFTR-deficient immortalized cells...
May 3, 2017: International Journal of Biochemistry & Cell Biology
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