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https://www.readbyqxmd.com/read/28927258/a-proteomics-based-approach-reveals-differential-regulation-of-visceral-adipose-tissue-proteins-between-metabolically-healthy-and-unhealthy-obese-patients
#1
Assim A Alfadda, Afshan Masood, Mohammed Y Al-Naami, Pierre Chaurand, Hicham Benabdelkamel
Obesity and the metabolic disorders that constitute metabolic syndrome are a primary cause of morbidity and mortality in the world. Nonetheless, the changes in the proteins and the underlying molecular pathways involved in the relevant pathogenesis are poorly understood.In this study a proteomic analysis of the visceral adipose tissue isolated from metabolically healthy and unhealthy obese patients was used to identify presence of altered pathway(s) leading to metabolic dysfunction. Samples were obtained from 18 obese patients undergoing bariatric surgery and were subdivided into two groups based on the presence or absence of comorbidities as defined by the International Diabetes Federation...
September 20, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28912681/divergence-in-morris-water-maze-based-cognitive-performance-under-chronic-stress-is-associated-with-the-hippocampal-whole-transcriptomic-modification-in-mice
#2
Seung H Jung, Milene L Brownlow, Matteo Pellegrini, Ryan Jankord
Individual susceptibility determines the magnitude of stress effects on cognitive function. The hippocampus, a brain region of memory consolidation, is vulnerable to stressful environments, and the impact of stress on hippocampus may determine individual variability in cognitive performance. Therefore, the purpose of this study was to define the relationship between the divergence in spatial memory performance under chronically unpredictable stress and an associated transcriptomic alternation in hippocampus, the brain region of spatial memory consolidation...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28912380/exposure-of-neonatal-mice-to-bromine-impairs-their-alveolar-development-and-lung-function
#3
Tamas Jilling, Changchun Ren, Aaron Jefthy Yee, Saurabh Aggarwal, Brian Halloran, Namasivayam Ambalavanan, Sadis Matalon
The halogen bromine (Br2) is used extensively in industry and stored and transported in large quantities. Its accidental or malicious release into the atmosphere has resulted in significant casualties. The pathophysiology of Br2-induced lung injury has been studied in adult animals, but the consequences of Br2 exposure to the developing lung are completely unknown. We exposed neonatal mouse littermates on postnatal day 3 (P3) to either Br2 at 400 ppm for 30 minutes (400/30), to Br2 at 600 ppm for 30 minutes (600/30), or to room air, then returned them to their dams and observed until P14...
September 14, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28903393/eb1-protein-alteration-characterizes-sporadic-but-not-ulcerative-colitis-associated-colorectal-cancer
#4
Timo Gemoll, Sophie L Kollbeck, Karl F Karstens, Gia G Hò, Sonja Hartwig, Sarah Strohkamp, Katharina Schillo, Christoph Thorns, Martina Oberländer, Kathrin Kalies, Stefan Lehr, Jens K Habermann
BACKGROUND: While carcinogenesis in Sporadic Colorectal Cancer (SCC) has been thoroughly studied, less is known about Ulcerative Colitis associated Colorectal Cancer (UCC). This study aimed to identify and validate differentially expressed proteins between clinical samples of SCC and UCC to elucidate new insights of UCC/SCC carcinogenesis and progression. RESULTS: Multiplex-fluorescence two-dimensional gel electrophoresis (2-D DIGE) and mass spectrometry identified 67 proteoforms representing 43 distinct proteins...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28901377/anthocyanin%C3%A2-rich-blackcurrant-extract-inhibits-proliferation-of-the-mcf10a-healthy-human-breast-epithelial-cell-line-through-induction-of-g0-g1-arrest-and-apoptosis
#5
Naoki Nanashima, Kayo Horie, Mitsuru Chiba, Manabu Nakano, Hayato Maeda, Toshiya Nakamura
Blackcurrants (Ribes nigrum L., Grossulariaceae) possess a high content of anthocyanin polyphenols, which have been demonstrated to exhibit beneficial effects on health due to their antioxidant and anticarcinogenic prope-rties. The present study investigated novel functions of anthocyanin‑rich blackcurrant extracts (BCEs) in a healthy mammary epithelial cell line, MCF10A. The percentages of viable cells were 85, 75, 53 and 31% following exposure to 50, 100, 200 and 400 µg/ml BCE, respectively. The half‑maximal response concentration of BCE was 237...
August 29, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28898250/effects-of-proteasome-inhibitor-mg-132-on-the-parasite-schistosoma-mansoni
#6
Enyara R Morais, Katia C Oliveira, Renato G de Paula, Alice M M Ornelas, Érika B C Moreira, Fernanda Rafacho Badoco, Lizandra G Magalhães, Sergio Verjovski-Almeida, Vanderlei Rodrigues
Proteasome is a proteolytic complex responsible for intracellular protein turnover in eukaryotes, archaea and in some actinobacteria species. Previous work has demonstrated that in Schistosoma mansoni parasites, the proteasome inhibitor MG-132 affects parasite development. However, the molecular targets affected by MG-132 in S. mansoni are not entirely known. Here, we used expression microarrays to measure the genome-wide changes in gene expression of S. mansoni adult worms exposed in vitro to MG-132, followed by in silico functional analyses of the affected genes using Ingenuity Pathway Analysis (IPA)...
2017: PloS One
https://www.readbyqxmd.com/read/28894379/mirna-expression-profiling-in-formalin-fixed-paraffin-embedded-endometriosis-and-ovarian-cancer-samples
#7
Ovidiu-Leonard Braicu, Liviuta Budisan, Rares Buiga, Ancuta Jurj, Patriciu Achimas-Cadariu, Laura Ancuta Pop, Cornelia Braicu, Alexandru Irimie, Ioana Berindan-Neagoe
Endometriosis is an inflammatory pathology associated with a negative effect on life quality. Recently, this pathology was connected to ovarian cancer, in particular with endometrioid ovarian cancer. microRNAs (miRNAs) are a class of RNA transcripts ~19-22 nucleotides in length, the altered miRNA pattern being connected to pathological status. miRNAs are highly stable transcripts, and these can be assessed from formalin-fixed paraffin-embedded (FFPE) samples leading to the identification of miRNAs that could be developed as diagnostic and prognostic biomarkers, in particular those involved in malignant transformation...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28883618/cg200745-an-hdac-inhibitor-induces-anti-tumour-effects-in-cholangiocarcinoma-cell-lines-via-mirnas-targeting-the-hippo-pathway
#8
Dawoon E Jung, Soo Been Park, Kahee Kim, Chanyang Kim, Si Young Song
Cholangiocarcinoma is a devastating malignancy with fatal complications that exhibits low response and resistance to chemotherapy. Here, we evaluated the anticancer effects of CG200745, a novel histone deacetylase inhibitor, either alone or in combination with standard chemotherapy drugs in cholangiocarcinoma cells. CG200745 dose-dependently reduced the viability of cholangiocarcinoma cells in vitro and decreased tumour volume and weight in a xenograft model. Administering CG200745 along with other chemotherapeutic agents including gemcitabine, 5-fluorouracil (5-FU), cisplatin, oxaliplatin, or gemcitabine plus cisplatin further decreased cholangiocarcinoma cell viability, with a combination index < 1 that indicated synergistic action...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28880546/transcriptomic-and-functional-analyses-on-the-effects-of-dioxin-on-insulin-secretion-of-pancreatic-islets-and-%C3%AE-cells
#9
Keng Po Lai, Hin Ting Wan, Alice Hoi-Man Ng, Jing Woei Li, Ting-Fung Chan, Chris Kong-Chu Wong
In this study, transcriptomic and Ingenuity Pathway Analysis (IPA) underlined that an ex-vivo TCDD treatment (0.1 nM) stimulated insulin-release in mouse pancreatic islets via the effect on the Akt-mTOR-p70S6K, AMPK and ERK1/2 pathways. Functional studies using both ex-vivo islets and the mouse β-cell-line (Min-6) validated the stimulatory effects of TCDD (0.1 and 1 nM) on basal-insulin secretion. At 0.1 nM TCDD treatment on Min-6, western blot analysis showed activation of ERK1/2 and decreased expression of pyruvate dehydrogenase kinase (PDK)...
September 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28877888/a-novel-18-marker-panel-predicting-clinical-outcome-in-breast-cancer
#10
Jana Biermann, Szilárd Nemes, Toshima Z Parris, Hanna Engqvist, Elisabeth Werner Rönnerman, Eva Forssell-Aronsson, Gunnar Steineck, Per Karlsson, Khalil Helou
BACKGROUND: Gene expression profiling has made considerable contributions to our understanding of cancer biology and clinical care. This study describes a novel gene expression signature for breast cancer-specific survival that was validated using external datasets. METHODS: Gene expression signatures for invasive breast carcinomas (mainly Luminal B subtype) corresponding to 136 patients were analysed using Cox regression and the effect of each gene on disease-specific survival (DSS) was estimated...
September 6, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28877882/mechanotransduction-signaling-in-podocytes-from-fluid-flow-shear-stress
#11
Tarak Srivastava, Hongying Dai, Daniel P Heruth, Uri S Alon, Robert E Garola, Jianping Zhou, R Scott Duncan, Ashraf El-Meanawy, Ellen T McCarthy, Ram Sharma, Mark L Johnson, Virginia J Savin, Mukut Sharma
Recently we and others have found that hyperfiltration-associated increase in biomechanical forces, namely tensile stress and fluid flow shear stress (FFSS) can directly and distinctly alter podocyte structure and function. The ultrafiltrate flow over the major processes and cell body generates FFSS to podocyte. Our previous work suggests that COX2-PGE2-EP2 axis plays an important role in mechanoperception of FFSS in podocyte (Srivastava et al. Am J Physiol Renal Physiol 307: F1323-F1333, 2014). To address mechanotransduction of the perceived mechanical stimulus through EP2 receptor, cultured podocytes were exposed to FFSS (2 dynes/cm2) for 2hrs...
September 6, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28872639/gene-expression-associated-with-suicide-attempts-in-us-veterans
#12
J D Flory, D Donohue, S Muhie, R Yang, S A Miller, R Hammamieh, K Ryberg, R Yehuda
According to a recent report from the Office of Suicide Prevention in the US Department of Veterans Affairs, veterans represent 8.5% of the US population, but account for 18% of all deaths from suicide. The aim of this study of psychiatric patients (n=39; 87% male) was to compare blood gene expression data from veterans with a history of one or more suicide attempts to veterans who had never attempted suicide. The attempter and non-attempter groups were matched for age and race/ethnicity, and both groups included veterans with a diverse psychiatric history that included posttraumatic stress disorder (PTSD) and substance-use disorders...
September 5, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28870788/effect-of-brain-tumor-presence-during-radiation-on-tissue-toxicity-transcriptomic-and-metabolic-changes
#13
Janice A Zawaski, Omaima M Sabek, Horatiu Voicu, Hon-Chiu Eastwood Leung, M Waleed Gaber
PURPOSE: Radiation therapy (RT) causes functional and transcriptomic changes in the brain; however, most studies have been carried out in normal rodent brains. Here, the long-term effect of irradiation and tumor presence during radiation was investigated. METHODS AND MATERIALS: Male Wistar rats ∼7 weeks old were divided into 3 groups: sham implant, RT+sham implant, and RT+tumor implant (C6 glioma). Hypofractionated irradiation (8 or 6 Gy/day for 5 days) was localized to a 1-cm strip of cranium starting 5 days after implantation, resulting in complete tumor regression and prolonged survival...
July 12, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28866851/systematic-transcriptome-wide-analysis-of-mrna-mirna-interactions-reveals-the-involvement-of-mir-142-5p-and-its-target-foxo3-in-skeletal-muscle-growth-in-chickens
#14
Zhenhui Li, Bahareldin Ali Abdalla, Ming Zheng, Xiaomei He, Bolin Cai, Peigong Han, Hongjia Ouyang, Biao Chen, Qinghua Nie, Xiquan Zhang
The goal of this study was to perform a systematic transcriptome-wide analysis of mRNA-miRNA interactions and to identify candidates involved in the interplay between miRNAs and mRNAs that regulate chicken muscle growth. We used our previously published mRNA (GSE72424) and miRNA (GSE62971) deep sequencing data from two-tailed samples [i.e., the highest (h) and lowest (l) body weights] of Recessive White Rock (WRR) and Xinghua (XH) chickens to conduct integrative analyses of the miRNA-mRNA interactions involved in chicken skeletal muscle growth...
September 2, 2017: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/28863345/the-stromal-microenvironment-modulates-mitochondrial-oxidative-phosphorylation-in-chronic-lymphocytic-leukemia-cells
#15
Hima V Vangapandu, Mary L Ayres, Christopher A Bristow, William G Wierda, Michael J Keating, Kumudha Balakrishnan, Christine M Stellrecht, Varsha Gandhi
Peripheral blood chronic lymphocytic leukemia (CLL) cells are replicationally quiescent mature B-cells. In short-term cultures, supporting stromal cells provide a survival advantage to CLL cells by inducing transcription and translation without promoting proliferation. We hypothesized that the stromal microenvironment augments malignant B cells' metabolism to enable the cells to cope with their energy demands for transcription and translation. We used extracellular flux analysis to assess the two major energy-generating pathways, mitochondrial oxidative phosphorylation (OxPhos) and glycolysis, in primary CLL cells in the presence of three different stromal cell lines...
August 29, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28861005/murine-myocardial-transcriptome-analysis-reveals-a-critical-role-of-cops8-in-the-gene-expression-of-cullin-ring-ligase-substrate-receptors-and-redox-and-vesicle-trafficking-pathways
#16
Ammara Abdullah, Kathleen M Eyster, Travis Bjordahl, Peng Xiao, Erliang Zeng, Xuejun Wang
Background: The COP9 signalosome (CSN) consisting of 8 unique protein subunits (COPS1 through COPS8) serves as the cullin deneddylase, regulating the catalytic dynamics of cullin RING ligases (CRLs), the largest family of ubiquitin ligases Background: The COP9 signalosome (CSN) consisting of 8 unique protein subunits (COPS1 through COPS8) serves as the cullin deneddylase, regulating the catalytic dynamics of cullin RING ligases (CRLs), the largest family of ubiquitin ligases. Supported primarily by the decrease of substrate receptor (SR) proteins of CRLs in cells deficient of a CSN subunit, CSN-mediated cullin deneddylation is believed to prevent autoubiquitination and self-destruction of the SR in active CRLs...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28859701/rna-sequencing-and-pathway-analysis-identify-tumor-necrosis-factor-alpha-driven-small-proline-rich-protein-dysregulation-in-chronic-rhinosinusitis
#17
Vijay R Ramakrishnan, Joseph R Gonzalez, Sarah E Cooper, Henry P Barham, Catherine B Anderson, Eric D Larson, Carlyne D Cool, John D Diller, Kenneth Jones, Sue C Kinnamon
BACKGROUND: Chronic rhinosinusitis (CRS) is a heterogeneous inflammatory disorder in which many pathways contribute to end-organ disease. Small proline-rich proteins (SPRR) are polypeptides that have recently been shown to contribute to epithelial biomechanical properties relevant in T-helper type 2 inflammation. There is evidence that genetic polymorphism in SPRR genes may predict the development of asthma in children with atopy and, correlatively, that expression of SPRRs is increased under allergic conditions, which leads to epithelial barrier dysfunction in atopic disease...
September 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28856086/identification-of-novel-targets-for-multiple-myeloma-through-integrative-approach-with-monte-carlo-cross-validation-analysis
#18
Congjian Liu, Xiang Gu, Zhenxian Jiang
More than one pathway is involved in disease development and progression, and two or more pathways may be interconnected to further affect the disease onset, as functional proteins participate in multiple pathways. Thus, identifying cross-talk among pathways is necessary to understand the molecular mechanisms of multiple myeloma (MM). Based on this, this paper looked at extracting potential pathway cross-talk in MM through an integrative approach using Monte Carlo cross-validation analysis. The gene expression library of MM (accession number: GSE6477) was downloaded from the Gene Expression Omnibus (GEO) database...
September 2017: Journal of Bone Oncology
https://www.readbyqxmd.com/read/28854209/identification-of-a-serum-induced-transcriptional-signature-associated-with-metastatic-cervical-cancer
#19
Anna Palatnik, Shuyun Ye, Christina Kendziorski, Marissa Iden, Jessica S Zigman, Martin J Hessner, Janet S Rader
OBJECTIVE: Tumor cells that escape local tissue control can convert inflammatory cells from tumor suppressors to tumor promoters. Moreover, soluble immune-modulating factors secreted from the tumor environment can be difficult to identify in patient serum due to their low abundance. We used an alternative strategy to infer a metastatic signature induced by sera of cervical cancer patients. METHODS: Sera from patients with local and metastatic cervical cancer were used to induce a disease-specific transcriptional signature in cultured, healthy peripheral blood mononuclear cells (PBMCs)...
2017: PloS One
https://www.readbyqxmd.com/read/28845526/serine-peptidase-inhibitor-kazal-type-i-spink1-promotes-brl-3a-cell-proliferation-via-p38-erk-and-jnk-pathways
#20
Cuifang Chang, Weiming Zhao, Yaru Luo, Lingling Xi, Shasha Chen, Congcong Zhao, Gaiping Wang, Jianlin Guo, Cunshuan Xu
Serine peptidase inhibitor Kazal type I (SPINK1) has the similar spatial structure as epidermal growth factor (EGF); EGF can interact with epidermal growth factor receptor (EGFR) to promote proliferation in different cell types. However, whether SPINK1 can interact with EGFR and further regulate the proliferation of hepatocytes in liver regeneration remains largely unknown. In this study, we investigated the role of SPINK1 in a rat liver hepatocyte line of BRL-3A in vitro. The results showed the upregulation of endogenous Spink1 (gene addition) significantly increased not only the cell viability, cell numbers in S and G2 /M phase, but also upregulated the genes/proteins expression related to cell proliferation and anti-apoptosis in BRL-3A...
August 2017: Cell Biochemistry and Function
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