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https://www.readbyqxmd.com/read/28231331/mesenchymal-stromal-cells-mscs-induce-ex-vivo-proliferation-and-erythroid-commitment-of-cord-blood-haematopoietic-stem-cells-cb-cd34-cells
#1
Simone Perucca, Andrea Di Palma, Pier Paolo Piccaluga, Claudia Gemelli, Elisa Zoratti, Giulio Bassi, Edoardo Giacopuzzi, Andrea Lojacono, Giuseppe Borsani, Enrico Tagliafico, Maria Teresa Scupoli, Simona Bernardi, Camilla Zanaglio, Federica Cattina, Valeria Cancelli, Michele Malagola, Mauro Krampera, Mirella Marini, Camillo Almici, Sergio Ferrari, Domenico Russo
A human bone marrow-derived mesenchymal stromal cell (MSCs) and cord blood-derived CD34+ stem cell co-culture system was set up in order to evaluate the proliferative and differentiative effects induced by MSCs on CD34+ stem cells, and the reciprocal influences on gene expression profiles. After 10 days of co-culture, non-adherent (SN-fraction) and adherent (AD-fraction) CD34+ stem cells were collected and analysed separately. In the presence of MSCs, a significant increase in CD34+ cell number was observed (fold increase = 14...
2017: PloS One
https://www.readbyqxmd.com/read/28230866/oridonin-induces-autophagy-via-inhibition-of-glucose-metabolism-in-p53-mutated-colorectal-cancer-cells
#2
Zhuo Yao, Fuhua Xie, Min Li, Zirui Liang, Wenli Xu, Jianhua Yang, Chang Liu, Hongwangwang Li, Hui Zhou, Liang-Hu Qu
The Warburg effect is an important characteristic of tumor cells, making it an attractive therapeutic target. Current anticancer drug development strategies predominantly focus on inhibitors of the specific molecular effectors involved in tumor cell proliferation. These drugs or natural compounds, many of which target the Warburg effect and the underlying mechanisms, still need to be characterized. To elucidate the anticancer effects of a natural diterpenoid, oridonin, we first demonstrated the anticancer activity of oridonin both in vitro and in vivo in colorectal cancer (CRC) cells...
February 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28230862/inactivation-of-lsd1-triggers-senescence-in-trophoblast-stem-cells-by-induction-of-sirt4
#3
Josefina Castex, Dominica Willmann, Toufike Kanouni, Laura Arrigoni, Yan Li, Marcel Friedrich, Michael Schleicher, Simon Wöhrle, Mark Pearson, Norbert Kraut, Michaël Méret, Thomas Manke, Eric Metzger, Roland Schüle, Thomas Günther
Coordination of energy metabolism is essential for homeostasis of stem cells, whereas an imbalance in energy homeostasis causes disease and accelerated aging. Here we show that deletion or enzymatic inactivation of lysine-specific demethylase 1 (Lsd1) triggers senescence in trophoblast stem cells (TSCs). Genome-wide transcriptional profiling of TSCs following Lsd1 inhibition shows gene set enrichment of aging and metabolic pathways. Consistently, global metabolomic and phenotypic analyses disclose an unbalanced redox status, decreased glutamine anaplerosis and mitochondrial function...
February 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28230806/metabolic-profiling-and-identification-of-shikonins-in-root-periderm-of-two-invasive-echium-spp-weeds-in-australia
#4
Dominik Skoneczny, Paul A Weston, Xiaocheng Zhu, Geoff M Gurr, Ragan M Callaway, Russel A Barrow, Leslie A Weston
Metabolic profiling can be successfully implemented to analyse a living system's response to environmental conditions by providing critical information on an organism's physiological state at a particular point in time and allowing for both quantitative and qualitative assessment of a specific subset(s) of key metabolites. Shikonins are highly reactive chemicals that affect various cell signalling pathways and possess antifungal, antibacterial and allelopathic activity. Based on previous bioassay results, bioactive shikonins, are likely to play important roles in the regulation of rhizosphere interactions with neighbouring plants, microbes and herbivores...
February 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28230183/drosophila-imaginal-disc-growth-factor-2-is-a-trophic-factor-involved-in-energy-balance-detoxification-and-innate-immunity
#5
Vaclav Broz, Lucie Kucerova, Lenka Rouhova, Jana Fleischmannova, Hynek Strnad, Peter J Bryant, Michal Zurovec
Drosophila imaginal disc growth factor 2 (IDGF2) is a member of chitinase-like protein family (CLPs) able to induce the proliferation of imaginal disc cells in vitro. In this study we characterized physiological concentrations and expression of IDGF2 in vivo as well as its impact on the viability and transcriptional profile of Drosophila cells in vitro. We show that IDGF2 is independent of insulin and protects cells from death caused by serum deprivation, toxicity of xenobiotics or high concentrations of extracellular adenosine (Ado) and deoxyadenosine (dAdo)...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230101/a-novel-role-for-methyl-cysteinate-a-cysteine-derivative-in-cesium-accumulation-in-arabidopsis-thaliana
#6
Eri Adams, Takae Miyazaki, Aya Hayaishi-Satoh, Minwoo Han, Miyako Kusano, Himanshu Khandelia, Kazuki Saito, Ryoung Shin
Phytoaccumulation is a technique to extract metals from soil utilising ability of plants. Cesium is a valuable metal while radioactive isotopes of cesium can be hazardous. In order to establish a more efficient phytoaccumulation system, small molecules which promote plants to accumulate cesium were investigated. Through chemical library screening, 14 chemicals were isolated as 'cesium accumulators' in Arabidopsis thaliana. Of those, methyl cysteinate, a derivative of cysteine, was found to function within the plant to accumulate externally supplemented cesium...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229591/ass1-is-a-metabolic-regulator-of-colorectal-cancer-pathogenicity
#7
Leslie A Bateman, Wan-Min Ku, Martin J Heslin, Carlo M Contreras, Christine F Skibola, Daniel K Nomura
Like many cancer types, colorectal cancers have dysregulated metabolism that promotes their pathogenic features. In this study, we used the activity-based protein profiling chemoproteomic platform to profile cysteine-reactive metabolic enzymes that are upregulated in primary human colorectal tumors. We identified argininosuccinate synthase 1 (ASS1) as an upregulated target in primary human colorectal tumors and show that pharmacological inhibition or genetic ablation of ASS1 impairs colorectal cancer colorectal pathogenicity...
February 23, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28229566/bioenergetics-and-psychological-profile-of-an-ultra-endurance-walker
#8
Anna Pedrinolla, Giovanni Li Volti, Fabio Galvano, Federico Schena, Valentina Perciavalle, Donatella Di Corrado
BACKGROUND: Ultra endurance walking provides athletes with significant physiological and psychological challenges. In this study ultra endurance walking races are intended as events where the participants have to cover the largest distance within a given time, usually 24, 36, 48 hours, or longer, keeping the pause time within 5% of the total walking time. The aim of the study was to evaluate the metabolic, bioenergetics, and psychological characteristics of a world record ultra endurance walker during three different ultra endurance events characterized by different durations (36h, 48h and 70h)...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28229558/microbial-diversity-of-a-full-scale-uasb-reactor-applied-to-poultry-slaughterhouse-wastewater-treatment-integration-of-16s-rrna-gene-amplicon-and-shotgun-metagenomic-sequencing
#9
Tiago Palladino Delforno, Gileno Vieira Lacerda Júnior, Melline F Noronha, Isabel K Sakamoto, Maria Bernadete A Varesche, Valéria M Oliveira
The 16S rRNA gene amplicon and whole-genome shotgun metagenomic (WGSM) sequencing approaches were used to investigate wide-spectrum profiles of microbial composition and metabolic diversity from a full-scale UASB reactor applied to poultry slaughterhouse wastewater treatment. The data were generated by using MiSeq 2 × 250 bp and HiSeq 2 × 150 bp Illumina sequencing platforms for 16S amplicon and WGSM sequencing, respectively. Each approach revealed a distinct microbial community profile, with Pseudomonas and Psychrobacter as predominant genus for the WGSM dataset and Clostridium and Methanosaeta for the 16S rRNA gene amplicon dataset...
February 23, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28229547/the-association-between-cytomegalovirus-infection-obesity-and-metabolic-syndrome-in-u-s-adult-females
#10
Shannon Fleck-Derderian, William McClellan, Janet M Wojcicki
OBJECTIVE: The purpose of this analysis was to determine whether cytomegalovirus (CMV) infection is associated with the prevalence of metabolic syndrome (MetS) and whether this relationship differs by BMI. METHODS: Data from the 1999-2004 National Health and Nutrition Examination Survey (NHANES) were pooled (N = 2,532). Logistic regression was used for assessing the association between CMV and MetS, stratified by gender and BMI, categorized as normal weight, overweight, obesity, and extreme obesity, and adjusted for age, race/ethnicity, and poverty level...
March 2017: Obesity
https://www.readbyqxmd.com/read/28229521/microbial-potential-for-carbon-and-nutrient-cycling-in-a-geogenic-supercritical-carbon-dioxide-reservoir
#11
Adam J E Freedman, BoonFei Tan, Janelle R Thompson
Microorganisms catalyze carbon cycling and biogeochemical reactions in the deep subsurface and thus may be expected to influence the fate of injected supercritical (sc) CO2 following geological carbon sequestration (GCS). We hypothesized that natural subsurface scCO2 reservoirs, which serve as analogs for the long-term fate of sequestered scCO2 , harbor a "deep carbonated biosphere" with carbon cycling potential. We sampled subsurface fluids from scCO2 -water separators at a natural scCO2 reservoir at McElmo Dome, Colorado for analysis of 16S rRNA gene diversity and metagenome content...
February 22, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28229250/role-of-mirnas-in-human-disease-and-inborn-errors-of-metabolism
#12
Ana Rivera-Barahona, Belén Pérez, Eva Richard, Lourdes R Desviat
MicroRNAs (miRNAs) are short, noncoding RNAs that regulate gene expression posttranscriptionally by base pairing with target messenger RNAs (mRNAs). They are estimated to target ∼60% of all human protein-coding genes and are involved in regulating key physiological processes and intracellular signaling pathways. They also exhibit tissue specificity, and their dysregulation is linked to the progression of pathology. Identifying disease associated miRNAs and their respective targets provides novel molecular insight into disease, enabling the design of new therapeutic strategies...
February 22, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28228764/de-novo-transcriptome-assembly-of-chinese-kale-and-global-expression-analysis-of-genes-involved-in-glucosinolate-metabolism-in-multiple-tissues
#13
Shuanghua Wu, Jianjun Lei, Guoju Chen, Hancai Chen, Bihao Cao, Changming Chen
Chinese kale, a vegetable of the cruciferous family, is a popular crop in southern China and Southeast Asia due to its high glucosinolate content and nutritional qualities. However, there is little research on the molecular genetics and genes involved in glucosinolate metabolism and its regulation in Chinese kale. In this study, we sequenced and characterized the transcriptomes and expression profiles of genes expressed in 11 tissues of Chinese kale. A total of 216 million 150-bp clean reads were generated using RNA-sequencing technology...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28228130/transcriptome-of-the-floral-transition-in-rosa-chinensis-old-blush
#14
Xuelian Guo, Chao Yu, Le Luo, Huihua Wan, Ni Zhen, Tingliang Xu, Jiongrui Tan, Huitang Pan, Qixiang Zhang
BACKGROUND: The floral transition plays a vital role in the life of ornamental plants. Despite progress in model plants, the molecular mechanisms of flowering regulation remain unknown in perennial plants. Rosa chinensis 'Old Blush' is a unique plant that can flower continuously year-round. In this study, gene expression profiles associated with the flowering transition were comprehensively analyzed during floral transition in the rose. RESULTS: According to the transcriptomic profiles, 85,663 unigenes and 1,637 differentially expressed genes (DEGs) were identified, among which 32 unigenes were involved in the circadian clock, sugar metabolism, hormone, and autonomous pathways...
February 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28228125/rna-seq-of-life-stages-of-the-oomycete-phytophthora-infestans-reveals-dynamic-changes-in-metabolic-signal-transduction-and-pathogenesis-genes-and-a-major-role-for-calcium-signaling-in-development
#15
Audrey M V Ah-Fong, Kyoung Su Kim, Howard S Judelson
BACKGROUND: The oomycete Phytophthora infestans causes the devastating late blight diseases of potato and tomato. P. infestans uses spores for dissemination and infection, like many other filamentous eukaryotic plant pathogens. The expression of a subset of its genes during spore formation and germination were studied previously, but comprehensive genome-wide data have not been available. RESULTS: RNA-seq was used to profile hyphae, sporangia, sporangia undergoing zoosporogenesis, motile zoospores, and germinated cysts of P...
February 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28228093/comparative-profiling-of-hepatopancreas-transcriptomes-in-satiated-and-starving-pomacea-canaliculata
#16
Lei Yang, Tian-Yin Cheng, Fei-Yan Zhao
BACKGROUND: Although Pomacea canaliculata is native to South and Central America, it has become one of the most abundant invasive species worldwide and causes extensive damage to agriculture and horticulture. Conventional physical and chemical techniques have been used to eliminate P. canaliculata, but the effects are not ideal. Therefore, it is important to devise a new method based on a greater understanding of the biology of P. canaliculata. However, the molecular mechanisms underlying digestion and absorption in P...
February 22, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28228010/selective-fusion-of-heterogeneous-classifiers-for-predicting-substrates-of-membrane-transporters
#17
Naeem Shaikh, Mahesh Sharma, Prabha Garg
Membrane transporters play a crucial role in determining fate of administered drugs in a biological system. Early identification of plausible transporters for a drug molecule can provide insights into its therapeutic, pharmacokinetic and toxicological profile. In the present study, predictive models for classifying small molecules into substrates and non-substrates of various pharmaceutically important membrane transporters are developed using QSAR and proteochemometric (PCM) approaches. For this purpose, 4575 substrate interactions for these transporters were collected from Metabolism and Transport Database (Metrabase) and literature...
February 23, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28227390/bio-heat-transfer-model-of-electroconvulsive-therapy-effect-of-biological-properties-on-induced-temperature-variation
#18
Marilia M de Oliveira, Paul Wen, Tony Ahfock, Marilia M de Oliveira, Paul Wen, Tony Ahfock, Paul Wen, Marilia M de Oliveira, Tony Ahfock
A realistic human head model consisting of six tissue layers was modelled to investigate the behavior of temperature profile and magnitude when applying electroconvulsive therapy stimulation and different biological properties. The thermo-electrical model was constructed with the use of bio-heat transfer equation and Laplace equation. Three different electrode montages were analyzed as well as the influence of blood perfusion, metabolic heat and electric and thermal conductivity in the scalp. Also, the effect of including the fat layer was investigated...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226326/psoriasis-and-obesity
#19
Peter Jensen, Lone Skov
Psoriasis is a common chronic inflammatory skin disease with a complex pathogenesis consisting of a genetic component, immune dysfunction, and environmental factors. It is associated with numerous comorbidities including psoriatic arthritis, cardiovascular disease, metabolic syndrome, and obesity. Evidence suggests that obesity is a risk factor for incident psoriasis, aggravates existing psoriasis, and that weight reduction may improve the severity of psoriasis in overweight individuals. Excess body weight may interfere with the medical treatment used in psoriasis and adds to the cardiovascular risk profile in these patients, which underscores the importance of effective weight control regimens...
February 23, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28226195/global-transcriptional-response-of-human-liver-cells-to-ethanol-stress-of-different-strength-reveals-hormetic-behavior
#20
Wolfgang Schmidt-Heck, Eva C Wönne, Thomas Hiller, Uwe Menzel, Dirk Koczan, Georg Damm, Daniel Seehofer, Fanny Knöspel, Nora Freyer, Reinhard Guthke, Steven Dooley, Katrin Zeilinger
BACKGROUND: The liver is the major site for alcohol metabolism in the body and therefore, the primary target organ for ethanol-induced toxicity. In this study, we investigated the in vitro response of human liver cells to different ethanol concentrations in a perfused bioartificial liver device that mimics the complex architecture of the natural organ. METHODS: Primary human liver cells were cultured in the bioartificial liver device and treated for 24 hours with medium containing 150 mM (low), 300 mM (medium) or 600 mM (high) ethanol, while a control culture was kept untreated...
February 22, 2017: Alcoholism, Clinical and Experimental Research
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