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https://www.readbyqxmd.com/read/28103583/angiogenesis-related-genes-may-be-a-more-important-factor-than-matrix-metalloproteinases-in-bronchopulmonary-dysplasia-development
#1
Min Yang, Bo-Lin Chen, Jian-Bao Huang, Yan-Ni Meng, Xiao-Jun Duan, Lu Chen, Lin-Rui Li, Yan-Ping Chen
We characterized the expression profile of angiogenesis-related genes (ARG) and matrix metalloproteinase (MMP) genes in preterm infants, with and without bronchopulmonary dysplasia (BPD). We reanalyzed a gene expression dataset for preterm infants from the Gene Expression Omnibus database using the Gene-Cloud of Biotechnology Information platform. A total of 1,652 genes were differentially (1.2-fold change) expressed: 811 were highly expressed in infants with BPD, and 841 were highly expressed in those without BPD...
January 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28103530/an-anti-oxidant-%C3%AE-lipoic-acid-conjugated-oleoyl-sn-phosphatidylcholineas-a-helper-lipid-in-cationic-liposomal-formulations
#2
Priya Dharmalingam, Balakrishna Marrapu, Chandrashekhar Voshavar, Rasagna Nadella, Vignesh Kumar Rangasami, R V Shaji, Salar Abbas, R B N Prasad, Shiva Shanker Kaki, Srujan Marepally
Development of safe non-viral carrier systems for efficient intra-cellular delivery of drugs and genes hold promise in the area of translational research. Liposome based delivery systems have emerged as one of the attractive strategies for efficient delivery of drugs and nucleic acids. To this end, number of investigations was carried on liposomal formulations using lipids for achieving higher efficiency in transfection with lower cytotoxicities. In our efforts to develop safer and efficient liposomal delivery systems, we synthesized a novel anti-oxidant lipid, α-lipoyl, oleyl-sn-phosphatidylcholine (LOPC) and used as a helper lipid in combination with a cationic amphiphile, Di-Stearyl Dihydroxy Ethyl Ammonium Chloride (DSDEAC) and 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) at varying concentrations of LOPC...
January 10, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28103507/circular-banp-an-upregulated-circular-rna-that-modulates-cell-proliferation-in-colorectal-cancer
#3
Mingchen Zhu, Yijun Xu, Yun Chen, Feng Yan
Circular RNAs (circRNAs) are recently identified as widespread and diverse endogenous noncoding RNAs that may harbor vital functions in human and animals. However, the role of circRNAs in the process of tumorigenesis and development of colorectal cancer (CRC) remains vague. Here we characterized the circRNA expression profile from three paired CRC cancerous and adjacent normal tissues by human circRNA array, and identified 136 significantly overexpressed circRNAs and 243 downregulated circRNAs in CRC cancerous tissues (>2-fold changes)...
January 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28103300/expression-profiling-of-ribosome-biogenesis-factors-reveals-nucleolin-as-a-novel-potential-marker-to-predict-outcome-in-aml-patients
#4
Virginie Marcel, Frédéric Catez, Caroline M Berger, Emeline Perrial, Adriana Plesa, Xavier Thomas, Eve Mattei, Sandrine Hayette, Pierre Saintigny, Philippe Bouvet, Jean-Jacques Diaz, Charles Dumontet
Acute myeloid leukemia (AML) is a heterogeneous disease. Prognosis is mainly influenced by patient age at diagnosis and cytogenetic alterations, two of the main factors currently used in AML patient risk stratification. However, additional criteria are required to improve the current risk classification and better adapt patient care. In neoplastic cells, ribosome biogenesis is increased to sustain the high proliferation rate and ribosome composition is altered to modulate specific gene expression driving tumorigenesis...
2017: PloS One
https://www.readbyqxmd.com/read/28103284/gene-expression-profiling-of-bronchoalveolar-lavage-cells-preceding-a-clinical-diagnosis-of-chronic-lung-allograft-dysfunction
#5
S Samuel Weigt, Xiaoyan Wang, Vyacheslav Palchevskiy, Aric L Gregson, Naman Patel, Ariss DerHovanessian, Michael Y Shino, David M Sayah, Shirin Birjandi, Joseph P Lynch, Rajan Saggar, Abbas Ardehali, David J Ross, Scott M Palmer, David Elashoff, John A Belperio
BACKGROUND: Chronic Lung Allograft Dysfunction (CLAD) is the main limitation to long-term survival after lung transplantation. Although CLAD is usually not responsive to treatment, earlier identification may improve treatment prospects. METHODS: In a nested case control study, 1-year post transplant surveillance bronchoalveolar lavage (BAL) fluid samples were obtained from incipient CLAD (n = 9) and CLAD free (n = 8) lung transplant recipients. Incipient CLAD cases were diagnosed with CLAD within 2 years, while controls were free from CLAD for at least 4 years following bronchoscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28103252/comparative-and-evolutionary-analysis-of-grass-pollen-allergens-using-brachypodium-distachyon-as-a-model-system
#6
Akanksha Sharma, Niharika Sharma, Prem Bhalla, Mohan Singh
Comparative genomics have facilitated the mining of biological information from a genome sequence, through the detection of similarities and differences with genomes of closely or more distantly related species. By using such comparative approaches, knowledge can be transferred from the model to non-model organisms and insights can be gained in the structural and evolutionary patterns of specific genes. In the absence of sequenced genomes for allergenic grasses, this study was aimed at understanding the structure, organisation and expression profiles of grass pollen allergens using the genomic data from Brachypodium distachyon as it is phylogenetically related to the allergenic grasses...
2017: PloS One
https://www.readbyqxmd.com/read/28103242/genome-wide-binding-of-posterior-hoxa-d-transcription-factors-reveals-subgrouping-and-association-with-ctcf
#7
Ivana Jerković, Daniel M Ibrahim, Guillaume Andrey, Stefan Haas, Peter Hansen, Catrin Janetzki, Irene González Navarrete, Peter N Robinson, Jochen Hecht, Stefan Mundlos
Homeotic genes code for key transcription factors (HOX-TFs) that pattern the animal body plan. During embryonic development, Hox genes are expressed in overlapping patterns and function in a partially redundant manner. In vitro biochemical screens probing the HOX-TF sequence specificity revealed largely overlapping sequence preferences, indicating that co-factors might modulate the biological function of HOX-TFs. However, due to their overlapping expression pattern, high protein homology, and insufficiently specific antibodies, little is known about their genome-wide binding preferences...
January 19, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28103132/functional-gains-in-energy-and-cell-metabolism-after-tspo-gene-insertion
#8
Guo-Jun Liu, Ryan J Middleton, Winnie Wai-Ying Kam, David Y Chin, Claire R Hatty, Ronald H Y Chan, Richard B Banati
Recent loss-of-function studies in tissue-specific as well as global Tspo (Translocator Protein 18 kDa) knockout mice have not confirmed its long assumed indispensability for the translocation of cholesterol across the mitochondrial inter-membrane space, a rate-limiting step in steroid biosynthesis. Instead, recent studies in global Tspo knockout mice indicate that TSPO may play a more fundamental role in cellular bioenergetics, which may include the indirect down-stream regulation of transport or metabolic functions...
January 19, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28103104/characterization-and-molecular-subtyping-of-shiga-toxin-producing-escherichia-coli-strains-in-butcher-shops
#9
Victoria Brusa, Magdalena Costa, Alejandra Londero, Gerardo A Leotta, Lucía Galli
Shiga toxin-producing Escherichia coli (STEC) are important emerging foodborne human pathogens. Ruminants are the main animal reservoir of STEC currently known, and meat can become contaminated at different stages of the production chain. The aim of this work was to subtype and establish the epidemiological relatedness of non-O157 STEC strains isolated from ground beef and the environment in butcher shops before (evaluation stage, 2010-2011 period) and after (verification stage, 2013) implementing improvement actions...
January 19, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28102712/bone-morphogenetic-protein-2-and-7-mediate-the-anabolic-function-of-nucleus-pulposus-cells-with-discrete-mechanisms
#10
Victor Yl Leung, Lixiong Zhou, Wai-Kit Tam, Yi Sun, Fengjuan Lv, Guangqian Zhou, Kenneth Mc Cheung
Bone morphogenetic proteins (BMPs) play roles in promoting cell anabolism, especially extracellular matrix production. The difference between BMP members in their capacity to modulate intervertebral disc cell activity is yet to be defined. BMP-7/OP-1 has been shown to retard disc degeneration. We compared the activity of BMP-7 with BMP-2 on nucleus pulposus (NP) cell phenotype and function, and investigated how they differentially affect the gene expression profiles of signaling cascade components in human NP cells under degenerative states...
January 19, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28102487/assessment-of-vascularity-in-glioblastoma-and-its-implications-on-patient-outcomes
#11
Ben G McGahan, Beth K Neilsen, David L Kelly, Rodney D McComb, S A Jaffar Kazmi, Matt L White, Yan Zhang, Michele R Aizenberg
There is little data on why glioblastomas (GBM) hemorrhage and how it may affect patient outcomes. The aim of this study was to investigate the mechanisms of hemorrhage in glioblastoma by examining molecular and genetic features by immunohistochemistry (IHC) and mRNA expression profiles in association with imaging and clinical outcomes. An observational retrospective cohort analysis was performed on 43 FFPE GBM tissue samples. MR images were assessed for the presence of hemorrhage and extent of resection. Specimens were examined for CD34 and CD105 expression using IHC...
January 19, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28102463/marked-differences-of-haplotype-tagging-snp-distribution-linkage-and-haplotype-profile-of-apoa5-gene-in-roma-population-samples
#12
Katalin Sumegi, Balazs Duga, Bela I Melegh, Zsolt Banfai, Erzsebet Kovesdi, Anita Maasz, Bela Melegh
Roma people are underprivileged, neglected population worldwide, with severe healthcare problems. They have significantly increased prevalence of cardiovascular morbidity, presumably related to their poor social status, alcohol consumption and smoking habits. Assuming that genetic background also plays a role in their susceptibility for cardiovascular diseases, we hypothesized that APOA5 gene polymorphisms, an important role-player in lipid metabolism and in the development of metabolic syndrome and cardio/cerebrovascular events, may also be involved...
January 19, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28102444/patients-with-bicuspid-and-tricuspid-aortic-valve-exhibit-distinct-regional-microrna-signatures-in-mildly-dilated-ascending-aorta
#13
Sebastian Albinsson, Alessandro Della Corte, Azra Alajbegovic, Katarzyna K Krawczyk, Ciro Bancone, Umberto Galderisi, Marilena Cipollaro, Marisa De Feo, Amalia Forte
MicroRNAs are able to modulate gene expression in a range of diseases. We focused on microRNAs as potential contributors to the pathogenesis of ascending aorta (AA) dilatation in patients with stenotic tricuspid (TAV) or bicuspid aortic valve (BAV). Aortic specimens were collected from the 'concavity' and the 'convexity' of mildly dilated AAs and of normal AAs from heart transplant donors. Aortic RNA was analyzed through PCR arrays, profiling the expression of 84 microRNAs involved in cardiovascular disease...
January 19, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28102366/aurora-kinase-a-is-a-biomarker-for-bladder-cancer-detection-and-contributes-to-its-aggressive-behavior
#14
Aaron Mobley, Shizhen Zhang, Jolanta Bondaruk, Yan Wang, Tadeusz Majewski, Nancy P Caraway, Li Huang, Einav Shoshan, Guermarie Velazquez-Torres, Giovanni Nitti, Sangkyou Lee, June Goo Lee, Enrique Fuentes-Mattei, Daniel Willis, Li Zhang, Charles C Guo, Hui Yao, Keith Baggerly, Yair Lotan, Seth P Lerner, Colin Dinney, David McConkey, Menashe Bar-Eli, Bogdan Czerniak
The effects of AURKA overexpression associated with poor clinical outcomes have been attributed to increased cell cycle progression and the development of genomic instability with aneuploidy. We used RNA interference to examine the effects of AURKA overexpression in human bladder cancer cells. Knockdown had minimal effects on cell proliferation but blocked tumor cell invasion. Whole genome mRNA expression profiling identified nicotinamide N-methyltransferase (NNMT) as a downstream target that was repressed by AURKA...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102323/bacterial-endophyte-communities-of-three-agricultural-important-grass-species-differ-in-their-response-towards-management-regimes
#15
Franziska Wemheuer, Kristin Kaiser, Petr Karlovsky, Rolf Daniel, Stefan Vidal, Bernd Wemheuer
Endophytic bacteria are critical for plant growth and health. However, compositional and functional responses of bacterial endophyte communities towards agricultural practices are still poorly understood. Hence, we analyzed the influence of fertilizer application and mowing frequency on bacterial endophytes in three agriculturally important grass species. For this purpose, we examined bacterial endophytic communities in aerial plant parts of Dactylis glomerata L., Festuca rubra L., and Lolium perenne L. by pyrotag sequencing of bacterial 16S rRNA genes over two consecutive years...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102318/transcriptional-profiling-of-olfactory-system-development-identifies-distal-antenna-as-a-regulator-of-subset-of-neuronal-fates
#16
Scott Barish, Qingyun Li, Jia W Pan, Charlie Soeder, Corbin Jones, Pelin C Volkan
Drosophila uses 50 different olfactory receptor neuron (ORN) classes that are clustered within distinct sensilla subtypes to decipher their chemical environment. Each sensilla subtype houses 1-4 ORN identities that arise through asymmetric divisions of a single sensory organ precursor (SOP). Despite a number of mutational studies investigating the regulation of ORN development, a majority of the transcriptional programs that lead to the different ORN classes in the developing olfactory system are unknown. Here we use transcriptional profiling across the time series of antennal development to identify novel transcriptional programs governing the differentiation of ORNs...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102292/integrated-molecular-analysis-reveals-complex-interactions-between-genomic-and-epigenomic-alterations-in-esophageal-adenocarcinomas
#17
DunFa Peng, Yan Guo, Heidi Chen, Shilin Zhao, Kay Washington, TianLing Hu, Yu Shyr, Wael El-Rifai
The incidence of esophageal adenocarcinoma (EAC) is rapidly rising in the United States and Western countries. In this study, we carried out an integrative molecular analysis to identify interactions between genomic and epigenomic alterations in regulating gene expression networks in EAC. We detected significant alterations in DNA copy numbers (CN), gene expression levels, and DNA methylation profiles. The integrative analysis demonstrated that altered expression of 1,755 genes was associated with changes in CN or methylation...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102045/inflammatory-profile-discriminates-clinical-subtypes-in-lrrk2-associated-parkinson-s-disease
#18
K Brockmann, C Schulte, N Schneiderhan-Marra, A Apel, C Pont-Sunyer, D Vilas, J Ruiz-Martinez, M Langkamp, J-C Corvol, F Cormier, T Knorpp, T O Joos, A Bernard, T Gasser, C Marras, B Schüle, J O Aasly, T Foroud, J F Marti-Masso, A Brice, E Tolosa, D Berg, W Maetzler
BACKGROUND AND PURPOSE: The presentation of Parkinson's disease patients with mutations in the LRRK2 gene (PDLRRK2 ) is highly variable, suggesting a strong influence of modifying factors. In this context, inflammation is a potential candidate inducing clinical subtypes. METHODS: An extensive battery of peripheral inflammatory markers was measured in human serum in a multicentre cohort of 142 PDLRRK2 patients from the MJFF LRRK2 Consortium, stratified by three different subtypes as recently proposed for idiopathic Parkinson's disease: diffuse/malignant, intermediate and mainly pure motor...
February 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28101932/amino-acid-profiling-of-zinc-resistant-prostate-cancer-cell-lines-associations-with-cancer-progression
#19
Monika Kratochvilova, Martina Raudenska, Zbynek Heger, Lukas Richtera, Natalia Cernei, Vojtech Adam, Petr Babula, Marie Novakova, Michal Masarik, Jaromir Gumulec
BACKGROUND: Failure in intracellular zinc accumulation is a key process in prostate carcinogenesis. Nevertheless, epidemiological studies of zinc administration have provided contradicting results. In order to examine the impact of the artificial intracellular increase of zinc(II) ions on prostate cancer metabolism, PNT1A, 22Rv1, and PC-3 prostatic cell lines-depicting different stages of cancer progression-and their zinc-resistant counterparts were used. To determine "benign" and "malignant" metabolic profiles, amino acid patterns, gene expression, and antioxidant capacity of these cell lines were assessed...
January 19, 2017: Prostate
https://www.readbyqxmd.com/read/28101798/mir-10b-mir-26a-mir-146a-and-mir-153-expression-in-triple-negative-vs-non-triple-negative-breast-cancer-potential-biomarkers
#20
Insaf Fkih M'hamed, Maud Privat, Mounir Trimeche, Frédérique Penault-Llorca, Yves-Jean Bignon, Abderraouf Kenani
MicroRNAs (miRNAs) are small non-coding RNAs composed of 18-25 nucleotides that can post-transcriptionally regulate gene expression and have key regulatory roles in cancer, acting as both oncogenes and tumor suppressors. About 1000 genes in humans encode miRNAs, which account for approximately 3% of the human genome, and up to 30% of human protein coding genes may be regulated by miRNAs. The objective of this article is to evaluate the expression profile of four miRNAs previously implicated in triple negative breast cancer: miR-10b, miR-26a, miR-146a and miR-153, and to determine their possible interaction in triple negative and non triple negative breast cancer based on clinical outcome and the expression of BRCA1...
January 18, 2017: Pathology Oncology Research: POR
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