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Stephanie Bougel wins Poster Award at the European Biomarkers Summit 2010

Stephanie Bougel, from the University of Lausanne, France, won the award for best poster at the European Biomarkers Summit and Exhibtion held in Florence, Italy on the 9th - 10th November 2010.

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hTERT methylation: a potential cancer biomarker for metastasis detection in body fluids

Aim of the study: 1. To develop a specific, sensitive, quantitative, and fast method for detection of hTERT methylation 2. To explore its use as a cancer biomarker in the diagnosis of metastatic tumors in CSF.

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Hepatitis B virus (HBV) and Human immunodeficiency virus (HIV) antibodies detected by peptide microarrays
ahmed Abd El Wahed1, Ulrike Beutling2, Ronald Frank2, Gerhard Hunsmann1, and Hans-Joachim Fritz3

HBV and HIVenv chips with overlapping oligopeptides encompassing the full amino acid sequences of HBV and HIV polypeptides were produced. In addition, a chip displaying a library of random 4608 different 15-mers peptides (4608-RPL) was prepared. Both chips were used for analyzing monoclonal antibodies and sera from HIV- and HBV-infected individuals. 4608-RPL could be used for identifying target sequences of antibodies without prior knowledge of the corresponding immunizing antigen.

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An improved data processing pipe-line for comprehensive H-NMR and X/MS -omics data
R. J. O. Torgrip, K. M. Åberg, E. Alm

In the post acqusition analysis of comprehensive -omics data the pre-processing pipe-line is crucial to extract the maximum possible amount of information from the data. Here we show a processing pipe-line for (1D)H-NMR and (2D)X/MS data comprising; feature detection, inter-sample feature alignment and internal-standard free normalization that outperforms today’s state-of-the-art processing schemes.

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Alignment of 1H-NMR data using a Generalized Fuzzy Hough Transform
Erik Alm, Leonard Csenki, Ralf J.O. Torgrip, K. Magnus Åberg, Lars I. Nord, Ina Schuppe-Koistinen and Johan Lindberg

In metabolic profiling, multivariate data analysis techniques are used to interpret 1D 1H–NMR data. Multivariate data analysis techniques require that peaks are located in the same variables in every spectrum – this requirement is not met in native NMR spectra. Current state-of-the-art alignment algorithms are unable to align peaks when the spatial order of the peaks changes. We present the Fuzzy Generalized Hough Transform alignment which solves the alignment problem.

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Specificity of small molecule inhibitors for deubiquitinating enzymes in living cells assessed by activity-based proteomics
*Mikael Altun, *Holger B. Kramer, *Lianne Willems, *Mukram Mackeen, *Edward Kogan, *Rebecca Konietzny, *Cynthia Wright, *Roman Fischer, #Benjamin Nicholson, *Benedikt M. Kessler

Small molecular compounds (PR-619 and P22077) was assessed for their abilities to inhibit DUB function in crude extracts and in cells. Activity-based profiling combined with quantitative mass spectrometry revealed the inhibitory capacity of a broad range of DUBs by the PR-619, whereas P22077 showed specificity towards subsets of DUBs including USP7 in cells. Our results demonstrate the usefulness of activity-based quantitative proteomics to monitor inhibition of endogenous DUBs in vivo.

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Capture Compounds towards a targeted reduction of proteome complexity
Erik Duelsner, Aysel Alici, Christian Jurinke, Hubert Koester

Capture Compound Mass Spectrometry (CCMS) enables the enrichment of proteins based on their functionality. CCMS is commercialized as kits for research applications and in collaborations with pharmaceutical companies. The focus is on investigating mechanisms of drug action and avoidance of toxic effects of small molecule drugs.

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Quantitative phosphoproteome analysis for the detection of early alterations of signal transduction by dioxin (TCDD)
Melanie Schulz, Ulrich Andrae, Martin R. Larsen

2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is an extremely toxic pollutant and regarded the most potent chemical carcinogen in experimental animals. Most of its biological effects are mediated by binding of TCDD to the cytosolic Ah receptor (AHR). In addition, TCDD cause AHR-dependent alterations in signal transduction that are independent of changes in gene expression. In this study, we have therefore conducted a quantitative phospho proteomic study on TCDD-induced alterations.

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Sialylation and Metastasis: from tumor-associated antigens discovery to therapeutic development
Giuseppe Palmisano, Rikke Leth-Larsen and Martin R. Larsen

Aberrant sialylation affects the metastatic behaviour of cancer cells.We have quantified the sialylated cell surface glycoproteins from cells with different metastatic behaviour.The membrane proteins from isogenic human cell lines were analyzed by a method based on TiO2-HILIC-MS.1200 sialylated glycosites, 116 enzymes involved in the glycoconjugate metabolism and for the first time 4 glycosylation sites of Her2 receptor were identified, showing the importance of this tool for discovery and thera

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Showing Results 51 - 60 of 143
Scientific News
UK Government Must Do More to Reduce Risk of vCJD Infection
Report recommends that UK Government commission a full assessment of the risks currently faced by the UK blood supply.
Capturing Cancer: A Powerful New Technique for Early Diagnosis
Researchers describe an innovative technique for early disease detection, which they call immunosignaturing.
Significant Step Towards Blood Test for Alzheimer's
Scientists have identified a set of 10 proteins in the blood which can predict the onset of Alzheimer’s, marking a significant step towards developing a blood test for the disease.
Researchers Identify Urgent Need for Alzheimer's Disease Drug Development
Analysis of clinical trials published in the journal Alzheimer's Research & Therapy shows that the pipeline for potential treatments of AD is small and rate of success is limited.
New Tool to Study Critical Protein Interaction in Cancer Research
A*STAR scientists used fluorescent molecular rotors to study protein-protein interactions involving p53 and MDM2 in cells.
Researchers Discover ‘Trojan Horse’ Method
Scientists found a way to deliver proteins into live human cells without harm.
Missing Protein Explains Link Between Obesity and Diabetes
A*STAR scientists pioneered a molecular connection between the two health conditions.
Potential Alzheimer’s Drug Prevents Abnormal Blood Clots in the Brain
Researchers have identified a compound that might halt the progression of Alzheimer’s by interfering with the role of plaque forming amyloid-ß.
CRI Finds Key to Identifying, Enriching Mesenchymal Stem Cells
Biomarker enables researchers to accurately characterize the properties and function of MSCs in the body.
Biologists Find ‘Missing Link’ in the Production of Protein Factories in Cells
Biologists at UC San Diego have found the “missing link” in the chemical system that enables animal cells to produce ribosomes.
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