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Wednesday, August 20, 2014
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Computational analysis of high-throughputsmall RNA sequencing reveals microRNAs in a single-celled organism
Schwach F, Studholme DJ, Molnar A, Thuenemann E, Burrell M, Perez-Martinez A, Moulton V and Baulcombe D

We present evidence that miRNA precursors are present in the single-celled green alga Chlamydomonas reinhardtii and that they give rise to mature miRNAs that regulate target genes by post-transcriptional RNA cleavage.

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Specific Ligand-Based Depletion of Human Albumin and IgG in the Presence of Denaturants
Todd Sanderson, Hongshan Li, Brian Miller, Laura Alionte, and Lisa Bradbury

Poster data highlights the advantages of a ligand-based depletion method that functions in the presence of urea and is highly specific, disposable, cost effective, and flexible.

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A New Disposable, Specific Ligand-Based Method for Depletion of Albumin and IgG From Serum and Plasma
Laura Alionte, Allison Miller, Cal Messing, Tao Hu, and Lisa Bradbury

Poster shows the advantages of a ligand-based depletion method that is highly specific, disposable, cost effective, and flexible. Pall’s Enchant Multi-Protein Affinity Separation Kit is a strong addition to the product choices for scientists engaged in biomarker discovery and proteomics research.

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Expression of stress response protein GRP78 is associated with the development of castration-resistant prostate cancer
Llana Pootrakul, Anirban P. Mitra, Ram H. Datar, Shan-Rong Shi, Jie Cai, Debra Hawes, Susan G. Groshen, Amy S. Lee, Richard J. Cote

This study investigated the role of the GRP78 in prostate cancer progression and the development of castration-resistant prostate cancer, where cancer cells continue to survive despite the stress of an androgen-starved environment.

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Application of genetic programming in analysis of quantitative gene expression profiles for identification of nodal status in bladder cancer
Anirban P. Mitra, Arpit A. Almal, Ben George, David W. Fry, Peter F. Lenehan, Vincenzo Pagliarulo, Richard J. Cote, Ram H. Datar, William P. Worzel

Nodal involvement in bladder cancer is an independent indicator of prognosis. This study employed an iterative machine learning process called genetic programming on quantitative expression values of 70 genes to classify primary urothelial carcinoma samples into those associated with or without nodal metastasis. The generated rules showed a strong predilection for ICAM1, MAP2K6 and KDR resulting in gene expression motifs that cumulatively suggested a pattern ICAM1>MAP2K6>KDR for node positive ca

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How to Perform High Throughput siRNA Transfection
Mark Hewitson, Hanno Hermann and Neil Benn

We demonstrate the optimization of siRNA transfection process for time and costs in a high throughput application with two independent measurements of the RNAi effect: The visual monitoring of Eg5 expression and the quantitative PCR measurement of GAPDH mRNA after transfection of Hela cells. The results show, that 1 wash cycle is sufficient for the removal of any remnants of the transfection complex from disposable tips, making the tips re-usable.

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New Protein Biomarkers for Histopathological Classification of Breast Cancer
Brozkova Kristyna, Knoflickova Dana, Bouchal Pavel, Nenutil Rudolf and Vojtesek Borivoj

We used Ciphergen technology based on SELDI TOF-MS (Surface Enhanced Laser Desorption/Ionisation Time-of-Flight Mass Spectrometry) for analysis of protein expression profiles of 105 breast cancer tissue samples. The aim of this study was the identification of single proteins or protein patterns specific for different tumour subgroups, which should take advantage of the biomarker as an alternative to commonly used diagnostic and prognostic characteristics.

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Development of an Automated siRNA Screening of Host Macrophages Genes Involved in Mycobacterium Tuberculosis Infection
Jean-Philippe Carralot, Chang-Bok Lee, Annette Boese, Boris Lenseigne, Auguste Genovesio, Peter Sommer, Thierry Christophe and Priscille Brodin

In order to identify host genes required for M. tuberculosis infection and persistence, we developed a phenotypic cell-based assay in both murine and human cells and adapted it for high throughput and high content screening purposes. Knock-down efficiencies above 80% were achieved in “hard-to-Transfect” macrophage cells. Validation of the assay performed with control siRNAs will be discussed.

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Quantification of siRNA by a Novel Competitive-qPCR Method
Wei-li, Liu., Mark Stevenson and Len Seymour

We have developed a competitive qPCR method in which siRNA competes with a homologous forward primer to bind template DNA, giving siRNA concentration dependent inhibition. The addition of E6-siRNA to cqPCR led to inhibition of amplification in a linear concentration-dependent manner, with as little as 200pg of siRNA capable of being detected. Irrelevant siRNA had no effect on amplification confirming specificity

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Showing Results 91 - 100 of 141
Scientific News
Computer Model Reveals Cancer's Energy Source
Findings focused on the energy-making process in cancer cells known as the Warburg Effect.
Immune Cells get Cancer-Fighting Boost From Nanomaterials
Yale researchers used bundled carbon nanotubes to incubate cytotoxic T cells.
New Ways to Treat Solid Tumours
An international team of scientists has shown that an antibody against the protein EphA3, found in the micro-environment of solid cancers, has anti-tumour effects.
Gene Likely to Promote Childhood Cancers Pinpointed
CRI Researchers have identified a gene that contributes to the development of several childhood cancers, in a study conducted with mice designed to model the cancers.
New Analysis Reveals Tumor Weaknesses
Identifying epigenetic markers in cancer cells could improve patient treatment.
CRI Scientists Pinpoint Gene Likely to Promote Childhood Cancers
The study was published in the journal Cancer Cell.
A New Way to Model Cancer
New gene-editing technique allows scientists to more rapidly study the role of mutations in tumor development.
Double Act: How a Single Molecule Can Attract and Repel Growing Brain Connections
The 3D structure of Netrin-1 bound to DCC shows Netrin-1 binds to two DCC molecules in different ways.
Single-Cell Analysis Holds Promise for Stem Cell and Cancer Research
UCSF researchers use microfluidic technology to probe human brain development.
GTEx Project to Expand Functional Studies of Genomic Variation
Larger set of human tissues to be analyzed to contribute to a database and tissue bank that researchers can use to study how genomic variants influence gene activity.
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