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Combination of in Vitro Caco-2 and Aqueous Solubility Screens with in Silico Physiological Modelling for the Prediction of Human Intestinal Absorption in Early Drug Discovery
S. Thomas, F.A. Brightman, H.J. Gill, B. Pufong and D.L. Cheney

With the increasing application of high-throughput assays for the determination of the in vitro ADME properties of compounds in lead identification and optimization, there is a growing need for efficient and cost-effective methods for interpreting theresulting data to enable well-informed selection to be made for compound progression.

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Applications of Laser Scanning Microplate Cytometry in High Content Screening
Paul Wylie, Christopher Lupton, Tristan Cope and Wayne Bowen

Traditional methods for High Content Analysis (HCA) use technologies such as flow cytometry and microscope-based imaging systems. Laser-scanning microplate cytometry has many advantages over these, and is more amenable for use in High Content Screening (HCS).

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Label-free Profiling of Ligands for Endogenous GPCRs Using a Cell-Based High Throughput Screening Technology
Ye Fang, Gary Li, and Ann M. Ferrie

The activation of GPCRs is known to lead to the dynamic translocation of multiple signaling molecules or molecular assemblies during its signaling cycle, and in many cases cytoskelatal reorganization. Such a movement and/or reorganization results in dynamic redistribution of cellular contents, equivalent to dynamic mass redistribution (DMR), which can be monitored online in living cells using Corning® Epic™ system – a label-free and non-invasive biosensor system.

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Utility of 405nm-Excitable Dyes in High Content Screening Using an Acumen Explorer Microplate Cytometer
Sarah Payne, Tristan Cope, Christopher Lupton, Jeffrey T. Hung and Paul Wylie

In this study, we have used an Acumen Explorer equipped with a violet 405nm laser in conjunction with a selection of shorter-wavelength amine-reactive fluorophores (Invitrogen, Molecular Probes) to demonstrate a greater utility for blue fluorescent probes within high content assays.

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TDS LIMS: A Platform for Comprehensive Management and Analysis of Screening Data
Karol Kozak, Marta Kozak, Jan Wagner, Hannes Grabner, Kerstin Korn, Eugenio Fava, Marit Biesold, Claudia Moebius, Anett Lohman and Ebrhard Krausz

Here we present a web-based bioinformatics solution for the management and analysis of all areas of cell-based screen experimentation: the Laboratory Information Management System of the Technology Development Studio (TDS-LIMS). TDS-LIMS is a software package consisting of the Library Checker, Library Browser, Scheduling Kit, Screen Browser and Screen Publisher.

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A High Content Primary Screening Assay Determining ERK and JNK Activation
Paul Wylie and Wayne Bowen

Here we present a rapid method for determining ERK and JNK activation, demonstrated using time course, concentration-dependence data and the effect of the MEK1/2 inhibitor UO126 on ERK activation obtained using the Acumen Explorer™ laser scanning cytometer analysing 384 well plates.

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Cell Cycle Analysis Using Microplate Cytometry: A Comparison of Laser and Dye Combinations
Tristan Cope, Christopher Lupton, Paul Wylie, Jeff Hung and Wayne Bowen

For improved screening capability, we have developed a cell cycle analysis method using an Acumen Explorer fluorescence microplate cytometer, capable of reading an entire 384 well microplate in about 10 minutes. The method can perform such analyses on fixed cells in situ, markedly simplifying sample preparation.

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Determination of Cell Colony Formation in a High Content Screening Assay
David Pole and Wayne Bowen

Here, laser scanning microplate cytometry has been used to provide an automated high content readout of the effects of cytostatic agents on colony formation. This approach determines colony number through the application of a spherical volume algorithm. This permits the differentiation of cytostatic effects where the number of colonies and size remains constant and cytotoxic effects where the size and number may be reduced.

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Automated Nanolitre Hit Automated Nanolitre Hit - Picking using a Mosquito® X1 Low Volume Pipettor
Joby Jenkins, Rob Lewis, Tristan Cope, Wayne Bowen

The mosquito® X1 offers precision sampling of any individual well in 48-, 96-, 384- or 1536-well plates. This enables researchers to quickly select small volumes of “hits” from primary screening plates and transfer them directly to the next screening stage without further dilution. mosquito® X1's disposable pipette tips guarantee zero cross-contamination.

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Showing Results 91 - 100 of 108
Scientific News
NIST Instrument Enables High-speed Chemical Imaging of Tissues
Researchers have demonstrated a dramatically improved technique for analyzing biological cells and tissues based on characteristic molecular vibration "signatures."
Finding Could Revolutionize Drug Discovery
A study by researchers at IRB Barcelona reveals the existence of information highways that connect and correlate distant sites within a single protein.
Researchers Develop ‘Onion’ Vesicles for Drug Delivery
University of Pennsylvania researchers have shown that dendrimer-based vesicles self-assemble with concentric layers of membranes, much like an onion.
Validation of Drug Toxicity Prediction using DiscoveRx Model
BioMAP® Systems was shown to identify important safety aspects of drugs and chemicals more efficiently and accurately than can be achieved by animal testing.
System 'Prints' Precise, Tailored Drug Dosages
The new approach uses a combination of data and mathematics to determine the precise dosage.
Mice and Rats Stressed by Male Experimenters
An international team of pain researchers led by scientists at McGill University have found that the gender of the experimenters has a big impact on the stress levels of rodents.
Skin Layer Grown in Lab Could Replace Animal Testing
Skin layer grown from human stem cells could replace animals in drug and cosmetics testing.
Observing Behavior of Single Molecules in Real Time
New technique developed by Stanford scientists allows observation of single molecules of protein or DNA as they bind with other molecules.
Development and Validation of LC/MS/MS Method and its Application to a Pharmacokinetic Study
Researchers aimed to develop a LC/MS/MS method to monitor plasma levels of montelukast, gliclazide, and nifedipine for application in pharmacokinetic studies and routine clinical practice.
Mini-Livers Show Promise to Reduce Animal Use in Science
Using this method, cells from one mouse could be used to test 1000 drug compounds to treat liver disease, and reduce animal use by up to 50,000.
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