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Applications of Inside-Out Vesicle Uptake Assay to Assess the Inhibitory Effects of Various Drugs on Human MRP2 and Rat Mrp2 Transporters
Vina Ketty, Eric Sands, Joanne Bourgea, Chris J. Patten, Charles L. Crespi, Ph.D., and Guangqing Xiao

Human MRP2 and rat Mrp2 inside-out vesicles were prepared from Spodoptera frugiperda (Sf9) insect cells expressing the corresponding transporters. MRP2 mediated and ATP dependent uptake of 3H-LTC4 was conducted using the rapid filtration system in the absence or presence of MgATP.

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Development of a High-Throughput Microarray for Evaluating CYP1A1 Induction
Megan Mason, XinXin Ding, Jonathan S. Dordick

The aim of this study is to produce a vector capable of expressing green fluorescent protein (GFP) when exposed to a CYP1A1 inducer.

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A Walk-Up ADME Testing System for Medicinal Chemists and Pharmacologists
Muhammad Alimuddina, Martin Peacock, Russell Dahl, Omar Jina, and Paul Oakley

VivADME was born with the fusion of a problem and a solution: recognition by a Medicinal Chemist that ADME data took too long to obtain, and, the realization that microfluidic tools could address the problem. The vivADME microfluidics solution means that ADME profiling can be performed in minutes with microgram-scale samples in a walk-up system with a very low cost per sample.

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Functional Evaluation of SLC Transporters in BD Gentest™ Cryopreserved Human Hepatocytes Using an Oil-Filtration Suspension Assay
1Eric Sands, 1Vina Ketty, 2Yong-Hae-Han, 1Joanne Bourgea, 1Chris J. Patten, 1Charles L. Crespi, and 1Guangqing Xiao

The purpose of this study was to evaluate the function of Sodium Taurocholate Co-transporting Polypeptide (NTCP), Organic Anion Transporting Polypeptide (OATP), and Organic Cation Transporter (OCT) in cryopreserved human hepatocytes, and to examine the impact of various drugs on hepatic transporter-mediated uptake. Cryopreserved human hepatocytes were prepared using the Percoll™ method.

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Bioluminescent Approaches for In Vitro ADMET
James J Cali, Mary Sobol, Dongping Ma, Michael Valley

Bioluminescent ADMET assays couple targets of interest to the photon emitting reaction of firefly luciferase. Multiplexed cell-based assays measure compound cytotoxicity and induction of P450 transcription and enzyme activity. Cell-free membrane assays measure P450 or monoamine oxidase enzyme activities and their inhibition by test compounds.

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Initiatives For The Sharing Of Toxicity Data
Katharine Briggs

Much high-quality toxicity information is held within organisations rather than being in the public domain. Organisations would benefit from sharing this data with each other in a reciprocal manner where commercial sensitivity issues allow.

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MS-Xelerator™: Advanced Algorithms for LC/MS Data Processing Applied to Biomarker Discovery, Differential Analysis and Quantitative Proteomics
M.M.A. Ruijken

LC-MS based proteomic experiments are used to compare complex biological samples across multiple conditions. Fast, powerful computational tools are needed to explore and detect differences in the areas of Expression Proteomics and Biomarker Discovery. In general, specialized steps are necessary to solve these difficult problems (binning, alignment & normalization, peak picking, relative quantitation, etc.). MS-Xelerator is a collection of software tools dedicated to all of the above tasks.

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A Robust High Throughput Physicochemical Screen for Phospholipidosis
Pavol Vitovic, Juha-Matti Alakoskela and Paavo K.J. Kinnunen

The poster presents a simple HT physicochemical screen, predicting PLD in real-time by surface activity profiling (using Kibron Delta-8 analyzer). The results are equal or better than derived from a cell based assay, throughput is up 450 compounds/24 hrs and drug consumption < 1 mg/compound.

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Promega’s Multiplexed Cell Viability and Apoptosis Assays Performed on the PHERAstar
Tracy Worzella and Brad Larson

Today’s high-throughput screening facilities face increasing demands to generate more information from their existing compound libraries. In this poster, we demonstrate the combination of several Promega cell-based assays (CellTiter-Blue®, Apo-One® and Caspase-Glo® 3/7) multiplexed in both low-volume 384 and 1536-well plate formats. The BMG LABTECH PHERAstar microplate reader is used to record both luminescence and fluorescence, depending on the multiplex combination.

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Showing Results 61 - 70 of 108
Scientific News
ADME of Antibody-Maytansinoid Conjugates
Continued understanding of the ADME properties of ADCs entering clinical evaluations should provide additional insight into attributes that may be necessary for clinical success.
Epigenetic Regulation of ADME-Related Genes
The promise of epigenetic research is its potential to identify additional sources of inter individual variability in drug disposition and response.
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.
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