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Drug delivery

 

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Biomarkers for cancer treatment

22 October 2013 | By Amancio Carnero, Instituto de Biomedicina de Sevilla, Consejo Superior de Investigaciones Científicas

There is an urgent need to predict which treatment will report the most benefit to a patient with cancer. To that end, scientists are exploring any possible biomolecule in the organism that can mark each individual for its adequate treatment. If achieved, it will open a personalised medicine era.

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Cell-based assays for protein-protein interactions

22 October 2013 | By Mark Wade, Center for Genomic Science of IIT@SEMM

Protein-protein interactions (PPI) form the backbone of all cellular signalling networks, and aberrant PPI contribute to the pathology of several diseases. Thus, strategies to identify PPI modulators are expected to be therapeutically beneficial. However, there are very few examples of clinically approved PPI modulators, reflecting the difficulties of identifying effective…

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GPCRs: Cell based label-free assays in GPCR drug discovery

20 August 2013 | By Niklas Larsson, Linda Sundström, Erik Ryberg and Lovisa Frostne (AstraZeneca)

G protein-coupled receptors are one of the major classes of therapeutic targets for a broad range of diseases. The most commonly used assays in GPCR drug discovery measure production of second messengers such as cAMP or IP3 that are the result of activation of individual signalling pathways. Such specific assays…

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Label-free quantitative proteomics: Why has it taken so long to become a mainstream approach?

13 June 2013 | By Thierry Le Bihan, SynthSys and Institute of Structural and Molecular Biology, University of Edinburgh

In recent years, mass spectrometry (MS) based proteomics has moved from being a qualitative tool (used to mainly identify proteins) to a more reliable analysis tool, allowing relative quantitation as well as absolute quantitation of a large number of proteins. However, the developed quantitative methods are either specific for certain…

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Putting the ‘fun’ into functional genomics: a review of RNAi genomewide cellular screens

18 December 2012 | By Dr. Stephen Brown, Sheffield RNAi Screening Facility, Biomedical Sciences, University of Sheffield

As RNA interference (RNAi) enters its teenage years from the first critical observations, it has now reached a multi-billion pound industry. There are few research areas that have expanded as quickly and spectacularly as the field of RNAi. The potential of RNAi initially sparked a functional genomics gold rush. Different…

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RNA quality matters

18 December 2012 | By Mikael Kubista, Jens Björkman, David Svec and Robert Sjöback, TATAA Biocenter

RNA levels can be measured with very high specificity, sensitivity and accuracy with techniques such as real-time quantitative PCR (qPCR), microarray analysis and next generation sequencing. This makes messenger (m) RNAs and potentially microRNAs and other non-coding RNAs popular as biomarkers. But RNA is less stable and more dynamic than…

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Applications of MRI to controlled drug delivery devices

22 October 2012 | By Mick Mantle, Department of Chemical Engineering & Biotechnology, University of Cambridge

Magnetic resonance imaging (MRI) is a technique that is traditionally used as a diagnostic clinical imaging tool. However, there are now an increasing number of non-medial applications where MRI has seen unrivalled success. One of those areas is in its application to pharmaceutical research. The aim of this article is…

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G protein coupled receptors – exploiting flexible conformations

3 September 2012 | By Kathryn L. Chapman, Imperial Drug Discovery Centre, Imperial College London and John B.C. Findlay & Gemma K. Kinsella, Department of Biology, National University of Ireland Maynooth

G-protein coupled receptors (GPCRs) are a diverse super-family of proteins located within the plasma membrane of eukaryotic cells which have a common architecture consisting of seven-transmembrane (7-TM) segments, connected by extracellular (ECL) and intracellular (ICL) loops. They differ from other 7-TM proteins in their ability to activate guanine-nucleotide binding proteins…