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Drug delivery

 

Cell based assays workshop
Cell based assays workshop
article

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…

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

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…

RNAi_Europe
RNAi_Europe
article

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…

Table 1: Confounding effects influencing measured RNA levels
Table 1: Confounding effects influencing measured RNA levels
article

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…

article

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…

Figure 1: Classification Scheme of GPCRs. R (Rhodopsin-like), S (Secretin-like), G (Glutamate-like), Others (Adhesion, Frizzled, Taste type-2, unclassified)
Figure 1: Classification Scheme of GPCRs. R (Rhodopsin-like), S (Secretin-like), G (Glutamate-like), Others (Adhesion, Frizzled, Taste type-2, unclassified)
article

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…

FIGURE 1 Parties involved in the biomarker discovery and validation process. Medical Science is responsible for sample collection, pre-classification and storage in biobanks. Analytical Chemistry is responsible for developing sample preparation protocols and analytical platforms both for comprehensive biomarker discovery on low numbers of samples as well as for the targeted validation in large sample cohorts. Bioinformatics is responsible for performing the data pre-processing and statistical analysis as well as the validation of data and clinical information provided by the analytical and medical partners. A close collaboration and information exchange is essential for the success of biomarker research
FIGURE 1 Parties involved in the biomarker discovery and validation process. Medical Science is responsible for sample collection, pre-classification and storage in biobanks. Analytical Chemistry is responsible for developing sample preparation protocols and analytical platforms both for comprehensive biomarker discovery on low numbers of samples as well as for the targeted validation in large sample cohorts. Bioinformatics is responsible for performing the data pre-processing and statistical analysis as well as the validation of data and clinical information provided by the analytical and medical partners. A close collaboration and information exchange is essential for the success of biomarker research
article

Discovery and validation of protein biomarkers

10 July 2012 | By Péter Horvatovich & Rainer Bischoff, Analytical Biochemistry, Department of Pharmacy, University of Groningen

Biomarkers are biological characteristics that are objectively measured and evaluated as indicators of normal biological processes, pathogenic processes or pharmacological responses to a therapeutic intervention. Biomarkers can be used to determine disease onset, progression, efficacy of drug treatment, patient susceptibility to develop a certain type of disease or predict efficacy…

What is label-free screening and why use it in drug discovery?
What is label-free screening and why use it in drug discovery?
article

Ten years of siRNA – a clinical overview

10 July 2012 | By Katharina Bruno, Principal Scientist, Technical Research & Development (TRD), Novartis Pharma AG

In 2001, small interfering RNA (siRNA) was discovered as the mediator of RNA interference (RNAi), a transient and specific repression mechanism of protein expression1. After the pharmaceutical industry became aware of the intrinsic versatility and potential of this molecule, a race to develop the first siRNA based drug began. However,…

drug discovery & drug development
drug discovery & drug development
article

The need for proteomic-based biomarkers in the drug development pipeline

10 July 2012 | By Paul C. Guest, Department of Chemical Engineering and Biotechnology, University of Cambridge and Sabine Bahn Department of Chemical Engineering and Biotechnology, University of Cambridge & Department of Neuroscience, Erasmus Medical Centre

Pharmaceutical companies are under increasing pressure to improve their efficiency and returns on drug discovery projects. This is a daunting task considering that the average drug costs approximately one billion US dollars to develop and takes around 12 years from initial discovery to reach the market1. In addition, approximately 70…