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- Landegren, Ulf, et al.
(författare)
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Molecular tools for a molecular medicine : analyzing genes, transcripts and proteins using padlock and proximity probes
- 2004
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Ingår i: Journal of Molecular Recognition. - : Wiley. - 0952-3499 .- 1099-1352. ; 17:3, s. 194-7
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Tidskriftsartikel (refereegranskat)abstract
- Procedures and reagents are needed to specifically detect all the macromolecules that are being identified in the course of genome projects. We discuss how this challenge may be met using a set of ligation-based reagents termed padlock probes and proximity ligation probes. These probes include elements with affinity for specific nucleic acid and protein molecules, respectively, along with unique identifier DNA sequence elements that encode the identity of the recognized target molecules. The information content of DNA strands that form in the detection reactions are recorded after amplification, allowing the recognized target molecules to be identified. The procedures permit highly specific solution-phase or localized analyses of large sets of target molecules as required in future molecular analyses.
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- Landegren, Ulf, et al.
(författare)
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Padlock and proximity probes for in situ and array-based analyses : tools for the post genomic era
- 2003
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Ingår i: Comparative and functional genomics. - : Hindawi Limited. - 1531-6912 .- 1532-6268. ; 4:5, s. 525-30
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Tidskriftsartikel (refereegranskat)abstract
- Highly specific high-throughput assays will be required to take full advantage of the accumulating information about the macromolecular composition of cells and tissues, in order to characterize biological systems in health and disease. We discuss the general problem of detection specificity and present the approach our group has taken, involving the reformatting of analogue biological information to digital reporter segments of genetic information via a series of DNA ligation assays. The assays enable extensive, coordinated analyses of the numbers and locations of genes, transcripts and protein.
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- McGinn, Steven, et al.
(författare)
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New Technologies for DNA analysis-A review of the READNA Project.
- 2016
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Ingår i: New Biotechnology. - : Elsevier BV. - 1876-4347 .- 1871-6784.
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Forskningsöversikt (refereegranskat)abstract
- The REvolutionary Approaches and Devices for Nucleic Acid analysis (READNA) project received funding from the European Commission for 4 1/2 years. The objectives of the project revolved around technological developments in nucleic acid analysis. The project partners have discovered, created and developed a huge body of insights into nucleic acid analysis, ranging from improvements and implementation of current technologies to the most promising sequencing technologies that constitute a 3(rd) and 4(th) generation of sequencing methods with nanopores and in situ sequencing, respectively.
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- Nilsson, Mats, et al.
(författare)
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Real-time monitoring of rolling-circle amplification using a modified molecular beacon design
- 2002
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Ingår i: Nucleic Acids Research. - : Oxford University Press (OUP). - 0305-1048 .- 1362-4962. ; 30:14, s. e66-
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Tidskriftsartikel (refereegranskat)abstract
- We describe a method to monitor rolling-circle replication of circular oligonucleotides in dual-color and in real-time using molecular beacons. The method can be used to study the kinetics of the polymerization reaction and to amplify and quantify circularized oligonucleotide probes in a rolling-circle amplification (RCA) reaction. Modified molecular beacons were made of 2'-O-Me-RNA to prevent 3' exonucleolytic degradation by the polymerase used. Moreover, the complement of one of the stem sequences of the molecular beacon was included in the RCA products to avoid fluorescence quenching due to inter-molecular hybridization of neighboring molecular beacons hybridizing to the concatemeric polymerization product. The method allows highly accurate quantification of circularized DNA over a broad concentration range by relating the signal from the test DNA circle to an internal reference DNA circle reporting in a distinct fluorescence color.
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- Zieba, Agata, et al.
(författare)
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Molecular tools for companion diagnostics
- 2012
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Ingår i: New Biotechnology. - : Elsevier BV. - 1871-6784 .- 1876-4347. ; 29:6, s. 634-640
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Forskningsöversikt (refereegranskat)abstract
- The heterogeneous nature of cancer results in highly variable therapeutic responses even among patients with identical stages and grades of a malignancy. The move towards personalised medicine in cancer therapy has therefore been motivated by a need to customise therapy according to molecular features of individual tumours. Companion diagnostics serves to support early drug development, it can provide surrogate markers in clinical trials, and also guide selection of individual therapies and monitoring of responses in routine clinical care. The era of companion diagnostics can be said to have begun with the introduction of the HercepTest - a first-of-a-kind diagnostic tool developed by DakoCytomation in 1998 to select patients for therapy with the anticancer drug Herceptin (trastuzumab). Herceptin and the paired test proved that companion diagnostics can help guide patient-tailored therapies. We will discuss herein technologies to analyse companion diagnostics markers at the level of DNA, RNA or protein, focusing on a series of methods developed in our laboratory that can facilitate drug development and help stratify patients for therapy.
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