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Roche´s GS Junior Sequencing System Used in Research on Personalized Tumor Treatment

17 Jan 2012

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The Center for Human Genetics and Laboratory Medicine Dr. Klein and Dr. Rost, and IMGM Laboratories, both located in Martinsried Germany, reported using the Roche GS Junior Benchtop System to sequence clinically relevant exons and identify genomic variations in solid tumors treated with an antibody-based medicine. This sequencing approach, easily expanded to complete coding regions, has great potential for personalized medicine, where individual treatment success is largely dependent on the mutation status of tumor genes. The high-quality long reads produced by the GS Junior System enable accurate and comprehensive analysis of the full range of genetic variations.

Personalized tumor treatments, such as monoclonal antibodies (mAb) that specifically target tumor-inducing proteins, require a precise and comprehensive assessment of an individual’s genetic profile for the targeted genes. Current therapies target only a limited region of the relevant tumor genes, whereas the next-generation GS Junior Sequencing System enables cost effective and comprehensive profiling of all the relevant genes. In contrast, conventional capillary sequencing techniques often lack the sensitivity and cost effectiveness to detect tumor mutations occurring at less than 20% frequency.

“The future of personalized tumor treatment lies in this sequencing approach,” said Dr. Hanns-Georg Klein, MD, CEO of both IMGM and the Center for Human Genetics. “Through our research, we’ve found that it’s critical to ensure a comprehensive analysis of a tumor variant population, including known and novel mutations.”

These findings underscore the utility of Roche’s GS Junior System for investigating complex tumor samples. The long, accurate sequencing reads are ideal for identifying multiple tumor mutations that can include structural variations and rare somatic mutations.

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GS Junior System

The power of next-gen sequencing in your hands. The GS Junior System brings the power of 454 Sequencing Systems directly to the laboratory benchtop. Get comprehensive genome coverage with long 400 bp sequencing reads and quickly proceed from DNA to discovery with fast sequencing runs and straightforward data analysis on the attendant computer.GS Junior System Features: Powered by proven technology: Uses GS Junior Titanium chemistry to deliver high-quality, bioinformatics-friendly, long read data Fits in your lab: Small instrument size, along with low entry and operating costs, enables labs with limited budget and infrastructure to take advantage of next gen sequencing Easy to use: Manageable data size allows processing and analysis right on the attendant computer without the need for specialized computing or network infrastructures Point-and-click data analysis: Includes the GS Data Analysis Software for de novo assembly, reference mapping and amplicon variant analysis Applications: Amplicon Sequencing: Targeted sequencing of 10's - 100's of samples and loci Sequence Capture: Targeted sequencing of custom array regions Whole Genome Sequencing: De novo sequencing and resequencing of microbial organisms (bacteria, fungi, viruses) Metagenomics: Characterization of complex environmental samples; pathogen discovery Transcriptome Sequencing: Full-length sequencing and de novo assembly of transcripts

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Gas ChromatographyGas chromatography (GC) is an analytical technique used to separate and quantitate mixtures of small and volatile compounds. Gas chromatographs or GC systems include components such as GC columns, detectors, pumps and autosamplers. Choose from packed or capillary GC columns, flame ionization (FID), photoionization (PID) electron capture detectors and selective or non-selective detectors. Find the best gas chromatographs in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.AntibodiesAntibodies are used in techniques such as confocal and fluorescence microscopy, flow cytometry, ELISA, ELISPOT, immunohistochemistry, western blotting and immunopreciptation. Select specific antigen reactivity, high specific affinity, low non-specific binding, monoclonal or polyclonal, primary or secondary antibodies and associated conjugates such as an enzyme or dye for visualization.Genome AnalysisGenomics, the study of genomes, includes functional genomics, evolutionary genomics and comparative genomics. There are many genomic technologies such as DNA sequencing of whole genomes, computational biology and bioinformatics. DNA and nucleic acids must be isolated and concentrated from cells for analysis with kits, automated analyzers and software. Other useful technologies for studying genomics include PCR, microarrays and electrophoresis.Cell-Based AssaysCell-based assays are used to monitor the presence, quantity and activities of a desired cellular analyte including drug molecules or biomarkers. This can reveal information on cell health (apoptosis, cytotoxicity, viability and proliferation assays), cell metabolism, cell migration and cell signaling mechanisms. Find the best cell-based assay products, kits and equipment with our peer reviewed product directory: compare products, check customer reviews and receiving pricing direct from manufacturers.Clinical GeneticsMolecular Genetics covers the analysis of hereditary genetic disease and chromosomal abnormalities. Genetics can be analysed using DNA, RNA, and protein microarrays, PCR, RT PCR and DNA sequencing. Genetic equipment includes genetic workstations, thermal cyclers, cooling blocks and electrophoresis products. Diagnostic kits are used for DNA / RNA extraction and purification.Next Generation SequencingNext-generation sequencing (NGS), also known as whole-genome sequencing, high-throughput sequencing and massive parallel sequencing, produces and analyses thousands to millions of nucleotide sequences at once. Sequencing systems operate via varying technologies depending on the manufacturer, including sequencing by synthesis, ligation, pyrosequencing, ion semiconductor and single-molecule real-time sequencing. For NGS, library preparation is paramount to successful sequencing. In this section, explore a range of library preparation kits, from targeted, amplicon-based or hybridization-based kits including epigenomic, transcriptomic and genomic workflows to fragmentation kits. Find the best next-generation sequencing products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.TumorsTumor research focuses on understanding abnormal cell growth that leads to cancer. Identifying biomarkers, studying tumor microenvironments, and developing targeted therapies are critical for advancing cancer treatment. Early detection and personalized treatment options are key to improving outcomes for patients. Browse our peer-reviewed product directory to explore tools for tumor research, diagnostics, and cancer therapies; compare products, read customer reviews, and get pricing directly from manufacturers.Monoclonal AntibodiesMonoclonal antibodies (mAbs) are lab-made molecules that can bind to specific antigens on cells, making them highly effective in treating cancers, autoimmune diseases, and infections. These targeted therapies are transforming the treatment landscape for many conditions. Browse our peer-reviewed product directory to find monoclonal antibodies for research and clinical applications; compare products, check reviews, and get pricing directly from manufacturers.

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Roche´s GS Junior Sequencing System Used in Research on Personalized Tumor Treatment