Gene Expression Analysis

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Gene expression profiling analysis is an important part of the drug development process. It is a powerful tool that can be used to uncover the complex molecular "signature" of a disease and provide information that can determine efficacy of new therapeutic agents.

Harnessing the power of NanoString and other PCR-based technologies, Labcorp can provide a variety of gene expression analysis services (DNA and RNA) to allow researchers to gain a molecular snapshot of the tumor microenvironment and to provide answers that can assist researchers with decisions during early-stage drug discovery by confirming the expected mechanism of action and target engagement of a therapeutic. These services may also be applied to cell culture studies for proof-of-concept research prior to advancing to in vivo models.

  • NanoString

    A recent addition to Labcorp’s service portfolio, NanoString’s nCounter® Analysis System and the GeoMx® Digital Spatial Profiler (DSP) can be used to inform how a drug modulates gene expression and the signaling pathways that regulate tumor growth.

    The NanoString nCounter® allows for analysis of up to 800 RNA, DNA or protein targets simultaneously with high sensitivity and precision. The system utilizes molecular "barcodes" and single molecule imaging to quantitate hundreds of unique transcripts in a single sample.

    Other key advantages of using the NanoString nCounter® include:

    • A number of “off-the-shelf panels” for oncology (human and mouse) available, customizable to include up to 55 additional unique targets
    • Optimized for challenging sample types (FFPE, tissue, lysates and biofluids)
    • Only low amounts of precious sample material required
    • Accurate and faster than qPCR (no amplification requirements) and simpler than next generation sequencing

    While NanoString nCounter® provides great quantitative data on gene or protein expression levels from tumor samples, spatial context is key to gaining further insights into tissue biology. NanoString GeoMx® DSP is the spatial biology solution and it can be used to gain a deeper understanding of the tumor and the complex interactions within the tumor microenvironment.

    The NanoString GeoMx® DSP technology builds upon the highly robust NanoString nCounter® digital barcode technology, providing morphological context and high-plex protein or gene expression profiling from just one prepared slide sample. The technology uses software that offers tremendous flexibility when selecting a region-of-interest strategy (geometric, segmentation, cell-type specific, contour, gridded) to visualize spatial architecture and analyze multiple biomarkers of a tissue sample. The data analysis software in GeoMx® DSP supports easy visualization and interpretation of data. High-resolution images can be displayed alongside quantitative profiling data, allowing interaction with either dataset in real time.

    Labcorp is the only preclinical CRO, globally, to offer NanoString’s GeoMx® DSP technology.

    In addition to being utilized as a standalone in vitro service for genetic expression screening using cell-based models, NanoString may also be used in an ex vivo setting to analyze the drug mechanism of action in in vivo animal models, thereby offering the ability to screen multiple therapeutics to identify promising lead compounds.

  • PCR en temps réel

    Nous utilisons un système de PCR en temps réel StepOnePlus™ qui peut lire quatre couleurs différentes dans une plaque à 96 puits et supporte des tests tels que le génotypage de SNP, l'analyse de l'expression des gènes, l'expression du micro-ARN, l'analyse de translocation et la détection des gènes. Nos spécialistes de la PCR peuvent vous aider à déterminer l'expression de gènes spécifiques dans des cellules en culture, des tissus frais ou des tissus congelés. Que vous ayez besoin de mesurer l'expression de gènes dans différentes lignées cellulaires, souches de souris, tissus ou tumeurs, ou de surveiller l'expression de différents gènes avec différents traitements, nos spécialistes de la PCR peuvent vous aider à concevoir une étude adaptée.

  • Profilage de l'expression des lignées cellulaires et des gènes des tumeurs

    Le profilage de l'expression des gènes correspond à la mesure de l'activité (l'expression) de milliers de gènes à la fois pour créer une image globale de la fonction cellulaire. L'ARN est séquencé à l'aide d'un séquençage de nouvelle génération, quantifié et aligné sur des milliers de séquences d'ARN connues provenant de gènes spécifiques. Ces profils peuvent, par exemple, distinguer les cellules qui se divisent activement, montrer comment les cellules réagissent à un traitement particulier ou déterminer quels gènes sont exprimés différemment dans différentes lignées cellulaires, souches de souris, tissus ou tumeurs. Labcorp collaborates with a partner laboratory that specializes in sequencing the RNA. Une fois obtenue l'information de séquençage, nous avons le logiciel permettant de quantifier, d'aligner et d'analyser les données. Nous pouvons comparer l'expression de gènes individuels, d'ensembles de gènes apparentés, de groupes de gènes spécifiques à certaines voies ou processus, et de génomes entiers entre les échantillons et afficher les résultats comparatifs sous forme de graphiques et de figures simples.

Access a customized offering to meet your gene expression requirements

At Labcorp, we combine state-of-the-art technologies with a customized service offering to meet your gene expression requirements. Our highly specialized team has a wealth of knowledge and experience in developing, optimizing, and validating gene expression readouts throughout the entire drug discovery process. We work closely with you to design a tailored workflow to generate a wealth of data to help you uncover the mechanism of action of your compound(s) and what signaling pathways and/or downstream genes are regulated in the context of tumor growth. We pride ourselves in having an extensive portfolio of animal/tumor models to ensure we can provide our clients with the “best fit” model for their project. Contact us today to discuss your study requirements and how our gene expression analysis services can add new insights into your research projects. 

Spotlight

Le panel nCounter® IO 360™et la cytométrie de flux combinent le transcriptome et des profils immunophénotypiques de sous-ensembles immunitaires pour une analyse complète de l'immunothérapie des tumeurs.

Transcriptomic profiling can be used to examine the interaction between the tumor microenvironment (TME) and the immune system and is a powerful tool to investigate the mechanistic action of immunotherapies. In this Tech Spotlight, we demonstrate how gene expression measured in solid tumors using the nCounter® PanCancer IO 360™ panel (NanoString Technologies) can be combined with flow cytometry to provide a comprehensive evaluation of the effects that immunotherapy has on the anti-tumor immune response.

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