APR 06, 2018 9:00 AM PDT

Multiplex Immunofluorescence Profiling of Tumor Biopsies Using UltraPlex mxIF Technology

Sponsored by: Leica Biosystems
Speakers
  • Director of Preclinical Development & Strategic Partnerships Cell IDx
    Biography
      Received her PhD in immunology from the University of Cambridge, UK and trained as a postdoctoral fellow at Scripps Research Institute, La Jolla, California. Dr. Snyder has over 30 years' experience in immunology research, reagent development, preclinical development of biotherapeutics, and business development of immunoassay and immunodiagnostic products.

      She has held positions as Associate Professor at the University of California, San Diego, as well as Director of Immunology at Dynavax Technologies and key business development roles at both Solulink Biosciences and Cell IDx. Dr Snyder has over 40 papers and reviews in the areas of immune regulation and vaccine development and holds two patents.
    • Image Analysis Specialist for Leica Biosystems Aperio ePathology
      Biography
        Image Analysis Specialist for Leica Biosystems Aperio ePathology; based in Newcastle, UK

        Formerly, Product Support Specialist for CytoVision, Ariol & Aperio VERSA 2010-2016, Marie-Louise has a 13 years of experience in bio-medical research, being trained as a Molecular Biologist, extending into Cell Biology, Cytogenetics, Developmental Biology and Biochemistry during the course of research career.

        Marie-Louise received her PhD in Biological Sciences from University of Leicester for deletion-mapping in human breast cancer. She has also received two diverse post-doctoral research fellowships at the University of Edinburgh, creating human artificial chromosomes, and investigating Drosophila cell cycle mutants.

      Abstract

      DATE: April 6, 2018
      TIME: 09:00am PDT, 12:00pm EDT

      An unmet need in tissue diagnostics is the ability to simultaneously detect three or more markers on a single tissue specimen, i.e. multiplexing.   Unlike other immunoassays, i.e. flow cytometry, ELISA and bead assays, which solely quantify the biomarker in a sample, a multiplex immunoassay quantifies the biomarker, identifies the location of the cell in the tissue and identifies the spatial relationship of the biomarkers with respect to each other.  Being able to identify the contextual relationships of immune cell phenotypes and other biomarkers in a tumor is believed to be critical to understanding the state of the immune system before and after immunotherapy.  Multiplex immunostaining can also be described as image cytometry or flow cytometry in situ.  Detecting multiple biomarkers on a single slide presents many challenges: correct selection of biomarkers, sourcing and qualifying antibodies against the biomarkers, detection methods, optimization of the staining-detection protocol and how to visualize, record and interpret the resulting complex staining pattern, all without generating artefact from cross-talk at each step. Today we shall demonstrate a complete solution for standardization of immunofluorescent staining and detection, digitization and analysis for tumor biopsy material.  We have demonstrated that this protocol can be carried out on the Leica Biosystems BOND RX auto-stainer and the stained tissue can be imaged on the Aperio system that allows the user to easily digitize the whole slide at high-resolution, manage the resulting huge image files and provide accurate quantitative interpretation in the form of mark-up images and numerical data at the per cell level providing detailed phenotype information.

      Learning Objectives:

      • What is Multiplex and what is the role of multiplex in Digital Pathology?
      • What tools are available today for multiplex?

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