Cancer Biology



    Protocols in Current Issue
    A Transient Transfection-based Cell Adhesion Assay with 293T Cells
    Authors:  Rohit Singh and Beom K. Choi, date: 01/05/2021, view: 516, Q&A: 0

    The in vitro cell adhesion assay is a quantitative method for measuring selective cell adhesion to specific proteins. Traditionally, cell adhesion assays employ purified protein immobilized on a solid glass or plastic surface. Here, we describe a transient 293T cell transfection-based cell adhesion assay to study selective cell adhesion of a

    Triacylglycerol Measurement in HeLa Cells
    Authors:  Ximing Du and Hongyuan Yang, date: 12/20/2020, view: 734, Q&A: 0

    Lipid droplets store triacylglycerols (triglycerides) and sterol esters to regulate lipid and energy homeostasis. Triacylglycerol measurement is often performed during the investigation of lipid droplet formation and growth. This protocol describes a reliable method using a fluorometric lipid quantification kit to measure triacylglycerols

    Equilibrium and Kinetic Measurements of Ligand Binding to HiBiT-tagged GPCRs on the Surface of Living Cells
    Authors:  Michelle E. Boursier, Sergiy Levin, Robin Hurst and Rachel Friedman Ohana, date: 12/20/2020, view: 567, Q&A: 0

    G-protein coupled receptors (GPCRs) remain at the forefront of drug discovery efforts. Detailed assessment of features contributing to GPCR ligand engagement in a physiologically relevant environment is imperative to the development of new therapeutics with improved efficacy. Traditionally, binding properties such as affinity and kinetics were

    Advances in Proximity Ligation in situ Hybridization (PLISH)
    Authors:  Monica Nagendran, Adam M Andruska, Pehr B Harbury and Tushar J Desai, date: 11/05/2020, view: 1016, Q&A: 0
    [Abstract] Understanding tissues in the context of development, maintenance and disease requires determining the molecular profiles of individual cells within their native in vivo spatial context. We developed a Proximity Ligation in situ Hybridization technology (PLISH) that enables quantitative measurement of single cell gene expression ...
    A Novel and Robust Single-cell Trapping Method on Digital Microfluidics
    [Abstract] Due to cell heterogeneity, the differences among individual cells are averaged out in bulk analysis methods, especially in the analysis of primary tumor biopsy samples from patients. To deeply understand the cell-to-cell variation in a primary tumor, single-cell culture and analysis with limited amount of cells are in high demand. Microfluidics ...
    A CRISPR Competition Assay to Identify Cancer Genetic Dependencies
    Authors:  Vishruth Girish and Jason M. Sheltzer, date: 07/20/2020, view: 2111, Q&A: 0
    [Abstract] The CRISPR/Cas9 system is a powerful tool for genome editing, wherein the RNA-guided nuclease Cas9 can be directed to introduce double-stranded breaks (DSBs) at a targeted locus. In mammalian cells, these DSBs are typically repaired through error-prone processes, resulting in insertions or deletions (indels) at the targeted locus. Researchers can ...
    NMR waterLOGSY as An Assay in Drug Development Programmes for Detecting Protein-Ligand Interactions–NMR waterLOGSY
    Authors:  Carole J. R. Bataille, Terence H. Rabbitts and Timothy D. W. Claridge, date: 07/05/2020, view: 1417, Q&A: 0
    [Abstract] In drug development programmes, multiple assays are needed for the determination of protein-compound interactions and evaluation of potential use in assays with protein-protein interactions. In this protocol we describe the waterLOGSY NMR method for confirming protein-ligand binding events.
    Isolation of Lipid Rafts from Cultured Mammalian Cells and Their Lipidomics Analysis
    Authors:  Nigora Mukhamedova, Kevin Huynh, Hann Low, Peter J. Meikle and Dmitri Sviridov, date: 07/05/2020, view: 1346, Q&A: 0
    [Abstract] Lipid rafts are distinct liquid-ordered domains of plasma membranes of most eukaryotic cells providing platform for signaling pathways. Lipid composition of rafts is critical for their structural integrity and for regulation of signaling pathways originating from rafts. Here we provide a protocol to isolate lipid rafts from cultured human and ...
    In vivo Tumor Growth and Spontaneous Metastasis Assays Using A549 Lung Cancer Cells
    [Abstract] Metastasis accounts for the majority of cancer related deaths. The genetically engineered mouse (GEM) models and cell line-based subcutaneous and orthotopic mouse xenografts have been developed to study the metastatic process. By using lung cancer cell line A549 as an example, we present a modified protocol to establish the cell line-based ...
    Single-cell qPCR Assay with Massively Parallel Microfluidic System
    Authors:  Marta Prieto-Vila, Takahiro Ochiya and Yusuke Yamamoto, date: 03/20/2020, view: 1640, Q&A: 0
    [Abstract] The single-cell transcriptome is the set of messenger RNA molecules expressed in one cell. It is extremely variable and changes according to external, physical and biochemical conditions. Due to sensitivity shortages, most of genetic studies use bulk samples, providing only the average gene expression. Single-cell technologies have provided a ...

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