Cell Biology

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    Protocols in Current Issue
    Spherical Invasion Assay: A Novel Method to Measure Invasion of Cancer Cells
    [Abstract] The invasion of tumor cells into the neighboring blood vessels and lymph nodes is a vital step for distant metastasis. Traditionally, the invasive activity of growth factors (or the anti-invasive activity of drugs) is measured with the Boyden chamber assay. However, this assay has a few disadvantages like poor physiological relevance of transwell ...
    HiSAT: A Novel Method for the Rapid Diagnosis of Allergy
    Authors:  Hirotomo Shibaguchi and Yuki Yasutaka, date: 02/05/2022, view: 1172, Q&A: 0
    [Abstract]

    To identify causative substances for allergies to drugs or foods, the lymphocyte transformation test (LTT) is currently widely used as in vitro test, but its accuracy is not satisfactory. We have developed a novel method designated high-sensitivity allergy test (HiSAT) for determining allergy expression by measuring cell kinetics, using the

    ...
    An Image-based Dynamic High-throughput Analysis of Adherent Cell Migration
    [Abstract]

    In this protocol, we describe a method to monitor cell migration by live-cell imaging of adherent cells. Scratching assay is a common method to investigate cell migration or wound healing capacity. However, achieving homogenous scratching, finding the optimal time window for end-point analysis and performing an objective image analysis imply, even

    ...
    Single Cell Migration Assay Using Human Breast Cancer MDA-MB-231 Cell Line
    Authors:  David M. Gau and Partha Roy, date: 04/20/2020, view: 4929, Q&A: 0
    [Abstract] Cell migration is a fundamental cellular process that plays a crucial role in many physioglogical and pathological processes such as wound healing or cancer metastasis. Many assays have been developed to examine cell migration, such as the wound healing or scratch assay, Boyden Chamber or transwell assay, and the method we will describe here, ...
    Analysis of Random Migration of Cancer Cells in 3D
    Authors:  Sai P. Visweshwaran and Alexis Gautreau, date: 01/05/2020, view: 4552, Q&A: 1
    [Abstract] The ability of cancer cells to migrate through a complex three-dimensional (3D) environment is a hallmark event of cancer metastasis. Therefore, an in vitro migration assay to evaluate cancer cell migration in a 3D setting is valuable to examine cancer progression. Here, we describe such a simple migration assay in a 3D ...
    Explant Culture of the Embryonic Mouse Spinal Cord and Gene Transfer by ex vivo Electroporation
    [Abstract] Developing axons change responsiveness to guidance cues during the journey to synapse with target cells. Axon crossing at the ventral midline serves as a model for studying how axons accomplish such a switch in their response. Although primary neuron culture has been a versatile technique for elucidating various developmental mechanisms, many in ...
    Fibroblast Gap-closure Assay-Microscopy-based in vitro Assay Measuring the Migration of Murine Fibroblasts
    Authors:  Agnieszka P. Looney and Mallar Bhattacharya, date: 08/20/2019, view: 4418, Q&A: 0
    [Abstract] Pulmonary fibrosis is characterized by pathological scaring of the lung. Similar to other fibrotic diseases, scar formation is driven by excessive extracellular matrix deposition by activated, proliferative, and migratory fibroblasts.

    Currently, the two most widely used chemotaxis and cell migration assays are the scratch assay and the ...
    Live-cell Migration Assays to Study Motility of Neural and Glial (Oligodendrocyte) Progenitor Cells
    Authors:  Chu-Yen Chen, Fu-Sheng Chou and Pei-Shan Wang, date: 06/20/2019, view: 3954, Q&A: 0
    [Abstract] Cell motility has been extensively studied in in vitro models using fibroblasts and keratocytes, but the cell type-specific mechanisms underlying migration of lineage- or disease-specific cells, such as neural and glial progenitor cells, remain an active field for investigation. The migrating neural and glial progenitor cells contribute ...
    Human Endothelial Cell Spheroid-based Sprouting Angiogenesis Assay in Collagen
    Authors:  Fabian Tetzlaff and Andreas Fischer, date: 09/05/2018, view: 15631, Q&A: 1
    [Abstract] Angiogenesis, the formation of new blood vessels from pre-existing ones plays an important role during organ development, regeneration and tumor progression. The spheroid-based sprouting assay is a well-established and robust method to study the influence of genetic alterations or pharmacological compounds on capillary-like tube formation of ...
    Fluorescent Labeling of Rat-tail Collagen for 3D Fluorescence Imaging
    Author:  Andrew D. Doyle, date: 07/05/2018, view: 7606, Q&A: 0
    [Abstract] Rat tail collagen solutions have been used as polymerizable in vitro three-dimensional (3D) extracellular matrix (ECM) gels for single and collective cell migration assays as well as spheroid formation. These 3D hydrogels are a relatively inexpensive, simple to use model system that can mimic the in vivo physical characteristics ...



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