Immunology

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    Protocols in Current Issue
    Quantitation of TLR4 Internalization in Response to LPS in Thioglycollate Elicited Peritoneal Mouse Macrophages by Flow Cytometry
    Authors:  Katharina Richard, Stefanie N. Vogel and Darren J. Perkins, date: 09/20/2019, view: 199, Q&A: 0
    [Abstract] Internalization of cell surface Toll-like Receptor 4 (TLR4) is a convenient read-out to measure LPS dependent activation of the TRIF adaptor pathway. We here provide a protocol to quantify the LPS dependent internalization of TLR4 using thioglycollate-elicited peritoneal macrophages by flow cytometry.
    Immunohistochemical Staining of CD8α in Diabetic Mouse Kidney
    Authors:  Ming-Zhi Zhang and Raymond C. Harris, date: 09/20/2019, view: 184, Q&A: 0
    [Abstract] Immune cell infiltration, particularly cytotoxic CD8α lymphocyte infiltration, plays an important role in development of diabetic nephropathy. Although CD8α infiltration can be evaluated by its production of cytokines, its localization in the kidney is of particular importance. The current protocol describes CD8α immunostaining using a Vectastain ...
    A Refined Protocol for Identifying Citrulline-specific Monoclonal Antibodies from Single Human B Cells from Rheumatoid Arthritis Patient Material
    [Abstract] We describe here a detailed, refined protocol for the generation of citrulline-specific monoclonal antibodies from single human B cells from rheumatoid arthritis (RA) patients. This protocol provides a detailed guide of the procedure starting from single B cells of your choice and followed by amplification of the variable region of immunoglobulin ...
    Isolation of Neutrophil Nuclei for Use in NETosis Assays
    Author:  Dave Boucher, date: 09/05/2019, view: 412, Q&A: 0
    [Abstract] Neutrophils are critical immune cells that protect our body against invading pathogens. They generate antibacterial DNA structures called neutrophil extracellular traps (NET). Recently we identified a new mechanism that enables NET formation. We observed that following recognition of lipopolysaccharides, inflammatory caspases cleave Gasdermin D ...
    In vitro Differentiation of Thymic Treg Cell Progenitors to Mature Thymic Treg Cells
    Authors:  David L. Owen and Michael A. Farrar, date: 08/20/2019, view: 308, Q&A: 0
    [Abstract] Thymic Treg cell differentiation occurs via a two-step process. Step one generates Treg cell progenitors (TregP) and is driven by strong TCR interactions with antigens presented in the thymus. Step two is initiated by activation of STAT5 via IL-2, or IL-15, leading to mature Treg cells capable of ...
    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: 509, 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 ...
    Visualizing Hypoxia in a Murine Model of Candida albicans Infection Using in vivo Biofluorencence
    Authors:  José Pedro Lopes and Constantin F. Urban, date: 08/05/2019, view: 508, Q&A: 0
    [Abstract] Candida albicans is a leading human fungal pathogen that uses several metabolic adaptations to escape immune cells and causes systemic disease. Here, we describe a protocol for measuring one of these adaptations, the ability to thrive in hypoxic niches. Hypoxia was generated after successful subdermal infection with C. albicans ...
    Precision Technique for Splenectomy Limits Mouse Stress Responses for Accurate and Realistic Measurements for Investigating Inflammation and Immunity
    Authors:  Shengwen Calvin Li, Anthony D. Rangel and Mustafa H. Kabeer, date: 08/05/2019, view: 497, Q&A: 0
    [Abstract] Splenectomy in an animal model requires a standardized technique utilizing best practice to avoid variability which can result in adverse impact to the animal resulting in flawed physiologic responses simply due to technique rather than to the studied variables. In the case of the spleen, often investigators are analyzing the animal immune or ...
    Isolation and Long-term Cultivation of Mouse Alveolar Macrophages
    [Abstract] Alveolar macrophages (AM) are tissue-resident macrophages that colonize the lung around birth and can self-maintain long-term in an adult organism without contribution of monocytes. AM are located in the pulmonary alveoli and can be harvested by washing the lungs using the method of bronchoalveolar lavage (BAL). Here, we compared different ...
    Gentamicin Protection Assay to Determine the Number of Intracellular Bacteria during Infection of Human TC7 Intestinal Epithelial Cells by Shigella flexneri
    Authors:  Atin Sharma and Andrea Puhar, date: 07/05/2019, view: 761, Q&A: 0
    [Abstract] Shigella flexneri is an intracellular bacterial pathogen that gains access to the gut epithelium using a specialized Type III Secretion System (T3SS). Various determinants mediating this invasive infection have been experimentally verified using the classical gentamicin protection assay presented here. In this assay epithelial cell lines ...



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