Immunology

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    Protocols in Current Issue
    Brain-localized and Intravenous Microinjections in the Larval Zebrafish to Assess Innate Immune Response
    Authors:  Alison M. Rojas and Celia E. Shiau, date: 04/05/2021, view: 168, Q&A: 0
    [Abstract]

    Creating a robust and controlled infection model is imperative for studying the innate immune response. Leveraging the particular strengths of the zebrafish model system, such as optical transparency, ex utero development, and large clutch size, allows for the development of methods that yield consistent and reproducible results. We created a

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    Ex vivo Assessment of Mitochondrial Function in Human Peripheral Blood Mononuclear Cells Using XF Analyzer
    Authors:  Alica Schöller-Mann, Katja Matt, Barbara Hochecker and Jörg Bergemann, date: 04/05/2021, view: 79, Q&A: 0
    [Abstract]

    Cellular health and function, as we know today, depend on a large extent on mitochondrial function. The essential function of mitochondria is the energy production, more precisely ATP production, via oxidative phosphorylation. Mitochondrial energy production parameters therefore represent important biomarkers. Studies on human cells have mainly

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    Liposomal Clodronate-mediated Macrophage Depletion in the Zebrafish Model
    Authors:  Linlin Yang, Alison M. Rojas and Celia E. Shiau, date: 03/20/2021, view: 563, Q&A: 0
    [Abstract]

    The ability to conduct in vivo macrophage-specific depletion remains an effective means to uncover functions of macrophages in a wide range of physiological contexts. Compared to the murine model, zebrafish offer superior imaging capabilities due to their optical transparency starting from a single-cell stage to throughout larval development.

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    Murine Monocyte and Macrophage Culture
    Authors:  Simone M. Haag and Aditya Murthy, date: 03/20/2021, view: 1222, Q&A: 0
    [Abstract]

    Myeloid progenitors in the bone marrow generate monocytes, macrophages, granulocytes and most dendritic cells. Even though these innate immune cells are part of the same lineage, each cell type plays a specific and critical role in tissue development, host defense and the generation of adaptive immunity. Protocols have been developed in the past

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    A Versatile Protocol to Quantify BCR-mediated Phosphorylation in Human and Murine B Cell Subpopulations
    Authors:  Jasper Rip, Rudi W. Hendriks and Odilia B. J. Corneth, date: 02/05/2021, view: 461, Q&A: 0
    [Abstract]

    Signal transduction is the process by which molecular signals are transmitted from the cell surface to its interior, resulting in functional changes inside the cell. B cell receptor (BCR) signaling is of crucial importance for B cells, as it regulates their differentiation, selection, survival, cellular activation and proliferation. Upon BCR

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    In vitro STING Activation with the cGAMP-STINGΔTM Signaling Complex
    Authors:  Yanpu He, Celestine Hong, Darrell J. Irvine, Jiahe Li and Paula T. Hammond, date: 02/05/2021, view: 563, Q&A: 0
    [Abstract] Activating the STING (stimulator of interferon genes) signaling pathway via administration of STING agonist cyclic GMP-AMP (cGAMP) has shown great promise in cancer immunotherapy. While state-of-the-art approaches have predominantly focused on the encapsulation of cGAMP into liposomes or polymersomes for cellular delivery, we discovered that the ...
    Multiplex T-cell Stimulation Assay Utilizing a T-cell Activation Reporter-based Detection System
    Authors:  Laurie G. Landry, Sarah E. Mann, Amanda M. Anderson and Maki Nakayama, date: 01/20/2021, view: 1112, Q&A: 0
    [Abstract]

    Immune tolerance and response are both largely driven by the interactions between the major histocompatibility complex (MHC) expressed by antigen presenting cells (APCs), T-cell receptors (TCRs) on T-cells, and their cognate antigens. Disordered interactions cause the pathogenesis of autoimmune diseases such as type 1 diabetes. Therefore, the

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    Analysis of B Cell Migration by Intravital Microscopy
    [Abstract]

    During immune responses, B cells home to lymph nodes (LN), where they encounter antigens. Homing starts with capture and L-selectin-dependent rolling on the activated endothelium of high endothelial venules (HEV). After recognition of chemokines presented on HEV, activation of B cell integrins occurs mediating firm arrest. Subsequently, B cells

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    Protocol for Isolation, Stimulation and Functional Profiling of Primary and iPSC-derived Human NK Cells
    [Abstract]

    Natural killer (NK) cells are innate immune cells, characterized by their cytotoxic capacity, and chemokine and cytokine secretion upon activation. Human NK cells are identified by CD56 expression. Circulating NK cells can be further subdivided into the CD56bright (~10%) and CD56dim NK cell subsets (~90%). NK cell-like cells can also be derived

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    Magnet-assisted Flow Cytometry of in vivo Tumors to Quantitate Cell-specific Responses to Magnetic Iron Oxide Nanoparticles
    Authors:  Preethi Korangath and Robert Ivkov, date: 11/20/2020, view: 912, Q&A: 0
    [Abstract] A clear understanding of nanoparticle interactions with living systems at the cellular level is necessary for developing nanoparticle-based therapeutics. Magnetic iron oxide nanoparticles provide unique opportunities to study these interactions because of their responsiveness to magnetic fields. This enables sorting of cells containing ...



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