Cell Biology

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    Protocols in Current Issue
    Characterization of Immunological Niches within Peyer’s Patches by ex vivo Photoactivation and Flow Cytometry Analysis
    Authors:  Adi Biram and Ziv Shulman, date: 03/20/2020, view: 217, Q&A: 0
    T follicular helper (Tfh) cells regulate B cell selection for entry into the germinal center (GC) reaction or for differentiation into antibody forming cells. This process takes place at the border between the T and B zones in lymphoid organs and ...
    An ex vivo Approach to Assess Mitochondrial ROS by Flow Cytometry in AAV-tagged Astrocytes in Adult Mice
    Authors:  Carlos Vicente-Gutierrez and Juan P. Bolaños, date: 03/20/2020, view: 430, Q&A: 0
    Mitochondrial reactive oxygen species (mROS) are naturally produced signalling molecules extremely relevant for understanding both health- and disease-associated biological processes. The study of mROS in the brain is currently underway to decipher ...
    Analyzing the Quenchable Iron Pool in Murine Macrophages by Flow Cytometry
    Authors:  Michael Riedelberger and Karl Kuchler, date: 03/20/2020, view: 148, Q&A: 0
    Tissue-resident macrophages are pivotal for a tightly-regulated iron metabolism at a cellular and systemic level, since subtle iron alterations increase the susceptibility for microbial infections or drive multiple diseases. However, research on ...
    Method for Measuring Mucociliary Clearance and Cilia-generated Flow in Mice by ex vivo Imaging
    Authors:  Eric Song and Akiko Iwasaki, date: 03/20/2020, view: 190, Q&A: 0
    Ex vivo biophysical measurements provide valuable insights into understanding both physiological and pathogenic processes. One critical physiological mechanism that is regulated by these biophysical properties is cilia-generated flow that ...
    Optic Nerve Crush in Mice to Study Retinal Ganglion Cell Survival and Regeneration
    In diseases such as glaucoma, the failure of retinal ganglion cell (RGC) neurons to survive or regenerate their optic nerve axons underlies partial and, in some cases, complete vision loss. Optic nerve crush (ONC) serves as a useful model not only ...
    Testing Bone Formation Induction by Calvarial Injection Assay in vivo
    Authors:  Narelle E McGregor, Ingrid J Poulton, Emma C Walker and Natalie A Sims, date: 03/20/2020, view: 280, Q&A: 0
    Bone formation occurs during embryogenesis, skeletal growth and during the process of skeletal renewal throughout life. In the process of bone formation, osteoblasts lay down a collagen-containing matrix, termed osteoid, which is gradually hardened ...
    Characterization of Immunological Niches within Peyer’s Patches by ex vivo Photoactivation and Flow Cytometry Analysis
    Authors:  Adi Biram and Ziv Shulman, date: 03/20/2020, view: 217, Q&A: 0
    [Abstract] T follicular helper (Tfh) cells regulate B cell selection for entry into the germinal center (GC) reaction or for differentiation into antibody forming cells. This process takes place at the border between the T and B zones in lymphoid organs and involves physical contacts between T and B cells. During these interactions, T cells endow the B cells ...
    An ex vivo Approach to Assess Mitochondrial ROS by Flow Cytometry in AAV-tagged Astrocytes in Adult Mice
    Authors:  Carlos Vicente-Gutierrez and Juan P. Bolaños, date: 03/20/2020, view: 430, Q&A: 0
    [Abstract] Mitochondrial reactive oxygen species (mROS) are naturally produced signalling molecules extremely relevant for understanding both health- and disease-associated biological processes. The study of mROS in the brain is currently underway to decipher their physiopathological roles and contributions in neurological diseases. Recent advances in this ...
    Analyzing the Quenchable Iron Pool in Murine Macrophages by Flow Cytometry
    Authors:  Michael Riedelberger and Karl Kuchler, date: 03/20/2020, view: 148, Q&A: 0
    [Abstract] Tissue-resident macrophages are pivotal for a tightly-regulated iron metabolism at a cellular and systemic level, since subtle iron alterations increase the susceptibility for microbial infections or drive multiple diseases. However, research on cellular iron homeostasis in macrophages remains challenging due to the limited amount of available ...
    Method for Measuring Mucociliary Clearance and Cilia-generated Flow in Mice by ex vivo Imaging
    Authors:  Eric Song and Akiko Iwasaki, date: 03/20/2020, view: 190, Q&A: 0
    [Abstract] Ex vivo biophysical measurements provide valuable insights into understanding both physiological and pathogenic processes. One critical physiological mechanism that is regulated by these biophysical properties is cilia-generated flow that mediates mucociliary clearance, which is known to provide protection against foreign particles and ...
    Optic Nerve Crush in Mice to Study Retinal Ganglion Cell Survival and Regeneration
    [Abstract] In diseases such as glaucoma, the failure of retinal ganglion cell (RGC) neurons to survive or regenerate their optic nerve axons underlies partial and, in some cases, complete vision loss. Optic nerve crush (ONC) serves as a useful model not only of traumatic optic neuropathy but also of glaucomatous injury, as it similarly induces RGC cell death ...
    Testing Bone Formation Induction by Calvarial Injection Assay in vivo
    Authors:  Narelle E McGregor, Ingrid J Poulton, Emma C Walker and Natalie A Sims, date: 03/20/2020, view: 280, Q&A: 0
    [Abstract] Bone formation occurs during embryogenesis, skeletal growth and during the process of skeletal renewal throughout life. In the process of bone formation, osteoblasts lay down a collagen-containing matrix, termed osteoid, which is gradually hardened by incorporation of mineral crystals. Although osteoblasts can be induced to differentiate and to ...
    Lipid Mixing Assay for Murine Myoblast Fusion and Other Slow Cell-cell Fusion Processes
    [Abstract] Lipid mixing (redistribution of lipid probes between fusing membranes) has been widely used to study early stages of relatively fast viral and intracellular fusion processes that take seconds to minutes. Lipid mixing assays are especially important for identification of hemifusion intermediates operationally defined as lipid mixing without content ...
    Insect Feeding Assays with Spodoptera exigua on Arabidopsis thaliana
    Authors:  Yanrong You, Chunpeng An and Chuanyou Li, date: 03/05/2020, view: 276, Q&A: 0
    [Abstract] Plant-insect interaction is an important field for studying plant immunity. The beet armyworm, Spodoptera exigua, is one of the best-known agricultural pest insects and is usually used to study plant interactions with chewing insects. Here, we describe a protocol for insect feeding assays with Spodoptera exigua lavae using model ...
    Optogenetic Tuning of Ligand Binding to The Human T cell Receptor Using The opto-ligand-TCR System
    [Abstract] T cells are one major cell type of the immune system that use their T cell antigen receptor (TCR) to bind and respond to foreign molecules derived from pathogens. The ligand-TCR interaction half-lives determine stimulation outcome. Until recently, scientists relied on mutating either the TCR or its ligands to investigate how varying TCR-ligand ...
    Growth Recovery Assay and FACS-based Population Sorting Following Territorial Exclusion in Proteus mirabilis
    Authors:  Murray J. Tipping and Karine A. Gibbs, date: 03/05/2020, view: 252, Q&A: 0
    [Abstract] Many bacteria take part in self recognition and kin discrimination behavior using contact-dependent effectors. Understanding the effects these effectors cause is important to explain bacterial community formation and population dynamics. Typically, kin discrimination effectors are toxins that kill target cells; their effect is therefore obvious ...



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