Cell Biology

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    Protocols in Current Issue
    A Quantitative Single-cell Flow Cytometry Assay for Retrograde Membrane Trafficking Using Engineered Cholera Toxin
    Authors:  Mariska Simpson, Wayne I. Lencer and Phi Luong, date: 08/05/2020, view: 668, Q&A: 0
    [Abstract] The organization and distribution of proteins, lipids, and nucleic acids in eukaryotic cells is an essential process for cell function. Retrograde trafficking from the plasma membrane to the Golgi and endoplasmic reticulum can greatly modify cell membrane composition and intracellular protein dynamics, and thus typifies a key sorting step. ...
    Analysis of EGF Receptor Endocytosis Using Fluorogen Activating Protein Tagged Receptor
    [Abstract] Functional activities of many transmembrane proteins are controlled by their endocytosis. One of the most studied experimental models is the epidermal growth factor (EGF) receptor (EGFR). However, endocytic trafficking of EGFR has been predominantly analyzed using labeled EGF, whereas quantitative analyses of the endocytosis of the receptor itself ...
    Bacterial Synchronized Transfer Assays in Bone Marrow Derived Macrophages
    Authors:  Sedelia R Dominguez, Tom Kawula and Shaun P Steele, date: 11/20/2019, view: 1665, Q&A: 0
    [Abstract] Merocytophagy (“mero”, Greek for partial; “cytophagy” for cell eating) is a process by which cells acquire microbes and cytosolic material through phagocytosis of a small portion of neighboring cells upon cell-cell contact. Cell-cell contact dependent transfer events can be assessed through co-incubation of differently labeled cells. With these ...
    Determination of Cellular Uptake and Endocytic Pathways
    Authors:  Jing Gong, Hong-Xia Wang and Kam W. Leong, date: 02/20/2019, view: 4406, Q&A: 0
    [Abstract] Efficiency of drug and gene delivery via nonviral vehicles is contingent on proper cellular uptake and intracellular release. Further, various cargos, such as nucleases for gene editing or inhibitors for endosomal receptors, require transport to specific compartments of the cell. Hence, characterization of cellular uptake and endocytic pathways is ...
    Phagocytosis Assay for α-Synuclein Fibril Uptake by Mouse Primary Microglia
    Authors:  Cuilian Du, Feifan Zhang and Claire Xi Zhang, date: 09/05/2018, view: 2958, Q&A: 0
    [Abstract] Microglia are professional phagocytes in the brain and deficiency in their phagocytic activity plays an important role in Parkinson’s disease. This protocol mainly describes the phagocytosis assay for uptake of α-synuclein preformed fibrils, a pathologic form of α-synuclein, by primary microglia.



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