Cell Biology

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    Protocols in Current Issue
    Live-cell Imaging and Quantitative Analysis of Meiotic Divisions in Caenorhabditis elegans Males
    Authors:  Gunar Fabig, Falko Löffler, Christian Götze and Thomas Müller-Reichert, date: 10/20/2020, view: 179, Q&A: 0
    Live-imaging of meiotic cell division has been performed in extracted spermatocytes of a number of species using phase-contrast microscopy. For the nematode Caenorhabditis elegans, removal of spermatocytes from gonads has damaging effects, ...
    Acidified Blue Ink-staining Procedure for the Observation of Fungal Structures Inside Roots of Two Disparate Plant Lineages
    Authors:  Jill Kowal, Elena Arrigoni and Sophie Lane, date: 10/20/2020, view: 170, Q&A: 0
    Identifying microscopic mycorrhizal fungal structures in roots, i.e., hyphae, vesicles and arbuscules, requires root staining procedures that are often time consuming and involves chemicals known to present health risks from exposure. By ...
    Real-time Three-dimensional Tracking of Endocytic Vesicles
    Authors:  Stephanie Duhamel and Kossay Zaoui, date: 10/20/2020, view: 226, Q&A: 0
    Endocytic trafficking and recycling are fundamental cellular processes that control essential functions such as signaling protein complexes transport and membrane identity. The small GTPase Rabs are indispensable component of the endosomal recycling ...
    Derivation of Induced Pluripotent Stem Cells from Human Fibroblasts Using a Non-integrative System in Feeder-free Conditions
    Authors:  Alvaro A. Beltran, Sarahi G. Molina and Adriana S. Beltran, date: 10/20/2020, view: 156, Q&A: 0
    Induced pluripotent stem cells (iPSCs) are genetically reprogrammed somatic cells that exhibit features identical to those of embryonic stem cells (ESCs). Multiple approaches are available to derive iPSCs, among which the Sendai virus is the most ...
    Staining and Quantitative Analysis of Myelinating Oligodendrocytes in the Mouse Grey Matter
    Authors:  Matthew Swire and Charles ffrench-Constant, date: 10/20/2020, view: 156, Q&A: 0
    Oligodendrocytes generate distinct patterns of myelination throughout the CNS. Variations in myelination along axons may enable neurons to fine-tune conduction velocities and alter signal synchronisation. Here we outline a staining protocol ...
    Live-cell Imaging and Quantitative Analysis of Meiotic Divisions in Caenorhabditis elegans Males
    Authors:  Gunar Fabig, Falko Löffler, Christian Götze and Thomas Müller-Reichert, date: 10/20/2020, view: 179, Q&A: 0
    [Abstract] Live-imaging of meiotic cell division has been performed in extracted spermatocytes of a number of species using phase-contrast microscopy. For the nematode Caenorhabditis elegans, removal of spermatocytes from gonads has damaging effects, as most of the extracted spermatocytes show a high variability in the timing of meiotic divisions or ...
    Acidified Blue Ink-staining Procedure for the Observation of Fungal Structures Inside Roots of Two Disparate Plant Lineages
    Authors:  Jill Kowal, Elena Arrigoni and Sophie Lane, date: 10/20/2020, view: 170, Q&A: 0
    [Abstract] Identifying microscopic mycorrhizal fungal structures in roots, i.e., hyphae, vesicles and arbuscules, requires root staining procedures that are often time consuming and involves chemicals known to present health risks from exposure. By modifying established protocols, our root staining method stains roots using a safe ink- and ...
    Real-time Three-dimensional Tracking of Endocytic Vesicles
    Authors:  Stephanie Duhamel and Kossay Zaoui, date: 10/20/2020, view: 226, Q&A: 0
    [Abstract] Endocytic trafficking and recycling are fundamental cellular processes that control essential functions such as signaling protein complexes transport and membrane identity. The small GTPase Rabs are indispensable component of the endosomal recycling machinery. The Rabs bind to effectors to mediate their functions, such as protein sorting and ...
    Derivation of Induced Pluripotent Stem Cells from Human Fibroblasts Using a Non-integrative System in Feeder-free Conditions
    Authors:  Alvaro A. Beltran, Sarahi G. Molina and Adriana S. Beltran, date: 10/20/2020, view: 156, Q&A: 0
    [Abstract] Induced pluripotent stem cells (iPSCs) are genetically reprogrammed somatic cells that exhibit features identical to those of embryonic stem cells (ESCs). Multiple approaches are available to derive iPSCs, among which the Sendai virus is the most effective at reprogramming different cell types. Here we describe a rapid, efficient, safe, and ...
    Staining and Quantitative Analysis of Myelinating Oligodendrocytes in the Mouse Grey Matter
    Authors:  Matthew Swire and Charles ffrench-Constant, date: 10/20/2020, view: 156, Q&A: 0
    [Abstract] Oligodendrocytes generate distinct patterns of myelination throughout the CNS. Variations in myelination along axons may enable neurons to fine-tune conduction velocities and alter signal synchronisation. Here we outline a staining protocol permitting the assessment of the number and length of myelin sheaths formed by oligodendrocyte in the mouse ...
    Multitarget Immunohistochemistry for Confocal and Super-resolution Imaging of Plant Cell Wall Polysaccharides
    Authors:  Kalina T. Haas, Methieu Rivière, Raymond Wightman and Alexis Peaucelle, date: 10/05/2020, view: 569, Q&A: 0
    [Abstract] The plant cell wall (PCW) is a pecto-cellulosic extracellular matrix that envelopes the plant cell. By integrating extra-and intra-cellular cues, PCW mediates a plethora of essential physiological functions. Notably, it permits controlled and oriented tissue growth by tuning its local mechano-chemical properties. To refine our knowledge of these ...
    Affinity Purification of GO-Matryoshka Biosensors from E. coli for Quantitative Ratiometric Fluorescence Analyses
    [Abstract] Genetically encoded biosensors are powerful tools for quantitative visualization of ions and metabolites in vivo. Design and optimization of such biosensors typically require analyses of large numbers of variants. Sensor properties determined in vitro such as substrate specificity, affinity, response range, dynamic range, and ...
    Fluorescence Measurement and Calibration of Intracellular pH in Starfish Oocytes
    Authors:  Enako Hosoda and Kazuyoshi Chiba, date: 10/05/2020, view: 223, Q&A: 0
    [Abstract] Oocyte maturation is a process wherein an oocyte arrested at prophase of meiosis I resumes meiosis to become a fertilizable egg. In starfish ovaries, a hormone released from follicle cells activates the oocytes, resulting in an increase in their intracellular pH (pHi), which is required for spindle assembly. Herein, we describe a ...
    Assembly and Imaging Set up of PIE-Scope
    [Abstract] Cryo-Electron Tomography (cryo-ET) is a method that enables resolving the structure of macromolecular complexes directly in the cellular environment. However, sample preparation for in situ Cryo-ET is labour-intensive and can require both cryo-lamella preparation through cryo-Focused Ion Beam (FIB) milling and correlative light microscopy ...
    A Novel and Robust Single-cell Trapping Method on Digital Microfluidics
    [Abstract] Due to cell heterogeneity, the differences among individual cells are averaged out in bulk analysis methods, especially in the analysis of primary tumor biopsy samples from patients. To deeply understand the cell-to-cell variation in a primary tumor, single-cell culture and analysis with limited amount of cells are in high demand. Microfluidics ...



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