Developmental Biology

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    Protocols in Current Issue
    Extraction and Quantification of Sphingolipids from Hemiptera Insects by Ultra-Performance Liquid Chromatography Coupled to Tandem Mass Spectrometry
    Authors:  Ni Wang, Xiaoxiao Shi, Chao Zhang, Wenwu Zhou and Zeng-Rong Zhu, date: 02/20/2021, view: 562, Q&A: 0
    [Abstract]

    Sphingolipids are major structural components of endomembranes and have also been described as an intracellular second messenger involved in various biological functions in all eukaryotes and a few prokaryotes. Ceramides (Cer), the central molecules of sphingolipids, have been depicted in cell growth arrest, cell differentiation, and apoptosis.

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    Induction of Epithelial-mesenchymal Transition in MDCK II Cells
    Authors:  Agnieszka Pastuła and Richard Lundmark, date: 02/05/2021, view: 283, Q&A: 0
    [Abstract]

    Epithelial-mesenchymal transition (EMT) is a reversible process of epithelial cell transdifferentiation into a mesenchymal cell, that enables initiation of cell migration. EMT plays an important role in embryonic development, tissue repair and cancer metastasis. Better understanding of cellular and molecular events during EMT will not only provide

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    Whole-mount Immunohistochemistry of Adult Zebrafish Retina for Advanced Imaging
    Authors:  Mikiko Nagashima and Peter F. Hitchcock, date: 12/20/2020, view: 793, Q&A: 0
    [Abstract]

    Immunohistochemistry is a widely used technique to examine the expression and subcellular localization of proteins. This technique relies on the specificity of antibodies and requires adequate penetration of antibodies into tissues. The latter is especially challenging for thick specimens, such as embryos and other whole-mount preparations. Here

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    Use of Optogenetic Amyloid-β to Monitor Protein Aggregation in Drosophila melanogaster, Danio rerio and Caenorhabditis elegans
    [Abstract]

    Alzheimer’s Disease (AD) has long been associated with accumulation of extracellular amyloid plaques (Aβ) originating from the Amyloid Precursor Protein. Plaques have, however, been discovered in healthy individuals and not all AD brains show plaques, suggesting that extracellular Aβ aggregates may play a smaller role than

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    In vitro Time-lapse Imaging of Primary Cilium in Migrating Neuroblasts
    [Abstract] Neuronal migration is a critical step for the development of neuronal circuits in the brain. Immature new neurons (neuroblasts) generated in the postnatal ventricular-subventricular zone (V-SVZ) show a remarkable potential to migrate for a long distance at a high speed in the postnatal mammalian brain, and are thus a powerful model to analyze the ...
    DigiTAG–a RNA Sequencing Approach to Analyze Transcriptomes of Rare Cell Populations in Drosophila melanogaster
    Authors:  Lisa Landskron, Francois Bonnay, Thomas R. Burkard and Jürgen A. Knoblich, date: 11/05/2020, view: 880, Q&A: 0
    [Abstract]

    Cell-type specific transcriptional programs underlie the development and maintenance of organs. Not only distinct cell types within a tissue, even cells with supposedly identical cell fates show a high degree of transcriptional heterogeneity. Inevitable, low cell numbers are a major hurdle to study transcriptomes of pure cell populations. Here we

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    Fluorescence Measurement and Calibration of Intracellular pH in Starfish Oocytes
    Authors:  Enako Hosoda and Kazuyoshi Chiba, date: 10/05/2020, view: 680, 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 ...
    Probe-Seq: Method for RNA Sequencing of Specific Cell Types from Animal Tissue
    [Abstract] Most organs and tissues are composed of many types of cells. To characterize cellular state, various transcription profiling approaches are currently available, including whole-tissue bulk RNA sequencing, single cell RNA sequencing (scRNA-Seq), and cell type-specific RNA sequencing. What is missing in this repertoire is a simple, versatile method ...
    Fluorescent Polysome Profiling in Caenorhabditis elegans
    Authors:  Dan Shaffer and Jarod A Rollins, date: 09/05/2020, view: 1423, Q&A: 0
    [Abstract] An important but often overlooked aspect of gene regulation occurs at the level of protein translation. Many genes are regulated not only by transcription but by their propensity to be recruited to actively translating ribosomes (polysomes). Polysome profiling allows for the separation of unbound 40S and 60S subunits, 80S monosomes, and actively ...
    Isolation, Culture, and Differentiation of Primary Myoblasts Derived from Muscle Satellite Cells
    Authors:  Kun Ho Kim, Jiamin Qiu and Shihuan Kuang, date: 07/20/2020, view: 1850, Q&A: 0
    [Abstract] The skeletal muscle is key for body mobility and motor performance, but aging and diseases often lead to progressive loss of muscle mass due to wasting or degeneration of muscle cells. Muscle satellite cells (MuSCs) represent a population of tissue stem cells residing in the skeletal muscles and are responsible for homeostatic maintenance and ...



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