Cell Biology

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    Protocols in Current Issue
    Expansion of Airway Basal Cells and Generation of Polarized Epithelium
    Authors:  Hannah Levardon, Lael M. Yonker, Bryan P. Hurley and Hongmei Mou, date: 06/05/2018, view: 2950, Q&A: 1
    [Abstract] Airway basal stem cells are the progenitor cells within the airway that exhibit the capacity to self-renew and give rise to multiple types of differentiated airway epithelial cells. This stem cell-derived epithelium displays organized architecture with functional attributes of the airway mucosa. A protocol has been developed to culture and expand ...
    Microbial Mutagenicity Assay: Ames Test
    Authors:  Urvashi Vijay, Sonal Gupta, Priyanka Mathur, Prashanth Suravajhala and Pradeep Bhatnagar, date: 03/20/2018, view: 10621, Q&A: 2
    [Abstract] The Microbial mutagenicity Ames test is a bacterial bioassay accomplished in vitro to evaluate the mutagenicity of various environmental carcinogens and toxins. While Ames test is used to identify the revert mutations which are present in strains, it can also be used to detect the mutagenicity of environmental samples such as drugs, dyes, ...
    Preparation of Amyloid Fibril Networks
    Authors:  Mirren Charnley , Jay Gilbert, Owen G. Jones and Nicholas P. Reynolds, date: 02/20/2018, view: 2459, Q&A: 0
    [Abstract] Networks of amyloid nanofibrils fabricated from common globular proteins such as lysozyme and β-lactoglobulin have material properties that mimic the extracellular microenvironment of many cell types. Cells cultured on such amyloid fibril networks show improved attachment, spreading and in the case of mesenchymal stem cells improved ...
    A Bioreactor Method to Generate High-titer, Genetically Stable, Clinical-isolate Human Cytomegalovirus
    [Abstract] Human cytomegalovirus (HCMV) infection is a major cause of morbidity and mortality in transplant patients and a leading cause of congenital birth defects (Saint Louis, 2016). Vaccination and therapeutic studies often require scalable cell culture production of wild type virus, represented by clinical isolates. Obtaining sufficient stocks of ...
    Preparation of Primary Cultures of Embryonic Rat Hippocampal and Cerebrocortical Neurons
    [Abstract] This protocol aims at standardizing the procedure to obtain primary cultures of hippocampal and cerebrocortical neurons for in vitro experiments. Cultures should be prepared from cells isolated during embryonic development when neuronal precursor cells are not yet fully differentiated. This helps increasing the quality and quantity of ...
    Exit from Pluripotency Assay of Mouse Embryonic Stem Cells
    Authors:  Daniel Cirera-Salinas and Constance Ciaudo, date: 08/20/2017, view: 4079, Q&A: 0
    [Abstract] A novel method to assess the dissolution of the core pluripotency transcription-factor circuit of mouse Embryonic Stem Cells (mESCs) has been developed (Ying et al., 2003; Betschinger et al., 2013). In order to efficiently identify genes essential for the break-down of the pluripotency network in mutant mESCs with proliferation ...
    Quantification of Chlorophyll as a Proxy for Biofilm Formation in the Cyanobacterium Synechococcus elongatus
    Authors:  Eleonora Sendersky, Ryan Simkovsky, Susan S. Golden and Rakefet Schwarz, date: 07/20/2017, view: 4253, Q&A: 0
    [Abstract] A self-suppression mechanism of biofilm development in the cyanobacterium Synechococcus elongatus PCC 7942 was recently reported. These studies required quantification of biofilms formed by mutants impaired in the biofilm-inhibitory process. Here we describe in detail the use of chlorophyll measurements as a proxy for biomass accumulation ...
    Culturing Bacteria from Caenorhabditis elegans Gut to Assess Colonization Proficiency
    [Abstract] Determining an accurate count of intestinal bacteria from Caenorhabditis elegans is one critical way to assess colonization proficiency by a given bacteria. This can be accomplished by culturing appropriate dilutions of worm gut bacteria on selective or differential agarized media. Because of the high concentration of bacteria in gut ...
    Isolation of Murine Alveolar Type II Epithelial Cells
    Authors:  Fan Sun, Gutian Xiao and Zhaoxia Qu, date: 05/20/2017, view: 5124, Q&A: 0
    [Abstract] We have optimized a protocol for isolation of alveolar type II epithelial cells from mouse lung. Lung cell suspensions are prepared by intratracheal instillation of dispase and agarose followed by mechanical disaggregation of the lungs. Alveolar type II epithelial cells are purified from these lung cell suspensions through magnetic-based negative ...
    Isolation and Cultivation of Primary Brain Endothelial Cells from Adult Mice
    [Abstract] Brain endothelial cells are the major building block of the blood-brain barrier. To study the role of brain endothelial cells in vitro, the isolation of primary cells is of critical value. Here, we describe a protocol in which vessel fragments are isolated from adult mice. After density centrifugation and mild digestion of the fragments, ...



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