Cell Biology

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    Protocols in Current Issue
    A Flow Cytometric Method to Determine Transfection Efficiency
    [Abstract] Mammalian cell transfection is a powerful technique commonly used in molecular biology to express exogenous DNA or RNA in cells and study gene and protein function. Although several transfection strategies have been developed, there is a wide variation with regards to transfection efficiency, cell toxicity and reproducibility. Thus, a sensitive ...
    Quantification of Serum Ovalbumin-specific Immunoglobulin E Titre via in vivo Passive Cutaneous Anaphylaxis Assay
    [Abstract] Murine models of allergic airway disease are frequently used as a tool to elucidate the cellular and molecular mechanisms of tissue-specific asthmatic disease pathogenesis. Paramount to the success of these models is the induction of experimental antigen sensitization, as indicated by the presence of antigen-specific serum immunoglobulin E. The ...
    Determination of Cellular Uptake and Endocytic Pathways
    Authors:  Jing Gong, Hong-Xia Wang and Kam W. Leong, date: 02/20/2019, view: 1220, 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 ...
    Click Chemistry (CuAAC) and Detection of Tagged de novo Synthesized Proteins in Drosophila
    [Abstract] Copper-catalyzed azide-alkyne-cycloaddition (CuAAC), also known as ‘click chemistry’ serves as a technique for bio-orthogonal, that is, bio-compatible labeling of macromolecules including proteins or lipids. Click chemistry has been widely used to covalently, selectively, and efficiently attach probes such as fluorophores or biotin to small ...
    Intracellular Invasion and Killing Assay to Investigate the Effects of Binge Alcohol Toxicity in Murine Alveolar Macrophages
    Authors:  Victor Jimenez Jr and Fernando P Monroy, date: 01/20/2019, view: 838, Q&A: 0
    [Abstract] Alcohol consumption has diverse and well-documented effects on the human immune system and its ability to defend against infective agents. While pulmonary related infections can occur in healthy humans, binge alcohol use is recognized as a major health risk factor (Nelson et al., 1991). Although binge alcohol consumption has been ...
    Heterochronic Phenotype Analysis of Hypodermal Seam Cells in Caenorhabditis elegans
    Authors:  Yon Ju Ji and Jiou Wang, date: 01/05/2019, view: 1030, Q&A: 0
    [Abstract] Heterochrony refers to changes in the timing of developmental events, and it is precisely regulated in the organisms by the heterochronic genes such as C. elegans lin-4 and let-7. Mutations in these genes cause precocious or retarded development of certain cell lineages. With well-defined cell lineages, C. elegans ...
    Adoptive Transfer of Monocytes Sorted from Bone Marrow
    Authors:  Damya Laoui, Eva Van Overmeire, Chloé Abels, Jiri Keirsse and Jo A Van Ginderachter, date: 01/05/2019, view: 1243, Q&A: 0
    [Abstract] Inflammatory Ly6Chi monocytes can give rise to distinct mononuclear myeloid cells in the tumor microenvironment, such as monocytic myeloid-derived suppressor cells (Mo-MDSC), immature macrophages, M2-like tumor-associated macrophages (TAMs), M1-like TAMs or monocyte-derived dendritic cells (Mo-DCs). This protocol describes a method to ...
    Variable Dose Analysis: A Novel High-throughput RNAi Screening Method for Drosophila Cells
    Authors:  Katarzyna Sierzputowska, Chris R. Baxter and Benjamin E. Housden, date: 12/20/2018, view: 928, Q&A: 0
    [Abstract] Genetic screens are a powerful approach to identify previously uncharacterized genes involved in specific biological processes. Several technologies have been developed for high-throughput screens using reagents such as RNAi or CRISPR, and each approach is associated with specific advantages and disadvantages. Variable Dose Analysis (VDA), is an ...
    Ultrasound Guided Intra-thymic Injection to Track Recent Thymic Emigrants and Investigate T Cell Development
    [Abstract] To track recent thymic emigrants (RTEs) or study T cell development in the thymus, intra-thymic injection of a cellular tag or precursor cells for various T cell lineages is often desired. However, the traditional surgical approach to expose the thymus for intra-thymic injection is time-consuming and can cause a high level of pain and stress to ...
    In-vivo gp100-specific Cytotoxic CD8+ T Cell Killing Assay
    Authors:  Mahdia Benkhoucha, Nicolas Molnarfi, Elodie Belnoue, Madiha Derouazi and Patrice H Lalive, date: 11/20/2018, view: 1358, Q&A: 0
    [Abstract] Cytotoxic CD8+ T lymphocytes (CTLs) represent a crucial component of the adaptive immune system and play a prominent role in the anti-tumor immune responses of both mice and humans.

    Cytotoxic CD8+ T cells are responsible for the lysis of cells expressing peptides associated with MHC class I molecules and derived ...



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