Cell Biology

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    Protocols in Current Issue
    In vivo Blood-brain Barrier Permeability Assays Using Clostridium perfringens Epsilon Toxin
    Authors:  Michael R. Mazzucco, Timothy Vartanian and Jennifer R. Linden, date: 08/05/2020, view: 71, Q&A: 0
    [Abstract] In order for the brain to function properly, a carefully orchestrated homeostasis must be maintained. To help regulate this delicate balance, the brain has developed a highly selective blood-brain barrier (BBB). Under normal conditions, the BBB excludes harmful blood-borne material from the brain parenchyma. However, numerous neuropathological ...
    Mechanical Tissue Compression and Whole-mount Imaging at Single Cell Resolution for Developing Murine Epididymal Tubules
    Author:  Tsuyoshi Hirashima, date: 08/05/2020, view: 186, Q&A: 0
    [Abstract] Cells inside the body are subjected to various mechanical stress, such as stretch or compression provided by surrounding cells, shear stresses by blood or lymph flows, and normal stresses by luminal liquids. Force loading to the biological tissues is a fundamental method to better understand cellular responses to such mechanical stimuli. There ...
    Development of the Deoxycorticosterone Acetate (DOCA)-salt Hypertensive Rat Model
    Authors:  Nayara Pestana-Oliveira, David B. Nahey, Tim Johnson and John P. Collister, date: 08/05/2020, view: 79, Q&A: 0
    [Abstract] According to the World Health Organization (WHO), nearly 1.13 billion people worldwide have hypertension, a major factor responsible for premature death globally. The inherent multifactorial nature of hypertension makes its study difficult since the chronic rise in blood pressure depends on the intricate connection between dietary, genetic ...
    Method for Prolonged Incubation of Brain Slices
    Authors:  Orsolya Kekesi and Yossi Buskila, date: 07/20/2020, view: 236, Q&A: 0
    [Abstract] Slices of neuronal tissue maintain a high degree of topographical and functional properties of neurons and glia and therefore are extensively used for measurements of neuronal activity at the molecular, cellular and network levels. However, the lifespan of slice preparations is narrow, averaging of 6-8 hours. Moreover, the average viability of ...
    Analysis of Generalized Fibrosis in Mouse Tissue Sections with Masson’s Trichrome Staining
    Authors:  Diantha van de Vlekkert, Eda Machado and Alessandra d’Azzo, date: 05/20/2020, view: 831, Q&A: 0
    [Abstract] Expansion of fibrous connective tissue and abnormal deposition of extracellular matrix (ECM) are at the basis of many fibrotic diseases. Fibrosis can occur in response to both physiological and pathological cues, including wound healing, tissue remodeling/repair and inflammation. Chronic fibrosis can lead to severe tissue damage, organ failure and ...
    Application of Mechanical Forces on Drosophila Embryos by Manipulation of Microinjected Magnetic Particles
    Authors:  Arturo D’Angelo and Jérôme Solon, date: 05/05/2020, view: 743, Q&A: 0
    [Abstract] Cells generate mechanical forces to shape tissues during morphogenesis. These forces can activate several biochemical pathways and trigger diverse cellular responses by mechano-sensation, such as differentiation, division, migration and apoptosis. Assessing the mechano-responses of cells in living organisms requires tools to apply controlled local ...
    Method for Measuring Mucociliary Clearance and Cilia-generated Flow in Mice by ex vivo Imaging
    Authors:  Eric Song and Akiko Iwasaki, date: 03/20/2020, view: 873, Q&A: 0
    [Abstract] Ex vivo biophysical measurements provide valuable insights into understanding both physiological and pathogenic processes. One critical physiological mechanism that is regulated by these biophysical properties is cilia-generated flow that mediates mucociliary clearance, which is known to provide protection against foreign particles and ...
    Testing Bone Formation Induction by Calvarial Injection Assay in vivo
    Authors:  Narelle E McGregor, Ingrid J Poulton, Emma C Walker and Natalie A Sims, date: 03/20/2020, view: 1070, Q&A: 0
    [Abstract] Bone formation occurs during embryogenesis, skeletal growth and during the process of skeletal renewal throughout life. In the process of bone formation, osteoblasts lay down a collagen-containing matrix, termed osteoid, which is gradually hardened by incorporation of mineral crystals. Although osteoblasts can be induced to differentiate and to ...
    Preparation of Single Epithelial Cells Suspension from Mouse Mammary Glands
    Authors:  Heng Sun, Xiaoling Xu and Chuxia Deng, date: 02/20/2020, view: 1235, Q&A: 0
    [Abstract] Single cell RNA sequencing is a very powerful means for cellular heterogeneous studies and so becoming wildly utilized nowadays. To guarantee the success of such analysis, it is very important, though sometimes difficult, to obtain single cells suspension with high quality, especially from the primary solid organs like mammary glands. Digestion of ...
    Bone-in-culture Array to Model Bone Metastasis in ex vivo Condition
    Authors:  Hai Wang and Xiang H.-F. Zhang, date: 01/20/2020, view: 1136, Q&A: 0
    [Abstract] Bone is the most frequently affected organ by metastases of breast cancer and prostate cancer. Our knowledge on bone metastasis is extremely limited due to the lack of potent and efficient experimental models. We developed the “Bone-In-Culture Array (BICA)” platform to model the bone colonization of cancer cells in ex vivo cultures. The ...



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