Cell death —Cell viability —Cell Biology

Photodynamic Therapy in a 3D Model of Ovarian Cancer

Authors: Shubhankar Nath and Kaitlin Moore, date: 08/05/2019, view: 2318, Q&A: 0

[Abstract] Photodynamic therapy (PDT), is a clinically-approved light-based anti-cancer treatment modality in which a photoactivatable photosensitizer is irradiated with an appropriate wavelength of light to generate cytotoxic molecules to kill cancer cells. In this article, we describe an in vitro PDT protocol using a 3-dimensional (3D) model of ...

Plaque Assay to Determine Invasion and Intercellular Dissemination of Shigella flexneri in TC7 Human Intestinal Epithelial Cells

Authors: Atin Sharma and Andrea Puhar, date: 07/05/2019, view: 2335, Q&A: 0

[Abstract] Shigella flexneri invades the epithelial cells lining the gut lumen and replicates intracellularly. The specialized Type III Secretion System (T3SS) and its effector proteins, encoded on a large virulence plasmid, assist the bacterium to gain access to the cytosol. Thereafter Shigella disseminates to neighboring cells in an ...

Isolation of Neural Stem Cells from the Embryonic Mouse Hippocampus for in vitro Growth or Engraftment into a Host Tissue

Authors: Oksana Rybachuk, Olga Kopach, Tetyana Pivneva and Vitaliy Kyryk, date: 02/20/2019, view: 4308, Q&A: 0

[Abstract] For both stem cell research and treatment of the central nervous system disorders, neural stem/progenitor cells (NSPCs) represent an important breakthrough tool. In the expanded stem cell-based therapy use, NSPCs not only provide a powerful cell source for neural cell replacement but a useful model for developmental biology research. Despite ...

Cell Microencapsulation and Cryopreservation with Low Molecular Weight Hyaluronan and Dimethyl Sulfoxide

Authors: H. Gurruchaga, L. Saenz del Burgo, G. Orive, R. M. Hernandez, J. Ciriza and J. L. Pedraz, date: 02/20/2019, view: 2951, Q&A: 0

[Abstract] Cryopreservation is commonly used for the storage of cells, tissues, organs or 3D cell-based products using ultra-low temperatures, which involves the immersion in liquid nitrogen for their long-term preservation. The cryopreservation of several microencapsulated cells is usually performed by the slow freezing with the dimethyl sulfoxide (DMSO) as ...

Evaluation of Anticancer activity of Silver Nanoparticles on the A549 Human Lung Carcinoma Cell Lines through Alamar Blue Assay

Authors: Nikita Sharma, Geeta Arya, R. Mankamna Kumari, Nidhi Gupta and Surendra Nimesh, date: 01/05/2019, view: 7561, Q&A: 0

[Abstract] Silver nanoparticles have been widely studied to possess antimicrobial as well as anticancer activity, and have found its applications in various fields including pharmaceutical industry, diagnostics, drug delivery, food industry, and others. For this purpose, several cell proliferation assays are widely used for the evaluation of anticancer ...

Monitoring Natural Killer Cell Function in Human Ovarian Cancer Cells of Ascitic Fluid

Authors: Vikash Kumar and Asok Mukhopadhyay, date: 12/20/2018, view: 3184, Q&A: 0

[Abstract] Natural killer (NK) cells are the major effectors of the innate immune system when activated resulting in modulation of immune response of the host defense through target cell lysis and secretion of cytokines. Precise functions of NK cells are essential for the treatment outcome of different virus infections and malignant diseases. NK cells impart ...

Detection of Cell Death in Planarians

Authors: Nídia de Sousa and Teresa Adell, date: 10/05/2018, view: 3795, Q&A: 0

[Abstract] Planarians are freshwater flatworms, well known for their ability to regenerate a complete organism from any piece of their body. Furthermore, planarians are constantly growing and degrowing throughout their lives, maintaining a functional and proportioned body. These properties rely on the presence of a population of adult stem cells and on the ...

An Image-based Assay for High-throughput Analysis of Cell Proliferation and Cell Death of Adherent Cells

Authors: Paula Szalai and Nikolai Engedal, date: 05/05/2018, view: 6126, Q&A: 0

[Abstract] In this protocol, we describe a method to monitor cell proliferation and death by live-cell imaging of propidium iodide (PI)-stained adherent mammalian cells. PI is widely used to assess cell death. However, it is usually used in end-point assays. Recently, we implemented the use of PI for real-time cell death assessment by automated imaging. ...

Quantification of Membrane Damage/Cell Death Using Evan’s Blue Staining Technique

Authors: Preethi Vijayaraghavareddy, Vanitha Adhinarayanreddy, Ramu S Vemanna, Sheshshayee Sreeman and Udayakumar Makarla , date: 08/20/2017, view: 13164, Q&A: 0

[Abstract] Membrane damage is a hallmark of both biotic and abiotic stress responses. The membrane determines the ability of a cell to sustain altered environmental conditions and hence can be used as a biomarker to assess stress-induced cell damage or death. We present an easy, quick, cost-effective, staining and spectrophotometric method to assess membrane ...

A Reliable Assay to Evaluate the Virulence of Aspergillus nidulans Using the Alternative Animal Model Galleria mellonella (Lepidoptera)

Authors: Caroline Mota Fernandes, Fernanda Lopes Fonseca, Gustavo Henrique Goldman, Marcos Dias Pereira and Eleonora Kurtenbach, date: 06/05/2017, view: 7268, Q&A: 0

[Abstract] The greater wax moth Galleria mellonella has emerged as an effective heterologous host to study fungal pathogenesis and the efficacy of promising antifungal drugs (Mylonakis et al., 2005; Li et al., 2013). Here, a methodology describing the Aspergillus nidulans infection in G. mellonella larvae, along ...

Cell Biology

Imaging of Human Cancer Cells in 3D Collagen Matrices

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