DNA Damage Assay Human bronchial epithelial cells (hBE)

Cell cytotoxicity assays measure the ability of certain compounds or chemical mediators to reduce the viability of the cells. The term cell cytotoxicity assay can sometimes be used interchangeably with cell proliferation assay. Healthy living cells can be identified by the use of formazan dyes, protease biomarkers or by measuring ATP content. The formazan dyes are chromogenic products formed by the reduction of tetrazolium salts by dehydrogenases, such as lactate dehydrogenase (LDH) and reductases that are released during cell death. Common tetrazolium salts include INT, MTT, MTS and XTT. Cell cytotoxicity can also be measured by using the SRB and WST-1 assays. These assays can usually be used in a high-throughput fashion and can be quantitated by measuring absorbance, colorimetry or luminescence. All these assays require similar numbers of cell plating at the initiation, a time course of treatment with the cytotoxic agent and at least triplicates for each condition at every point of analysis. Cell shrinkage, plasma membrane blebbing, cell detachment, externalization of phosphatidylserine, nuclear condensation and ultimately DNA fragmentation are well-described features of apoptosis. The assays that rely on cell membrane integrity for their function, may not be able to quantify early apoptosis. Therefore, in order to distinguish early apoptotic vs. late apoptotic or necrotic cells, additional flow cytometry techniques can be used. A combination of Annexin V and PI (propidium iodide) can be used to distinguish early (Annexin V+/PI-) and late apoptotic (Annexin V+/PI+) cells. Sometimes, caspase assays are used in order to differentiate the stages of apoptosis.

Get tips on using MTT Assay solution to perform Cell cytotoxicity / Proliferation assay cell type - adipose stem cells

Get tips on using Live-Dead Cell Staining Kit (BioVision) to perform Live / Dead assay mammalian cells - MDA-MB-231 human breast cancer cells

Get tips on using LIVE/DEAD™ Cell Imaging Kit to perform Live / Dead assay mammalian cells - MDA-MB-231 human breast cancer cells

Get tips on using psiCHECK-2vector to perform Reporter gene assay luciferase - HEK 293 human embryonic kidney cells

Get tips on using OxiSelect™ Intracellular ROS Assay Kit (Green Fluorescence) to perform ROS assay cell type - SH-SY5Y human neuroblastoma

Get tips on using EpiTect Plus DNA Bisulfite Kit to perform Bisulfite DNA Modification Cell lines / primary cells

Get tips on using QIAamp DNA Blood Mini Kit to perform DNA isolation / purification Cells - Immortalized cell lines HEK 293T

Get tips on using CellTiter-Glo® Luminescent Cell Viability Assay to perform Live / Dead assay mammalian cells - H9C2

Get tips on using CellTiter-Glo® Luminescent Cell Viability Assay to perform Live / Dead assay mammalian cells - MMQ