siRNA / miRNA gene silencing Human HT-29

Get tips on using GeneJET Plasmid Miniprep Kit to perform Plasmid Isolation Bacillus smithii

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 GeneRead DNA FFPE Kit to perform DNA isolation / purification Tissue - FFPE samples

Get tips on using GenElute™ Plasmid Miniprep Kit to perform Plasmid Isolation S. cerevisiae

Get tips on using GenElute™ Mammalian Total RNA Miniprep Kit to perform

Get tips on using GenePrint® 10 System to perform Cell line authentication MCF-7 cell line

Get tips on using CM-H2DCFDA (General Oxidative Stress Indicator) to perform ROS assay cell type - PC12

Get tips on using CM-H2DCFDA (General Oxidative Stress Indicator) to perform ROS assay cell type - T47D

Get tips on using GeneJuice® Transfection Reagent to perform DNA transfection Mammalian cells - Immortalized cell lines 3T3-L1

Get tips on using CM-H2DCFDA (General Oxidative Stress Indicator) to perform ROS assay cell type - CHO-K1