siRNA / miRNA gene silencing Human Capan-1

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 HiPerFect Transfection Reagent (100 ml) to perform siRNA / RNAi /miRNA transfection Bovine - monocyte-derived macrophages

Get tips on using HiPerFect Transfection Reagent to perform siRNA / RNAi /miRNA transfection Rat - AR42J Lipid based

Get tips on using CD133 (Prominin-1) Monoclonal Antibody (13A4), APC, eBioscience™ to perform Immunohistochemistry Mouse - CD133

Get tips on using TurboFect Transfection Reagents to perform siRNA / RNAi /miRNA transfection Rat - A-10 Cationic lipid based

Get tips on using HiPerFect Transfection Reagent to perform siRNA / RNAi /miRNA transfection Rat - A-10 Cationic lipid based

Get tips on using Galacto-Star™ β-Galactosidase Reporter Gene Assay System for Mammalian Cells to perform Reporter gene assay β-galactosidase substrates - MCF-7 human breast cancer

Get tips on using Mouse/Rat IGF-I/IGF-1 Quantikine ELISA Kit to perform ELISA Mouse - IGF-I

Get tips on using Mouse/Rat IGF-I/IGF-1 Quantikine ELISA Kit to perform ELISA Rat - IGF-I

Reporter gene assays enable high sensitivity measurement of gene expression and cell signaling through the addition of bioluminescent genes into target cells. One of the major challenges is to make a specific construct that has no responses other than those related to the signaling pathway of interest. This can be achieved by selecting highly specific reporter constructs containing only defined responsive elements and a minimal promoter linked to reporter enzymes such as luciferase