Cell cytotoxicity / Proliferation assay

Get tips on using CellTiter-Glo® Luminescent Cell Viability Assay to perform Live / Dead assay mammalian cells - MC3T3

Get tips on using Oris™ Cell Migration Assay - Fibronectin Coated to perform Wound healing assay cell type - human Caco-2

Get tips on using CellTiter-Glo® Luminescent Cell Viability Assay to perform Live / Dead assay mammalian cells - BHK-21

An alternative to culture-based cell death detection is an assessment of other cell viability indicators using fluorescent dyes, including membrane potential and membrane integrity. Live/Dead assays differentiates live and dead cells using membrane integrity as a proxy for cell viability and are based on a fluorescent staining procedure followed by detection using flow cytometry. However, samples preparation for such flow cytometry-based techniques could be challenging. Cell harvesting by trypsinization, mechanical or enzymatic cell disaggregation from tissues, extensive centrifugation steps, may all lead to preferential loss of apoptotic cells. To overcome this strictly follow manufacturers instruction of the detection kit.

Get tips on using Cultrex® Collagen IV Cell Invasion Assay to perform Cell migration / Invasion cell type - TPC1

Get tips on using RealTime-Glo™ MT Cell Viability Assay to perform Live / Dead assay mammalian cells - HepG2

Get tips on using RealTime-Glo™ MT Cell Viability Assay to perform Live / Dead assay mammalian cells - A549

Get tips on using RealTime-Glo™ MT Cell Viability Assay to perform Live / Dead assay mammalian cells - K562

TUNEL assay is the cell death detection method where the biochemical marker of apoptosis is DNA fragmentation. The assay involves the microscopical detection of generated DNA fragments with free 3'-hydroxyl residues. in apoptotic cells using enzyme terminal deoxynucleotidyl transferase (TdT) which adds biotinylated nucleotides at the site of DNA breaks. Major challenges of this method involve proper access of the enzyme which could be hampered by poor permeabilization and/or excessive fixation with cross-linking fixative (common with archival tissue). This issue can be resolved by optimizing the incubation time with Proteinase K or CytoninTM.

TUNEL assay is the cell death detection method where the biochemical marker of apoptosis is DNA fragmentation. The assay involves the microscopical detection of generated DNA fragments with free 3'-hydroxyl residues. in apoptotic cells using enzyme terminal deoxynucleotidyl transferase (TdT) which adds biotinylated nucleotides at the site of DNA breaks. Major challenges of this method involve proper access of the enzyme which could be hampered by poor permeabilization and/or excessive fixation with cross-linking fixative (common with archival tissue). This issue can be resolved by optimizing the incubation time with Proteinase K or CytoninTM.