TGR5 (GP-BAR1) Reporter Assay Kit Reference: 601440-96 Cayman's TGR5 (GP-BAR1) Reporter Assay Kit consists of a 96-well plate coated with a transfection complex containing DNA constructs for expressing TGR5 and a cAMP response element regulated secreted alkaline phosphatase (SEAP) reporter (TGR5 Reverse Transfection Strip Plate). Cells grown on the transfection complex will express TGR5 at the cell surface within 24 hours. Binding of agonists to TGR5 initiates a signal transduction cascade through the GαS and adenylate cyclase pathway resulting in the expression of SEAP which is secreted into the cell culture medium. Aliquots of culture medium are collected at 6-8 hours after stimulation, and SEAP activity is measured following the addition of a luminescence-based alkaline phosphatase substrate provided in the kit. The kit is easy to use and can be readily applied to high-throughput screening for therapeutic compounds regulating activation of TGR5. A selective synthetic agonist, the TGR5 Receptor Agonist (3-[2-chlorophenyl]-N-[4-chlorophenyl]-N,5-dimethyl-4-isoxazolecarboxamide), is included in the kit for use as a positive control.(27533) The kit provides sufficient reagent to measure SEAP activity at three time points using the three included white assay plates.
LDL Uptake Flow Cytometry Assay Kit Reference: 601470-48 Cayman’s LDL Uptake Flow Cytometry Assay Kit employs human LDL conjugated to DyLight™ 488 as a convenient tool for studying the uptake of LDL in cultured cells. Flow cytometry provides the advantage of assessing the uptake of LDL at the single-cell level. In addition, multiplexing with other markers, such as LDLR expression, is possible to gain more information from a single experiment. Lovastatin is included in this kit as a control modulator of LDL uptake by hepatocytes. The reagents provided in this kit are sufficient to test 48 samples by FC.
Phagocytosis Assay Kit (IgG-DyLight™ 405) Reference: 601480-1 Cayman’s Phagocytosis Assay Kit (IgG-DyLight™ 405) employs latex beads coated with fluorescently-labeled rabbit IgG as a probe for the measurement of the phagocytic process in vitro. The engulfed fluorescent beads can be detected using a fluorescence microscope, allowing kinetic studies of phagocytosis at the single-cell level. In addition, the flow cytometric readout provides the advantage of visualizing perturbations in phagocytosis on the population level and, when combined with antibody staining, of specific cell types within complex populations. This kit provides enough Latex Beads-Rabbit IgG-DyLight™ 405 Complex for up to 500 samples.