Applied Biosystems™ PureQuant™ Th17 Assay
On demandApplied Biosystems™ PureQuant™ Th17 Assay
The Applied Biosystems PureQuant assays are a family of assays that accurately identify and quantify specific immune cell types in a mixed population of cells. These assays are TaqMan qPCR-based and measure genomic DNA methylation at specific sites that serve as a unique identifier. The assays include standards and controls and each 96-well plate can accommodate up to seven test samples. Results are provided as a percentage of target cell type out of total input cells using a free analysis tool.
PureQuant Th17 Assay utilizes a specific demethylated site in the pro-inflammatory cytokine interleukin 17A (IL17). This cytokine is exclusively produced by T helper 17 cells.
Features
- Proven performance―core technology has been used for identification and quantification of immune cell types for over a decade
- Easily standardized―qPCR method enables consistent results across multiple users, instruments, and sites
- Facilitates regulatory filings―established performance specifications following ICHQ2(R1) guidelines
- Scheduling flexibility―assay can be performed using fresh or frozen cells/gDNA
The assays include all reagents, standards, and controls required to run the assay. Specific components include:
- Calibrator: corrects for variation in bisulfite conversion efficiency. Plasmid-based calibrator harbors the genomic target regions in equimolar ratios and includes GAPDH. Subjected to bisulfite conversion followed by copy number estimation via qPCR standard curve. Allows estimation of assay-specific bisulfite efficiency factor: the ratio between TpG/GAPDH copy numbers measured from the same plasmid.
- Reference: checks assay performance. Consists of genomic DNA extracted from human blood of pooled healthy donors. The reference values represent the expected range of the target cell type. For example, CD8+ cells are generally more abundant than Treg or Th17 cells.
- Standards: determine the unknown copy number. Consist of six dilutions spanning 4-log linear dynamic range (30-31250 copies). Absolute copy numbers can reliably be determined using the slope and intercept of the respective standard curves.
Content
- Dynabeads SILANE Genomic DNA Kit, store at 2°C to 8°CC
- 1 x 2 mL PureQuant qPCR Master Mix, store at 2°C to 8°CC
- 4 x ABS
- THFA, store at room temperature
- PureQuant Th17 Module, store at -15 to -25°C (CpG & TpG TaqMan primers and probes, Reference DNA, Lambda DNA, Standard DNA)
- PureQuant Hot Start PCR
- PureQuant Pre-amplification primer
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