Donor-derived cell-free DNA (dd-cfDNA) is used as a biomarker to assess organ health and rejection risk status
dd-cfDNA has a very short half life (30 minutes – 2 hours) and elevations can be detected almost immediately1
The use of dd-cfDNA as a tool for transplant monitoring is well established in over 60 publications across multiple transplant types
GraftAssure TM is a dd-cfDNA test that uses droplet digital PCR (dPCR) technology to measure the concentration of dd-cfDNA using 48 predefined SNPs with high minor allele population frequency. The kit enables the determination of both fractional (%) and absolute (copies/mL) concentration of dd-cfDNA for a comprehensive understanding of the amount of dd-cfDNA in the sample.
Highlights & Advantages of GraftAssure
One workflow for any sample
Generate dd-cfDNA results using both fractional abundance (%) and absolute concentration (cp/mL)
In-house testing generates quick results
dPCR is a cost-effective way to quantify dd-cfDNA
Low sample input volume required
Conduct high quality research on dd-cfDNA applications in your own lab
Average hands-on time < 30 minutes
Simple and Consistent Workflow
Centrifuge blood tubes and collect plasma
30 minutes*
DNA extraction
20 minutes
Preamplification
40 minutes
Digital PCR
3-7 hours
Results available
4-8 hours*
Kit Specifications
Up to 24 samples may be analyzed per kit
All kit components are lyophilized to maximize reagent stability and enable easy transportation and storage of materials
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REFERENCES 1. Oellerich M, Sherwood K, Keown P, et al. (2021). Liquid biopsies: donor-derived cell-free DNA for the detection of kidney allograft injury. Nat Rev Nephrol 17(9):591.