Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comment
. 2016 Jun;5(3):338-42.
doi: 10.21037/tlcr.2016.05.01.

Digital detection of T790M-yes or no to an ultrasensitive assay

Affiliations
Comment

Digital detection of T790M-yes or no to an ultrasensitive assay

Wei Wang et al. Transl Lung Cancer Res. 2016 Jun.
No abstract available

PubMed Disclaimer

Conflict of interest statement

Conflicts of Interest: The authors have no conflicts of interest to declare.

Figures

Figure 1
Figure 1
Simple schematic of digital PCR. Sample DNA is diluted, to on average less than a haploid genome per microdroplet prior to the PCR. Each microdroplet contains the reagents required for the PCR reaction and the mutant and wild type probes which are labelled with different fluorophores. The PCR reaction is performed in the standard way and each droplet then tested using laser excitation for the presence or absence of the target DNA locus. In this case the rare variant T790M is represented in red and is present in only one microdroplet, while the wild type allele is present in the majority of microdroplets. A simple (and software automated) mathematical transformation is performed to estimate the mutant allele frequency (MAF) of T790M. EGFR, epidermal growth factor receptor.

Comment on

References

    1. Chong CR, Jänne PA. The quest to overcome resistance to EGFR-targeted therapies in cancer. Nat Med 2013;19:1389-400. 10.1038/nm.3388 - DOI - PMC - PubMed
    1. Watanabe M, Kawaguchi T, Isa S, et al. Ultra-Sensitive Detection of the Pretreatment EGFR T790M Mutation in Non-Small Cell Lung Cancer Patients with an EGFR-Activating Mutation Using Droplet Digital PCR. Clin Cancer Res 2015;21:3552-60. 10.1158/1078-0432.CCR-14-2151 - DOI - PubMed
    1. Vogelstein B, Kinzler KW. Digital PCR. Proc Natl Acad Sci U S A 1999;96:9236-41. 10.1073/pnas.96.16.9236 - DOI - PMC - PubMed
    1. Day E, Dear PH, McCaughan F. Digital PCR strategies in the development and analysis of molecular biomarkers for personalized medicine. Methods 2013;59:101-7. 10.1016/j.ymeth.2012.08.001 - DOI - PubMed
    1. Ivey A, Hills RK, Simpson MA, et al. Assessment of Minimal Residual Disease in Standard-Risk AML. N Engl J Med 2016;374:422-33. 10.1056/NEJMoa1507471 - DOI - PubMed

LinkOut - more resources