Here, we present a protocol to detect tumor somatic mutations in circulating DNA present in patient biological fluids (biofluids). Our droplet digital polymerase chain reaction (dPCR)-based method enables quantification of the tumor mutation allelic frequency (MAF), facilitating a minimally invasive complement to diagnosis and temporal monitoring of tumor response.
Bonner, E. R., Saoud, K., Lee, S., Panditharatna, E., Kambhampati, M., Mueller, S., Nazarian, J. Detection and Monitoring of Tumor Associated Circulating DNA in Patient Biofluids. J. Vis. Exp. (148), e59721, doi:10.3791/59721 (2019).