Miniaturized Real-Time PCR on a Q3 System for Rapid KRAS Genotyping

Sensors (Basel). 2017 Apr 11;17(4):831. doi: 10.3390/s17040831.

Abstract

Colorectal cancer (CRC) is an aggressive human malignancy with a complex genomic landscape harboring KRAS mutations. In 40%-60% of patients with CRC, constantly active KRAS proteins affect the prognosis, surgical strategy, and clinical benefit from therapy with anti-epidermal growth factor receptor (EGFR) agents. For this reason, there is a greater demand for minimally-invasive diagnostic devices to characterize the genetic pattern and prevent the acquired mechanism to drug resistance. The rapid developments in cutting-edge diagnostic techniques are expected to play a growing role in medicine and represent an attractive promise to identify potential responders to personalized medicine. Here we propose a new method to simultaneously detect the main KRAS mutations on the portable real-time PCR Q3 platform. This platform is based on hybrid silicon-plastic technology implemented in a miniaturized chip able to achieve a sample-in answer-out rapid analysis, allowing a new approach to genetic counseling and testing.

Keywords: Genome-based test; colorectal cancer; diagnostics; qPCR.

MeSH terms

  • Antineoplastic Agents
  • Colorectal Neoplasms
  • ErbB Receptors
  • Genotype
  • Humans
  • Mutation
  • Proto-Oncogene Proteins p21(ras)
  • Real-Time Polymerase Chain Reaction*

Substances

  • Antineoplastic Agents
  • KRAS protein, human
  • EGFR protein, human
  • ErbB Receptors
  • Proto-Oncogene Proteins p21(ras)