Citation

  • Authors: Ehrhardt, K., Guinn, M. T., Quarton, T., Zhang, M. Q., Bleris, L.
  • Year: 2015
  • Journal: Biosens Bioelectron 74 744-50
  • Applications: in vitro / DNA / jetPRIME
  • Cell type: HeLa
    Description: Human cervix epitheloid carcinoma cells

Abstract

Combinations of molecular signals such as transcription factors and microRNAs in cells are a reliable indicator of multi-gene disorders. A system capable of detecting these conditions in-situ may be used as a tool for diagnosis and monitoring of disease. Here, we engineer genetic circuits that sense endogenous levels of the androgen receptor (AR), the glucocorticoid receptor (GR), and the microRNA hsa-miR-21 (miR-21) in cervical cancer cells (HeLa). Furthermore, using the mediator molecule human chorionic gonadotropin (hCG), we interface the intracellular information to enzyme-linked immunosorbent assay (ELISA) test strips. We demonstrate that this hybrid genetic circuit and test-strip interface can accommodate combinatorial, low-cost, and in-situ reporting, a versatile profiling tool.

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