Electrochemical chip-based genomagnetic assay for detection of high-risk human papillomavirus DNA

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Publikace nespadá pod Ústav výpočetní techniky, ale pod Lékařskou fakultu. Oficiální stránka publikace je na webu muni.cz.
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BARTOSIK M. DURIKOVA H. VOJTESEK B. ANTON Milan JANDÁKOVÁ Eva HRSTKA R.

Rok publikování 2016
Druh Článek v odborném periodiku
Časopis / Zdroj BIOSENSORS & BIOELECTRONICS
Fakulta / Pracoviště MU

Lékařská fakulta

Citace
www https://www.sciencedirect.com/science/article/pii/S0956566316303098?via%3Dihub
Doi http://dx.doi.org/10.1016/j.bios.2016.04.035
Klíčová slova HPV; Cervical cancer; Electrochemical detection; Electrode chip; Magnetic beads
Popis Cervical cancer, being the fourth leading cause of cancer death in women worldwide, predominantly originates from a persistent infection with a high-risk human papillomavirus (HPV). Detection of DNA sequences from these high-risk strains, mostly HPV-16 and HPV-18, represents promising strategy for early screening, which would help to identify women with higher risk of cervical cancer. In developing countries, inadequate screening options lead to disproportionately high mortality rates, making a fast and inexpensive detection schemes highly important. Electrochemical sensors and assays offer an alternative to current methods of detection. We developed an electrochemical-chip based assay, in which target HPV DNA is captured via magnetic bead-modified DNA probes, followed by an antidigoxigenin-peroxidase detection system at screen-printed carbon electrode chips, enabling parallel measurements of eight samples simultaneously. We show sensitive detection in attomoles of HPV DNA, selective discrimination between HPV-16 and HPV-18 and good reproducibility. Most importantly, we show application of the assay into both cancer cell lines and cervical smears from patients. The electrochemical results correlated well with standard methods, making this assay potentially applicable in clinical practice. (C) 2016 Elsevier B.V. All rights reserved.
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