Electrochemical bioplatform for the determination of the most common and carcinogenic human papillomavirus DNA

Ozcelikay G., Gamella M., Solís-Fernández G., Barderas R., Pingarrón J. M., Campuzano S., ...More

Journal of Pharmaceutical and Biomedical Analysis, vol.231, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 231
  • Publication Date: 2023
  • Doi Number: 10.1016/j.jpba.2023.115411
  • Journal Name: Journal of Pharmaceutical and Biomedical Analysis
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Analytical Abstracts, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Chimica, EMBASE, International Pharmaceutical Abstracts, MEDLINE, Veterinary Science Database
  • Keywords: AbDNA-RNA, Electrochemical bioplatform, HPV16 DNA, Human cancer cells
  • Ankara University Affiliated: Yes

Abstract

Nucleic acid-based analytical bioplatforms have gained importance as diagnostic tests for genomics and as early detection tools for diseases such as cancer. In this context, we report the development of an amperometric bioplatform for the determination of a specific human papillomavirus type 16 (HPV16) sequence. The bioplatform utilizes an immune-nucleic acid hybrid-sandwich assay. A biotinylated RNA capture probe (RNAbCp), complementary to the selected HPV16 target DNA sequence, was immobilised on the surface of streptavidin coated magnetic microbeads (Strep-MBs). The RNA/DNA heteroduplex resulting from the hybridization of the RNAbCP and the HPV16 target sequence was recognised by a commercial antibody that specifically bound to the heteroduplex (AbDNA-RNA). A horseradish-peroxide labeled secondary antibody (antiIgG-HRP) was used for the detection of AbDNA-RNA. Relying on amperometric detection of the resulting HRP-labeled magnetic bioconjugates captured on screen-printed electrodes (SPCEs) in the presence of H2O2 and hydroquinone (HQ), the biotool achieved a low limit of detection (0.5 pM) for the synthetic HPV16 target DNA. In addition, the developed bioplatform was able to discriminate between HPV16 positive and negative human cancer cells using only 25 ng of amplified DNA in a test time of 45 min