title: A polymer-based DNA biochip platform for human papilloma virus genotyping.
abstract: Genotyping of the human papilloma virus (HPV) is from a clinical point of view an important diagnostic task as some genotypes play a major role in the development of cervical carcinoma. So far PCR combined with blotting or in situ labelling is known to be the most accurate and sensitive method for detection and genotyping of HPV infection in clinical samples. However, specificity, cost-efficiency and sensitivity are not always satisfactory. A novel DNA biochip is described based on a plastic substrate, onto which small polymer droplets and single-stranded DNA are printed in the form of microarrays. Immobilisation of all compounds on the chip surface is achieved by a short UV-irradiation process, inducing photochemical reactions in the polymer. The chip designed for this study contains 36 probes for determining 12 common, different HPV genotypes. After isolation of the DNA, PCR and biochip read-out, the chip allows for genotyping of the most common virus strains, which, according to current prevalence studies, cover 85-95% of all infections. Following this approach as little as 10 virus copies can be detected within a short exposure time. Even using paraffin-embedded material and 10(4) copies per PCR are sufficient to allow rapid and reliable HPV genotyping.
authors: Laboratory for Chemistry and Physics of Interfaces, Department of Micro-systems Engineering (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, D-79110 Freiburg, Germany.
authors: Thomas
authors: T
authors: Brandstetter
authors: Sebastian
authors: S
authors: Böhmer
authors: Oswald
authors: O
authors: Prucker
authors: Emmanuel
authors: E
authors: Bissé
authors: Axel
authors: A
authors: zur Hausen
authors: Juliane
authors: J
authors: Alt-Mörbe
authors: Jürgen
authors: J
authors: Rühe
mesh_terms: D004279:DNA, Viral / Q000032:analysis*; D005260:Female; D005838:Genotype; D006801:Humans; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods*; D027383:Papillomaviridae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D030361:Papillomavirus Infections / Q000175:diagnosis* / Q000821:virology; D011933:Reagent Kits, Diagnostic; D012680:Sensitivity and Specificity; D002583:Uterine Cervical Neoplasms / Q000175:diagnosis* / Q000821:virology
chemical_list: D004279:DNA, Viral; D011933:Reagent Kits, Diagnostic