压电基因传感器芯片技术在快速检测人乳头瘤病毒中的应用

目的：快速检出尖锐湿疣组织中人乳头瘤病毒（HPV）并分型。方法：利用基因芯片（Gene chip）与压电传感器（Piezoelectric biosensor）相结合的技术，通过HPV6、11、16、18四种型特异寡核苷酸探针建立一种快速检测HPV并分型的方法。并与常规的PCR和斑点杂交方法比较。结果：取复发型尖锐湿疣及相应的原发病例组织标本各22份，用压电基因传感器芯片技术检测结果为：原发型组织标本全部为阳性结果，其中HPV6：17（77.3％），HPV11：3（13.6％），HPV16：2（9.1％），HPV18：未检出；复发型组织标本中除第18例标本为阴性结果外，其余21份为阳性结果，其中HPV6：15（68.2％），HPV11：2（9.1％），HPV16：4（18.2％），HPV18：未检出。用PCR方法检测结果全部阳性，PCR扩增的产物经斑点杂交分型结果与其基本一致。结论：压电基因传感器芯片技术具有准确、快速、灵敏的优点。

Multichannel piezoelectric genesensor for the detection of human papilloma virus

Objective To establish a method for rapid detection and sub-typing of human papilloma virus (HPV). Methods We utilized the piezoelectric genosensor (PG) technique, which is a combination of the piezoelectric biosensor and gene chips for HPV identification in 22 recurrent biopsy specimens and 22 corresponding original biopsy specimens. The control samples came from normal tissue of healthy persons. A combined reaction took place on the sensor surface between the target genes and probes. The frequency of the piezoelectric sensor will decrease when such reactions occur, and the frequency decrease depends on the concentration of the target gene. Specimens were also analyzed with conventional PCR and dot blot. Results Of the 22 recurrent specimens, 15 contained HPV6 DNA, 2 HPV11 DNA, and 4 HPV16 DNA. Only one specimen was negative. All the 22 original specimens were positive: 17 harbored HPV6 DNA, 3 sequence homologous HPV11 DNA, and 2 HPV16 DNA. No HPV18 DNA was detected in any specimen. When compared with PCR and dot blot analysis, the results were essentially the same except for one specimen, which was shown to contain other sub-types of HPV. Conclusion Our results show that the piezoelectric genosensor technique is a rapid and specific method to analyze HPV.