Mao Hong-ju, Gu Shi-min, Zhao Jian-long, Liu Jiang-xia
State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China.
Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi. 2003 Dec;17(4):375-7.
To establish a new method based DNA chip technique for detecting HCV genotypes.
Genotyping probes were designed according to the sequence of HCV 5' NCR to generate DNA chip. The probes on DNA chip contains 5 major genotypes and 8 subtypes. The DNA fragment amplified by labeling Cy5 fluorescence was hybridized with DNA chip.
Fifty-five out of 65 isolates detected by DNA chip belonged to 1b- DNA sequencing of form a part of the isolates was used as the control. The results of both were completely consistent.
The method is simple and rapid with high specificity and sensitivity. It can be applied in detection of HCV RNA and genotypes.