Establishment of a hydrogel chip for high-throughput detection of y chromosome microdeletions
Li, Y.-Z.; Chen, Z.-Y.; Wang, H.; Huang, H.; Song, Q.-X.; Zhou, G.-H.
Zhonghua Nan Ke Xue 18(2): 109-114
2012
ISSN/ISBN: 1009-3591 PMID: 22568205 Document Number: 658475
To establish a high-sensitivity, high-specificity and low-cost hydrogel chip platform for the clinical screening of Y chromosome microdeletions. Site-specific extended primers with a common sequence at the 5' end were used for hybridizing with the target. The Cy5-dUTP was incorporated into the products by primer extension, and the products were labeled with fluorescence. Then the extended products were added to the chip for hybridizing with acrylamide-modified common probes immobilized on the chip. After removal of the free Cy5-dUTP by electrophoresis, the signals were obtained by fluorescence scanning. And the detecting conditions of this method were optimized. SY254 of 9 samples was successfully detected with the hydrogel chip. The results showed that 3 were normal and the other 6 with microdeletions (1 female sample as a negative control), which coincided with the results of conventional multiplex PCR-electrophoresis. The hydrogel chip platform we established has provided a new technique for the detection of Y chromosome microdeletions, and is beneficial to the diagnosis and treatment of male infertility.