Real-Time Detection of Telomerase in a Microelectromechanical Systems Platform

作者: Jeremy R. Gilbertson

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摘要: Abstract : The integration of biology with Microelectromechanical Systems and Nanotechnology could result in a synergism tremendous benefits both basic research clinical assays. development functionalized liquid core waveguide to detect biological function or substance via fluorescence have broad range applications. One such target interest for developing system, is the ribonucleoprotein enzyme telomerase. It confirmed biomarker cancer; having been associated over 90% cancers examined. Development MEMS-based detection system would allow accurate small numbers molecules sample volumes. In order accomplish this I first developed bench-top assay identify key components reaction optimize scheme before incorporation into MEMS device. This itself will utility labs telomerase detection. My ongoing efforts synthesize has resulted modification inside surface capillary using rapid, straightforward chemistry indirectly attach molecular beacon. beacon, component capillary, strand DNA that folded specific structure corresponding capture sequence also contains fluorophore quencher moiety. When are close proximity, resonance energy transfer FRET) takes place; effectively quenching flurescence emission. However, binding DNA, RNA, protein beacon causes conformational change separates at which point fluorescent signal can be detected. PDMS chip facilitate fluid control optic fiber couplings

参考文章(18)
Kenneth E. Huffman, Stephen D. Levene, Valerie M. Tesmer, Jerry W. Shay, Woodring E. Wright, Telomere Shortening Is Proportional to the Size of the G-rich Telomeric 3′-Overhang Journal of Biological Chemistry. ,vol. 275, pp. 19719- 19722 ,(2000) , 10.1074/JBC.M002843200
Karl Dhaene, E. Van Marck, Reza Parwaresch, Telomeres, telomerase and cancer: an up-date. Virchows Archiv. ,vol. 437, pp. 1- 16 ,(2000) , 10.1007/S004280000189
J. D. WATSON, Origin of Concatemeric T7DNA Nature. ,vol. 239, pp. 197- 201 ,(1972) , 10.1038/NEWBIO239197A0
Klara Abravaya, Jeffrey Huff, Ron Marshall, Barbara Merchant, Carolyn Mullen, George Schneider, John Robinson, Molecular beacons as diagnostic tools: technology and applications. Clinical Chemistry and Laboratory Medicine. ,vol. 41, pp. 468- 474 ,(2003) , 10.1515/CCLM.2003.070
Joe Y. Chang, Telomerase: a potential molecular marker and therapeutic target for cancer. Journal of Surgical Oncology. ,vol. 87, pp. 1- 3 ,(2004) , 10.1002/JSO.20076
Marc A Unger, Hou-Pu Chou, Todd Thorsen, Axel Scherer, Stephen R Quake, Monolithic Microfabricated Valves and Pumps by Multilayer Soft Lithography Science. ,vol. 288, pp. 113- 116 ,(2000) , 10.1126/SCIENCE.288.5463.113
Mark Schrader, Angelika Burger, Markus Muller, Hans Krause, Bernd Straub, Gilian Smith, Eward Newlands, Kurt Miller, Quantification of human telomerase reverse transcriptase mRNA in testicular germ cell tumors by quantitative fluorescence real-time RT-PCR Oncology Reports. ,vol. 9, pp. 1097- 1105 ,(2002) , 10.3892/OR.9.5.1097
Calvin B. Harley, Telomere loss: mitotic clock or genetic time bomb? Mutation Research. ,vol. 256, pp. 271- 282 ,(1991) , 10.1016/0921-8734(91)90018-7
Eiso Hiyama, Keiko Hiyama, Clinical utility of telomerase in cancer Oncogene. ,vol. 21, pp. 643- 649 ,(2002) , 10.1038/SJ.ONC.1205070