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Molecular Diagnostics and Genetics |
1
Biotechnology Division, Chemical Science and Technology Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899.
2
Department of Molecular Oncology, John Wayne Cancer
Institute, Santa Monica, CA 90404.
a Author for correspondence. Fax 310-330-3447; e-mail coc{at}nist.gov.
Increased sensitivity and improved quantitation of analytical tests used in biotechnology and clinical chemistry are goals of many laboratories. We have used tyrosinase primers to specifically amplify by RT-PCR the tyrosinase mRNA expressed by the M12 melanoma cell line in a background of mRNA from breast cancer cells. An electrochemiluminescence detection procedure was used as a readout system for this study. Biotinylated post-PCR cDNA samples were hybridized to a tris(2,2'-bipyridine)ruthenium(II) (TBR) chelate-labeled oligonucleotide probe, and the hybrid was subsequently captured by streptavidin-coated Dynabeads®. When either the QPCR System 5000 or the Origen 1 Analyzer System were used, the luminescence emitted by the TBR-chelate of the captured specific post-PCR product was assessed. Tyrosinase-specific mRNA isolated from ~110 melanoma cells in a background of 107 cells could be detected. We improved the sensitivity and logistics of the assay through the use of rTth for reverse transcription and amplification. Tyrosinase mRNA was detected in blood from 7 of 16 melanoma patients, whereas none of the 5 healthy donor bloods were positive (P = 0.01; Wilcoxon test).
The following articles in journals at HighWire Press have cited this article:
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C. T. Kuo, D. S.B. Hoon, H. Takeuchi, R. Turner, H.-J. Wang, D. L. Morton, and B. Taback Prediction of Disease Outcome in Melanoma Patients by Molecular Analysis of Paraffin-Embedded Sentinel Lymph Nodes J. Clin. Oncol., October 1, 2003; 21(19): 3566 - 3572. [Abstract] [Full Text] [PDF] |
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R. A. Wascher, K. T. Huynh, A. E. Giuliano, N. M. Hansen, F. R. Singer, D. Elashoff, and D. S. B. Hoon Stanniocalcin-1: A Novel Molecular Blood and Bone Marrow Marker for Human Breast Cancer Clin. Cancer Res., April 1, 2003; 9(4): 1427 - 1435. [Abstract] [Full Text] [PDF] |
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B. Taback, A. D. Chan, C. T. Kuo, P. J. Bostick, H.-J. Wang, A. E. Giuliano, and D. S. B. Hoon Detection of Occult Metastatic Breast Cancer Cells in Blood by a Multimolecular Marker Assay: Correlation with Clinical Stage of Disease Cancer Res., December 1, 2001; 61(24): 8845 - 8850. [Abstract] [Full Text] [PDF] |
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D. S. B. Hoon, C. T. Kuo, S. Wen, H. Wang, L. Metelitsa, C. P. Reynolds, and R. C. Seeger Ganglioside GM2/GD2 Synthetase mRNA Is a Marker for Detection of Infrequent Neuroblastoma Cells in Bone Marrow Am. J. Pathol., August 1, 2001; 159(2): 493 - 500. [Abstract] [Full Text] |
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I. Miyashiro, C. Kuo, K. Huynh, A. Iida, D. Morton, A. Bilchik, A. Giuliano, and D. S.B. Hoon Molecular Strategy for Detecting Metastatic Cancers with Use of Multiple Tumor-specific MAGE-A Genes Clin. Chem., March 1, 2001; 47(3): 505 - 512. [Abstract] [Full Text] [PDF] |
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H. Tsao, U. Nadiminti, A. J. Sober, and M. Bigby A Meta-analysis of Reverse Transcriptase-Polymerase Chain Reaction for Tyrosinase mRNA as a Marker for Circulating Tumor Cells in Cutaneous Melanoma Arch Dermatol, March 1, 2001; 137(3): 325 - 330. [Abstract] [Full Text] [PDF] |
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D. S. B. Hoon, P. Bostick, C. Kuo, T. Okamoto, H.-J. Wang, R. Elashoff, and D. L. Morton Molecular Markers in Blood as Surrogate Prognostic Indicators of Melanoma Recurrence Cancer Res., April 1, 2000; 60(8): 2253 - 2257. [Abstract] [Full Text] |
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F. Fini, G. Gallinella, S. Girotti, M. Zerbini, and M. Musiani Development of a Chemiluminescence Competitive PCR for the Detection and Quantification of Parvovirus B19 DNA Using a Microplate Luminometer Clin. Chem., September 1, 1999; 45(9): 1391 - 1396. [Abstract] [Full Text] [PDF] |
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