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Quantitation of O6-Methylguanine-DNA Methyltransferase Gene Messenger RNA in Gliomas by Means of Real-Time RT-PCR and Clinical Response to Nitrosoureas

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Summary

  1. 1.

    O6-methylguanine-DNA methyltransferase (MGMT) mRNA was measured in 50 malignant gliomas that had received 1-(4-amino-2-methyl-5-pyrimidynyl) methyl-3-(2-chloroethyl)-3-nitrosourea hydrochloride (ACNU) after the resection of the tumor by real-time reverse transcription-polymerase chain reaction (RT-PCR) using TaqMan probe.

  2. 2.

    The mean absolute value of MGMTmRNA normalized to the level of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) for 50 tumors was 1.29 × 104± 1.28 × 104 copy/μg RNA (mean ± SD). The amount of MGMTmRNA less than 6 × 103 copy/μg RNA was the most significant factor in predicting the initial effect of treatment with ACNU by multi-variant regression analysis (p = 0.0157).

  3. 3.

    These results suggest that quantitation of MGMTmRNA is the excellent method for predicting for the effect of ACNU in glioma therapy.

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References

  • Aldea, C., Alvarez, C. P., Folgueira, L., Delgado, R., and Otero, J. R. (2002). Rapid detection of herpes simplex virus DNA in genital ulcers by real-time PCR using SYBR green I dye as the detection signal. J. Clin. Microbiol. 40:1060–1062.

    Article  PubMed  CAS  Google Scholar 

  • Arcicasa, M., Roncadin, M., Bortolus, R., Bassignano, G., Boz, G., Franchin, G., De Paoli, A., and Trovo, M. G. (1994). Results of three consecutive combined treatments for malignant gliomas. Ten-year experience at a single institution. Am. J. Clin. Oncol. 17:437–443.

    PubMed  CAS  Google Scholar 

  • Chomczynski, P., and Sacchi, N. (1987). Single-step methods of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction. Anal. Biochem. 162:156–159.

    Article  PubMed  CAS  Google Scholar 

  • Heid, C. A., Stevens, J., Livak, K. J., and Williams, P. M. (1996). Real time quantitative PCR. Genome Res. 6:986–994.

    PubMed  CAS  Google Scholar 

  • Mineura, K., Yanagisawa, T., Watanabe, K., Kowada, M., and Yasui, N. (1996). Human brain tumor O(6)-methylguanine-DNA methyltransferase mRNA and its significance as an indicator of selective chloroethylnitrosourea chemotherapy. Int. J. Cancer 69:420–425.

    Article  PubMed  CAS  Google Scholar 

  • Mullah, B., Livak, K., Andrus, A., and Kenney, P. (1998). Efficient synthesis of double dye-labeled oligodeoxyribonucleotide probes and their application in a real time PCR assay. Nucleic Acids Res. 26:1026–1031.

    Article  PubMed  CAS  Google Scholar 

  • Nagane, M., Shibui, S., Oyama, H., Asai, A., Kuchino, Y., and Nomura, K. (1995). Investigation of chemoresistance-related genes mRNA expression for selecting anticancer agents in successful adjuvant chemotherapy for a case of recurrent glioblastoma. Surg. Neurol. 44:462–468.

    PubMed  CAS  Google Scholar 

  • Saiki, R. K., Gelfand, D. H., Stoffel, S., Scharf, S. J., Higuchi, R., Horn, G. T., Mullis, K. B., and Erlich, H. A. (1988). Primer-directed enzymatic amplification of DNA with a thermostable DNA polymerase. Science 239:487–491.

    PubMed  CAS  Google Scholar 

  • Silber, J. R., Mueller, B. A., Ewers, T. G., and Berger, M. S. (1993). Comparison of O6-methylguanine-DNA methyltransferase activity in brain tumors and adjacent normal brain. Cancer Res. 53:3416–3420.

    CAS  Google Scholar 

  • Tanaka, S., Kamitani, H., Amin, M. R., Watanabe, T., Oka, H., Fujii, K., Nagashima, T., and Hori, T. (2000). Preliminary individual adjuvant therapy for gliomas based on the results of molecular biological analyzes for drug-resistance genes. J. Neuro-Oncol. 46:157–171.

    Article  CAS  Google Scholar 

  • Tanaka, S., Kobayashi, I., Oka, H., Fujii, K., Watanabe, T., Nagashima, T., and Hori, T. (2003). O6-methylguanine-DNA methyltransferase gene expression in gliomas by quantitative real-time RT-PCR and clinical response to nitrosoureas. Int. J. Cancer 103:67–72.

    Article  PubMed  CAS  Google Scholar 

  • Tano, K., Shiota, S., Collier, J., Foote, R. S., and Mitra, S. (1990). Isolation and structural characterization of a cDNA clone encoding the human DNA repair protein for O6-alkylguanine. Proc. Natl. Acad. Sci. U.S.A. 87:686–690.

    PubMed  CAS  Google Scholar 

  • Yoshida, J., Kajita, Y., Wakabayashi, T., and Sugita, K. (1994). Long-term follow up results of 175 patients with malignant glioma: Importance of radical tumor resection and postoperative adjuvant therapy with interferon, ACNU and radiation. Acta. Neurochir. (Wien) 127:55–59.

    Article  CAS  Google Scholar 

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Correspondence to Satoshi Tanaka.

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Tanaka, S., Oka, H., Fujii, K. et al. Quantitation of O6-Methylguanine-DNA Methyltransferase Gene Messenger RNA in Gliomas by Means of Real-Time RT-PCR and Clinical Response to Nitrosoureas. Cell Mol Neurobiol 25, 1067–1071 (2005). https://doi.org/10.1007/s10571-005-8475-0

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  • DOI: https://doi.org/10.1007/s10571-005-8475-0

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