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Japanese

Report of Two Cases with Germinoma Treated by Individual Adjuvant Chemotherapy Based on the mRNA Expression of Drug-resistance Gene Katsuzo KUNISHIO 1 , Masaki OKADA 1 , Keisuke MIYAKE 1 , Yoshihito MATSUMOTO 1 , Seigo NAGAO 1 , Yoshihiro NISHIYAMA 2 , Motoharu OHKAWA 2 1Deparment of Neurological Surgery,Kagawa University 2Department of Radiology,Kagawa University Keyword: germ cell tumor , multidrug-resistance gene , chemotherapy , MIBI-SPECT pp.19-26
Published Date 2004/1/1
DOI https://doi.org/10.11477/mf.1436100341
  • Abstract
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 We reported two cases with germ cell tumor in which new preliminary treatment trials were performed by chemotherapy using anti-cancer drug selected on the basis of multidrug resistance gene mRNA expression,such as MDR1,MRP1,MRP2,MXR1,MGMT,GSTπ and TopoIIα,from RT-PCR assay.

 A 28-year-old male had gradually developed DI. MR imaging revealed enhanced tumors in the medulla oblongata,the pineal region and the suprasella region. Biopsy of tumor in the medulla oblongata demonstrated germinoma histologically. RT-PCR assay of this tissue revealed overexpression of MRP1,MGMT and GSTπ mRNA,but neither MDR1,MRP2 nor MXR1 was observed. The patient was successfully given carboplatin,mitoxanthrone and ifosphamide after irradiation.

 A 15-year-old male was admitted to our hospital with high intracranial pressure syndrome. MR imaging revealed enhanced tumor in the pineal region. The tumor was diagnosed as a malignant germ cell tumor,histopathologically. RT-PCR assay of this tissue revealed overexpression of MRP1,MRP2,MXR1,MGMT and GSTπ mRNA. Only MDR1 was not expressed. The patient was treated by irradiation including radiosurgery combined with chemother apy,given cisplatin,etoposide and ifosphamide (ICE regimen),but he died because of progressive disease such as CSF dissemination.

 It seems that preliminary individual adjuvant chemotherapy based on mRNA expression of drug-resistance gene is available for the treatment of germ cell tumors.


Copyright © 2004, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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