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  • Title: mRNA detection of tumor-rejection genes BAGE, GAGE, and MAGE in peritoneal fluid from patients with ovarian carcinoma as a potential diagnostic tool.
    Author: Hofmann M, Ruschenburg I.
    Journal: Cancer; 2002 Jun 25; 96(3):187-93. PubMed ID: 12115308.
    Abstract:
    BACKGROUND: It has been found that the members of the BAGE, MAGE, and GAGE gene families are expressed almost exclusively in neoplastic tissues. Normal tissues, except testis and placenta, are negative. Therefore, the expression of these genes may serve as a useful diagnostic marker in detecting malignant disease. The involvement of the serous cavities by malignant neoplasms has important therapeutic and prognostic implications. Accordingly, the diagnosis of peritoneal spread of ovarian carcinoma plays an important role for both initial and second-look staging procedures. In some patients, however, a definite diagnosis cannot be established by morphologic or immunocytologic examination alone. Detection of tumor specific gene expression may be a sensitive additional tool in these settings. METHODS: The authors studied the gene expression observed in 44 ascites specimens. Gene expression was evaluated by reverse transcription-polymerase chain reaction analysis and sequencing. RESULTS: Of 44 ascites specimens, the expression of BAGE, MAGE-1, MAGE-3, and GAGE-1/2 was recognized in 17 specimens (63%), 2 specimens (7%), 8 specimens (30%), and 8 specimens (30%) with histologically proven ovarian carcinoma, respectively. Expression of the MAGE and GAGE genes was not observed in patients with nonneoplastic disease, whereas BAGE expression was seen in one patient with cirrhosis. CONCLUSIONS: These findings show that testing for BAGE, GAGE-1/2, MAGE-1, and MAGE-3 transcriptional activity in ascites specimens results in high sensitivity in diagnosing malignant ascites.
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