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  • Title: [Urinary diacetylspermine: its analysis and performance as a novel tumor marker].
    Author: Kawakita M, Hiramatsu K, Takahashi K, Yamada R, Kawaguchi M, Shinoura N, Tanaka T, Kariyone K, Tamamori Y, Sasaki Y, Mori T.
    Journal: Rinsho Byori; 2005 Feb; 53(2):123-9. PubMed ID: 15796045.
    Abstract:
    N1,N12-Diacetylspermine (DiAcSpm) is excreted in the urine of healthy persons as a minor component of urinary polyamine. It is a promising tumor marker, since its excretion is frequently elevated in patients with various types of cancers. DiAcSpm was first detected and characterized by HPLC fractionation followed by enzymatic detection, but more recently, antibodies highly specific for DiAcSpm was prepared, and an ELISA system applicable to determination of urinary DiAcSpm was established. Measurement of urinary DiAcSpm using this ELISA system revealed that DiAcSpm is able to detect early stage (m and sm) colon cancers which CEA and CA19-9 cannot detect. DiAcSpm may also serve as a prognostic indicator and a marker for recurrence of colon cancer. Urinary DiAcSpm is elevated in metastatic and primary brain tumors including grade 3 and 4 gliomas and primary central nervous system lymphoma. In these primary brain tumors changes in urinary DiAcSpm were well correlated with the efficacy of treatments, recurrence of disease and increased malignancy of a tumor. DiAcSpm may be useful as a comprehensive indicator of the activeness of a brain tumor lesion in a patient. DiAcSpm was elevated in hepatocellular carcinoma, but patients with liver cirrhosis also showed considerably elevated levels of DiAcSpm.
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