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[Significance of 5'-deoxy-5-fluorouridine (5'-DFUR) administration before surgery for advanced gastric and colonic cancers--activity of pyrimidine nucleoside phosphorylase (PyNPase) and serum immunosuppressive acidic protein (IAP)]. 1996

N Murakami, and M Hirano, and H Saito, and S Nagao, and Y Arano, and T Kikuchi, and N Ishikawa, and M Kurokawa, and H Kitsukawa
Dept. of Surgery, Kohseiren Takaoka Hospital.

We administered preoperatively 5'-deoxy-5-fluorouridine (5'-DFUR) for treatment of advanced gastric and colonic cancers, and measured pyrimidine nucleoside phosphorylase (PyNPase) in the excised tumor sample and serum immunosuppressive acidic protein (serum IAP), which is an index of the immunity of host-bearing cancer, while studying its direct antitumor effect and improved immunity. Patients with 24 advanced gastric cancers and 36 colonic cancers were randomly divided into a preoperatively administered group and a non-administered group. In the preoperatively administered group, 5'-DFUR (1,200 mg/day) was orally administered on preoperative days 7 approximately 14. After collecting samples (about 0.5 g) from adjacent normal tissues with tumor within 30 minutes after extirpation of tumor and freezing those less than -20 degrees C, the PyNPase level was measured as soon as possible. Moreever, serum IAP levels at pre-administration in the administered group and on admission in the non-administered group were measured. Those in the administered group were measured again on the operative day. No decreasing tendency of PyNPase was generally found in cases with gastric colonic cancers, and no significant difference in stage-II was not either. However, a decreasing tendency in tumor activity was found by pre-administration. Moreover, there was significant improvement in the serum IAP level in cases with gastric and colonic cancers by pre-operative administration of 5'-DFUR. This tendency was also found in advanced colonic cancer with Dukes-C by Dukes's classification. In conclusion, it was suggested that the pre-operative administration of 5'-DFUR for treatment of advanced gastric and colonic cancers has a favorable influence for prognosis because the tumor region was retarded by the high PyNPase activity according to the severity of tumors and elevating tendency of the immune response in host.

UI MeSH Term Description Entries
D007166 Immunosuppressive Agents Agents that suppress immune function by one of several mechanisms of action. Classical cytotoxic immunosuppressants act by inhibiting DNA synthesis. Others may act through activation of T-CELLS or by inhibiting the activation of HELPER CELLS. While immunosuppression has been brought about in the past primarily to prevent rejection of transplanted organs, new applications involving mediation of the effects of INTERLEUKINS and other CYTOKINES are emerging. Immunosuppressant,Immunosuppressive Agent,Immunosuppressants,Agent, Immunosuppressive,Agents, Immunosuppressive
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009363 Neoplasm Proteins Proteins whose abnormal expression (gain or loss) are associated with the development, growth, or progression of NEOPLASMS. Some neoplasm proteins are tumor antigens (ANTIGENS, NEOPLASM), i.e. they induce an immune reaction to their tumor. Many neoplasm proteins have been characterized and are used as tumor markers (BIOMARKERS, TUMOR) when they are detectable in cells and body fluids as monitors for the presence or growth of tumors. Abnormal expression of ONCOGENE PROTEINS is involved in neoplastic transformation, whereas the loss of expression of TUMOR SUPPRESSOR PROTEINS is involved with the loss of growth control and progression of the neoplasm. Proteins, Neoplasm
D010430 Pentosyltransferases Enzymes of the transferase class that catalyze the transfer of a pentose group from one compound to another.
D011300 Preoperative Care Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed) Care, Preoperative,Preoperative Procedure,Preoperative Procedures,Procedure, Preoperative,Procedures, Preoperative
D003110 Colonic Neoplasms Tumors or cancer of the COLON. Cancer of Colon,Colon Adenocarcinoma,Colon Cancer,Cancer of the Colon,Colon Neoplasms,Colonic Cancer,Neoplasms, Colonic,Adenocarcinoma, Colon,Adenocarcinomas, Colon,Cancer, Colon,Cancer, Colonic,Cancers, Colon,Cancers, Colonic,Colon Adenocarcinomas,Colon Cancers,Colon Neoplasm,Colonic Cancers,Colonic Neoplasm,Neoplasm, Colon,Neoplasm, Colonic,Neoplasms, Colon
D004334 Drug Administration Schedule Time schedule for administration of a drug in order to achieve optimum effectiveness and convenience. Administration Schedule, Drug,Administration Schedules, Drug,Drug Administration Schedules,Schedule, Drug Administration,Schedules, Drug Administration
D005260 Female Females
D005467 Floxuridine An antineoplastic antimetabolite that is metabolized to fluorouracil when administered by rapid injection; when administered by slow, continuous, intra-arterial infusion, it is converted to floxuridine monophosphate. It has been used to treat hepatic metastases of gastrointestinal adenocarcinomas and for palliation in malignant neoplasms of the liver and gastrointestinal tract. FUdR,Fluorodeoxyuridine,5-FUdR,5-Fluorodeoxyuridine,5 Fluorodeoxyuridine

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