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2000 Fiscal Year Final Research Report Summary

The analysis on functions of aberrant carbohydrates in endometrial cancer cells and the mechanism of their expression

Research Project

Project/Area Number 10671570
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Obstetrics and gynecology
Research InstitutionKeio University

Principal Investigator

AOKI Daisuke  Keio University, School of Medicine, Assistant Professor, 医学部, 講師 (30167788)

Project Period (FY) 1998 – 2000
KeywordsEndometrial cancer / Fucosyltransferase / Carbohydrate antigen / Lewis blood sugar type / Monoclonal antibody / Immunohistochemistry
Research Abstract

Monoclonal antibody MSN-1 was established against an endometrial cancer cell line. Immunohistochemical staining with this antibody resulted in a positive reaction in more than 90% of the cases of endometrial adenocarcinoma examined : but few cases with normal endometria. Base on these histochemical data, all cancer tissues expressing either Lewis b or Lewis y carbohydrate antigen were MSN-1-positive, indicating that the antigen detected by it is significantly increased in the cancer and that its epitope may be a terminal α-1,2 fucosylated carbohydrate residue, which is common between Lewis b and Lewis y. In this study, we investigated whether or not the phenotypic expression of the MSN-1-reactive antigen in endometrial adenocarcinoma specimens was affected by the expression of α-1,2 fucosyltransferases encoded by the Se or H gene.
Firstly, we immunohistochemically examined phenotypic expressions of Le antigens in endometrial adenocarcinoma. Secondly, we relatively compared the expression of Se or H gene between cancer tissues and normal endometria by the method of RT-PCR.In addition, we checked missense mutations of the Se gene, whose homozygote (se/se) causes inactivation of the enzymatic activity.
Cancer cells obtained from patients with a missense mutation of the Se gene (se/se). were positively stained by MSN-1. On the other hands, mRNA derived from the H gene, as well as that from the Se gene. was not always expressed more in the endometrial adenocarcinoma than in normal endometria. In addition, the MSN-1 reactive antigen on cancer cells did not link to expression of mRNA of Se or Lewis enzyme.
These results imply two possibilities that endometrial cancer-specific fucose might be produced by collaboration of several α-1,2 fucosyltransferases or by a novel one.

  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] Masaru Sakamoto: "Telomerase activity in gynecological tumors"Oncol.Rep.. 7・5. 1003-1009 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shinji Ohie: "Cisplatin sensitivity of ovarian cancer in the histoculture drug response assay correlates to clinical response to combination chemo-therapy with cisplatin, doxorubicin and cyclophosphamide"Anticancer Res.. 20・3. 2049-2054 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Takashi Suzuki: "Imbalanced expression of TAN-1 and human notch4 in endometrial cancers"Int.J.Oncol.. 17・6. 1131-1139 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 青木大輔: "異所性子宮内膜が有する細胞増殖抑制効果の研究-卵巣明細胞腺癌相互作用を通じて-"日本産科婦人科学会雑誌. 52・8. 1150-1161 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 青木大輔: "子宮内膜症を伴う卵巣癌の生物学的特性"日本臨床. 59・増1. 213-216 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Aoki, D: "Inhibitory effect of ectopic endometrium on the prolification ovarin clear cell adenocarcinoma."Acta Obstet.Gynace.Jpn.. 52(8). 1150-1161 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sakamoto, M et al.: "Telomerase activity in gynecological tumors."Oncol.Rep.. 7(5). 1003-1009 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ohie, S et al.: "Cisplatin sensitivity of ovarian cancer in the histoculture drug response assay correlates to clinical response to combination chemotherapy with cisplatin, doxorubicin and cyclophosphamide."Anticancer Res.. 20(3). 2049-2054 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Suzuki T et al.: "Imbalanced expression of TAN-1 and human notch4 in endometrial cancers."Int.J.Oncol.. 17(6). 1131-1139 (2000)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2002-03-26  

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