1995 Fiscal Year Final Research Report Summary
Immunohistochemical study of expression of several proto-oncogenes in cancer tissues from patients undergoing radiation therapy
| Project/Area Number |
06670927
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Radiation science
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| Research Institution | Kochi Medical School |
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Principal Investigator |
OGAWA Yasuhiro Kochi Medical School, Faculty of Medicine, Associate, Professor, 医学部, 助教授 (90152397)
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| Co-Investigator(Kenkyū-buntansha) |
SEGUCHI Harumichi Kochi Medical School Faculty of Medicine, Professor, 医学部, 教授 (90030866)
INOMATA Taisuke Kochi Medical School, Faculty of Medicine, Assistant, Professor, 医学部, 講師 (90176462)
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| Project Period (FY) |
1994 – 1995
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| Keywords | Cancer / Radiotherapy / P53 / Immunohistochemistry / Apotosis |
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| Research Abstract |
Immunostaining using p53 monoclonal antibodies (p53 (Ab-3) recognizes mutant type and p53 (Ab-5) the wild type of p53 protein) was performed on frozen sections of biopsy specimens obtained before and during preoperative radiotherapy from 40 patients with head and neck squamous cell carcinoma. The positive staining rates of p53 (Ab-3) before radiotherapy and at radiation doses of 4Gy, 10Gy and 20Gy were 25.0%, 36.4%, 25.7% and 13.8%, respectively. The frequency of the expression of mutant type p53 protein tended to increase in rather radiosensi-tive tumors.
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[Publications] Hamada, N., Ogawa, Y., Seguchi, H., Terashima, M., Nishioka, A., Inomata, T., Yoshida, S., Kishimoto, S., Saito, H. :"Immunohistochemical study of p53 expression in cencer tissues from patients undergoing radiation therapy." Histology and Histopathology. 10. 611-617 (1995)
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「研究成果報告書概要(欧文)」より
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[Publications] Ogata, T., Araki, K., Matsuura K., Kobayashi, M., Inomata, T., Ogawa, Y., Yoshida, S. :"A 10-year experience of intraoperative radiotherapy for gastric carcinoma and a new surgical method of creating a wider irradiation field for cases of total gastrectomy patients." Int. J.Radiation Oncology Biol. Phys.32 :. 341-347 (1995)
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「研究成果報告書概要(欧文)」より
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[Publications] Tanaka, Y., Ohmori, Y., Toki, T., Okazaki, Y., Ogoshi, S., Ogawa, Y. :"A case of advanced male breast cancer successfully treated by 5-fluorouracil, epirubicin and cyclophosphamide chemotherapy combined with tamoxifen." Archiv fur Japanische Chirurgie. 64. 15-22 (1995)
Description
「研究成果報告書概要(欧文)」より
