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      햄스터 구강암 발생 과정에서 Heat Shock Protein에 관한 면역조직화학적 연구 = A immunohistochemical study on heat shock protein in oral carcinogenesis in hamster

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      https://www.riss.kr/link?id=A3010773

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      다국어 초록 (Multilingual Abstract)

      A IMMUNOHISTOCHEMICAL STUDY ON HEAT SHOCK PROTEIN IN ORAL CARCINOGENESIS IN HAMSTER
      Heat shock protein (HSP) expression is unto·emulated in tumor cells and, HSP expression is likely marker of the malignant potential of oral epithelial lesion. Furthermore, the 70kDa HSP is implicated in the degree of tumor differentiation, the rate of tumor proliferation and the magnitude of the anti-tumor Immune response. Accordingly, the distribution and intensity of HSP70 and HSP47 expression was assessed in the DMBA induced oral carcinogenesis in hamster.
      Golden Syrian hamsters which were 3 months-age and 90∼120g were collected. 9,10-dimethyl -1,2-ben-zanthracene (DMBA) in a 0.5% solution in mineral oil was painted on the buccal pouch mucosa 3 times per week in the study group.
      In each control and experimental groups of 6, 8, 10, 12, 14, 16, 18, 20 weeks, specined for immunohistochemical study with anti-HSP47 and anti-HSP70 antibody.
      The following results were obtained.
      1.HSP47 positive cells were race or negative of normal oral mucosa, increased mildly in basal and suprabasal basal layer, and spinous cell layer after experimental 6 weeks (dysplastic or CIS stage). In CIS stage, HSP47 expression is prominent in dysplastic free or normal adjacent epithelium.
      2.HSP47 positive cells in connective tissue were mainly inflammatory cells, which is gradually increased from control to precancerous and cancer stage. But HSP47 positive cells after 14 weeks were decreased, especially normal and cancer adjacent epithelium.
      3.The positive staining cells of HSP70 in control, dysplastic, and CIS stage were not seen. But they were mild findings in basal layer and moderate findings in spinous layer after experimental 14 weeks (cancer stage).
      4.HSP70 positive cells were increased in precancerous and cancer stage than control group in connective tissue. After experimental 16 weeks, we could not find the HSP expression in cancer cells according to cancer differentiation or cancer stage.
      It is concluded that HSP70 or HSP47 expression is not a definitive marker of oral malignancy or malignant potential. However, with further development, HSP immunoreactivity may be valuable as an adjunct to conventional histology for assessing the malignant potential of oral mucosal lesions.
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      A IMMUNOHISTOCHEMICAL STUDY ON HEAT SHOCK PROTEIN IN ORAL CARCINOGENESIS IN HAMSTER Heat shock protein (HSP) expression is unto·emulated in tumor cells and, HSP expression is likely marker of the malignant potential of oral epithelial lesion. Furthe...

      A IMMUNOHISTOCHEMICAL STUDY ON HEAT SHOCK PROTEIN IN ORAL CARCINOGENESIS IN HAMSTER
      Heat shock protein (HSP) expression is unto·emulated in tumor cells and, HSP expression is likely marker of the malignant potential of oral epithelial lesion. Furthermore, the 70kDa HSP is implicated in the degree of tumor differentiation, the rate of tumor proliferation and the magnitude of the anti-tumor Immune response. Accordingly, the distribution and intensity of HSP70 and HSP47 expression was assessed in the DMBA induced oral carcinogenesis in hamster.
      Golden Syrian hamsters which were 3 months-age and 90∼120g were collected. 9,10-dimethyl -1,2-ben-zanthracene (DMBA) in a 0.5% solution in mineral oil was painted on the buccal pouch mucosa 3 times per week in the study group.
      In each control and experimental groups of 6, 8, 10, 12, 14, 16, 18, 20 weeks, specined for immunohistochemical study with anti-HSP47 and anti-HSP70 antibody.
      The following results were obtained.
      1.HSP47 positive cells were race or negative of normal oral mucosa, increased mildly in basal and suprabasal basal layer, and spinous cell layer after experimental 6 weeks (dysplastic or CIS stage). In CIS stage, HSP47 expression is prominent in dysplastic free or normal adjacent epithelium.
      2.HSP47 positive cells in connective tissue were mainly inflammatory cells, which is gradually increased from control to precancerous and cancer stage. But HSP47 positive cells after 14 weeks were decreased, especially normal and cancer adjacent epithelium.
      3.The positive staining cells of HSP70 in control, dysplastic, and CIS stage were not seen. But they were mild findings in basal layer and moderate findings in spinous layer after experimental 14 weeks (cancer stage).
      4.HSP70 positive cells were increased in precancerous and cancer stage than control group in connective tissue. After experimental 16 weeks, we could not find the HSP expression in cancer cells according to cancer differentiation or cancer stage.
      It is concluded that HSP70 or HSP47 expression is not a definitive marker of oral malignancy or malignant potential. However, with further development, HSP immunoreactivity may be valuable as an adjunct to conventional histology for assessing the malignant potential of oral mucosal lesions.

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      목차 (Table of Contents)

      • I.서론
      • II.연구 재료 및 방법
      • 1.연구 재료
      • 2.실험방법
      • III.연구성적
      • I.서론
      • II.연구 재료 및 방법
      • 1.연구 재료
      • 2.실험방법
      • III.연구성적
      • 1.조직 병리학적 소견
      • 2.구강 발암 단계에 따른 HSP47 발현 분포
      • 3.구강 발암 단계에 따른 HSP70 발현 분포
      • IV.총괄 및 고찰
      • V.결론
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