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학술저널
저자정보
김민준 (중앙대학교) 차성재 (중앙대학교) 박성일 (중앙대학교) 박성준 (중앙대학교) 장인택 (중앙대학교) 김범규 (중앙대학교) 최유신 (중앙대학교) 이태진 (중앙대학교)
저널정보
대한외과학회 Annals of Surgical Treatment and Research 대한외과학회지 Vol.72 No.6
발행연도
2007.6
수록면
453 - 459 (7page)

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Purpose: Tight junction proteins are either over-expressed or suppressed in some cancers. These suppressions of claudin-1 and ZO-1 protein are known to have a significant relationship with the progression of breast cancer. The authors reviewed 42 cases of breast cancer and the staining status of claudin-1 and ZO-1 in order to evaluate Claudin-1 and ZO-1 as clinicopathologic risk factors.
Methods: Immunohistological staining for Claudin-1 and ZO-1 was performed in 42 post-operative pathologically diagnosed infiltrating duct carcinoma specimens. The rate of expression was compared with the clinical record, the pathological diagnosis, the estrogen receptor and progesteron receptor status and the c-erbB2 gene to evaluate the protein expression-breast cancer progression relationship and to investigate the expressions of Claudin-1 and ZO-1 as a prognostic factors in breast cancer.
Results: The claudin-1 and ZO-1 expressions were both decreased in all the post-operative specimens. The claudin-1 expressions were significantly decreased 100%, 82.4% and 66.7% as the histologic grade increased. The ZO-1 expressions were shown in 44.8% of the lymph node metastasis negative group and in 7.7% of the lymph node positive group. The expression of ZO-1 decreased by 53.3%, 28.6% and 0%, with statistical significance, as the stage increased.
Conclusion: The claudin-1 expressions were decreased in the poorly differentiated group, i.e., a high histologic grade, and the ZO-1 expressions were decreased in the lymph node positive group and in the high stage cancer. This shows the possibility of Claudin-1 and ZO-1 as factors for tumorigenesis and progression and as prognostic factors in breast cancer.

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UCI(KEPA) : I410-ECN-0101-2013-514-002675518