자궁목암종에서 Hypoxia Inducible Factor-1α의 발현과 Cyclin A1, Cyclin B1 발현 및 임상병리학적 인자들과의 연관성
The Expression of Hypoxia Inducible Factor-1αand Its Correlation with the Expressions of Cyclin A1 and Cyclin B1 and the Clinicopathologic Factors of Uterine Cervical Carcinoma
표주연, 조재호, 김현지, 박종필, 김영태, 조남훈,
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표주연 ( Pyo Ju-Yeon )
연세대학교 의과대학 병리학교실
조재호 ( Cho Jae-Ho )
연세대학교 의과대학 방사선종양학교실
김현지 ( Kim Hyun-Gi )
연세대학교 의과대학 병리학교실
박종필 ( Park Jong-Pil )
연세대학교 의과대학 병리학교실
김영태 ( Kim Young-Tae )
연세대학교 의과대학 산부인과학교실
조남훈 ( Cho Nam-Hoon )
연세대학교 의과대학 병리학교실
KMID : 0357920090430010013
Abstract
Background: Hypoxia inducible factor-1α(HIF-1α) is a transcription factor for various target genes that are involved in adapting cells to hypoxia. It promotes cell proliferation and survival via modulation of such cell cycle regulators such as cyclin A1 and cyclin B1 in response to hypoxia. This is associated with local failure of radiotherapy, which renders a poor prognosis for cervical carcinoma.
Methods: Using the tissue histologic sections and a tissue microarray of the archived biopsy and surgical specimens of uterine cervical carcinoma from 57 patients who were treated with radiation therapy alone, we performed immunohistochemical staining for HIF-1αand cyclin A1 and B1 to evaluate the correlations between the expressions of these proteins in tumors and the clinicopathologic parameters associated with the prognosis.
Results: The large tumor cell nests and invasive front margins of the tumors showed comparatively intense immunoreactivity of HIF-1α. There was no significant correlation between the HIF-1α, cyclin A1 and cyclin B1 expressions and the clinicopathologic factors.
Conclusions: The HIF-1αexpression showed marked intra-tumoral heterogeneity. The HIF-1αexpression is neither a powerful predictor of resistance to radiotherapy nor is it a poor prognostic marker in cervical carcinoma patients who are treated with radiotherapy. The expressions of cyclin A1 and cyclin B1 are neither independently associated with the response of radiation therapy nor are they associated with the prognostic parameters of uterine cervical carcinoma.
키워드
Cervix cancer;Radiotherapy;Hypoxia inducible factor 1;alpha subunit;Cyclin A;Cyclin B
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