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Interferon-alpha/beta Receptor as a Prognostic Marker in Osteosarcoma
著者
Shimose, Shoji
NDC
医学
抄録(英)
Background: A large-scale randomized trial of adjuvant interferon-a therapy for patients with osteosarcoma has been initiated as a joint protocol by the European and American Osteosarcoma Study Group. Because the expression of functional interferon-α/β receptor is necessary for interferon-a agents to interact with osteosarcoma cells, we examined the expression of interferon-α/β receptor in a series of osteosarcoma specimens.

Methods: Forty patients with high-grade resectable osteosarcoma, from whom surgical specimens had been obtained at the time of biopsy, were included in this retrospective study. Biopsy specimens were immunohistochemically stained with anti-interferon-α/β receptor antibodies. Survival was estimated with the Kaplan-Meier method. The Cox proportional hazards model was used for multivariate analysis to determine the independent prognostic factors. Furthermore, we used Holm and Benjamini-Hochberg procedures to adjust for multiple comparisons in setting the level of significance. The median follow-up period was five years and two months (range, four to 195 months).

Results: The expression of interferon-α/β receptor was positive in eighteen (45%) of the forty patients with high-grade osteosarcoma. American Joint Committee on Cancer surgical stage IIA, a good histologic response to chemotherapy, and expression of interferon-α/β receptor correlated significantly with better disease-free survival (p < 0.05). Multivariate analysis showed that interferon-α/β receptor expression alone retained its power to predict an improved prognosis (p = 0.042). There were no significant variables after corrections for multiple comparisons.

Conclusions: Interferon-α/β receptor may be a useful marker for assessing tumor prognosis in patients with osteosarcoma and may play an important role in tumor progression. These findings are encouraging and support the ongoing clinical trials of adjuvant interferon-a therapy by the multinational Osteosarcoma Study Group. Our pilot study was based on a small sample size, and larger trials are needed to confirm this finding.

Level of Evidence: Prognostic Level II. See Instructions to Authors for a complete description of levels of evidence.
掲載誌名
The Journal of bone and joint surgery. American volume
93巻
6号
開始ページ
519
終了ページ
526
出版年月日
2011-03-16
出版者
The Journal of Bone and Joint Surgery
ISSN
0021-9355
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2011 The Journal of Bone and Joint Surgery
関連情報URL
部局名
医歯薬学総合研究科