Up-regulation of cyclooxygenase-2 in squamous carcinogenesis of the esophagus.
Up-regulation of cyclooxygenase-2 in squamous carcinogenesis of the esophagus.
复制标题
食管鳞状细胞癌发生过程中环氧合酶-2 的上调。
DOI:
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发表时间:
2000
影响因子:
11.5
通讯作者:
Morito Monden
中科院分区:
文献类型:
--
作者:
A. Shamma;Hirofumi Yamamoto;Y. Doki;J. Okami;M. Kondo;Y. Fujiwara;Masahiko Yano;M. Inoue;Nariaki Matsuura;Hitoshi Shiozaki;Morito Monden
Cyclooxygenase-2 (COX-2) is overexpressed in various types of human malignancies including squamous cell carcinomas (SCCs) of the esophagus, but little is known about COX-2 expression in premalignant esophageal squamous dysplasia. To elucidate the role of COX-2 in esophageal carcinogenesis, we examined the expression of this enzyme in normal squamous epithelium (n = 42), squamous dysplasia [high-grade dysplasia (HGD, n = 41; low-grade dysplasia (LGD, n = 33)]; carcinoma in situ (n = 16), mucosal invasive carcinoma (n = 18), and advanced SCC (n = 45). Immunohistochemistry showed a significantly high COX-2 expression in HGD compared with other lesions. The COX-2 score, an index determined by intensity and positivity of COX-2 staining (maximum 3.0), was 0.29 +/- 0.04 in normal esophagus, 1.75 +/- 0.11 in LGD, 2.89 +/- 0.05 in HGD, 2.17 +/-0.18 in CIS, 1.95 +/- 0.22 in mucosal invasive carcinoma, and 1.81 +/- 0.08 in advanced SCC. Results of reverse transcription-PCR assays confirmed those obtained by immunohistochemistry. COX-2 expression correlated with proliferation activity assessed by the proliferating cell nuclear antigen index in dysplastic lesions (P = 0.001) but not in SCCs. COX-2 expression in SCC did not correlate with various clinicopathological parameters including prognosis. Our results indicate that COX-2 is a sensitive marker for HGD and suggest that COX-2 may be involved in early stages of squamous carcinogenesis of the esophagus.
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DOI:
10.1093/jnci/90.6.455
发表时间:
1998-03-18
期刊:
JOURNAL OF THE NATIONAL CANCER INSTITUTE
影响因子:
--
作者:
Hwang, D;Scollard, D;Levine, E
通讯作者:
Levine, E
影响因子:
11.2
作者:
H. Sano;Y. Kawahito;R. Wilder;A. Hashiramoto;S. Mukai;K. Asai;S. Kimura;H. Kato;M. Kondo;T. Hla
通讯作者:
H. Sano;Y. Kawahito;R. Wilder;A. Hashiramoto;S. Mukai;K. Asai;S. Kimura;H. Kato;M. Kondo;T. Hla
影响因子:
5
作者:
Wannowius M;Karakus E;Geyer J
通讯作者:
Geyer J
DOI:
--
发表时间:
1998
期刊:
Cancer research.
影响因子:
--
作者:
Ciaparrone,M;Yamamoto,H;Yao,Y;Sgambato,A;Cattoretti,G;Tomita,N;Monden,T;Rotterdam,H;Weinstein,IB
通讯作者:
Weinstein,IB
影响因子:
29.4
作者:
Singer, II;Kawka, DW;Stenson, WF
通讯作者:
Stenson, WF