Immunohistochemical analysis of Midkine expression in human prostate carcinoma

被引:77
作者
Konishi, N [1 ]
Nakamura, M
Nakaoka, S
Hiasa, Y
Cho, M
Uemura, H
Hirao, Y
Muramatsu, T
Kadomatsu, K
机构
[1] Nara Med Univ, Dept Pathol 2, Nara 6348521, Japan
[2] Nara Med Univ, Dept Urol, Nara 6348521, Japan
[3] Nagoya Univ, Sch Med, Dept Biochem, Nagoya, Aichi 466, Japan
关键词
Midkine; prostate cancer; prostatic intraepithelial neoplasia immunohistochemistry;
D O I
10.1159/000012039
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Midkine (MK) is a growth/differentiation factor frequently expressed at high levels in some types of human malignancies. To investigate whether MK is a useful marker in prostate carcinogenesis, immunohistochemical analysis was performed on samples of both latent and clinical prostate cancers of various stages, as well as on specimens of normal gland and prostatic intraepithelial neoplasia (PIN), Of the 80 clinical cancers examined, 69 specimens (86.3%) were immunoreactive for MK, with metastatic lesions generally showing higher expression than the corresponding primaries; normal prostate tissues were negative or showed only weak staining. Midkine was also detected in 12 of 15 latent cancers (80%) and in 12 of 16 cases of PIN (75%). In sections of whole prostate, MK showed variable expression through tumorous sections, probably in reflection of heterogeneous cell populations, The results demonstrate the possible value of MK as a marker for early and latent disease, as well as for more advanced clinical stages of prostate cancer.
引用
收藏
页码:253 / 257
页数:5
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