Angiogenin is up-regulated in the nucleus and cytoplasm in human primary breast carcinoma and is associated with markers of hypoxia but not survival

被引:40
作者
Campo, L
Turley, H
Han, C
Pezzella, F
Gatter, KC
Harris, AL
Fox, SB [1 ]
机构
[1] Univ Oxford, John Radcliffe Hosp, Dept Clin Lab Sci, Oxford OX3 9DU, England
[2] John Radcliffe Hosp, Weatherall Inst Mol MEd, Canc Res UK Mol Oncol Lab, Oxford OX3 9DS, England
关键词
angiogenin; hypoxia; breast cancer; ribonuclease;
D O I
10.1002/path.1740
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Angiogenin, a 14.2 kD polypeptide that was originally noted for its angiogenic activity, is now increasingly recognized to have a multiplicity of biological roles in both physiological and pathological conditions. In breast cancer, there are conflicting studies questioning the role of angiogenin. Here, the pattern of expression of angiogenin during the transition from normal breast tissue to ductal carcinoma in situ and invasive carcinoma is reported together with the correlates between the level of angiogenin in 239 invasive carcinomas and standard clinicopathological parameters, hypoxia-inducible factor (HIF)-1 alpha and the HIF-1 alpha target gene DEC-1. This study shows that angiogenin expression is up-regulated in the cytoplasmic and nuclear compartments in in situ carcinoma and invasive carcinoma compared with normal breast tissue and that angiogenin expression in invasive carcinomas is significantly positively associated with high tumour grade (p = 0.03), positive oestrogen receptor (ER) status (p = 0.01), HIF-1 alpha (p = 0.001) and DEC 1 (p = 0.001), but not with patient age (p = 0.8), tumour size (p = 0.25), lymph node status (p = 0.69), epidermal growth factor receptor (p = 0.56) or microvessel density (p = 0.32). No difference in relapse-free (P = 0.26) or overall (p = 0.63) survival was observed in patients stratified by angiogenin expression. This study suggests that angiogenin may be important in breast cancer progression and that, through its relationship with ER, it may be a target for tamoxifen. Copyright (c) 2005 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
引用
收藏
页码:585 / 591
页数:7
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