EXPRESSION OF TRANSFORMING GROWTH-FACTOR-ALPHA, AMPHIREGULIN AND CRIPTO-1 IN HUMAN BREAST CARCINOMAS

被引:116
作者
QI, CF
LISCIA, DS
NORMANNO, N
MERLO, G
JOHNSON, GR
GULLICK, WJ
CIARDIELLO, F
SAEKI, T
BRANDT, R
KIM, N
KENNEY, N
SALOMON, DS
机构
[1] NCI,TUMOR IMMUNOL & BIOL LAB,TUMOR GROWTH FACTOR SECT,DIV CANC BIOL DIAG & CTR,BETHESDA,MD 20892
[2] US FDA,DIV CYTOKINE BIOL,BETHESDA,MD 20892
[3] HAMMERSMITH HOSP,IMPERIAL CANC RES FUND,MOLEC ONCOL LAB,LONDON W12 0HS,ENGLAND
[4] UNIV NAPLES,FAC MED & CHIRURG 2,CATTEDRA ONCOL MED,I-80131 NAPLES,ITALY
[5] NATL SHIKOKU CANC CTR HOSP,MATSUYAMA,EHIME,JAPAN
[6] OSPED SAN GIOVANNI VECCHIO,SERV ANAT PATOL,USL 1,I-10123 TURIN,ITALY
关键词
D O I
10.1038/bjc.1994.174
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
The expression of three epidermal growth factor (EGF)-related peptides, transforming growth factor alpha (TGF-alpha), amphiregulin (AR) and cripto-1 (CR-1), was examined by immunocytochemistry (ICC) in 68 primary infiltrating ductal (IDCs) and infiltrating lobular breast carcinomas (ILCs), and in 23 adjacent non-involved human mammary tissue samples. Within the 68 IDC and ILC specimens, 54 (79%) expressed immunoreactive TGF-alpha, 52 (77%) expressed AR and 56 (82%) expressed CR-1. Cytoplasmic staining was observed with all of the antibodies, and this staining could be eliminated by preabsorption of the antibodies with the appropriate peptide immunogen. Cytoplasmic staining with all of the antibodies was confined to the carcinoma cells, since no specific immunoreactivity could be detected in the surrounding stromal or endothelial cells. In addition to cytoplasmic reactivity, the AR antibody also exhibited nuclear staining in a number of the carcinoma specimens. No significant correlations were found between the percentage of carcinoma cells that were positive for TGF-alpha, AR or CR-1 and oestrogen receptor status, axillary lymph node involvement, histological grade, tumour size, proliferative index, loss of heterozygosity on chromosome 17p or overall patient survival. However, a highly significant inverse correlation was observed between the average percentage of carcinoma cells that expressed AR in individual tumours and the presence of a point-mutated p53 gene. Likewise, a significantly higher percentage of tumour cells in the ILC group expressed AR as compared with the average percentage of tumour cells that expressed AR in the IDC group. Of the 23 adjacent, non-involved breast tissue samples, CR-1 could be detected by ICC in only three (13%), while TGF-alpha was found in six (26%) and AR in ten (43%) of the non-involved breast tissues. These data demonstrate that breast carcinomas express multiple EGF-related peptides and show that the differential expression of CR-1 in malignant breast epithelial cells may serve as a potential tumour marker for breast cancer.
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收藏
页码:903 / 910
页数:8
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