Abstract:
OBJECTIVE:Breast cancer cells can invade and generate metastasis via either lymphatic or blood vessels. Sialyl Lewis X (SLeX) and Sialyl Lewis a (SLea) are carbohydrate molecules that mediate the adhesion between tumor cells and the endothelium. These antigens are not expressed on normal breast tissue. Overexpression of SLeX and SLea is combined with poor prognosis and malignant relapse. E-cadherin mediates tumor cell-tumor cell adhesion. Partial or complete loss of E-cadherin expression has also been found to correlate with poor prognosis in breast cancer patients. Another factor involved in metastasis is Cathepsin-D, a lysosomalprotease. Cathepsin-D plays a role in cell proliferation and inhibition of tumor cell adhesion. In this study, we analysed the combined expression of SLeX, SLea, Cathepsin-D and E-cadherin in breast carcinoma in situ, invasive carcinomas without metastasis and invasive carcinomas with lymph node metastasis. MATERIALS AND METHODS:Slides of paraffin-embedded tissue of carcinoma in situ (8 DCIS, 2 CLIS), invasive carcinomas without metastasis (9 ductal, 1 lobular) and carcinomas (7 ductal, 2 lobular, 1 mucinous) with their lymph node metastasis (10 cases) were used. Breast cancer tissue was fixed and incubated with monoclonal antibodies against SLex (IgM) and SLea (IgM), Cathepsin-D (IgG) and E-cadherin (IgG). Staining reaction was performed with the ABC reagent. The intensity of immunohistochemical reaction on digital images of the slides was analyzed using a computer-aided detection system. RESULTS:We found a weak expression of both Sialyl Lewis antigens, a strong expression of E-cadherin and a moderate expression of Cathepsin-D in carcinoma in situ. The expression of both Sialyl Lewis antigens, E-cadherin and Cathepsin-D was moderate in invasive carcinomas without metastases. However, a strong expression of both Sialyl Lewis antigens and a very weak expression of E-cadherin was detected in primary carcinoma with lymph node metastases. The expression of Cathepsin-D was moderate in this tissue. E-cadherin expression was elevated whereas SLeX and Cathepsin-D expression was reduced in lymph node metastases compared to the primary tumor. CONCLUSION:Combined analysis of tumor antigens involved in adhesion of breast cancer cells showed a negative correlation between Sialyl Lewis antigens and E-cadherin as the risk of metastasis progresses. Furthermore, there were significant differences of expression of the Sialyl Lewis antigens, E-cadherin and Cathepsin-D in primary breast cancer cells and their metastases. Evaluation of a panel of markers involved in cell adhesion could be a useful method for defining the metastatic risk in breast cancer patients.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Jeschke U,Mylonas I,Shabani N,Kunert-Keil C,Schindlbeck C,Gerber B,Friese Ksubject
Has Abstractpub_date
2005-05-01 00:00:00pages
1615-22issue
3Aeissn
0250-7005issn
1791-7530journal_volume
25pub_type
杂志文章abstract:BACKGROUND/AIM:In breast cancer (BC) care, radiation therapy (RT) is an efficient treatment to control localized tumor. Radiobiological research is needed to understand molecular differences that affect radiosensitivity of different tumor subtypes and the response variability. The aim of this study was to analyze gene ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12512
更新日期:2018-05-01 00:00:00
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journal_title:Anticancer research
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journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:
更新日期:2000-11-01 00:00:00
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journal_title:Anticancer research
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更新日期:2013-02-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2005-09-01 00:00:00
abstract::CA 72-4 is a high molecular weight, pancarcinoma human tumor mucin which may play an important role in the identification (i.e., staging) and clinical management of patients with gastric carcinoma. In the present study of 242 patients with primary or recurrent gastric cancer, a higher percentage of these patients had ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2006-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1985-07-01 00:00:00
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journal_title:Anticancer research
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更新日期:2006-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
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更新日期:1989-11-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2012-08-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
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pub_type: 杂志文章
doi:
更新日期:2007-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2004-03-01 00:00:00
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pub_type: 杂志文章
doi:
更新日期:2011-11-01 00:00:00
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doi:
更新日期:2001-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2005-11-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12522
更新日期:2018-05-01 00:00:00
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journal_title:Anticancer research
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更新日期:2018-03-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1996-07-01 00:00:00
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更新日期:2017-06-01 00:00:00
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doi:
更新日期:2004-11-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
abstract::In tumor cells, doxorubicin (DOX) is excreted by P-glycoprotein (P-gp) and the multidrug resistance-associated protein (mrp). Both transporters might also be involved in cellular regulatory volume decrease (RVD). To study the hepatobiliary excretion of DOX during RVD, isolated livers of Wistar and multidrug resistance...
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更新日期:2001-07-01 00:00:00
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pub_type: 杂志文章
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更新日期:2020-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2008-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1997-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2015-10-01 00:00:00
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journal_title:Anticancer research
pub_type: 临床试验,杂志文章
doi:
更新日期:2004-05-01 00:00:00