Predictive value of syndecan-1 expression for the response to neoadjuvant chemotherapy of primary breast cancer.

Abstract:

BACKGROUND:The overexpression of syndecan-1 in breast carcinomas correlates with poorer prognosis and an aggressive phenotype. The effect of syndecan-1 expression on tumor response to neoadjuvant chemotherapy was determined in locally advanced breast cancer. PATIENTS AND METHODS:Semi-quantitative syndecan-1 immunohistochemistry was performed in pre-chemotherapy breast cancer biopsies of 37 patients undergoing high-dose neoadjuvant treatment with cyclophosphamide and epirubicin. RESULTS:43.2% of breast carcinomas stained positive for syndecan-1. Syndecan-1 expression was more frequent in ductal invasive carcinomas than in other histological types (p=0.062). The pathological response to chemotherapy was decreased in syndecan-1-positive patients: 37.5% of syndecan-1-positive vs. 19% of syndecan-1-negative patients attained pathologically "no change". No syndecan-1-positive patient showed complete remission. Also, a correlation between syndecan-1 immunostaining intensity and response to chemotherapy was observed. Of the responding tumors, none showed strong syndecan-1 expression (Score 3+), whereas 20% of the non-responding tumors were strongly syndecan-1-positive. CONCLUSION:Syndecan-1-expressing breast carcinomas show a trend towards a decreased response to chemotherapy.

journal_name

Anticancer Res

journal_title

Anticancer research

authors

Götte M,Kersting C,Ruggiero M,Tio J,Tulusan AH,Kiesel L,Wülfing P

subject

Has Abstract

pub_date

2006-01-01 00:00:00

pages

621-7

issue

1B

eissn

0250-7005

issn

1791-7530

journal_volume

26

pub_type

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