Detection of tumor cells in leukapheresis products from patients with breast cancer using immunocytochemical staining method.

Abstract:

:We used a combination of 4 monoclonal antibodies (BM7, BM8 against MUC1, 5D3 against CK8,18,19 and HEA125 against human epithelial antigen) and a sensitive immunocytochemical staining using cytospin preparation to identify breast tumor cells in leukapheresis products (LP). This assay allowed detection of one tumor cell in 1x10(6) mononuclear cells (MC). In clinical specimens, tumor cells were detected in LP from 6 of 42 (14.3%) patients in the adjuvant treatment group, from 2 of 11 (18.2%) patients in the neoadjuvant treatment group and from 9 of 43 (20.1%) in the group of patients with metastatic disease. Tumor cell counts ranged from 0.25-5 cells in 1x10(6) normal cells per LP. The median tumor cell concentration was higher in specimens from patients with metastatic disease (median=0.96) than in specimens from patients in the adjuvant and neoadjuvant treatment groups (median=0.5 and 0.75). No significant differences between the epithelial cell positive group and the epithelial cell negative group with respect to tumor size, lymph nodes involvement, tumor grade, histological type and receptor were found. We conclude that immunocytochemical staining of cytospin preparation is a sensitive and simple method to detect and quantitate breast cancer cells in LP.

journal_name

Arch Gynecol Obstet

authors

Lin YS,Zhong XY,Hohaus S,Kaul S,Haas R

doi

10.1007/s004040050009

subject

Has Abstract

pub_date

2000-02-01 00:00:00

pages

119-25

issue

3

eissn

0932-0067

issn

1432-0711

journal_volume

263

pub_type

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