PMID: 11920599Mar 29, 2002Paper

Prediction of chemotherapeutic response by collagen gel droplet embedded culture-drug sensitivity test in human breast cancers

International Journal of Cancer. Journal International Du Cancer
Yuuki TakamuraShinzaburo Noguchi

Abstract

Collagen gel droplet embedded culture-drug sensitivity test (CD-DST) is the newly developed in vitro chemosensitivity test that has several advantages over the conventional ones. The aim of the present study is to examine the clinical usefulness of this test in the prediction of response to chemotherapy in breast cancer patients. Seventy patients with primary (n = 45) or locally recurrent (n = 25) breast cancers were recruited, and each patient underwent tumor biopsy before chemotherapy. The biopsy specimens were used for CD-DST and immunohistological examination of 6 biological markers (P-gp, erbB2, p53, BCL2, MIB1 and ER-alpha). As chemotherapy, cyclophosphamide 600 mg/m(2) plus epirubicin 60 mg/m(2) q3w (CE, n = 28) or docetaxel 60 mg/m(2) q3w (DOC, n = 42) was given. Interpretable results using the CD-DST assay were obtained from 84.3% (59/70) of tumor specimens studied. Of the 18 tumors diagnosed as CE sensitive by CD-DST, 15 (83.3%) exhibited a response to CE therapy and none of the 5 tumors diagnosed as CE resistant by CD-DST exhibited a response to CE therapy. Of the 14 tumors diagnosed as DOC sensitive by CD-DST, 13 (92.9%) exhibited a response to DOC therapy and only one of the 22 tumors diagnosed as DOC resistant by ...Continue Reading

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Citations

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