title: Association between tumor tissue TIMP-1 levels and objective response to first-line chemotherapy in metastatic breast cancer.
abstract: In a previous study from our laboratory, high tumor levels of tissue inhibitor of metalloproteinases-1 (TIMP-1) have been associated with an adverse response to chemotherapy in metastatic breast cancer suggesting that TIMP-1, which is known to inhibit apoptosis, may be a new predictive marker in this disease. The purpose of this study was to investigate the association between TIMP-1 and objective response to chemotherapy in an independent patient population consisting of patients with metastatic breast cancer from Sweden and Denmark. TIMP-1 was measured using ELISA in 162 primary tumor extracts from patients who later developed metastatic breast cancer and these levels were related to the objective response to first-line chemotherapy. Increasing levels of TIMP-1 were associated with a decreasing probability of response to treatment, reaching borderline significance (OR = 1.59, 95% CI: 0.97-2.62, P = 0.07). This OR is very similar to the result from our previous study. Increasing levels of TIMP-1 were also associated with a shorter disease-free survival and overall survival, however, not statistically significant. The results from the present study support previous data that TIMP-1 is associated with objective response to chemotherapy for metastatic breast cancer.
authors: Department of Oncology, Clinical Sciences, Barngatan 2B, Lund University, 221 85 Lund, Sweden. marie.klintman@med.lu.se
authors: Marie
authors: M
authors: Klintman
authors: Sidse
authors: S
authors: Ørnbjerg Würtz
authors: Ib Jarle
authors: IJ
authors: Christensen
authors: Pernille
authors: P
authors: Braemer Hertel
authors: Mårten
authors: M
authors: Fernö
authors: Martin
authors: M
authors: Malmberg
authors: Henning
authors: H
authors: Mouridsen
authors: Frederik
authors: F
authors: Cold
authors: Anne-Sofie
authors: AS
authors: Schrohl
authors: John A
authors: JA
authors: Foekens
authors: Per
authors: P
authors: Malmström
authors: Nils
authors: N
authors: Brünner
mesh_terms: D000328:Adult; D000970:Antineoplastic Agents / Q000627:therapeutic use; D014408:Biomarkers, Tumor / Q000032:analysis*; D001943:Breast Neoplasms / Q000235:genetics / Q000378:metabolism* / Q000401:mortality; D018572:Disease-Free Survival; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D008875:Middle Aged; D011379:Prognosis; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000032:analysis / Q000378:metabolism*; D016896:Treatment Outcome
chemical_list: D000970:Antineoplastic Agents; D014408:Biomarkers, Tumor; D019715:Tissue Inhibitor of Metalloproteinase-1