Clinicopathological study of the expression of hsp27, pS2, cathepsin D and metallothionein in primary invasive breast cancer
Briassoulis, E. Ch
Agnantis, Niki J.
Google Scholar check
MetadataShow full item record
Expression of the hormone-related proteins hsp27, pS2, and also of cathepsin D (CD) and metallothionein (MT) was studied by immunohistochemistry and analyzed against clinical data in breast cancer. Archived material of paraffin-embedded breast carcinoma tissues from a cohort of 134 patients with primary invasive breast cancer was used. Hsp27 and pS2 (> 10% of tumor cells stained) were found to be expressed in 63.6% and 37.6% of cases, respectively, and were correlated negatively with grading (P=0.006 and 0.01) and positively with estrogen receptors (ER) (P = 0.04 and 0.04). pS2 expression was correlated with lymph node status (P = 0.02), tumor size (P=0.01), progesterone receptor (PR) content (P=0.02), hsp27 (P=0.015) and bcl-2 protein (P=0.001). An inverse relationship between pS2 expression and the expression of p53 protein (P=0.005) and proliferation-associated index MIB1 (P<0.0001) was noted. Stromal cathepsin D was positively correlated with tumor grade (P=0.01), PCNA (P-0.007), MIB1 (P=0.001) and p53 (P=0.01), and negatively with ER (P=0.04) and bcl-2 (P<0.0001). MT was correlated positively with stromal CD (P=0.007) and inversely with PgR (P=0.04). Univariate analysis showed CD expression to be a positive prognostic factor for survival (P=0.035), with borderline significance, while MT was more strongly positive (P=0.01). However, none of the proteins studied was found to be related to disease outcome in univariate analysis. Our data show that hsp27, pS2 and stromal CD expression may reflect tumor differentiation and the functional status of ER in breast cancer, but stromal CD and tumor MT expression were the only factors found that may be of limited prognostic value. © 2003 Elsevier Science Ltd. All rights reserved.
Showing items related by title, author, creator and subject.
Papageorgis, P.; Ozturk, S.; Lambert, A. W.; Neophytou, Christiana M.; Tzatsos, Alexandros; Wong, C. K.; Thiagalingam, S.; Constantinou, Andreas I. (2015)Introduction: Basal-like breast cancer (BLBC) is an aggressive subtype often characterized by distant metastasis, poor patient prognosis, and limited treatment options. Therefore, the discovery of alternative targets to ...
Prognostic significance of WNT and hedgehog pathway activation markers in cancer of unknown primary Fotopoulos, George; Goussia, Anna; Bareta, E.; Koumpis, E.; Chrisafi, S.; Bobos, M.; Malamou-Mitsi, Vassiliki D.; Fountzilas, George; Pavlidis, Nicholas; Pentheroudakis, George (2015)Background: Cancer of unknown primary (CUP) possesses distinct biology and peculiar natural history, in which the roles of the winged and hedgehog signalling pathways are unclear. Materials and methods: We constructed ...
Serous papillary peritoneal carcinoma: Unknown primary tumour, ovarian cancer counterpart or a distinct entity? A systematic review Pentheroudakis, George; Pavlidis, Nicholas (2010)Introduction: Serous peritoneal papillary carcinoma (SPPC), though managed according to ovarian cancer therapeutic principles, has been variably considered as an ovarian cancer counterpart, a peritoneal malignancy with ...