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Immunoradiometric and Immunohistochemical Analysis of Cathepsin D in Ovarian Cancer: Lack of Association with Clinical Outcome

Overview
Journal Br J Cancer
Specialty Oncology
Date 1998 Dec 23
PMID 9862578
Citations 3
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Abstract

The aim of this study was to analyse the clinical significance of Cathepsin D (Cath D) content as determined by an immunoradiometric assay in a series of primary untreated ovarian cancers from 162 patients. In addition, immunohistochemical analysis of Cath D was also performed on a subset of 86 tumours. Cath D levels were distributed in an asymmetrical way and were skewed towards the lower values (median value 20.8 pmol mg(-1) protein, range 2.0-99.0 pmol mg(-1) protein). No correlation was found between Cath D levels and clinicopathological parameters. However, the percentage of Cath D positivity was significantly higher in oestrogen receptor-positive (57%) compared with oestrogen receptor-negative (36%) cases (P= 0.01). The percentage of Cath D-positive staining was not significantly different for both epithelial (27%) and stromal components (40%). Immunoradiometrically detected Cath D levels were not different according to Cath D stromal immunostaining (P= 0.18), while higher Cath D levels were measured in Cath D-positive than in Cath D-negative tumour epithelial cells (P = 0.027). Survival analysis was conducted on 161 primary untreated ovarian cancer patients. The 5-year overall survival rate was 57% and 55% in Cath D-positive and Cath D-negative patients respectively (P = 0.69). As far as time to progression was concerned, there was no significant difference in the survival rate of patients with either high or low Cath D content (P = 0.56). Similar results have been obtained in the subset of patients in which Cath D was analysed by immunohistochemistry. In conclusion, Cath D measurement in tumour extracts appears to have a limited usefulness in improving the prognostic characterization of ovarian cancer patients.

Citing Articles

The Potential Role of the Proteases Cathepsin D and Cathepsin L in the Progression and Metastasis of Epithelial Ovarian Cancer.

Pranjol M, Gutowski N, Hannemann M, Whatmore J Biomolecules. 2015; 5(4):3260-79.

PMID: 26610586 PMC: 4693277. DOI: 10.3390/biom5043260.


The role of the tumor stroma in ovarian cancer.

Davidson B, Trope C, Reich R Front Oncol. 2014; 4:104.

PMID: 24860785 PMC: 4026708. DOI: 10.3389/fonc.2014.00104.


Cathepsin D expression levels in nongynecological solid tumors: clinical and therapeutic implications.

Leto G, Tumminello F, Crescimanno M, Flandina C, Gebbia N Clin Exp Metastasis. 2004; 21(2):91-106.

PMID: 15168727 DOI: 10.1023/b:clin.0000024740.44602.b7.

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