Aurora-B protein expression is linked to initial response to taxane-based first-line chemotherapy in stage III ovarian carcinoma.
J Clin Pathol
; 65(1): 29-35, 2012 Jan.
Article
em En
| MEDLINE
| ID: mdl-22011448
ABSTRACT
AIMS:
Aurora kinases are central to cell proliferation and considered to be prognostic/predictive markers and therapeutic targets for epithelial cancers. Here, the prognostic/predictive value of Aurora-B protein expression was evaluated in patients with serous, FIGO stage III ovarian carcinomas treated with taxane- or platinum-based first-line chemotherapy (1st-CTx).METHODS:
Immunohistochemistry was performed on tissue microarrays, including 80 ovarian carcinomas and 18 non-neoplastic ovaries, previously characterised for Aurora-A protein expression. None or marginal (score 0+1), moderate (score 2) and strong (score 3) Aurora-B protein expression was correlated with clinico-pathological parameters as well as recurrence-free survival (RFS) and overall survival (OS).RESULTS:
While non-neoplastic ovaries were negative for Aurora-B, almost all (79/80; 99%) ovarian carcinomas exhibited Aurora-B positive tumour cells, with score 1 in 41/80 (51%), score 2 in 23/80 (29%) and score 3 in 15/80 (19%) cases. Aurora-B and Aurora-A protein expression correlated significantly (p=0.002). In optimal debulked patients, Aurora-B protein expression was associated with RFS (p=0.011, n=53) and marginally with OS (p=0.460; n=53). Moreover, Aurora-B protein expression was predictive for RFS of optimal debulked patients with taxane-based (p=0.006; n=32), but not with platinum-based (p=0.720; n=20) 1st-CTx. Aurora-B protein expression was not linked to OS in optimal debulked patients with either of the two 1st-CTx.CONCLUSIONS:
Aurora-B protein expression frequently occurs in serous, FIGO stage III ovarian carcinomas, making it a 'drugable' molecular target in the majority of ovarian carcinoma patients. Moreover, Aurora-B protein expression is predictive for initial response to taxane-based 1st-CTx in optimal debulked, late stage ovarian carcinoma patients.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Ovarianas
/
Carcinoma
/
Biomarcadores Tumorais
/
Proteínas Serina-Treonina Quinases
/
Taxoides
/
Antineoplásicos Fitogênicos
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Middle aged
País/Região como assunto:
Europa
Idioma:
En
Revista:
J Clin Pathol
Ano de publicação:
2012
Tipo de documento:
Article