Abstract:
AIMS:Matrix metalloproteases (MMPs) and their inhibitors (TIMPs) play an essential role in the degradation of stromal connective tissue and basement membrane components. The aim of this study was to determine whether the dynamic analysis of these components can help to predict tumour aggressiveness. METHODS AND RESULTS:An immunohistochemical study was performed using tissue arrays and specific antibodies against MMPs -1, -2, -7, -9, -11, -13 and -14 and TIMPs -1, -2 and -3. More than 5000 determinations on cancer specimens from 124 patients with invasive breast cancer were performed on the tumour centre core as well as on the invasive front. Immunostaining for MMPs/TIMPs on mononuclear inflammatory cells (MICs) was evaluated. To identify specific groups of tumours with distinct expression profiles, data obtained from both MICs populations were analysed by unsupervised hierarchical cluster analysis. When compared with MICs at the invasive front, intratumour MICs more frequently showed expression of MMP-7 and -1 and TIMP-3, but less frequently expression of MMP-9 and -11 and TIMP-2. CONCLUSIONS:Our data led us to consider the need of further studies in order to identify subsets of MICs and other protein elements of the microenvironment as attractive targets for new therapeutic strategies against cancer.
journal_name
Histopathologyjournal_title
Histopathologyauthors
González LO,González-Reyes S,Marín L,González L,González JM,Lamelas ML,Merino AM,Rodríguez E,Pidal I,del Casar JM,Andicoechea A,Vizoso Fdoi
10.1111/j.1365-2559.2010.03723.xsubject
Has Abstractpub_date
2010-12-01 00:00:00pages
862-76issue
6eissn
0309-0167issn
1365-2559journal_volume
57pub_type
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