Abstract
Degradation of extracellular matrix by tumor-associated proteases can promote cell invasion and metastasis. This study assessed the prognostic role of MMP2, MMP9 metalloproteinases, and of the metalloproteinase inhibitor TIMP2, related to disease-free survival (DFS), in soft tissue sarcoma (STS) patients. Level and distribution of MMP2, MMP9, and TIMP2 expression were evaluated on 73 biopsies by immunohistochemistry and immunoblotting. Biopsies included 29 liposarcomas, 29 synovial sarcomas, and 15 malignant peripheral nerve sheath tumors (MPNST). Association between DFS and overall survival with different variables was assessed. In terms of DFS, increased MMP2 reactivity and lack of TIMP2 expression were significant for poor prognosis in all samples (P = 0.0005 and P = 0.006 respectively). MMP2 correlated to histologic grade (P = 0.005). Lack of TIMP2 expression was a poor prognostic factor for DFS in synovial sarcoma (P = 0.009), while MMP2 and MMP9 correlated with metastasis (P = 0.008 and P = 0.005, respectively) and grade (P = 0.001 and P = 0.04 respectively) in liposarcoma. These prognostic markers that influence growth and spread of tumor cells might be useful to define tumor aggressiveness and risk of the metastasic event.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.