Abstract:
:A recent large multi-centre study convincingly confirmed previous observations that the SYT-SSX1 fusion type, compared to SYT-SSX2, of synovial sarcoma is associated with a worse clinical outcome. Apart from the clinical impact, this fact also suggests (1) that the SYT-SSX fusion gene may influence molecular mechanisms involved in tumour growth and progression; and (2) that the SYT-SSX1 fusion type has a stronger influence on these mechanisms than SYT-SSX2. The nature of the underlying mechanisms is, however, still unknown. In this study we made use of the SYT-SSX1 vs SYT-SSX2 concept to investigate whether major, tumour relevant, and growth regulatory proteins (e.g. cyclins and cyclin-dependent kinases) may be involved. Using Western blotting analysis on 74 fresh, fusion variant-typed, tumour samples from localized synovial sarcoma, we found a significant correlation between SYT-SSX1 and high expression of cyclin A (P=0.003) and D1 (P=0.025). Our data suggest that SYT-SSX may influence the cell cycle machinery, and that the more aggressive phenotype of the SYT-SSX1 variant is due to an accelerated tumour cell proliferation.
journal_name
Oncogenejournal_title
Oncogeneauthors
Xie Y,Skytting B,Nilsson G,Grimer RJ,Mangham CD,Fisher C,Shipley J,Bjerkehagen B,Myklebost O,Larsson Odoi
10.1038/sj.onc.1205700subject
Has Abstractpub_date
2002-08-22 00:00:00pages
5791-6issue
37eissn
0950-9232issn
1476-5594journal_volume
21pub_type
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