Correlation of MTS1/p16 and nm23 mRNA expression with survival in patients with peripheral synovial sarcoma
Background And Objectives:
Tumor suppressor gene MTS1/p16 (cyclin-dependent kinase-4 inhibitor) and a putative tumor metastasis suppressor gene nm23 (nucleoside diphosphate A kinase) have been identified in a variety of human tumors but have not been well studied in mesenchymal neoplasms.
Methods:
Expression of nm23 and MTS1 mRNA was determined by quantitative analysis from paraffin-embedded tumor tissue. The series comprised 31 patients with localized primary synovial sarcoma of soft tissues who were followed for a median of 83 months.
Results:
Neither MTS1 nor nm23 expression levels correlated with the patient's age or sex, tumor type, depth, size, mitotic rate, or extent of tumor necrosis. In addition, there was no correlation between MTS1 and nm23 levels. Patients' survival was not related to sex, age, tumor type, location, mitotic rate, or MTS1 mRNA level. The only factors that correlated with poor survival in multivariate analysis were the presence of extensive tumor necrosis (> 15%) and higher levels of nm23 mRNA.
Conclusions:
Our results suggest that increased expression level of nm23 mRNA may be implicated in the mechanism of tumor progression and is associated with poor survival in patients with synovial sarcoma.
Insights
High nm23 mRNA levels indicate poor survival in synovial sarcoma patients. MTS1/p16 gene expression did not correlate with survival outcomes in this soft tissue tumor study.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Mesenchymal neoplasms, including synovial sarcoma, have limited research on tumor suppressor genes.
- MTS1/p16 and nm23 are known tumor suppressors in various cancers.
- Their role in synovial sarcoma progression and patient outcomes is largely uncharacterized.
Purpose of the Study:
- To investigate the expression of MTS1/p16 and nm23 mRNA in synovial sarcoma.
- To determine the correlation between MTS1/p16 and nm23 expression and patient survival.
- To identify prognostic factors for localized primary synovial sarcoma.
Main Methods:
- Quantitative analysis of MTS1 and nm23 mRNA expression from paraffin-embedded synovial sarcoma tissues.
- Study included 31 patients with localized primary soft tissue synovial sarcoma.
- Multivariate analysis was used to assess survival correlations.
Main Results:
- Neither MTS1 nor nm23 mRNA levels correlated with patient demographics, tumor characteristics, or MTS1/nm23 co-expression.
- MTS1 mRNA levels did not correlate with patient survival.
- Increased nm23 mRNA levels and extensive tumor necrosis (>15%) were associated with poor survival.
Conclusions:
- Elevated nm23 mRNA expression may play a role in synovial sarcoma progression.
- nm23 mRNA levels are a potential prognostic marker for poor survival in synovial sarcoma patients.
- Further research into nm23's mechanism in tumor progression is warranted.
