A study of UbcH10 expression and its association with recurrence of meningiomas.

ABSTRACT

BACKGROUND: UbcH10 is an important regulator for the mitotic spindle assembly checkpoint pathway that regulates cell-cycle progression. Overexpression of UbcH10 significantly correlated with advanced tumor grade and high cell proliferation. METHODS: The expression of UbcH10 and Ki-67 in meningioma tissues were evaluated immunohistochemically in 47 patients with meningiomas. The correlation of UbcH10 immunoreactivity with clinicopathological features and the prognostic value of UbcH10 in patients were also analyzed. RESULTS: Immunohistochemistry showed an increase in UbcH10 labeling index in atypical and anaplastic meningiomas versus classical meningiomas (10.53 ± 5.79% vs. 4.23 ± 2.85%, P < 0.001). There was a positive correlation between UbcH10 and Ki-67 immunoreactivity (Spearman r = 0.77, P < 0.001). Clinicopathological evaluation suggested that UbcH10 expression was associated with tumor grade and recurrence (P < 0.05). Kaplan-Meier survival analysis and Cox multivariate analysis revealed a significant correlation between high levels of UbcH10 immunoreactivity and high rates of tumor recurrence. CONCLUSION: We conclude that UbcH10 may play important roles in the development of meningioma, high UbcH10 labeling index indicates higher grade of meningioma, and UbcH10 may be a useful molecular marker for predicting the prognosis of meningioma.