Background/aim: Angiosarcoma is a rare and aggressive soft tissue sarcoma with poor prognosis. Chemotherapy and radiotherapy do not improve the prognosis. SIRT1, a class III histone deacetylase, is up-regulated in many malignant tumours. This study aimed at exploring the role of SIRTl in angiosarcoma.
Materials and methods: The effect of suppressing SIRT1 expression with siRNA on the proliferation and invasion ability of ISO-HAS-B angiosarcoma cells was investigated. Additionally, SIRT1 expression in tissues from surgical specimens was immunohistochemically evaluated and compared to that from benign tumours.
Results: Suppression of SIRT1 expression by siRNA resulted in the down-regulation of cell growth, proliferation, migration, and invasion. An immunohistochemical analysis disclosed that SIRT1 expression in angiosarcoma was stronger than that in haemangioma.
Conclusion: SIRT1 may be involved in the invasive proliferation and malignant transformation of angiosarcoma, and may be considered a future target for angiosarcoma therapy.
Keywords: SIRT1; angiosarcoma; cell proliferation.
Copyright© 2019, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.