MTA1 Expression in Benign and Malignant Salivary gland Tumors

Authors

  • Ali Dehghani -Nazhvani Department of Oral and Maxillofacial Pathology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
  • Azadeh Andisheh-Tadbir Prevention of Oral and Dental Disease Research Center, Department of Oral and Maxillofacial Pathology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
  • Bijan Khademi Department of Otorhinolaryngology, Khalili Hospital, Shiraz Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran.
  • Hosein Mirhadi Department of Endodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
  • Mohammad Javad Ashraf Department of Pathology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
  • Shima Torabi-Ardekani Department of Oral and Maxillofacial Pathology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
Abstract:

Introduction: Salivary gland tumors (SGTs) are important parts of human neoplasms. The most common SGT is pleomorphic adenoma and the most common malignant SGTs are mucoepidermoid carcinoma and adenoid cystic carcinoma (ACC). Metastasis-associated genes 1 (MTA1), a member of the nucleosome remodeling and histone deacetylation complex, is one newly discovered gene which recruits histone deacetylation, causing ATP-dependent chromosome remodeling, and regulating transcription. MTA1 had been shown to be overexpressed in malignant tumors with the enhancement of invasion and metastasis.   Materials and Methods: Fifty-six samples of salivary tumors from the Khalili Hospital archive, including 20 cases of pleomorphic adenoma, 17 cases of mucoepidermoid carcinoma, 19 cases of ACC, and 23 cases of normal salivary gland tissues were chosen for immunohistochemical analysis of MTA1.   Results: MTA1 expression in the malignant tumors was significantly higher than that in pleomorphic adenoma (P0.05).   Conclusion:  Our findings demonstrate that MTA1 was significantly overexpressed in malignant salivary gland neoplasm in comparison to a lower level in benign pleomorphic adenoma, suggesting that MTA1 protein might be involved in carcinogenesis.

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Journal title

volume 28  issue 1

pages  51- 59

publication date 2016-01-01

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