Consistent absence of BRAF mutations in salivary gland carcinomas
Publish place: Journal of Dental Materials and Techniques، Vol: 6، Issue: 2
Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JDMT-6-2_005
تاریخ نمایه سازی: 18 تیر 1398
Abstract:
Introduction: Malignant salivary gland tumors are rare entities. Despite advances in surgery, radiation therapy and chemotherapy, the rate of the mortality and five-year survival has not been improved markedly over the last few decades. The activation of EGFR- RAS-RAF signaling pathway contributes to the initiation and progression of many human cancers, promising a key pathway for therapeutic molecules. Thus, the objective of this study was to evaluate BRAF mutations in salivary gland carcinomas. Methods: We designed PCR- RFLP (Polymerase Chain Reaction -Restriction Fragment Length Polymorphism) and screened 50 salivary gland carcinomas (SGCs) including mucoepidermoid carcinoma (MEC), adenoid cystic carcinoma (AdCC) and polymorphous low grade adenocarcinoma (PLGA) for the BRAF V600E mutation. Results: PCR-RFLP analyses demonstrated no mutation in BRAF exon 15 for SGC samples at position V600, which is the most commonly mutated site for BRAF in human cancer. Conclusions: According to our results SGCs didn’t acquire BRAF mutations that result in a constitutive activation of the signaling cascade downstream of EGFR, hence SGCs can be a good candidate for anti EGFR therapies.
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Authors
Nooshin Mohtasham
Department of Oral and Maxillofacial Pathology, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran Oral and Maxillofacial Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
Hossein Ayatollahi
Department of Hematology and Blood Bank, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
Narges Ghazi
Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
Amirhossein Jafarian
Department of Pathology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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