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Frequent oncogenic BRAF V600E mutation in odontogenic keratocyst

 Yong Hoon Cha  ;  Eunae Sandra Cho  ;  Hee Eun Kang  ;  Jaemin Ko  ;  Woong Nam  ;  Hyung Jun Kim  ;  Nam Hee Kim  ;  Hyun Sil Kim  ;  In-Ho Cha  ;  Jong In Yook 
 ORAL ONCOLOGY, Vol.74 : 62-67, 2017 
Journal Title
Issue Date
BRAF V600E ; Keratocystic odontogenic tumor ; Mutation ; Odontogenic keratocyst
OBJECTIVES: Odontogenic keratocyst (OKC), also known as keratocystic odontogenic tumor (KCOT), has clinical significance due to its high incidence as well as high recurrence rate after surgical enucleation. Current clinical management for OCK is entirely dependent on surgical approach. While various genetic alterations, such as PTCH1 mutation and loss of heterozygosity in tumor suppressor genes, have been reported, the molecular background of OKC is not well-understood. Although recent identification of BRAF V600E mutation and subsequent activation of mitogen-activated protein kinase (MAPK) pathway in ameloblastoma and odontogenic tumors provide additional options with targeted therapeutics, the molecular background of OKC is not well understood. MATERIALS AND METHODS: In this study, we examined BRAF V600E mutation from paraffin embedded OKC samples by tumor cell enriched microdissection and TA cloning of amplified DNA. We further examined the relationship between BRAF V600E mutation and clinical parameters. RESULTS: We found frequent BRAF V600E mutation in OKC (24 of 38 samples, 63.2%). However, BRAF V600E mutational status is not related with clinical indexes such as size, location, and recurrence. In orthokeratinized odontogenic cyst, there is one case of BRAF 600E mutation from 11 samples (9.1%). CONCLUSION: These results indicate that BRAF V600E mutation occurs in OKCs at a high rate and plays an important role in the pathogenesis of OKCs.
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Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
5. Research Institutes (연구소) > Oral Cancer Research Institute (구강종양연구소) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Oral Pathology (구강병리학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Surgery (구강악안면외과학교실) > 1. Journal Papers
Yonsei Authors
Ko, Jaemin(고재민)
Kim, Nam Hee(김남희) ORCID logo https://orcid.org/0000-0002-3087-5276
Kim, Hyun Sil(김현실) ORCID logo https://orcid.org/0000-0003-3614-1764
Kim, Hyung Jun(김형준) ORCID logo https://orcid.org/0000-0001-8247-4004
Nam, Woong(남웅) ORCID logo https://orcid.org/0000-0003-0146-3624
Yook, Jong In(육종인) ORCID logo https://orcid.org/0000-0002-7318-6112
Cho, Eunae(조은애산드라) ORCID logo https://orcid.org/0000-0002-0820-3019
Cha, Yong Hoon(차용훈) ORCID logo https://orcid.org/0000-0003-1761-3260
Cha, In Ho(차인호) ORCID logo https://orcid.org/0000-0001-8259-2190
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