Journal of investigative and clinical dentistry · 2017
Kallikrein-related peptidase expression in odontogenic cysts and tumors: An immunohistochemical comparative study.
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Darling Mark Roger, Woodford Rebecca, Cuddy Karl Kevin, Jackson-Boeters Linda, Hayter Alyssa, Inkaran Jeyanth, Diamandis Eleftherios P, Khan Zia
Аннотация
AIM: The aim of the present study was to profile the expression of human kallikrein (KLK)-related peptidases (KLK) in odontogenic lesions.
METHODS: Paraffin-embedded, formalin-fixed, non-odontogenic (control) and odontogenic lesions were stained for KLK using a standard immunohistochemical technique. The intensity and proportion of epithelial cells stained was scored. Reverse transcription-polymerase chain reaction was utilized to evaluate KLK 1-15 mRNA expression in ameloblastomas.
RESULTS: KLK 3, 4, 9, 11, and 14 were present in all lesions. KLK 3 staining was increased in ameloblastomas and keratocystic odontogenic tumors. KLK 5 was present only in Keratocystic odontogenic tumor. KLK 6 was significantly higher in ameloblastomas than in other lesions. For KLK 7, keratocystic odontogenic tumors and nasopalatine duct cysts were significantly different. KLK 6, 8, 10, 11, and 13 were significantly higher in ameloblastomas than in other lesions. KLK 9 was increased in keratocystic odontogenic tumors and dentigerous cysts. The expression of KLK 1, 4, 7, 8, 10, and 12 mRNA was found in ameloblastomas.
CONCLUSION: The results suggested that KLK 6, 8, 10, and 13 could be involved in the progression of ameloblastomas. KLK 10 could have a greater role in odontogenic lesions, rather than non-odontogenic lesions. Future studies aim to define the specific roles of KLK cascades in odontogenic lesions.
METHODS: Paraffin-embedded, formalin-fixed, non-odontogenic (control) and odontogenic lesions were stained for KLK using a standard immunohistochemical technique. The intensity and proportion of epithelial cells stained was scored. Reverse transcription-polymerase chain reaction was utilized to evaluate KLK 1-15 mRNA expression in ameloblastomas.
RESULTS: KLK 3, 4, 9, 11, and 14 were present in all lesions. KLK 3 staining was increased in ameloblastomas and keratocystic odontogenic tumors. KLK 5 was present only in Keratocystic odontogenic tumor. KLK 6 was significantly higher in ameloblastomas than in other lesions. For KLK 7, keratocystic odontogenic tumors and nasopalatine duct cysts were significantly different. KLK 6, 8, 10, 11, and 13 were significantly higher in ameloblastomas than in other lesions. KLK 9 was increased in keratocystic odontogenic tumors and dentigerous cysts. The expression of KLK 1, 4, 7, 8, 10, and 12 mRNA was found in ameloblastomas.
CONCLUSION: The results suggested that KLK 6, 8, 10, and 13 could be involved in the progression of ameloblastomas. KLK 10 could have a greater role in odontogenic lesions, rather than non-odontogenic lesions. Future studies aim to define the specific roles of KLK cascades in odontogenic lesions.