Overexpression and extra-mitochondrial localization of the chaperonin Hsp60 in ameloblastoma.

Autor: Rodríguez-Vázquez M; Departmento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico., Muñiz-Lino MA; División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Unidad Xochimilco, Mexico City, Mexico., Shibayama M; Departmento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico., Cruz-Tapia RO; Departamento de Patología y Medicina Bucal, Facultad de Odontología, Universidad Nacional Autónoma de México, Mexico City, Mexico., Portilla-Robertson J; Departamento de Patología y Medicina Bucal, Facultad de Odontología, Universidad Nacional Autónoma de México, Mexico City, Mexico., Ortiz-García JZ; Departmento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico., Martínez-Ricardez AL; Departmento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico., Licéaga-Escalera C; Departamento de Cirugía Maxilofacial, Hospital Juárez de México Mexico City, Mexico., Rodríguez MA; Departmento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Mexico City, Mexico. Electronic address: marodri@cinvestav.mx.
Jazyk: angličtina
Zdroj: Journal of oral biosciences [J Oral Biosci] 2021 Sep; Vol. 63 (3), pp. 271-277. Date of Electronic Publication: 2021 May 16.
DOI: 10.1016/j.job.2021.05.001
Abstrakt: Objectives: Ameloblastoma is an odontogenic neoplasm of the mandible and maxilla with various histological types and subtypes. It has been reported that some ameloblastomas could arise from dentigerous cyst walls; thus, the development of ameloblastoma from dentigerous cysts may be due to differential protein expression. Our aim was to identify a membrane protein that is differentially expressed in ameloblastomas with respect to dentigerous cysts.
Methods: We analyzed the SDS-PAGE profiles of membrane proteins from ameloblastomas and dentigerous cysts. The protein in a band present in the ameloblastoma sample, but apparently absent in the dentigerous cyst sample was identified via mass spectrometry as the chaperonin Hsp60. We used western blotting and immunohistochemistry to analyze its overexpression and localization in ameloblastoma.
Results: We found a differential band of 95 kDa in the membrane proteins of ameloblastoma. In this band, the chaperonin Hsp60 was identified, and its overexpression was corroborated using western blotting and immunohistochemistry. Hsp60 was localized in the plasma membrane of all ameloblastoma samples studied; in addition, it was found in the cell nucleus of the plexiform subtype of conventional ameloblastoma.
Conclusions: Our results suggest that Hsp60 may be involved in ameloblastoma development, and could therefore be a potential therapeutic target for ameloblastoma treatment.
Competing Interests: Conflicts of interest All authors declare that there are no conflicts of interest.
(Copyright © 2021 Japanese Association for Oral Biology. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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