KMT2 (MLL) family of methyltransferases in head and neck squamous cell carcinoma : a systematic review

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Bibliographic Details
Main Author: Santos, Marcos Ezequiel da Silva
Publication Date: 2023
Other Authors: Abreu, Anna Karolina de Carvalho, Silva, Fabio Willian Martins da, Ferreira, Elaine Barros, Reis, Paula Elaine Diniz dos, Ramos, Doralina do Amaral Rabello
Format: Article
Language: eng
Source: Repositório Institucional da UnB
Download full: http://repositorio.unb.br/handle/10482/52463
https://doi.org/10.1002/hed.27597
https://orcid.org/0000-0002-5282-7785
https://orcid.org/0000-0001-6953-6901
https://orcid.org/0000-0001-6654-5239
https://orcid.org/0000-0003-0428-834X
https://orcid.org/0000-0002-9782-3366
https://orcid.org/0000-0002-6272-6558
Summary: Background: The involvement of the KMT2 methyltransferase family in the pathogenesis of head and neck squamous cell carcinoma (HNSCC) remains elusive. Method: This study adhered to the PRISMA guidelines, employing a search strategy in the LIVIVO, PubMed, Scopus, Embase, Web of Science, and Google Scholar databases. The methodological quality of the studies was assessed by the Joanna Briggs Institute. Results: A total of 33 studies involving 4294 individuals with HNSCC were included in this review. The most important alteration was the high mutational frequency in the KMT2C and KMT2D genes, with reported cooccurrence. The expression of the KMT2D gene exhibited considerable heterogeneity across the studies, while limited data was available for the remaining genes. Conclusions: KMT2C and KMT2D genes seem to have tumor suppressor activities, with involvement of cell cycle inhibitors, regulating different pathways that can lead to tumor progression, disease aggressiveness, and DNA damage accumulation.