Prognostic value of histone H3 serine 10 phosphorylation and histone H4 lysine 12 acetylation in oral squamous cell carcinoma

Histopathology
Esther Campos-FernándezPaulo R de Faria

Abstract

Studies on epigenetics in oral squamous cell carcinoma (OSCC) are rare. Histone modifications comprise epigenetic mechanisms that perform a key role in gene transcription and may regulate tumour development. Thus, the aim of this study was to determine whether two post-translational histone modifications, i.e. phosphorylation of serine 10 in histone H3 and acetylation of lysine 12 in histone H4, have prognostic value for OSCC patients. Paraffin-embedded tissue samples of 90 patients diagnosed with OSCC were obtained and subjected to immunohistochemical staining with antibodies against histone H3 with phosphorylation of serine 10 (H3S10ph) and histone H4 with acetylation of lysine 12 (H4K12ac). The associations of H3S10ph and H4K12ac expression levels with clinicopathological factors were determined. Five-year survival analysis and univariate and multivariate analyses were also performed. Both H3S10ph and H4K12ac were expressed in the nuclei of tumour cells. A low median of H3S10ph expression was significantly associated with cervical lymph node metastasis. Tumours with high H4K12ac expression were significantly associated with gender, alcohol consumption, and cervical lymph node metastasis. H4K12ac was also shown to have indepe...Continue Reading

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Citations

Sep 25, 2020·Pathology, Research and Practice·Juliana Moreira De Almeida Sant'AnaPaulo Rogério de Faria

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