The association between lncRNA H19 and EZH2 expression in patients with EBV-positive laryngeal carcinoma.

Abstract

OBJECTIVE:

Laryngeal cancer is the second most common malignancy in the head and neck, with Epstein-Barr virus infection as a risk factor. Our aim is to evaluate correlations between the expression of lncRNA H19 and EBV infection in laryngeal cancer and H19 involvement in neoplastic progression through EZH2 association.

MATERIALS AND METHODS:

30 paired laryngeal tissue specimens (neoplastic and non-neoplastic) were included in the study. Nucleic acid isolation and cDNA synthesis was performed according to the manufacturer's protocol. EBV DNA and expression of lytic (BZLF1) and latent (LMP1) forms of infection were assessed in PCR assays; expression levels of H19 and EZH2 were quantified in qRT-PCR. Data was analysed using GraphPad Prism 5.0.

RESULTS:

Higher H19 relative expression in neoplastic vs paired non-neoplastic samples was found (p < 0.0001) with a significant increase in EBV DNA positive neoplasms (p = 0.0434). An inverse correlation between H19 and EZH2 expression levels was noticed in EBV positive cases. Additionally, increased levels of H19 in LMP1 positive samples compared with those positive for BZLF1 was found (p = 0.0593).

CONCLUSIONS:

lncRNA H19 and EZH2 significantly contribute to the development of laryngeal carcinoma, being correlated with EBV infection markers.

• Authors: Irina E Hotoboc, Alina Fudulu, Raluca Grigore, Serban Bertesteanu, Irina Huica, Iulia V Iancu, Anca Botezatu, Coralia Bleotu, Gabriela Anton
• Journal: Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale (Acta Otorhinolaryngol Ital) Vol. 41 Issue 6 Pg. 537-543 (Dec 2021) ISSN: 1827-675X [Electronic] Italy
• PMID: 34825669 (Publication Type: Journal Article)
• Copyright: Copyright © 2021 Società Italiana di Otorinolaringoiatria e Chirurgia Cervico-Facciale, Rome, Italy.

Chemical References

• H19 long non-coding RNA
• RNA, Long Noncoding
• EZH2 protein, human
• Enhancer of Zeste Homolog 2 Protein

Topics

• Carcinoma (genetics)
• Enhancer of Zeste Homolog 2 Protein (genetics)
• Epstein-Barr Virus Infections (complications, genetics)
• Herpesvirus 4, Human (genetics)
• Humans
• Laryngeal Neoplasms (genetics)
• RNA, Long Noncoding (genetics)