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Journal of Oncology
Volume 2019, Article ID 6835176, 11 pages
https://doi.org/10.1155/2019/6835176
Research Article

Long Non-Coding RNA Expression Profile Associated with Malignant Progression of Oral Submucous Fibrosis

1Department of Oral & Maxillofacial - Head & Neck Oncology, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
2National Clinical Research Center for Oral Diseases, China
3Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, China
4Department of Oral and Maxillofacial Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
5Department of Oral and Maxillofacial Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China

Correspondence should be addressed to Shanghui Zhou; nc.ude.umshs@iuhgnahsuohz

Received 18 April 2019; Accepted 27 June 2019; Published 29 July 2019

Academic Editor: Ferdinand Frauscher

Copyright © 2019 Shanghui Zhou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Oral submucous fibrosis (OSF) as one of the premalignant disorders endures a series of histopathological stages to invasive oral squamous cell carcinoma (OSCC) eventually. However, the role of long non-coding RNA (lncRNA) expression in OSF malignant progression still remains poorly understood. Through RNA-sequencing normal mucous, OSF and OSCC tissues, we found 687 lncRNA transcripts significantly and differentially expressed during OSF progression, including 231 upregulated lncRNAs and 456 downregulated lncRNAs, indicating that lncRNAs are involved in the regulation of different stages of OSF development. Further functional enrichment analysis showed these differentially expressed lncRNAs participated in inflammation signaling, Wnt signaling, angiogenesis, CCKR signaling, integrin signaling, PDGF signaling, p53 signaling, and EGF receptor (EGFR) signaling pathways, which contribute to inflammatory and fibroelastic pathogenetic changes of OSF and further malignant progression. Five novel lncRNAs were differentially expressed during OSF progression with varied expression levels, indicating the importance of these lncRNAs in OSF malignant development. Moreover, some lncRNAs have been previously identified to be associated with OSCC pathogenesis, including HCG22, RP11-397A16.1, LINC00271, CTD-3179P9.1, and ZNF667-AS1. Thus, our study firstly comprehensively elucidated lncRNAs expression profile of malignant procession from OSF premalignant lesion to OSCC, which will enlighten our understanding of the importance of lncRNA involved in OSF malignant development.