Methylation of CpG sites in the upstream regulatory region, physical status and mRNA expression of HPV-6 in adult-onset laryngeal papilloma

Zeyi Deng; Taro Ikegami; Asanori Kiyuna; Chunlin Zhang; Tao Zhang; Sen Matayoshi; Takayuki Uehara; Hiroyuki Maeda; Mikio Suzuki; Akira Ganaha

doi:10.18632/oncotarget.19898

Oncotarget

Oncotarget (a primarily oncology-focused, peer-reviewed, open access journal) aims to maximize research impact through insightful peer-review; eliminate borders between specialties by linking different fields of oncology, cancer research and biomedical sciences; and foster application of basic and clinical science.

Its scope is unique. The term "oncotarget" encompasses all molecules, pathways, cellular functions, cell types, and even tissues that can be viewed as targets relevant to cancer as well as other diseases. The term was introduced in the inaugural Editorial, Introducing Oncotarget.

As of January 1, 2022, Oncotarget has shifted to a continuous publishing model. Papers will now be published continuously within yearly volumes in their final and complete form and then quickly released to Pubmed.

Subscribe to receive alerts once a paper has been published by Oncotarget.

Impact Journals, LLC is the publisher of Oncotarget: www.impactjournals.com.

Impact Journals is a member of the Wellcome Trust List of Compliant Publishers.

Impact Journals is a member of the Society for Scholarly Publishing.

On December 23, 2022, Oncotarget server experienced a DDoS attack. As a result, Oncotarget site was inaccessible for a few hours. Oncotarget team swiftly dealt with the situation and took it under control. This malicious action will be reported to the FBI.

Research Papers:

Methylation of CpG sites in the upstream regulatory region, physical status and mRNA expression of HPV-6 in adult-onset laryngeal papilloma

Zeyi Deng _, Taro Ikegami, Asanori Kiyuna, Chunlin Zhang, Tao Zhang, Sen Matayoshi, Takayuki Uehara, Hiroyuki Maeda, Mikio Suzuki and Akira Ganaha

PDF | HTML | How to cite

Oncotarget. 2017; 8:85368-85377. https://doi.org/10.18632/oncotarget.19898

Metrics: PDF 1836 views | HTML 2240 views | ?

Abstract

Zeyi Deng1,2, Taro Ikegami2, Asanori Kiyuna2, Chunlin Zhang1,2,3, Tao Zhang1, Sen Matayoshi2, Takayuki Uehara2, Hiroyuki Maeda2, Mikio Suzuki2 and Akira Ganaha2

1Department of Otorhinolaryngology, Head and Neck Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China

2Department of Otorhinolaryngology, Head and Neck Surgery, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan

3Department of Otorhinolaryngology, Head and Neck Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi, China

Correspondence to:

Zeyi Deng, email: [email protected]

Keywords: adult-onset laryngeal papilloma, human papillomavirus-6, methylation, physical status, mRNA expression

Received: November 05, 2016 Accepted: July 13, 2017 Published: August 03, 2017

ABSTRACT

The methylation status of HPV-6 upstream regulatory region (URR) in adult-onset laryngeal papillomatosis (AO-LP) remains unclear. The purpose of this study was to investigate the methylation status of URR and the physical status of HPV-6, as well as the dynamic variations of viral load and mRNA expression in AO-LP. We examined 18 specimens from 11 patients with AO-LP by real-time polymerase chain reaction (PCR), bisulfite-sequencing PCR, and amplification of papilloma oncogene transcripts. HPV-6 was identified in 9 of 11 patients (81.8%), and all the 15 specimens derived from 9 HPV-6-positive cases contained only episomal HPV-6 transcripts with intact E2. Three HPV-6-positive patients developed recurrent lesions, and HPV-6 copy numbers and mRNA expression decreased after surgical treatment. Among the 96 CpG sites (16/case), 67 (69.8%) were unmethylated, while 23 (30.2%) were heterogeneous (≥ 1 methylated CpG clone). High viral loads and episomal status of HPV-6 were frequently observed in AO-LP; thus, persistent E6/E7 mRNA expression of LR-HPV-6 may be associated with AO-LP recurrences. Hypomethylation and scattered patterns of methylated CpGs at the URR of HPV-6 were identified in AO-LP.

All site content, except where otherwise noted, is licensed under a Creative Commons Attribution 4.0 License.
PII: 19898

Publication Alerts

Research Papers:

Methylation of CpG sites in the upstream regulatory region, physical status and mRNA expression of HPV-6 in adult-onset laryngeal papilloma

Abstract