scholarly journals Infection and coinfection by human papillomavirus, Epstein–Barr virus and Merkel cell polyomavirus in patients with squamous cell carcinoma of the larynx: a retrospective study

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5834 ◽  
Author(s):  
Jose Manuel Vazquez-Guillen ◽  
Gerardo C. Palacios-Saucedo ◽  
Lydia Guadalupe Rivera-Morales ◽  
Monica Valeria Alonzo-Morado ◽  
Saira Berenice Burciaga-Bernal ◽  
...  

Background Human papillomavirus (HPV) is recognized as an important risk factor for laryngeal carcinogenesis. Although HPV-16 and 18 have been strongly implicated, the presence of other high-risk HPV (HR-HPV) genotypes or the coinfection with Epstein-Barr virus (EBV) or Merkel cell polyomavirus (MCPV) may increase the risk, but their etiological association has not been definitively established. Methods We characterized the genotype-specific HPV and the frequency of EBV and MCPV infections through the detection of their DNA in 195 laryngeal specimens of squamous cell carcinoma (SCC) histologically confirmed. Results HPV DNA was detected in 93 (47.7%) specimens. HPV-11 was the most frequent with 68 cases (73.1%), and HPV-52 was the most frequently HR-HPV found with 51 cases, which corresponds to 54.8% of all HPV-positive specimens. EBV DNA was detected in 54 (27.7%) tumor tissue specimens of which 25 (46.3%) were in coinfection with HPV. MCPV DNA was detected only in 11 (5.6%) cases of which 5 (45.4%) were in coinfection with an HR-HPV. No association between the presence of DNA of the three examined viruses and the patient smoking habits, alcohol consumption, age, the keratinization status, differentiation grade, or localization of the tumor in the larynx were found. Discussion HPV-52 was the most prevalent HR-HPV, which may suggest that this and other genotypes in addition to HPV-16 and 18 could be considered for prophylaxis. However, further studies including non-cancer larynx cases and the evaluation of other molecular markers and viral co-infection mechanisms are needed to determine the role of the different HR-HPV genotypes, EBV, and MCPV in the etiology of SCC of the larynx.

2017 ◽  
Vol 18 (4) ◽  
pp. 261-264
Author(s):  
Shankargouda Patil ◽  
Barnali Majumdar

How to cite this article Majumdar B, Sarode SC, Sarode GS, Patil S. Etiologic Association between Epstein–Barr Virus and Oral Squamous Cell Carcinoma: A Brief Evidence-based Discussion. J Contemp Dent Pract 2017;18(4):261-264.


2021 ◽  
Vol 10 ◽  
Author(s):  
Frans J. Mulder ◽  
Faisal Klufah ◽  
Famke M. E. Janssen ◽  
Farzaneh Farshadpour ◽  
Stefan M. Willems ◽  
...  

ObjectiveDetermine the presence and prognostic value of human papillomavirus (HPV), Epstein-Barr virus (EBV), Merkel cell polyomavirus (MCPyV), and cell cycle proteins in head and neck squamous cell carcinoma (HNSCC) of non-smokers and non-drinkers (NSND).MethodsClinical characteristics and tumors of 119 NSND with HNSCC were retrospectively collected and analyzed on tissue microarrays. RNAscope in situ hybridization (ISH) was used to screen for the presence of HPV and MCPyV mRNA. Immunohistochemistry was performed for expression of p16 as surrogate marker for HPV, Large T-antigen for MCPyV, and cell cycle proteins p53 and pRb. Positive virus results were confirmed with polymerase chain reaction. For EBV, EBV encoded RNA ISH was performed. Differences in 5-year survival between virus positive and negative tumors were determined by log rank analysis.ResultsAll oropharyngeal tumors (OPSCC) (n = 10) were HPV-positive, in addition to one oral (OSCC) and one nasopharyngeal tumor (NPSCC). The other three NPSCC were EBV-positive. MCPyV was not detected. Patients with HPV or EBV positive tumors did not have a significantly better 5-year disease free or overall survival. Over 70% of virus negative OSCC showed mutant-type p53 expression.ConclusionIn this cohort, all OPSCC and NPSCC showed HPV or EBV presence. Besides one OSCC, all other oral (n = 94), hypopharyngeal (n = 1), and laryngeal (n = 9) tumors were HPV, EBV, and MCPyV negative. This argues against a central role of these viruses in the ethiopathogenesis of tumors outside the oro- and nasopharynx in NSND. So, for the majority of NSND with virus negative OSCC, more research is needed to understand the carcinogenic mechanisms in order to consider targeted therapeutic options.


2020 ◽  
Vol 9 (4) ◽  
pp. 3092-3100 ◽  
Author(s):  
Shivaranjhany Sivakumar ◽  
Archana A. Gupta ◽  
Nik Mohd Mazuan Nik Mohd Rosdy ◽  
Annapurny Venkiteswaran ◽  
A. Thirumal Raj ◽  
...  

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