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. 2021 Dec 1;22(12):3927-3932.
doi: 10.31557/APJCP.2021.22.12.3927.

Prevalence of Merkel Cell Polyomavirus (MCPyV) in the Oral Cavity Biopsies in Northern Iran

Mina Hasani Estalkhi  1 , Maryam Seyed Majidi  1 , Farzin Sadeghi  2 , Mohammad Chehrazi  3 , Arghavan Zebardast  4 , Ali Hasanzadeh  5 , Yousef Yahyapour  6
Affiliations

Prevalence of Merkel Cell Polyomavirus (MCPyV) in the Oral Cavity Biopsies in Northern Iran

Mina Hasani Estalkhi et al. Asian Pac J Cancer Prev. .

Abstract

Objective: Infection with human tumor viruses is one of the hypothesized causes of cancer. The current investigation aimed to explore the presence and quantitative analysis of a new human tumor virus, Merkel cell polyomavirus (MCPyV) in tissue samples of 114 patients with oral cavity lesions including oral squamous cell carcinoma (OSCC), oral lichen planus (OLP), Dysplasia and oral irritation fibroma (OIF) in Northern Iran.

Methods: From 114 formalin fixed paraffin embedded samples; 35 with SCC, 29 with OLP, 14 with dysplasia and 36 with OIF were cut, deparaffinized and DNA was extracted. Quantitative detection of MCPyV large T antigen was performed by absolute quantitative Real-Time PCR.

Result: MCPyV DNA was detected in 30.6% (n: 11/36) of IF, 24.1% (n; 7/29) of OLP, 21.4% (n:3/14) of dysplasia and 20% (n;7/35) of OSCC samples. The mean MCPyV DNA copy number was 2.32×10-2 ± 3.97 ×10-2, 2.02×10-2 (SD=3.13×10-2), 2.69×10-4 (SD=2.51×10-4), and 2.56×10-4 (SD=6.73×10-4) per cell in OSCC, dysplasia and both of OLP and OIF samples, respectively (P=0.76).

Conclusion: This study provides the first data from Iran regarding the presence of MCPyV genome in oral cavity lesions and oral cancer. These results also emphasize that MCPyV has an active role in the occurrence of oral lesions and progression to cancer. Further studies should be carried out to clarify the role of MCPyV in oral cavity lesions.

Keywords: Merkel Cell Polyomavirus (MCPyV); Oral Irritation Fibroma (OIF); Oral Lichen Planus (OLP); Real-Time PCR; oral squamous cell carcinoma (OSCC).

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Figures

Figure 1
Figure 1
The Mean MCPyV DNA Load According to Histopathologic Diagnosis in Patients with Neoplastic and Non-Neoplastic Oral Lesions. The p-value was determined by ANOVA. [A. by site of lesion; B. by type of lesion (OSCC, OLP, Dysplasia and OIF); C. by type of samples (Benign, pre-malignant and malignant)]
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