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. 2016 Oct-Dec;5(4):179-181.
doi: 10.4103/2278-330X.195337.

Detection of human papilloma virus in potentially malignant and malignant lesions of the oral cavity and a study of associated risk factors

B R Bijina  1 , Junaid Ahmed  1 , Nandita Shenoy  1 , Ravikiran Ongole  1 , Suchitra Shenoy  2 , Srikala Baliga  2
Affiliations

Detection of human papilloma virus in potentially malignant and malignant lesions of the oral cavity and a study of associated risk factors

B R Bijina et al. South Asian J Cancer. 2016 Oct-Dec.

Abstract

Background: Squamous cell carcinoma of the head and neck is the 6th most frequently occurring cancer worldwide, with over 400,000 cases projected annually. Multiple factors such as tobacco, alcohol, irradiation, virus, and chronic irritants are involved in the development of oral squamous cell carcinomas (OSCCs). The most important risk factors are chronic exposure to tobacco and alcohol. Although the evidence that implicates virus is increasing, particularly (human papillomavirus [HPV]), in the carcinogenesis process, the role of virus is not well established.

Aim and objective: This study is designed to assess the presence of HPV in potentially malignant and malignant lesions of the oral cavity as well as to correlate the presence of HPV with addictive habits and histopathological grading of the disease.

Materials and methods: Biopsy samples of OSCC and potentially malignant lesions were obtained and 3, 5 μm thickness sections were cut using a microtome. The sections were collected using a sterile brush and transferred to an Eppendorf tube. DNA extraction and polymerase chain reaction for the detection of HPV were done.

Results and conclusion: The association between histopathological grading and presence of HPV was assessed using Chi-square test and the values thus obtained were found to be statistically significant. HPV was more predominantly seen in well-differentiated carcinomas and moderately differentiated carcinomas as compared to poorly differentiated carcinomas.

Keywords: Carcinoma; human papilloma virus; squamous cell carcinoma.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Gel picture of the ethidium bromide-staining in 2% agarose gel and showing presence of human papillomavirus infection in 17 out of 27 oral squamous cell carcinoma cases (MM - Molecular marker, PC - Positive control, Lane 1-28-oral squamous cell carcinoma samples [Lane 11-Verrucous proliferation inside odontogenic keratocyst])
Figure 2
Figure 2
Gel picture of the ethidium bromide-staining in 2% agarose gel and showing absence of human papillomavirus infection in all the 20 dysplasia cases (MM - Molecular marker, PC - Positive control, Lane 1–10 - Moderate dysplasia samples Lane 11–20 - Severe dysplasia samples)
See this image and copyright information in PMC

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