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Year : 2020  |  Volume : 8  |  Issue : 3  |  Page : 81-88

Correlation of p53 expression with histopathological and immunohistochemical features of human papillomavirus in oral leukoplakia

1 Department of Oral Pathology, SDM College of Dental Sciences and Hospital, Dharwad, Karnataka, India
2 Department of Oral and Maxillofacial Pathology and Microbiology, D.Y Patil Deemed to be University School of Dentistry Nerul, Navi Mumbai, Sector 7, Nerul, Navi Mumbai, Maharashtra, India
3 Department of Oral Pathology and Microbiology, Narsinhbhai Patel Dental College and Hospital, Visnagar, Gujarat, India

Correspondence Address:
Dr. Sandhya Tamgadge
Department of Oral and Maxillofacial Pathology and Microbiology, D.Y Patil Deemed to be University School of Dentistry Nerul, Navi Mumbai, Sector 7, Maharashtra, Pin - 400 706
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JMAU.JMAU_44_19

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Background: Oral cancer is strongly associated with the habit of tobacco chewing, alcohol, and betel quid consumption in India. However, sometimes, majority of the population develop oral cancer without exposure to these risk factors and are sometimes cautious about their fitness, suggesting that additional causes such as genetic predisposition, diet, and viral agents may be associated which need to explored. Aims and Objectives: The aim of this study was to establish a possible correlation between clinical types of leukoplakia with their histopathological features of high-risk human papillomavirus (HPV) infection and the presence or absence of HPV and expression of p53through immunohistochemistry (IHC). Materials and Methods: Sample comprised of 40 cases of leukoplakia and 10 cases as control group. Three sections were prepared from each biopsy and subjected to IHC and hematoxylin and eosin (H and E) stain, respectively. IHC-stained slides were used to evaluate the expression of p53 and HPV and then correlated with the features of HPV infection using H and E staining. Chi-square test with a statistical analysis software package (SPSS software Version 20.0) was used. Observation and Results: The P value for p53 against HPV (IHC) was 0.012, which indicates a significant difference between positivity proportion of P53 and HPV (IHC), whereas the P value for koilocyte and HPV (IHC) is 0.311, which is nonsignificant and indicates no significance of difference between proportion of positivity between koilocyte and HPV (IHC). Conclusion: The expression of p53 was proportionally significant to the expression of positivity of HPV, but there was no significant association between koilocyte and p53 expression.

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