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An Official Publication of the Indian Association of Oral and Maxillofacial Pathologists


 
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Year : 2020  |  Volume : 24  |  Issue : 1  |  Page : 184
Immunoexpression of p53 in histologically negative surgical margins adjacent to oral squamous cell carcinoma:A preliminary study


1 PhD Scholar, Faculty of Dental Sciences, Pacific Academy of Higher Education and Research University, Udaipur, Rajasthan, India
2 Department of Oral and Maxillofacial Surgery, Pacific Dental College and Hospital, Udaipur, Rajasthan, India
3 Department of Oral Pathology and Microbiology, PMNM Dental College and Hospital, Bagalkot, Karnataka, India
4 Department of Oral Pathology, BV(DU) Dental College and Hospital, Sangli, Maharashtra, India

Correspondence Address:
Mamata S Kamat
QRTS No 7, B Block, Bharati Vidyapeeth Medical Campus, Miraj Road, Wanlesswadi, Sangli - 416 416, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jomfp.JOMFP_288_19

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The prognostic significance of genetic changes occurring in the histologically negative surgical margins (HNMs) has been focus of various studies recently. Since p53 is the most frequently observed genetic alteration found in oral squamous cell carcinoma (OSCC), we hypothesized that a similar variation might be evident in HNMs as well. Literature is scarce regarding comparison of expression of p53 in the tumor tissue and its adjacent HNMs; hence, the aim of the present study was to study p53 immunoexpression in OSCC and its HNMs. We included 12 paraffin-embedded tissue blocks of OSCC having tumor tissue and HNMs. The samples were subjected to immunohistochemical staining using primary mouse monoclonal antibody against p53, and the stained slides were evaluated for staining intensity and percentage of expression. Descriptive analysis and Chi-square test were applied. The expression of p53 was observed in 66% of HNMs and 91.6% of tumor tissue. The three cases which showed local recurrence demonstrated the expression of p53 in HNM. Hence, molecular analysis of p53 in surgical margins might potentially predict local recurrence of OSCC.


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Journal of Oral and Maxillofacial Pathology | Published by Wolters Kluwer - Medknow
Online since 15th Aug, 2007