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Adduri, R.S.R. and Kotapalli, V. and Gupta, N.A. and Gowrishankar, S. and Srinivasulu, M. and Ali, M. and Rao, S. and Uppin, S.G. and Nayak, U.K. and Dhagam, S. and Mohana Vamsy, C. and Bashyam, M.D. (2014) P53 nuclear stabilization is associated with FHIT loss and younger age of onset in squamous cell carcinoma of oral tongue. BMC Clinical Pathology, 14 (1). p. 37. ISSN 1472-6890

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Background: Squamous cell carcinoma of tongue (SCCT) is expected to harbor unique clinico-pathological and molecular genetic features since a significant proportion of patients are young and exhibit no association with tobacco or alcohol. Methods: We determined P53, epidermal growth factor receptor, microsatellite instability, human papilloma virus infection and loss of heterozygosity status at several tumor suppressor loci in one hundred and twenty one oral SCCT (SSCOT) samples and analyzed their association with clinico-pathological features and patient survival. Results: Our results revealed a significantly higher incidence of p53 nuclear stabilization in early (as against late) onset SCCOT. FHIT loss was significantly associated with p53 nuclear stabilization and the association was stronger in patients with no history of tobacco use. Samples harboring mutation in p53 DNA binding domain or exhibiting p53 nuclear stabilization, were significantly associated with poor survival. Conclusion: Our study has therefore identified distinct features in SCCOT tumorigenesis with respect to age and tobacco exposure and revealed possible prognostic utility of p53.

Item Type: Article
Subjects: Cell Biology
Molecular Biology
Depositing User: Dr P Divakar
Date Deposited: 17 May 2015 19:58
Last Modified: 10 Dec 2015 06:44
URI: http://cdfd.sciencecentral.in/id/eprint/48

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