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Significance of immunohistochemical overexpression of cyclooxygenase-2 in overall and disease-free survival of oral squamous cell carcinoma patients
Published online by Cambridge University Press: 24 January 2019
Abstract
In Pakistan, oral cancer ranks as the most common malignancy in males and the second most common malignancy in females. Cyclooxygenase-2 has been explored as an agent of carcinogenesis in oral and other neoplasms. This study aimed to observe the expression of cyclooxygenase-2 in oral squamous cell carcinoma, and to correlate the expression with patients’ clinical features and overall and disease-free survival.
Immunohistochemistry for cyclooxygenase-2 was performed on a total of 100 oral squamous cell carcinoma formalin-fixed, paraffin-embedded blocks. Expression was correlated with patients’ clinicopathological variables and overall and disease-free survival.
Cyclooxygenase-2 was overexpressed in 55 per cent of oral squamous cell carcinoma patients. Overexpression was correlated with overall survival (p = 0.013) and disease-free survival (p = 0.001) on univariate analysis. However, on multivariate analysis, cyclooxygenase-2 was associated with only disease-free survival (p = 0.044) and not overall survival (p = 0.208).
Expression of cyclooxygenase-2 is associated with poorer overall survival and higher rates of recurrence in oral squamous cell carcinoma patients.
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- Copyright © JLO (1984) Limited, 2019
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Dr S M Adnan Ali takes responsibility for the integrity of the content of the paper
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