4.5 Article

The Potential Association between E2F2, MDM2 and p16 Protein Concentration and Selected Sociodemographic and Clinicopathological Characteristics of Patients with Oral Squamous Cell Carcinoma

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CURRENT ISSUES IN MOLECULAR BIOLOGY
卷 45, 期 4, 页码 3268-3278

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MDPI
DOI: 10.3390/cimb45040213

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MDM2; p16; protein concentration; ELISA; oral squamous cell carcinoma; tumour; margin

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This study evaluated the concentrations of E2F2, MDM2, and p16 in oral squamous cell carcinoma tumour and margin samples and their association with sociodemographic and clinicopathological characteristics of patients. The results showed that E2F2 concentrations were lower in N0 patients compared to N1 patients in tumour samples, and HPV-negative patients had higher E2F2 protein concentrations. In addition, p16 levels were lower in alcohol drinkers in margin samples, and similar observations were found in concurrent drinkers and smokers.
Background: E2F transcription factor 2 (E2F2), murine double minute 2 (MDM2) and p16 are some of the key proteins associated with the control of the cell cycle. The aim of this study was to evaluate E2F2, MDM2 and p16 concentrations in the tumour and margin samples of oral squamous cell carcinoma and to assess their association with some selected sociodemographic and clinicopathological characteristics of the patients. Methods: The study group consisted of 73 patients. Protein concentrations were measured by enzyme-linked immunosorbent assay (ELISA). Results: There were no statistically significant differences in the levels of E2F2, MDM2 or p16 in the tumour samples as compared to the margin specimens. We found that patients with N0 showed significantly lower E2F2 concentrations than patients with N1 in the tumour samples and the median protein concentration of E2F2 was higher in HPV-negative patients in the tumour samples. Moreover, the level of p16 in the margin samples was lower in alcohol drinkers as compared to non-drinkers. Similar observations were found in concurrent drinkers and smokers compared to non-drinkers and non-smokers. Conclusions: E2F2 could potentially promote tumour progression and metastasis. Moreover, our results showed a differential level of the analysed proteins in response to alcohol consumption and the HPV status.

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