scholarly journals Epigenetic Alterations Associated with the Overall Survival and Recurrence Free Survival among Oral Squamous Cell Carcinoma Patients

2020 ◽  
Vol 9 (4) ◽  
pp. 1035 ◽  
Author(s):  
Yasmen Ghantous ◽  
Aysar Nashef ◽  
Imad Abu-Elnaaj

Oral squamous cell carcinoma (OSCC) is a fatal disease caused by complex interactions between environmental, genomic, and epigenetic alterations. In the current study, we aimed to identify clusters of genes whose promoter methylation status correlated with various tested clinical features. Molecular datasets of genetic and methylation analysis based on whole-genome sequencing of 159 OSCC patients were obtained from the The Cancer Genome Atlas (TCGA) data portal. Genes were clustered based on their methylation status and were tested for their association with demographic, pathological, and clinical features of the patients. Overall, seven clusters of genes were revealed that showed a significant association with the overall survival/recurrence free survival of patients. The top ranked genes within cluster 4, which showed the worst prognosis, primarily acted as paraneoplastic genes, while the genes within cluster 6 primarily acted as anti-tumor genes. A significant difference was found regarding the mean age in the different clusters. No significant correlation was found between the tumor staging and the different clusters. In conclusion, our result provided a proof-of-principle for the existence of phenotypic diversity among the epigenetic clusters of OSCC and demonstrated the utility of the use epigenetics alterations in devolving new prognostic and therapeutics tools for OSCC patients.

2018 ◽  
Vol 132 (12) ◽  
pp. 1102-1109
Author(s):  
S M Adnan Ali ◽  
S Naeem ◽  
Y Mirza ◽  
N Zahid ◽  
M S Awan

AbstractObjectiveIn 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.MethodsImmunohistochemistry 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.ResultsCyclooxygenase-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).ConclusionExpression of cyclooxygenase-2 is associated with poorer overall survival and higher rates of recurrence in oral squamous cell carcinoma patients.


Tumor Biology ◽  
2014 ◽  
Vol 35 (8) ◽  
pp. 7831-7836 ◽  
Author(s):  
Lina Gu ◽  
Bairong Xia ◽  
Lili Zhong ◽  
Yuan Ma ◽  
Lei Liu ◽  
...  

2019 ◽  
Vol 47 (3) ◽  
pp. 523-529 ◽  
Author(s):  
Julius Moratin ◽  
Stefan Hartmann ◽  
Roman C. Brands ◽  
Dominik Horn ◽  
Andreas Fuchs ◽  
...  

2019 ◽  
Vol 99 (6) ◽  
pp. 371-378 ◽  
Author(s):  
Youfang Xun ◽  
Maohua Wang ◽  
Haiyong Sun ◽  
Shujun Shi ◽  
Bing Guan ◽  
...  

Objective: The purpose of this study was to demonstrate the prognostic role of inflammatory biomarkers in patients with laryngeal squamous cell carcinoma. Methods: For this study, we enrolled 151 patients who had undergone surgery for laryngeal squamous cell carcinoma. We assessed the preoperative neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR), monocyte to lymphocyte ratio (MLR), mean platelet volume, red cell distribution width, and alkaline phosphatase. The chi-square test, Kaplan-Meier survival analysis, and Cox proportional hazards model were conducted on overall survival, progression-free survival, locoregional recurrence-free survival, and distant metastasis-free survival of patients with laryngeal squamous cell carcinoma. Results: Both Kaplan-Meier analysis and univariate analysis showed significant prognostic differences with age, laryngectomy methods, Tumor Node Metastasis (TNM) staging, tumor location, NLR, PLR, MLR, and mean platelet volume. Multivariate analysis indicated that NLR (overall survival: hazard ratio [HR] = 3.02, 95% confidence interval [CI]: 1.28-7.10, P = .011), PLR (overall survival: HR = 0.33, 95% CI: 0.14-0.78, P = .011; progression-free survival: HR = 0.016,95% CI: 0.10-0.79, P = .016), and MLR (overall survival: HR = 0.29, 95% CI: 0.11-0.76, P = .012) were independent prognostic factors for 5-year survival. However, red cell distribution width and alkaline phosphatase had no significant difference in overall survival and progression-free survival. Conclusions: Preoperative high NLR, PLR, and MLR were associated with poor prognosis. They were found to be effective and reliable inflammatory biomarkers for patients with laryngeal squamous cell carcinoma.


2019 ◽  
Vol 33 (6) ◽  
pp. 1015-1032 ◽  
Author(s):  
Maria J. De Herdt ◽  
Senada Koljenović ◽  
Berdine van der Steen ◽  
Stefan M. Willems ◽  
Rob Noorlag ◽  
...  

2019 ◽  
Vol 77 (9) ◽  
pp. 1906-1914 ◽  
Author(s):  
Úrsula M. Jariod-Ferrer ◽  
Jose M. Arbones-Mainar ◽  
Marina A. Gavin-Clavero ◽  
M. Victoria Simón-Sanz ◽  
Ignacio Moral-Saez ◽  
...  

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