c-MYC expression in T (III/IV) stage oral squamous cell carcinoma (OSCC) patients
Received 26 February 2019
Accepted for publication 10 May 2019
Published 5 June 2019 Volume 2019:11 Pages 5163—5169
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Cristina Weinberg
Peer reviewer comments 2
Editor who approved publication: Dr Antonella D'Anneo
Shu-Hui Lin,1,2,* Hsin-Kai Wang,3,4,* Kun-Tu Yeh,1,5 Hui-Chun Tai,1,6 Hui-Yi Wang,1 Lan-Ru Huang,2 Chun-Wen Chiu,7 Chia-Min Chung,8,9 Bharath Kumar Velmurugan10
1Department of Surgical Pathology, Changhua Christian Hospital, Changhua, Taiwan; 2Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan; 3Public Health Bureau, Tainan City Government, Tainan, Taiwan; 4Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan; 5School of Medicine, Chung Shan Medical University, Taichung, Taiwan; 6Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; 7Department of Emergency Medicine, Changhua Christian Hospital, Changhua, Taiwan; 8Graduate Institute of BioMedical Sciences, China Medical University, Taichung, Taiwan; 9Environment-Omics-Diseases Research Center, China Medical University Hospital, Taichung, Taiwan; 10Toxicology and Biomedicine Research Group, Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
*These authors contributed equally to this work
Purpose: c-MYC has been noted in many tumor types, but its functional significance and clinical utility in oral squamous cell carcinoma (OSCC) are not well known. Here we studied the expression of c-MYC in correlation to clinical outcome in patients with oral squamous cell carcinoma.
Methods: The current study, using immunohistochemical staining, first examined c-MYC expression in OSCC patients and further correlated its expression with clinicopathological parameters.
Results: c-MYC was expressed in the majority of OSCC patients (n=133). The c-MYC expression is associated with histological grade (P=0.0205) of patients with oral squamous cell carcinoma. Multivariate Cox regression analysis revealed that TN stage (P<0.001),American Joint Committee on Cancer(AJCC) stage (P<0.0001), and tumor differentiation (P=0.0025) were independent factors for overall survival in patients with OSCC except for c-MYC expression (P>0.05). Multiplicative-scale interaction between T stage (III/IV) and low c-MYC expression on mortality risk was identified (P=0.0233). Kaplan–Meier survival analysis demonstrated that oral cancer patients (T III/IV stage) with high c-MYC expression had better survival than those with low and medium c-MYC expression (P=0.0270).
Conclusion: Our data indicate that c-MYC is a potential biomarker that can be used as a therapeutic target for treating OSCC patients with T stage (III/IV).
Keywords: T stage, c-MYC, OSCC, biomarker, survival
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