The expression of NMDA receptor 1 is associated with clinicopathological parameters and prognosis in the oral squamous cell carcinoma

Introduction: Stathmin, one of the most important intracellular phosphoprotein that plays the vital role in the regulation of cell cycle and cell proliferation. It acts by disassembly of Microtubules (MT) that helps in the formation of mitotic spindle. It is overexpressed in various human cancers. Aim: To investigate the expression status of stathmin and its relation with clinicopathologic significance in Oral Squamous Cell Carcinoma (OSCC) and its association with age, sex, tobacco chewing, histomorphological features and pathological staging. Materials and Methods: A descriptive and observational study in cross-sectional design was conducted in a tertiary care centre of Kolkata, West Bengal, India, from January 2020 to March 2020 in the Department of Pathology of RG Kar Medical College and Hospital in collaboration with Department of Oto-Rhino-Laryngology of the same institute. Stathmin expression was assessed by immunohistochemistry (IHC) in 28 OSCC cases. The association between stathmin expression and clinicopathological parameters like age, sex, tobacco chewing, tumour site, histomorphological type, Tumor Nodes Metastases (TNM) stage and Worst Pattern Of Invasion (WPOI) were evaluated on the basis of Chi-square test and Fisher’s-exact test (software Statistical Package for the Social Sciences (SPSS) V 25.0). Results: Stathmin was overexpressed in 18 cases out of 28 cases of OSCC. In this study a positive association was observed between stathmin expression and age group, history of tobacco chewing, advanced T stage, advanced pTNM staging and WPOI of OSCC. Conclusion: The study suggests that overexpression of stathmin could contribute to cancer progression. There is a higher likelihood that stathmin may be used as a potential biomarker as well as therapeutic target for OSCC.

Download Full-text

Immunoexpression of P16 and Ki 67 in oral squamous cell carcinoma: Association with clinicopathological parameters.

Erbil Dental Journal ◽

10.15218/edj.2020.19 ◽

2020 ◽

Vol 3 (2) ◽

pp. 135-144

Author(s):

Shadan Omer ◽

Payman Rashid

Keyword(s):

Squamous Cell Carcinoma ◽

Oral Squamous Cell Carcinoma ◽

Cell Carcinoma ◽

Squamous Cell ◽

Biological Behavior ◽

Clinicopathological Parameters ◽

Statistical Association ◽

Ki 67 ◽

Lower Lip ◽

Significant Statistical Association

Background and Objectives: Oral squamous cell carcinoma (OSCC) is considered as a major health problem worldwide and has been associated with high recurrence rate and poor progno-sis. Advances in understanding of OSCC have not improved the outcome in their management significantly. Many studies have focused on the roles of biomolecular markers in OSCC. The use of p16 and Ki67 as biomarkers of biological behavior of oral squamous cell carcinoma is contro-versial. This study aimed to determine immunoexpression of P16 and Ki67 in oral squamous cell carcinoma and to evaluate their association with various clinicopathological parameters. Materials and Methods: Fifty cases of squamous cell carcinoma from different locations in the oral cavity were included in this cross sectional study. The cases were collected from Rizgary Teaching Hospital and Private Laboratories in Erbil city during a period of eight months from October 2018 to May 2019. The expression of p16 and Ki 67 were evaluated immunohistochem-ically; the findings were correlated with the age of the patients, gender, site of the tumor and grade of the tumor. Result: A total of 50 patients with oral squamous cell carcinoma were enrolled in this study the age ranged from 33 to 89 years, with a mean age ± SD of (64.24 ±12.01) years and more than half (52.0%) of them were males. Lower lip was the most common site of the tumor followed by upper lip and tongue (42.0%, 26.0% and 18.0%, respectively). Histopathological findings of the tumor showed that (54.0%) of the patients had moderately differentiated squamous cell carci-noma. However, (84.0%) of the patients showed negative expression of P 16, while Ki 67 ex-pression was positive among (76.0%) of them. No significant statistical association were found between immunoexpression of p16 and age, sex of patient, site of the tumor and grade of the tumor (P=0.67, P=0,095, P=0.696, P=0.454 respectively). No significant statistical association were found between immunoexpression of Ki67 and age, sex of patient, site of the tumor and grade of the tumor (P=0.637, P=0,411, P=0.353, P=1.00 respectively). Conclusion: in relation to the results obtained in this study no significant association were found between P16 and Ki 67 immunoexpression in oral squamous cell carcinoma with clinicopatho-logical parameters. Further researches have to be designed to better understand the role of p16 and Ki 67 in OSCC. Keywords: oral squamous cell carcinoma, immunoexpression, P16, Ki67.

Download Full-text