scholarly journals ROLE OF KI-67 AS A DIAGNOSTIC TOOL IN ORAL SQUAMOUS CELL CARCINOMA-A REVIEW

2021 ◽  
Vol 10 (1 (SPECIAL ISSUE)) ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 1330-1336 ◽  
Author(s):  
Mona Dahal ◽  
Smriti Karki ◽  
Paricha Upadhyaya ◽  
Shyam Thapa Chettri ◽  
Mehul Rajesh Jaisani

Background: As most of the oral squamous cell carcinoma develop from precursor premalignant lesions, it would be helpful if the malignant transformation is detected early in premalignant state. The objective of the research was to study the role of immunohistochemical expression of p53 and Ki-67 in oral premalignant lesion and squamous cell carcinoma.Materials and Methods: The expression of immunomarkers p53 and Ki67 were studied on formalin fixed paraffin embedded tissue sections from human oral squamous mucosal lesion for duration of 1 year. Results: Of total 36 cases, 80% cases of keratosis without dysplasia showed basal pattern of p53 staining while 47.1% cases of squamous cell carcinoma showed p53 staining in all layers of epithelium. The median p53 Labelling Index of squamous cell carcinoma was more than those of keratosis with and without dysplasia though the result was statistically non-significant. 50.0% cases of keratosis without dysplasia and 83.3% cases of keratosis with dysplasia displayed Ki-67 immunostaining confined to basal and suprabasal layer whereas 94.1% cases of squamous cell carcinoma showed Ki-67 positivity in all layers of epithelium. Median Ki-67 Labelling Index increased from keratosis without dysplasia to keratosis with dysplasia to squamous cell carcinoma, difference being statistically significant. A positive and insignificant correlation was observed between p53 and Ki-67 Labelling Index.Conclusion: Increased expressions of Ki-67 and p53 in oral squamous cell carcinoma compared to premalignant lesion suggest that they may be useful indicator of malignant transformation in dysplastic lesion.


2020 ◽  
Vol 40 (12) ◽  
pp. 6987-6995
Author(s):  
NORBERT NECKEL ◽  
MARCO MICHAEL ◽  
DANIEL TROELTZSCH ◽  
JONAS WÜSTER ◽  
STEFFEN KOERDT ◽  
...  

2012 ◽  
Vol 6 (2) ◽  
pp. 21 ◽  
Author(s):  
Rashmi Metgud ◽  
Madhusudan Astekar ◽  
Meenal Verma ◽  
Ashish Sharma

The etiology of oral squamous cell carcinoma (OSCC) is complex and involves many factors. The most clearly defined risk factors are smoking and alcohol, which substantially increase the risk of oral SCC. However, despite this clear association, a substantial proportion of patients develop OSCC without exposure to them, emphasizing the role of other risk factors such as genetic susceptibility and oncogenic viruses. Some viruses are strongly associated with OSCC while the association of others is less frequent and may depend on co-factors for their carcinogenic effects. Therefore, the exact role of viruses must be evaluated with care in order to improve the diagnosis and treatment of OSCC.


2014 ◽  
Vol 122 (3) ◽  
pp. 198-201 ◽  
Author(s):  
Annalisa Palmieri ◽  
Francesco Carinci ◽  
Marcella Martinelli ◽  
Furio Pezzetti ◽  
Ambra Girardi ◽  
...  

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