scholarly journals Flow cytometric DNA analysis of oral squamous cell carcinoma in Iraqi patients

2002 ◽  
Vol 8 (2-3) ◽  
pp. 393-403
Author(s):  
B. T. Garib ◽  
S. Al Ani ◽  
N. Al Alwan ◽  
I. S. Tillawi
Keyword(s):  
Squamous Cell Carcinoma ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Dna Analysis ◽  
Nuclear Dna ◽  
Treatment Strategies ◽  
Dna Index ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded

We studied the DNA content, DNA index and cell cycle parameters that are reliable markers for assessing the proliferative activity and aggressiveness of malignancies. Cytometric DNA analysis was performed on formalin-fixed paraffin embedded sections from 36 Iraqi patients with oral squamous cell carcinoma. The results showed that 20 of 36 cases [55.5%] were diploid, while 15 cases [41.7%] were aneuploid. Significantly higher S-phase fractions and higher DNA indices characterized aneuploid tumours. Nuclear DNA analysis as part of the evaluation of oral squamous cell carcinoma will influence the selection of appropriate treatment strategies.

scholarly journals Expression of Extracellular Matrix—Laminin in Oral Squamous Cell Carcinoma: An Immunohistochemical Study

2012 ◽  
Vol 13 (2) ◽  
pp. 194-200
Author(s):  
Sonam C Kapse ◽  
Ajit V Koshy ◽  
Nirmala N Rao ◽  
Sushant S Kamat ◽  
Kamal Kiswani ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Squamous Cell Carcinoma ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Immunohistochemical Study ◽  
Tumor Development ◽  
Treatment Strategies ◽  
Prognostic Indicators ◽  
Chi Square

ABSTRACT Aim To evaluate the expression of laminin in various grades of oral squamous cell carcinoma (OSCC) in order to determine whether this protein can be used as a marker for early detection and elucidation of oral cancer. Materials and methods Immunohistochemical staining for laminin was done on 60 selected archival blocks of histopathologically diagnosed cases of primary OSCC and the laminin expression was compared between the different histopathological grades of primary OSCC. The statistical analysis was performed by using Chi-square (÷ square) test and Gaussiantest with a probability of p < 0.05 was considered as significant. Results It was observed that laminin expression decreased with tumor progression which may be correlated to the tumor aggressiveness. Conclusion There was a gradual decrease of laminin staining with decreasing cellular differentiation, with differentiated lesions showing a more conspicuous staining of basement membrane glycoprotein than less differentiated lesions. Clinical significance An understanding of how the extracellular matrix influences tumor development and invasion is fundamental in the development of new prognostic indicators and treatment strategies for oral squamous cell carcinoma. How to cite this article Koshy AV, Rao NN, Kamat SS, Kiswani K, Kapse SC, Shaikh NA. Expression of Extracellular Matrix— Laminin in Oral Squamous Cell Carcinoma: An Immunohistochemical Study. J Contemp Dent Pract 2012;13(2):194-200.

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