Molecular analysis of oral squamous cell carcinoma: a tissue microarray study

Area of Science:

• Oncology
• Molecular Pathology
• Biomarker Research

Background:

• Oral Squamous Cell Carcinoma (OSCC) exhibits variable patient prognosis despite similar initial presentation.
• Understanding molecular alterations is key to deciphering OSCC tumor behavior.
• Tissue microarray (TMA) enables high-throughput analysis of multiple molecular targets without compromising tissue morphology.

Purpose of the Study:

• To evaluate tumor behavior in OSCC by assessing the expression of p53, Bcl-2, and E-cadherin.
• To utilize TMA technology for simultaneous analysis of these key biomarkers.

Main Methods:

• A case series analysis involving 30 histologically confirmed OSCC cases.
• Tissue microarray blocks were constructed from Formalin-fixed Paraffin-embedded (FFPE) tissues.
• Immunohistochemical staining was performed for p53, Bcl-2, and E-cadherin.

Main Results:

• Bcl-2 was the most frequently expressed biomarker in the study cohort.
• A significant inverse relationship was observed between Bcl-2 expression and tumor differentiation (P = 0.005).
• Patients with positive expression for both Bcl-2 and E-cadherin showed a 63.6% disease-free rate post-treatment.

Conclusions:

• TMA technology offers a promising approach for simultaneous multi-biomarker analysis in OSCC.
• Molecular data derived from TMA can significantly enhance diagnostic accuracy and prognostication.
• This approach has the potential to personalize cancer treatment strategies for individual OSCC patients.