Role Of Cd8+ Tumour-Infiltrating Lymphocytes In Predicting Regional Lymph Node Metastasis In Lip And Oral Cavity...

Area of Science:

• Oncology
• Immunology
• Pathology

Background:

• Lip and oral squamous cell carcinoma (SCC) presents a significant health burden, particularly in Pakistan.
• Emerging research highlights the immune system's role in cancer progression, focusing on tumor microenvironment components like tumor-infiltrating lymphocytes (TILs).
• Cytotoxic T-cell infiltration is recognized for its potential to impede tumor progression in various cancers.

Purpose of the Study:

• To investigate the prognostic significance of CD8+ TILs in lip and oral SCC.
• To determine if CD8+ TIL density correlates with specific clinicopathological parameters in oral cancer patients.

Main Methods:

• Analysis of 100 lip and oral SCC cases using paraffin-embedded tissue blocks.
• Application of CD8 immunohistochemistry to assess TIL density in tumor sections.
• Statistical analysis using SPSS v27.0, including Chi-squared tests, with a significance level of p<0.05.

Main Results:

• Increased CD8+ TIL density showed a significant association with pN stage (p=0.000).
• Higher CD8+ TIL density was also significantly correlated with early clinical stage (p=0.014).
• No significant associations were found between CD8+ TIL density and other evaluated clinicopathological parameters.

Conclusions:

• CD8+ TIL density serves as a dependable marker for predicting the presence or absence of cervical nodal metastasis in lip and oral SCC.
• Future research should explore the predictive role of CD8+ TIL density in determining overall survival rates for oral cancer.