Deficiency in infiltration of CD8/CD3 positive lymphocytes and macrophages plays a role in lip carcinogenesis: an immunohistochemical study

ABSTRACT

Abstract Objective To evaluate the immunoexpression profile for CD8, CD3, CD20 and CD68 in the process and carcinogenesis of Carcinoma of the vermilion lip. Methods Average cell count with positive expression for CD3, CD8, CD20 and CD68. The CD8/CD3 ratio calculated in the region was based on the percentage of positive cells in a total of malignant cells. Kruska-Wallis/Dunn, Mann-Whitney and Spearman correlation tests (SPSS, p< 0.05) were used. Results In the Aquitic Cheilitis samples, there was an increase in intraepithelial CD8+ and CD68+. In LSCCs, there was an increase in peritumoral and intratumoral CD3+, CD8+, CD20+ and CD68+ cells. In peritumoral LSCC, CD3+ and CD8+ showed a direct correlation (p= 0.004), and CD68+ and CD8+ (p= 0.017). In the intraepithelial region, CD8+ correlated with CD20+ (p= 0.014) and CD68+ (p= 0.013). In the CAs, CD3 (p< 0.001) and CD8 (p= 0.025) correlated intraepithelial and subepithelial. In LSCC CD3+ (p= 0.002), CD8+ (p= 0.001) and CD68+ (p= 0.030) had intra and peritumoral correlation. Conclusion CD68+ is the first interacting cell with the greatest capacity to migrate to the tumor and interact with CD3, CD8 and CD20. Apparently, CD20 affects perineural invasion. Level of evidence Level 2.