Jornal de Citologia e Histologia

Expression of Toll-like Receptor 9 in Cervical Intraepithelial Neoplasia from Mexican Women

Abstract

Mario Adán Moreno-Eutimio, Gustavo Acosta-Altamirano and Víctor Manuel Vargas-Hernández

Introduction: Cervical cancer is a major health problem, is the second leading cause of cancer death in women worldwide and the first in developing countries. Toll-like receptors play an important role in the immune system through the recognition of pathogen-associated molecular patterns and damage associated with endogenous molecules, so that the role of Toll-like receptors is being explored in cancer.

Objective: To evaluate the expression of Toll-like receptor 9 (TLR9) in cervical intraepithelial neoplasia grade I, II and III tissues using immunohistochemical staining.

Material and Methods: Retrospective, observational and descriptive study, the expression of TLR9 incervical intraepithelial neoplasia grade I (n=124), II (n=68) and III (n=29) tissues were evaluated using immunohistochemical staining. All samples used in this study were from Mexican women.

Results: We found the expression levels of TLR9 was higher in CIN I (p<0.001) and CIN-II (p<0.001) than in CIN-III.

Conclusion: The low expression of TLR9 may play important roles in the development and progression of cervical intraepithelial neoplasia in Mexican women.