Abstract
e15584 Background: In order to analyze the expression of TLR 7 and TLR 9 in cervix biopsies, we evaluated the expression of these TLRs in cervical carcinoma in situ tissue and peritumoral inflammatory tissue biopsies by immunohistochemistry. Methods: We reviewed 276 uterine cervix biopsies of Clinical Specialties Women's Health Directorate of the Ministry of National Defense (between 2009-2010); the biopsies have the following histopathological diagnosis: 124 CIN I, 68 CIN II, 34 CIN III, 21 invasive cancer and 29 cancer in situ. Results: It was observed that peritumoral inflammatory tissue receptor was expressed positively in 89.6% in cervical cancer tissue in situ, the receptor was expressed positively in 68.9% and the negative expression was 31.1%, proving that in the peritumoral inflammatory tissue compared with in situ cervical cancer was increased expression of TLR 7. In the case of the expression of TLR 9, peritumoral inflammatory tissue, expressed positively in 24 samples and 5 samples were negative expression in the tissue in situ cervical cancer samples identified 20 positive and 9 negative samples. By analyzing the intensity of the expression of TLR 7 in cervical cancer tissue in situ, we found 16 samples with focal positive (+), 3 samples with diffuse positive (+ +) and 1 sample with positive (+ + + ), while in peritumoral inflammatory tissue found 13 samples with focal positive (+), 10 samples with diffuse positive (+ +) and 3 samples with positive results (+++). By analyzing the intensity of the expression of TLR 9 in cervical cancer tissue in situ, we found 14 samples with focal positive (+), 5 samples with diffuse positive (+ +) and 1 sample with positive (+), in contrast to the peritumoral inflammatory tissue was found 7 samples with focal positive (+), 13 samples tested positive diffuse (+ +) and 4 samples with positive results (+++). Conclusions: These results show that no significant difference between the expression of TLR 7 () and TLR 9 () in the peritumoral inflammatory tissue and tissue in situ cervical cancer found a decrease in the expression of TLR 7 and TLR 9 in tissue in situ cervical cancer compared with the expression in the peritumoral tissue inflammation.
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