Erschienen in:
01.07.2012 | Original Paper
Increased miRNA-146a and miRNA-155 expressions in oral lichen planus
verfasst von:
Telma Cristina Arão, André Luiz Sena Guimarães, Alfredo Maurício Batista de Paula, Carolina Cavaliéri Gomes, Ricardo Santiago Gomez
Erschienen in:
Archives of Dermatological Research
|
Ausgabe 5/2012
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Abstract
Oral lichen planus (OLP) is a chronic inflammatory disease T helper 1 lymphocytes (Th1)-mediated. Interferon-gamma (IFN-γ) plays a central role in local immune response in this disease. MicroRNAs (miRNAs) are endogenously expressed non-coding RNAs that have important biological and pathological functions due to their potential mechanism regulating gene expression. Recently, some studies have demonstrated that miRNA-146a and miRNA-155 participate in immune response regulation, and are important in several chronic inflammatory and autoimmune diseases. The purpose of the present study was to investigate the expression of the miRNA-146a and miRNA-155 in 31 OLP lesions compared to normal oral mucosa and blood samples. Quantitative real-time polymerase chain reaction was used to analyze miRNA expressions. Our results showed increased expression of miRNA-146a and miRNA-155 in OLP lesions. In conclusion, these data highlight the possibility of miRNA-146a and miRNA-155 involvement in the regulation of the immune response in OLP.