TY - JOUR A2 - Bult, Hidde AU - Chen, Jun AU - Feng, Jinqiu AU - Chen, Xiangdong AU - Xu, Hui AU - Zhou, Zengtong AU - Shen, Xuemin AU - Bao, Zhexuan AU - Liu, Wei AU - Shen, Zhengyu PY - 2013 DA - 2013/11/26 TI - Immunoexpression of Interleukin-22 and Interleukin-23 in Oral and Cutaneous Lichen Planus Lesions: A Preliminary Study SP - 801974 VL - 2013 AB - Interleukin- (IL-) 22 is the signature cytokine of T-helper (Th) 22 cells, and IL-23 is required for IL-22 production. The objective of this study was to examine the immunoexpression of IL-22 and IL-23 in archival paraffin-embedded biopsy specimens from oral LP (n=42) and cutaneous LP (n=38) against normal control tissues. The results showed that the percentage of cells expressing IL-22 and IL-23 in LP were significantly higher in LP compared to controls, respectively (both P<0.001). The correlation between IL-22 and IL-23 expression was significant (P<0.05). Moreover, the percentage of cells expressing IL-22 and IL-23 in oral LP were significantly higher than cutaneous LP (P<0.05). Collectively, our findings demonstrated that the increased expression of IL-22 and IL-23 in LP lesions could play roles in the pathogenesis of LP. Moreover, oral LP expressing IL-22 and IL-23 was higher than cutaneous LP, probably due to Th22 cells as an important component of oral mucosal host defense against oral microbiota and tissue antigens. This may be associated with the difference in clinical behaviour of the two variants of the disease. SN - 0962-9351 UR - https://doi.org/10.1155/2013/801974 DO - 10.1155/2013/801974 JF - Mediators of Inflammation PB - Hindawi Publishing Corporation KW - ER -