Abstract:

Wang Guangping, Ni Nana, Zhou Xiaowei, Yang Ying, Song Hao, Wen Sijian, Chen Hao, Xu Xiulian, Sun Jianfang Department of Pathology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China Corresponding authors: Xu Xiulian, Email: xxlqjl@sina.com.cn; Sun Jianfang, Email: fangmin5758@aliyun.com 【Abstract】 Objective To screen microRNAs （miRNAs） related to early mycosis fungoides （MF）. Methods A high-throughput miRNA PCR array was used to determine miRNA profiles in skin lesions of 6 patients with early MF （early MF group） and 6 patients with lichen planus （control group）, followed by screening of differentially expressed miRNAs between the two groups. Then, real-time fluorescence-based quantitative PCR （RT-qPCR） was performed to verify the differentially expressed miRNAs in lesional specimens from 13 patients with early MF and 13 patients with eczema or lichen planus, as well as in Myla cells and normal human T-lymphocytes. Results The high-throughput miRNA PCR array showed that the s of hsa-miR-378a-5p, hsa-miR-107 and hsa-miR-302c-3p were significantly higher in the early MF group than in the control group （all P < 0.05）. For skin lesions, the results from RT-qPCR were similar to those from the miRNA array assay. Compared with normal human peripheral blood T-lymphocytes, Myla cells showed significantly increased s of hsa-miR-378a-5p and hsa-miR-107, which was consistent with the results from the miRNA array assay. However, no significant difference was observed in the of hsa-miR-302c-3p between the two kinds of cells. Conclusion MiRNA profiles in early MF are different from those in inflammatory skin diseases.