• 1. Department of Toracic Surgery, Te Henan Cancer Hospital Afliated to Zhengzhou University, Zhengzhou 540008, P. R. China;
  • 2. Department of Toracic Surgery, Te Huaihe Hospital Henan University, Kaifeng 475000, Henan, P. R. China;
QINJian-jun, Email: qinjianjun73@aliyun.com
Export PDF Favorites Scan Get Citation

Objective To investigate the expressions of microRNA-155 (miR-155) in different phenotypes of activated macrophages. Methods The THP-1 cells underwent polarized activation into M1, M2 or tumor-associated macrophages (TAMs), and the phenotypes were confirmed by flow cytometry. The miR-155 expression was determined by qRt-PCR in M1 macrophages, M2 macrophages and TAMs. Results The miR-155 expression significantly decreased in the M2 macrophages (1.83±0.337, P=0.000), TAMs (1.60±0.233, P=0.000) compared with the M1 (6.580±0.637). The phenotype of TAMs was similar to M2. There was no statistically significant difference between TAMs and M2 macrophages in the expression of miR-155 (P=0.546). Conclusion Different expressions of miR-155 in macrophages M1-type and M2-type may be associated with the differentiation or their cellular functions. The phenotypic characteristics TAMs may transform to macrophages to M2-type. And they may have the same functions.

Citation: WANGXiao-long, CHENXin-tao, QUGe, MAHai-bo, LIYin, QINJian-jun. Expression Difference of MicroRNA-155 among Macrophages M1, M2, and Tumor-associated Macrophages. Chinese Journal of Clinical Thoracic and Cardiovascular Surgery, 2015, 22(5): 476-480. doi: 10.7507/1007-4848.20150124 Copy

  • Previous Article

    Immunogenicity of Two Decellular Human Homograf Valves: A Comparative Study
  • Next Article

    Research Progress of MicroRNA in serum in diagnosis and Prognosis of lung cancer