EXPERIMENTAL IMMUNOLOGY
MicroRNA-20b promotes the accumulation of CD11b+Ly6G+Ly6Clow myeloid-derived suppressor cells in asthmatic mice
More details
Hide details
Submission date: 2016-01-05
Final revision date: 2016-02-19
Acceptance date: 2016-02-24
Publication date: 2017-05-08
Cent Eur J Immunol 2017;42(1):30-38
KEYWORDS
ABSTRACT
miR-20b is a member of the miR-106a-363 gene cluster, which has been shown to play an important role in a variety of diseases, including cancer, inflammation, and autoimmune diseases. Our previous study indicated that miR-20b has an inhibitory effect on airway inflammation in asthmatic mice, but the exact mechanism is unclear. In this study, we report that the ratio of CD11b+Ly6G+Ly6Clow cells, but not the amount of CD11b+Ly6C+Ly6G– cells, was increased in the lung tissue of asthmatic mice after intranasal instillation with miR-20b mimics, while Th2-type cytokines (interleukin (IL)-4 and IL-13) were significantly decreased in the bronchoalveolar lavage fluid. In addition, the transcription factor CREB regulated the expression of miR-20b. Our findings suggest that miR-20b can induce the accumulation of myeloid-derived suppressor cells in the lungs of asthmatic mice, which may be a mechanism by which miR-20b inhibits airway inflammation in asthmatic mice. Thus, miR-20b may be used as a target for the effective treatment of asthma in the future.
REFERENCES (31)
1.
Pelaia G, Vatrella A, Busceti MT, et al. (2015): Cellular mechanisms underlying eosinophilic and neutrophilic airway inflammation in asthma. Mediators Inflamm 2015: 879783.
2.
Fahy JV (2015): Type 2 inflammation in asthma – present in most, absent in many. Nat Rev Immunol 15: 57-65.
3.
Olin JT, Wechsler ME (2014): Asthma: pathogenesis and novel drugs for treatment. BMJ 349: g5517.
4.
Su Z, Yang Z, Xu Y, et al. (2015): MicroRNAs in apoptosis, autophagy and necroptosis. Oncotarget 11: 8474-8490.
5.
Perry MM, Adcock IM, Chung KF (2015): Role of microRNAs in allergic asthma: present and future. Curr Opin Allergy Clin Immunol 2: 156-162.
6.
Liu F, Qin HB, Xu B, et al. (2015): Profiling of miRNAs in pediatric asthma: upregulation of miRNA-221 and miRNA-485-3p. Mol Med Rep 5:1178-1182.
7.
Collison A, Herbert C, Siegle JS, et al. (2011): Altered expression of microRNA in the airway wall in chronic asthma: miR-126 as a potential therapeutic target. BMC Pulm Med 11: 29.
8.
Panganiban RP, Pinkerton MH, Maru SY, et al. (2012): Differential microRNA epression in asthma and the role of miR-1248 in regulation of IL-5. Am J Clin Exp Immunol 2: 154-165.
9.
Tsitsiou E, Williams AE, Moschos SA, et al. (2012): Transcriptome analysis shows activation of circulating CD8+ T cells in patients with severe asthma. J Allergy Clin Immunol 129: 95-103.
10.
Song C, Ma H, Yao C, et al. (2012): Alveolar macrophage-derived vascular endothelial growth factor contributes to allergic airway inflammation in a mouse asthma model. Scand J Immunol 75: 599-605.
11.
Ma H, Luo YL, Guo SJ, et al. (2015): Inhibitory effect of miR-20b on airway inflammation in asthmatic mice. Nan Fang Yi Ke Da Xue Xue Bao 35: 1463-1466.
12.
Song C, Yuan Y, Wang XM, et al. (2014): Passive transfer of tumour-derived MDSCs inhibits asthma-related airway inflammation. Scand J Immunol 79: 98-104.
13.
Nagaraj S, Youn JI, Gabrilovich DI (2013): Reciprocal relationship between myeloid-derived suppressor cells and T cells. J Immunol 191: 17-23.
14.
Lindau D, Gielen P, Kroesen M, et al. (2013): The immunosuppressive tumour network: myeloid-derived suppressor cells, regulatory T cells and natural killer T cells. Immunology 138: 105-115.
15.
Gabrilovich DI, Nagaraj S (2009): Myeloid-derived suppressor cells as regulators of the immune system. Nat Rev Immunol 9: 162-174.
16.
Jiang J, Guo W, Liang X (2014): Phenotypes, accumulation, and functions of myeloid-derived suppressor cells and associated treatment strategies in cancer patients. Hum Immunol 75: 1128-1137.
17.
Chen S, Zhang Y, Kuzel TM, et al. (2015): Regulating Tumor Myeloid-Derived Suppressor Cells by MicroRNAs. Cancer Cell Microenviron 2 pii: e637.
18.
Liu Y, Lai L, Chen Q, et al. (2012): MicroRNA-494 is required for the accumulation and functions of tumor-expanded myeloid-derived suppressorcells via targeting of PTEN. J Immunol 188: 5500-5510.
19.
Li L, Zhang J, Diao W, et al. (2014): MicroRNA-155 and MicroRNA-21 promote the expansion of functional myeloid-derived suppressor cells. J Immunol 192: 1034-1043.
20.
Mei S, Xin J, Liu Y, et al. (2015): MicroRNA-200c Promotes Suppressive Potential of Myeloid-Derived Suppressor Cells by Modulating PTEN andFOG2 Expression. PLoS One 10: e0135867.
21.
Markowitz J, Wesolowski R, Papenfuss T, et al. (2013): Myeloid-derived suppressor cells in breast cancer. Breast Cancer Res Treat 140: 13-21.
22.
Ostanin DV, Bhattacharya D (2013): Myeloid-derived suppressor cells in the inflammatory bowel diseases. Inflamm Bowel Dis 19: 2468-2477.
23.
Tang F, Wang F, An L, et al. (2015): Upregulation of Tim-3 on CD4(+) T cells is associated with Th1/Th2 imbalance in patients with allergic asthma. Int J Clin Exp Med 8: 3809-3816.
24.
Luo Y, Deng Y, Tao Z, et al. (2014): Regulatory effect of microRNA-135a on the Th1/Th2 imbalance in a murine model of allergic rhinitis. Exp Ther Med 8: 1105-1110.
25.
Lu TX, Hartner J, Lim EJ, et al. (2011): MicroRNA-21 limits in vivo immune response-mediated activation of the IL-12/IFN-gamma pathway, Th1polarization, and the severity of delayed-type hypersensitivity. J Immunol 187: 3362-3373.
26.
Möhnle P, Schütz SV, van der Heide V, et al. (2015): MicroRNA-146a controls Th1-cell differentiation of human CD4+ T lymphocytes by targeting PRKC. Eur J Immunol 45: 260-272.
27.
Mattes J, Collison A, Plank M, et al. (2009): Antagonism of microRNA-126 suppresses the effector function of TH2 cells and the development of allergic airways disease. Proc Natl Acad Sci U S A 106: 18704-18709.
28.
Kai W, Qian XU, Qun WU (2015): MicroRNAs and Asthma Regulation. Iran J Allergy Asthma Immunol 14: 120-125.
29.
Saito Y, Saito H (2012): Role of CTCF in the regulation of microRNA expression. Front Genet 3: 186.
30.
Chavali PL, Funa K, Chavali S, et al. (2011): Cis-regulation of microRNA expression by scaffold/matrix-attachment regions. Nucleic Acids Res 39: 6908-6918.
31.
Zhang X, Zhang B, Gao J, et al. (2013): Regulation of the microRNA 200b (miRNA-200b) by transcriptional regulators PEA3 and ELK-1 protein affectsexpression of Pin1 protein to control anoikis. J Biol Chem 288: 32742-32752.