PMID- 29153954 OWN - NLM STAT- MEDLINE DCOM- 20180727 LR - 20180727 IS - 1878-1705 (Electronic) IS - 1567-5769 (Linking) VI - 54 DP - 2018 Jan TI - MiR-150-5p regulates EGR2 to promote the development of chronic rhinosinusitis via the DC-Th axis. PG - 188-197 LID - S1567-5769(17)30431-9 [pii] LID - 10.1016/j.intimp.2017.11.011 [doi] AB - BACKGROUND AND AIMS: Accumulating studies indicate that miR-150-5p might play a significant role in dendritic cells (DCs) of peripheral blood in chronic rhinosinusitis (CRS) patients. We sought to investigate the effects and mechanism of miR-150-5p, which regulates early growth response 2 (EGR2) to promote the development of CRS via the DC-Th axis. METHODS: The upregulated expression of miR-150-5p in DCs of CRS was assayed by real-time quantitative polymerase chain reaction (qRT-PCR), and IL-17 cytokines in the supernatants of DC-naive T cells co-cultures were analysed by enzyme-linked immunosorbent assay (ELISA). Flow cytometry was used to evaluate T cell proliferations. EGR2 was also identified as a direct target of miR-150-5p by establishing a miRNA-mRNA network, and this target was validated with a Dual-Luciferase(R) Reporter Assay System and Western blot. RESULTS: MiR-150-5p was up-regulated in DCs in peripheral blood from CRS patients, and this expression was down-regulated by EGR2 expression via the DC-Th axis. Up-regulated miR-150-5p Regulates DCs, and DCs Promote Naive T Cells Proliferation. MiR-150-5p Further Regulates EGR2 and Inhibits DCs, Which Makes the DC-Th Axis Abnormal in the Peripheral Blood of Patients with CRS. CONCLUSION: MiR-150-5p and its identified target, EGR2, are involved in the development of CRS. DCs can promote T cell proliferations of peripheral blood in CRS. CI - Copyright (c) 2017. Published by Elsevier B.V. FAU - Ma, Zuxia AU - Ma Z AD - Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University,Chongqing, China; Department of Otorhinolaryngology, Zunyi First People's Hospital, Zunyi, China. FAU - Shen, Yang AU - Shen Y AD - Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University,Chongqing, China. FAU - Zeng, Quan AU - Zeng Q AD - Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University,Chongqing, China. FAU - Liu, Jie AU - Liu J AD - Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University,Chongqing, China. FAU - Yang, Li AU - Yang L AD - Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University,Chongqing, China. FAU - Fu, Ran AU - Fu R AD - Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University,Chongqing, China. FAU - Hu, Guohua AU - Hu G AD - Department of Otorhinolaryngology, The First Affiliated Hospital of Chongqing Medical University,Chongqing, China. Electronic address: hghcq@sina.com. LA - eng PT - Journal Article DEP - 20171116 PL - Netherlands TA - Int Immunopharmacol JT - International immunopharmacology JID - 100965259 RN - 0 (MIRN150 microRNA, human) RN - 0 (MicroRNAs) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Cell Proliferation MH - Cells, Cultured MH - Chronic Disease MH - Coculture Techniques MH - Dendritic Cells/*immunology MH - Disease Progression MH - Humans MH - MicroRNAs/*genetics MH - Middle Aged MH - Rhinitis/*genetics MH - Sinusitis/*genetics MH - T-Lymphocytes, Helper-Inducer/*immunology MH - Young Adult OTO - NOTNLM OT - Chronic rhinosinusitis OT - Dendritic cells OT - EGR2 OT - Naive T cells OT - miR-150-5p EDAT- 2017/11/21 06:00 MHDA- 2018/07/28 06:00 CRDT- 2017/11/21 06:00 PHST- 2017/05/04 00:00 [received] PHST- 2017/10/28 00:00 [revised] PHST- 2017/11/08 00:00 [accepted] PHST- 2017/11/21 06:00 [pubmed] PHST- 2018/07/28 06:00 [medline] PHST- 2017/11/21 06:00 [entrez] AID - S1567-5769(17)30431-9 [pii] AID - 10.1016/j.intimp.2017.11.011 [doi] PST - ppublish SO - Int Immunopharmacol. 2018 Jan;54:188-197. doi: 10.1016/j.intimp.2017.11.011. Epub 2017 Nov 16.