PMID- 31048100 OWN - NLM STAT- MEDLINE DCOM- 20191029 LR - 20191029 IS - 1872-9142 (Electronic) IS - 0161-5890 (Linking) VI - 111 DP - 2019 Jul TI - Involvement of multiple transcription factors in regulation of IL-beta-induced MCP-1 expression in alveolar type II epithelial cells. PG - 95-105 LID - S0161-5890(19)30079-3 [pii] LID - 10.1016/j.molimm.2019.04.013 [doi] AB - During acute lung injury, a large number of monocytes are recruited into the pulmonary tissue, which is mainly mediated by local production of monocyte chemotactic protein 1 (MCP-1). As an essential component of the lung tissues, alveolar type II epithelial cells are one of the major sources of MCP-1. Therefore, uncovering the mechanism whereby MCP-1 production is regulated in the alveolar type II cells will provide a pivotal theoretical basis for clinical intervention in acute lung injury. In the current study, we find that there is a kappaB binding site in the MCP-1 promoter region, and mutation of the site leads to reduced production of MCP-1 in alveolar type II epithelial cells. In contrast, overexpression of NF-kappaB p65 significantly increases MCP-1 expression. Furthermore, we elucidate that IKKalpha/beta-NF-kappaB p65 signaling pathway and phosphorylation of serine 534 in NF-kappaB p65 are required for the maximal expression of MCP-1. Also, Activator protein 1 (AP-1) site in the promoter region and JNK1/2-c-Jun signaling are required for MCP-1 generation in alveolar type II epithelial cells. Moreover, a CCAAT/enhancer-binding protein (C/EBP) element is identified in the MCP-1 promoter region through the point mutation technique, and further experiments demonstrate that both C/EBPbeta and C/EBPdelta are involved in basic and IL-1beta-mediated MCP-1 expression. Of note, specificity protein 1-Sp1 expression is not changed in alveolar type II epithelial cells incubated with IL-1beta, but it still control MCP-1 production by binding to the consensus sequence in the promoter region. More importantly, we find that the results derived from the cell line-MLE-12 cells and primary cells are consistent. Taken together, our data provide insights into the molecular mechanism how MCP-1 expression in inflammatory alveolar type II epithelial cells is regulated at transcription level. CI - Copyright (c) 2019 Elsevier Ltd. All rights reserved. FAU - Yan, Chunguang AU - Yan C AD - Department of Pathogenic Biology and Immunology, Medical School of Southeast University, Nanjing, 210009, China. Electronic address: ycgagcy@163.com. FAU - Li, Bingyu AU - Li B AD - Department of Pathogenic Biology and Immunology, Medical School of Southeast University, Nanjing, 210009, China. Electronic address: 1051678133@qq.com. FAU - Liu, Xiufang AU - Liu X AD - Department of Pathogenic Biology and Immunology, Medical School of Southeast University, Nanjing, 210009, China. FAU - Deng, Chunming AU - Deng C AD - Department of Pathogenic Biology and Immunology, Medical School of Southeast University, Nanjing, 210009, China. FAU - Cai, Rentian AU - Cai R AD - Department of Infectious Diseases, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China. FAU - Shen, Yanfei AU - Shen Y AD - Department of Bioengineering, Medical School of Southeast University, Nanjing, 210009, China. FAU - Tang, Huifang AU - Tang H AD - Zhejiang Respiratory Drugs Research Laboratory of the State Food and Drug Administration of China, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China. Electronic address: tanghuifang@zju.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190429 PL - England TA - Mol Immunol JT - Molecular immunology JID - 7905289 RN - 0 (Ccl2 protein, mouse) RN - 0 (Chemokine CCL2) RN - 0 (Interleukin-1beta) RN - 0 (NF-kappa B) RN - 0 (Transcription Factor RelA) RN - 0 (Transcription Factors) RN - EC 2.7.11.10 (I-kappa B Kinase) SB - IM MH - Animals MH - Cell Line MH - Chemokine CCL2/*genetics MH - Epithelial Cells/*metabolism MH - I-kappa B Kinase/genetics MH - Inflammation/genetics MH - Interleukin-1beta/*genetics MH - Mice MH - NF-kappa B/genetics MH - Promoter Regions, Genetic/genetics MH - Signal Transduction/genetics MH - Transcription Factor RelA/genetics MH - Transcription Factors/*genetics MH - Transcription, Genetic/genetics OTO - NOTNLM OT - Acute lung inflammation OT - Alveolar type II epithelial cell OT - MCP-1 OT - Transcription factors EDAT- 2019/05/03 06:00 MHDA- 2019/10/30 06:00 CRDT- 2019/05/04 06:00 PHST- 2019/01/30 00:00 [received] PHST- 2019/03/22 00:00 [revised] PHST- 2019/04/23 00:00 [accepted] PHST- 2019/05/03 06:00 [pubmed] PHST- 2019/10/30 06:00 [medline] PHST- 2019/05/04 06:00 [entrez] AID - S0161-5890(19)30079-3 [pii] AID - 10.1016/j.molimm.2019.04.013 [doi] PST - ppublish SO - Mol Immunol. 2019 Jul;111:95-105. doi: 10.1016/j.molimm.2019.04.013. Epub 2019 Apr 29.