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Gu W, Wen D, Lu H, Zhang A, Wang H, Du J, Zeng L, Jiang J. MiR-608 Exerts Anti-inflammatory Effects by Targeting ELANE in Monocytes. J Clin Immunol 2019; 40:147-157. [PMID: 31749032 DOI: 10.1007/s10875-019-00702-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 10/01/2019] [Indexed: 12/17/2022]
Abstract
miR-608 has been indicated to play an important role in the pathogenesis of various inflammation-related diseases, including sepsis and several types of cancers. However, there is little information about the underlying mechanism, especially in inflammatory cells. In this study, an hsa-miR-608-inhibition cell model was constructed in U937 cells using a lentivirus, and gene expression profiles were determined by a cDNA microarray. Altogether, 682 genes showed a difference greater than 1.2-fold, including 184 genes downregulated and 498 genes upregulated. Among these genes, one potential miR-608-target gene, ELANE, was further investigated. A positive relationship between the expression of miR-608 and that of ELANE was found both in vivo and in vitro. In addition, decreased expression of miR-608 resulted in overexpression of ELANE at both the mRNA and protein levels. Cotransfection of HEK293T cells with a miR-608 mimic inhibited reporter activity, and mutation of the miRNA seed sequences abolished the repression of reporter activity. These results suggest that miR-608 is an important posttranscriptional regulator of ELANE expression in human monocytes and may play an important role in the process of inflammation. miR-608 and neutrophil elastase may be novel targets for the diagnosis or treatment of sepsis.
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Affiliation(s)
- Wei Gu
- School of Medicine, Changing University, Shapingba, Chongqing, 400045, China.
| | - Dalin Wen
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, School of Medicine, Chongqing University, Shapingba, Chongqing, 400045, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Army Medical University, Daping, Chongqing, 400042, China
| | - Hongxiang Lu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Army Medical University, Daping, Chongqing, 400042, China
| | - Anqiang Zhang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Army Medical University, Daping, Chongqing, 400042, China
| | - Haiyan Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Army Medical University, Daping, Chongqing, 400042, China
| | - Juan Du
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Army Medical University, Daping, Chongqing, 400042, China
| | - Ling Zeng
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Army Medical University, Daping, Chongqing, 400042, China
| | - Jianxin Jiang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Surgery Research, Daping Hospital, Army Medical University, Daping, Chongqing, 400042, China.
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Oscullo Yepez G, Sierra-Párraga JM, Posadas Blazquez T, Martínez-García MÁ. Towards precision medicine in bronchiectasis: what is the role of neutrophilic elastase determination? Eur Respir J 2019; 53:53/6/1900765. [PMID: 31196970 DOI: 10.1183/13993003.00765-2019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 04/24/2019] [Indexed: 01/13/2023]
Affiliation(s)
- Grace Oscullo Yepez
- Pneumology Dept, Hospital Universitario y Politécnico La Fe, Valencia, Spain
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Bronze-da-Rocha E, Santos-Silva A. Neutrophil Elastase Inhibitors and Chronic Kidney Disease. Int J Biol Sci 2018; 14:1343-1360. [PMID: 30123081 PMCID: PMC6097478 DOI: 10.7150/ijbs.26111] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 05/18/2018] [Indexed: 12/11/2022] Open
Abstract
End-stage renal disease (ESRD), the last stage of chronic kidney disease (CKD), is characterized by chronic inflammation and oxidative stress. Neutrophils are the front line cells that mediate an inflammatory response against microorganisms as they can migrate, produce reactive oxygen species (ROS), secrete neutrophil serine proteases (NSPs), and release neutrophil extracellular traps (NETs). Serine proteases inhibitors regulate the activity of serine proteases and reduce neutrophil accumulation at inflammatory sites. This review intends to relate the role of neutrophil elastase in CKD and the effects of neutrophil elastase inhibitors in predicting or preventing inflammation.
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Affiliation(s)
- Elsa Bronze-da-Rocha
- UCIBIO/REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
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Nikolic A. Pathophysiology and Genetics of Bronchiectasis Unrelated to Cystic Fibrosis. Lung 2018; 196:383-392. [PMID: 29754320 DOI: 10.1007/s00408-018-0121-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 05/04/2018] [Indexed: 10/16/2022]
Abstract
Bronchiectasis is characterized by deregulated inflammatory response and recurrent bacterial infection resulting in progressive lung damage and an irreversible dilatation of bronchi and bronchioles. Generally accepted model of the development of bronchiectasis is the "vicious cycle hypothesis" that proposes compromising of the mucociliary clearance by an initial event, which leads to the infection of the respiratory tract followed by further impairment of mucociliary function, bacterial proliferation, and more inflammation. Bronchiectasis is a very common symptom in patients with cystic fibrosis (CF), while bronchiectasis unrelated to CF is heterogeneous pathology of unknown cause with a large number of potential contributory factors and poorly understood pathogenesis. It is presumed that bronchiectasis unrelated to CF is a multifactorial condition predisposed by genetic factors. Different molecules have been implicated in the onset and development of idiopathic bronchiectasis, as well as modulation of the disease severity and response to therapy. Most of these molecules are involved in the processes that contribute to the homeostasis of the lung tissue, especially mucociliary clearance, protease-antiprotease balance, and immunomodulation. Evaluation of the studies performed towards investigation of the role these molecules play in bronchiectasis identifies genetic variants that may be of potential importance for clinical management of the disease, and also of interest for future research efforts. This review focuses on the molecules with major roles in lung homeostasis and their involvement in bronchiectasis unrelated to CF.
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Affiliation(s)
- Aleksandra Nikolic
- Laboratory for Molecular Biology, Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444A, PO Box 23, 11010, Belgrade, Serbia.
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Fernandes R, Freitas B, Miranda V, Costa E, Santos-Silva A, Bronze-da-Rocha E. Polymorphisms of the ELANE Gene Promoter Region in End-Stage Chronic Kidney Disease Patients. Genes (Basel) 2016; 7:genes7050017. [PMID: 27136588 PMCID: PMC4880837 DOI: 10.3390/genes7050017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 04/08/2016] [Accepted: 04/25/2016] [Indexed: 12/19/2022] Open
Abstract
End-stage renal disease (ESRD) patients have a high mortality rate that exceeds that of non-ESRD population. The hemodialysis procedure induces neutrophil activation and elastase release, which might have a role in the inflammatory process and in the development of oxidative stress. The ELANE gene encodes the neutrophil elastase. We analyzed the effect of ELANE promoter region polymorphisms and its relation with the circulating levels of elastase, as well as several clinical, biochemical and inflammatory markers in 123 ESRD patients. We found two duplications in heterozygosity in the promoter region and a new polymorphism, the c.-801G>A. ESRD patients heterozygous for the c.-903T>G polymorphism had no changes in the circulating levels of elastase or other evaluated variables, and those homozygous for the c.-741G>A polymorphism showed significant effects on neutrophils count, as well as in neutrophils/lymphocytes ratio, which might be associated with an increased inflammatory process.
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Affiliation(s)
- Rafael Fernandes
- UCIBIO/REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto,4050-313 Porto, Portugal.
| | - Bruno Freitas
- UCIBIO/REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto,4050-313 Porto, Portugal.
| | - Vasco Miranda
- Frenesius Medical Care, Nephrocare Maia, SA, Rua Altos 70, Maia, 4470-235 Porto, Portugal.
| | - Elísio Costa
- UCIBIO/REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto,4050-313 Porto, Portugal.
| | - Alice Santos-Silva
- UCIBIO/REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto,4050-313 Porto, Portugal.
| | - Elsa Bronze-da-Rocha
- UCIBIO/REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto,4050-313 Porto, Portugal.
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