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Breznan D, Das DD, MacKinnon-Roy C, Bernatchez S, Sayari A, Hill M, Vincent R, Kumarathasan P. Physicochemical Properties Can Be Key Determinants of Mesoporous Silica Nanoparticle Potency in Vitro. ACS NANO 2018; 12:12062-12079. [PMID: 30475590 DOI: 10.1021/acsnano.8b04910] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nanoforms of mesoporous silica (mSiNPs) are increasingly applied in medicine, imaging, energy storage, catalysis, biosensors, and bioremediation. The impact of their physicochemical properties on health and the environment remain to be elucidated. In this work, newly synthesized mesoporous silica (sizes: 25, 70, 100, 170, and 600 nm; surface functionalization: pristine, C3-, and C11-COOH moieties) were assessed for cytotoxicity and induction of inflammatory responses in vitro (A549, THP-1, J774A.1 cells). All toxicity end points were integrated to obtain simple descriptors of biological potencies of these mSiNPs. The findings indicate that mSiNPs are less bioactive than the nonporous reference SiNP used in this study. The C3-COOH-modified mSiNPs were generally less cytotoxic than their pristine and C11-modified counterparts in the nanorange (≤100 nm). Carboxyl-modified mSiNPs affected inflammatory marker release across all sizes with cell-type specificity, suggesting a potential for immunomodulatory effects. Surface area, size, extent of agglomeration, ζ-potential, and surface modification appeared to be important determinants of cytotoxicity of mSiNPs based on association tests. Pathway analysis identified particle and cell-type-specific alteration of cellular pathways and functions by mSiNPs. The integration of exposure-related biological responses of multiple cell lines to mSiNPs allowed for a comprehensive evaluation of the impact of physicochemical factors on their toxicity characteristics. The integrated multilevel toxicity assessment approach can be valuable as a hazard screening tool for safety evaluations of emerging nanomaterials for regulatory purpose.
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Affiliation(s)
| | | | | | | | - Abdelhamid Sayari
- Department of Chemistry and Biomolecular Sciences , University of Ottawa , Ottawa , Ontario K1N 6N5 , Canada
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Zhang LM, Zhang Y, Fei C, Zhang J, Wang L, Yi ZW, Gao G. Neutralization of IL-18 by IL-18 binding protein ameliorates bleomycin-induced pulmonary fibrosis via inhibition of epithelial-mesenchymal transition. Biochem Biophys Res Commun 2018; 508:660-666. [PMID: 30527805 DOI: 10.1016/j.bbrc.2018.11.129] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 11/20/2018] [Indexed: 02/06/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a fatal parenchymal lung disease with limited effective therapies. Interleukin (IL)-18 belongs to a rather large IL-1 gene family and is a proinflammatory cytokine, which acts in both acquired and innate immunity. We have previously reported that IL-18 play an important role in lipopolysaccharide-induced acute lung injury in mice. Persistent inflammation often drives fibrotic progression in the bleomycin (BLM) injury model. However, the role of IL-18 in pulmonary fibrosis (PF) is still unknown. IL-18 binding protein (IL-18BP) is able to neutralize IL-18 biological activity and has a protective effect against renal fibrosis. The aim of this study was to investigate the effects of IL-18BP on BLM-induced PF. In the present study, we found that IL-18 was upregulated in lungs of BLM-injured mice. Neutralization of IL-18 by IL-18BP improved the survival rate and ameliorated BLM-induced PF in mice, which was associated with attenuated pathological changes, reduced collagen deposition, and decreased content of transforming growth factor-β1 (TGF-β1). We further demonstrated that IL-18BP treatment suppressed the BLM-induced epithelial mesenchymal transition (EMT), characterized by decreased α-smooth muscle actin (α-SMA) and increased E-cadherin (E-cad) in vivo. In addition, we provided in vitro evidence demonstrating that IL-18 promoted EMT through upregulation of Snail-1 in A549 cells. In conclusion, our findings raise the possibility that the increase of IL-18 is involved in the development of BLM-induced PF through modulating EMT in a Snail-1-dependent manner. IL-18BP may be a worthwhile candidate option for PF therapy.
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Affiliation(s)
- Li-Ming Zhang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Ying Zhang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Chang Fei
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Jun Zhang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Lin Wang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Zong-Wei Yi
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Ge Gao
- Department of Laboratory Medicine, Xiangya Medical College, Central South University, Changsha, Hunan, 41001, China; Department of Clinical Laboratory, Third Xiangya Hospital, Central South University, Changsha, Hunan, 41001, China.
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Gao S, Yi Y, Xia G, Yu C, Ye C, Tu F, Shen L, Wang W, Hua C. The characteristics and pivotal roles of triggering receptor expressed on myeloid cells-1 in autoimmune diseases. Autoimmun Rev 2018; 18:25-35. [PMID: 30408584 DOI: 10.1016/j.autrev.2018.07.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 07/09/2018] [Indexed: 01/13/2023]
Abstract
Triggering receptor expressed on myeloid cells-1 (TREM-1) engagement can directly trigger inflammation or amplify an inflammatory response by synergizing with TLRs or NLRs. Autoimmune diseases are a family of chronic systemic inflammatory disorders. The pivotal role of TREM-1 in inflammation makes it important to explore its immunological effects in autoimmune diseases. In this review, we summarize the structural and functional characteristics of TREM-1. Particularly, we discuss recent findings on TREM-1 pathway regulation in various autoimmune diseases, including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), inflammatory bowel disease (IBD), type 1 diabetes (T1D), and psoriasis. This receptor may potentially be manipulated to alter the inflammatory response to chronic inflammation and possible therapies are explored in this review.
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Affiliation(s)
- Sheng Gao
- Laboratory Animal Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Yongdong Yi
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Guojun Xia
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Chengyang Yu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Chenmin Ye
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Fuyang Tu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Leibin Shen
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Wenqian Wang
- Department of Breast Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China.
| | - Chunyan Hua
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.
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Zhang LM, Zhang J, Zhang Y, Wang L, Fei C, Yi ZW, Dong L. Interleukin-18 binding protein attenuates lipopolysaccharide-induced acute lung injury in mice via suppression NF-κB and activation Nrf2 pathway. Biochem Biophys Res Commun 2018; 505:837-842. [PMID: 30301527 DOI: 10.1016/j.bbrc.2018.09.193] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 09/29/2018] [Indexed: 12/17/2022]
Abstract
Interleukin (IL)-18 belongs to a rather large IL-1 gene family and is a proinflammatory cytokine. IL-18 plays important roles in lung injury. IL-18 binding protein (IL-18BP), a natural antagonist of IL-18, binds IL-18 with high affinity. IL-18BP is able to neutralize IL-18 biological activity and has a protective effect against renal fibrosis. The aim of this study was to evaluate the potential protective effect of IL-18BP on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice and to illuminate the underlying mechanisms. Results indicated that pretreatment with IL-18BP significantly attenuated LPS-induced pulmonary pathological injury. Meanwhile, IL-18BP pretreatment markedly inhibited infiltration of inflammatory cell and release of inflammatory factor in ALI mice in vivo and in primary macrophages after LPS insult in vitro. IL-18BP treatment dramatically reduced oxidative stress through increasing superoxide dismutase (SOD) and glutathione (GSH) contents, and decreasing the levels of malondialdehyde (MDA) and reactive oxygen species (ROS) in LPS-induced ALI mice and primary macrophages. Additionally, IL-18BP was also observed to markedly decreased the activation of nuclear factor-kappa B (NF-κB) and upregulated the nuclear factor erythroid 2-related factor 2 (Nrf2). Taken together, IL-18BP possessed protective effect against LPS-induced ALI, which might be associated with its regulation of NF-κB and Nrf2 activities. The results rendered IL-18BP worthy of further development into a pharmaceutical drug for the treatment of ALI.
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Affiliation(s)
- Li-Ming Zhang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Jun Zhang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Ying Zhang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Lin Wang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Chang Fei
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Zong-Wei Yi
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Liang Dong
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, 563000, China.
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Zhong W, Yang H, Guan X, Xiong J, Sun C, Zhang C, Luo X, Zhang Y, Zhang J, Duan J, Zhou Y, Guan C. Inhibition of glycolysis alleviates lipopolysaccharide‐induced acute lung injury in a mouse model. J Cell Physiol 2018; 234:4641-4654. [DOI: 10.1002/jcp.27261] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 07/24/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Wen‐Jing Zhong
- Department of Physiology Xiangya School of Medicine, Central South University Changsha China
| | - Hui‐Hui Yang
- Department of Physiology Xiangya School of Medicine, Central South University Changsha China
| | - Xin‐Xin Guan
- Department of Physiology Xiangya School of Medicine, Central South University Changsha China
| | - Jian‐Bing Xiong
- Department of Physiology Xiangya School of Medicine, Central South University Changsha China
| | - Chen‐Chen Sun
- Department of Physiology Xiangya School of Medicine, Central South University Changsha China
| | - Chen‐Yu Zhang
- Department of Physiology Xiangya School of Medicine, Central South University Changsha China
| | - Xiao‐Qin Luo
- Department of Physiology Xiangya School of Medicine, Central South University Changsha China
| | - Yan‐Feng Zhang
- Department of Physiology Xiangya School of Medicine, Central South University Changsha China
| | - Jun Zhang
- Department of Physiology Hunan University of Medicine Huaihua China
| | - Jia‐Xi Duan
- Department of Respiratory Medicine The Second Xiangya Hospital, Central South University Changsha China
| | - Yong Zhou
- Department of Physiology Xiangya School of Medicine, Central South University Changsha China
| | - Cha‐Xiang Guan
- Department of Physiology Xiangya School of Medicine, Central South University Changsha China
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56
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Zhang Y, Wang X, Liu Z, Yu L. Dexmedetomidine attenuates lipopolysaccharide induced acute lung injury by targeting NLRP3 via miR-381. J Biochem Mol Toxicol 2018; 32:e22211. [PMID: 30102002 DOI: 10.1002/jbt.22211] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 07/02/2018] [Accepted: 07/09/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Yong Zhang
- Department of Pain; Jinan Central Hospital Affiliated to Shandong University; Jinan 250012 Shandong China
- Department of Anesthesiology; Binzhou Medical University Hospital; Binzhou 256603 Shandong China
| | - Xuan Wang
- Department of Anesthesiology; Binzhou Medical University Hospital; Binzhou 256603 Shandong China
| | - Zhaoguo Liu
- Department of Anesthesiology; Binzhou Medical University Hospital; Binzhou 256603 Shandong China
| | - Lingzhi Yu
- Department of Pain; Jinan Central Hospital Affiliated to Shandong University; Jinan 250012 Shandong China
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57
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Association of Inflammatory Responses and ECM Disorganization with HMGB1 Upregulation and NLRP3 Inflammasome Activation in the Injured Rotator Cuff Tendon. Sci Rep 2018; 8:8918. [PMID: 29891998 PMCID: PMC5995925 DOI: 10.1038/s41598-018-27250-2] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 05/31/2018] [Indexed: 12/25/2022] Open
Abstract
Inflammation and extracellular matrix (ECM) disorganization following the rotator cuff tendon injuries (RCTI) delay the repair and healing process and the molecular mechanisms underlying RCTI pathology are largely unknown. Here, we examined the role of HMGB1 and NLRP3 inflammasome pathway in the inflammation and ECM disorganization in RCTI. This hypothesis was tested in a tenotomy-RCTI rat model by transecting the RC tendon from the humerus. H&E and pentachrome staining revealed significant changes in the morphology, architecture and ECM organization in RC tendon tissues following RCTI when compared with contralateral control. Severity of the injury was high in the first two weeks with improvement in 3–4 weeks following RCTI, and this correlated with the healing response. The expression of proteins associated with increased HMGB-1 and upregulation of NLRP3 inflammasome pathway, TLR4, TLR2, TREM-1, RAGE, ASC, Caspase-1, and IL-1β, in the first two weeks following RCTI followed by decline in 3–4 weeks. These results suggest the association of inflammatory responses and ECM disorganization with HMGB1 upregulation and NLRP3 inflammasome activation in the RC tendons and could provide novel target(s) for development of better therapeutic strategies in the management of RCTI.
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Wang X, Luo B, Lu Y, Pang D, Zheng J, Mo J, Huang H, Feng J. The triggering receptor expressed by myeloid cells-1 activates TLR4-MyD88-NF-κB-dependent signaling to aggravate ventilation-induced lung inflammation and injury in mice. Cell Tissue Res 2018; 374:137-148. [PMID: 29869715 DOI: 10.1007/s00441-018-2853-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 04/17/2018] [Accepted: 05/04/2018] [Indexed: 01/09/2023]
Abstract
The triggering receptor expressed by myeloid cells-1 (TREM-1) plays an important role in infectious and autoimmune diseases but how it contributes to ventilation-induced lung injury (VILI) and inflammation is unclear. Here, we examine the possibility that TREM-1 activates signaling dependent on Toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (Myd88) and nuclear factor (NF)-κB, which leads in turn to VILI. In a mouse model of VILI, which we validated based on lung edema and histopathology as well as cytokine levels, we examine mRNA and protein levels of TREM-1, TLR4, MyD88, NF-κB and its inhibitory protein I-κB in animals subjected to ventilation at normal or high tidal volume. The extent of lung edema, injury and inflammation were higher in the high tidal volume animals, as were the expression levels of all proteins examined. Treatment with TREM-1 agonist aggravated these effects, whereas treatment with TREM-1 antagonist attenuated them. Our results suggest that aggravation of VILI by TREM-1 in mice may be associated with TLR4-MyD88-NF-κB-dependent signaling.
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Affiliation(s)
- Xiaoxia Wang
- Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Xiang Zhu Rd No. 59, Nanning, 530002, People's Republic of China
| | - Bijun Luo
- Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Xiang Zhu Rd No. 59, Nanning, 530002, People's Republic of China
| | - Yanyan Lu
- Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Xiang Zhu Rd No. 59, Nanning, 530002, People's Republic of China
| | - Dengge Pang
- Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Xiang Zhu Rd No. 59, Nanning, 530002, People's Republic of China
| | - Jianqiu Zheng
- Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Xiang Zhu Rd No. 59, Nanning, 530002, People's Republic of China
| | - Jianlan Mo
- Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Xiang Zhu Rd No. 59, Nanning, 530002, People's Republic of China
| | - Hui Huang
- Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Xiang Zhu Rd No. 59, Nanning, 530002, People's Republic of China
| | - Jifeng Feng
- Department of Anesthesiology, The Maternal and & Child Health Hospital, The Children's Hospital, The Obstetrics & Gynecology Hospital of Guangxi Zhuang Autonomous Region, Xiang Zhu Rd No. 59, Nanning, 530002, People's Republic of China.
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Li Y, Li H, Liu S, Pan P, Su X, Tan H, Wu D, Zhang L, Song C, Dai M, Li Q, Mao Z, Long Y, Hu Y, Hu C. Pirfenidone ameliorates lipopolysaccharide-induced pulmonary inflammation and fibrosis by blocking NLRP3 inflammasome activation. Mol Immunol 2018; 99:134-144. [PMID: 29783158 DOI: 10.1016/j.molimm.2018.05.003] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 04/10/2018] [Accepted: 05/07/2018] [Indexed: 01/06/2023]
Abstract
Acute respiratory distress syndrome(ARDS)is a severe clinical disorder characterized by its acute onset, diffuse alveolar damage, intractable hypoxemia, and non-cardiogenic pulmonary edema. Acute lung injury(ALI) can trigger persistent lung inflammation and fibrosis through activation of the NLRP3 inflammasome and subsequent secretion of mature IL-1β, suggesting that the NLRP3 inflammasome is a potential therapeutic target for ALI, for which new therapeutic approaches are needed. Our present study aims to assess whether pirfenidone,with anti-fibrotic and anti-inflammatory properties, can improve LPS-induced inflammation and fibrosis by inhibiting NLRP3 inflammasome activation. Male C57BL/6 J mice were intratracheally injected with LPS to induce ALI. Mice were administered pirfenidone by oral gavage throughout the entire experimental course. The mouse macrophage cell line (J774 A.1) was incubated with LPS and ATP, with or without PFD pre-treatment. We demonstrated that PFD remarkably ameliorated LPS-induced pulmonary inflammation and fibrosis and reduced IL-1β and TGF-β1 levels in bronchoalveolar lavage fluid(BALF). Pirfenidone substantially reduced NLRP3 and ASC expression and inhibited caspase-1 activation and IL-1β maturation in lung tissues. In vitro, the experiments revealed that PFD significantly suppressed LPS/ATP-induced production of reactive oxygen species (ROS) and decreased caspase-1 activation and the level of IL-1β in J774 A.1 cells. Taken together, the administration of PFD reduced LPS-induced lung inflammation and fibrosis by blocking NLRP3 inflammasome activation and subsequent IL-1β secretion. These findings indicated that PFD can down-regulate NLRP3 inflammasome activation and that it may offer a promising therapeutic approach for ARDS patients.
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Affiliation(s)
- Yi Li
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Haitao Li
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Shuai Liu
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Pinhua Pan
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China.
| | - Xiaoli Su
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Hongyi Tan
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Dongdong Wu
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Lemeng Zhang
- Department of Thoracic Medicine, Hunan Cancer Hospital, Afliated to Xiangya Medical School, Central South University, Changsha 410008, China
| | - Chao Song
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Minhui Dai
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Qian Li
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Zhi Mao
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yuan Long
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yongbin Hu
- Department of Pathology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Chengping Hu
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
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Tang F, Fan K, Wang K, Bian C. Atractylodin attenuates lipopolysaccharide-induced acute lung injury by inhibiting NLRP3 inflammasome and TLR4 pathways. J Pharmacol Sci 2018; 136:203-211. [DOI: 10.1016/j.jphs.2017.11.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/16/2017] [Accepted: 11/27/2017] [Indexed: 12/19/2022] Open
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Sun GY, Yang HH, Guan XX, Zhong WJ, Liu YP, Du MY, Luo XQ, Zhou Y, Guan CX. Vasoactive intestinal peptide overexpression mediated by lentivirus attenuates lipopolysaccharide-induced acute lung injury in mice by inhibiting inflammation. Mol Immunol 2018; 97:8-15. [PMID: 29544087 DOI: 10.1016/j.molimm.2018.03.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 02/01/2018] [Accepted: 03/05/2018] [Indexed: 01/17/2023]
Abstract
Vasoactive intestinal peptide (VIP) is one of the most abundant neuropeptides in the lungs with various biological characters. We have reported that VIP inhibited the expressions of TREM-1 and IL-17A, which are involved in the initiation and amplification of inflammation in acute lung injury (ALI). However, the overall effect of VIP on ALI remains unknown. The aim of this study is to investigate the therapeutic effect of VIP mediated by lentivirus (Lenti-VIP) on lipopolysaccharide (LPS)-induced murine ALI. We found that the expression of intrapulmonary VIP peaked at day7 after the intratracheal injection of Lenti-VIP. Lenti-VIP increased the respiratory rate, lung compliance, and tidal volume, while decreased airway resistance in ALI mice, detected by Buxco system. Lenti-VIP significantly reduced inflammatory cell infiltration and maintained the integrity of the alveolar septa. Lenti-VIP also remarkably decreased the total protein level, the number of neutrophil and lactate dehydrogenase activity in the bronchoalveolar lavage fluid of LPS-induced ALI mice. In addition, Lenti-VIP down-regulated pro-inflammatory tumor necrosis factor (TNF)-α mRNA and protein expression, while up-regulated anti-inflammatory interleukin-10 mRNA and protein expression in lungs of ALI mice. Furthermore, we observed that VIP reduced the TNF-α expression in murine macrophages under LPS stimulation through protein kinase C and protein kinase A pathways. Together, our findings show that in vivo administration of lentivirus expressing VIP exerts a potent therapeutic effect on LPS-induced ALI in mice via inhibiting inflammation.
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Affiliation(s)
- Guo-Ying Sun
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China; School of Medicine, Hunan Normal University, Changsha, Hunan 410013, China
| | - Hui-Hui Yang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Xin-Xin Guan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Wen-Jing Zhong
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Yong-Ping Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Ming-Yuan Du
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Xiao-Qin Luo
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Yong Zhou
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China.
| | - Cha-Xiang Guan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China.
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Hu C, Jiang J, Li Z, Li Y. Expression pattern of soluble triggering receptor expressed on myeloid cells-1 in mice with Acinetobacter baumannii colonization and infection in the lung. J Thorac Dis 2018; 10:1614-1621. [PMID: 29707313 DOI: 10.21037/jtd.2018.03.41] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Acinetobacter baumannii (A. baumannii) is one of the most troublesome opportunistic pathogens associated with hospital-acquired pneumonia (HAP). It is important to be able to discriminate A. baumannii colonization from infection in its early stages so that effective antibiotics can be promptly applied. Recent studies have reported that the secretion of soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) is markedly upregulated in pneumonia and sepsis, but the expression pattern of sTREM-1 in A. baumannii colonization and infection in the lung has not been explored. Methods C57BL/6J male mice were intraperitoneally injected with 1% streptozotocin for 5 consecutive days to establish diabetic models. Subsequently, aerosol inhalation of A. baumannii suspension was performed in these mice to induce pulmonary colonization or infection with saline as vehicle control. Mice were sacrificed and lung tissue was harvested on days 0, 1, 3, 5 and 7 after exposure. Pharyngeal swab culture, lung homogenate culture, and H&E staining of lung tissue were performed to assess the severity of infectious inflammation. sTREM-1 expressions in serum and lung supernatants, serum procalcitonin (PCT) and C-reactive protein (CRP) concentrations were measured by ELISA. Results A. baumannii colonization and infection models were verified by pharyngeal swab culture, lung homogenate culture, and H&E staining. While sTREM-1 concentrations in mice with A. baumannii colonization remained unchanged in serum and lung supernatants, sTREM-1 expression levels in infected animals were significantly upregulated. In addition, serum sTREM-1 concentration was positively correlated with serum levels of PCT and CRP. Conclusions Dynamic secretion of sTREM-1 is associated with the development of A. baumannii infection in the lung. Therefore, sTREM-1 expression level may be a promising biomarker for discriminating A. baumannii infection from colonization.
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Affiliation(s)
- Chengping Hu
- Department of Respiratory Medicine (Department of Respiratory and Critical Care Medicine), Key Cite of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Juan Jiang
- Department of Respiratory Medicine (Department of Respiratory and Critical Care Medicine), Key Cite of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Zhen Li
- Department of Respiratory Medicine (Department of Respiratory and Critical Care Medicine), Key Cite of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yuanyuan Li
- Department of Respiratory Medicine (Department of Respiratory and Critical Care Medicine), Key Cite of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha 410008, China
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Shi R, Zhang J, Peng Z, Yuan S, Gao S, Chen L, Yuan Y. Expression level of 12-amino acid triggering receptor on myeloid cells-like transcript 1 derived peptide alleviates lipopolysaccharide-induced acute lung injury in mice. Int J Mol Med 2018; 41:2159-2168. [PMID: 29393375 DOI: 10.3892/ijmm.2018.3443] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Accepted: 11/23/2017] [Indexed: 11/06/2022] Open
Abstract
Acute lung injury (ALI) is a critical illness with a high morbidity and mortality rate due to severe inflammation in the lungs. The effects and underlying mechanism of the triggering receptor expressed on myeloid cells‑1 (TREM‑1)‑like transcript‑1‑derived peptide (LR12) on ALI remain unclear. The aim of the present study was to determine whether LR12 attenuates lipopolysaccharide (LPS)‑induced ALI and elucidate the mechanism underlying it. Male C57BL/6 mice were randomly assigned to three groups as follows: Sham group, LPS + scramble group and LPS + LR12 group. Normal saline (NS) or LPS was administrated by intratracheal instillation, and NS, LR12 or LR12 scramble was administered intraperitoneally 30 min later. The treatment was repeated every 3 h three times. Mice were sacrificed 24 h later. Pulmonary pathological changes, the lung wet/dry weight ratio, the macrophage and neutrophil counts in bronchoalveolar lavage fluid and myeloperoxidase (MPO) activity in the lung tissues were observed. The inflammatory cytokines were evaluated by enzyme‑linked immunosorbent assay and lung neutrophil infiltration was detected by immunohistochemistry. Nuclear factor (NF)‑κB p65 and TREM‑1 were analyzed by western blotting, and the activation of NF‑κB was detected by electrophoretic mobility shift assay. LPS‑induced pathohistological injury, edema and neutrophil infiltration were significantly alleviated by TREM‑1 inhibitor, LR12. The proinflammatory cytokines [interleukin (IL)‑6, IL‑1β, tumor necrosis factor‑α] and chemokines (keratinocyte chemokine and monocyte chemoattractant protein‑1) were significantly reduced, whereas the anti‑inflammatory cytokines, IL‑10 were significantly increased by LR12. LR12 was identified to significantly decrease p65 expression levels in the nucleus and inhibit the activity of NF‑κB. Furthermore, LR12 alleviated LPS‑induced ALI by reducing the expression of TREM‑1, increasing the release of soluble TREM‑1 and inhibiting activation of the NF-κB signaling pathway.
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Affiliation(s)
- Ruili Shi
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Jiancheng Zhang
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Zhang Peng
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Shiying Yuan
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Sumin Gao
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Lin Chen
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Yin Yuan
- Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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Abstract
Traumatic injury as one of the world's most relevant but neglected health concerns results in modulated inflammasome activity, which is closely linked to the development of post-injury complications. Cytokine-producing capacity of cells is important for the appropriate immune response to trauma and requires not only synthesis and transcription of inflammasome components but also their activation. Unfortunately, the precise role of inflammasome in trauma is still largely unknown. However, in the following chapter, we provide an overview on the best described inflammasomes in the various settings of trauma, introducing the recent findings on the up-to-date best described NLRP inflammasomes and underlying cytokines in the inflammatory response to trauma.
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Affiliation(s)
- Borna Relja
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany.
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65
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Duan JX, Zhou Y, Zhou AY, Guan XX, Liu T, Yang HH, Xie H, Chen P. Calcitonin gene-related peptide exerts anti-inflammatory property through regulating murine macrophages polarization in vitro. Mol Immunol 2017; 91:105-113. [DOI: 10.1016/j.molimm.2017.08.020] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/04/2017] [Accepted: 08/22/2017] [Indexed: 01/10/2023]
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Jolly L, Lemarie J, Carrasco K, Popovic B, Derive M, Boufenzer A, Gibot S. Triggering Receptor Expressed on Myeloid cells-1: a new player in platelet aggregation. Thromb Haemost 2017; 117:1772-1781. [PMID: 28837205 DOI: 10.1160/th17-03-0156] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 05/11/2017] [Indexed: 12/13/2022]
Abstract
Triggering Receptor Expressed on Myeloid cells-1 (TREM-1) is an immunoreceptor initially known to be expressed on neutrophils and monocytes/macrophages. TREM-1 acts as an amplifier of the inflammatory response during both infectious and aseptic inflammatory diseases. Another member of the TREM family, The Triggering receptor expressed on myeloid cells Like Transcript-1 (TLT-1) is exclusively expressed in platelets and promotes platelet aggregation. As the gene that encodes for TLT-1 is located in the TREM-1 gene cluster, this prompted us to investigate the expression of TREM-1 on platelets. Here we show that TREM-1 is constitutively expressed in α-granules and mobilised at the membrane upon platelet activation. Pharmacologic inhibition of TREM-1 reduces platelet activation as well as platelet aggregation induced by collagen, ADP, and thrombin in human platelets. Aggregation is similarly impaired in platelets from Trem-1-/- mice. In vivo, TREM-1 inhibition decreases thrombus formation in a carotid artery model of thrombosis and protects mice during pulmonary embolism without excessive bleeding. These findings suggest that TREM-1 inhibition could be useful adducts in antiplatelet therapies.
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Affiliation(s)
| | | | | | | | | | | | - Sebastien Gibot
- Prof. Sébastien Gibot, Service de Réanimation Médicale, Hôpital Central, 29 avenue de Lattre de Tassigny, 54035 Nancy Cedex, France, Tel.: +33 383852970, Fax: +33 383858511, E-mail:
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