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Guo X, Niu Z, Zhuang Y, Zhao Y, Ding Z, Shi J, Hou S, Fan H, Lv Q. Bone marrow mesenchymal stromal cells attenuate smoke inhalation injury by regulating the M1/M2-Th17/Treg immune homeostasis axis. Int Immunopharmacol 2024; 141:112986. [PMID: 39182266 DOI: 10.1016/j.intimp.2024.112986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 08/16/2024] [Accepted: 08/18/2024] [Indexed: 08/27/2024]
Abstract
Smoke inhalation injury (SII) is the leading cause of death in fire burn patients. The inflammatory response induced by smoke inhalation is a significant factor in the development of acute lung injury or acute respiratory distress syndrome (ALI/ARDS). Mesenchymal stem cells (MSCs) can alleviate various inflammatory diseases by regulating the polarization of macrophages from the M1 to the M2 phenotype. Moreover, MSCs can facilitate the inflammatory response by regulating Th17/Treg homeostasis. However, little is known about the associations among MSCs, M1/M2 macrophages and Th17/Treg homeostasis. Therefore, the purpose of this study was to evaluate whether MSCs affect subsequent Th17/Treg differentiation and immune homeostasis by regulating M1/M2 polarization in SII. Our results showed that bone marrow mesenchymal stem cells (BMSCs) ameliorated lung inflammatory injury and fibrosis after SII by affecting the polarization of alveolar macrophages (AMs) from the M1 to the M2 phenotype. Moreover, BMSCs maintain Th17/Treg immune homeostasis by increasing the proportion of Treg cells and decreasing the proportion of Th17 cells. In vitro, we further demonstrated that BMSCs promoted the polarization of AMs from the M1 to the M2 phenotype and decreased IL-23 levels. Reduced IL-23 decreased Th17 differentiation and promoted Th17/Treg balance. Therefore, BMSCs ameliorate the inflammatory response and lung damage after SII through regulating M1/M2 polarization and subsequent Th17/Treg immune homeostasis, which are linked to alveolar macrophage-derived IL-23. These findings provide novel insight into how BMSCs regulate the M1/M2-Th17/Treg immune homeostasis axis and provide new therapeutic targets for more effective control of the inflammatory response after SII.
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Affiliation(s)
- Xiaoqin Guo
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Key Laboratory for Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325026, China
| | - Zhifang Niu
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Key Laboratory for Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325026, China
| | - Yong Zhuang
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Key Laboratory for Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325026, China
| | - Yunlong Zhao
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Key Laboratory for Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325026, China
| | - Ziling Ding
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Key Laboratory for Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325026, China
| | - Jie Shi
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Key Laboratory for Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325026, China
| | - Shike Hou
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Key Laboratory for Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325026, China.
| | - Haojun Fan
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Key Laboratory for Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325026, China.
| | - Qi Lv
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Key Laboratory for Disaster Medicine Technology, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325026, China.
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Fang J, Wei H, Wang H, Wang J, Liu H, Chen Y, Chen L, Lu L, Zhang Q, Pan R, Cui E, Luo X. Human placenta-derived mesenchymal stem cell administration protects against acute lung injury in a mouse model. J Cell Biochem 2023; 124:1249-1258. [PMID: 37450693 DOI: 10.1002/jcb.30445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/08/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023]
Abstract
This study aims to investigate the effect of placenta-derived mesenchymal stem cells (PMSCs) administration on tissue repair following acute lung injury (ALI). PMSCs were transplanted intravenously to a mouse model of lipopolysaccharide-induced ALI. The therapeutic effects were determined by evaluating several indicators, including pathology; the wet/dry ratio of the lungs; blood gas analysis; the total protein content, cell numbers, and the activity of myeloperoxidase (MPO) in bronchial alveolar lavage fluid (BALF); and the levels of anti-inflammatory and proinflammatory cytokines in serum and BALF. To investigate the underlying mechanism, PMSC-derived exosomes were used for ALI treatment. Administration of PMSCs improved the degree of lung injury, reduced inflammation, increased the expression levels of anti-inflammatory cytokines, and protected lung function. As expected, the effects of PMSC-derived exosomes in the ALI model were similar to those of PMSCs, both in terms of improved lung function and reduced inflammation. These findings suggest that PMSCs have ameliorating effects on ALI that are potentially mediated via their secreted exosomes.
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Affiliation(s)
- Junbiao Fang
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Hanwei Wei
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Hongfa Wang
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Junkai Wang
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Huizi Liu
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Yue Chen
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Long Chen
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Ling Lu
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
| | - Qiang Zhang
- Key Laboratory of Cell-Based Drug and Applied Technology Development in Zhejiang Province, Hangzhou, China
| | - Ruolang Pan
- Key Laboratory of Cell-Based Drug and Applied Technology Development in Zhejiang Province, Hangzhou, China
| | - Enhai Cui
- Huzhou Central Hospital, Zhejiang University Huzhou Hospital, Huzhou, China
| | - Xiaopan Luo
- Department of Anesthesiology, Center for Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou medical College, Hangzhou, China
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Song M, Zhang X, Gao Y, Wan B, Wang J, Li J, Song Y, Shen X, Wang L, Huang M, Wang X. RNA sequencing reveals the emerging role of bronchoalveolar lavage fluid exosome lncRNAs in acute lung injury. PeerJ 2022; 10:e13159. [PMID: 35378935 PMCID: PMC8976476 DOI: 10.7717/peerj.13159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 03/03/2022] [Indexed: 01/12/2023] Open
Abstract
Background Bronchoalveolar lavage fluid (BALF) exosomes possess different properties in different diseases, which are mediated through microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), among others. By sequencing the differentially expressed lncRNAs in BALF exosomes, we seek potential targets for the diagnosis and treatment of acute lung injury (ALI). Methods Considering that human and rat genes are about 80% similar, ALI was induced using lipopolysaccharide in six male Wistar rats, with six rats as control (all weighing 200 ± 20 g and aged 6-8 weeks). BALF exosomes were obtained 24 h after ALI. The exosomes in BALF were extracted by ultracentrifugation. The differential expression of BALF exosomal lncRNAs in BALF was analyzed by RNA sequencing. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were performed to predict the functions of differentially expressed lncRNAs, which were confirmed by reverse transcription-polymerase chain reaction. Results Compared with the control group, the ALI group displayed a higher wet/dry ratio, tumor necrosis factor-α levels, and interleukin-6 levels (all P < 0.001). The airway injection of exosomes in rats led to significant infiltration by neutrophils. A total of 2,958 differentially expressed exosomal lncRNAs were identified, including 2,524 upregulated and 434 downregulated ones. Five lncRNAs confirmed the reliability of the sequencing data. The top three GO functions were phagocytic vesicle membrane, regulation of receptor biosynthesis process, and I-SMAD binding. Salmonella infection, Toll-like receptor signaling pathway, and osteoclast differentiation were the most enriched KEGG pathways. The lncRNA-miRNA interaction network of the five confirmed lncRNAs could be predicted using miRDB. Conclusions BALF-derived exosomes play an important role in ALI development and help identify potential therapeutic targets related to ALI.
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Affiliation(s)
- Meijuan Song
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiuwei Zhang
- Department of Respiratory and Critical Care Medicine, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yizhou Gao
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, China
| | - Bing Wan
- Department of Respiratory and Critical Care Medicine, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jinqiang Wang
- Department of Intensive Care Unit, Xuchang People’s Hospital, Xuchang, Henan, China
| | - Jinghang Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yuanyuan Song
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaowei Shen
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, China
| | - Li Wang
- Department of Respiratory and Critical Care Medicine, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Mao Huang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaowei Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, Jiangsu, China
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Jiang ZY, Liu MZ, Fu ZH, Liao XC, Xu B, Shi LL, Li JQ, Guo GH. The expression profile of lung long non-coding RNAs and mRNAs in a mouse model of smoke inhalation injury. Bioengineered 2022; 13:4978-4990. [PMID: 35152840 PMCID: PMC8973775 DOI: 10.1080/21655979.2022.2037922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
To study the potential expression of lung long non-coding RNAs (lncRNAs) and mRNAs during smoke inhalation injury (SII), using a SII mouse model that we created in our previous work. Microarray was used to investigate the lncRNAs and mRNAs profiles. A bioinformatics analysis was performed. Changes in the top 10 down-regulated and 10 up-regulated lncRNAs were validated using Quantitative Reverse Transcription-PCR (RT-qPCR). The acute lung injury (ALI) mouse model was successfully induced by smoke inhalation, as confirmed by the aberrantly modified cell numbers of red blood cells and neutrophils counts, increased levels of TNF-α, IL-1β, Bax, caspase-7, caspase-3, and decreased Bcl-2 content in lung tissues. When compared to the control mice, 577 lncRNAs and 517 mRNAs were found to be aberrantly expressed in the SII mice. According to the Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses, the altered mRNAs were enriched in acute-phase response, oxidoreductase activity, oxidation-reduction process, glutathione metabolism, the wnt signaling pathway, and ferroptosis. A lncRNA-related competitive endogenous RNA (ceRNA) network, including 383 lncRNAs, 318 MicroRNAs (miRNAs), and 421 mRNAs specific to SII, was established. The changes in NONMMUT026843.2, NONMMUT065071.2, ENSMUST00000235858.1, NONMMUT131395.1, NONMMUT122516.1, NONMMUT057916.2, and NONMMUT013388.2 in the lung matched the microarray results. Our findings help to provide a more comprehensive understanding of the pathogenesis of SII as well as new insights into potential therapeutic targets.
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Affiliation(s)
- Zheng-Ying Jiang
- Department of Burn, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Ming-Zhuo Liu
- Department of Burn, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Zhong-Hua Fu
- Department of Burn, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Xin-Cheng Liao
- Department of Burn, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Bin Xu
- Department of Burn, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Liang-Liang Shi
- Department of Burn, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Jia-Qi Li
- Department of Burn, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
| | - Guang-Hua Guo
- Department of Burn, The First Affiliated Hospital of Nanchang University, Nanchang, P. R. China
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Li W, Yang J, Zheng P, Li H, Zhao S. The Origins and Generation of Cancer-Associated Mesenchymal Stromal Cells: An Innovative Therapeutic Target for Solid Tumors. Front Oncol 2021; 11:723707. [PMID: 34513701 PMCID: PMC8427299 DOI: 10.3389/fonc.2021.723707] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 08/12/2021] [Indexed: 12/13/2022] Open
Abstract
Cancer-associated mesenchymal stromal cells (CA-MSCs) have been isolated from various types of tumors and are characterized by their vigorous pro-tumorigenic functions. However, very little is known about the origins and generating process of CA-MSCs, which may facilitate the identification of biomarkers for diagnosis or innovative targets for anti-cancer therapy to restrain the tumor growth, spread and chemotherapy resistance. Current evidences have indicated that both distally recruited and local resident MSCs are the primary origins of CA-MSCs. In a tissue type-dependent mode, tumor cells together with the TME components prompt the malignant transition of tumor “naïve” MSCs into CA-MSCs in a direct cell-to-cell contact, paracrine or exosome-mediated manner. In this review, we discuss the transition of phenotypes and functions of naïve MSCs into CA-MSCs influenced by tumor cells or non-tumor cells in the TME. The key areas remaining poorly understood are also highlighted and concluded herein.
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Affiliation(s)
- Wei Li
- Center of Research Laboratory, Department of Laboratory Medicine, The First People's Hospital of Lianyungang, Lianyungang, China
| | - Jin Yang
- Center of Research Laboratory, Department of Laboratory Medicine, The First People's Hospital of Lianyungang, Lianyungang, China
| | - Ping Zheng
- Center of Research Laboratory, Department of Laboratory Medicine, The First People's Hospital of Lianyungang, Lianyungang, China
| | - Haining Li
- Department of Clinical Laboratory Diagnostics, Kangda College of Nanjing Medical University, Lianyungang, China
| | - Shaolin Zhao
- Center of Research Laboratory, Department of Laboratory Medicine, The First People's Hospital of Lianyungang, Lianyungang, China
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Xiao C, Du M, Liu Y, Yu Y, Yang J. Edaravone attenuates smoke inhalation injury in rats by the Notch pathway. Am J Transl Res 2021; 13:4712-4718. [PMID: 34150051 PMCID: PMC8205801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To explore the protective effect of inhaled edaravone (EDA) on inflammation, oxidative stress (OS), and pulmonary function (PF) in rats after smoke inhalation injury (SII), as well as its mechanisms. METHODS Twenty-four rats were designated as group A (model group), group B (EBA prevention group), group C (low-dose group) and group D (high-dose group) (n=6 for each group). SII models were induced in all groups. After successful modeling, rats in each group were treated accordingly. After 6 hours of modeling, assessments of PF, oxygenation index (OI), inflammatory cytokine expression, oxidative stress index (OSI), wet/dry weight ratio (W/D), total lung water (TLW), and the expression of Notch markers were carried out. RESULTS Compared with group A, the remaining groups had higher peak respiratory velocity (PEF), forced expiratory volume in the first second (FEV1), FEV1/forced vital capacity (FVC) and OI, as well as lower W/D and TLW; levels of serum superoxide dismutase (SOD), malondialdehyde (MDA), tumor necrosis factor-α (TNF-α), and interleukin (IL)-6 decreased, and those of serum myeloperoxidase (MPO) and IL-10 increased. Levels of PEF, FEV1, FVC, OI, MPO, and IL-10 were higher in group A than in groups C and D, and those of W/D, TLW, SOD, MDA, TNF-α, and IL-6 were lower. Levels of Notch markers NICD, Hes1 and Hes5 were downregulated in groups B, C, and D, and in group B were lower than those in groups C and D. CONCLUSION Inhaled EDA is able to alleviate inflammation and OS and effectively improve PF in rats after SII, possibly by inhibiting the Notch pathway.
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Affiliation(s)
- Changshuan Xiao
- Department of Burn and Plastic Surgery, Affiliated Hospital of Chengde Medical UniversityChengde 067000, Hebei Province, China
| | - Minghua Du
- Department of Respiratory and Critical Care Medicine, Fengning Manchu Autonomous County HospitalChengde 067000, Hebei Province, China
| | - Yaping Liu
- Department of Gynecology, Affiliated Hospital of Chengde Medical UniversityChengde 067000, Hebei Province, China
| | - Yue Yu
- Department of Burn and Plastic Surgery, Affiliated Hospital of Chengde Medical UniversityChengde 067000, Hebei Province, China
| | - Jingzhe Yang
- Department of Burn and Plastic Surgery, Affiliated Hospital of Chengde Medical UniversityChengde 067000, Hebei Province, China
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Mercel AI, Gillis DC, Sun K, Dandurand BR, Weiss JM, Tsihlis ND, Maile R, Kibbe MR. A comparative study of a preclinical survival model of smoke inhalation injury in mice and rats. Am J Physiol Lung Cell Mol Physiol 2020; 319:L471-L480. [PMID: 32697601 DOI: 10.1152/ajplung.00241.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Smoke inhalation injury increases morbidity and mortality. Clinically relevant animal models are necessary for the continued investigation of the pathophysiology of inhalation injury and the development of therapeutics. The goal of our research was threefold: 1) to develop a reproducible survival model of smoke inhalation injury in rats that closely resembled our previous mouse model, 2) to validate the rat smoke inhalation injury model using a variety of laboratory techniques, and 3) to compare and contrast our rat model with both the well-established mouse model and previously published rat models to highlight our improvements on smoke delivery and lung injury. Mice and rats were anesthetized, intubated, and placed in custom-built smoke chambers to passively inhale woodchip-generated smoke. Bronchoalveolar lavage fluid (BALF) and lung tissue were collected for confirmatory tests. Lung sections were hematoxylin and eosin stained, lung edema was assessed with wet-to-dry (W/D) ratio, and inflammatory cell infiltration and cytokine elevation were evaluated using flow cytometry, immunohistochemistry, and ELISA. We confirmed that our mouse and rat models of smoke inhalation injury mimic the injury seen after human burn inhalation injury with evidence of pulmonary edema, neutrophil infiltration, and inflammatory cytokine elevation. Interestingly, rats mounted a more severe immunological response compared with mice. In summary, we successfully validated a reliable and clinically translatable survival model of lung injury and immune response in rats and mice and characterized the extent of this injury. These animal models allow for the continued study of smoke inhalation pathophysiology to ultimately develop a better therapeutic.
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Affiliation(s)
- Alexandra I Mercel
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - David C Gillis
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Kui Sun
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Brooke R Dandurand
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jenna M Weiss
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Nick D Tsihlis
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Rob Maile
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Curriculum of Toxicology and Environmental Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Melina R Kibbe
- Department of Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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BMSC-derived exosomes alleviate smoke inhalation lung injury through blockade of the HMGB1/NF-κB pathway. Life Sci 2020; 257:118042. [PMID: 32621926 DOI: 10.1016/j.lfs.2020.118042] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/21/2020] [Accepted: 06/29/2020] [Indexed: 12/12/2022]
Abstract
AIMS To investigate the role of bone marrow mesenchymal stem cell (BMSC)-derived exosomes in smoke inhalation lung injury. MAIN METHODS In this study, we initially isolated exosomes from BMSCs and identified them by western blot and transmission electron microscopy. BMSC-derived exosomes were then used to treat in vitro and in vivo models of smoke inhalation lung injury. Pathologic alterations in lung tissue, the levels of inflammatory factors and apoptosis-related factors, and the expression of HMGB1 and NF-κB were determined to evaluate the therapeutic effect of BMSC-derived exosomes. KEY FINDINGS We found that BMSC-derived exosomes could alleviate the injury caused by smoke inhalation. Smoke inhalation increased the levels of inflammatory factors and apoptosis-related factors and the expression of HMGB1 and NF-κB, and these increases were reversed by BMSC-derived exosomes. HMGB1 overexpression abrogated the exosome-induced decreases in inflammatory factors, apoptosis-related factors and NF-κB. SIGNIFICANCE Collectively, these results indicate that BMSC-derived exosomes can effectively alleviate smoke inhalation lung injury by inhibiting the HMGB1/NF-κB pathway, suggesting that exosome, a noncellular therapy, is a potential therapeutic strategy for inhalation lung injury.
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9
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Mercel A, Tsihlis ND, Maile R, Kibbe MR. Emerging therapies for smoke inhalation injury: a review. J Transl Med 2020; 18:141. [PMID: 32228626 PMCID: PMC7104527 DOI: 10.1186/s12967-020-02300-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 03/14/2020] [Indexed: 12/20/2022] Open
Abstract
Background Smoke inhalation injury increases overall burn mortality by up to 20 times. Current therapy remains supportive with a failure to identify an optimal or targeted treatment protocol for smoke inhalation injury. The goal of this review is to describe emerging therapies that are being developed to treat the pulmonary pathology induced by smoke inhalation injury with or without concurrent burn injury. Main body A comprehensive literature search was performed using PubMed (1995–present) for therapies not approved by the U.S. Food and Drug Administration (FDA) for smoke inhalation injury with or without concurrent burn injury. Therapies were divided based on therapeutic strategy. Models included inhalation alone with or without concurrent burn injury. Specific animal model, mechanism of action of medication, route of administration, therapeutic benefit, safety, mortality benefit, and efficacy were reviewed. Multiple potential therapies for smoke inhalation injury with or without burn injury are currently under investigation. These include stem cell therapy, anticoagulation therapy, selectin inhibition, inflammatory pathway modulation, superoxide and peroxynitrite decomposition, selective nitric oxide synthase inhibition, hydrogen sulfide, HMG-CoA reductase inhibition, proton pump inhibition, and targeted nanotherapies. While each of these approaches shows a potential therapeutic benefit to treating inhalation injury in animal models, further research including mortality benefit is needed to ensure safety and efficacy in humans. Conclusions Multiple novel therapies currently under active investigation to treat smoke inhalation injury show promising results. Much research remains to be conducted before these emerging therapies can be translated to the clinical arena.
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Affiliation(s)
- Alexandra Mercel
- Department of Surgery, University of North Carolina at Chapel Hill, 4041 Burnett Womack, 101 Manning Drive, CB# 7050, Chapel Hill, NC, 27599-7050, USA
| | - Nick D Tsihlis
- Department of Surgery, University of North Carolina at Chapel Hill, 4041 Burnett Womack, 101 Manning Drive, CB# 7050, Chapel Hill, NC, 27599-7050, USA
| | - Rob Maile
- Department of Surgery, University of North Carolina at Chapel Hill, 4041 Burnett Womack, 101 Manning Drive, CB# 7050, Chapel Hill, NC, 27599-7050, USA.,Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, USA
| | - Melina R Kibbe
- Department of Surgery, University of North Carolina at Chapel Hill, 4041 Burnett Womack, 101 Manning Drive, CB# 7050, Chapel Hill, NC, 27599-7050, USA. .,Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, USA.
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10
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Guo B, Bai Y, Ma Y, Liu C, Wang S, Zhao R, Dong J, Ji HL. Preclinical and clinical studies of smoke-inhalation-induced acute lung injury: update on both pathogenesis and innovative therapy. Ther Adv Respir Dis 2019; 13:1753466619847901. [PMID: 31068086 PMCID: PMC6515845 DOI: 10.1177/1753466619847901] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Smoke-inhalation-induced acute lung injury (SI-ALI) is a leading cause of morbidity and mortality in victims of fire tragedies. SI-ALI contributes to an estimated 30% of burn-caused patient deaths, and recently, more attention has been paid to the specific interventions for this devastating respiratory illness. In the last decade, much progress has been made in the understanding of SI-ALI patho-mechanisms and in the development of new therapeutic strategies in both preclinical and clinical studies. This article reviews the recent progress in the treatment of SI-ALI, based on pathophysiology, thermal damage, airway obstruction, the nuclear-factor kappa-B signaling pathway, and oxidative stress. Preclinical therapeutic strategies include use of mesenchymal stem cells, hydrogen sulfide, peroxynitrite decomposition catalysts, and proton-pump inhibitors. Clinical interventions include high-frequency percussive ventilation, perfluorohexane, inhaled anticoagulants, and nebulized epinephrine. The animal model, dose, clinical application, and pharmacology of these medications are summarized. Future directions and further needs for developing innovative therapies are discussed.
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Affiliation(s)
- Bingxin Guo
- Institute of Lung and Molecular Therapy, Xinxiang Medical University, Xinxiang Henan, China
| | - Yichun Bai
- Institute of Lung and Molecular Therapy, Xinxiang Medical University, Xinxiang Henan, China
| | - Yana Ma
- Institute of Lung and Molecular Therapy, Xinxiang Medical University, Xinxiang Henan, China
| | - Cong Liu
- Institute of Lung and Molecular Therapy, Xinxiang Medical University, Xinxiang Henan, China
| | - Song Wang
- Institute of Lung and Molecular Therapy, Xinxiang Medical University, Xinxiang Henan, China
| | - Runzhen Zhao
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, TX, USA
| | - Jiaxing Dong
- Institute of Lung and Molecular Therapy, Xinxiang Medical University, Xinxiang Henan, China
| | - Hong-Long Ji
- Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, TX, USA
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Liang Y, Yin C, Lu XI, Jiang H, Jin F. Bone marrow mesenchymal stem cells protect lungs from smoke inhalation injury by differentiating into alveolar epithelial cells via Notch signaling. J Biosci 2019; 44:2. [PMID: 30837354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
To examine the protective effect of transplanting bone marrow mesenchymal stem cells (BMSCs) in treating lung injuryinduced by smoke exposure and to investigate the underlying mechanisms of this protection. SD rats were randomlydivided into four groups: normal group, normal +BMSCGFP group, smoke group, and smoke +BMSCGFP group. Todetect lung injury, we measured arterial blood gas, the wet-to-dry weight ratio, and levels of interleukin-1b, tumor necrosisfactor-a, interleukin-10, and interleukin-13 in bronchoalveolar lavage fluid and lung tissues. We also conductedhistopathology examinations. The protein markers of alveolar epithelial cells were measured to determine the BMSCdifferentiation. The protein levels of Notch1, Jagged-1, and Hes-1 also were detected. In the present study, BMSCtransplantation significantly decreased the wet-dry weight ratio of the lung, reduced the production of inflammatorymediators, and alleviated lung injury simply through differentiating into alveolar type II cells and alveolar type I cells. Western blot analysis confirmed that the protein expression of Notch-1, Jagged-1, and Hes-1 increased significantly aftersystemic BMSC transplantation. No significant difference was observed between the normal group and the nor-mal +BMSCGFP group. Our findings indicate that systemic transplantation of BMSCs alleviated lung injury induced bysmoke exposure, which may be associated with BMSCs' ability to differentiate into alveolar-type cells via the Notchsignaling pathway.
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Affiliation(s)
- Yuan Liang
- Department of Respiration, Tangdu Hospital, The Fourth Military Medical University, Xi'an 710038, China
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Xiao P, Sun S, Cao J, Wang J, Li H, Hou S, Ding H, Liu Z, Fang Y, Bai S, Qin X, Yu F, Liu J, Wang X, Lv Q, Fan H. Expression profile of microRNAs in bronchoalveolar lavage fluid of rats as predictors for smoke inhalation injury. Burns 2018; 44:2042-2050. [DOI: 10.1016/j.burns.2018.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 06/08/2018] [Accepted: 07/19/2018] [Indexed: 02/08/2023]
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Reczyńska K, Tharkar P, Kim SY, Wang Y, Pamuła E, Chan HK, Chrzanowski W. Animal models of smoke inhalation injury and related acute and chronic lung diseases. Adv Drug Deliv Rev 2018; 123:107-134. [PMID: 29108862 DOI: 10.1016/j.addr.2017.10.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/09/2017] [Accepted: 10/10/2017] [Indexed: 10/18/2022]
Abstract
Smoke inhalation injury leads to various acute and chronic lung diseases and thus is the dominant cause of fire-related fatalities. In a search for an effective treatment and validation of therapies different classes of animal models have been developed, which include both small and large animals. These models have advanced our understanding of the mechanism of smoke inhalation injury, enabling a better understanding of pathogenesis and pathophysiology and development of new therapies. However, none of the animal models fully mirrors human lungs and their pathologies. All animal models have their limitations in replicating complex clinical conditions associated with smoke inhalation injury in humans. Therefore, for a correct interpretation of the results and to avoid bias, a precise understanding of similarities and differences of lungs between different animal species and humans is critical. We have reviewed and presented comprehensive comparison of different animal models and their clinical relevance. We presented an overview of methods utilized to induce smoke inhalation injuries, airway micro-/macrostructure, advantages and disadvantages of the most commonly used small and large animal models.
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