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Özer A, Erel S, Küçük A, Demirtaş H, Sezen ŞC, Boyunağa H, Oktar GL, Arslan M. Evaluation of the effect of enriched hydrogen saline solution on distant organ (lung) damage in skeletal muscle ischemia reperfusion in rats. Sci Prog 2024; 107:368504241257060. [PMID: 38807538 PMCID: PMC11138186 DOI: 10.1177/00368504241257060] [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] [Indexed: 05/30/2024]
Abstract
INTRODUCTION Ischemia-reperfusion (IR) injury is a major concern that frequently occurs during vascular surgeries. Hydrogen-rich saline (HRS) solution exhibits antioxidant and anti-inflammatory properties. This study aimed to examine the effects of HRS applied before ischemia in the lungs of rats using a lower extremity IR model. MATERIAL AND METHODS After approval was obtained from the ethics committee, 18 male Wistar albino rats weighing 250-280 g were randomly divided into three groups: control (C), IR and IR-HRS. In the IR and IR-HRS groups, an atraumatic microvascular clamp was used to clamp the infrarenal abdominal aorta, and skeletal muscle ischemia was induced. After 120 min, the clamp was removed, and reperfusion was achieved for 120 min. In the IR-HRS group, HRS was administered intraperitoneally 30 min before the procedure. Lung tissue samples were examined under a light microscope and stained with hematoxylin-eosin (H&E). Malondialdehyde (MDA) levels, total sulfhydryl (SH) levels, and histopathological parameters were evaluated in the tissue samples. RESULTS MDA and total SH levels were significantly higher in the IR group than in the control group (p < 0.0001 and p = 0.001, respectively). MDA and total SH levels were significantly lower in the IR-HRS group than in the IR group (p < 0.0001 and p = 0.013, respectively). A histopathological examination revealed that neutrophil infiltration/aggregation, alveolar wall thickness, and total lung injury score were significantly higher in the IR group than in the control group (p < 0.0001, p = 0.001, and p < 0.0001, respectively). Similarly, alveolar wall thickness and total lung injury scores were significantly higher in the IR-HRS group than in the control group (p = 0.009 and p = 0.004, respectively). A statistically significant decrease was observed in neutrophil infiltration/aggregation and total lung injury scores in the IR-HRS group compared to those in the IR group (p = 0.023 and p = 0.022, respectively). CONCLUSION HRS at a dose of 20 mg/kg, administered intraperitoneally 30 min before ischemia in rats, reduced lipid peroxidation and oxidative stress, while also reducing IR damage in lung histopathology. We believe that HRS administered to rats prior to IR exerts a lung-protective effect.
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Affiliation(s)
- Abdullah Özer
- Department of Cardiovascular Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Selin Erel
- Department of Anesthesiology and Reanimation, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Ayşegül Küçük
- Department of Medical Physiology, Kutahya Health Sciences University Faculty of Medicine, Kutahya, Turkey
| | - Hüseyin Demirtaş
- Department of Cardiovascular Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Şaban Cem Sezen
- Department of Histology and Embryology, Kırıkkale University Faculty of Medicine, Kırıkkale, Turkey
| | - Hakan Boyunağa
- Department of Medical Biochemistry, Medipol University Faculty of Medicine, Ankara, Turkey
| | - Gürsel Levent Oktar
- Department of Cardiovascular Surgery, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Mustafa Arslan
- Department of Anesthesiology and Reanimation, Gazi University Faculty of Medicine, Ankara, Turkey
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Huang X, Liu Z, Quan ZS, Guo HY, Shen QK. Synthesis and structure-activity relationship studies of fusidic acid derivatives as anti-inflammatory agents for acute lung injury. Bioorg Chem 2023; 141:106885. [PMID: 37804700 DOI: 10.1016/j.bioorg.2023.106885] [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: 06/27/2023] [Revised: 09/13/2023] [Accepted: 09/24/2023] [Indexed: 10/09/2023]
Abstract
Acute lung injury (ALI) are severe forms of diffuse lung disease that impose a substantial health burden all over the world. In the United States, approximately 190,000 cases per year of ALI each year, with an associated 74,500 deaths per year. Anti-inflammatory therapy has become a reasonable approach for the treatment of patients with ALI. In this study, fusidic acid derivatives were used to design new anti-inflammatory compounds with high pharmacological activity and low toxicity. A total of 30 new fusidic acid derivatives were discovered, synthesized, and screened for their anti-inflammatory activity against lipopolysaccharide (LPS)-treated RAW264.7 cells. Of them, b2 was found to be the most active, with a higher efficiency compared with fusidic acid and celecoxib in 10 μM. In vitro, we further measured b2 inhibited inflammatory factor NO (IC50 = 5.382 ± 0.655 μM), IL-6 (IC50 = 7.767 ± 0.871 μM), and TNF-α (IC50 = 7.089 ± 0.775 μM) and b2 inhibited inflammatory cytokines COX-2 and iNOS, ROS production, NF-κB/MAPK and Bax/Bcl-2 signaling pathway pathway. In vivo,b2 attenuated ALI pathological changes and inhibited inflammatory cytokines COX-2 and iNOS in lung tissue and NF-κB/MAPK and Bax/Bcl-2 signaling pathway. In conclusion, b2 may be a promising anti-inflammatory lead compound.
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Affiliation(s)
- Xing Huang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Zheng Liu
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China
| | - Zhe-Shan Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China.
| | - Hong-Yan Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China.
| | - Qing-Kun Shen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, China.
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Zhao J, Xu L, Lv L, Wang L, Wang X, Liang C, Wang C, Qiu Y, Pei X. Network pharmacology and in vivo and in vitro experiments to determine the mechanism behind the effects of Jiawei Yanghe decoction via TLR4/Myd88/NF-κB against mastitis. Heliyon 2023; 9:e21219. [PMID: 37964842 PMCID: PMC10641157 DOI: 10.1016/j.heliyon.2023.e21219] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/15/2023] [Accepted: 10/18/2023] [Indexed: 11/16/2023] Open
Abstract
Background In the Qing dynasty, Yanghe decoction was as a therapeutic soup for effectively treating chronic inflammatory disorders. It was used as a therapeutic soup for effectively treating chronic inflammatory disorders. In the clinical use of Yanghe decoction, the adjustment of the medication for a variety of inflammatory diseases have therapeutic effect, including mastitis. Therefore, Jiawei Yanghe decoction (JWYHD) may be used to treat inflammatory breast diseases. Methods First, LM- and JWYHD-related components were retrieved from the database and analysis platform. Next, protein-protein interaction networks were constructed to screen the key targets, and gene ontology and Kyoto encyclopedia of gene and genome enrichment analyses were performed to predict the potential biological functions and mechanisms of JWYHD. Simultaneously, the JWYHD samples were collected and analyzed by UPLC-HRMS. Finally, in vivo and in vitro experiments were conducted to construct animal and cellular inflammation models of mastitis with LPS. Pathological changes in the mammary tissues were detected. Enzyme-linked immunosorbent assay, reverse transcription-polymerase chain reaction, and Western blotting was performed to determine the mRNA and protein levels of inflammatory cytokines and toll-like receptor 4/myeloid differentiation primary response 88/nuclear factor kappa B signaling pathway in the breast tissues to elucidate the potential underlying mechanisms of anti-mastitis effects of JWYHD from different aspects. Results In total, 103 compounds were detected in JWYHD by UPLC-HRMS. 691 active ingredients of JWYHD were screened by network pharmacology, and 47 LM-related targets were identified. The PPI network analysis of the targets revealed the 5 core targets. The KEGG enrichment results established the NF-κB signaling pathways as the core. After JWYHD intervention, low inflammatory enrichment and mild inflammatory damage in breast tissues were observed. Furthermore, JWYHD treatment affected mammary gland inflammatory cytokines and the TLR4/Myd88/NF-κB signaling pathway by considerably reducing the respective protein levels and gene expression; thus, JWYHD alleviated LM symptoms. Conclusions We hypothesized and demonstrated the anti-inflammatory effects of JWYHD by cytokine regulation via the TLR4/Myd88/NF-κB signaling pathway. In conclusion, JWYHD showed its potential in LM treatment and in treating other acute and chronic inflammatory diseases.
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Affiliation(s)
- Jing Zhao
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, China
| | - Liuyan Xu
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, China
| | - Lingyan Lv
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, China
| | - Liuyi Wang
- Xiamen University, Xiamen, 361102, China
| | - Xuan Wang
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, China
| | - Chen Liang
- Dongfang Hospital Beijing University of Chinese Medicine, Beijing, 100078, China
| | - Chunhui Wang
- Fangshan Hospital Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Yan Qiu
- Eye Institute of Xiamen University, Xiamen, 361102, China
| | - Xiaohua Pei
- Xiamen Hospital of Beijing University of Traditional Chinese Medicine, Xiamen, 361015, China
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4
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Schapochnik A, Alonso PT, de Souza V, Rodrigues V, Quintela K, Cruz MDP, Ferreira CM, Cecatto RB, Rodrigues MFSD, Hamblin MR, Lino-Dos-Santos-Franco A. Intravascular laser irradiation of blood (ILIB) used to treat lung diseases: a short critical review. Lasers Med Sci 2023; 38:93. [PMID: 36964849 PMCID: PMC10039675 DOI: 10.1007/s10103-023-03750-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/10/2023] [Indexed: 03/26/2023]
Abstract
Intravascular laser irradiation of blood (ILIB) was developed to treat cardiovascular diseases due to its rheological effects. In its original form, ILIB was applied by an intravenous optical fiber, restricting its application. However, this technique was modified to non-invasive irradiation through the radial artery, now called vascular photobiomodulation (VPBM). Many studies have used both, ILIB and VPBM, to treat lung diseases. It is well established that lung diseases affect more than 300 million people worldwide with high morbidity and mortality rates. In this short critical review, we discuss the potential benefits of photobiomodulation to treat lung diseases using these two approaches. The search was performed in the electronic database of MEDLINE (Medical Literature Analysis and Retrieval System Online) via PubMed. The data search was carried out from 1991 to 2017. We selected a total of 10 clinical studies using either ILIB or VPBM, in addition to 2 experimental studies in animals. The respiratory diseases treated in these studies included bronchitis, asthma, pneumonia, and tuberculosis. The results showed overall beneficial effects on lung diseases, characterized by a reduction in the inflammatory cascade and antioxidant effects, improvement of hemodynamic parameters, the efficiency of gas exchange, and reduction of hospitalization periods. In conclusion, all studies showed promising effects of ILIB in both animal and human studies. The studies did not discuss any disadvantages or contraindications. However, further studies are needed in order to understand the dosimetry, and the literature is lacking in randomized, controlled clinical trials. Thus, this review highlights the need for additional studies using this approach.
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Affiliation(s)
- Adriana Schapochnik
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, 01504-000, Brazil
| | - Paula Tatiane Alonso
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, 01504-000, Brazil
| | - Vanessa de Souza
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, 01504-000, Brazil
| | - Virginia Rodrigues
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, 01504-000, Brazil
| | - Kelly Quintela
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, 01504-000, Brazil
| | - Marlon da Palma Cruz
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, 01504-000, Brazil
| | | | - Rebeca Boltes Cecatto
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, 01504-000, Brazil
| | - Maria Fernanda Setubal Destro Rodrigues
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, 01504-000, Brazil
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, 2028, South Africa
| | - Adriana Lino-Dos-Santos-Franco
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, 01504-000, Brazil.
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Xu L, Zhu Y, Li C, Wang Q, Ma L, Wang J, Zhang S. Small extracellular vesicles derived from Nrf2-overexpressing human amniotic mesenchymal stem cells protect against lipopolysaccharide-induced acute lung injury by inhibiting NLRP3. Biol Direct 2022; 17:35. [PMID: 36447296 PMCID: PMC9706911 DOI: 10.1186/s13062-022-00351-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 11/21/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Acute lung injury (ALI) is a major cause of respiratory failure in critically ill patients that results in significant morbidity and mortality. Recent studies indicate that cell-based therapies may be beneficial in the treatment of ALI. We recently demonstrated that Nrf2-overexpressing human amniotic mesenchymal stem cells (hAMSCs) reduce lung injury, fibrosis and inflammation in lipopolysaccharide (LPS)-challenged mice. Here we tested whether small extracellular vesicles (sEVs) derived from Nrf2-overexpressing hAMSCs (Nrf2-sEVs) could protect against ALI. sEVs were isolated from hAMSCs that overexpressed (Nrf2-sEVs) or silenced (siNrf2-sEVs) Nrf2. We examined the effects of sEVs treatment on lung inflammation in a mouse model of ALI, where LPS was administered intratracheally to mice, and lung tissues and bronchoalveolar lavage fluid (BALF) were analyzed 24 h later. METHODS Histological analysis, immunofluorescence microscopy, western blotting, RT-PCR and ELISA were used to measure the inflammatory response in the lungs and BALF. RESULTS We found that sEVs from hAMSCs are protective in ALI and that Nrf2 overexpression promotes protection against lung disease. Nrf2-sEVs significantly reduced lung injury in LPS-challenged mice, which was associated with decreased apoptosis, reduced infiltration of neutrophils and macrophages, and inhibition of pro-inflammatory cytokine expression. We further show that Nrf2-sEVs act by inhibiting the activation of the NLRP3 inflammasome and promoting the polarization of M2 macrophages. CONCLUSION Our data show that overexpression of Nrf2 protects against LPS-induced lung injury, and indicate that a novel therapeutic strategy using Nrf2-sEVs may be beneficial against ALI.
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Affiliation(s)
- Lijuan Xu
- grid.24516.340000000123704535Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 7th Floor, Building 1, No. 301 Middle Yanchang Road, Jing’an District, Shanghai, 200072 China
| | - Yunlou Zhu
- grid.24516.340000000123704535Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 7th Floor, Building 1, No. 301 Middle Yanchang Road, Jing’an District, Shanghai, 200072 China
| | - Congye Li
- grid.24516.340000000123704535Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 7th Floor, Building 1, No. 301 Middle Yanchang Road, Jing’an District, Shanghai, 200072 China
| | - Qixing Wang
- grid.24516.340000000123704535Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 7th Floor, Building 1, No. 301 Middle Yanchang Road, Jing’an District, Shanghai, 200072 China
| | - Lijie Ma
- grid.24516.340000000123704535Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 7th Floor, Building 1, No. 301 Middle Yanchang Road, Jing’an District, Shanghai, 200072 China
| | - Junjie Wang
- grid.24516.340000000123704535Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 7th Floor, Building 1, No. 301 Middle Yanchang Road, Jing’an District, Shanghai, 200072 China
| | - Shouqin Zhang
- grid.24516.340000000123704535Department of Critical Care Medicine, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, 7th Floor, Building 1, No. 301 Middle Yanchang Road, Jing’an District, Shanghai, 200072 China
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Ömercioğlu G, Akat F, Fıçıcılar H, Billur D, Çalışkan H, Kızıl Ş, Bayram P, Can B, Baştuğ M. Effects of aerobic exercise on lipopolysaccharide-induced experimental acute lung injury in the animal model of type 1 diabetes mellitus. Exp Physiol 2021; 107:42-57. [PMID: 34802172 DOI: 10.1113/ep089974] [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: 08/03/2021] [Accepted: 11/17/2021] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? We evaluated the effects of diabetes and exercise on lipopolysaccharide-induced acute lung injury. By providing a comprehensive analysis of redox status, blood gases and histological parameters, we aimed to contribute to the ongoing debate in the literature. What are the main findings and its importance? We demonstrated the preventive effect of exercise, but diabetes did not alter the severity of acute lung injury. ABSTRACT Acute lung injury (ALI) is a life-threatening respiratory condition. Diabetes (DM) is a metabolic disease characterized by hyperglycaemia. There is an ongoing debate concerning whether there is a protective effect of diabetes in ALI. Exercise is a special type of physical activity that has numerous beneficial effects. The aim of our study was to investigate the effects of diabetes and exercise on the prognosis of ALI. Male Wistar albino rats were divided into two groups (sedentary and exercise). Both groups were divided into four subgroups: Control, ALI, DM, DM+ALI (n = 6 each). Diabetes was induced by injection of streptozotocin (50 mg/kg i.p.). The maximal exercise capacity was determined with the incremental load test. Animals were exercised on a treadmill for 45 min at 70% of maximal exercise capacity, 5 days a week for 12 weeks. Acute lung injury was induced by intratracheal injection of lipopolysaccharide (100 μg/100 g body weight) 24 h before the end of the experiment. We performed arterial blood gas analysis. Redox status was measured in both plasma and lung tissue. Malondialdehyde and 8-hydroxy-2'-deoxyguanosine levels were measured in lung tissue. Lung tissue was evaluated histologically. Acute lung injury caused significant damage in the lung tissue, which was verified histologically, with an increase in oxidative stress parameters. Exercise prevented the lung damage induced by ALI and reduced oxidative stress in the lung tissue. Diabetes did not alter the magnitude of damage done by ALI. Exercise showed a protective effect against DM and ALI in rats. The effect of DM was insignificant for the prognosis of ALI.
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Affiliation(s)
- Göktuğ Ömercioğlu
- Department of Physiology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Fırat Akat
- Department of Physiology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Hakan Fıçıcılar
- Department of Physiology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Deniz Billur
- Department of Histology and Embryology, Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Hasan Çalışkan
- Department of Physiology, Faculty of Medicine, Ankara University, Ankara, Turkey.,Department of Physiology, Faculty of Medicine, Balikesir University, Balikesir, Turkey
| | - Şule Kızıl
- Department of Histology and Embryology, Faculty of Medicine, Ankara University, Ankara, Turkey.,Department of Histology and Embryology, Faculty of Medicine, Lokman Hekim University, Ankara, Turkey
| | - Pınar Bayram
- Department of Histology and Embryology, Faculty of Medicine, Ankara University, Ankara, Turkey.,Department of Histology and Embryology, Faculty of Medicine, Kafkas University, Ankara, Turkey
| | - Belgin Can
- Department of Histology and Embryology, Faculty of Medicine, Ankara University, Ankara, Turkey.,Department of Physiology, Faculty of Medicine, Balikesir University, Balikesir, Turkey
| | - Metin Baştuğ
- Department of Physiology, Faculty of Medicine, Ankara University, Ankara, Turkey
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Correa Deza MA, Rodríguez de Olmos A, Suárez NE, Font de Valdez G, Salva S, Gerez CL. Inorganic polyphosphate from the immunobiotic Lactobacillus rhamnosus CRL1505 prevents inflammatory response in the respiratory tract. Saudi J Biol Sci 2021; 28:5684-5692. [PMID: 34588880 PMCID: PMC8459082 DOI: 10.1016/j.sjbs.2021.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 11/25/2022] Open
Abstract
Lactobacillus (L.) rhamnosus CRL1505 accumulates inorganic polyphosphate (polyP) in its cytoplasm in response to environmental stress. The aim of this study was to evaluate the potential effects of polyP from the immunobiotic CRL1505 on an acute respiratory inflammation murine animal model induced by lipopolysaccharide (LPS). First, the presence of polyP granules in the cytoplasm of CRL1505 strain was evidenced by specific staining. Then, it was demonstrated in the intracellular extracts (ICE) of CRL1505 that polyP chain length is greater than 45 phosphate residues. In addition, the functionality of the genes involved in the polyP metabolism (ppk, ppx1 and ppx2) was corroborated by RT-PCR. Finally, the possible effect of the ICE of CRL1505 strain containing polyP and a synthetic polyP was evaluated in vivo using a murine model of acute lung inflammation. It was observed that the level of cytokines pro-inflammatory (IL-17, IL-6, IL-2, IL-4, INF-γ) in serum was normalized in mice treated with ICE, which would indicate that polyP prevents the local inflammatory response in the respiratory tract. The potential application of ICE from L. rhamnosus CRL1505 as a novel bioproduct for the treatment of respiratory diseases is one of the projections of this work.
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Affiliation(s)
- María A Correa Deza
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Antonieta Rodríguez de Olmos
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Nadia E Suárez
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Susana Salva
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Carla L Gerez
- Centro de Referencia para Lactobacilos (CERELA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Miguel de Tucumán, Tucumán, Argentina
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Barry M, Trivedi A, Miyazawa BY, Vivona LR, Khakoo M, Zhang H, Pathipati P, Bagri A, Gatmaitan MG, Kozar R, Stein D, Pati S. Cryoprecipitate attenuates the endotheliopathy of trauma in mice subjected to hemorrhagic shock and trauma. J Trauma Acute Care Surg 2021; 90:1022-1031. [PMID: 33797484 PMCID: PMC8141010 DOI: 10.1097/ta.0000000000003164] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Plasma has been shown to mitigate the endotheliopathy of trauma. Protection of the endothelium may be due in part to fibrinogen and other plasma-derived proteins found in cryoprecipitate; however, the exact mechanisms remain unknown. Clinical trials are underway investigating early cryoprecipitate administration in trauma. In this study, we hypothesize that cryoprecipitate will inhibit endothelial cell (EC) permeability in vitro and will replicate the ability of plasma to attenuate pulmonary vascular permeability and inflammation induced by hemorrhagic shock and trauma (HS/T) in mice. METHODS In vitro, barrier permeability of ECs subjected to thrombin challenge was measured by transendothelial electrical resistance. In vivo, using an established mouse model of HS/T, we compared pulmonary vascular permeability among mice resuscitated with (1) lactated Ringer's solution (LR), (2) fresh frozen plasma (FFP), or (3) cryoprecipitate. Lung tissue from the mice in all groups was analyzed for markers of vascular integrity, inflammation, and inflammatory gene expression via NanoString messenger RNA quantification. RESULTS Cryoprecipitate attenuates EC permeability and EC junctional compromise induced by thrombin in vitro in a dose-dependent fashion. In vivo, resuscitation of HS/T mice with either FFP or cryoprecipitate attenuates pulmonary vascular permeability (sham, 297 ± 155; LR, 848 ± 331; FFP, 379 ± 275; cryoprecipitate, 405 ± 207; p < 0.01, sham vs. LR; p < 0.01, LR vs. FFP; and p < 0.05, LR vs. cryoprecipitate). Lungs from cryoprecipitate- and FFP-treated mice demonstrate decreased lung injury, decreased infiltration of neutrophils and activation of macrophages, and preserved pericyte-endothelial interaction compared with LR-treated mice. Gene analysis of lung tissue from cryoprecipitate- and FFP-treated mice demonstrates decreased inflammatory gene expression, in particular, IL-1β and NLRP3, compared with LR-treated mice. CONCLUSION Our data suggest that cryoprecipitate attenuates the endotheliopathy of trauma in HS/T similar to FFP. Further investigation is warranted on active components and their mechanisms of action.
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Affiliation(s)
- Mark Barry
- University of California, San Francisco. Department of Surgery. 513 Parnassus Ave. San Francisco, CA 94143
| | - Alpa Trivedi
- University of California, San Francisco. Department of Laboratory Medicine. 513 Parnassus Ave. San Francisco, CA 94143
| | - Byron Y. Miyazawa
- University of California, San Francisco. Department of Laboratory Medicine. 513 Parnassus Ave. San Francisco, CA 94143
| | - Lindsay R. Vivona
- University of California, San Francisco. Department of Laboratory Medicine. 513 Parnassus Ave. San Francisco, CA 94143
| | - Manisha Khakoo
- University of California, San Francisco. Department of Laboratory Medicine. 513 Parnassus Ave. San Francisco, CA 94143
| | - Haoqian Zhang
- University of California, San Francisco. Department of Laboratory Medicine. 513 Parnassus Ave. San Francisco, CA 94143
| | - Praneeti Pathipati
- University of California, San Francisco. Department of Laboratory Medicine. 513 Parnassus Ave. San Francisco, CA 94143
| | - Anil Bagri
- Cerus Corporation. 1220 Concord Ave. Concord, CA
| | | | - Rosemary Kozar
- Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD
| | - Deborah Stein
- University of California, San Francisco. Department of Surgery. 513 Parnassus Ave. San Francisco, CA 94143
| | - Shibani Pati
- University of California, San Francisco. Department of Laboratory Medicine. 513 Parnassus Ave. San Francisco, CA 94143
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Wang M, Zhong H, Zhang X, Huang X, Wang J, Li Z, Chen M, Xiao Z. EGCG promotes PRKCA expression to alleviate LPS-induced acute lung injury and inflammatory response. Sci Rep 2021; 11:11014. [PMID: 34040072 PMCID: PMC8154949 DOI: 10.1038/s41598-021-90398-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 05/10/2021] [Indexed: 12/11/2022] Open
Abstract
Acute lung injury (ALI), which could be induced by multiple factors such as lipopolysaccharide (LPS), refer to clinical symptoms of acute respiratory failure, commonly with high morbidity and mortality. Reportedly, active ingredients from green tea have anti-inflammatory and anticancer properties, including epigallocatechin-3-gallate (EGCG). In the present study, protein kinase C alpha (PRKCA) is involved in EGCG protection against LPS-induced inflammation and ALI. EGCG treatment attenuated LPS-stimulated ALI in mice as manifested as improved lung injury scores, decreased total cell amounts, neutrophil amounts and macrophage amounts, inhibited the activity of MPO, decreased wet-to-dry weight ratio of lung tissues, and inhibited release of inflammatory cytokines TNF-α, IL-1β, and IL-6. PRKCA mRNA and protein expression showed to be dramatically decreased by LPS treatment while reversed by EGCG treatment. Within LPS-stimulated ALI mice, PRKCA silencing further aggravated, while PRKCA overexpression attenuated LPS-stimulated inflammation and ALI through MAPK signaling pathway. PRKCA silencing attenuated EGCG protection. Within LPS-induced RAW 264.7 macrophages, EGCG could induce PRKCA expression. Single EGCG treatment or Lv-PRKCA infection attenuated LPS-induced increases in inflammatory factors; PRKCA silencing could reverse the suppressive effects of EGCG upon LPS-stimulated inflammatory factor release. In conclusion, EGCG pretreatment inhibits LPS-induced ALI in mice. The protective mechanism might be associated with the inhibitory effects of PRKCA on proinflammatory cytokine release via macrophages and MAPK signaling pathway.
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Affiliation(s)
- Mian Wang
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Xiangya RD 110, Changsha, 410078, China
- Department of Epidemiology and Health Statistics, School of Public Health, University of South China, Hengyang, 421001, China
| | - Hua Zhong
- Department of Cardiology, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Xian Zhang
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Xiangya RD 110, Changsha, 410078, China
| | - Xin Huang
- Department of Epidemiology and Health Statistics, Hunan Normal University, Changsha, 410006, China
| | - Jing Wang
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Xiangya RD 110, Changsha, 410078, China
| | - Zihao Li
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Xiangya RD 110, Changsha, 410078, China
| | - Mengshi Chen
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Xiangya RD 110, Changsha, 410078, China.
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Central South University, Changsha, 410078, China.
| | - Zhenghui Xiao
- Hunan Provincial Key Laboratory of Pediatric Emergency, Hunan Children's Hospital, Changsha, 410006, China
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Lavranou GA, Mentzelopoulos S, Katsaounou P, Siempos I, Kalomenidis I, Geranaki A, Routsi C, Zakynthinos S. Can Coagulation System Disorders and Cytokine and Inflammatory Marker Levels Predict the Temporary Clinical Deterioration or Improvement of Septic Patients on ICU Admission? J Clin Med 2021; 10:jcm10081548. [PMID: 33917002 PMCID: PMC8067680 DOI: 10.3390/jcm10081548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/30/2021] [Accepted: 03/30/2021] [Indexed: 11/16/2022] Open
Abstract
Although coagulation disorders and immune/inflammatory response have been associated with the final outcome of patients with sepsis, their link with thetemporaryclinical deterioration or improvement of patients is unknown. We aimed to investigate this link. We prospectively included consecutive patients admitted to the intensive care unit (ICU) with a suspected diagnosis of infection and evaluated within the first 24 h from admission. Blood levels of many cytokines and inflammatory and coagulation factors were measured and their predictive value was assessed by calculating the Area Under the Receiver Operating Characteristic (AUROC) curves. Patients (n = 102) were allocated in five groups, i.e., sepsis (n = 14), severe sepsis (n = 17), septic shock (n = 28), Systemic Inflammatory Response Syndrome (SIRS) without infection (n = 17), and trauma/surgery without SIRS or infection (n = 26). In septic shock, coagulation factors FVII and FIX and Protein C had AUROCs 0.67-0.78. In severe sepsis, Antithrombin III, Protein C, C-reactive protein, Procalcitonin and Thrombopoietin had AUROCs 0.73-0.75. In sepsis, Tumor Necrosis Factor a, and Interleukins 1β and 10 had AUROCs 0.66-0.72. In patients admitted to the ICU with a suspected diagnosis of infection, coagulation factors and inhibitors, as well as cytokine and inflammatory marker levels, have substantial predictive value in distinct groups of septic patients.
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Affiliation(s)
- Georgia-Athanasia Lavranou
- First Department of Intensive Care Medicine, School of Medicine, National and Kapodistrian University of Athens, ‘Evangelismos’ Hospital, 45-47 Ipsilandou St, GR-10675 Athens, Greece; (G.-A.L.); (S.M.); (P.K.); (I.S.); (I.K.); (C.R.)
| | - Spyros Mentzelopoulos
- First Department of Intensive Care Medicine, School of Medicine, National and Kapodistrian University of Athens, ‘Evangelismos’ Hospital, 45-47 Ipsilandou St, GR-10675 Athens, Greece; (G.-A.L.); (S.M.); (P.K.); (I.S.); (I.K.); (C.R.)
| | - Paraskevi Katsaounou
- First Department of Intensive Care Medicine, School of Medicine, National and Kapodistrian University of Athens, ‘Evangelismos’ Hospital, 45-47 Ipsilandou St, GR-10675 Athens, Greece; (G.-A.L.); (S.M.); (P.K.); (I.S.); (I.K.); (C.R.)
| | - Ilias Siempos
- First Department of Intensive Care Medicine, School of Medicine, National and Kapodistrian University of Athens, ‘Evangelismos’ Hospital, 45-47 Ipsilandou St, GR-10675 Athens, Greece; (G.-A.L.); (S.M.); (P.K.); (I.S.); (I.K.); (C.R.)
| | - Ioannis Kalomenidis
- First Department of Intensive Care Medicine, School of Medicine, National and Kapodistrian University of Athens, ‘Evangelismos’ Hospital, 45-47 Ipsilandou St, GR-10675 Athens, Greece; (G.-A.L.); (S.M.); (P.K.); (I.S.); (I.K.); (C.R.)
| | - Aikaterini Geranaki
- Hematology Laboratory, ‘Evangelismos’ Hospital, 45-47 Ipsilandou St, GR-10675 Athens, Greece;
| | - Christina Routsi
- First Department of Intensive Care Medicine, School of Medicine, National and Kapodistrian University of Athens, ‘Evangelismos’ Hospital, 45-47 Ipsilandou St, GR-10675 Athens, Greece; (G.-A.L.); (S.M.); (P.K.); (I.S.); (I.K.); (C.R.)
| | - Spyros Zakynthinos
- First Department of Intensive Care Medicine, School of Medicine, National and Kapodistrian University of Athens, ‘Evangelismos’ Hospital, 45-47 Ipsilandou St, GR-10675 Athens, Greece; (G.-A.L.); (S.M.); (P.K.); (I.S.); (I.K.); (C.R.)
- Correspondence:
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11
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Khan MZ, Khan A, Xiao J, Ma J, Ma Y, Chen T, Shao D, Cao Z. Overview of Research Development on the Role of NF-κB Signaling in Mastitis. Animals (Basel) 2020; 10:E1625. [PMID: 32927884 PMCID: PMC7552152 DOI: 10.3390/ani10091625] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 08/26/2020] [Accepted: 08/28/2020] [Indexed: 12/11/2022] Open
Abstract
Mastitis is the inflammation of the mammary gland. Escherichia coli and Staphylococcus aureus are the most common bacteria responsible for mastitis. When mammary epithelial cells are infected by microorganisms, this activates an inflammatory response. The bacterial infection is recognized by innate pattern recognition receptors (PRRs) in the mammary epithelial cells, with the help of Toll-like receptors (TLRs). Upon activation by lipopolysaccharides, a virulent agent of bacteria, the TLRs further trigger nuclear factor-κB (NF-κB) signaling to accelerate its pathogenesis. The NF-κB has an essential role in many biological processes, such as cell survival, immune response, inflammation and development. Therefore, the NF-κB signaling triggered by the TLRs then regulates the transcriptional expression of specific inflammatory mediators to initiate inflammation of the mammary epithelial cells. Thus, any aberrant regulation of NF-κB signaling may lead to many inflammatory diseases, including mastitis. Hence, the inhibiting of NF-κB signaling has potential therapeutic applications in mastitis control strategies. In this review, we highlighted the regulation and function of NF-κB signaling in mastitis. Furthermore, the role of NF-κB signaling for therapeutic purposes in mastitis control has been explored in the current review.
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Affiliation(s)
- Muhammad Zahoor Khan
- State Key Laboratory of Animal Nutrition, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (M.Z.K.); (J.X.); (J.M.); (Y.M.); (T.C.)
| | - Adnan Khan
- Key Laboratory of Animal Genetics, Breeding, and Reproduction, Ministry of Agriculture & National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
| | - Jianxin Xiao
- State Key Laboratory of Animal Nutrition, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (M.Z.K.); (J.X.); (J.M.); (Y.M.); (T.C.)
| | - Jiaying Ma
- State Key Laboratory of Animal Nutrition, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (M.Z.K.); (J.X.); (J.M.); (Y.M.); (T.C.)
| | - Yulin Ma
- State Key Laboratory of Animal Nutrition, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (M.Z.K.); (J.X.); (J.M.); (Y.M.); (T.C.)
| | - Tianyu Chen
- State Key Laboratory of Animal Nutrition, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (M.Z.K.); (J.X.); (J.M.); (Y.M.); (T.C.)
| | - Dafu Shao
- Institute of Agricultural Information of CAAS, Beijing 100081, China;
| | - Zhijun Cao
- State Key Laboratory of Animal Nutrition, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (M.Z.K.); (J.X.); (J.M.); (Y.M.); (T.C.)
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12
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Jia Y, Leung SM, Turan A, Artis AS, Marciniak D, Mick S, Devarajan J, Duncan AE. Low Tidal Volumes Are Associated With Slightly Improved Oxygenation in Patients Having Cardiac Surgery. Anesth Analg 2020; 130:1396-1406. [DOI: 10.1213/ane.0000000000004608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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13
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Xue BB, Chen BH, Tang YN, Weng CW, Lin LN. Dexmedetomidine protects against lung injury induced by limb ischemia-reperfusion via the TLR4/MyD88/NF-κB pathway. Kaohsiung J Med Sci 2019; 35:672-678. [PMID: 31373750 DOI: 10.1002/kjm2.12115] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 07/10/2019] [Indexed: 12/15/2022] Open
Abstract
Dexmedetomidine (DEX) can protect the lung from ischemia-reperfusion (I/R) injury, but the underlying mechanisms are not fully understood. The aims of this study were to determine whether DEX attenuates lung injury following lower extremity I/R and to investigate the related toll-like receptor 4 (TLR4) signaling pathway. Twenty-eight SD rats were divided into four groups (n = 7): Sham, I/R, I/R + DEX (25 μg/kg prior to ischemia), and I/R + DEX + Atip (250 μg/kg atipamezole before DEX treatment). Lower extremity I/R was induced by left femoral artery clamping for 3 hours and followed by 2 hours reperfusion. Quantitative alveolar damage and the wet/dry (W/D) ratio were calculated. Interleukin (IL)-1, IL-6, and tumor necrosis factor (TNF)-α in the bronchoalveolar lavage fluid (BALF) and serum and myeloperoxidase (MPO) in the lung were measured. The TLR4 and MyD88 mRNA expression levels were measured by RT-PCR, nuclear factor (NF)-κB, and phosphorylated NF-κB by western blot, respectively. Quantitative alveolar damage, W/D ratio, MPO, BALF and serum IL-1, IL-6, and TNF-α, and TLR4, MyD88, NF-κB, and p-NF-κB expression significantly increased in the I/R group relative to the Sham group. DEX preconditioning significantly reduced lung edema, and histological injury relative to the I/R group. Serum and BALF IL-1, IL-6, and TNF-α levels, MPO activity and TLR4, MyD88, NF-κB, and p-NF-κB expression were also significantly reduced in the I/R + DEX group compared with the I/R group. Atipamezole partially reversed all the aforementioned effects. DEX preconditioning protects the lungs against lower extremity I/R injury via α2-adrenoceptor-dependent and α2-adrenoceptor-independent mechanisms. It also suppresses the TLR4 pathway and reduces inflammation.
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Affiliation(s)
- Bin-Bin Xue
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Bai-Hui Chen
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ya-Ning Tang
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Cheng-Wei Weng
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Li-Na Lin
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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14
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Wang D, Wang X, Tong W, Cui Y, Li X, Sun H. Umbelliferone Alleviates Lipopolysaccharide-Induced Inflammatory Responses in Acute Lung Injury by Down-Regulating TLR4/MyD88/NF-κB Signaling. Inflammation 2019; 42:440-448. [PMID: 30645708 DOI: 10.1007/s10753-018-00953-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This study investigated the protective effect and underlying mechanism of action of umbelliferone (Umb) against lipopolysaccharide (LPS)-induced acute lung injury (ALI). An intragastric Umb injection prior to the administration of LPS dramatically decreased the wet/dry lung weight ratio, attenuated inflammatory cell infiltration in lung tissue, and reduced the LPS-induced production of inflammatory cytokines, including monocyte chemotactic protein-1(MCP-1), interleukin (IL)-6, tumor necrosis factor-α (TNF-α), and IL-1β, in broncheoalveolar lavage fluid (BALF). In addition, Umb resulted in significant anti-oxidative effects as shown by decreased myeloperoxidase (MPO) and malondialdehyde (MDA) activity and increased superoxide dismutase (SOD) activity compared with the LPS group. Finally, the inhibitory effects of Umb on the expression of toll-like receptor 4 (TLR4)/myeloid differentiation protein 88 (MyD88)/nuclear factor-κB (NF-κB) signaling pathway proteins were also measured. Our results clearly indicated that Umb exerted significant protective effects on LPS-induced ALI by inhibiting the activation of the TLR4/MyD88/NF-κB pathway.
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Affiliation(s)
- Dongqiu Wang
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China
| | - Xia Wang
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China
| | - Wen Tong
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China
| | - Yuhong Cui
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China
| | - Xiuxian Li
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China
| | - Haiyun Sun
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China.
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15
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Young BP, Loparo KA, Dick TE, Jacono FJ. Ventilatory pattern variability as a biometric for severity of acute lung injury in rats. Respir Physiol Neurobiol 2019; 265:161-171. [PMID: 30928542 PMCID: PMC9994622 DOI: 10.1016/j.resp.2019.03.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 03/05/2019] [Accepted: 03/26/2019] [Indexed: 01/27/2023]
Abstract
We hypothesize that ventilatory pattern variability (VPV) varies with the magnitude of acute lung injury (ALI). In adult male rats, we instilled a low- or high- dose of bleomycin or saline (PBS) intratracheally. While representative samples of pulmonary tissue indicated graded lung injury, coefficient of variation (CV) of TTOT did not differ among the 3 groups. Broncho-alveolar lavage fluid (BALF), respiratory rate (fR), mutual information were greater in ALI than sham rats; but did not differ between bleomycin doses. However, nonlinear complexity index (NLCI), which is the difference in sample entropy between original and surrogate data sets was greater for high- versus low- dose; but did not differ between low-dose and sham groups. Further, NLCI correlated to an injury index based on protein concentration of BALF and failure to gain weight. Finally, Receiver Operator Curves (ROCs) indicated that both mutual information and NLCI had greater sensitivity and specificity than fR and CVTTOT in identifying ALI. Thus, nonlinear analyses of VPV can distinguish ALI and out performs fR as a biometric.
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Affiliation(s)
- Benjamin P Young
- Division of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Kenneth A Loparo
- Department of Electrical Engineering and Computer Science, School of Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Thomas E Dick
- Division of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Neurosciences, School of Medicine Case Western Reserve University, Cleveland, OH 44106, USA.
| | - Frank J Jacono
- Division of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA; Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Louis Stokes VA Medical Center, Cleveland, OH 44106, USA
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16
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Qu L, Chen C, He W, Chen Y, Li Y, Wen Y, Zhou S, Jiang Y, Yang X, Zhang R, Shen L. Glycyrrhizic acid ameliorates LPS-induced acute lung injury by regulating autophagy through the PI3K/AKT/mTOR pathway. Am J Transl Res 2019; 11:2042-2055. [PMID: 31105816 PMCID: PMC6511780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
Acute lung injury (ALI) is a major pathological issue characterized by serious inflammatory response, and a major clinically critical illness with high morbidity and mortality. Glycyrrhizic acid (GA) is a major bioactive constituent isolated from traditional Chinese herb licorice, which has been reported to have positive effects on inflammation. Nevertheless, the effects of GA on lipopolysaccharide (LPS)-treated ALI in mice have not been reported. The purpose of our study is to investigate the inhibitory effects of GA on ALI treated by LPS and to elucidate its possible mechanisms. We found that GA significantly attenuated lung injury and decreased the production of inflammatory factors TNF-α, IL-1β, and HMGB1 with LPS treatment. GA induced autophagy which was showed by enhanced number of autophagosomes through upregulating the protein levels of LC3-II/I and Beclin-1 and downregulating SQSTM1/P62. Moreover, pre-treatment of 3-Methyladenine (3-MA), an autophagy inhibitor, reversed the inhibiting effects of GA on the secretion of inflammatory factors in ALI. The PI3K/AKT/mTOR pathway was associated with GA-induced autophagy under ALI induced by LPS. In conclusion, this study indicated that GA inhibited the production of inflammatory factors in LPS-induced ALI by regulating the PI3K/AKT/mTOR pathway related autophagy, which may provide a novel therapeutic perspective of GA in ameliorating ALI.
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Affiliation(s)
- Lihua Qu
- Department of Physiology, Hunan Normal University School of MedicineChangsha 410013, China
| | - Chao Chen
- Department of Pathology and Key Laboratory of Cancer Stem Cells and Translational Medicine, Hunan Normal University School of MedicineChangsha 410013, China
| | - Wei He
- Department of Ultrasonography, The Third Xiangya Hospital of Central South UniversityChangsha 410013, China
| | - Yangye Chen
- Department of Physiology, Hunan Normal University School of MedicineChangsha 410013, China
| | - Yi Li
- Department of Physiology, Hunan Normal University School of MedicineChangsha 410013, China
| | - Yi Wen
- Department of Pharmacy and Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University School of MedicineChangsha 410013, China
| | - Sichun Zhou
- Department of Pharmacy and Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University School of MedicineChangsha 410013, China
| | - Yiqun Jiang
- Department of Physiology, Hunan Normal University School of MedicineChangsha 410013, China
| | - Xiaoping Yang
- Department of Pharmacy and Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, Hunan Normal University School of MedicineChangsha 410013, China
| | - Ran Zhang
- Department of Immunology, Hunan Normal University School of MedicineChangsha 410013, China
| | - Li Shen
- Department of Physiology, Hunan Normal University School of MedicineChangsha 410013, China
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Prevalence and Risk Factors of Hypoxemia after Coronary Artery Bypass Grafting: The Time to Change Our Conceptions. J Tehran Heart Cent 2019; 14:74-80. [PMID: 31723349 PMCID: PMC6842024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Background: Acute hypoxemia is the main characteristic of acute respiratory distress syndrome (ARDS), which is one of the most critical complications of coronary artery bypass grafting (CABG). Given the dearth of data on acute hypoxemia, we sought to determine its prevalence and risk factors among post-CABG patients. Methods: This cross-sectional study was conducted on on-pump CABG patients in Tehran Heart Center in 2 consecutive months in 2012. The effects of arterial blood gas variables, age, gender, the duration of the pump and cross-clamping, the ejection fraction, the creatinine level, and the body mass index on the prevalence of hypoxemia at the cutoff points of ARDS and acute lung injury were assessed. Results: Out of a total of 232 patients who remained in the study, 174 (75.0%) cases were male. The mean age was 60.60±9.42 years, and the mean body mass index was 27.15±3.93 kg/m2. None of the patients expired during the current admission. The ratio of partial pressure arterial oxygen to the fraction of inspired oxygen (PaO2/FiO2) 1 hour after admission to the intensive care unit (ICU), before extubation, and at 4 hours after extubation was less than 300 mmHg in 66.6%, 72.2%, and 86.6% of the patients and less than 200 mmHg in 20.8% 17.7%, and 30.2% of the patients, respectively. Among the different variables, only a heavier weight was associated with a PaO2/FiO2 ratio of less than 300 mmHg at 1 hour after ICU admission and at 4 hours after extubation (P=0.001). A rise in the cross-clamp time showed a significant association with the risk of a PaO2/FiO2 ratio of less than 200 mmHg at 4 hours after extubation (P=0.014). Conclusion: This study shows that hypoxemia following CABG is very common in the first 48 postoperative hours, although it is a benign and transient event. The high prevalence may affect the accuracy of the ARDS criteria and their positive or negative predictive value.
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Yeh JJ. Predictors of Initial Smear-Negative Active Pulmonary Tuberculosis with Acute Early Stage Lung Injury by High-Resolution Computed Tomography and Clinical Manifestations: An Auxiliary Model in Critical Patients. Sci Rep 2019; 9:4527. [PMID: 30872774 PMCID: PMC6418143 DOI: 10.1038/s41598-019-40799-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 02/21/2019] [Indexed: 12/13/2022] Open
Abstract
This study evaluated the diagnostic use of high-resolution computed tomography (HRCT), chest X-ray (CXR), and clinical manifestations (CM) to identify initial smear-negative (iSN) active pulmonary tuberculosis (aPTB) [iSN-aPTB] in patients with iSN-pulmonary diseases (PD) and acute lung injury (ALI). In the derivation cohort, the [iSN-PD] with ALI patients were divided into the [iSN-aPTB] (G1, n = 26) and [non-aPTB-PD] (G2, n = 233) groups. Lung morphology, number, and lobar (segmental) distribution were evaluated using CXR and HRCT. A multivariate analysis was performed to identify independent variables associated with G1, which were used to generate predictive score models for G1. The predictive model was validated in a separate population of patients (n = 372) with [iSN-PD] and (ALI). The validated model for [HRCT (CXR + Hypoalbuminemia)] had 93.5% (25.8%) sensitivity, 99.5% (89.4%) specificity, and a negative predictive value of 99.5% (93.0%). For [iSN-aPTB], the post-test probability in the derivation cohort (prevalence = 10%), validation cohort (prevalence = 8.3%), and the given prevalence (prevalence = 1%) was 88.7%, 94.4%, and 41.5%, respectively. The HRCT model effectively identified the [iSN-aPTB] subjects among the [iSN-PD] with ALI, regardless of CM. The [non-aPTB-PD] were also correctly classified by the HRCT and [CXR + Hypoalbuminemia] models.
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Affiliation(s)
- Jun-Jun Yeh
- Department of Pulmonary Medicine, Section of Thoracic Imaging, and Family Medicine, Ditmanson Medical Foundation, Chia-Yi Christian Hospital, Chiayi, Taiwan.
- Chia Nan University of Pharmacy and Science, Tainan, Taiwan.
- China Medical University, Taichung, Taiwan.
- Pingtung Christian Hospital, Pingtung, Taiwan.
- Heng Chun Christian Hospital, Pingtung, Taiwan.
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WANG PQ, LI J, ZHANG LL, LV HC, ZHANG SH. Identification of Key Metabolites for Acute Lung Injury in Patients with Sepsis. IRANIAN JOURNAL OF PUBLIC HEALTH 2019; 48:77-84. [PMID: 30847314 PMCID: PMC6401565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The study aimed to detect critical metabolites in acute lung injury (ALI). METHODS A comparative analysis of microarray profile of patients with sepsis-induced ALI compared with sepsis patients with was conducted using bioinformatic tools through constructing multi-omics network. Multi-omics composite networks (gene network, metabolite network, phenotype network, gene-metabolite association network, phenotype-gene association network, and phenotype-metabolite association network) were constructed, following by integration of these composite networks to establish a heterogeneous network. Next, seed genes, and ALI phenotype were mapped into the heterogeneous network to further obtain a weighted composite network. Random walk with restart (RWR) was used for the weighted composite network to extract and prioritize the metabolites. On the basis of the distance proximity among metabolites, the top 50 metabolites with the highest proximity were identified, and the top 100 co-expressed genes interacted with the top 50 metabolites were also screened out. RESULTS Totally, there were 9363 nodes and 10,226,148 edges in the integrated composite network. There were 4 metabolites with the scores > 0.009, including CHITIN, Tretinoin, sodium ion, and Celebrex. Adenosine 5'-diphosphate, triphosadenine, and tretinoin had higher degrees in the composite network and the co-expressed network. CONCLUSION Adenosine 5'-diphosphate, triphosadenine, and tretinoin may be potential biomarkers for diagnosis and treatment of ALI.
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Affiliation(s)
- Pei-Quan WANG
- Department of Intensive Care Unit, Linzi District People’s Hospital, Zibo, Shandong 255400, China
| | - Jing LI
- Department of Geratology, Linzi District People’s Hospital, Zibo, Shandong 255400, China
| | - Li-Li ZHANG
- Department of Intensive Care Unit, Linzi District People’s Hospital, Zibo, Shandong 255400, China
| | - Hong-Chun LV
- Department of Intensive Care Unit, Linzi District People’s Hospital, Zibo, Shandong 255400, China
| | - Su-Hua ZHANG
- Department of Health Care, Qilu Hospital of Shandong University (Qingdao), Qingdao, Shandong 266000, China,Corresponding Author:
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Design, synthesis and biological evaluation of novel 2-sulfonylindoles as potential anti-inflammatory therapeutic agents for treatment of acute lung injury. Eur J Med Chem 2018; 160:120-132. [DOI: 10.1016/j.ejmech.2018.10.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/11/2018] [Accepted: 10/07/2018] [Indexed: 01/10/2023]
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Guo S, Fu Y, Xiong S, Lv J. Corilagin protects the acute lung injury by ameliorating the apoptosis pathway. Biomed Pharmacother 2017; 95:1743-1748. [PMID: 28962079 DOI: 10.1016/j.biopha.2017.09.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 09/07/2017] [Accepted: 09/10/2017] [Indexed: 02/06/2023] Open
Abstract
This study elucidates the protective effect of corilagin in acute lung injury rat model. Lung injury induced by ischemia/reperfusion (I/R) model was established by isolating the lungs from the rats. Ischemia was produced for the duration of 1h and thereafter reperfusion was done for 90min in isolated lung in presence and absence of corilagin (20 and 40mg/ml). Effect of corilagin was evaluated by estimating the pulmonary vein oxygen partial pressure (PaO2), airway compliance and tidal volume. Moreover the level of oxidative stress parameter, pro inflammatory parameters, phosphorylation of JNK and apoptosis rate was estimated in lung tissues. There was significant increase in the PaO2, airway compliance and tidal volume in corilagin treated group than I/R group. Treatment with corilagin significantly increases the activity of superoxide dismutase (SOD) and level of adenosine triphosphate (ATP) and decreases the level of MDA in the tissue homogenate of I/R induced lung injury model. Whereas expressions of proinflammatory gene such as tumor necrosis factor α, interlukin-6, IL-1β and cycloxygenase -2 (COX-2) was found to be reduced in corilagin treated group than I/R group. Posphorylation of JNK and apoptotic rate was also found to be decreased in corilagin treated group than I/R group. Present report concludes that treatment with corilagin attenuates the lung injury in ex vivo I/R induced lung injury rat model by decreasing oxidative stress, pro-inflammatory mediators and its anti apoptotic activity.
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Affiliation(s)
- Shixun Guo
- Severe Medical Section, Xinxiang Central Hospital, Xinxiang, Henan 453000, China
| | - Yun Fu
- Severe Medical Section, Xinxiang Central Hospital, Xinxiang, Henan 453000, China
| | - Shenming Xiong
- Severe Medical Section, Xinxiang Central Hospital, Xinxiang, Henan 453000, China
| | - Jiudi Lv
- Department of General Surgery, Xinxiang Central Hospital, Xinxiang, Henan 453000, China.
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Wang JJ, Wei ZK, Zhang X, Wang YN, Fu YH, Yang ZT. Butyrate protects against disruption of the blood-milk barrier and moderates inflammatory responses in a model of mastitis induced by lipopolysaccharide. Br J Pharmacol 2017; 174:3811-3822. [PMID: 28800679 DOI: 10.1111/bph.13976] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 07/25/2017] [Accepted: 07/27/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND AND PURPOSE Short-chain fatty acids are fermentation end products produced by gut bacteria, which have been shown to ameliorate inflammatory bowel diseases and allergic asthma. However, the mechanism involved remains largely unknown. Here, we investigate the protective effects and mechanisms of sodium butyrate (SB) on LPS-induced mastitis model. EXPERIMENTAL APPROACH Effects of increasing doses of SB on blood-milk barrier function and inflammation are studied in BALB/c mice with LPS-induced mastitis. The underlying mechanisms of anti-inflammatory effects of SB were further investigated in LPS-stimulated mouse mammary epithelial cells (mMECs). KEY RESULTS The results show that SB decreased LPS-induced disruption in mammary tissues, infiltration of inflammatory cells and the levels of TNF-α, IL-6 and IL-1β. SB up-regulated the tight junction proteins occludin and claudin-3 and reduced blood-milk barrier permeability in LPS-induced mastitis. Studies in vitro revealed that SB inhibited LPS-induced inflammatory response by inhibition of the NF-κB signalling pathway and histone deacetylases in LPS-stimulated mMECs. CONCLUSIONS AND IMPLICATIONS In our model, SB protected against LPS-induced mastitis by preserving blood-milk barrier function and depressing pro-inflammatory responses, suggesting the potential use of SB as a prophylactic agent to protect blood-milk barrier function in mastitis.
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Affiliation(s)
- Jing-Jing Wang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Zheng-Kai Wei
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Xu Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Ya-Nan Wang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
| | - Yun-He Fu
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China.,Department of Pathogenobiology, The Key Laboratory of Zoonosis, Chinese Ministry of Education, College of Basic Medicine, Jilin University, Changchun, Jilin Province, China
| | - Zheng-Tao Yang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, China
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Abstract
This feature examines the impact of pharmacologic interventions on the treatment of the critically ill patient — an area of health care that has become increasingly complex. Recent advances in drug therapy (including evolving and controversial data) for adult intensive-care-unit patients will be reviewed and assessed in terms of clinical, humanistic, and economic outcomes.
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Affiliation(s)
- Zachariah Thomas
- Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, New Brunswick, NJ, Clinical Pharmacist, Hackensack University Medical Center, Hackensack, NJ
| | - Katarzyna Kimborowicz
- Ernest Mario School of Pharmacy, Rutgers, the State University of New Jersey, New Brunswick, NJ, Clinical Pharmacist, Morristown Memorial Hospital, Morristown, NJ
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鲍 权, 洪 小, 唐 靖, 王 刚, 陈 曦, 秦 再. [Establishment of a modified rabbit model of acute lung injury induced by cardiopulmonary bypass]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2017; 37:797-801. [PMID: 28669955 PMCID: PMC6744139 DOI: 10.3969/j.issn.1673-4254.2017.06.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To establish an modified rabbit model of the acute lung injury induced by cardiopulmonary bypass (CPB) with ascending aorta and right atrium catheterization and detect the changes in serum tumor necrosis factor-α (TNF-α) level after modeling. METHODS Ten healthy adult male New Zealand rabbits were randomly selected to establish CPB models. The model establishment was deemed successful if the rabbits survived for over 4 h with stable heart beat after termination of CPB. The vital signs of the rabbits were recorded after anesthesia (T1), before CPB (T2), at 15 after blocking the ascending aorta and pulmonary artery (T3), immediately after re-opening of the ascending aorta and pulmonary artery (T4), and at 1 (T5) and 4 (T6) after CPB. Arterial blood gas (ABG) was monitored at T2, T4 and T6 and the serum levels of TNF-α were also detected with ELISA. RESULTS Nine rabbit models of CPB with acute lung injury were successfully established. During the operation, the MAP was maintained at a level above 55 mmHg, HCT significantly decreased from (30.18∓2.88)% at T2 to (17.73∓1.95)% at T4 (P<0.05), and plasma lactate level increased significantly from 3.65∓1.13 mmol/L at T2 to 9.36∓1.28 mmol/L at T4 (P<0.05). The oxygenation index (PaO2/FiO2) at T6 was significantly lower than that at T2 (281.64∓55.76 vs 468.36∓56.28 mmHg, P<0.05). The serum levels of TNF-α were significantly increased (P<0.05) and obvious lung interstitial edema and inflammatory cell infiltration occurred after CPB establishment. CONCLUSION The modified rabbit model of CPB with acute lung injury is stable and reliable and can be used for studying acute lung injury induced by CPB.
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Affiliation(s)
- 权 鲍
- 南方医科大学南方医院麻醉科,广东 广州 510515Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 小杨 洪
- 陆军总医院附属八一儿童医院儿童SPICU,北京 100700Affiliated Bayi Children's Hospital of General Hospital of Beijing Military Region, Beijing 100700, China
| | - 靖 唐
- 南方医科大学南方医院麻醉科,广东 广州 510515Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 刚 王
- 陆军总医院附属八一儿童医院儿童SPICU,北京 100700Affiliated Bayi Children's Hospital of General Hospital of Beijing Military Region, Beijing 100700, China
| | - 曦 陈
- 陆军总医院附属八一儿童医院儿童SPICU,北京 100700Affiliated Bayi Children's Hospital of General Hospital of Beijing Military Region, Beijing 100700, China
| | - 再生 秦
- 南方医科大学南方医院麻醉科,广东 广州 510515Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Hu Y, Tao L, Tan H, Zhang M, Shimizu K, Zhang F, Zhang C. An Active Drimane-Type Lactone from Polygonum jucundum Attenuates Lipopolysaccharide-Induced Acute Lung Injury in Mice Through TLR4-MAPKs Signaling Pathway. Inflammation 2017; 40:1204-1213. [DOI: 10.1007/s10753-017-0563-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zhao YR, Lv WR, Zhou JL. Role of carbonyl sulfide in acute lung injury following limb ischemia/reperfusion in rats. Eur J Med Res 2017; 22:12. [PMID: 28351415 PMCID: PMC5371182 DOI: 10.1186/s40001-017-0255-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 03/23/2017] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To investigate the effect of carbonyl sulfide (COS) on limb ischemia/reperfusion (I/R)-induced acute lung injury (ALI) and the associated mechanism in rats. METHODS ALI was induced by bilateral hind limb I/R in Sprague-Dawley (SD) rats. Sixty-four SD rats were randomly divided into the control group, I/R group, I/R + COS group, and I/R + AIR group. We observed the survival rate of the rats and the morphological changes of lung tissues, and we measured the change in the lung coefficient, the expression levels of the intercellular adhesion factor-1 (ICAM-1) protein in lung tissue, the expression of tumor necrosis factor (TNF)-α, interleukin (IL)-lβ, and interleukin (IL)-6 in both lung tissue and serum, and cell apoptosis. RESULTS Limb I/R caused significant lung tissue damage. The number of polymorphonuclear neutrophil in alveolar septa, the expression level of the ICAM-1 protein in lung tissue, the expression levels of TNF-α, IL-1, and IL-6 in lung tissue and serum, the lung coefficient, and cell apoptosis all increased. When a low dose of COS gas was administered prior to limb I/R, the variation of the above indicators was significantly reduced, while an increase in the dose of COS did not reduce the lung injury but rather increased the mortality rate. CONCLUSION Carbonyl sulfide is another new gaseous signaling molecule, and a low dose of exogenous COS may play a protective role in I/R-induced ALI by acting as an anti-inflammatory agent by promoting the production of antioxidants and by inhibiting the expression of adhesion molecule proteins.
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Affiliation(s)
- Yan-Rui Zhao
- Department of Orthopedics, Beijing Chao Yang Hospital, Capital Medical University, Gong Ren Ti Yu Chang Nan Rd, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Wen-Rui Lv
- Department of Orthopedics, Beijing Chao Yang Hospital, Capital Medical University, Gong Ren Ti Yu Chang Nan Rd, Chaoyang District, Beijing, 100020, People's Republic of China
| | - Jun-Lin Zhou
- Department of Orthopedics, Beijing Chao Yang Hospital, Capital Medical University, Gong Ren Ti Yu Chang Nan Rd, Chaoyang District, Beijing, 100020, People's Republic of China.
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Zhang R, Wang Z, Tejera P, Frank AJ, Wei Y, Su L, Zhu Z, Guo Y, Chen F, Bajwa EK, Thompson BT, Christiani DC. Late-onset moderate to severe acute respiratory distress syndrome is associated with shorter survival and higher mortality: a two-stage association study. Intensive Care Med 2016; 43:399-407. [PMID: 28032130 DOI: 10.1007/s00134-016-4638-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 11/23/2016] [Indexed: 01/04/2023]
Abstract
PURPOSE To evaluate the association between acute respiratory distress syndrome (ARDS) onset time and prognosis. METHODS Patients with moderate to severe ARDS (N = 876) were randomly assigned into derivation (N = 520) and validation (N = 356) datasets. Both 28-day and 60-day survival times after ARDS onset were analyzed. A data-driven cutoff point between early- and late-onset ARDS was determined on the basis of mortality risk effects of onset times. We estimated the hazard ratio (HR) and odds ratio (OR) of late-onset ARDS using a multivariate Cox proportional hazards model of survival time and a multivariate logistic regression model of mortality rate, respectively. RESULTS Late-onset ARDS, defined as onset over 48 h after intensive care unit (ICU) admission (N = 273, 31%), was associated with shorter 28-day survival time: HR = 2.24, 95% CI 1.48-3.39, P = 1.24 × 10-4 (derivation); HR = 2.16, 95% CI 1.33-3.51, P = 1.95 × 10-3 (validation); and HR = 2.00, 95% CI 1.47-2.72, P = 1.10 × 10-5 (combined dataset). Late-onset ARDS was also associated with shorter 60-day survival time: HR = 1.70, 95% CI 1.16-2.48, P = 6.62 × 10-3 (derivation); HR = 1.78, 95% CI 1.15-2.75, P = 9.80 × 10-3 (validation); and HR = 1.59, 95% CI 1.20-2.10, P = 1.22 × 10-3 (combined dataset). Meanwhile, late-onset ARDS was associated with higher 28-day mortality rate (OR = 1.46, 95% CI 1.04-2.06, P = 0.0305) and 60-day mortality rate (OR = 1.44, 95% CI 1.03-2.02, P = 0.0313). CONCLUSIONS Late-onset moderate to severe ARDS patients had both shorter survival time and higher mortality rate in 28-day and 60-day observations.
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Affiliation(s)
- Ruyang Zhang
- Department of Environmental Health, Harvard School of Public Health, Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, 665 Hunting Avenue, Building I Room 1401, Boston, MA, 02115, USA
- Department of Biostatistics, Ministry of Education Key Laboratory for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- Joint Laboratory of Health and Environmental Risk Assessment (HERA), Nanjing Medical University School of Public Health/Harvard School of Public Health, Nanjing, China
| | - Zhaoxi Wang
- Department of Environmental Health, Harvard School of Public Health, Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, 665 Hunting Avenue, Building I Room 1401, Boston, MA, 02115, USA
| | - Paula Tejera
- Department of Environmental Health, Harvard School of Public Health, Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, 665 Hunting Avenue, Building I Room 1401, Boston, MA, 02115, USA
| | - Angela J Frank
- Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Yongyue Wei
- Department of Biostatistics, Ministry of Education Key Laboratory for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- Joint Laboratory of Health and Environmental Risk Assessment (HERA), Nanjing Medical University School of Public Health/Harvard School of Public Health, Nanjing, China
| | - Li Su
- Department of Environmental Health, Harvard School of Public Health, Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, 665 Hunting Avenue, Building I Room 1401, Boston, MA, 02115, USA
| | - Zhaozhong Zhu
- Department of Environmental Health, Harvard School of Public Health, Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, 665 Hunting Avenue, Building I Room 1401, Boston, MA, 02115, USA
| | - Yichen Guo
- Department of Environmental Health, Harvard School of Public Health, Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, 665 Hunting Avenue, Building I Room 1401, Boston, MA, 02115, USA
| | - Feng Chen
- Department of Biostatistics, Ministry of Education Key Laboratory for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
- Joint Laboratory of Health and Environmental Risk Assessment (HERA), Nanjing Medical University School of Public Health/Harvard School of Public Health, Nanjing, China
| | - Ednan K Bajwa
- Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - B Taylor Thompson
- Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - David C Christiani
- Department of Environmental Health, Harvard School of Public Health, Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, 665 Hunting Avenue, Building I Room 1401, Boston, MA, 02115, USA.
- Joint Laboratory of Health and Environmental Risk Assessment (HERA), Nanjing Medical University School of Public Health/Harvard School of Public Health, Nanjing, China.
- Pulmonary and Critical Care Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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Kechagia M, Papassotiriou I, Gourgoulianis KI. Endocan and the respiratory system: a review. Int J Chron Obstruct Pulmon Dis 2016; 11:3179-3187. [PMID: 28003744 PMCID: PMC5161333 DOI: 10.2147/copd.s118692] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Endocan, formerly called endothelial cell-specific molecule 1, is an endothelial cell-associated proteoglycan that is preferentially expressed by renal and pulmonary endothelium. It is upregulated by proangiogenic molecules as well as by pro-inflammatory cytokines, and since it reflects endothelial activation and dysfunction, it is regarded as a novel tissue and blood-based relevant biomarker. As such, it is increasingly being researched and evaluated in a wide spectrum of healthy and disease pathophysiological processes. Here, we review the present scientific knowledge on endocan, with emphasis on the evidence that underlines its possible clinical value as a prognostic marker in several malignant, inflammatory and obstructive disorders of the respiratory system.
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Affiliation(s)
- Maria Kechagia
- Respiratory Medicine Department, University of Thessaly Medical School, Larissa
- Department of Clinical Biochemistry, Aghia Sophia Children’s Hospital, Athens, Greece
| | - Ioannis Papassotiriou
- Department of Clinical Biochemistry, Aghia Sophia Children’s Hospital, Athens, Greece
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Zhao YR, Wang D, Liu Y, Shan L, Zhou JL. The PI3K/Akt, p38MAPK, and JAK2/STAT3 signaling pathways mediate the protection of SO2 against acute lung injury induced by limb ischemia/reperfusion in rats. J Physiol Sci 2016; 66:229-39. [PMID: 26541157 PMCID: PMC10716937 DOI: 10.1007/s12576-015-0418-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 10/07/2015] [Indexed: 01/14/2023]
Abstract
Sulfur dioxide (SO2) is naturally synthesized by glutamate-oxaloacetate transaminase (GOT) from L-cysteine in mammalian cells. We found that SO2 may have a protective effect on acute lung injury (ALI) induced by limb ischemia/reperfusion (I/R) in rats. The PI3K/Akt, p38MAPK, and JAK2/STAT3 pathways are crucial in cell signaling transduction. The present study aims to verify the role of SO2 on limb I/R-induced ALI, and investigate whether PI3K/Akt, p38MAPK, and JAK2/STAT3 pathways were involved, as well as the relationship among the three pathways; we used specific inhibitors (LY294002, SB03580, and Stattic) to block them, respectively. The experimental methods of Western, ELISA, TUNEL, etc., were used to test the results. In the I/R group, the parameters of lung injury (MDA, MPO, TUNEL, cytokines) increased significantly, but the administration of Na2SO3/NaHSO3 attenuated the damage in the lung. The Western results showed that the rat's lung exist expression of P-STAT3, P-AKT, and P-p38 proteins. After I/R, P-STAT3, P-Akt, and P-p38 proteins expression all increased. After using Na2SO3/NaHSO3, P-Akt, and P-p38 proteins expression increased, but P-STAT3 protein expression decreased. We also found a strange phenomenon; compared to the I/R + SO2 group, the administration of stattic, P-p38 protein expression showed no change, but P-Akt protein expression increased (p < 0.05). In conclusion, SO2 has a protective effect on rats with limb I/R-induced ALI. The JAK2/STAT3, PI3K/Akt, and p38MAPK pathways are likely all involved in the process, and the JAK2/STAT3 pathway may have an impact on the P13K/Akt pathway.
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Affiliation(s)
- Yan-Rui Zhao
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Gong Ren Ti Yu Chang Nan Rd, Chaoyang District, Beijing, People's Republic of China
| | - Dong Wang
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Gong Ren Ti Yu Chang Nan Rd, Chaoyang District, Beijing, People's Republic of China
| | - Yang Liu
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Gong Ren Ti Yu Chang Nan Rd, Chaoyang District, Beijing, People's Republic of China
| | - Lei Shan
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Gong Ren Ti Yu Chang Nan Rd, Chaoyang District, Beijing, People's Republic of China
| | - Jun-Lin Zhou
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Gong Ren Ti Yu Chang Nan Rd, Chaoyang District, Beijing, People's Republic of China.
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Kandasamy P, Numata M, Berry KZ, Fickes R, Leslie CC, Murphy RC, Voelker DR. Structural analogs of pulmonary surfactant phosphatidylglycerol inhibit toll-like receptor 2 and 4 signaling. J Lipid Res 2016; 57:993-1005. [PMID: 27095543 DOI: 10.1194/jlr.m065201] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Indexed: 12/21/2022] Open
Abstract
The pulmonary surfactant phospholipid, 1-palmitoyl-2-oleoylphosphatidylglycerol (POPG), potently inhibits toll-like receptor (TLR)2 and TLR4 signaling from the cell surface of macrophages. Analogs of POPG that vary in polar head group length, hydroxylation, and alkyl branching were synthesized using a phospholipase D-catalyzed transphosphatidylation reaction and a 1-palmitoyl-2-oleoyl phosphatidylcholine substrate. Lipid analogs with C3 and C4 alkyl head group length (POP-propanol and POP-butanol) are less effective than POPG as TLR2 and TLR4 antagonists. However, adding a hydroxyl group at the alkyl chain 3- or 4-position (POP-propanediols or POP-butanediols) greatly increased their inhibitory effects against TLR2 and TLR4. POP-2',2'-dimethylpropanediol is a weak inhibitor of TLR2 and TLR4 activation that results in arachidonic acid release, but an effective inhibitor of TLR4 activation that results in TNF-α production. Addition of an amino group at the alkyl-2 position (POP-2'-aminopropanediol) completely abolished the antagonism of TLRs 2 and 4. Multiple analogs strongly bind to the TLR4 coreceptors, cluster of differentiation 14 (CD14) and myeloid differentiation 2, but competition for di[3-deoxy-D-manno-octulosonyl]-lipid A binding to CD14 is the best predictor of biological activity at the cellular level. Collectively, these findings identify new compounds for antagonizing TLR2 and TLR4 activation and define structural properties of POPG analogs for discriminating between two TLR systems.
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Affiliation(s)
- Pitchaimani Kandasamy
- Departments of Medicine, Basic Science Section, National Jewish Health, Denver, CO 80206
| | - Mari Numata
- Departments of Medicine, Basic Science Section, National Jewish Health, Denver, CO 80206
| | | | - Rachel Fickes
- Departments of Medicine, Basic Science Section, National Jewish Health, Denver, CO 80206
| | | | - Robert C Murphy
- Department of Pharmacology, University of Colorado, Aurora, CO 80045
| | - Dennis R Voelker
- Departments of Medicine, Basic Science Section, National Jewish Health, Denver, CO 80206
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Wang J, Guo C, Wei Z, He X, Kou J, Zhou E, Yang Z, Fu Y. Morin suppresses inflammatory cytokine expression by downregulation of nuclear factor-κB and mitogen-activated protein kinase (MAPK) signaling pathways in lipopolysaccharide-stimulated primary bovine mammary epithelial cells. J Dairy Sci 2016; 99:3016-3022. [DOI: 10.3168/jds.2015-10330] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 12/21/2015] [Indexed: 01/30/2023]
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Jeon CM, Shin IS, Shin NR, Hong JM, Kwon OK, Kim JH, Oh SR, Bach TT, Hai DV, Quang BH, Choi SH, Lee J, Myung PK, Ahn KS. Clausena anisata-mediated protection against lipopolysaccharide-induced acute lung injury in mice. Int J Mol Med 2016; 37:1091-8. [PMID: 26952971 DOI: 10.3892/ijmm.2016.2515] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 02/26/2016] [Indexed: 11/05/2022] Open
Abstract
Clausena anisata (Willd.) Hook.f. ex Benth. (CA), which is widely used in traditional medicine, reportedly exerts antitumor, anti-inflammatory and other important therapeutic effects. The aim of the present study was to investigate the potential therapeutic effects of CA in a mouse model of lipopolysaccharide (LPS)-induced acute lung injury (ALI) and in LPS-stimulated RAW 264.7 cells. Male C57BL/6 mice were administered treatments for 3 days by oral gavage. On day 3, the mice were instilled intranasally with LPS or PBS followed 3 h later by oral CA (30 mg/kg) or vehicle administration. In vitro, CA decreased nitric oxide (NO) production and pro-inflammatory cytokines, such as interleukin (IL)-6 and prostaglandin E2 (PGE2), in LPS-stimulated RAW 264.7 cells. CA also reduced the expression of pro-inflammatory mediators, such as cyclooxygenase-2. In vivo, CA administration significantly reduced inflammatory cell numbers in the bronchoalveolar lavage fluid (BALF) and suppressed pro-inflammatory cytokine levels, including tumor necrosis factor-α (TNF-α), IL-6, and IL-1β, as well as reactive oxygen species production in the BALF. CA also effectively reduced airway inflammation in mouse lung tissue of an LPS-induced ALI mouse model, in addition to decreasing inhibitor κB (IκB) and nuclear factor-κB (NF-κB) p65 phosphorylation. Taken together, the findings demonstrated that CA inhibited inflammatory responses in a mouse model of LPS-induced ALI and in LPS-stimulated RAW 264.7 cells. Thus, CA is a potential candidate for development as an adjunctive treatment for inflammatory disorders, such as ALI.
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Affiliation(s)
- Chan-Mi Jeon
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongwon‑gu, Cheongju‑si, Chungcheongbuk‑do 28116, Republic of Korea
| | - In-Sik Shin
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongwon‑gu, Cheongju‑si, Chungcheongbuk‑do 28116, Republic of Korea
| | - Na-Rae Shin
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongwon‑gu, Cheongju‑si, Chungcheongbuk‑do 28116, Republic of Korea
| | - Ju-Mi Hong
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongwon‑gu, Cheongju‑si, Chungcheongbuk‑do 28116, Republic of Korea
| | - Ok-Kyoung Kwon
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongwon‑gu, Cheongju‑si, Chungcheongbuk‑do 28116, Republic of Korea
| | - Jung-Hee Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongwon‑gu, Cheongju‑si, Chungcheongbuk‑do 28116, Republic of Korea
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongwon‑gu, Cheongju‑si, Chungcheongbuk‑do 28116, Republic of Korea
| | - Tran-The Bach
- IEBR, Vietnam Academy of Science and Technology (VAST), Cay Giay, Ha Noi, Vietnam
| | - Do-Van Hai
- IEBR, Vietnam Academy of Science and Technology (VAST), Cay Giay, Ha Noi, Vietnam
| | - Bui-Hong Quang
- IEBR, Vietnam Academy of Science and Technology (VAST), Cay Giay, Ha Noi, Vietnam
| | - Sang-Ho Choi
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong‑gu, Daejeon 34141, Republic of Korea
| | - Joongku Lee
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong‑gu, Daejeon 34141, Republic of Korea
| | - Pyung-Keun Myung
- College of Pharmacy, Chungnam National University, Yuseong‑gu, Daejeon, Chungcheongnam‑do 34134, Republic of Korea
| | - Kyung-Seop Ahn
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongwon‑gu, Cheongju‑si, Chungcheongbuk‑do 28116, Republic of Korea
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Selenium Deficiency Facilitates Inflammation Through the Regulation of TLR4 and TLR4-Related Signaling Pathways in the Mice Uterus. Inflammation 2016; 38:1347-56. [PMID: 25577343 DOI: 10.1007/s10753-014-0106-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Selenium (Se) is an essential nutritional trace element that affects the development and function of the reproductive system. Endometritis is a reproductive obstacle disease that can seriously reduce the reproductive capacity of animal. To study the effects of dietary Se deficiency on lipopolysaccharide (LPS)-induced mice endometritis, we generated a model of LPS-induced mice endometritis. The Se content in uterine tissues was detected by fluorescence spectrophotometry. The levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, and IL-6 were measured by enzyme-linked immunosorbent assay (ELISA) and quantitative real-time polymerase chain reaction (qRT-PCR). The extent of phosphorylation of IκBα, NF-κB p65, ERK, JNK, and p38 and the expression of Toll-like receptor 4 (TLR4) were detected with Western blots. The TLR4 messenger RNA (mRNA) was analyzed with qRT-PCR. The results indicated that dietary Se intake significantly influenced Se levels in uterine tissues. The Se-deficient mice model was successfully replicated, and Se deficiency exacerbated uterine tissue histopathology; increased the expression of TNF-α, IL-1β, and IL-6; facilitated the activation of TLR4; and enhanced the phosphorylation of IκBα, p65, ERK, JNK, and p38 in LPS-induced mice endometritis. Also, the effects were inhibited by a supplement of Se. In conclusion, our studies demonstrated that Se deficiency makes mice uterus more prone to inflammation. An appropriate Se supplement could enhance the immune condition of the uterus.
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Gao XJ, Guo MY, Zhang ZC, Wang TC, Cao YG, Zhang NS. Bergenin Plays an Anti-Inflammatory Role via the Modulation of MAPK and NF-κB Signaling Pathways in a Mouse Model of LPS-Induced Mastitis. Inflammation 2016; 38:1142-50. [PMID: 25487780 DOI: 10.1007/s10753-014-0079-8] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Mastitis is a major disease in humans and other animals and is characterized by mammary gland inflammation. It is a major disease of the dairy industry. Bergenin is an active constituent of the plants of genus Bergenia. Research indicates that bergenin has multiple biological activities, including anti-inflammatory and immunomodulatory properties. The objective of this study was to evaluate the protective effects and mechanism of bergenin on the mammary glands during lipopolysaccharide (LPS)-induced mastitis. In this study, mice were treated with LPS to induce mammary gland mastitis as a model for the disease. Bergenin treatment was initiated after LPS stimulation for 24 h. The results indicated that bergenin attenuated inflammatory cell infiltration and decreased the concentration of NO, TNF-α, IL-1β, and IL-6, which were increased in LPS-induced mouse mastitis. Furthermore, bergenin downregulated the phosphorylation of nuclear factor-kappaB (NF-κB) and mitogen-activated protein kinases (MAPK) signaling pathway proteins in mammary glands with mastitis. In conclusion, bergenin reduced the expression of NO, TNF-α, IL-1β, and IL-6 proinflammatory cytokines by inhibiting the activation of the NF-κB and MAPKs signaling pathways, and it may represent a novel treatment strategy for mastitis.
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Affiliation(s)
- Xue-jiao Gao
- College of Veterinary Medicine, Jilin University, Changchun, Jilin Province, 130062, People's Republic of China
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Lin J, Cheng Y, Wang T, Tang L, Sun Y, Lu X, Yu H. Soyasaponin Ab inhibits lipopolysaccharide-induced acute lung injury in mice. Int Immunopharmacol 2016; 30:121-128. [PMID: 26672918 DOI: 10.1016/j.intimp.2015.12.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 11/04/2015] [Accepted: 12/01/2015] [Indexed: 11/23/2022]
Abstract
Soyasaponin Ab (SA) has been reported to have anti-inflammatory effect. However, the effects of SA on lipopolysaccharide (LPS)-induced acute lung injury (ALI) have not been reported. The aim of this study was to investigate the anti-inflammatory effects of SA on LPS-induced ALI and clarify the possible mechanism. The mice were stimulated with LPS to induce ALI. SA was given 1h after LPS treatment. 12h later, lung tissues were collected to assess pathological changes and edema. Bronchoalveolar lavage fluid (BALF) was collected to assess inflammatory cytokines and nitric oxide (NO) production. In vitro, mice alveolar macrophages were used to investigate the anti-inflammatory mechanism of SA. Our results showed that SA attenuated LPS-induced lung pathological changes, edema, the expression of cycloxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) in lung tissues, as well as TNF-α, IL-6, IL-1β, and NO production in mice. Meanwhile, SA up-regulated the activities of superoxide dismutase (SOD) and catalase decreased by LPS in mice. SA also inhibited LPS-induced TNF-α, IL-6 and IL-1β production as well as NF-κB activation in alveolar macrophages. Furthermore, SA could activate Liver X Receptor Alpha (LXRα) and knockdown of LXRα by RNAi abrogated the anti-inflammatory effects of SA. In conclusion, the current study demonstrated that SA exhibited protective effects against LPS-induced acute lung injury and the possible mechanism was involved in activating LXRα, thereby inhibiting LPS-induced inflammatory response.
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Affiliation(s)
- Jing Lin
- Chinese Medicine Department of The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Yanwen Cheng
- Pharmaceutical Department of The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Tao Wang
- Basic Medical College of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, China
| | - Lihua Tang
- Medical Record Quality Department of The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Yan Sun
- Chinese Medicine Department of The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Xiuyun Lu
- Chinese Medicine Department of The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China
| | - Huimin Yu
- Chinese Medicine Department of The 2nd Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, China.
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Fu J, Wang Y, Zhang J, Wu W, Chen X, Yang Y. Anti-inflammatory and anti-apoptotic effects of oxysophoridine on lipopolysaccharide-induced acute lung injury in mice. Am J Transl Res 2015; 7:2672-2682. [PMID: 26885265 PMCID: PMC4731665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 11/28/2015] [Indexed: 06/05/2023]
Abstract
Oxysophoridine (OSR) is an alkaloid with multiple pharmacological activities. This study aimed to investigate the protective effects and underlying mechanisms of OSR on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice. Here, we found that OSR treatment markedly mitigated LPS-induced body weight loss and significant lung injury characterized by the deterioration of histopathology, histologic scores, wet-to-dry ratio, exduate volume, and protein leakage. OSR dramatically attenuated LPS-induced lung inflammation, as evidenced by the reduced levels of total cells, neutrophils, lymphocytes, and macrophages and pro-inflammatory cytokines (i.e., tumor necrosis factor-α, interleukin (IL)-1β, IL-6, and monocyte chemoattractant protein-1) in bronchoalveolar lavage fluid and of their mRNA expression in lung tissues. OSR also inhibited LPS-induced expression and activation of nuclear factor-κB p65 in pulmonary tissue. Additionally, OSR administration markedly prevented LPS-induced pulmonary cell apoptosis in mice, as reflected by the decrease in expression of procaspase-8, procaspase-3, cleaved caspase-8, and cleaved caspase-3, and Bcl-2-associated X/B-cell lymphoma 2 ratio. These results indicate that OSR is a potential therapeutic drug for treating LPS-induced ALI.
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Affiliation(s)
- Junjing Fu
- Department of Intensive Care Unit, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui, Henan 453100, PR China
| | - Yongtao Wang
- Department of Intensive Care Unit, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui, Henan 453100, PR China
| | - Jianxin Zhang
- Department of Emergency Medicine, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui, Henan 453100, PR China
| | - Wei Wu
- Department of Emergency Medicine, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui, Henan 453100, PR China
| | - Xiyan Chen
- Department of Emergency Medicine, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui, Henan 453100, PR China
| | - Yanrong Yang
- Department of Respiratory Medicine, The First Affiliated Hospital of Xinxiang Medical UniversityWeihui, Henan 453100, PR China
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37
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Su Z, Liao J, Liu Y, Liang Y, Chen H, Chen X, Lai X, Feng X, Wu D, Zheng Y, Zhang X, Li Y. Protective effects of patchouli alcohol isolated from Pogostemon cablin on lipopolysaccharide-induced acute lung injury in mice. Exp Ther Med 2015; 11:674-682. [PMID: 26893665 DOI: 10.3892/etm.2015.2918] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 10/22/2015] [Indexed: 01/11/2023] Open
Abstract
Patchouli alcohol (PA) is a tricyclic sesquiterpene isolated from Pogostemon cablin, which exerts anti-inflammatory, anti-influenza and cognitive-enhancing bioactivities. The present study aimed to investigate the protective effects of PA on acute lung injury (ALI) induced by intratracheal instillation of lipopolysaccharide (LPS) in mice. Dexamethasone was used as a positive drug for protection against LPS-induced ALI. The results of the present study demonstrated that pretreatment with PA significantly increased survival rate, attenuated histopathologic damage and lung edema, and decreased the protein content in the bronchoalveolar lavage fluid (BALF) of mice with ALI. Furthermore, PA significantly inhibited the expression levels of proinflammatory cytokines, including tumor necrosis factor (TNF)-α and interleukin (IL)-6 in the BALF, downregulated the levels of myeloperoxidase and malondialdehyde, and upregulated the activity levels of superoxide dismutase and glutathione peroxidase in lung tissue. These results indicated that PA may exert potent protective effects against LPS-induced ALI in mice, the mechanisms of which are possibly associated with the anti-inflammatory and antioxidative activities of PA.
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Affiliation(s)
- Zuqing Su
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China; Guangdong Provincal Hospital of Chinese Medicine, Guangzhou, Guangdong 510120, P.R. China
| | - Jinbin Liao
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China; Pharmaceutical Department, Guangdong Second Province Hospital of Traditional Chinese Medicine, Guangzhou, Guangdong 510095, P.R. China
| | - Yuhong Liu
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Yongzhuo Liang
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Haiming Chen
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Xiaoying Chen
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Xiaoping Lai
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China; Dongguan Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Dongguan, Guangdong 523808, P.R. China
| | - Xuexuan Feng
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Dianwei Wu
- Department of Pharmacy, Shantou Hospital of Traditional Chinese Medicine, Shantou, Guangdong 515031, P.R. China
| | - Yifeng Zheng
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Xiaojun Zhang
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
| | - Yucui Li
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China
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38
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Yuan SM. Postperfusion lung syndrome: Respiratory mechanics, respiratory indices and biomarkers. Ann Thorac Med 2015; 10:151-7. [PMID: 26229556 PMCID: PMC4518344 DOI: 10.4103/1817-1737.150736] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 07/02/2014] [Indexed: 11/04/2022] Open
Abstract
Postperfusion lung syndrome is rare but lethal. Secondary inflammatory response was the popularly accepted theory for the underlying etiology. Respiratory index (RI) and arterial oxygen tension/fractional inspired oxygen can be reliable indices for the diagnosis of this syndrome as X-ray appearance is always insignificant at the early stage of the onset. Evaluations of extravascular lung water content and pulmonary compliance are also helpful in the definite diagnosis. Multiorgan failure and triple acid-base disturbances that might develop secondary to postperfusion lung syndrome are responsible for the poor prognosis and increased mortality rather than postperfusion lung syndrome itself. Mechanical ventilation with low tidal volume (TV) and proper positive end-expiratory pressure can be an effective treatment strategy. Use of ulinastatin and propofol may benefit the patients through different mechanisms.
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Affiliation(s)
- Shi-Min Yuan
- Department of Cardiothoracic Surgery, The First Hospital of Putian, Teaching Hospital, Fujian Medical University, Putian, Fujian Province, People's Republic of China
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Yuan SM. Postperfusion lung syndrome: physiopathology and therapeutic options. Braz J Cardiovasc Surg 2015; 29:414-25. [PMID: 25372917 PMCID: PMC4412333 DOI: 10.5935/1678-9741.20140071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Accepted: 08/19/2014] [Indexed: 11/20/2022] Open
Abstract
Postperfusion lung syndrome is rare but can be lethal. The underlying mechanism
remains uncertain but triggering inflammatory cascades have become an accepted
etiology. A better understanding of the pathophysiology and the roles of inflammatory
mediators in the development of the syndrome is imperative in the determination of
therapeutic options and promotion of patients' prognosis and survival. Postperfusion
lung syndrome is similar to adult respiratory distress syndrome in clinical features,
diagnostic approaches and management strategies. However, the etiologies and
predisposing risk factors may differ between each other. The prognosis of the
postperfusion lung syndrome can be poorer in comparison to acute respiratory distress
syndrome due to the secondary multiple organ failure and triple acid-base imbalance.
Current management strategies are focusing on attenuating inflammatory responses and
preventing from pulmonary ischemia-reperfusion injury. Choices of cardiopulmonary
bypass circuit and apparatus, innovative cardiopulmonary bypass techniques, modified
surgical maneuvers and several pharmaceutical agents can be potential preventive
strategies for acute lung injury during cardiopulmonary bypass.
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Affiliation(s)
- Shi-Min Yuan
- Teaching Hospital, The First Hospital of Putian, Fujian Medical University, Putian, China
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40
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Fucosterol attenuates lipopolysaccharide-induced acute lung injury in mice. J Surg Res 2015; 195:515-21. [DOI: 10.1016/j.jss.2014.12.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 12/13/2014] [Accepted: 12/31/2014] [Indexed: 01/19/2023]
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Qiu J, Yu L, Zhang X, Wu Q, Wang D, Wang X, Xia C, Feng H. Asiaticoside attenuates lipopolysaccharide-induced acute lung injury via down-regulation of NF-κB signaling pathway. Int Immunopharmacol 2015; 26:181-7. [PMID: 25835778 DOI: 10.1016/j.intimp.2015.03.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 03/06/2015] [Accepted: 03/18/2015] [Indexed: 11/20/2022]
Abstract
Asiaticoside (AS), a triterpene glycoside isolated from Centella asiatica, has been shown to possess potent anti-inflammatory activity. However, the detailed molecular mechanisms of AS on lipopolysaccharide (LPS)-induced acute lung injury (ALI) model in mice are scanty. The purpose of this study was to evaluate the effect of AS on LPS-induced mouse ALI via down-regulation of NF-κB signaling pathway. We investigated the efficacy of AS on cytokine levels induced by LPS in bronchoalveolar lavage fluid (BALF) and RAW 264.7 cells. The production of cytokine (TNF-α and IL-6) was measured by enzyme-linked immunosorbent assay (ELISA). The lung wet-to-dry weight ratios were measured in LPS-challenged mice, and lung histopathologic changes observed via paraffin section were assessed. To further study the mechanism of AS protective effects on ALI, the activation of NF-κB p65 subunit and the degradation of IκBα were tested by western blot assay. We found that AS treatment at 15, 30 or 45mg/kg dose-dependently attenuated LPS-induced pulmonary inflammation by reducing inflammatory infiltration, histopathological changes, descended cytokine production, and pulmonary edema initiated by LPS. Furthermore, our results suggested that AS suppressed inflammatory responses in LPS-induced ALI through inhibition of the phosphorylation of NF-κB p65 subunit and the degradation of its inhibitor IκBα, and might be a new preventive agent of ALI in the clinical setting.
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Affiliation(s)
- Jiaming Qiu
- Key Laboratory of Animal Medicine of Heilongjiang Bayi Agricaltural University, Daqing High-tech Industrial Development Zone, Daqing, PR China; Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, PR China
| | - Lijun Yu
- Institute of Medicinal Chemistry and Pharmacology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia Autonomous Region, 028000, PR China
| | - Xingxing Zhang
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, PR China
| | - Qianchao Wu
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, PR China
| | - Di Wang
- Institute of Medicinal Chemistry and Pharmacology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia Autonomous Region, 028000, PR China
| | - Xiuzhi Wang
- Institute of Medicinal Chemistry and Pharmacology, Inner Mongolia University for Nationalities, Tongliao, Inner Mongolia Autonomous Region, 028000, PR China
| | - Cheng Xia
- Key Laboratory of Animal Medicine of Heilongjiang Bayi Agricaltural University, Daqing High-tech Industrial Development Zone, Daqing, PR China.
| | - Haihua Feng
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, PR China.
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A Standardized Traditional Chinese Medicine Preparation Named Yejuhua Capsule Ameliorates Lipopolysaccharide-Induced Acute Lung Injury in Mice via Downregulating Toll-Like Receptor 4/Nuclear Factor-κB. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:264612. [PMID: 25878714 PMCID: PMC4386677 DOI: 10.1155/2015/264612] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 02/27/2015] [Accepted: 03/02/2015] [Indexed: 01/11/2023]
Abstract
A standardized traditional Chinese medicine preparation named Yejuhua capsule (YJH) has been clinically used in treatments of various acute respiratory system diseases with high efficacy and low toxicity. In this study, we were aiming to evaluate potential effects and to elucidate underlying mechanisms of YJH against lipopolysaccharide- (LPS-) induced acute lung injury (ALI) in mice. Moreover, the chemical analysis and chromatographic fingerprint study were performed for quality evaluation and control of this drug. ALI was induced by intratracheal instillation of LPS (5 mg/kg) into the lung in mice and dexamethasone (5 mg/kg, p.o.) was used as a positive control drug. Results demonstrated that pretreatments with YJH (85, 170, and 340 mg/kg, p.o.) effectively abated LPS-induced histopathologic changes, attenuated the vascular permeability enhancement and edema, inhibited inflammatory cells migrations and protein leakages, suppressed the ability of myeloperoxidase, declined proinflammatory cytokines productions, and downregulated activations of nuclear factor-κB (NF-κB) and expressions of toll-like receptor 4 (TLR4). This study demonstrated that YJH exerted potential protective effects against LPS-induced ALI in mice and supported that YJH was a potential therapeutic drug for ALI in clinic. And its mechanisms were at least partially associated with downregulations of TLR4/NF-κB pathways.
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Wei D, Huang Z. Anti-inflammatory effects of triptolide in LPS-induced acute lung injury in mice. Inflammation 2015; 37:1307-16. [PMID: 24706025 DOI: 10.1007/s10753-014-9858-5] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Triptolide is one of the main active components of Chinese herb Tripterygium wilfordii Hook F, which has been demonstrated to have anti-inflammatory properties. The aim of this study was to investigate the effects of triptolide on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice and to clarify the possible mechanisms. Mice were administered intranasally with LPS to induce lung injury. Triptolide was administered intraperitoneally 1 h before LPS challenge. Triptolide-treated mice exhibited significantly reduced leukocyte, myeloperoxidase (MPO) activity, edema of the lung, as well as TNF-α, IL-1β, and IL-6 production in the bronchoalveolar lavage fluid compared with LPS-treated mice. Additionally, Western blot analysis showed that triptolide inhibited the phosphorylation of inhibitor-kappa B kinase-alpha (IκB-α), p65, nuclear factor kappa B (NF-κB), p38, extracellular receptor kinase (ERK), and Jun N-terminal kinase (JNK) and the expression of Toll-like receptor 4 (TLR4) caused by LPS. In conclusion, our results suggested that the promising anti-inflammatory mechanism of triptolide may be that triptolide activates peroxisome proliferation-activated receptor gamma (PPAR-γ), thereby attenuating an LPS-induced inflammatory response. Triptolide may be a promising potential therapeutic reagent for ALI treatment.
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Affiliation(s)
- Dong Wei
- College of Veterinary Medicine, Hebei North University, South Diamond Road, Gaoxin District, 075000, Zhangjiakou, People's Republic of China,
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44
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Liu SH, Lu TH, Su CC, Lay IS, Lin HY, Fang KM, Ho TJ, Chen KL, Su YC, Chiang WC, Chen YW. Lotus leaf (Nelumbo nucifera) and its active constituents prevent inflammatory responses in macrophages via JNK/NF-κB signaling pathway. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2015; 42:869-89. [PMID: 25004880 DOI: 10.1142/s0192415x14500554] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Inflammation is a serious health issue worldwide that induces many diseases, such as inflammatory bowel disease (IBD), sepsis, acute pancreatitis and lung injury. Thus, there is a great deal of interest in new methods of limiting inflammation. In this study, we investigated the leaves of Nelumbo nucifera Gaertn, an aquatic perennial plant cultivated in eastern Asia and India, in anti-inflammatory pharmacological effects in the murine macrophage cell line RAW264.7. Results showed that lipopolysaccharide (LPS) increased the protein expression of inducible nitric oxide synthase (iNOS) and COX-2, as well as the mRNA expression and level of IL-6 and TNF-α, while NNE significantly reduced these effects of LPS. LPS also induced phospho-JNK protein expression. The JNK-specific inhibitor SP600125 decreased the proteins expression of phospho-JNK, iNOS, COX-2, and the mRNAs expression and levels of IL-6 and TNF-α. Further, NNE reduced the protein expression of phospho-JNK. LPS was also found to promote the translocation of NF-κB from the cytosol to the nucleus and to decrease the expression of cytosolic IκB. NNE and SP600125 treatment recovered the LPS-induced expression of NF-κB and IκB. While phospho-ERK and phospho-p38 induced by LPS, could not be reversed by NNE. To further investigate the major components of NNE in anti-inflammatory effects, we determined the quercetin and catechin in inflammatory signals. Results showed that quercetin and catechin significantly decreased the proteins expression of iNOS, COX-2 and phospho-JNK. Besides, the mRNAs and levels of IL-6 and TNF-α also decreased by quercetin and catechin treatment in LPS-induced RAW264.7 cells. These results showed that NNE and its major components quercetin and catechin exhibit anti-inflammatory activities by inhibiting the JNK- and NF-κB-regulated pathways and could therefore be an useful anti-inflammatory agent.
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Affiliation(s)
- Shing-Hwa Liu
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
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Shen Y, Sun Z, Guo X. Citral inhibits lipopolysaccharide-induced acute lung injury by activating PPAR-γ. Eur J Pharmacol 2015; 747:45-51. [DOI: 10.1016/j.ejphar.2014.09.040] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 09/17/2014] [Accepted: 09/22/2014] [Indexed: 12/13/2022]
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Hydroxysafflor yellow A ameliorates lipopolysaccharide-induced acute lung injury in mice via modulating toll-like receptor 4 signaling pathways. Int Immunopharmacol 2014; 23:649-57. [DOI: 10.1016/j.intimp.2014.10.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 10/03/2014] [Accepted: 10/19/2014] [Indexed: 11/17/2022]
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Tang ZH, Hu JT, Lu ZC, Ji XF, Chen XF, Jiang LY, Zhang C, Jiang JS, Pang YP, Li CQ. Effect of Mild Hypothermia on the Expression of Toll-like Receptor 2 in Lung Tissues with Experimental Acute Lung Injury. Heart Lung Circ 2014; 23:1202-7. [DOI: 10.1016/j.hlc.2014.05.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 04/04/2014] [Accepted: 05/03/2014] [Indexed: 01/13/2023]
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Griet M, Zelaya H, Mateos MV, Salva S, Juarez GE, de Valdez GF, Villena J, Salvador GA, Rodriguez AV. Soluble factors from Lactobacillus reuteri CRL1098 have anti-inflammatory effects in acute lung injury induced by lipopolysaccharide in mice. PLoS One 2014; 9:e110027. [PMID: 25329163 PMCID: PMC4201513 DOI: 10.1371/journal.pone.0110027] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 09/09/2014] [Indexed: 12/12/2022] Open
Abstract
We have previously demonstrated that Lactobacillus reuteri CRL1098 soluble factors were able to reduce TNF-α production by human peripheral blood mononuclear cells. The aims of this study were to determine whether L. reuteri CRL1098 soluble factors were able to modulate in vitro the inflammatory response triggered by LPS in murine macrophages, to gain insight into the molecular mechanisms involved in the immunoregulatory effect, and to evaluate in vivo its capacity to exert anti-inflammatory actions in acute lung injury induced by LPS in mice. In vitro assays demonstrated that L. reuteri CRL1098 soluble factors significantly reduced the production of pro-inflammatory mediators (NO, COX-2, and Hsp70) and pro-inflammatory cytokines (TNF-α, and IL-6) caused by the stimulation of macrophages with LPS. NF-kB and PI3K inhibition by L. reuteri CRL1098 soluble factors contributed to these inhibitory effects. Inhibition of PI3K/Akt pathway and the diminished expression of CD14 could be involved in the immunoregulatory effect. In addition, our in vivo data proved that the LPS-induced secretion of the pro-inflammatory cytokines, inflammatory cells recruitment to the airways and inflammatory lung tissue damage were reduced in L. reuteri CRL1098 soluble factors treated mice, providing a new way to reduce excessive pulmonary inflammation.
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Affiliation(s)
- Milagros Griet
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Hortensia Zelaya
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Melina Valeria Mateos
- Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Bahía Blanca, Buenos Aires, Argentina
| | - Susana Salva
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Guillermo Esteban Juarez
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Graciela Font de Valdez
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | - Julio Villena
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
| | | | - Ana Virginia Rodriguez
- Centro de Referencia para Lactobacilos (CERELA-CONICET), San Miguel de Tucumán, Tucumán, Argentina
- * E-mail:
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Huang H, Hu G, Wang C, Xu H, Chen X, Qian A. Cepharanthine, an alkaloid from Stephania cepharantha Hayata, inhibits the inflammatory response in the RAW264.7 cell and mouse models. Inflammation 2014; 37:235-46. [PMID: 24045962 DOI: 10.1007/s10753-013-9734-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The aim of this study was to investigate the protective effects of cepharanthine (CEP) on inflammation in lipopolysaccharide (LPS)-stimulated RAW264.7 cells in vitro and a LPS-induced lung injury model in vivo. RAW264.7 cells were treated with various concentrations of CEP for 1 h followed by incubation with or without 1 μg/ml LPS for 18 h. TNF-α, IL-6, and IL-1β in the supernatants were measured by ELISA. Nuclear factor-κB (NF-κB) and mitogen-activated protein kinase pathways were analyzed by Western blot. Mice were randomly divided into control group, LPS group, CEP + LPS group, and dexamethasone + LPS group. A male BALB/c mouse model of acute lung injury was induced by LPS. Bronchoalveolar lavage fluid was collected for inflammatory cell count and cytokine assays. Histopathologic examination was performed on mice that were not subjected to bronchoalveolar lavage fluid collection. CEP dose-dependently inhibited the release of TNF-α, IL-6, and IL-1β in LPS-stimulated RAW264.7 cells. Significantly, CEP dose-dependently suppressed NF-κB activation, IκBα degradation, and phosphorylation of ERK, JNK, and p38 induced by LPS. In vivo, it was also observed that CEP attenuated lung histopathologic changes and down-regulated the level of pro-inflammatory cytokines, including TNF-α, IL-1β, and IL-6, in the mouse acute lung injury model. These results suggest that CEP potentially decreases inflammation in vitro and in vivo and might be a therapeutic agent against inflammatory diseases.
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Affiliation(s)
- Hailong Huang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, 130062, People's Republic of China
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Guo Z, Zhao C, Wang Z. Gene expression profiles analysis identifies key genes for acute lung injury in patients with sepsis. Diagn Pathol 2014; 9:176. [PMID: 25257390 PMCID: PMC4403757 DOI: 10.1186/s13000-014-0176-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 08/23/2014] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND To identify critical genes and biological pathways in acute lung injury (ALI), a comparative analysis of gene expression profiles of patients with ALI + sepsis compared with patients with sepsis alone were performed with bioinformatic tools. METHODS GSE10474 was downloaded from Gene Expression Omnibus, including a collective of 13 whole blood samples with ALI + sepsis and 21 whole blood samples with sepsis alone. After pre-treatment with robust multichip averaging (RMA) method, differential analysis was conducted using simpleaffy package based upon t-test and fold change. Hierarchical clustering was also performed using function hclust from package stats. Beisides, functional enrichment analysis was conducted using iGepros. Moreover, the gene regulatory network was constructed with information from Kyoto Encyclopedia of Genes and Genomes (KEGG) and then visualized by Cytoscape. RESULTS A total of 128 differentially expressed genes (DEGs) were identified, including 47 up- and 81 down-regulated genes. The significantly enriched functions included negative regulation of cell proliferation, regulation of response to stimulus and cellular component morphogenesis. A total of 27 DEGs were significantly enriched in 16 KEGG pathways, such as protein digestion and absorption, fatty acid metabolism, amoebiasis, etc. Furthermore, the regulatory network of these 27 DEGs was constructed, which involved several key genes, including protein tyrosine kinase 2 (PTK2), v-src avian sarcoma (SRC) and Caveolin 2 (CAV2). CONCLUSION PTK2, SRC and CAV2 may be potential markers for diagnosis and treatment of ALI. VIRTUAL SLIDES The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/5865162912987143.
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Affiliation(s)
- Zhiqiang Guo
- Department of Thoracic surgery, Putuo Hospital,Shanghai University of Traditional Chinese Medicine, No. 164 Lan Xi Road, Shanghai, 200062, China.
| | - Chuncheng Zhao
- Department of Thoracic surgery, Putuo Hospital,Shanghai University of Traditional Chinese Medicine, No. 164 Lan Xi Road, Shanghai, 200062, China.
| | - Zheng Wang
- Department of Thoracic surgery, Putuo Hospital,Shanghai University of Traditional Chinese Medicine, No. 164 Lan Xi Road, Shanghai, 200062, China.
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