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Palit S, Shrestha AK, Thapa S, L. Grimm S, Coarfa C, Theis F, Simon LM, Shivanna B. Leveraging Integrated RNA Sequencing to Decipher Adrenomedullin's Protective Mechanisms in Experimental Bronchopulmonary Dysplasia. Genes (Basel) 2024; 15:806. [PMID: 38927741 PMCID: PMC11202456 DOI: 10.3390/genes15060806] [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: 05/06/2024] [Revised: 06/12/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic lung disease commonly affecting premature infants, with limited therapeutic options and increased long-term consequences. Adrenomedullin (Adm), a proangiogenic peptide hormone, has been found to protect rodents against experimental BPD. This study aims to elucidate the molecular and cellular mechanisms through which Adm influences BPD pathogenesis using a lipopolysaccharide (LPS)-induced model of experimental BPD in mice. Bulk RNA sequencing of Adm-sufficient (wild-type or Adm+/+) and Adm-haplodeficient (Adm+/-) mice lungs, integrated with single-cell RNA sequencing data, revealed distinct gene expression patterns and cell type alterations associated with Adm deficiency and LPS exposure. Notably, computational integration with cell atlas data revealed that Adm-haplodeficient mouse lungs exhibited gene expression signatures characteristic of increased inflammation, natural killer (NK) cell frequency, and decreased endothelial cell and type II pneumocyte frequency. Furthermore, in silico human BPD patient data analysis supported our cell type frequency finding, highlighting elevated NK cells in BPD infants. These results underscore the protective role of Adm in experimental BPD and emphasize that it is a potential therapeutic target for BPD infants with an inflammatory phenotype.
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Affiliation(s)
- Subarna Palit
- TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354 Freising, Germany
| | - Amrit Kumar Shrestha
- Division of Neonatology, Department of Pediatrics, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX 77030, USA (B.S.)
| | - Shyam Thapa
- Division of Neonatology, Department of Pediatrics, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX 77030, USA (B.S.)
| | - Sandra L. Grimm
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Cristian Coarfa
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Fabian Theis
- TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354 Freising, Germany
- Institute of Computational Biology, Helmholtz Zentrum München, 85764 Neuherberg, Germany
- Department of Mathematics, Technical University of Munich, 85748 Garching, Germany
| | - Lukas M. Simon
- Therapeutic Innovation Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Binoy Shivanna
- Division of Neonatology, Department of Pediatrics, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX 77030, USA (B.S.)
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Chen C, Jin Y, Jin H, Chen S, Wang L, Ji L, Wang S, Zhang X, Sheng A, Sun Y. Adipose mesenchymal stem cells-derived exosomes attenuated hyperoxia-induced lung injury in neonatal rats via inhibiting the NF-κB signaling pathway. Pediatr Pulmonol 2024. [PMID: 38771197 DOI: 10.1002/ppul.27057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 04/02/2024] [Accepted: 05/02/2024] [Indexed: 05/22/2024]
Abstract
OBJECTIVE Bronchopulmonary dysplasia (BPD) is the most common chronic morbidity in extremely preterm infants. Mesenchymal stem cells-derived exosomes (MSC-Exos) therapies have shown prospects in animal models of BPD. Our study aimed to evaluate the effect of adipose mesenchymal stem cells-derived exosomes (AMSC-Exos) on BPD and the role of the NF-κB signaling pathway in this process. METHODS The AMSCs were extracted and AMSC-Exos were isolated by ultracentrifugation method. Newborn rats were exposed to hyperoxia (90% O2) continuously for 7 days to establish a BPD model. The rats were treated with AMSC-Exos by intratracheal administration on postnatal day 4 (P4). Pulmonary morphology, pulmonary vasculature, inflammatory factors, and NF-κB were assessed. Hyperoxia-induced primary type II alveolar epithelial cells (AECIIs) and AMSC-Exos treatment with or without a pan-NF-κB inhibitor (PDTC) were established to explore the potential mechanism. RESULTS Hyperoxia-exposed rats showed alveolar simplification with decreased radial alveolar count and increased mean linear intercept, low CD31, and vascular endothelial growth factor expression, reduced microvessel density, increased the expression of TNF-α, IL-1β, and IL-6 and decreased the expression of IL-10, and induced NF-κB phosphorylation. AMSC-Exos protected the neonatal lung from the hyperoxia-induced arrest of alveolar and vascular development, alleviated inflammation, and inhibited NF-κB phosphorylation. Hyperoxia decreased viability, increased apoptosis, enhanced inflammation, and induced NF-κB phosphorylation of AECIIs but improved by AMSC-Exos, PDTC, or AMSC-Exos+PDTC. The effect of AMSC-Exos+PDTC in AECIIs was the same as AMSC-Exos, but more notable than PDTC alone. CONCLUSION AMSC-Exos attenuated the hyperoxia-induced lung injury in neonatal rats by inhibiting the NF-κB signaling pathway partly.
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Affiliation(s)
- Cuie Chen
- Department of Pediatrics, Yiwu Maternity and Children Hospital, Jinhua, Zhejiang, China
| | - Yuxia Jin
- Department of Prenatal Diagnostic Center, Yiwu Maternity and Children Hospital, Jinhua, Zhejiang, China
| | - Hongxing Jin
- Department of Pediatrics, Yiwu Maternity and Children Hospital, Jinhua, Zhejiang, China
| | - Shujun Chen
- Department of Pediatrics, Yiwu Maternity and Children Hospital, Jinhua, Zhejiang, China
| | - Lu Wang
- Department of Prenatal Diagnostic Center, Yiwu Maternity and Children Hospital, Jinhua, Zhejiang, China
| | - Liuqing Ji
- Department of Pediatrics, Yiwu Maternity and Children Hospital, Jinhua, Zhejiang, China
| | - Shi Wang
- Department of Anesthesiology, Women's Hospital School of Medicine Zhejiang University, Hangzhou, Zhejiang, China
| | - Xixi Zhang
- Department of Pediatrics, Yuhuan People's Hospital, Taizhou, Zhejiang, China
| | - Anqun Sheng
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yuanyuan Sun
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Pediatrics, The Quzhou Affiliated Hospital of Wenzhou Medical University (Quzhou People's Hospital), Quzhou, Zhejiang, China
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Ozmen O, Milletsever A, Tasan S, Selcuk E, Savran M. The effects of cannabidiol against Methotrexate-induced lung damage. Basic Clin Pharmacol Toxicol 2024; 134:695-703. [PMID: 38388876 DOI: 10.1111/bcpt.13992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024]
Abstract
Methotrexate (MTX) is a widely used medication for various cancers, yet its use is associated with adverse effects on organs, notably the lungs. Cannabidiol (CBD), known for its antioxidant and anti-inflammatory properties, was investigated for its potential protective effects against MTX-induced lung injury. Thirty-two female Wistar Albino rats were divided into four groups: control, MTX (single 20 mg/kg intraperitoneal dose), MTX + CBD (single 20 mg/kg MTX with 0.1 ml of 5 mg/kg CBD for 7 days intraperitoneally) and CBD only (for 7 days). Lung tissues were analysed using histopathological, immunohistochemical and PCR methods after the study. Histopathological assessment of the MTX group revealed lung lesions like hyperemia, edema, inflammatory cell infiltration and epithelial cell loss. Immunohistochemical examination showed significant increases in Cas-3, tumour necrosis factor-alpha (TNF-α) and nuclear factor-kappa B (NF-κB) expressions. PCR analysis indicated elevated expressions of apoptotic peptidase activating factor 1 (Apaf 1), glucose-regulated protein 78 (GRP 78), CCAAT-enhancer-binding protein homologous protein (CHOP) and cytochrome C (Cyt C), along with reduced B-cell lymphoma-2 (BCL 2) expressions in the MTX group, though not statistically significant. Remarkably, CBD treatment reversed these findings. This study highlights CBD's potential in mitigating MTX-induced lung damage, suggesting its therapeutic promise.
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Affiliation(s)
- Ozlem Ozmen
- Faculty of Veterinary Medicine, Department of Pathology, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Adem Milletsever
- Faculty of Veterinary Medicine, Department of Pathology, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Serife Tasan
- Faculty of Veterinary Medicine, Department of Pathology, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
| | - Esma Selcuk
- Faculty of Medicine, Department of Medical Biology, Suleyman Demirel University, Isparta, Turkey
| | - Mehtap Savran
- Faculty of Medicine, Department of Medical Pharmacology, Suleyman Demirel University, Isparta, Turkey
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Zhang L, Zhuo Z, Chen L, Liu J, Huang J, Deng J, Lu W, Jiang X. Nesfatin-1 alleviates hyperoxia-induced bronchopulmonary dysplasia (BPD) via the nuclear factor-κB (NF-κB) p65 signaling pathway. J Biochem Mol Toxicol 2024; 38:e23680. [PMID: 38511245 DOI: 10.1002/jbt.23680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 01/16/2024] [Accepted: 02/23/2024] [Indexed: 03/22/2024]
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic respiratory disease in newborns, which severely influences the health of infants and lacks effective clinical treatment strategies. The pathogenesis of BPD is correlated to enhanced inflammation and activated oxidative stress (OS). The application of antioxidants and anti-inflammatory treatment could be hot spots for BPD treatment. Nesfatin-1, a peptide with a suppressive property against inflammation, was tested herein for its potential therapeutic value in BPD. Neonatal SD rats were stimulated with hyperoxia, followed by being intraperitoneally administered with 20 μg/kg/day Nesfatin-1 for 2 weeks. Decreased RAC value in lung tissues, increased wet weight/dry weight (W/D) pulmonary ratio and bronchoalveolar lavage fluid (BALF) proteins, elevated cytokine release in BALF, increased malondialdehyde (MDA) content, and declined superoxide dismutase (SOD) activity were observed in BPD rats, all of which were sharply mitigated by Nesfatin-1. Rat epithelial type II cells (AECIIs) were handled with hyperoxia, and then cultured with 1 and 10 nM Nesfatin-1. Reduced cell viability, elevated lactate dehydrogenase production, elevated cytokine secretion, elevated MDA content, and decreased SOD activity were observed in hyperoxia-handled AECIIs, all of which were markedly alleviated by Nesfatin-1. Furthermore, activated nuclear factor-κB (NF-κB) signaling observed in both BPD rats and hyperoxia-handled AECIIs were notably repressed by Nesfatin-1. Collectively, Nesfatin-1 alleviated hyperoxia-triggered BPD by repressing inflammation and OS via the NF-κB signaling pathway.
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Affiliation(s)
- Li Zhang
- Department of Anesthesiology, Luzhou People's Hospital, Luzhou, China
| | - Zhang Zhuo
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Lijuan Chen
- Department of Pharmacy, Stomatology Hospital Affiliated to Southwest Medical University, Luzhou, China
| | - Jiao Liu
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jiang Huang
- Department of Pharmacy, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Jian Deng
- Department of Pharmacy, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Wei Lu
- Department of Emergency, Luzhou People's Hospital, Luzhou, China
| | - Xian Jiang
- Department of Anesthesiology, Luzhou People's Hospital, Luzhou, China
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Ivanovski N, Wang H, Tran H, Ivanovska J, Pan J, Miraglia E, Leung S, Posiewko M, Li D, Mohammadi A, Higazy R, Nagy A, Kim P, Santyr G, Belik J, Palaniyar N, Gauda EB. L-citrulline attenuates lipopolysaccharide-induced inflammatory lung injury in neonatal rats. Pediatr Res 2023; 94:1684-1695. [PMID: 37349511 DOI: 10.1038/s41390-023-02684-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 04/28/2023] [Accepted: 05/16/2023] [Indexed: 06/24/2023]
Abstract
BACKGROUND Prenatal or postnatal lung inflammation and oxidative stress disrupt alveolo-vascular development leading to bronchopulmonary dysplasia (BPD) with and without pulmonary hypertension. L-citrulline (L-CIT), a nonessential amino acid, alleviates inflammatory and hyperoxic lung injury in preclinical models of BPD. L-CIT modulates signaling pathways mediating inflammation, oxidative stress, and mitochondrial biogenesis-processes operative in the development of BPD. We hypothesize that L-CIT will attenuate lipopolysaccharide (LPS)-induced inflammation and oxidative stress in our rat model of neonatal lung injury. METHODS Newborn rats during the saccular stage of lung development were used to investigate the effect of L-CIT on LPS-induced lung histopathology and pathways involved in inflammatory, antioxidative processes, and mitochondrial biogenesis in lungs in vivo, and in primary culture of pulmonary artery smooth muscle cells, in vitro. RESULTS L-CIT protected the newborn rat lung from LPS-induced: lung histopathology, ROS production, NFκB nuclear translocation, and upregulation of gene and protein expression of inflammatory cytokines (IL-1β, IL-8, MCP-1α, and TNF-α). L-CIT maintained mitochondrial morphology, increased protein levels of PGC-1α, NRF1, and TFAM (transcription factors involved in mitochondrial biogenesis), and induced SIRT1, SIRT3, and superoxide dismutases protein expression. CONCLUSION L-CIT may be efficacious in decreasing early lung inflammation and oxidative stress mitigating progression to BPD. IMPACT The nonessential amino acid L-citrulline (L-CIT) mitigated lipopolysaccharide (LPS)-induced lung injury in the early stage of lung development in the newborn rat. This is the first study describing the effect of L-CIT on the signaling pathways operative in bronchopulmonary dysplasia (BPD) in a preclinical inflammatory model of newborn lung injury. If our findings translate to premature infants, L-CIT could decrease inflammation, oxidative stress and preserve mitochondrial health in the lung of premature infants at risk for BPD.
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Affiliation(s)
- Nikola Ivanovski
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Physiology, University of Toronto, Toronto, ON, Canada
| | - Huanhuan Wang
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Harvard Tran
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Julijana Ivanovska
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Jingyi Pan
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Emily Miraglia
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
| | - Sharon Leung
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Melanie Posiewko
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Daniel Li
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
| | - Atefeh Mohammadi
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Randa Higazy
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Anita Nagy
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Division of Anatomical Pathology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Peter Kim
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
| | - Giles Santyr
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Jaques Belik
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Physiology, University of Toronto, Toronto, ON, Canada
- Division of Neonatology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Nades Palaniyar
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Estelle B Gauda
- Translational Medicine and Cell Biology Programs, Peter Gilgan Centre for Research and Learning, The Hospital for Sick Children, Toronto, ON, Canada.
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
- Division of Neonatology, The Hospital for Sick Children, Toronto, ON, Canada.
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6
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Dylong F, Riedel J, Amonkar GM, Peukert N, Lieckfeldt P, Sturm K, Höxter B, Tse WH, Miyake Y, Moormann M, Bode LM, Mayer S, Keijzer R, Lacher M, Ai X, Gosemann JH, Wagner R. Overactivated Epithelial NF-κB Disrupts Lung Development in Congenital Diaphragmatic Hernia. Am J Respir Cell Mol Biol 2023; 69:545-555. [PMID: 37552822 DOI: 10.1165/rcmb.2023-0138oc] [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: 04/13/2023] [Accepted: 08/08/2023] [Indexed: 08/10/2023] Open
Abstract
Abnormal lung development is the main cause of morbidity and mortality in neonates with congenital diaphragmatic hernia (CDH), a common birth defect (1:2,500) of largely unknown pathobiology. Recent studies discovered that inflammatory processes, and specifically NF-κB-associated pathways, are enriched in human and experimental CDH. However, the molecular signaling of NF-κB in abnormal CDH lung development and its potential as a therapeutic target require further investigation. Using sections and hypoplastic lung explant cultures from the nitrofen rat model of CDH and human fetal CDH lungs, we demonstrate that NF-κB and its downstream transcriptional targets are hyperactive during abnormal lung formation in CDH. NF-κB activity was especially elevated in the airway epithelium of nitrofen and human CDH lungs at different developmental stages. Fetal rat lung explants had impaired pseudoglandular airway branching after exposure to nitrofen, together with increased phosphorylation and transcriptional activity of NF-κB. Dexamethasone, the broad and clinically applicable antiinflammatory NF-κB antagonist, rescued lung branching and normalized NF-κB signaling in hypoplastic lung explants. Moreover, specific NF-κB inhibition with curcumenol similarly rescued ex vivo lung hypoplasia and restored NF-κB signaling. Last, we showed that prenatal intraperitoneal dexamethasone administration to pregnant rat dams carrying fetuses with hypoplastic lungs significantly improves lung branching and normalizes NF-κB in vivo. Our results indicate that NF-κB is aberrantly activated in human and nitrofen CDH lungs. Antiinflammatory treatment with dexamethasone and/or specific NF-κB inhibition should be investigated further as a therapeutic avenue to target lung hypoplasia in CDH.
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Affiliation(s)
- Florentine Dylong
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Jan Riedel
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Gaurang M Amonkar
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts; and
| | - Nicole Peukert
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Paula Lieckfeldt
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Katinka Sturm
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Benedikt Höxter
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Wai Hei Tse
- Department of Surgery
- Department of Pediatrics and Child Health, and
- Department of Physiology and Pathophysiology, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Yuichiro Miyake
- Department of Surgery
- Department of Pediatrics and Child Health, and
- Department of Physiology and Pathophysiology, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Maria Moormann
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Lena Marie Bode
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Steffi Mayer
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Richard Keijzer
- Department of Surgery
- Department of Pediatrics and Child Health, and
- Department of Physiology and Pathophysiology, Children's Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Martin Lacher
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Xingbin Ai
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts; and
| | | | - Richard Wagner
- Department of Pediatric Surgery, University Hospital Leipzig, Leipzig, Germany
- Division of Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts; and
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Cucinotta L, Mannino D, Casili G, Repici A, Crupi L, Paterniti I, Esposito E, Campolo M. Prolyl oligopeptidase inhibition ameliorates experimental pulmonary fibrosis both in vivo and in vitro. Respir Res 2023; 24:211. [PMID: 37626373 PMCID: PMC10463606 DOI: 10.1186/s12931-023-02519-x] [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: 05/30/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Pulmonary fibrosis is a progressive disease characterized by lung remodeling due to excessive deposition of extracellular matrix. Although the etiology remains unknown, aberrant angiogenesis and inflammation play an important role in the development of this pathology. In this context, recent scientific research has identified new molecules involved in angiogenesis and inflammation, such as the prolyl oligopeptidase (PREP), a proteolytic enzyme belonging to the serine protease family, linked to the pathology of many lung diseases such as pulmonary fibrosis. Therefore, the aim of this study was to investigate the effect of a selective inhibitor of PREP, known as KYP-2047, in an in vitro and in an in vivo model of pulmonary fibrosis. METHODS The in vitro model was performed using human alveolar A549 cells. Cells were exposed to lipopolysaccharide (LPS) 10 μg/ml and then, cells were treated with KYP-2047 at the concentrations of 1 μM, 10 μM and 50 μM. Cell viability was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT) bromide colorimetric assay, while inflammatory protein expression was assessed by western blots analysis. The in vivo model was induced in mice by intra-tracheal administration of bleomycin (1 mg/kg) and then treated intraperitoneally with KYP-2047 at doses of 1, 2.5 and 5 mg/kg once daily for 12 days and then mice were sacrificed, and lung tissues were collected for analyses. RESULTS The in vitro results demonstrated that KYP-2047 preserved cell viability, reduced inflammatory process by decreasing IL-18 and TNF-α, and modulated lipid peroxidation as well as nitrosative stress. The in vivo pulmonary fibrosis has demonstrated that KYP-2047 was able to restore histological alterations reducing lung injury. Our data demonstrated that KYP-2047 significantly reduced angiogenesis process and the fibrotic damage modulating the expression of fibrotic markers. Furthermore, KYP-2047 treatment modulated the IκBα/NF-κB pathway and reduced the expression of related pro-inflammatory enzymes and cytokines. Moreover, KYP-2047 was able to modulate the JAK2/STAT3 pathway, highly involved in pulmonary fibrosis. CONCLUSION In conclusion, this study demonstrated the involvement of PREP in the pathogenesis of pulmonary fibrosis and that its inhibition by KYP-2047 has a protective role in lung injury induced by BLM, suggesting PREP as a potential target therapy for pulmonary fibrosis. These results speculate the potential protective mechanism of KYP-2047 through the modulation of JAK2/STAT3 and NF-κB pathways.
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Affiliation(s)
- Laura Cucinotta
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 7 Viale Ferdinando Stagno D'Alcontres, 31-98166, Messina, Italy
| | - Deborah Mannino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 7 Viale Ferdinando Stagno D'Alcontres, 31-98166, Messina, Italy
| | - Giovanna Casili
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 7 Viale Ferdinando Stagno D'Alcontres, 31-98166, Messina, Italy
| | - Alberto Repici
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 7 Viale Ferdinando Stagno D'Alcontres, 31-98166, Messina, Italy
| | - Lelio Crupi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 7 Viale Ferdinando Stagno D'Alcontres, 31-98166, Messina, Italy
| | - Irene Paterniti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 7 Viale Ferdinando Stagno D'Alcontres, 31-98166, Messina, Italy
| | - Emanuela Esposito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 7 Viale Ferdinando Stagno D'Alcontres, 31-98166, Messina, Italy.
| | - Michela Campolo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 7 Viale Ferdinando Stagno D'Alcontres, 31-98166, Messina, Italy
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8
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Marega M, El-Merhie N, Gökyildirim MY, Orth V, Bellusci S, Chao CM. Stem/Progenitor Cells and Related Therapy in Bronchopulmonary Dysplasia. Int J Mol Sci 2023; 24:11229. [PMID: 37446407 DOI: 10.3390/ijms241311229] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/18/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic lung disease commonly seen in preterm infants, and is triggered by infection, mechanical ventilation, and oxygen toxicity. Among other problems, lifelong limitations in lung function and impaired psychomotor development may result. Despite major advances in understanding the disease pathologies, successful interventions are still limited to only a few drug therapies with a restricted therapeutic benefit, and which sometimes have significant side effects. As a more promising therapeutic option, mesenchymal stem cells (MSCs) have been in focus for several years due to their anti-inflammatory effects and their secretion of growth and development promoting factors. Preclinical studies provide evidence in that MSCs have the potential to contribute to the repair of lung injuries. This review provides an overview of MSCs, and other stem/progenitor cells present in the lung, their identifying characteristics, and their differentiation potential, including cytokine/growth factor involvement. Furthermore, animal studies and clinical trials using stem cells or their secretome are reviewed. To bring MSC-based therapeutic options further to clinical use, standardized protocols are needed, and upcoming side effects must be critically evaluated. To fill these gaps of knowledge, the MSCs' behavior and the effects of their secretome have to be examined in more (pre-) clinical studies, from which only few have been designed to date.
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Affiliation(s)
- Manuela Marega
- German Center for Lung Research (DZL), Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Justus Liebig University Giessen, 35392 Giessen, Germany
- Department of Pediatrics, Centre for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany
| | - Natalia El-Merhie
- Institute for Lung Health (ILH), Member of the German Center for Lung Research (DZL), Justus Liebig University Giessen, 35392 Giessen, Germany
| | - Mira Y Gökyildirim
- Department of Pediatrics, University Medical Center Rostock, University of Rostock, 18057 Rostock, Germany
| | - Valerie Orth
- Department of Pediatrics, Centre for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany
| | - Saverio Bellusci
- German Center for Lung Research (DZL), Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Justus Liebig University Giessen, 35392 Giessen, Germany
| | - Cho-Ming Chao
- German Center for Lung Research (DZL), Department of Pulmonary and Critical Care Medicine and Infectious Diseases, Cardio-Pulmonary Institute (CPI), Universities of Giessen and Marburg Lung Center (UGMLC), Justus Liebig University Giessen, 35392 Giessen, Germany
- Department of Pediatrics, Centre for Clinical and Translational Research (CCTR), Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany
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9
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Storti M, Faietti ML, Murgia X, Catozzi C, Minato I, Tatoni D, Cantarella S, Ravanetti F, Ragionieri L, Ciccimarra R, Zoboli M, Vilanova M, Sánchez-Jiménez E, Gay M, Vilaseca M, Villetti G, Pioselli B, Salomone F, Ottonello S, Montanini B, Ricci F. Time-resolved transcriptomic profiling of the developing rabbit's lungs: impact of premature birth and implications for modelling bronchopulmonary dysplasia. Respir Res 2023; 24:80. [PMID: 36922832 PMCID: PMC10015812 DOI: 10.1186/s12931-023-02380-y] [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: 12/11/2022] [Accepted: 03/03/2023] [Indexed: 03/17/2023] Open
Abstract
BACKGROUND Premature birth, perinatal inflammation, and life-saving therapies such as postnatal oxygen and mechanical ventilation are strongly associated with the development of bronchopulmonary dysplasia (BPD); these risk factors, alone or combined, cause lung inflammation and alter programmed molecular patterns of normal lung development. The current knowledge on the molecular regulation of lung development mainly derives from mechanistic studies conducted in newborn rodents exposed to postnatal hyperoxia, which have been proven useful but have some limitations. METHODS Here, we used the rabbit model of BPD as a cost-effective alternative model that mirrors human lung development and, in addition, enables investigating the impact of premature birth per se on the pathophysiology of BPD without further perinatal insults (e.g., hyperoxia, LPS-induced inflammation). First, we characterized the rabbit's normal lung development along the distinct stages (i.e., pseudoglandular, canalicular, saccular, and alveolar phases) using histological, transcriptomic and proteomic analyses. Then, the impact of premature birth was investigated, comparing the sequential transcriptomic profiles of preterm rabbits obtained at different time intervals during their first week of postnatal life with those from age-matched term pups. RESULTS Histological findings showed stage-specific morphological features of the developing rabbit's lung and validated the selected time intervals for the transcriptomic profiling. Cell cycle and embryo development, oxidative phosphorylation, and WNT signaling, among others, showed high gene expression in the pseudoglandular phase. Autophagy, epithelial morphogenesis, response to transforming growth factor β, angiogenesis, epithelium/endothelial cells development, and epithelium/endothelial cells migration pathways appeared upregulated from the 28th day of gestation (early saccular phase), which represents the starting point of the premature rabbit model. Premature birth caused a significant dysregulation of the inflammatory response. TNF-responsive, NF-κB regulated genes were significantly upregulated at premature delivery and triggered downstream inflammatory pathways such as leukocyte activation and cytokine signaling, which persisted upregulated during the first week of life. Preterm birth also dysregulated relevant pathways for normal lung development, such as blood vessel morphogenesis and epithelial-mesenchymal transition. CONCLUSION These findings establish the 28-day gestation premature rabbit as a suitable model for mechanistic and pharmacological studies in the context of BPD.
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Affiliation(s)
- Matteo Storti
- Department of Experimental Pharmacology and Translational Science, R&D, Chiesi Farmaceutici S.P.A., 43122, Parma, Italy
| | - Maria Laura Faietti
- Department of Analytic and Early Formulations, Chiesi Farmaceutici S.P.A., R&D, 43122, Parma, Italy
| | | | - Chiara Catozzi
- Department of Experimental Pharmacology and Translational Science, R&D, Chiesi Farmaceutici S.P.A., 43122, Parma, Italy
| | - Ilaria Minato
- Laboratory of Biochemistry and Molecular Biology, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy.,Interdepartmental Research Centre Biopharmanet-Tec, University of Parma, 43124, Parma, Italy
| | - Danilo Tatoni
- Laboratory of Biochemistry and Molecular Biology, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy.,Department of Medical Biotechnologies, University of Siena, 53100, Siena, Italy
| | - Simona Cantarella
- Laboratory of Biochemistry and Molecular Biology, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy.,Division of RNA Biology and Cancer, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | | | - Luisa Ragionieri
- Department of Veterinary Sciences, University of Parma, 43124, Parma, Italy
| | - Roberta Ciccimarra
- Department of Veterinary Sciences, University of Parma, 43124, Parma, Italy
| | - Matteo Zoboli
- Department of Veterinary Sciences, University of Parma, 43124, Parma, Italy
| | - Mar Vilanova
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac, 10, 08028, Barcelona, Spain
| | - Ester Sánchez-Jiménez
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac, 10, 08028, Barcelona, Spain
| | - Marina Gay
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac, 10, 08028, Barcelona, Spain
| | - Marta Vilaseca
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac, 10, 08028, Barcelona, Spain
| | - Gino Villetti
- Department of Experimental Pharmacology and Translational Science, R&D, Chiesi Farmaceutici S.P.A., 43122, Parma, Italy
| | - Barbara Pioselli
- Department of Analytic and Early Formulations, Chiesi Farmaceutici S.P.A., R&D, 43122, Parma, Italy
| | - Fabrizio Salomone
- Department of Experimental Pharmacology and Translational Science, R&D, Chiesi Farmaceutici S.P.A., 43122, Parma, Italy
| | - Simone Ottonello
- Laboratory of Biochemistry and Molecular Biology, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy.,Interdepartmental Research Centre Biopharmanet-Tec, University of Parma, 43124, Parma, Italy
| | - Barbara Montanini
- Laboratory of Biochemistry and Molecular Biology, Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124, Parma, Italy. .,Interdepartmental Research Centre Biopharmanet-Tec, University of Parma, 43124, Parma, Italy.
| | - Francesca Ricci
- Department of Experimental Pharmacology and Translational Science, R&D, Chiesi Farmaceutici S.P.A., 43122, Parma, Italy. .,Head of Neonatology and Pulmonary Rare Disease, Preclinical Pharmacology, Chiesi Farmaceutici S.P.A., 43122, Parma, Italy.
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10
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Ransom MA, Bunn KE, Negretti NM, Jetter CS, Bressman ZJ, Sucre JMS, Pua HH. Developmental trajectory of extracellular vesicle characteristics from the lungs of preterm infants. Am J Physiol Lung Cell Mol Physiol 2023; 324:L385-L392. [PMID: 36719083 PMCID: PMC10026990 DOI: 10.1152/ajplung.00389.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
Extracellular vesicles (EVs) are secreted lipid-enclosed particles that have emerged as potential biomarkers and therapeutic agents in lung disease, including bronchopulmonary dysplasia (BPD), a leading complication of preterm birth. Many unanswered questions remain about the content and cargo of EVs in premature infants and their role in lung development. To characterize EVs during human lung development, tracheal aspirates were collected from premature neonates between 22 and 35 wk gestational age and analyzed via nanoparticle tracking analysis, electron microscopy, and bead-based flow cytometry. EVs were detectable across late canalicular through saccular stages of lung development, demonstrating larger sizes earlier in gestation. EVs contained an abundance of the EV-enriched tetraspanins CD9, CD63, and CD81, as well as epithelial cell and immune cell markers. Increases in select surface proteins (CD24 and CD14) on EVs were associated with gestational age and with the risk of BPD. Finally, query of expression data obtained from epithelial cells in a single-cell atlas of murine lung development found that epithelial EV marker expression also changes with developmental time. Together, these data demonstrate an association between EV profile and lung development and provide a foundation for future functional classification of EVs, with the goal of determining their role in cell signaling during development and harnessing their potential as a new therapeutic target in BPD.
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Affiliation(s)
- Meaghan A Ransom
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Kaitlyn E Bunn
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Nicholas M Negretti
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Christopher S Jetter
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Zachary J Bressman
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Jennifer M S Sucre
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, United States
| | - Heather H Pua
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, United States
- Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, Tennessee, United States
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11
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A comprehensive review of emodin in fibrosis treatment. Fitoterapia 2023; 165:105358. [PMID: 36436587 DOI: 10.1016/j.fitote.2022.105358] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 11/27/2022]
Abstract
Emodin is the main pharmacodynamic components of rhubarb, with significant pharmacological effects and clinical efficacy.Emodin has a variety of therapy effects, such as anti-cancer, anti-fibrosis effects, and is widely used to treat encephalitis, diabetic cataract and organ fibrosis. Several studies have shown that emodin has a good treatment effect on organ fibrosis, but the mechanism is complex. Moreover, the evidence of some studies is conflicting and confusing. This paper reviewed the mechanism, pharmacokinetics and toxicology of emodin in fibrosis treatment, and briefly discussed relevant cutting-edge new formulations to improve the efficacy, the result can provide some reference for future study.
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12
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Noël A, Yilmaz S, Farrow T, Schexnayder M, Eickelberg O, Jelesijevic T. Sex-Specific Alterations of the Lung Transcriptome at Birth in Mouse Offspring Prenatally Exposed to Vanilla-Flavored E-Cigarette Aerosols and Enhanced Susceptibility to Asthma. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:3710. [PMID: 36834405 PMCID: PMC9967225 DOI: 10.3390/ijerph20043710] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/07/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Currently, approximately 8 million adult Americans use electronic cigarettes (e-cigs) daily, including women of childbearing age. It is known that more than 10% of women smoke during their pregnancy, and recent surveys show that rates of maternal vaping are similar to rates of maternal cigarette smoking. However, the effects of inhaling e-cig aerosol on the health of fetuses remain unknown. The objective of the present study was to increase our understanding of the molecular effects caused by in utero exposures to e-cig aerosols on developing mouse lungs and, later in life, on the offspring's susceptibility to developing asthma. METHODS Pregnant mice were exposed throughout gestation to either filtered air or vanilla-flavored e-cig aerosols containing 18 mg/mL of nicotine. Male and female exposed mouse offspring were sacrificed at birth, and then the lung transcriptome was evaluated. Additionally, once sub-groups of male offspring mice reached 4 weeks of age, they were challenged with house dust mites (HDMs) for 3 weeks to assess asthmatic responses. RESULTS The lung transcriptomic responses of the mouse offspring at birth showed that in utero vanilla-flavored e-cig aerosol exposure significantly regulated 88 genes in males (62 genes were up-regulated and 26 genes were down-regulated), and 65 genes were significantly regulated in females (17 genes were up-regulated and 48 genes were down-regulated). Gene network analyses revealed that in utero e-cig aerosol exposure affected canonical pathways associated with CD28 signaling in T helper cells, the role of NFAT in the regulation of immune responses, and phospholipase C signaling in males, whereas the dysregulated genes in the female offspring were associated with NRF2-mediated oxidative stress responses. Moreover, we found that in utero exposures to vanilla-flavored e-cig aerosol exacerbated HDM-induced asthma in 7-week-old male mouse offspring compared to respective in utero air + HDM controls. CONCLUSIONS Overall, these data demonstrate that in utero e-cig aerosol exposure alters the developing mouse lung transcriptome at birth in a sex-specific manner and provide evidence that the inhalation of e-cig aerosols is detrimental to the respiratory health of offspring by increasing the offspring' susceptibility to developing lung diseases later in life.
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Affiliation(s)
- Alexandra Noël
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Sultan Yilmaz
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Tori Farrow
- Department of Environmental Toxicology, Southern University and A & M College, Baton Rouge, LA 70813, USA
| | | | - Oliver Eickelberg
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Tomislav Jelesijevic
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
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13
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Spurrell CH, Barozzi I, Kosicki M, Mannion BJ, Blow MJ, Fukuda-Yuzawa Y, Slaven N, Afzal SY, Akiyama JA, Afzal V, Tran S, Plajzer-Frick I, Novak CS, Kato M, Lee EA, Garvin TH, Pham QT, Kronshage AN, Lisgo S, Bristow J, Cappola TP, Morley MP, Margulies KB, Pennacchio LA, Dickel DE, Visel A. Genome-wide fetalization of enhancer architecture in heart disease. Cell Rep 2022; 40:111400. [PMID: 36130500 PMCID: PMC9534044 DOI: 10.1016/j.celrep.2022.111400] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/10/2022] [Accepted: 09/01/2022] [Indexed: 11/22/2022] Open
Abstract
Heart disease is associated with re-expression of key transcription factors normally active only during prenatal development of the heart. However, the impact of this reactivation on the regulatory landscape in heart disease is unclear. Here, we use RNA-seq and ChIP-seq targeting a histone modification associated with active transcriptional enhancers to generate genome-wide enhancer maps from left ventricle tissue from up to 26 healthy controls, 18 individuals with idiopathic dilated cardiomyopathy (DCM), and five fetal hearts. Healthy individuals have a highly reproducible epigenomic landscape, consisting of more than 33,000 predicted heart enhancers. In contrast, we observe reproducible disease-associated changes in activity at 6,850 predicted heart enhancers. Combined analysis of adult and fetal samples reveals that the heart disease epigenome and transcriptome both acquire fetal-like characteristics, with 3,400 individual enhancers sharing fetal regulatory properties. We also provide a comprehensive data resource (http://heart.lbl.gov) for the mechanistic exploration of DCM etiology.
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Affiliation(s)
- Cailyn H Spurrell
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Iros Barozzi
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Michael Kosicki
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Brandon J Mannion
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Matthew J Blow
- U.S. Department of Energy Joint Genome Institute, Walnut Creek, CA 94598, USA
| | - Yoko Fukuda-Yuzawa
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Neil Slaven
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Sarah Y Afzal
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jennifer A Akiyama
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Veena Afzal
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Stella Tran
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Ingrid Plajzer-Frick
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Catherine S Novak
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Momoe Kato
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Elizabeth A Lee
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Tyler H Garvin
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Quan T Pham
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Anne N Kronshage
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Steven Lisgo
- Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - James Bristow
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Thomas P Cappola
- Cardiovascular Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Michael P Morley
- Cardiovascular Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Kenneth B Margulies
- Cardiovascular Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Len A Pennacchio
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; U.S. Department of Energy Joint Genome Institute, Walnut Creek, CA 94598, USA; Comparative Biochemistry Program, University of California, Berkeley, Berkeley, CA 94720, USA.
| | - Diane E Dickel
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Axel Visel
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; U.S. Department of Energy Joint Genome Institute, Walnut Creek, CA 94598, USA; School of Natural Sciences, University of California, Merced, Merced, CA 95343, USA.
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14
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Hedgehog Signaling Pathway Orchestrates Human Lung Branching Morphogenesis. Int J Mol Sci 2022; 23:ijms23095265. [PMID: 35563656 PMCID: PMC9100880 DOI: 10.3390/ijms23095265] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/03/2022] [Accepted: 05/05/2022] [Indexed: 01/05/2023] Open
Abstract
The Hedgehog (HH) signaling pathway plays an essential role in mouse lung development. We hypothesize that the HH pathway is necessary for branching during human lung development and is impaired in pulmonary hypoplasia. Single-cell, bulk RNA-sequencing data, and human fetal lung tissues were analyzed to determine the spatiotemporal localization of HH pathway actors. Distal human lung segments were cultured in an air-liquid interface and treated with an SHH inhibitor (5E1) to determine the effect of HH inhibition on human lung branching, epithelial-mesenchymal markers, and associated signaling pathways in vitro. Our results showed an early and regulated expression of HH pathway components during human lung development. Inhibiting HH signaling caused a reduction in branching during development and dysregulated epithelial (SOX2, SOX9) and mesenchymal (ACTA2) progenitor markers. FGF and Wnt pathways were also disrupted upon HH inhibition. Finally, we demonstrated that HH signaling elements were downregulated in lung tissues of patients with a congenital diaphragmatic hernia (CDH). In this study, we show for the first time that HH signaling inhibition alters important genes and proteins required for proper branching of the human developing lung. Understanding the role of the HH pathway on human lung development could lead to the identification of novel therapeutic targets for childhood pulmonary diseases.
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15
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Romero-Estrada A, Boto A, González-Christen J, Romero-Estudillo I, Garduño-Ramírez ML, Razo-Hernández RS, Marquina S, Maldonado-Magaña A, Columba-Palomares MC, Sánchez-Carranza JN, Alvarez L. Synthesis, Biological Evaluation, and Molecular Docking Study of 3-Amino and 3-Hydroxy- seco A Derivatives of α-Amyrin and 3-Epilupeol as Inhibitors of COX-2 Activity and NF-kB Activation. JOURNAL OF NATURAL PRODUCTS 2022; 85:787-803. [PMID: 35175765 DOI: 10.1021/acs.jnatprod.1c00827] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In this study, a series of novel 3-seco-A derivatives of the natural triterpenes α-amyrin (1) and 3-epilupeol (2) were synthesized by a one-pot radical scission-oxidation procedure and evaluated in vitro and in vivo for their capacity to inhibit the inflammatory process. For the in vitro studies, the trans-4-hydroxy-l-proline methyl ester derivatives (1f and 2f) were consistently effective in inhibiting NO, IL-6, and TNF-α secretion, as well as inhibition of NF-κB activation, in RAW cells stimulated by LPS. The further in vivo anti-inflammatory study revealed that the trans-4-hydroxy-l-proline methyl ester derivatives (1f and 2f), together with 1g, were the most effective in inhibiting TPA-induced edema. Interestingly, the α-amyrin derivatives were the most potent inhibitors of COX-2, but inhibited COX-1 only to some extent. The hydroxyl derivative (1c) was selective for COX-2 inhibition (66.3 ± 1.1% at 17.5 μM) without affecting the COX-1 isoform and did not present toxicity. Molecular docking studies revealed that these compounds bind with their polar region in the cavity over Arg-120, and their lipophilic part is orientated to the HEM cofactor similarly to the natural substrate arachidonic acid in the catalytic site of COX-2. These results indicated that seco-A ursane derivatives could be considered promising candidates for the future development of selective NF-κB and COX-2 inhibitors.
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Affiliation(s)
- Antonio Romero-Estrada
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca 62209, Morelos, México
- Departamento de Madera, Celulosa y Papel, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Km 15.5 Carretera Guadalajara-Nogales, Col. Las Agujas, Zapopan 45100, Jalisco, México
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología del CSIC, Avenuda Astrofísico Francisco Sánchez 3, 38206-La Laguna, Tenerife, Spain
| | - Judith González-Christen
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca 62209 Morelos, México
| | - Ivan Romero-Estudillo
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca 62209, Morelos, México
- CONACYT-Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca 62209 Morelos, México
| | - María Luisa Garduño-Ramírez
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca 62209, Morelos, México
| | - Rodrigo Said Razo-Hernández
- Centro de Investigación en Dinámica Celular-IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca 62209, Morelos, México
| | - Silvia Marquina
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca 62209, Morelos, México
| | - Amalia Maldonado-Magaña
- Instituto Tecnológico de Milpa Alta. Independencia Sur No. 36, Col. San Salvador Cuauhténco, Alcaldía Milpa Alta CDMX 12300, México
| | - María C Columba-Palomares
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca 62209 Morelos, México
| | - Jessica Nayelli Sánchez-Carranza
- Facultad de Farmacia, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca 62209 Morelos, México
| | - Laura Alvarez
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos, Avenida Universidad 1001, Col. Chamilpa, Cuernavaca 62209, Morelos, México
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16
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Anti-Inflammatory and Immunoregulatory Action of Sesquiterpene Lactones. Molecules 2022; 27:molecules27031142. [PMID: 35164406 PMCID: PMC8839508 DOI: 10.3390/molecules27031142] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/01/2022] [Accepted: 02/06/2022] [Indexed: 01/21/2023] Open
Abstract
Sesquiterpene lactones (SL), characterized by their high prevalence in the Asteraceae family, are one of the major groups of secondary metabolites found in plants. Researchers from distinct research fields, including pharmacology, medicine, and agriculture, are interested in their biological potential. With new SL discovered in the last years, new biological activities have been tested, different action mechanisms (synergistic and/or antagonistic effects), as well as molecular structure–activity relationships described. The review identifies the main sesquiterpene lactones with interconnections between immune responses and anti-inflammatory actions, within different cellular models as well in in vivo studies. Bioaccessibility and bioavailability, as well as molecular structure–activity relationships are addressed. Additionally, plant metabolic engineering, and the impact of sesquiterpene lactone extraction methodologies are presented, with the perspective of biological activity enhancement. Sesquiterpene lactones derivatives are also addressed. This review summarizes the current knowledge regarding the therapeutic potential of sesquiterpene lactones within immune and inflammatory activities, highlighting trends and opportunities for their pharmaceutical/clinical use.
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17
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El-Bassouny DR, Omar NM, Khalaf HA, Al-Salam RAA. Role of nuclear factor-kappa B in bleomycin induced pulmonary fibrosis and the probable alleviating role of ginsenoside: histological, immunohistochemical, and biochemical study. Anat Cell Biol 2021; 54:448-464. [PMID: 34936986 PMCID: PMC8693141 DOI: 10.5115/acb.21.068] [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: 04/07/2021] [Revised: 06/17/2021] [Accepted: 08/09/2021] [Indexed: 01/04/2023] Open
Abstract
Bleomycin (BLM) is one of anti-cancerous drugs. One of its limitation is the development of pulmonary fibrosis during therapy So, we proposed to examine the outcome of BLM take on the light and electron microscopic design of rat lung. Along with, assessment the probable protecting role of ginsenoside on BLM induced pulmonary changes. In this study, thirty adult male albino rats were comprised and were classified to four clusters; Negative & positive control group, BLM treated group and BLM& ginsenoside treated group. The lung was treated for histological and immunohistochemical (anti-p65) studies. Light microscopic examination of H&E stained sections of BLM treated group showed huge distortion of the lung building. Mallory trichrome stain of this group showed evident deposition of collagen fibers in the markedly thickened interalveolar septa and around intrapulmonary bronchi, bronchioles and blood vessels. Moreover, strong positive staining for nuclear factor (NF)-κB in the wall of bronchiole as well as the thickened interalveolar septa were observed. Ultrastructural inspection of lung of this group revealed muddled lung planning. Marked improvement of the lung structure and marked reduction in NF-κB immunoexpression was appeared in BLM and ginsenoside treated group. So, we concluded that co-administration of ginsenoside with BLM significantly enhanced the histological and morphometric image of the lung.
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Affiliation(s)
- Dalia Refaat El-Bassouny
- Medical Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, El Mansoura, Egypt
| | - Nesreen Mostafa Omar
- Medical Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, El Mansoura, Egypt
| | - Hanaa Attia Khalaf
- Medical Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, El Mansoura, Egypt
| | - Reem Ahmad Abd Al-Salam
- Medical Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, El Mansoura, Egypt
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18
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Sklenarova R, Svrckova M, Hodek P, Ulrichova J, Frankova J. Effect of the natural flavonoids myricetin and dihydromyricetin on the wound healing process in vitro. J Appl Biomed 2021; 19:149-158. [PMID: 34907758 DOI: 10.32725/jab.2021.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 07/20/2021] [Indexed: 11/05/2022] Open
Abstract
Myricetin (MYR) and dihydromyricetin (DHM) are classified as natural flavonoids. Both substances are known for their anti-inflammatory and antioxidant properties. In this study, an in vitro model of inflammation was demonstrated on monolayers of scratched fibroblasts or keratinocytes exposed to LPS from Pseudomonas aeruginosa for six hours. MYR and DHM were subsequently applied to the cells for 24 hours at sub toxic concentrations (5-15 µM). Inflammatory parameters were analysed in collected cell medium and lysate after the incubation period using the Enzyme-Linked ImmuneSorbent Assay (ELISA) and Western blot. Both flavonoids inhibit the production of pro-inflammatory cytokines (IL-6, IL-8) in LPS-stimulated skin cells as well as the decreased level of MMP-1 in fibroblasts. However, the application of MYR and DHM dose dependently increased the level of MMP-1 in keratinocytes. In our experiments, we focused on the anti-glycation activity of MYR and DHM, where the higher concentration of MYR seems to be more effective.
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Affiliation(s)
- Renata Sklenarova
- Palacky University Olomouc, Faculty of Medicine and Dentistry, Department of Medical Chemistry and Biochemistry, Olomouc, Czech Republic
| | - Marika Svrckova
- Palacky University Olomouc, Faculty of Medicine and Dentistry, Department of Medical Chemistry and Biochemistry, Olomouc, Czech Republic
| | - Petr Hodek
- Charles University, Faculty of Science, Department of Biochemistry, Prague 2, Czech Republic
| | - Jitka Ulrichova
- Palacky University Olomouc, Faculty of Medicine and Dentistry, Department of Medical Chemistry and Biochemistry, Olomouc, Czech Republic
| | - Jana Frankova
- Palacky University Olomouc, Faculty of Medicine and Dentistry, Department of Medical Chemistry and Biochemistry, Olomouc, Czech Republic
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19
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Mousa M, Vurivi H, Kannout H, Uddin M, Alkaabi N, Mahboub B, Tay GK, Alsafar HS. Genome-wide association study of hospitalized COVID-19 patients in the United Arab Emirates. EBioMedicine 2021; 74:103695. [PMID: 34775353 PMCID: PMC8587122 DOI: 10.1016/j.ebiom.2021.103695] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The heterogeneity in symptomatology and phenotypic profile attributable to COVID-19 is widely unknown. The objective of this manuscript is to conduct a trans-ancestry genome wide association study (GWAS) meta-analysis of COVID-19 severity to improve the understanding of potentially causal targets for SARS-CoV-2. METHODS This cross-sectional study recruited 646 participants in the UAE that were divided into two phenotypic groups based on the severity of COVID-19 phenotypes, hospitalized (n=482) and non-hospitalized (n=164) participants. Hospitalized participants were COVID-19 patients that developed acute respiratory distress syndrome (ARDS), pneumonia or progression to respiratory failure that required supplemental oxygen therapy or mechanical ventilation support or had severe complications such as septic shock or multi-organ failure. We conducted a trans-ancestry meta-analysis GWAS of European (n=302), American (n=102), South Asian (n=99), and East Asian (n=107) ancestry populations. We also carried out comprehensive post-GWAS analysis, including enrichment of SNP associations in tissues and cell-types, expression quantitative trait loci and differential expression analysis. FINDINGS Eight genes demonstrated a strong association signal: VWA8 gene in locus 13p14·11 (SNP rs10507497; p=9·54 x10-7), PDE8B gene in locus 5q13·3 (SNP rs7715119; p=2·19 x10-6), CTSC gene in locus 11q14·2 (rs72953026; p=2·38 x10-6), THSD7B gene in locus 2q22·1 (rs7605851; p=3·07x10-6), STK39 gene in locus 2q24·3 (rs7595310; p=4·55 x10-6), FBXO34 gene in locus 14q22·3 (rs10140801; p=8·26 x10-6), RPL6P27 gene in locus 18p11·31 (rs11659676; p=8·88 x10-6), and METTL21C gene in locus 13q33·1 (rs599976; p=8·95 x10-6). The genes are expressed in the lung, associated to tumour progression, emphysema, airway obstruction, and surface tension within the lung, as well as an association to T-cell-mediated inflammation and the production of inflammatory cytokines. INTERPRETATION We have discovered eight highly plausible genetic association with hospitalized cases in COVID-19. Further studies must be conducted on worldwide population genetics to facilitate the development of population specific therapeutics to mitigate this worldwide challenge. FUNDING This review was commissioned as part of a project to study the host cell receptors of coronaviruses funded by Khalifa University's CPRA grant (Reference number 2020-004).
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Affiliation(s)
- Mira Mousa
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Nuffield Department of Women's and Reproduction Health, Oxford University, Oxford, United Kingdom
| | - Hema Vurivi
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Hussein Kannout
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Maimunah Uddin
- Department of Pediatric Infectious Disease, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
| | - Nawal Alkaabi
- Department of Pediatric Infectious Disease, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates
| | - Bassam Mahboub
- Dubai Health Authority, Rashid Hospital, Dubai, United Arab Emirates
| | - Guan K Tay
- Division of Psychiatry, Faculty of Health and Medical Sciences, the University of Western Australia, Crawley, Western Australia, Australia; School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Habiba S Alsafar
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Department of Biomedical Engineering, College of Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates; Department of Genetics and Molecular Biology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates.
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20
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Joung EJ, Cao L, Lee B, Gwon WG, Park SH, Kim HR. Sargahydroquinoic Acid, a Cyclooxygenase-2 Inhibitor, Attenuates Inflammatory Responses by Regulating NF-κB Inactivation and Nrf2 Activation in Lipopolysaccharide-Stimulated Cells. Inflammation 2021; 44:2120-2131. [PMID: 34050497 DOI: 10.1007/s10753-021-01488-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 04/12/2021] [Accepted: 05/24/2021] [Indexed: 12/20/2022]
Abstract
Sargahydroquinoic acid (SHQA) is a major plastoquinone in Sargassum macrocarpum and has shown the capacity to prevent inflammation and oxidative stress. However, the protective mechanisms were unclear. The molecular mechanisms of SHQA on ameliorating inflammation and oxidative stress have been investigated, using lipopolysaccharide (LPS)-stimulated macrophages. SHQA was isolated and purified from S. macrocarpum and the anti-inflammatory mechanisms were explored using LPS-stimulated murine macrophage RAW 264.7 cells. SHQA did not change the expression of cyclooxygenase-2 (COX-2) but inhibited the activity of COX-2. As a result, SHQA significantly diminished the secretions of nitric oxide (NO), prostaglandin E2 (PGE2), and multiple pro-inflammatory cytokines. LPS-induced activation of nuclear factor-κB (NF-κB) was inhibited by SHQA by preventing the degradation of inhibitor κB-α (IκBα). NF-κB activation was also downregulated by the inhibition of Akt phosphorylation in LPS-stimulated cells. Furthermore, SHQA induced the expression of heme oxygenase 1 via Nrf2 activation. These results indicated that SHQA inhibited LPS-induced expressions of inflammatory mediators via suppressing the Akt-mediated NF-κB pathway as well as upregulating the Nrf2/HO-1 pathway. Our findings suggest that SHQA might be a potential therapeutic agent in various inflammatory diseases.
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Affiliation(s)
- Eun-Ji Joung
- Department of Food Science and Nutrition, Pukyong National University, Nam-gu, Busan, 48513, Republic of Korea
| | - Lei Cao
- Institute of Marine Life Sciences, Pukyong National University, Busan, 48513, Republic of Korea
| | - Bonggi Lee
- Department of Food Science and Nutrition, Pukyong National University, Nam-gu, Busan, 48513, Republic of Korea
| | - Wi-Gyeong Gwon
- Department of Food Science and Nutrition, Pukyong National University, Nam-gu, Busan, 48513, Republic of Korea
| | - Sang-Hyug Park
- Department of Biomedical Engineering, Pukyong National University, Busan, 48513, Republic of Korea
| | - Hyeung-Rak Kim
- Department of Food Science and Nutrition, Pukyong National University, Nam-gu, Busan, 48513, Republic of Korea.
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21
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Rigauts C, Aizawa J, Taylor S, Rogers GB, Govaerts M, Cos P, Ostyn L, Sims S, Vandeplassche E, Sze M, Dondelinger Y, Vereecke L, Van Acker H, Simpson JL, Burr L, Willems A, Tunney MM, Cigana C, Bragonzi A, Coenye T, Crabbé A. Rothia mucilaginosa is an anti-inflammatory bacterium in the respiratory tract of patients with chronic lung disease. Eur Respir J 2021; 59:13993003.01293-2021. [PMID: 34588194 PMCID: PMC9068977 DOI: 10.1183/13993003.01293-2021] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 09/10/2021] [Indexed: 11/24/2022]
Abstract
Background Chronic airway inflammation is the main driver of pathogenesis in respiratory diseases such as severe asthma, chronic obstructive pulmonary disease, cystic fibrosis (CF) and bronchiectasis. While the role of common pathogens in airway inflammation is widely recognised, the influence of other microbiota members is still poorly understood. Methods We hypothesised that the lung microbiota contains bacteria with immunomodulatory activity which modulate net levels of immune activation by key respiratory pathogens. Therefore, we assessed the immunomodulatory effect of several members of the lung microbiota frequently reported as present in CF lower respiratory tract samples. Results We show that Rothia mucilaginosa, a common resident of the oral cavity that is also often detectable in the lower airways in chronic disease, has an inhibitory effect on pathogen- or lipopolysaccharide-induced pro-inflammatory responses, in vitro (three-dimensional cell culture model) and in vivo (mouse model). Furthermore, in a cohort of adults with bronchiectasis, the abundance of Rothia species was negatively correlated with pro-inflammatory markers (interleukin (IL)-8 and IL-1β) and matrix metalloproteinase (MMP)-1, MMP-8 and MMP-9 in sputum. Mechanistic studies revealed that R. mucilaginosa inhibits NF-κB pathway activation by reducing the phosphorylation of IκBα and consequently the expression of NF-κB target genes. Conclusions These findings indicate that the presence of R. mucilaginosa in the lower airways potentially mitigates inflammation, which could in turn influence the severity and progression of chronic respiratory disorders. A commensal bacterium of the lower airways, Rothia mucilaginosa, inhibits inflammation by NF-κB pathway inactivation. R. mucilaginosa abundance inversely correlates with sputum pro-inflammatory markers in chronic lung disease, indicating a beneficial role.https://bit.ly/3lNT9th
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Affiliation(s)
- Charlotte Rigauts
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
| | - Juliana Aizawa
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - Steven Taylor
- Microbiome and Host Health Programme, the South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia.,The SAHMRI Microbiome Research Laboratory, School of Medicine, Flinders University, Adelaide, South Australia, Australia
| | - Geraint B Rogers
- Microbiome and Host Health Programme, the South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia.,The SAHMRI Microbiome Research Laboratory, School of Medicine, Flinders University, Adelaide, South Australia, Australia
| | - Matthias Govaerts
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - Paul Cos
- Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - Lisa Ostyn
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
| | - Sarah Sims
- Microbiome and Host Health Programme, the South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia.,The SAHMRI Microbiome Research Laboratory, School of Medicine, Flinders University, Adelaide, South Australia, Australia
| | - Eva Vandeplassche
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
| | - Mozes Sze
- VIB Center for Inflammation Research, Ghent, Belgium
| | - Yves Dondelinger
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Gent, Belgium
| | - Lars Vereecke
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Rheumatology, Ghent University, Gent, Belgium
| | - Heleen Van Acker
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
| | - Jodie L Simpson
- Faculty of Health and Medicine, Priority Research Centre for Healthy Lungs, University of Newcastle, Callaghan, New South Wales, Australia
| | - Lucy Burr
- Department of Respiratory Medicine, Mater Health Services, South Brisbane, QLD, Australia.,Mater Research - University of Queensland, Aubigny Place, South Brisbane, QLD, Australia
| | - Anne Willems
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Ghent University, Gent, Belgium
| | - Michael M Tunney
- School of Pharmacy, Queen's University Belfast, Belfast, United Kingdom
| | - Cristina Cigana
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Alessandra Bragonzi
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Tom Coenye
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
| | - Aurélie Crabbé
- Laboratory of Pharmaceutical Microbiology, Ghent University, Gent, Belgium
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22
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Casili G, Scuderi SA, Lanza M, Filippone A, Basilotta R, Mannino D, Campolo M, Esposito E, Paterniti I. The protective role of prolyl oligopeptidase (POP) inhibition in acute lung injury induced by intestinal ischemia-reperfusion. Oncotarget 2021; 12:1663-1676. [PMID: 34434495 PMCID: PMC8378771 DOI: 10.18632/oncotarget.28041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/27/2021] [Indexed: 12/15/2022] Open
Abstract
Intestinal ischemia-reperfusion (II/R) develops when the blood flow to the intestines decreases, followed by the reestablishment of the blood supply to the ischemic tissue, resulting in intestinal mucosal barrier dysfunction, with consequent severe local and systemic inflammation. Acute lung injury (ALI) represents the most serious complication after II/R. KYP-2047 is a selective inhibitor of prolyl oligopeptidase (POP), a serine protease involved in the release of pro-angiogenic and inflammatory molecules. The aim of the present study is to assess the effects of POP-inhibition mediated by KYP-2047 treatment in the pathophysiology of ALI following II/R. An in vivo model of II/R was performed and mice were subjected to KYP-2047 treatment (intraperitoneal, 1, 2.5 and 5 mg/kg). Histological analysis, Masson’s trichrome staining, immunohistochemical, immunofluorescence, biochemical and western blots analysis were performed on ileum and lung samples. KYP-2047 treatment ameliorated histological alteration in ileum and lung, reduced collagen amount and lowered inflammatory protein levels. Moreover, TGF-β1, eNOS, VEGF and CD34 positive staining has been modulated; also, a reduction in apoptosis expression was confirmed. This research revealed the strong anti-inflammatory potential of KYP-2047 associated to its modulatory role on angiogenesis and apoptosis, suggesting POP as a novel therapeutic target for ALI after II/R.
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Affiliation(s)
- Giovanna Casili
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Sarah Adriana Scuderi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Marika Lanza
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Alessia Filippone
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Rossella Basilotta
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Deborah Mannino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Michela Campolo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Emanuela Esposito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Irene Paterniti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
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23
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Ningappa M, Adenuga M, Ngo KA, Mohamed N, Narayanan T, Prasadan K, Ashokkumar C, Das J, Schmitt L, Hartman H, Sehrawat A, Salgado CM, Reyes-Mugica M, Gittes GK, Lo CW, Subramaniam S, Sindhi R. Mechanisms of Impaired Lung Development and Ciliation in Mannosidase-1-Alpha-2 ( Man1a2) Mutants. Front Physiol 2021; 12:658518. [PMID: 34366878 PMCID: PMC8343402 DOI: 10.3389/fphys.2021.658518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 06/03/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Ciliary defects cause heterogenous phenotypes related to mutation burden which lead to impaired development. A previously reported homozygous deletion in the Man1a2 gene causes lethal respiratory failure in newborn pups and decreased lung ciliation compared with wild type (WT) pups. The effects of heterozygous mutation, and the potential for rescue are not known. PURPOSE We hypothesized that survival and lung ciliation, (a) would decrease progressively in Man1a2 +/- heterozygous and Man1a2 -/- null newborn pups compared with WT, and (b) could be enhanced by gestational treatment with N-Acetyl-cysteine (NAC), an antioxidant. METHODS Man1a2+/- adult mice were fed NAC or placebo from a week before breeding through gestation. Survival of newborn pups was monitored for 24 h. Lungs, liver and tails were harvested for morphology, genotyping, and transcriptional profiling. RESULTS Survival (p = 0.0001, Kaplan-Meier) and percent lung ciliation (p = 0.0001, ANOVA) measured by frequency of Arl13b+ respiratory epithelial cells decreased progressively, as hypothesized. Compared with placebo, gestational NAC treatment enhanced (a) lung ciliation in pups with each genotype, (b) survival in heterozygous pups (p = 0.017) but not in WT or null pups. Whole transcriptome of lung but not liver demonstrated patterns of up- and down-regulated genes that were identical in living heterozygous and WT pups, and completely opposite to those in dead heterozygous and null pups. Systems biology analysis enabled reconstruction of protein interaction networks that yielded functionally relevant modules and their interactions. In these networks, the mutant Man1a2 enzyme contributes to abnormal synthesis of proteins essential for lung development. The associated unfolded protein, hypoxic and oxidative stress responses can be mitigated with NAC. Comparisons with the developing human fetal lung transcriptome show that NAC likely restores normal vascular and epithelial tube morphogenesis in Man1a2 mutant mice. CONCLUSION Survival and lung ciliation in the Man1a2 mutant mouse, and its improvement with N-Acetyl cysteine is genotype-dependent. NAC-mediated rescue depends on the central role for oxidative and hypoxic stress in regulating ciliary function and organogenesis during development.
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Affiliation(s)
- Mylarappa Ningappa
- Hillman Center for Pediatric Transplantation, Children’s Hospital of Pittsburgh of University of Pittsburgh Medical Center (UPMC), Pittsburgh, PA, United States
| | - Morayooluwa Adenuga
- Hillman Center for Pediatric Transplantation, Children’s Hospital of Pittsburgh of University of Pittsburgh Medical Center (UPMC), Pittsburgh, PA, United States
| | - Kim A. Ngo
- Department of Bioengineering, University of California, San Diego, San Diego, La Jolla, CA, United States
| | - Nada Mohamed
- Division of Pediatric General and Thoracic Surgery, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States
| | - Tejaswini Narayanan
- Department of Bioengineering, University of California, San Diego, San Diego, La Jolla, CA, United States
| | - Krishna Prasadan
- Rangos Research Center Animal Imaging Core, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States
| | - Chethan Ashokkumar
- Hillman Center for Pediatric Transplantation, Children’s Hospital of Pittsburgh of University of Pittsburgh Medical Center (UPMC), Pittsburgh, PA, United States
| | - Jishnu Das
- Hillman Center for Pediatric Transplantation, Children’s Hospital of Pittsburgh of University of Pittsburgh Medical Center (UPMC), Pittsburgh, PA, United States
- Departments of Immunology and Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Lori Schmitt
- Histology Core Laboratory Manager, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States
| | - Hannah Hartman
- Division of Pediatric General and Thoracic Surgery, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States
| | - Anuradha Sehrawat
- Division of Pediatric General and Thoracic Surgery, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States
| | - Claudia M. Salgado
- Division of Pediatric Pathology, UPMC Children’s Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Miguel Reyes-Mugica
- Division of Pediatric Pathology, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States
| | - George K. Gittes
- Surgeon-in-Chief Emeritus, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, United States
| | - Cecilia W. Lo
- Department of Developmental Biology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Shankar Subramaniam
- Department of Bioengineering, University of California, San Diego, San Diego, La Jolla, CA, United States
- Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, La Jolla, CA, United States
- Department of Computer Science and Engineering, and Nanoengineering, University of California, San Diego, San Diego, La Jolla, CA, United States
| | - Rakesh Sindhi
- Hillman Center for Pediatric Transplantation, Children’s Hospital of Pittsburgh of University of Pittsburgh Medical Center (UPMC), Pittsburgh, PA, United States
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24
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Zhan C, Sun Y, Pan J, Chen L, Yuan T. Effect of the Notch4/Dll4 signaling pathway in early gestational intrauterine infection on lung development. Exp Ther Med 2021; 22:972. [PMID: 34335914 PMCID: PMC8290428 DOI: 10.3892/etm.2021.10404] [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: 05/29/2020] [Accepted: 02/05/2021] [Indexed: 11/29/2022] Open
Abstract
Intrauterine infection is an important risk factor for bronchopulmonary dysplasia (BPD). BPD is characterized by arrested lung alveolarization and impaired pulmonary vascularization. The Notch4 signaling pathway is a key regulator of vascular remodeling and angiogenesis. Therefore, the presents study investigated the expression of Notch4, delta-like canonical Notch ligand 4 (Dll4) and related factors in an in vivo rat model and in rat pulmonary microvascular endothelial cells (PMVECs) in vitro, to study the mechanisms by which intrauterine infection affects rat lung development. A rat model of intrauterine infection was established by endocervical inoculation with Escherichia scoli on embryonic day 15. The date of birth was counted as postnatal day 0 (P0). Then, the lung tissues were collected from pups at days P3-P14. The expression of Notch4, Dll4 and related factors was measured by reverse transcription-quantitative PCR and western blotting. In addition, the γ-secretase inhibitor DAPT was used to examine the effect of Notch4 signaling on PMVECs. Intrauterine E. coli infection impaired normal lung development, as indicated by decreased microvessel density, fewer alveoli, fewer secondary septa, and larger alveoli compared with the control group. Furthermore, Notch4, Dll4 and NF-κB levels were significantly increased in the E. coli-infected group at P3 compared with the control group. Similarly, the mRNA expression levels of fetal liver kinase 1 (Flk-1, a VEGF receptor) were significantly increased in the E. coli-infected group at P3 and P7. In PMVECs, the inhibition of Notch4 signaling contributed to decreases in lipopolysaccharide (LPS)-induced expression of VEGF and its receptors. Furthermore, the inhibition of Notch4/Dll4 signaling accelerated cell proliferation and decreased the apoptosis rate of LPS-induced PMVECs. LPS-induced NF-κB expression in PMVECs was also attenuated by the Notch4/Dll4 inhibitor. In conclusion, intrauterine E. coli infection impaired normal lung development, possibly through Notch4/Dll4 signaling and effects on VEGF and its receptors.
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Affiliation(s)
- Canyang Zhan
- Department of Neonatology, Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Yi Sun
- Department of Neonatology, Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Jiarong Pan
- Department of Neonatology, Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Lihua Chen
- Department of Neonatology, Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Tianming Yuan
- Department of Neonatology, Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
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Alharbi KS, Fuloria NK, Fuloria S, Rahman SB, Al-Malki WH, Javed Shaikh MA, Thangavelu L, Singh SK, Rama Raju Allam VS, Jha NK, Chellappan DK, Dua K, Gupta G. Nuclear factor-kappa B and its role in inflammatory lung disease. Chem Biol Interact 2021; 345:109568. [PMID: 34181887 DOI: 10.1016/j.cbi.2021.109568] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 06/14/2021] [Accepted: 06/24/2021] [Indexed: 12/28/2022]
Abstract
Nuclear factor-kappa B, involved in inflammation, host immune response, cell adhesion, growth signals, cell proliferation, cell differentiation, and apoptosis defense, is a dimeric transcription factor. Inflammation is a key component of many common respiratory disorders, including asthma, chronic obstructive pulmonary disease (COPD), bronchiectasis, and acute respiratory distress syndrome. Many basic transcription factors are found in NF-κB signaling, which is a member of the Rel protein family. Five members of this family c-REL, NF-κB2 (p100/p52), RelA (p65), NF-κB1 (p105/p50), RelB, and RelA (p65) produce 5 transcriptionally active molecules. Proinflammatory cytokines, T lymphocyte, and B lymphocyte cell mitogens, lipopolysaccharides, bacteria, viral proteins, viruses, double-stranded RNA, oxidative stress, physical exertion, various chemotherapeutics are the stimulus responsible for NF-κB activation. NF-κB act as a principal component for several common respiratory illnesses, such as asthma, lung cancer, pulmonary fibrosis, COPD as well as infectious diseases like pneumonia, tuberculosis, COVID-19. Inflammatory lung disease, especially COVID-19, can make NF-κB a key target for drug production.
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Affiliation(s)
- Khalid Saad Alharbi
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Al-Jouf, Saudi Arabia
| | | | | | - Sk Batin Rahman
- Bengal School of Technology, Churchura, Hooghly, West Bengal, India
| | - Waleed Hassan Al-Malki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | | | - Lakshmi Thangavelu
- Department of Pharmacology, Saveetha Dental College, Saveetha University, Chennai, India
| | - Sachin K Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Venkata Sita Rama Raju Allam
- Department of Medical Biochemistry and Microbiology, Biomedical Centre (BMC), Uppsala University, Uppsala, Sweden
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Plot No.32-34, Knowledge Park III, Greater Noida, 201310, Uttar Pradesh, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Kuala Lumpur, 57000, Malaysia
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, 2007, Australia.
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, 302017, Mahal Road, Jaipur, India.
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Pandey A, Kulshrestha R, Bansal SK. Dynamic role of LMW-hyaluronan fragments and Toll-like receptors 2,4 in progression of bleomycin induced lung parenchymal injury to fibrosis. THE EGYPTIAN JOURNAL OF BRONCHOLOGY 2021. [PMCID: PMC8138115 DOI: 10.1186/s43168-021-00073-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Pulmonary fibrosis (PF) is a progressive and lethal lung disease of elderly whose incidence has been increasing following the Covid-19 pandemic caused by severe acute respiratory syndrome corona virus 2 (SARS-CoV-2). PF immunopathogenesis involves progressive alveolar epithelial cell damage, release of damage-associated molecular patterns (DAMPs), and extracellular matrix (ECM) injury. We assessed the dynamic role of LMW-hyaluronan (LMW-HA) as DAMP in initiation of host immune TLR-2,4 responses and as determinant in progression of ECM injury to fibrosis. Male Wistar rats were divided into Group I (saline control, n = 24) and Group II (intratracheal bleomycin, 7 U/kg/animal, n = 24). Animals were euthanized on 0, 7, 14, and 28 days. The time course of release of LMW-HA, TLR-2,4 mRNA and protein levels, and NF-κB-p65 levels after bleomycin injury were correlated with the development of parenchymal inflammation, remodelling, and fibrosis. Results Acute lung injury caused by bleomycin significantly increases the pro-inflammatory LMW-HA levels and elevates TLR-2,4 levels on day 7. Subsequently, TLR-2 upregulation, TLR-4 downregulation, and NF-κB signalling follow on days 14 and 28. This results in progressive tissue inflammation, alveolar and interstitial macrophage accumulation, and fibrosis. Conclusions LMW-HA significantly increases in PF caused by non-infectious and infectious (Covid-19) etiologies. The accumulating HA fragments function as endogenous DAMPs and trigger inflammatory responses, through differential TLR2 and TLR4 signalling, thus promoting inflammation and macrophage influx. LMW-HA are reflective of the state of ongoing tissue inflammation and may be considered as a natural biosensor for fibrotic lung diseases and as potential therapeutic targets.
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Pooladanda V, Thatikonda S, Muvvala SP, Devabattula G, Godugu C. BRD4 targeting nanotherapy prevents lipopolysaccharide induced acute respiratory distress syndrome. Int J Pharm 2021; 601:120536. [PMID: 33781885 PMCID: PMC7997899 DOI: 10.1016/j.ijpharm.2021.120536] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 02/06/2023]
Abstract
Acute respiratory distress syndrome (ARDS) is a life threatening respiratory disease associated with pulmonary edema, alveolar dysfunction, hypoxia, and inflammatory cell accumulation. The most contagious form of COVID-19 associated with ARDS caused by SARS-CoV-2. SARS-CoV-2 majorly produces the cytokine storm and severe lung inflammation and ultimately leads to respiratory failure. ARDS is a complex disease and there is no proper therapeutics for effective therapy. Still, there is a huge scope to identify novel targets to combat respiratory illness. In the current study, we have identified the epigenetic regulating protein BRD4 and developed siRNA based nanomedicine to treat the ARDS. The liposomes were prepared by thin-film hydration method, where BRD4 siRNA complexed with cationic lipid and exhibited 96.24 ± 18.01 nm size and stable even in the presence of RNase. BRD4 siRNA lipoplexes (BRD4-siRNA-LP) inhibited inflammatory cells in lungs and suppressed the lipopolysaccharide (LPS) induced the neutrophil infiltration and mast cell accumulation. Also, BRD4 siRNA based nanomedicine significantly reduced the LPS induced cytokine storm followed by inflammatory signaling pathways. Interestingly, BRD4-siRNA-LP suppressed the LPS-induced p65 and STAT3 nuclear translocation and ameliorated the lung inflammation. Thus, BRD4-siRNA-LP could be a plausible therapeutic option for treating ARDS and might be useful for combating the COVID-19 associated respiratory illness.
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Affiliation(s)
- Venkatesh Pooladanda
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana 500037, India
| | - Sowjanya Thatikonda
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana 500037, India
| | - Sai Priya Muvvala
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana 500037, India
| | - Geetanjali Devabattula
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana 500037, India
| | - Chandraiah Godugu
- Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana 500037, India.
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Angelica Polysaccharide Ameliorates Sepsis-Induced Acute Lung Injury through Inhibiting NLRP3 and NF-κB Signaling Pathways in Mice. Mediators Inflamm 2021. [DOI: 10.1155/2021/8866143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Objective. This study aimed to explore the role of angelica polysaccharide (AP) in sepsis-induced acute lung injury (ALI) and its underlying molecular mechanism. Methods. A sepsis model of cecal ligation and puncture (CLP) in male BALB/C mice was used. Then, 24 h after CLP, histopathological changes in lung tissue, lung wet/dry weight ratio, and inflammatory cell infiltration were analyzed. Next, levels of inflammatory cytokines (tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6, and IL-18), as well as the activity of myeloperoxidase (MPO), malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione (GSH), were measured to assess the role of AP. The protein expression of NF-κB p65, p-NF-κB p65, IκBα, p-IκBα, nucleotide-binding domain- (NOD-) like receptor protein 3 (NLRP3), ASC, and caspase-1 was detected by western blot. In addition, the expression of p-NF-κB p65 and NLRP3 was detected by immunohistochemistry. Results. AP treatment ameliorated CLP-induced lung injury and lung edema, as well as decreased the number of total cells, neutrophils, and macrophages in bronchoalveolar lavage fluid (BALF). AP reduced the levels of TNF-α, IL-1β, IL-6, and IL-18 in BALF, as well as in serum. Moreover, AP decreased MPO activity and MDA content, whereas increased SOD and GSH levels. AP inhibited the expression of p-NF-κB p65, p-IκBα, NLRP3, ASC, and caspase-1, while promoted IκBα expression. Conclusion. This study demonstrated that AP exhibits protective effects against sepsis-induced ALI by inhibiting NLRP3 and NF-κB signaling pathways in mice.
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Robbins ME, Cho HY, Hansen JM, Luchsinger JR, Locy ML, Velten M, Kleeberger SR, Rogers LK, Tipple TE. Glutathione reductase deficiency alters lung development and hyperoxic responses in neonatal mice. Redox Biol 2021; 38:101797. [PMID: 33254076 PMCID: PMC7708869 DOI: 10.1016/j.redox.2020.101797] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/07/2020] [Accepted: 11/10/2020] [Indexed: 12/14/2022] Open
Abstract
Cellular antioxidants protect against hyperoxic lung injury. The role of the glutathione (GSH) system in lung development and bronchopulmonary dysplasia (BPD) pathogenesis has not been systematically investigated. The current study utilized GSH reductase-deficient (Gsr-KO) neonatal mice to test the hypothesis that early disruption of the GSH system negatively impacts lung development and hyperoxic responses. Lungs from wild-type (Gsr-WT) and Gsr-KO mice were analyzed for histopathology, developmental markers, redox indices, and transcriptome profiling at different developmental stages following exposure to room air or hyperoxia (85% O2) for up to 14 d. Lungs from Gsr-KO mice exhibited alveolar epithelial dysplasia in the embryonic and neonatal periods with relatively normal lung architecture in adulthood. GSH and its oxidized form (GSSG) were 50-70% lower at E19-PND14 in Gsr-KO lungs than in age-matched Gsr-WT. Differential gene expression between Gsr-WT and Gsr-KO lungs was analyzed at discrete developmental stages. Gsr-KO lungs exhibited downregulated cell cycle and DNA damage checkpoint genes at E19, as well as lung lipid metabolism and surfactant genes at PND5. In addition to abnormal baseline lung morphometry, Gsr-KO mice displayed a blunted response to hyperoxia. Hyperoxia caused a more robust upregulation of the lung thioredoxin system in Gsr-KO compared to Gsr-WT. Gsr-dependent, hyperoxia-responsive genes were highly associated with abnormal cytoskeleton, skeletal-muscular function, and tissue morphology at PND5. Overall, our data in Gsr-KO mice implicate the GSH system as a key regulator of lung development, cellular differentiation, and hyperoxic responses in neonatal mice.
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Affiliation(s)
- Mary E Robbins
- Division of Neonatology, Department of Pediatrics, Northwestern University, Chicago, IL, USA.
| | - Hye-Youn Cho
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Jason M Hansen
- Physiology & Developmental Biology, Brigham Young University, Provo, UT, USA
| | - Joseph R Luchsinger
- Medical Scientist Training Program, Vanderbilt University, Nashville, TN, USA
| | - Morgan L Locy
- Medical Scientist Training Program, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Markus Velten
- Department of Anesthesiology and Intensive Care Medicine, Rheinische Friedrich- Wilhelms University, University Medical Center, Bonn, Germany
| | - Steven R Kleeberger
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Lynette K Rogers
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Trent E Tipple
- Center for Pregnancy and Newborn Research, Section of Neonatal-Perinatal Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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30
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Tsai CY, Chou HC, Chen CM. Perinatal nicotine exposure alters lung development and induces HMGB1-RAGE expression in neonatal mice. Birth Defects Res 2020; 113:570-578. [PMID: 33166075 DOI: 10.1002/bdr2.1840] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 10/17/2020] [Accepted: 10/31/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Maternal nicotine exposure during gestation and lactation adversely affect lung development of their children. High-mobility group box 1 (HMGB1) is the encoded non-histone, nuclear DNA-binding protein that regulates transcription, and is involved in organization of DNA. Receptors for advanced glycation end products (RAGE) is a receptor for HMGB1 and activates nuclear factor-κB (NF-κB) signaling. Animal and human studies have found cigarette smoke exposure upregulates RAGE expression, suggesting that the HMGB1-RAGE pathway might be involved in maternal nicotine-induced lung injury. METHODS This study evaluated prenatal and perinatal nicotine effects on lung development and HMGB1 and RAGE expression in mouse offspring. Nicotine was administered to pregnant mice by subcutaneous osmotic mini-pump at a dose of 6 mg kg-1 day-1 from gestational Day 14 to birth (prenatal) or to postnatal Day 21 (perinatal). A control group received an equal volume of saline by the same route. Three study groups were obtained: prenatal normal saline (NS), prenatal nicotine, and perinatal nicotine groups. The mice were euthanized on postnatal Day 21, and the lung tissues were collected for histological and Western blot analyses. RESULTS Mice exposed to prenatal nicotine exhibited significantly higher lung mean chord length and oxidative stress marker 8-hydroxy-2'-deoxyguanosine and NF-κB expression compared to mice exposed to NS. Perinatal nicotine exposure further enhanced these harmful effects. These perinatal nicotine effects on lung development were associated with increased HMGB1 and RAGE expression. CONCLUSIONS HMGB1-RAGE pathway may be involved in the pathogenesis of altered lung development induced by perinatal nicotine exposure.
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Affiliation(s)
- Chin-Yen Tsai
- Department of Pediatrics, Yuan's General Hospital, Kaohsiung, Taiwan
| | - Hsiu-Chu Chou
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chung-Ming Chen
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan
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Chen CM, Hwang J, Chou HC, Chen C. Anti-Tn Monoclonal Antibody Attenuates Hyperoxia-Induced Lung Injury by Inhibiting Oxidative Stress and Inflammation in Neonatal Mice. Front Pharmacol 2020; 11:568502. [PMID: 33013407 PMCID: PMC7506044 DOI: 10.3389/fphar.2020.568502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 08/13/2020] [Indexed: 12/13/2022] Open
Abstract
Maternal immunization with Tn vaccine increases serum anti-Tn antibody titers and attenuates hyperoxia-induced lung injury in neonatal rats. This study determined whether anti-Tn monoclonal antibody can protect against hyperoxia-induced lung injury in neonatal mice. Newborn BALB/c mice were exposed to room air (RA) or normobaric hyperoxia (85% O2) for 1 week, creating four study groups as follows: RA + phosphate-buffered saline (PBS), RA + anti-Tn monoclonal antibody, O2 + PBS, and O2 + anti-Tn monoclonal antibody. The anti-Tn monoclonal antibody at 25 μg/g body weight in 50 μl PBS was intraperitoneally injected on postnatal days 2, 4, and 6. Hyperoxia reduced body weight and survival rate, increased mean linear intercept (MLI) and lung tumor necrosis factor-α, and decreased vascular endothelial growth factor (VEGF) expression and vascular density on postnatal day 7. Anti-Tn monoclonal antibody increased neonatal serum anti-Tn antibody titers, reduced MLI and cytokine, and increased VEGF expression and vascular density to normoxic levels. The attenuation of lung injury was accompanied by a reduction in lung oxidative stress and nuclear factor-κB activity. Anti-Tn monoclonal antibody improves alveolarization and angiogenesis in hyperoxia-injured newborn mice lungs through the suppression of oxidative stress and inflammation.
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Affiliation(s)
- Chung-Ming Chen
- Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan.,Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jaulang Hwang
- Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan
| | - Hsiu-Chu Chou
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chinde Chen
- Department of Research and Development, Taivital Biopharmaceutical Co. LTD, Taoyuan, Taiwan
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Sucre JMS, Vickers KC, Benjamin JT, Plosa EJ, Jetter CS, Cutrone A, Ransom M, Anderson Z, Sheng Q, Fensterheim BA, Ambalavanan N, Millis B, Lee E, Zijlstra A, Königshoff M, Blackwell TS, Guttentag SH. Hyperoxia Injury in the Developing Lung Is Mediated by Mesenchymal Expression of Wnt5A. Am J Respir Crit Care Med 2020; 201:1249-1262. [PMID: 32023086 DOI: 10.1164/rccm.201908-1513oc] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Rationale: Bronchopulmonary dysplasia (BPD) is a leading complication of preterm birth that affects infants born in the saccular stage of lung development at <32 weeks of gestation. Although the mechanisms driving BPD remain uncertain, exposure to hyperoxia is thought to contribute to disease pathogenesis.Objectives: To determine the effects of hyperoxia on epithelial-mesenchymal interactions and to define the mediators of activated Wnt/β-catenin signaling after hyperoxia injury.Methods: Three hyperoxia models were used: A three-dimensional organotypic coculture using primary human lung cells, precision-cut lung slices (PCLS), and a murine in vivo hyperoxia model. Comparisons of normoxia- and hyperoxia-exposed samples were made by real-time quantitative PCR, RNA in situ hybridization, quantitative confocal microscopy, and lung morphometry.Measurements and Main Results: Examination of an array of Wnt ligands in the three-dimensional organotypic coculture revealed increased mesenchymal expression of WNT5A. Inhibition of Wnt5A abrogated the BPD transcriptomic phenotype induced by hyperoxia. In the PCLS model, Wnt5A inhibition improved alveolarization following hyperoxia exposure, and treatment with recombinant Wnt5a reproduced features of the BPD phenotype in PCLS cultured in normoxic conditions. Chemical inhibition of NF-κB with BAY11-7082 reduced Wnt5a expression in the PCLS hyperoxia model and in vivo mouse hyperoxia model, with improved alveolarization in the PCLS model.Conclusions: Increased mesenchymal Wnt5A during saccular-stage hyperoxia injury contributes to the impaired alveolarization and septal thickening observed in BPD. Precise targeting of Wnt5A may represent a potential therapeutic strategy for the treatment of BPD.
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Affiliation(s)
- Jennifer M S Sucre
- Mildred Stahlman Division of Neonatology, Department of Pediatrics.,Department of Cell and Developmental Biology, and
| | | | - John T Benjamin
- Mildred Stahlman Division of Neonatology, Department of Pediatrics
| | - Erin J Plosa
- Mildred Stahlman Division of Neonatology, Department of Pediatrics
| | | | - Alissa Cutrone
- Medical Scientist Training Program, Vanderbilt University School of Medicine, Nashville, Tennessee
| | | | | | | | - Benjamin A Fensterheim
- Medical Scientist Training Program, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Namasivayam Ambalavanan
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama
| | - Bryan Millis
- Department of Cell and Developmental Biology, and.,Cell Imaging Shared Resource, Vanderbilt University, Nashville, Tennessee
| | - Ethan Lee
- Department of Cell and Developmental Biology, and
| | | | - Melanie Königshoff
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, Denver, Colorado; and
| | - Timothy S Blackwell
- Department of Cell and Developmental Biology, and.,Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee.,Nashville Veterans Affairs Medical Center, Nashville, Tennessee
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Gaikwad AV, Eapen MS, McAlinden KD, Chia C, Larby J, Myers S, Dey S, Haug G, Markos J, Glanville AR, Sohal SS. Endothelial to mesenchymal transition (EndMT) and vascular remodeling in pulmonary hypertension and idiopathic pulmonary fibrosis. Expert Rev Respir Med 2020; 14:1027-1043. [PMID: 32659128 DOI: 10.1080/17476348.2020.1795832] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
INTRODUCTION Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive, and irreversible fibrotic disease associated with respiratory failure. The disease remains idiopathic, but repeated alveolar epithelium injury, disruption of alveolar-capillary integrity, abnormal vascular repair, and pulmonary vascular remodeling are considered possible pathogenic mechanisms. Also, the development of comorbidities such as pulmonary hypertension (PH) could further impact disease outcome, quality of life and survival rates in IPF. AREAS COVERED The current review provides a comprehensive literature survey of the mechanisms involved in the development and manifestations of IPF and their links to PH pathology. This review also provides the current understanding of molecular mechanisms that link the two pathologies and will specifically decipher the role of endothelial to mesenchymal transition (EndMT) along with the possible triggers of EndMT. The possibility of targeting EndMT as a therapeutic option in IPF is discussed. EXPERT OPINION With a steady increase in prevalence and mortality, IPF is no longer considered a rare disease. Thus, it is of utmost importance and urgency that the underlying profibrotic pathways and mechanisms are fully understood, to enable the development of novel therapeutic strategies.
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Affiliation(s)
- Archana Vijay Gaikwad
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia
| | - Mathew Suji Eapen
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia
| | - Kielan D McAlinden
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia
| | - Collin Chia
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia.,Department of Respiratory Medicine, Launceston General Hospital , Launceston, Australia
| | - Josie Larby
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia.,Department of Respiratory Medicine, Launceston General Hospital , Launceston, Australia
| | - Stephen Myers
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia
| | - Surajit Dey
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia
| | - Greg Haug
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia.,Department of Respiratory Medicine, Launceston General Hospital , Launceston, Australia
| | - James Markos
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia.,Department of Respiratory Medicine, Launceston General Hospital , Launceston, Australia
| | - Allan R Glanville
- Lung Transplant Unit, Department of Thoracic Medicine, St Vincent's Hospital , Sydney, Australia
| | - Sukhwinder Singh Sohal
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania , Launceston, Australia
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Shaikh SB, Prabhakar Bhandary Y. Effect of curcumin on IL-17A mediated pulmonary AMPK kinase/cyclooxygenase-2 expressions via activation of NFκB in bleomycin-induced acute lung injury in vivo. Int Immunopharmacol 2020; 85:106676. [PMID: 32535538 DOI: 10.1016/j.intimp.2020.106676] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/20/2020] [Accepted: 06/03/2020] [Indexed: 11/25/2022]
Abstract
Acute lung injury (ALI) remains to be the major cause of mortality. Bleomycin (BLM) injury activates the pro-inflammatory cytokine Interleukin L-17A which regulates the expression of COX-2 and inhibits P-AMPKα in BLM/IL-17A exposed mice upon activation of NFκB and other inflammatory molecules the actual mechanism behind which remains unclear. The current investigation was carried out to assess the role of IL-17A with COX-2 and P- AMPKα and to highlight the important contribution of adjunctive use of curcumin as a promising preventive strategy for the BLM-induced ALI. Immunofluorescence analysis reveals that the natural spice curcumin blocks the expressions of COX-2, NF-κB-p65, fibronectin (FBN), and expresses P-AMPKα in vivo. Curcumin could also suppress the expressions of NF-κB-p105 in BLM/IL-17A exposed mice. mRNA expressions showed reduced expressions of PDGFA, PDGFB, CTGF, IGF1, NFκB1, NFκB2, MMP-3, MMP-9, and MMP-14 on curcumin treatment. Our study implicates a critical role of AMPKα/COX- 2 in the emergence of pulmonary fibrosis via exerting the potential role of curcumin as an adjuvant anti-inflammatory therapeutic for treating lung injury.
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Affiliation(s)
- Sadiya Bi Shaikh
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575018, Karnataka, India
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AEBP1 is a Novel Oncogene: Mechanisms of Action and Signaling Pathways. JOURNAL OF ONCOLOGY 2020; 2020:8097872. [PMID: 32565808 PMCID: PMC7273425 DOI: 10.1155/2020/8097872] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 04/13/2020] [Indexed: 12/29/2022]
Abstract
Adipocyte enhancer-binding protein 1 (AEBP1) is a transcriptional repressor involved in the regulation of critical biological processes including adipogenesis, mammary gland development, inflammation, macrophage cholesterol homeostasis, and atherogenesis. Several years ago, we first reported the ability of AEBP1 to exert a positive control over the canonical NF-κB pathway. Indeed, AEBP1 positively regulates NF-κB activity via its direct interaction with IκBα, a key NF-κB inhibitor. AEBP1 overexpression results in uncontrollable activation of NF-κB, which may have severe pathogenic outcomes. Recently, the regulatory relationship between AEBP1 and NF-κB pathway has been of great interest to many researchers primarily due to the implication of NF-κB signaling in critical cellular processes such as inflammation and cancer. Since constitutive activation of NF-κB is widely implicated in carcinogenesis, AEBP1 overexpression is associated with tumor development and progression. Recent studies sought to explore the effects of the overexpression of AEBP1, as a potential oncogene, in different types of cancer. In this review, we analyze the effects of AEBP1 overexpression in a variety of malignancies (e.g., breast cancer, glioblastoma, bladder cancer, gastric cancer, colorectal cancer, ovarian cancer, and skin cancer), with a specific focus on the AEBP1-mediated control over the canonical NF-κB pathway. We also underscore the ability of AEBP1 to regulate crucial cancer-related events like cell proliferation and apoptosis in light of other key pathways (e.g., PI3K-Akt, sonic hedgehog (Shh), p53, parthanatos (PARP-1), and PTEN). Identifying AEBP1 as a potential biomarker for cancer prognosis may lead to a novel therapeutic target for the prevention and/or treatment of various types of cancer.
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Lei J, Shen Y, Xv G, Di Z, Li Y, Li G. Aloin suppresses lipopolysaccharide-induced acute lung injury by inhibiting NLRP3/NF-κB via activation of SIRT1 in mice. Immunopharmacol Immunotoxicol 2020; 42:306-313. [PMID: 32419528 DOI: 10.1080/08923973.2020.1765373] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The purpose of this study was to explore the protective effects and potential mechanisms of aloin on lipopolysaccharide (LPS)-induced acute lung injury (ALI). METHODS Mice were pretreatment with aloin 1 h before LPS administration. The number of inflammatory cells and the levels of TNF-α and IL-1β was detected. The lung histopathological changes, wet/dry ratio, MPO activity, GSH, MDA, SOD, and the expression of NF-κB and NLRP3 inflammasome were measured. RESULTS The results showed that aloin significantly inhibited the number of total cells, neutrophils, and macrophages, as well as the levels of TNF-α and IL-1β in BALF induced by LPS. In addition, pretreatment with aloin also inhibited LPS-induced lung histopathological injuries, lung wet/dry ratio, MPO activity, and MDA content. The levels of GSH and SOD were decreased by LPS and treatment of aloin could increase the levels of GSH and SOD. To study the protective mechanisms of alion on LPS-induced ALI, the expression of SIRT1, NF-κB and NLRP3 inflammasome were tested. We found that aloin significantly inhibited the activation of NF-κB and NLRP3 inflammasome in ALI induced by LPS. Meanwhile, aloin was found to increase the expression of SIRT1 and inhibition of SIRT1 by EX-527 reversed the protective effects of aloin. CONCLUSIONS These results suggest that aloin exerts its protective effects on LPS-induced ALI by activation SIRT1, which subsequently results in the suppression of NF-κB and NLRP3 inflammasome.
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Affiliation(s)
- Jiaji Lei
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yongbin Shen
- Department of Vascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Guangquan Xv
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhixin Di
- Department of ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yongchao Li
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Guanghua Li
- Department of Thoracic Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Anti-Inflammatory Profile of Jungia sellowii Less. by Downregulation of Proinflammatory Mediators and Inhibition of NF- κB and p38 Pathways. Mediators Inflamm 2020; 2020:9078956. [PMID: 32351323 PMCID: PMC7171683 DOI: 10.1155/2020/9078956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 03/19/2020] [Indexed: 12/15/2022] Open
Abstract
Jungia sellowii Less. (Asteraceae) is a native plant found in Southeast Brazil used traditionally to treat inflammatory diseases. This study was conducted (1) to investigate the toxicity of the crude extract (CE) and (2) to investigate the mechanism of the anti-inflammatory action of J. sellowii L. roots. The potential acute toxicity of CE was performed by administration of only different doses of CE (500, 1,000, and 2,000 i.p.) on mice for 14 days. The anti-inflammatory effect was evaluated using carrageenan-induced acute pleural cavity inflammation in a mouse model, evaluated through the following inflammatory variables: leukocyte, protein concentrations of the exudate, myeloperoxidase (MPO), adenosine deaminase (ADA), nitric oxide metabolites (NOx), and proinflammatory cytokine (tumor necrosis factor alpha (TNF-α), interferon gamma (IFN-γ), interleukin- (IL-) 6, and IL-12) levels in mouse pleural fluid leakage. The p65 protein phosphorylation of nuclear factor NF-kappa B (p65 NF-κB) and p38 mitogen-activated protein kinase (p38 MAPK) phosphorylation were analyzed in lung tissue. Our results demonstrated that the administration of CE up to 2,000 mg/kg did not present a toxic effect. In addition, the pretreatment of mice with CE; its derived fractions (aqueous fraction (AqF), butanol fraction (BuOHF), and ethyl acetate fraction (EtOAcF)); and isolated compounds (curcuhydroquinone O-β-glucose (CUR) and α and β piptizol (Pip)) reduced the following inflammatory variables: neutrophils, protein concentrations of the exudate, MPO, ADA, NOx, and proinflammatory cytokine (TNF-α, IFN-γ, IL-6, and IL-12) levels in mouse pleural fluid leakage. The compounds CUR and Pip also decreased the p65 protein phosphorylation of NF-kappa B and p38 (MAPK) in lung tissue. J. sellowii L. has important anti-inflammatory activity with potential applications in drug development against inflammatory disorders. These effects found can be attributed to the ability of the new isolated compounds CUR and Pip to suppress p65 NF-κB and p-p38 MAPK pathways.
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Radwan SM, Ghoneim D, Salem M, Saeed M, Saleh Y, Elhamy M, Wael K, Shokair O, Wahdan SA. Adipose Tissue-Derived Mesenchymal Stem Cells Protect Against Amiodarone-Induced Lung Injury in Rats. Appl Biochem Biotechnol 2020; 191:1027-1041. [PMID: 31950448 DOI: 10.1007/s12010-020-03227-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/08/2020] [Indexed: 02/04/2023]
Abstract
Pulmonary fibrosis (PF) is a progressive and irreversible lung disease, characterized by poor prognosis with limited treatment options. Mesenchymal stem cells (MSCs) are multi-potent cells having the ability to self-renew and differentiate into multiple tissues, thus considered a novel treatment option. The present study aimed to investigate the possible antifibrotic effect of undifferentiated adipose tissue-derived mesenchymal stem cell (AD-MSC) therapy on PF experimentally induced in rats using amiodarone (AMD). AMD (30 mg/kg) was given orally, once daily for 12 consecutive weeks to induce lung fibrosis. Following the confirmation of lung damage with histopathological examination, AD-MSCs (2 × 106 and 4 × 106 undifferentiated MSCs) were injected once intravenously, followed by 2 months for treatment. AMD induced focal fibroblastic cells proliferation in the peribronchiolar tissue, as well as in between the collapsed emphysematous alveoli. Also, AMD significantly increased serum and lung homogenate fibroblast growth factor-7 (FGF7), Clara cell protein-16 (CC16), and cytokeratin -19 (CK19) levels, as well as the expression of both iNOS and NFкB in the lung alveoli. Moreover, AMD caused excessive collagen deposition and increased alpha smooth muscle actin (α-SMA) expression. All findings significantly regressed on stem cell therapy in both doses, with superior effect of the high dose, providing evidence that adipose tissue-derived MSCs could be a promising approach for the treatment of PF. Graphical Abstract.
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Affiliation(s)
- Sara M Radwan
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Dalia Ghoneim
- Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Manar Salem
- Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Menna Saeed
- Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Yara Saleh
- Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | | | - Kholoud Wael
- Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Omnia Shokair
- Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Sara A Wahdan
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
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Bordoloi D, Banik K, Padmavathi G, Vikkurthi R, Harsha C, Roy NK, Singh AK, Monisha J, Wang H, Kumar AP, Kunnumakkara AB. TIPE2 Induced the Proliferation, Survival, and Migration of Lung Cancer Cells Through Modulation of Akt/mTOR/NF-κB Signaling Cascade. Biomolecules 2019; 9:E836. [PMID: 31817720 PMCID: PMC6995575 DOI: 10.3390/biom9120836] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/27/2019] [Accepted: 12/02/2019] [Indexed: 12/17/2022] Open
Abstract
Lung cancer represents the most common cause of cancer deaths in the world, constituting around 11.6% of all new cancer cases and 18.4% of cancer-related deaths. The propensity for early spread, lack of suitable biomarkers for early diagnosis, as well as prognosis and ineffective existing therapies, contribute to the poor survival rate of lung cancer. Therefore, there is an urgent need to develop novel biomarkers for early diagnosis and prognosis which in turn can facilitate newer therapeutic avenues for the management of this aggressive neoplasm. TIPE2 (tumor necrosis factor-α-induced protein 8-like 2), a recently identified cytoplasmic protein, possesses enormous potential in this regard. Immunohistochemical analysis showed that TIPE2 was significantly upregulated in different stages and grades of lung cancer tissues compared to normal lung tissues, implying its involvement in the positive regulation of lung cancer. Further, knockout of TIPE2 resulted in significantly reduced proliferation, survival, and migration of human lung cancer cells through modulation of the Akt/mTOR/NF-κB signaling axis. In addition, knockout of TIPE2 also caused arrest in the S phase of the cell cycle of lung cancer cells. As tobacco is the most predominant risk factor for lung cancer, we therefore evaluated the effect of TIPE2 in tobacco-mediated lung carcinogenesis as well. Our results showed that TIPE2 was involved in nicotine-, nicotine-derived nitrosamine ketone (NNK)-, N-nitrosonornicotine (NNN)-, and benzo[a]pyrene (BaP)-mediated lung cancer through inhibited proliferation, survival, and migration via modulation of nuclear factor kappa B (NF-κB)- and NF-κB-regulated gene products, which are involved in the regulation of diverse processes in lung cancer cells. Taken together, TIPE2 possesses an important role in the development and progression of lung cancer, particularly in tobacco-promoted lung cancer, and hence, specific targeting of it holds an enormous prospect in newer therapeutic interventions in lung cancer. However, these findings need to be validated in the in vivo and clinical settings to fully establish the diagnostic and prognostic importance of TIPE2 against lung cancer.
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Affiliation(s)
- Devivasha Bordoloi
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Kishore Banik
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Ganesan Padmavathi
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Rajesh Vikkurthi
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Choudhary Harsha
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Nand Kishor Roy
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Anuj Kumar Singh
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Javadi Monisha
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Hong Wang
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore;
- Singapore Nuclear Research and Safety Initiative, National University of Singapore, Singapore 138602, Singapore
| | - Alan Prem Kumar
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore;
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
| | - Ajaikumar B Kunnumakkara
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
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Abstract
Fetal development occurs in a relatively hypoxemic environment, and birth represents significant oxidative stress. Premature infants are disadvantaged by a lack of maternal antioxidant transfer and impaired endogenous antioxidant responses. O2 metabolism is essential for life and its biochemical reactions are dynamic, compartmentalized, and difficult to characterize in vivo. There is a growing appreciation for the role of reactive oxygen species in nonpathologic processes, including regulation of cell signaling and mitochondrial function. There are several gaps in the knowledge about the role of reactive oxygen species in normal development and how oxidative stress alters normal signaling and subsequent development.
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Affiliation(s)
- Trent E Tipple
- Division of Neonatology, Department of Pediatrics, The University of Alabama at Birmingham, 176 F Suite 9380, 619 19th Street South, Birmingham, AL 35249-7335, USA.
| | - Namasivayam Ambalavanan
- Division of Neonatology, Department of Pediatrics, The University of Alabama at Birmingham, 176 F Suite 9380, 619 19th Street South, Birmingham, AL 35249-7335, USA
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Liu B, Wang Y, Wu Y, Cheng Y, Qian H, Yang H, Shen F. IKKβ regulates the expression of coagulation and fibrinolysis factors through the NF-κB canonical pathway in LPS-stimulated alveolar epithelial cells type II. Exp Ther Med 2019; 18:2859-2866. [PMID: 31572531 PMCID: PMC6755483 DOI: 10.3892/etm.2019.7928] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 07/12/2019] [Indexed: 01/11/2023] Open
Abstract
Aim: Hypercoagulation and fibrinolysis inhibition in the alveolar cavity are important characteristics in acute respiratory distress syndrome (ARDS). Alveolar epithelial cells type II (AEC II) have been confirmed to have significant role in regulating alveolar hypercoagulation and fibrinolysis inhibition, but the mechanism is unknown. Nuclear factor-κB (NF-κB) signaling pathway has been demonstrated to participate in the pathogenesis of these two abnormalities in ARDS. The purpose of the present study is to explore whether controlling the upstream crucial factor IκB kinase (IKK)β could regulate coagulation and fibrinolysis factors in LPS-stimulated AEC II. Materials and methods: An IKKβ gene regulation model (IKKβ+/+ and IKKβ−/−) was prepared using lentiviral vector transfection. The models with wild type cells were all stimulated by lipopolysaccharide (LPS) or saline for 24 h. Expression of the related proteins were determined by western-blotting, ELISA and revere transcription-PCR respectively. Tissue factor (TF) procoagulant activity and nuclear p65 protein level were also detected. Results: IKKβ increased in IKKβ+/+ cells but decreased in IKKβ−/− cells. LPS stimulation promoted the expression of p-IκBα, p65, p-p65 and p-IKKβ as well as TF and plasminogen activator inhibitor (PAI)-1, at the mRNA or protein level, and this was significantly enhanced by IKKβ upregulation but weakened by IKKβ downregulation. TF procoagulant activity presented the same changes as the molecules above. ELISAs showed additional increases in the concentrations of as thrombin antithrombin, procollagen III propeptide, thrombomodulin and PAI-1 in IKKβ+/+ cell supernatant under LPS stimulation, however they decreased in IKKβ−/−. The level of as antithrombin III however, appeared to show the opposite change to those other factors. Immunofluorescence demonstrated a greatly enhanced expression of p65 in the nucleus by IKKβ upregulation, which was reduced by IKKβ downregulation. Conclusions: IKKβ could regulate the expression and secretion of coagulation and fibrinolysis factors in LPS-stimulated AEC II via the NF-κB p65 signaling pathway. The IKKβ molecule is expected to be a new target for prevention of coagulation and fibrinolysis abnormalities in ARDS.
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Affiliation(s)
- Bo Liu
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Yahui Wang
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Yanqi Wu
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Yumei Cheng
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Hong Qian
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Huilin Yang
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
| | - Feng Shen
- Department of Critical Care Medicine, Guizhou Medical University Affiliated Hospital, Guiyang, Guizhou 550001, P.R. China
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Sun Y, Chen C, Di T, Yang J, Wang K, Zhu Y, Zhu R, Zhou A, Qian Y. Human β-Defensin-2 Improves Hyperoxia-Induced Lung Structural and Functional Injury in Neonatal Rats. Med Sci Monit 2019; 25:6074-6084. [PMID: 31411185 PMCID: PMC6705181 DOI: 10.12659/msm.915814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background Bronchopulmonary dysplasia (BPD) is a major complication of extreme prematurity, characterized by alveolar simplification and pulmonary malfunction. Hyperoxia-induced lung injury in neonatal rats has been used as a model of BPD, as indicated by lung architectural change and alveolar simplification that resembles clinical feature of BPD. β-defensin-2 (BD2) plays an important role in lung diseases by inhibiting inflammation response. However, little is known about its role in BPD. The aim of this study was to determine the effect of human BD2 (hBD2) gene on hyperoxia-induced animal model of BPD. Material/Methods The neonatal rats were exposed to 90% oxygen (O2) continuously for 14 days to mimic the BPD-like lung injury. These rats were then randomly assigned to the following four groups: in room air (air), in 90% O2, in 90% O2 with null adenovirus vector infection (O2+Ad), and in 90% O2 with gene therapy through adenovirus transfected hBD2 (O2+Ad-hBD2). Morphology of lungs, pulmonary function and expression of inflammatory cytokines on P7, P10, P14, and P21 were documented and compared across the 4 groups. Results The overexpression of hBD2 mediated by the adenovirus vector was successfully constructed. hBD2 gene therapy increased hBD2 mRNA expression, increased radial alveolar count (RAC), lung volume and compliance, decreased mean linear intercept (MLI), tissue damping, and elastance. Furthermore, pro-inflammatory cytokines IL-1β, IL-6, and TNF-α were inhibited and anti-inflammatory cytokines IL-10 was increased in the lungs of rats in O2+Ad-hBD2 group. Conclusions In hyperoxia-induced rat models of BPD, hBD2 promotes alveolarization and improves pulmonary function. The mechanism may contribute in alleviating inflammation response and inhibiting pro-inflammatory factors including IL-1β, IL-6, and TNF-α.
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Affiliation(s)
- Yuanyuan Sun
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Cuie Chen
- Department of Pediatrics, Yiwu Maternity and Children Health Care Hospital, Jinhua, Zhejiang, China (mainland)
| | - Tianwei Di
- Department of Pediatrics, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China (mainland)
| | - Jiaojiao Yang
- Department of Pediatrics, Cangnan People's Hospital, Wenzhou, Zhejiang, China (mainland)
| | - Kai Wang
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Yanke Zhu
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Ronghe Zhu
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Aihua Zhou
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
| | - Yan Qian
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China (mainland)
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Shen YQ, Pan JJ, Sun ZY, Chen XQ, Zhou XG, Zhou XY, Cheng R, Yang Y. Differential expression of circRNAs during rat lung development. Int J Mol Med 2019; 44:1399-1413. [PMID: 31432143 PMCID: PMC6713411 DOI: 10.3892/ijmm.2019.4299] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 06/28/2019] [Indexed: 12/14/2022] Open
Abstract
At present, thousands of circular RNAs (circRNAs) have been found in cancer and various tissues from different species. However, the expression of circRNAs during rat lung development remains largely unknown. In the present study, circRNA expression profiles were screened in three mixed rat lung tissues at 3 time-points [embryonic day (E) 19, E21 and post-natal (P) day 3] during fetal rat development with circRNA high-throughput sequencing. Preliminary results were verified by reverse transcription-PCR (RT-PCR) at 4 time-points (E16, E19, E21 and P3). A total of 375 circRNAs were differently expressed in E19 vs. E21 (fold change ≥1.5; P<0.05). At the same time, a total of 358 circRNAs were differently expressed in E21 vs. P3 (fold change ≥1.5; P<0.05). A total of 3 circRNAs (rno_circ:chr7:24777879-24784993, r n o _c i r c:c h r14:14 62 0 910 −14 62 49 33 a n d r n o _circ:chr3:1988750- 1998592) were characterized by having consistent fold changes (≥1.5) between 3 time-points (E19, E21 and P3) and were selected for RT-PCR at 4 time-points (E16, E19, E21 and P3). Subsequently, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analysis of parent genes of the differentially expressed circRNAs revealed that these circRNAs may serve important roles in lung development. The present results support that these new found circRNAs participate in lung development. Furthermore, these findings may help to clarify the physiopathological mechanism of normal rat lung development, and may further provide a physiopatho-logical basis of lung developmental diseases.
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Affiliation(s)
- Yan-Qing Shen
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Jing-Jing Pan
- Department of Pediatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Zhong-Yi Sun
- Department of Pediatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xiao-Qing Chen
- Department of Pediatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xiao-Guang Zhou
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Xiao-Yu Zhou
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Rui Cheng
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Yang Yang
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
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You Y, Guo C, Zhang H, Deng S, Tang J, Xu L, Deng C, Gong F. Effect of Intranasal Instillation of Lipopolysaccharide on Lung Development and Its Related Mechanism in Newborn Mice. J Interferon Cytokine Res 2019; 39:684-693. [PMID: 31268385 PMCID: PMC6820870 DOI: 10.1089/jir.2019.0006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Premature infants are prone to repeated lung infections after birth, which can disrupt the development of lung structure and function. However, the effects of postnatal pulmonary inflammation on lung development in newborn mice have not been reported and may play an important role in the development of bronchopulmonary dysplasia (BPD). This study aimed to establish a BPD model of postnatal pulmonary inflammation in premature infants and to explore its role and possible mechanisms in the pathogenesis of BPD. We exposed postnatal day 1 mice to lipopolysaccharide (LPS) and normal saline for 14 days. Pulmonary inflammation and alveolar microvascular development were assessed by histology. In addition, we also examined the expression of vascular endothelial growth factor (VEGF), VEGFR2, nuclear factor-kappa-B (NF-κB) and related inflammatory mediators [interleukin-1β (IL-1β), tumor necrosis factor-alpha (TNF-α), macrophage inflammatory protein-1α (MIP-1α), monocyte chemoattractant protein-1 (MCP-1)] in the lungs. Lung histology revealed inflammatory cell infiltration, alveolar simplification, and decreased microvascular density in LPS-exposed lungs. VEGF and VEGFR2 expression was decreased in the lungs of LPS-exposed neonatal mice. Furthermore, we detected elevated levels of the inflammatory mediators IL-1β, TNF-α, MIP-1α, and MCP-1 in the lungs, which are associated with the activation of NF-κB. Intranasal instillation of LPS inhibits lung development in newborn mice, and postnatal pulmonary inflammation may participate in the pathogenesis of BPD. The mechanism is related to the inhibition of VEGF and VEGFR2 and the upregulation of inflammatory mediators through activation of NF-κB.
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Affiliation(s)
- Yaoyao You
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Chunbao Guo
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, P.R. China.,Department of Hepatology and Liver Transplantation Center, Children's Hospital, Chongqing Medical University, Chongqing, P.R. China
| | - Han Zhang
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, P.R. China
| | - Sijun Deng
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, P.R. China
| | - Jia Tang
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Lingqi Xu
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Chun Deng
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, P.R. China
| | - Fang Gong
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, P.R. China
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Li YZ, Chen JH, Tsai CF, Yeh WL. Anti-inflammatory Property of Imperatorin on Alveolar Macrophages and Inflammatory Lung Injury. JOURNAL OF NATURAL PRODUCTS 2019; 82:1002-1008. [PMID: 30892032 DOI: 10.1021/acs.jnatprod.9b00145] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Imperatorin is one of the furanocoumarin derivatives and exists in many medicinal herbs with anticancer, antiviral, antibacterial, and antihypertensive activities. In this study, we examined the anti-inflammatory effects of imperatorin on inflammation-associated lung diseases. Imperatorin reduced iNOS and COX-2 expression and also IL-6 and TNFα production enhanced by zymosan. Imperatorin also inhibited the signaling pathways of JAK/STAT and NF-κB. Moreover, in vivo study also revealed that zymosan-induced immune cell infiltration, pulmonary fibrosis, and edema were relieved by imperatorin in mice. We found that imperatorin exerts anti-inflammatory effects that are associated with amelioration of lung inflammation, edema, and rapid fibrosis. Studies on alveolar macrophages also reveal that imperatorin reduced the production of pro-inflammatory mediators and cytokines and inhibited pro-inflammatory JAK1/STAT3 and NF-κB signaling pathways. These results indicate that imperatorin may be a potential anti-inflammatory agent for inflammatory-associated lung diseases.
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Affiliation(s)
- Ya-Zhen Li
- Department of Biological Science and Technology , China Medical University , No. 91 Hsueh-Shih Road , Taichung , 40402 , Taiwan
| | - Jia-Hong Chen
- Department of General Surgery , Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation , Taichung , 42743 , Taiwan
| | - Cheng-Fang Tsai
- Department of Biotechnology , Asia University , No. 500 Lioufeng Road , Taichung , 41354 , Taiwan
| | - Wei-Lan Yeh
- Institute of New Drug Development , China Medical University , No. 91 Hsueh-Shih Road , Taichung , 40402 , Taiwan
- Research Center for Tumor Medical Science , China Medical University , No. 91 Hsueh-Shih Road , Taichung , 40402 , Taiwan
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Camponogara C, Silva CR, Brusco I, Piana M, Faccin H, de Carvalho LM, Schuch A, Trevisan G, Oliveira SM. Nasturtium officinale R. Br. effectively reduces the skin inflammation induced by croton oil via glucocorticoid receptor-dependent and NF-κB pathways without causing toxicological effects in mice. JOURNAL OF ETHNOPHARMACOLOGY 2019; 229:190-204. [PMID: 30339978 DOI: 10.1016/j.jep.2018.10.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 09/25/2018] [Accepted: 10/09/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Inflammatory skin diseases treatments currently used cause adverse effects. Nasturtium officinale (watercress) is used popularly as an anti-inflammatory. However, until now, no study proved its effectiveness as a topical treatment to inflammatory skin diseases. The topical anti-inflammatory activity of N. officinale crude extract leaves (NoE) on an irritant contact dermatitis (ICD) model croton oil-induced in mice was investigated. MATERIALS AND METHODS ICD models were induced by a single (1 mg/ear; acute) or repeated (0.4 mg/ear; chronic; 9 days total) croton oil application. NoE and dexamethasone solutions' (diluted in acetone; 20 μL/ear) or NoE gel, dexamethasone gel and base gel (15 mg/ear) were topically applied immediately after croton oil application. The NoE topical anti-inflammatory effect was evaluated for inflammatory parameters (ear edema, inflammatory cells infiltration, and inflammatory cytokines levels). NoE topical anti-inflammatory mechanism (NF-κB pathway and effect glucocorticoid-like) were assessed by western blot and ear edema analyses, respectively. UHPLC-MS/MS chromatography, gels accelerated stability and preliminary study of adverse effects was also performed. RESULTS UHPLC-MS/MS of the NoE revealed the presence of coumaric acid, rutin, and ferulic acid. NoE gels stability study showed no relevant changes at low temperature. NoE, dexamethasone, NoE gel and dexamethasone gel inhibited the ear edema croton oil-induced by 82 ± 6% (1 mg/ear), 99 ± 1% (0.1 mg/ear), 81 ± 8% (3%) and 70 ± 6% (0.5%) for the acute model, and 49 ± 7% (1 mg/ear), 80 ± 4% (0.1 mg/ear), 41 ± 8% (3%) and 46 ± 14% (0.5%) for the chronic model, respectively. The same treatments also reduced the inflammatory cells infiltration by 62 ± 3% (1 mg/ear), 97 ± 2% (0.1 mg/ear), 60 ± 3% (3%) and 66 ± 6% (0.5%) for the acute model, respectively, and 25 ± 8% (1 mg/ear) to NoE and 83 ± 13% to dexamethasone to the chronic model. NoE and NoE gel reduced the pro-inflammatory cytokines levels (acute ICD model) by 62 ± 5% and 71 ± 3% (MIP-2) and 32 ± 3% and 44 ± 4% (IL-1β), while dexamethasone solution's and gel reduced by 79 ± 7% and 44 ± 4% to MIP-2 and 98 ± 2% and 83 ± 9% to IL-1β, respectively. NoE' and dexamethasone' solutions inhibited the reduction of IkB-α protein expression induced by croton oil by 100% and 80 ± 14%, respectively. Besides, the mifepristone (glucocorticoid receptor antagonist) pre-treatment prevented the topical anti-edematogenic effect of NoE' and dexamethasone' solutions by 61 ± 5% to NoE and 78 ± 16% to dexamethasone. The repeated topical application of NoE did not cause adverse effects. CONCLUSION Our results suggest the N. officinale use in the cutaneous inflammatory process treatment and demonstrate the NoE potential to develop a promising topical anti-inflammatory agent to treat inflammatory disorders.
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Affiliation(s)
- Camila Camponogara
- Laboratory Neurotoxicity and Psychopharmacology, Graduate Program in Biological Sciences: Toxicological Biochemistry, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Cássia R Silva
- Graduate Program in Genetics and Biochemistry, Institute of Genetics and Biochemistry, Federal University of Uberlandia, Uberlandia, MG, Brazil
| | - Indiara Brusco
- Laboratory Neurotoxicity and Psychopharmacology, Graduate Program in Biological Sciences: Toxicological Biochemistry, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Mariana Piana
- Phytochemical Research Laboratory, Graduate Program in Pharmaceutical Sciences, Health Sciences Center, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Henrique Faccin
- Graduate Program in Chemistry, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Leandro Machado de Carvalho
- Graduate Program in Chemistry, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - André Schuch
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Gabriela Trevisan
- Graduate Program in Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, Camobi, Santa Maria, RS, Brazil
| | - Sara Marchesan Oliveira
- Laboratory Neurotoxicity and Psychopharmacology, Graduate Program in Biological Sciences: Toxicological Biochemistry, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil; Graduate Program in Biological Sciences: Toxicological Biochemistry, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil.
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47
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Loering S, Cameron GJM, Starkey MR, Hansbro PM. Lung development and emerging roles for type 2 immunity. J Pathol 2019; 247:686-696. [PMID: 30506724 DOI: 10.1002/path.5211] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/06/2018] [Accepted: 11/26/2018] [Indexed: 12/12/2022]
Abstract
Lung development is a complex process mediated through the interaction of multiple cell types, factors and mediators. In mice, it starts as early as embryonic day 9 and continues into early adulthood. The process can be separated into five different developmental stages: embryonic, pseudoglandular, canalicular, saccular, and alveolar. Whilst lung bud formation and branching morphogenesis have been studied extensively, the mechanisms of alveolarisation are incompletely understood. Aberrant lung development can lead to deleterious consequences for respiratory health such as bronchopulmonary dysplasia (BPD), a disease primarily affecting preterm neonates, which is characterised by increased pulmonary inflammation and disturbed alveolarisation. While the deleterious effects of type 1-mediated inflammatory responses on lung development have been well established, the role of type 2 responses in postnatal lung development remains poorly understood. Recent studies indicate that type 2-associated immune cells, such as group 2 innate lymphoid cells and alveolar macrophages, are increased in number during postnatal alveolarisation. Here, we present the current state of understanding of the postnatal stages of lung development and the key cell types and mediators known to be involved. We also provide an overview of how stem cells are involved in lung development and regeneration, and the negative influences of respiratory infections. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Svenja Loering
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Guy J M Cameron
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Malcolm R Starkey
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Philip M Hansbro
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia.,Center for Inflammation, Centenary Institute and The School of Life Sciences, University of Technology, Sydney, New South Wales, Australia
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Liu D, Wang Y, Li L, Zhao H, Li L, Liu Y, Jiang H, Li X, Zhang R. Celecoxib Protects Hyperoxia-Induced Lung Injury via NF-κB and AQP1. Front Pediatr 2019; 7:228. [PMID: 31231624 PMCID: PMC6568051 DOI: 10.3389/fped.2019.00228] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 05/21/2019] [Indexed: 12/13/2022] Open
Abstract
Objective: There is an increasing incidence of bronchopulmonary dysplasia (BDP) in preterm infants in China, which is the key issue affecting their survival rate and life quality. This study was performed to better understand the mechanism of protective effect of celecoxib on hyperoxia induced injury. Methods: Hyperoxia BPD model was established using newborn Sprague-Dawley (SD) rats exposed to high O2 level (85%). Celecoxib treatment was also conducted. Histology of lung tissue samples were analyzed. Functional studies were systematically performed using the lung tissues and A549 cells. Results: Hyperoxia disrupted lung development in SD rats. Celecoxib alleviated the damaged lung development. NF-κB and Aquaporin (AQP) 1 were identified as the pathways in the hyperoxia-induced lung injury. We have shown that hyperoxia activated NF-κB pathway through increased nucleus translocation and repressed AQP1 expression. On the contrary, celecoxib inhibited NF-κB phosphorylation and nucleus translocation and increased AQP1 expression through inhibiting COX2 activity. Additionally, celecoxib also rescued apoptosis induced by hyperoxia. Conclusion: Our study identified NF-κB and AQP1 as the pathways in the hyperoxia-induced lung injury in the hyperoxia BPD model SD rats and it provided a better understanding of the protective effect of celecoxib. It suggests NF-κB and AQP1 may be as potential targets for treating newborns with BPD.
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Affiliation(s)
- Dongyun Liu
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Yuguang Wang
- Pediatric Department, Liaocheng City People's Hospital, Liaocheng, China
| | - Lili Li
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Han Zhao
- Department of Pathology, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Liangliang Li
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Yan Liu
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Hong Jiang
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Xianghong Li
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Rui Zhang
- Neonatal Intensive Care Unit, The Affiliated Hospital of QingDao University, Qingdao, China
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Shi F, Xiong Y, Zhang Y, Qiu C, Li M, Shan A, Yang Y, Li B. The Role of TNF Family Molecules Light in Cellular Interaction Between Airway Smooth Muscle Cells and T Cells During Chronic Allergic Inflammation. Inflammation 2018; 41:1021-1031. [PMID: 29460021 DOI: 10.1007/s10753-018-0755-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Interaction between T cells and airway smooth muscle (ASM) cells has been identified as an important factor in the development of asthma. LIGHT (known as TNFSF14) -mediated signaling likely contributes to various inflammatory disorders and airway remodeling. The objective of this study was to investigate the roles of LIGHT-mediated pathways in the interaction between ASM cells and T cells during chronic allergic inflammation. Mice were sensitized and challenged by ovalbumin (OVA) to induce chronic airway allergic inflammation. The control group received PBS only. The histological features and LIGHT expressions in lungs were assessed in vivo. Furthermore, T cells and ASM cells derived from the model mice were co-cultured both in the presence and absence of anti-LIGHT Ab for 72 h. The effects of LIGHT blockade on expressions of downstream signaling molecules, proliferation, and apoptosis of ASM cells, differentiation of T cells, and inflammatory cytokines release were evaluated. We demonstrated that LIGHT blockade strikingly inhibited the mRNA and protein expressions of HVEM, c-JUN, and NFκB. Additionally, LIGHT blockade resulted in decreased proliferation and increased apoptosis of ASM cells. Moreover, depletion of LIGHT dramatically reduced the differentiation of CD4+ T cells into Th1, Th2, and Th17 cells, as well as inhibited inflammatory cytokines release including IL-13, TGF-β, and IFN-γ, which are associated with CD4+ T cell differentiation and ASM cell proliferation. LIGHT plays an important role in the interaction between T cells and ASM cells in chronic allergic asthma. Blockade of LIGHT markedly suppressed ASM hyperplasia and inflammatory responses, which might be modulated through HVEM-NFκB or c-JUN pathways. Therefore, targeting LIGHT is a promising therapeutic strategy for airway inflammation and remodeling in chronic allergic asthma.
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Affiliation(s)
- Fei Shi
- Emergency Department, The Second Clinical College, Shenzhen People's Hospital, Jinan University, NO.1017 Dongmen North Road, Shenzhen, 518020, China.
| | - Yi Xiong
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, The Hong Kong University of Science and Technology Medical Center, Shenzhen Peking University, Shenzhen, 518036, China
| | - Yarui Zhang
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, The Hong Kong University of Science and Technology Medical Center, Shenzhen Peking University, Shenzhen, 518036, China
| | - Chen Qiu
- Pulmonary Department, The Second Clinical College, Shenzhen People's Hospital, Jinan University, NO. 1017 Dongmen North Road, Shenzhen, 518020, China
| | - Manhui Li
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, The Hong Kong University of Science and Technology Medical Center, Shenzhen Peking University, Shenzhen, 518036, China
| | - Aijun Shan
- Emergency Department, The Second Clinical College, Shenzhen People's Hospital, Jinan University, NO.1017 Dongmen North Road, Shenzhen, 518020, China
| | - Ying Yang
- Emergency Department, The Second Clinical College, Shenzhen People's Hospital, Jinan University, NO.1017 Dongmen North Road, Shenzhen, 518020, China
| | - Binbin Li
- Emergency Department, The Second Clinical College, Shenzhen People's Hospital, Jinan University, NO.1017 Dongmen North Road, Shenzhen, 518020, China
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Zhang X, Wang T, Yuan ZC, Dai LQ, Zeng N, Wang H, Liu L, Wen FQ. Mitochondrial peptides cause proinflammatory responses in the alveolar epithelium via FPR-1, MAPKs, and AKT: a potential mechanism involved in acute lung injury. Am J Physiol Lung Cell Mol Physiol 2018; 315:L775-L786. [PMID: 30188748 DOI: 10.1152/ajplung.00466.2017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Acute lung injury (ALI) is characterized by alveolar epithelial damage and uncontrolled pulmonary inflammation. Mitochondrial damage-associated molecular patterns (DAMPs), including mitochondrial peptides [ N-formyl peptides (NFPs)], are released during cell injury and death and induce inflammation by unclear mechanisms. In this study, we have investigated the role of mitochondrial DAMPs (MTDs), especially NFPs, in alveolar epithelial injury and lung inflammation. In murine models of ALI, high levels of mitochondrial NADH dehydrogenase 1 in bronchoalveolar lavage fluid (BALF) were associated with lung injury scores and increased formyl peptide receptor (FPR)-1 expression in the alveolar epithelium. Cyclosporin H (CsH), a specific inhibitor of FPR1, inhibited lung inflammation in the ALI models. Both MTDs and NFPs upon intratracheal challenge caused accumulation of neutrophils into the alveolar space with elevated BALF levels of mouse chemokine KC, interleukin-1β, and nitric oxide and increased pulmonary FPR-1 levels. CsH significantly attenuated MTDs or NFP-induced inflammatory lung injury and activation of MAPK and AKT pathways. FPR1 expression was present in rat primary alveolar epithelial type II cells (AECIIs) and was increased by MTDs. CsH inhibited MTDs or NFP-induced CINC-1/IL-8 release and phosphorylation of p38, JNK, and AKT in rat AECII and human cell line A549. Inhibitors of MAPKs and AKT also suppressed MTD-induced IL-8 release and NF-κB activation. Collectively, our data indicate an important role of the alveolar epithelium in initiating immune responses to MTDs released during ALI. The potential mechanism may involve increase of IL-8 production in MTD-activated AECII through FPR-1 and its downstream MAPKs, AKT, and NF-κB pathways.
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Affiliation(s)
- Xue Zhang
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University , Chengdu , China.,Luoyang Orthopedic Hospital of Henan Province, Orthopedic Hospital of Henan Province , Luoyang , China
| | - Tao Wang
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University , Chengdu , China
| | - Zhi-Cheng Yuan
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University , Chengdu , China
| | - Lu-Qi Dai
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University , Chengdu , China
| | - Ni Zeng
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University , Chengdu , China
| | - Hao Wang
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University , Chengdu , China
| | - Lian Liu
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University , Chengdu , China
| | - Fu-Qiang Wen
- Division of Pulmonary Diseases, State Key Laboratory of Biotherapy of China and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University , Chengdu , China
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