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Koike A, Hayashi K, Fujimori K. Involvement of necroptotic cell death in macrophages in progression of bleomycin and LPS-induced acute exacerbation of idiopathic pulmonary fibrosis. Eur J Pharmacol 2024; 972:176572. [PMID: 38614381 DOI: 10.1016/j.ejphar.2024.176572] [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: 12/30/2023] [Revised: 03/26/2024] [Accepted: 04/09/2024] [Indexed: 04/15/2024]
Abstract
Idiopathic pulmonary fibrosis (IPF) is the severe form of interstitial pneumonias. Acute exacerbation (AE) of IPF is characterized by progressive lung fibrosis with the irreversible lung function decline and inflammation, and is often fatal with poor prognosis. However, the physiological and molecular mechanisms in AE of IPF are still not fully understood. In this study, we investigated the mechanism underlying AE of IPF, using bleomycin (BLM) and lipopolysaccharide (LPS) (BLM + LPS)-treated mice. The mice were treated with a single dose of 1.5 mg/kg BLM (on day 0) and/or 0.5 mg/kg LPS (on day 14), and maintained for another 7 days (total 21 days). Administration of BLM + LPS more severely aggravated the respiratory function, fibrosis, and inflammation in the lungs, together with the elevated interleukin-6 level in bronchoalveolar lavage fluid, than the control or BLM alone-treated mice. Moreover, the terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) assay demonstrated that subsequent treatment with LPS elevated cell death in the lungs of BLM-administered mice. Furthermore, the expression levels of mixed lineage kinase domain-like protein (MLKL), a marker of necroptotic cell death, and CD68-positive macrophages were increased, and most of them were co-stained in the lungs of BLM + LPS-treated mice. These results, taken together, indicate that BLM + LPS treatment showed more exacerbated the respiratory function with extensive fibrosis and inflammation than treatment with BLM alone in mice. Fibrosis and inflammation in AE of IPF seen in BLM + LPS-administered mice included an increase in macrophages and their necroptotic cell death.
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Affiliation(s)
- Atsushi Koike
- Department of Pathobiochemistry, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Kaoruko Hayashi
- Department of Pathobiochemistry, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Ko Fujimori
- Department of Pathobiochemistry, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan.
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2
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Cheng HP, Bao XW, Luo YY, Li YH, Zhou Y, Hua QZ, Qiu YJ, Liang XY, Huang YH, Liu W, Tang SY, Feng DD, Li C, Luo ZQ. Sulfasalazine ameliorates lipopolysaccharide-induced acute lung injury by inhibiting oxidative stress and nuclear factor-kappaB pathways. Int J Biochem Cell Biol 2024; 169:106530. [PMID: 38246263 DOI: 10.1016/j.biocel.2024.106530] [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: 09/22/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 01/23/2024]
Abstract
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) has a high mortality rate and incidence of complications. The pathophysiology of ALI/ARDS is still not fully understood. The lipopolysaccharide (LPS)-induced mouse model of ALI has been widely used to study human ALI/ARDS. Sulfasalazine (SASP) has antibacterial and anti-inflammatory effects and is used for treating inflammatory bowel and rheumatic diseases. However, the effect of SASP on LPS-induced ALI in mice has not yet been reported. Therefore, we aimed to investigate the effect of SASP on LPS-induced ALI in mice. Mice were intraperitoneally injected with SASP 2 h before or 4 h after LPS modeling. Pulmonary pathological damage was measured based on inflammatory factor expression (malondialdehyde and superoxide dismutase levels) in the lung tissue homogenate and alveolar lavage fluid. The production of inflammatory cytokines and occurrence of oxidative stress in the lungs induced by LPS were significantly mitigated after the prophylactic and long-term therapeutic administration of SASP, which ameliorated ALI caused by LPS. SASP reduced both the production of inflammatory cytokines and occurrence of oxidative stress in RAW264.7 cells, which respond to LPS. Moreover, its mechanism contributed to the suppression of NF-κB and nuclear translocation. In summary, SASP treatment ameliorates LPS-induced ALI by mediating anti-inflammatory and antioxidant effects, which may be attributed to the inhibition of NF-κB activation and promotion of antioxidant defenses. Thus, SASP may be a promising pharmacologic agent for ALI therapy.
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Affiliation(s)
- Hai-Peng Cheng
- Department of Pathology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xing-Wen Bao
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yong-Yu Luo
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yang-Hang Li
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yan Zhou
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Qing-Zhong Hua
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Yu-Jia Qiu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xin-Yue Liang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yan-Hong Huang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Wei Liu
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Si-Yuan Tang
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Dan-Dan Feng
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Chen Li
- Department of Physiology, Changzhi Medical College, Changzhi, Shanxi, China.
| | - Zi-Qiang Luo
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China; Hunan Key Laboratory of Organ Fibrosis, Central South University, Changsha, Hunan, China.
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3
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Wang H, Yip KH, Keam SP, Vlahos R, Nichol K, Wark P, Toubia J, Kral AC, Cildir G, Pant H, Hercus TR, Wilson N, Owczarek C, Lopez AF, Bozinovski S, Tumes DJ. Dual inhibition of airway inflammation and fibrosis by common β cytokine receptor blockade. J Allergy Clin Immunol 2024; 153:672-683.e6. [PMID: 37931708 DOI: 10.1016/j.jaci.2023.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 09/11/2023] [Accepted: 10/12/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND Patients with severe asthma can present with eosinophilic type 2 (T2), neutrophilic, or mixed inflammation that drives airway remodeling and exacerbations and represents a major treatment challenge. The common β (βc) receptor signals for 3 cytokines, GM-CSF, IL-5, and IL-3, which collectively mediate T2 and neutrophilic inflammation. OBJECTIVE To determine the pathogenesis of βc receptor-mediated inflammation and remodeling in severe asthma and to investigate βc antagonism as a therapeutic strategy for mixed granulocytic airway disease. METHODS βc gene expression was analyzed in bronchial biopsy specimens from patients with mild-to-moderate and severe asthma. House dust mite extract and Aspergillus fumigatus extract (ASP) models were used to establish asthma-like pathology and airway remodeling in human βc transgenic mice. Lung tissue gene expression was analyzed by RNA sequencing. The mAb CSL311 targeting the shared cytokine binding site of βc was used to block βc signaling. RESULTS βc gene expression was increased in patients with severe asthma. CSL311 potently reduced lung neutrophils, eosinophils, and interstitial macrophages and improved airway pathology and lung function in the acute steroid-resistant house dust mite extract model. Chronic intranasal ASP exposure induced airway inflammation and fibrosis and impaired lung function that was inhibited by CSL311. CSL311 normalized the ASP-induced fibrosis-associated extracellular matrix gene expression network and strongly reduced signatures of cellular inflammation in the lung. CONCLUSIONS βc cytokines drive steroid-resistant mixed myeloid cell airway inflammation and fibrosis. The anti-βc antibody CSL311 effectively inhibits mixed T2/neutrophilic inflammation and severe asthma-like pathology and reverses fibrosis gene signatures induced by exposure to commonly encountered environmental allergens.
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Affiliation(s)
- Hao Wang
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Australia
| | - Kwok Ho Yip
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia
| | - Simon P Keam
- Research and Development, CSL Limited, Bio21 Molecular Science and Biotechnology Institute, Parkville, Australia
| | - Ross Vlahos
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Australia
| | - Kristy Nichol
- Immune Health Research Program, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia; Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, Australia
| | - Peter Wark
- Immune Health Research Program, Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia; Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, Australia
| | - John Toubia
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia
| | - Anita C Kral
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia
| | - Gökhan Cildir
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia
| | - Harshita Pant
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia; Faculty of Medicine, University of Adelaide, Adelaide, Australia
| | - Timothy R Hercus
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia
| | - Nick Wilson
- Research and Development, CSL Limited, Bio21 Molecular Science and Biotechnology Institute, Parkville, Australia
| | - Catherine Owczarek
- Research and Development, CSL Limited, Bio21 Molecular Science and Biotechnology Institute, Parkville, Australia
| | - Angel F Lopez
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia; Faculty of Medicine, University of Adelaide, Adelaide, Australia
| | - Steven Bozinovski
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Australia.
| | - Damon J Tumes
- Centre for Cancer Biology, SA Pathology and the University of South Australia, Adelaide, Australia.
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Sababathy M, Ramanathan G, Abd Rahaman NY, Ramasamy R, Biau FJ, Qi Hao DL, Hamid NFS. A 'one stone, two birds' approach with mesenchymal stem cells for acute respiratory distress syndrome and Type II diabetes mellitus. Regen Med 2023; 18:913-934. [PMID: 38111999 DOI: 10.2217/rme-2023-0193] [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] [Indexed: 12/20/2023] Open
Abstract
This review explores the intricate relationship between acute respiratory distress syndrome (ARDS) and Type II diabetes mellitus (T2DM). It covers ARDS epidemiology, etiology and pathophysiology, along with current treatment trends and challenges. The lipopolysaccharides (LPS) role in ARDS and its association between non-communicable diseases and COVID-19 are discussed. The review highlights the therapeutic potential of human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) for ARDS and T2DM, emphasizing their immunomodulatory effects. This review also underlines how T2DM exacerbates ARDS pathophysiology and discusses the potential of hUC-MSCs in modulating immune responses. In conclusion, the review highlights the multidisciplinary approach to managing ARDS and T2DM, focusing on inflammation, oxidative stress and potential therapy of hUC-MSCs in the future.
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Affiliation(s)
- Mogesh Sababathy
- Department of Veterinary Pathology & Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Ghayathri Ramanathan
- Faculty of Computer Science & Information Technology, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Nor Yasmin Abd Rahaman
- Department of Veterinary Laboratory Diagnostics, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Laboratory of Vaccines & Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Rajesh Ramasamy
- Department of Pathology, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Foo Jhi Biau
- Centre for Drug Discovery & Molecular Pharmacology (CDDMP), Faculty of Health & Medical Sciences, Taylor's University, Selangor, Subang Jaya, 47500, Malaysia
- School of Pharmacy, Faculty of Health & Medical Sciences, Taylor's University, Selangor, Subang Jaya, 47500, Malaysia
| | - Daniel Looi Qi Hao
- My Cytohealth Sdn. Bhd., 18-2, Jalan Radin Bagus 1, Bandar Seri Petaling, Kuala Lumpur, 57000, Malaysia
| | - Nur-Fazila Saulol Hamid
- Department of Veterinary Pathology & Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Laboratory of Vaccines & Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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5
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Zerikiotis S, Efentakis P, Dapola D, Agapaki A, Seiradakis G, Kostomitsopoulos N, Skaltsounis AL, Tseti I, Triposkiadis F, Andreadou I. Synergistic Pulmonoprotective Effect of Natural Prolyl Oligopeptidase Inhibitors in In Vitro and In Vivo Models of Acute Respiratory Distress Syndrome. Int J Mol Sci 2023; 24:14235. [PMID: 37762537 PMCID: PMC10531912 DOI: 10.3390/ijms241814235] [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: 08/23/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a highly morbid inflammatory lung disease with limited pharmacological interventions. The present study aims to evaluate and compare the potential pulmonoprotective effects of natural prolyl oligopeptidase (POP) inhibitors namely rosmarinic acid (RA), chicoric acid (CA), epigallocatechin-3-gallate (EGCG) and gallic acid (GA), against lipopolysaccharide (LPS)-induced ARDS. Cell viability and expression of pro-inflammatory mediators were measured in RAW264.7 cells and in primary murine lung epithelial and bone marrow cells. Nitric oxide (NO) production was also assessed in unstimulated and LPS-stimulated RAW264.7 cells. For subsequent in vivo experiments, the two natural products (NPs) with the most favorable effects, RA and GA, were selected. Protein, cell content and lipid peroxidation levels in bronchoalveolar lavage fluid (BALF), as well as histopathological changes and respiratory parameters were evaluated in LPS-challenged mice. Expression of key mediators involved in ARDS pathophysiology was detected by Western blotting. RA and GA favorably reduced gene expression of pro-inflammatory mediators in vitro, while GA decreased NO production in macrophages. In LPS-challenged mice, RA and GA co-administration improved respiratory parameters, reduced cell and protein content and malondialdehyde (MDA) levels in BALF, decreased vascular cell adhesion molecule-1 (VCAM-1) and the inducible nitric oxide synthase (iNOS) protein expression, activated anti-apoptotic mechanisms and down-regulated POP in the lung. Conclusively, these synergistic pulmonoprotective effects of RA and GA co-administration could render them a promising prophylactic/therapeutic pharmacological intervention against ARDS.
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Affiliation(s)
- Stelios Zerikiotis
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, 157 71 Athens, Greece; (S.Z.); (P.E.); (D.D.); (G.S.)
| | - Panagiotis Efentakis
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, 157 71 Athens, Greece; (S.Z.); (P.E.); (D.D.); (G.S.)
| | - Danai Dapola
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, 157 71 Athens, Greece; (S.Z.); (P.E.); (D.D.); (G.S.)
| | - Anna Agapaki
- Histochemistry Facility, Biomedical Research Foundation of the Academy of Athens, 115 27 Athens, Greece;
| | - Georgios Seiradakis
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, 157 71 Athens, Greece; (S.Z.); (P.E.); (D.D.); (G.S.)
| | - Nikolaos Kostomitsopoulos
- Laboratory Animal Facility, Centre of Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, 115 27 Athens, Greece;
| | - Alexios-Leandros Skaltsounis
- Section of Pharmacognosy and Natural Product Chemistry Faculty of Pharmacy, National and Kapodistrian University of Athens, 157 71 Athens, Greece;
| | | | - Filippos Triposkiadis
- Department of Cardiology, University General Hospital of Larissa, 413 34 Larissa, Greece;
- Faculty of Health Sciences, University of Thessaly, 413 34 Larissa, Greece
| | - Ioanna Andreadou
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, 157 71 Athens, Greece; (S.Z.); (P.E.); (D.D.); (G.S.)
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6
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Alan E, Daldaban F, Alan A, Aksel EG, Orhan İ, Ulaş Çinar M, Akyüz B, Arslan K. TLR4, MyD88, and TNF-α Expression in the Lungs of Akkaraman and Romanov Lambs in Response to LPS and LTA. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2023; 29:1488-1502. [PMID: 37488827 DOI: 10.1093/micmic/ozad071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/19/2023] [Accepted: 06/18/2023] [Indexed: 07/26/2023]
Abstract
Toll-like receptors are involved in the recognition of bacterial toxins, which cause infection in the respiratory system. This study aimed to evaluate microanatomical and histological alterations in the lungs of 24 healthy Akkaraman and Romanov lambs after the administration of lipoteichoic acid (LTA), lipopolysaccharide (LPS), and LTA + LPS and investigate the gene, protein, and immune expression levels of TLR4, MyD88, and TNF-α molecules, known to have immune functions. Microanatomical examinations showed thickened peribronchial and alveolar walls in the lungs of groups LTA, LPS, and LTA + LPS of both breeds due to immune cell infiltration. TLR4, MyD88, and TNF-α immunoexpressions were positive to varying degrees in the cytoplasm and nucleus of the bronchial and bronchiolar luminal epithelial cells, alveolar epithelial cells, and alveolar macrophages. TLR4 and TNF-α protein expressions were statistically different in the LPS-treated Romanov lambs, compared to the other groups. Among the Akkaraman lambs, TLR4 gene expression was significantly higher in group LPS, and among the Romanov lambs, TLR4, MyD88, and TNF-α gene expressions were significantly higher in group LTA + LPS. Therefore, TLR4, MyD88, and TNF-α molecules, involved in the immune response, were found to be expressed at different levels against LTA and LPS in the lungs of two different sheep breeds.
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Affiliation(s)
- Emel Alan
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Erciyes University, 38039 Kayseri, Turkey
| | - Fadime Daldaban
- Department of Genetics, Faculty of Veterinary Medicine, Erciyes University, 38039 Kayseri, Turkey
| | - Aydın Alan
- Department of Anatomy, Faculty of Veterinary Medicine, Erciyes University, 38039 Kayseri, Turkey
| | - Esma Gamze Aksel
- Department of Genetics, Faculty of Veterinary Medicine, Erciyes University, 38039 Kayseri, Turkey
| | - İmdat Orhan
- Department of Anatomy, Faculty of Veterinary Medicine, Erciyes University, 38039 Kayseri, Turkey
| | - Mehmet Ulaş Çinar
- Department of Animal Science, Faculty of Agriculture, Erciyes University, 38039 Kayseri, Turkey
- Department of Veterinary Microbiology & Pathology, Washington State University, Pullman, WA 99164, USA
| | - Bilal Akyüz
- Department of Genetics, Faculty of Veterinary Medicine, Erciyes University, 38039 Kayseri, Turkey
| | - Korhan Arslan
- Department of Genetics, Faculty of Veterinary Medicine, Erciyes University, 38039 Kayseri, Turkey
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7
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Shuster-Hyman H, Siddiqui F, Gallagher D, Gauthier-Fisher A, Librach CL. Time course and mechanistic analysis of human umbilical cord perivascular cell mitigation of lipopolysaccharide-induced systemic and neurological inflammation. Cytotherapy 2023; 25:125-137. [PMID: 36473795 DOI: 10.1016/j.jcyt.2022.10.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 10/11/2022] [Accepted: 10/20/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND AIMS Because of their potent immunomodulatory and anti-inflammatory properties, mesenchymal stromal cells are a major focus in the field of stem cell therapy. However, the precise mechanisms underlying this are not entirely understood. Human umbilical cord perivascular cells (HUCPVCs) are a promising cell therapy candidate. This study was designed to evaluate the time course and mechanisms by which HUCPVCs mitigate lipopolysaccharide (LPS)-induced systemic and neurological inflammation in immunocompetent mice. To explore the underlying mechanisms, the authors investigated the biodistribution and fate of HUCPVCs. METHODS Male C57BL/6 mice were randomly allocated to four groups: control, LPS, HUCPVCs or LPS + HUCPVCs. Quantitative polymerase chain reaction, enzyme-linked immunosorbent assay and cytokine arrays were used to assess changes in pro-inflammatory mediators systemically and in the brain. Depressive-like behavioral changes were evaluated via a forced swim test. Quantum dot (qDot) labeling and immunohistochemistry were used to assess the biodistribution and fate of HUCPVCs and interactions with recipient innate immune cells. RESULTS A single intravenously delivered dose of HUCPVCs significantly reduced the systemic inflammation induced by LPS within the first 24 h after administration. HUCPVC treatment abrogated the upregulated expression of pro-inflammatory genes in the hippocampus and cortex and attenuated depressive-like behavior induced by LPS treatment. Biodistribution analysis revealed that HUCPVC-derived qDots rapidly accumulated in the lungs and demonstrated limited in vivo persistence. Furthermore, qDot signals were associated with major recipient innate immune cells and promoted a shift in macrophages toward a regulatory phenotype in the lungs. CONCLUSIONS Overall, this study demonstrates that HUCPVCs can successfully reduce systemic and neurological inflammation induced by LPS within the first 24 h after administration. Biodistribution and fate analyses suggest a critical role for the innate immune system in the HUCPVC-based immunomodulation mechanism.
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Affiliation(s)
- Hannah Shuster-Hyman
- CReATe Fertility Center, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | | | | | | | - Clifford L Librach
- CReATe Fertility Center, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada; Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada; Department of Physiology, University of Toronto, Toronto, Ontario, Canada.
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8
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Sivaraman K, Wrenger S, Liu B, Schaudien D, Hesse C, Gomez-Mariano G, Perez-Luz S, Sewald K, DeLuca D, Wurm MJ, Pino P, Welte T, Martinez-Delgado B, Janciauskiene S. Mice inflammatory responses to inhaled aerosolized LPS: effects of various forms of human alpha1-antitrypsin. J Leukoc Biol 2023; 113:58-70. [PMID: 36822165 DOI: 10.1093/jleuko/qiac004] [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: 03/10/2022] [Indexed: 01/12/2023] Open
Abstract
Rodent models of lipopolysaccharide (LPS)-induced pulmonary inflammation are used for anti-inflammatory drug testing. We aimed to characterize mice responses to aerosolized LPS alone or with intraperitoneal (i.p.) delivery of alpha1-antitrypsin (AAT). Balb/c mice were exposed to clean air or aerosolized LPS (0.21 mg/mL) for 10 min per day, for 3 d. One hour after each challenge, animals were treated i.p. with saline or with (4 mg/kg body weight) one of the AAT preparations: native (AAT), oxidized (oxAAT), recombinant (recAAT), or peptide of AAT (C-36). Experiments were terminated 6 h after the last dose of AATs. Transcriptome data of mice lungs exposed to clean air versus LPS revealed 656 differentially expressed genes and 155 significant gene ontology terms, including neutrophil migration and toll-like receptor signaling pathways. Concordantly, mice inhaling LPS showed higher bronchoalveolar lavage fluid neutrophil counts and levels of myeloperoxidase, inducible nitric oxide synthase, IL-1β, TNFα, KC, IL-6, and granulocyte-macrophage colony-stimulating factor (GM-CSF). Plasma inflammatory markers did not increase. After i.p. application of AATs, about 1% to 2% of proteins reached the lungs but, except for GM-CSF, none of the proteins significantly influenced inflammatory markers. All AATs and C-36 significantly inhibited LPS-induced GM-CSF release. Surprisingly, only oxAAT decreased the expression of several LPS-induced inflammatory genes, such as Cxcl3, Cd14, Il1b, Nfkb1, and Nfkb2, in lung tissues. According to lung transcriptome data, oxAAT mostly affected genes related to transcriptional regulation while native AAT or recAAT affected genes of inflammatory pathways. Hence, we present a feasible mice model of local lung inflammation induced via aerosolized LPS that can be useful for systemic drug testing.
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Affiliation(s)
- Kokilavani Sivaraman
- Department of Pulmonary and Infectious Diseases and BREATH German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany
| | - Sabine Wrenger
- Department of Pulmonary and Infectious Diseases and BREATH German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany
| | - Bin Liu
- Department of Pulmonary and Infectious Diseases and BREATH German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany
| | - Dirk Schaudien
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Christina Hesse
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany.,Fraunhofer Cluster of Excellence Immune-Mediated Diseases CIMD, Hannover, Germany
| | - Gema Gomez-Mariano
- Molecular Genetics, Institute of Rare Diseases Research, Institute of Health Carlos III (ISCIII), Centro de Investigacion Biomedica en red de Enfermedades Raras, U758 (CIBERER), Majadahonda, Spain
| | - Sara Perez-Luz
- Molecular Genetics, Institute of Rare Diseases Research, Institute of Health Carlos III (ISCIII), Centro de Investigacion Biomedica en red de Enfermedades Raras, U758 (CIBERER), Majadahonda, Spain
| | - Katherina Sewald
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - David DeLuca
- Department of Pulmonary and Infectious Diseases and BREATH German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany
| | | | | | - Tobias Welte
- Department of Pulmonary and Infectious Diseases and BREATH German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany
| | - Beatriz Martinez-Delgado
- Molecular Genetics, Institute of Rare Diseases Research, Institute of Health Carlos III (ISCIII), Centro de Investigacion Biomedica en red de Enfermedades Raras, U758 (CIBERER), Majadahonda, Spain
| | - Sabina Janciauskiene
- Department of Pulmonary and Infectious Diseases and BREATH German Center for Lung Research (DZL), Hannover Medical School, Hannover, Germany.,Department of Genetics and Clinical Immunology, National Institute of Tuberculosis and Lung Diseases, Warsaw, Poland
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9
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Zhu W, Luo W, Han J, Zhang Q, Ji L, Samorodov AV, Pavlov VN, Zhuang Z, Yang D, Yin L, Huang L, Liang G, Huh JY, Wang Y. Schisandrin B protects against LPS-induced inflammatory lung injury by targeting MyD88. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 108:154489. [PMID: 36270224 DOI: 10.1016/j.phymed.2022.154489] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 09/25/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Acute lung injury (ALI) is a challenging clinical syndrome that manifests as an acute inflammatory response. Schisandrin B (Sch B), a bioactive lignan from Schisandra genus plants, has been shown to suppress inflammatory responses and oxidative stress. However, the underlying molecular mechanisms have remained elusive. HYPOTHESIS/PURPOSE This study performed an in-depth investigation of the anti-inflammatory mechanism of Sch B in macrophages and in an animal model of ALI. METHODS qPCR array was used to probe the differential effects and potential target of Sch B. ALI was induced by intratracheal administration of LPS in experimental mice with or without Sch B treatment. RESULTS Our studies show that Sch B differentially modulates inflammatory factor induction by LPS in macrophages by directly binding myeloid differentiation response factor-88 (MyD88), an essential adaptor protein in the toll-like receptor-4 (TLR4) pathway. Sch B spares non-MyD88-pathways downstream of TLR4. Such inhibition suppressed key signaling mediators such as TAK1, MAPKs, and NF-κB, and pro-inflammatory factor induction. Pull down assay using biotinylated-Sch B validate the direct interaction between Sch B and MyD88 in macrophages. Treatment of mice with Sch B prior to LPS challenge reduced inflammatory cell infiltration in lungs, induction of MyD88-pathway signaling proteins, and prevented inflammatory cytokine induction. CONCLUSION In summary, our studies have identified MyD88 as a direct target of Sch B for its anti-inflammatory activity, and suggest that Sch B may have therapeutic value for acute lung injury and other MyD88-dependent inflammatory diseases.
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Affiliation(s)
- Weiwei Zhu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; College of Pharmacy, Chonnam National University, Gwangju 61186, Republic of Korea; Affiliated Xiangshan Hospital of Wenzhou Medial University (Xiangshan First People's Hospital Medical and Health Group), Xiangshan, Zhejiang 315799, China
| | - Wu Luo
- Medical Research Center, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Jibo Han
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Qiuyan Zhang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Lijun Ji
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; College of Pharmacy, Chonnam National University, Gwangju 61186, Republic of Korea
| | | | - Valentin N Pavlov
- Department of Pharmacology, Bashkir State Medical University, Ufa 450005, Russia
| | - Zaishou Zhuang
- The Affiliated Cangnan Hospital, Wenzhou Medical University, Cangnan, Zhejiang 325800, China
| | - Daona Yang
- The Affiliated Cangnan Hospital, Wenzhou Medical University, Cangnan, Zhejiang 325800, China
| | - Lina Yin
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
| | - Lijiang Huang
- Affiliated Xiangshan Hospital of Wenzhou Medial University (Xiangshan First People's Hospital Medical and Health Group), Xiangshan, Zhejiang 315799, China
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; The Affiliated Cangnan Hospital, Wenzhou Medical University, Cangnan, Zhejiang 325800, China
| | - Joo Young Huh
- College of Pharmacy, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - Yi Wang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; College of Pharmacy, Chonnam National University, Gwangju 61186, Republic of Korea; Affiliated Xiangshan Hospital of Wenzhou Medial University (Xiangshan First People's Hospital Medical and Health Group), Xiangshan, Zhejiang 315799, China.
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10
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Bao J, Zha Y, Chen S, Yuan J, Qiao J, Cao L, Yang Q, Liu M, Shao M. The importance of serum LMAN2 level in septic shock and prognosis prediction in sepsis patients. Heliyon 2022; 8:e11409. [PMID: 36387495 PMCID: PMC9647472 DOI: 10.1016/j.heliyon.2022.e11409] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 10/06/2022] [Accepted: 10/31/2022] [Indexed: 11/08/2022] Open
Abstract
Objectives To study the importance of LMAN2 in septic shock and prognosis prediction in sepsis patients. Methods Serum LMAN2 was measured by ELISA in 109 sepsis patients within 24 h after their admission to ICU. We also collected clinical and laboratory variables. Results Compared with sepsis group (1.21 (1.05) ng/ml), serum LMAN2 level was significantly higher in patients with septic shock (1.75 (2.04) ng/ml) on the day of admission to the ICU (P < 0.001), and serum LMAN2 level were significantly higher in the sepsis non-survival group (1.91 (1.66) ng/ml) than in the survival group (1.15 (1.17) ng/ml). COX regression analysis showed that high serum LMAN2 level (>1.28 ng/ml) was a predictor of 28-day mortality in sepsis patients. Conclusions This study shows that high serum LMAN2 level may indicate septic shock and is associated with an unfavorable prognosis for sepsis patients.
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Affiliation(s)
- Junjie Bao
- Department of Critical Medicine, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yutao Zha
- Department of Critical Medicine, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Shi Chen
- Department of Critical Medicine, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jun Yuan
- Department of Critical Medicine, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jiejie Qiao
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Limian Cao
- Department of Critical Medicine, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Qigang Yang
- Department of Critical Medicine, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Miao Liu
- Parasite Teaching and Research Office, College of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
- Corresponding author.
| | - Min Shao
- Department of Critical Medicine, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Corresponding author.
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11
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Mohammed RUR, Zollinger NT, McCain AR, Romaguera‐Matas R, Harris SP, Buesing KL, Borden MA, Terry BS. Testing oxygenated microbubbles via intraperitoneal and intrathoracic routes on a large pig model of LPS-induced acute respiratory distress syndrome. Physiol Rep 2022; 10:e15451. [PMID: 36065853 PMCID: PMC9446406 DOI: 10.14814/phy2.15451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/10/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023] Open
Abstract
With a mortality rate of 46% before the onset of COVID-19, acute respiratory distress syndrome (ARDS) affected 200,000 people in the US, causing 75,000 deaths. Mortality rates in COVID-19 ARDS patients are currently at 39%. Extrapulmonary support for ARDS aims to supplement mechanical ventilation by providing life-sustaining oxygen to the patient. A new rapid-onset, human-sized pig ARDS model in a porcine intensive care unit (ICU) was developed. The pigs were nebulized intratracheally with a high dose (4 mg/kg) of the endotoxin lipopolysaccharide (LPS) over a 2 h duration to induce rapid-onset moderate-to-severe ARDS. They were then catheterized to monitor vitals and to evaluate the therapeutic effect of oxygenated microbubble (OMB) therapy delivered by intrathoracic (IT) or intraperitoneal (IP) administration. Post-LPS administration, the PaO2 value dropped below 70 mmHg, the PaO2 /FiO2 ratio dropped below 200 mmHg, and the heart rate increased, indicating rapidly developing (within 4 h) moderate-to-severe ARDS with tachycardia. The SpO2 and PaO2 of these LPS-injured pigs did not show significant improvement after OMB administration, as they did in our previous studies of the therapy on small animal models of ARDS injury. Furthermore, pigs receiving OMB or saline infusions had slightly lower survival than their ARDS counterparts. The OMB administration did not induce a statistically significant or clinically relevant therapeutic effect in this model; instead, both saline and OMB infusion appeared to lower survival rates slightly. This result is significant because it contradicts positive results from our previous small animal studies and places a limit on the efficacy of such treatments for larger animals under more severe respiratory distress. While OMB did not prove efficacious in this rapid-onset ARDS pig model, it may retain potential as a novel therapy for the usual presentation of ARDS in humans, which develops and progresses over days to weeks.
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Affiliation(s)
- Riaz Ur Rehman Mohammed
- Biomedical Engineering Program, Department of Mechanical and Material EngineeringUniversity of Nebraska‐LincolnLincolnNebraskaUSA
| | - Nathaniel T. Zollinger
- Biomedical Engineering Program, Department of Mechanical and Material EngineeringUniversity of Nebraska‐LincolnLincolnNebraskaUSA
| | - Andrea R. McCain
- Institutional Animal Care Program, Office of Research & Economic DevelopmentUniversity of Nebraska – LincolnLincolnNebraskaUSA
| | - Roser Romaguera‐Matas
- Institutional Animal Care Program, Office of Research & Economic DevelopmentUniversity of Nebraska – LincolnLincolnNebraskaUSA
| | - Seth P. Harris
- School of Veterinary Medicine and Biomedical SciencesUniversity of Nebraska – Lincoln Institute of Agriculture and Natural ResourcesLincolnNebraskaUSA
| | - Keely L. Buesing
- Department of SurgeryUniversity of Nebraska Medical CenterOmahaNebraskaUSA
| | - Mark A. Borden
- Biomedical Engineering ProgramUniversity of ColoradoBoulderColoradoUSA
| | - Benjamin S. Terry
- Biomedical Engineering Program, Department of Mechanical and Material EngineeringUniversity of Nebraska‐LincolnLincolnNebraskaUSA
- Department of Mechanical EngineeringBrigham Young UniversityProvoUtahUSA
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12
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Khadangi F, Tremblay-Pitre S, Dufour-Mailhot A, Rojas-Ruiz AB, Boucher M, Henry C, Fereydoonzad L, Brunet D, Robichaud A, Bossé Y. Sensitive physiological readouts to evaluate countermeasures for lipopolysaccharide-induced lung alterations in mice. Am J Physiol Lung Cell Mol Physiol 2022; 323:L107-L120. [PMID: 35670484 DOI: 10.1152/ajplung.00073.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Despite decades of research, studies investigating the physiological alterations caused by an acute bout of inflammation induced by exposing the lung to lipopolysaccharide have yielded inconsistent results. This can be attributed to small effects and/or a lack of fitted physiological testing. Herein, a comprehensive investigation of lung mechanics was conducted in 270 male C57BL/6 mice at 24, 48 or 96 h after an intranasal exposure to saline or lipopolysaccharide at either 1 or 3 mg/kg (30 mice per group). Traditional techniques that probe the lung using small-amplitude perturbations (i.e., oscillometry) were used, together with less conventional and new techniques that probe the lung using maneuvers of large amplitudes. The latter include a partial and a full-range pressure-volume maneuvers to measure quasi-static elastance, compliance, total lung volume, vital capacity and residual volume. The results demonstrate that lung mechanics assessed by oscillometry was only slightly affected by lipopolysaccharide, confirming previous findings. In contradistinction, lipopolysaccharide markedly altered mechanics when the lung was probed with maneuvers of large amplitudes. With the dose of 3 mg/kg at the peak of inflammation (48 h post-exposure), lipopolysaccharide increased quasi-static elastance by 26.7% (p<0.0001), and decreased compliance by 34.5% (p<0.0001). It also decreased lung volumes, including total lung capacity, vital capacity and residual volume by 33.3%, 30.5% and 43.3%, respectively (all p<0.0001). These newly reported physiological alterations represent sensitive outcomes to efficiently evaluate countermeasures (e.g., drugs) in the context of several lung diseases.
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Affiliation(s)
- Fatemeh Khadangi
- Institut Universitaire de Cardiologie et de Pneumologie de Quebec, Université Laval, Québec, Canada
| | - Sophie Tremblay-Pitre
- Institut Universitaire de Cardiologie et de Pneumologie de Quebec, Université Laval, Québec, Canada
| | - Alexis Dufour-Mailhot
- Institut Universitaire de Cardiologie et de Pneumologie de Quebec, Université Laval, Québec, Canada
| | - Andrés Bruno Rojas-Ruiz
- Institut Universitaire de Cardiologie et de Pneumologie de Quebec, Université Laval, Québec, Canada
| | - Magali Boucher
- Institut Universitaire de Cardiologie et de Pneumologie de Quebec, Université Laval, Québec, Canada
| | - Cyndi Henry
- Institut Universitaire de Cardiologie et de Pneumologie de Quebec, Université Laval, Québec, Canada
| | | | - David Brunet
- SCIREQ - Scientific Respiratory Equipment Inc., Montreal, Canada
| | | | - Ynuk Bossé
- Institut Universitaire de Cardiologie et de Pneumologie de Quebec, Université Laval, Québec, Canada
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13
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Wang H, Tumes DJ, Hercus TR, Yip KH, Aloe C, Vlahos R, Lopez AF, Wilson N, Owczarek CM, Bozinovski S. Blocking the human common beta subunit of the GM-CSF, IL-5 and IL-3 receptors markedly reduces hyperinflammation in ARDS models. Cell Death Dis 2022; 13:137. [PMID: 35145069 PMCID: PMC8831609 DOI: 10.1038/s41419-022-04589-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 12/07/2021] [Accepted: 01/26/2022] [Indexed: 02/08/2023]
Abstract
Acute respiratory distress syndrome (ARDS) is triggered by various aetiological factors such as trauma, sepsis and respiratory viruses including SARS-CoV-2 and influenza A virus. Immune profiling of severe COVID-19 patients has identified a complex pattern of cytokines including granulocyte macrophage-colony stimulating factor (GM-CSF) and interleukin (IL)-5, which are significant mediators of viral-induced hyperinflammation. This strong response has prompted the development of therapies that block GM-CSF and other cytokines individually to limit inflammation related pathology. The common cytokine binding site of the human common beta (βc) receptor signals for three inflammatory cytokines: GM-CSF, IL-5 and IL-3. In this study, βc was targeted with the monoclonal antibody (mAb) CSL311 in engineered mice devoid of mouse βc and βIL-3 and expressing human βc (hβcTg mice). Direct pulmonary administration of lipopolysaccharide (LPS) caused ARDS-like lung injury, and CSL311 markedly reduced lung inflammation and oedema, resulting in improved oxygen saturation levels in hβcTg mice. In a separate model, influenza (HKx31) lung infection caused viral pneumonia associated with a large influx of myeloid cells into the lungs of hβcTg mice. The therapeutic application of CSL311 potently decreased accumulation of monocytes/macrophages, neutrophils, and eosinophils without altering lung viral loads. Furthermore, CSL311 treatment did not limit the viral-induced expansion of NK and NKT cells, or the tissue expression of type I/II/III interferons needed for efficient viral clearance. Simultaneously blocking GM-CSF, IL-5 and IL-3 signalling with CSL311 may represent an improved and clinically applicable strategy to reducing hyperinflammation in the ARDS setting.
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Affiliation(s)
- Hao Wang
- School of Health & Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Damon J Tumes
- Centre for Cancer Biology, SA Pathology and UniSA, Adelaide, Australia
| | - Timothy R Hercus
- Centre for Cancer Biology, SA Pathology and UniSA, Adelaide, Australia
| | - K H Yip
- Centre for Cancer Biology, SA Pathology and UniSA, Adelaide, Australia
| | - Christian Aloe
- School of Health & Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Ross Vlahos
- School of Health & Biomedical Sciences, RMIT University, Bundoora, VIC, Australia
| | - Angel F Lopez
- Centre for Cancer Biology, SA Pathology and UniSA, Adelaide, Australia
| | | | | | - Steven Bozinovski
- School of Health & Biomedical Sciences, RMIT University, Bundoora, VIC, Australia.
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14
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Ataya A, Knight V, Carey BC, Lee E, Tarling EJ, Wang T. The Role of GM-CSF Autoantibodies in Infection and Autoimmune Pulmonary Alveolar Proteinosis: A Concise Review. Front Immunol 2021; 12:752856. [PMID: 34880857 PMCID: PMC8647160 DOI: 10.3389/fimmu.2021.752856] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/04/2021] [Indexed: 11/13/2022] Open
Abstract
Autoantibodies to multiple cytokines have been identified and some, including antibodies against granulocyte-macrophage colony-stimulating factor (GM-CSF), have been associated with increased susceptibility to infection. High levels of GM-CSF autoantibodies that neutralize signaling cause autoimmune pulmonary alveolar proteinosis (aPAP), an ultrarare autoimmune disease characterized by accumulation of excess surfactant in the alveoli, leading to pulmonary insufficiency. Defective GM-CSF signaling leads to functional deficits in multiple cell types, including macrophages and neutrophils, with impaired phagocytosis and host immune responses against pulmonary and systemic infections. In this article, we review the role of GM-CSF in aPAP pathogenesis and pulmonary homeostasis along with the increased incidence of infections (particularly opportunistic infections). Therefore, recombinant human GM-CSF products may have potential for treatment of aPAP and possibly other infectious and pulmonary diseases due to its pleotropic immunomodulatory actions.
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Affiliation(s)
- Ali Ataya
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Florida, Gainesville, FL, United States
| | - Vijaya Knight
- Department of Pediatrics, Section of Allergy and Immunology, University of Colorado School of Medicine and Children's Hospital, Aurora, CO, United States
| | - Brenna C Carey
- Translational Pulmonary Science Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Elinor Lee
- Division of Pulmonary, Critical Care, and Sleep Medicine, David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, United States
| | - Elizabeth J Tarling
- Department of Medicine, Division of Cardiology, David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, United States
| | - Tisha Wang
- Division of Pulmonary, Critical Care, and Sleep Medicine, David Geffen School of Medicine at University of California, Los Angeles (UCLA), Los Angeles, CA, United States
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15
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Muhammad W, Zhai Z, Wang S, Gao C. Inflammation-modulating nanoparticles for pneumonia therapy. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 14:e1763. [PMID: 34713969 DOI: 10.1002/wnan.1763] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 12/23/2022]
Abstract
Pneumonia is a common but serious infectious disease, and is the sixth leading cause for death. The foreign pathogens such as viruses, fungi, and bacteria establish an inflammation response after interaction with lung, leading to the filling of bronchioles and alveoli with fluids. Although the pharmacotherapies have shown their great effectiveness to combat pathogens, advanced methods are under developing to treat complicated cases such as virus-infection and lung inflammation or acute lung injury (ALI). The inflammation modulation nanoparticles (NPs) can effectively suppress immune cells and inhibit inflammatory molecules in the lung site, and thereby alleviate pneumonia and ALI. In this review, the pathological inflammatory microenvironments in pneumonia, which are instructive for the design of biomaterials therapy, are summarized. The focus is then paid to the inflammation-modulating NPs that modulate the inflammatory cells, cytokines and chemokines, and microenvironments of pneumonia for better therapeutic effects. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Respiratory Disease.
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Affiliation(s)
- Wali Muhammad
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Zihe Zhai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Shuqin Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China
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16
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Pastille E, Faßnacht T, Adamczyk A, Ngo Thi Phuong N, Buer J, Westendorf AM. Inhibition of TLR4 Signaling Impedes Tumor Growth in Colitis-Associated Colon Cancer. Front Immunol 2021; 12:669747. [PMID: 34025672 PMCID: PMC8138317 DOI: 10.3389/fimmu.2021.669747] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/20/2021] [Indexed: 01/06/2023] Open
Abstract
Patients suffering from ulcerative colitis are at increased risk of developing colorectal cancer. Although the exact underlying mechanisms of inflammation-associated carcinogenesis remain unknown, the intestinal microbiota as well as pathogenic bacteria are discussed as contributors to inflammation and colitis-associated colon cancer (CAC). In the present study, we analyzed the impact of TLR4, the receptor for Gram-negative bacteria derived lipopolysaccharides, on intestinal inflammation and tumorigenesis in a murine model of CAC. During the inflammatory phases of CAC development, we observed a strong upregulation of Tlr4 expression in colonic tissues. Blocking of TLR4 signaling by a small-molecule-specific inhibitor during the inflammatory phases of CAC strongly diminished the development and progression of colonic tumors, which was accompanied by decreased numbers of infiltrating macrophages and reduced colonic pro-inflammatory cytokine levels compared to CAC control mice. Interestingly, inhibiting bacterial signaling by antibiotic treatment during the inflammatory phases of CAC also protected mice from severe intestinal inflammation and almost completely prevented tumor growth. Nevertheless, application of antibiotics involved rapid and severe body weight loss and might have unwanted side effects. Our results indicate that bacterial activation of TLR4 on innate immune cells in the colon triggers inflammation and promotes tumor growth. Thus, the inhibition of the TLR4 signaling during intestinal inflammation might be a novel approach to impede CAC development.
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Affiliation(s)
| | | | | | | | | | - Astrid M. Westendorf
- Institute of Medical Microbiology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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17
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Kim DI, Song MK, Lee K. Diesel Exhaust Particulates Enhances Susceptibility of LPS-Induced Acute Lung Injury through Upregulation of the IL-17 Cytokine-Derived TGF-β 1/Collagen I Expression and Activation of NLRP3 Inflammasome Signaling in Mice. Biomolecules 2021; 11:67. [PMID: 33419073 PMCID: PMC7825418 DOI: 10.3390/biom11010067] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/31/2020] [Accepted: 01/01/2021] [Indexed: 12/12/2022] Open
Abstract
Diesel exhaust particulates (DEP) adversely affect the respiratory system and exacerbate lung diseases, resulting in high mortality rates. However, its pathogenesis is complicated, and the mechanisms involved are incompletely understood. We investigated the effects of DEP pre-exposure on lipopolysaccharide (LPS)-induced acute lung injury (ALI) and identified the roles of interleukin (IL)-17 in mice. Mice were divided into vehicle control, DEP, LPS, and DEP pre-exposed and LPS-instilled groups. Pre-exposure to DEP enhanced the number of total cells, neutrophils, and lymphocytes in the BAL fluid of LPS-instilled mice. Pre-exposure to DEP synergistically exacerbated pulmonary acute lung inflammation and granulomatous inflammation/pulmonary fibrosis, concomitant with the enhanced expression of inflammatory cytokines in the BAL fluid and of collagen I and TGF-β1 in the lungs of LPS-instilled mice. The number of TGF-β1-positive cells in the DEP pre-exposed and LPS-instilled group was higher than that in the LPS group. The expression of NLR family pyrin domain containing 3 (NLRP3) inflammasome components was markedly increased in the DEP pre-exposed and LPS-instilled group. IL-17 levels in the BAL fluid and IL-17-positive cells in the lungs were significantly increased by pre-exposure to DEP in the LPS-induced group compared to that in the DEP or LPS group. These results suggest that DEP predominantly contributes to fibrotic lung disease in LPS-related acute lung injury by upregulating IL-17 cytokine-mediated collagen I and TGF-β1 and, at least in part, by activating LPS-induced NLRP3 inflammasome signaling. The study should be useful in devising better strategies for prevention and management of ALI.
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Affiliation(s)
- Dong Im Kim
- National Center for Efficacy Evaluation of Respiratory Disease Products, Korea Institute of Toxicology, 30 Baehak1-gil, Jeongeup 56212, Korea; (D.I.K.); (M.-K.S.)
| | - Mi-Kyung Song
- National Center for Efficacy Evaluation of Respiratory Disease Products, Korea Institute of Toxicology, 30 Baehak1-gil, Jeongeup 56212, Korea; (D.I.K.); (M.-K.S.)
- Department of Human and Environmental Toxicology, University of Science & Technology, Daejeon 34113, Korea
| | - Kyuhong Lee
- National Center for Efficacy Evaluation of Respiratory Disease Products, Korea Institute of Toxicology, 30 Baehak1-gil, Jeongeup 56212, Korea; (D.I.K.); (M.-K.S.)
- Department of Human and Environmental Toxicology, University of Science & Technology, Daejeon 34113, Korea
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18
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Lee KMC, Jarnicki A, Achuthan A, Fleetwood AJ, Anderson GP, Ellson C, Feeney M, Modis LK, Smith JE, Hamilton JA, Cook A. CCL17 in Inflammation and Pain. THE JOURNAL OF IMMUNOLOGY 2020; 205:213-222. [PMID: 32461237 DOI: 10.4049/jimmunol.2000315] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 04/28/2020] [Indexed: 12/12/2022]
Abstract
It has been reported that a GM-CSF→CCL17 pathway, originally identified in vitro in macrophage lineage populations, is implicated in the control of inflammatory pain, as well as arthritic pain and disease. We explore, in this study and in various inflammation models, the cellular CCL17 expression and its GM-CSF dependence as well as the function of CCL17 in inflammation and pain. This study used models allowing the convenient cell isolation from Ccl17E/+ reporter mice; it also exploited both CCL17-dependent and unique CCL17-driven inflammatory pain and arthritis models, the latter permitting a radiation chimera approach to help identify the CCL17 responding cell type(s) and the mediators downstream of CCL17 in the control of inflammation and pain. We present evidence that 1) in the particular inflammation models studied, CCL17 expression is predominantly in macrophage lineage populations and is GM-CSF dependent, 2) for its action in arthritic pain and disease development, CCL17 acts on CCR4+ non-bone marrow-derived cells, and 3) for inflammatory pain development in which a GM-CSF→CCL17 pathway appears critical, nerve growth factor, CGRP, and substance P all appear to be required.
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Affiliation(s)
- Kevin M-C Lee
- Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia;
| | - Andrew Jarnicki
- Department of Pharmacology, The University of Melbourne, Parkville, Victoria 3050, Australia
| | - Adrian Achuthan
- Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia
| | - Andrew J Fleetwood
- Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia
| | - Gary P Anderson
- Department of Pharmacology, The University of Melbourne, Parkville, Victoria 3050, Australia
| | - Christian Ellson
- Adaptive Immunity Research Unit, GlaxoSmithKline, Stevenage, Hertfordshire SG1 2NY, United Kingdom; and
| | - Maria Feeney
- Adaptive Immunity Research Unit, GlaxoSmithKline, Stevenage, Hertfordshire SG1 2NY, United Kingdom; and
| | - Louise K Modis
- Adaptive Immunity Research Unit, GlaxoSmithKline, Stevenage, Hertfordshire SG1 2NY, United Kingdom; and
| | - Julia E Smith
- Adaptive Immunity Research Unit, GlaxoSmithKline, Stevenage, Hertfordshire SG1 2NY, United Kingdom; and
| | - John A Hamilton
- Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia.,Australian Institute for Musculoskeletal Science, The University of Melbourne and Western Health, St. Albans, Victoria 3021, Australia
| | - Andrew Cook
- Department of Medicine, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia
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19
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Domscheit H, Hegeman MA, Carvalho N, Spieth PM. Molecular Dynamics of Lipopolysaccharide-Induced Lung Injury in Rodents. Front Physiol 2020; 11:36. [PMID: 32116752 PMCID: PMC7012903 DOI: 10.3389/fphys.2020.00036] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 01/16/2020] [Indexed: 12/29/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a common disease entity in critical care medicine and is still associated with a high mortality. Because of the heterogeneous character of ARDS, animal models are an insturment to study pathology in relatively standardized conditions. Rodent models can bridge the gap from in vitro investigations to large animal and clinical trials by facilitating large sample sizes under physiological conditions at comparatively low costs. One of the most commonly used rodent models of acute lung inflammation and ARDS is administration of lipopolysaccharide (LPS), either into the airways (direct, pulmonary insult) or systemically (indirect, extra-pulmonary insult). This narrative review discusses the dynamics of important pathophysiological pathways contributing to the physiological response to LPS-induced injury. Pathophysiological pathways of LPS-induced lung injury are not only influenced by the type of the primary insult (e.g., pulmonary or extra-pulmonary) and presence of additional stimuli (e.g., mechanical ventilation), but also by time. As such, findings in animal models of LPS-induced lung injury may depend on the time point at which samples are obtained and physiological data are captured. This review summarizes the current evidence and highlights uncertainties on the molecular dynamics of LPS-induced lung injury in rodent models, encouraging researchers to take accurate timing of LPS-induced injury into account when designing experimental trials.
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Affiliation(s)
- Hannes Domscheit
- Department of Anesthesiology and Critical Care Medicine, University Hospital Dresden, Technische Universität Dresden, Dresden, Germany
| | - Maria A Hegeman
- Laboratory of Experimental Intensive Care and Anesthesiology (L∙E∙I∙C∙A), Department of Intensive Care, Academic Medical Center, Amsterdam, Netherlands.,Department of Educational Consultancy and Professional Development, Faculty of Social and Behavioral Sciences, Utrecht University, Utrecht, Netherlands
| | - Niedja Carvalho
- Department of Anesthesiology and Critical Care Medicine, University Hospital Dresden, Technische Universität Dresden, Dresden, Germany
| | - Peter M Spieth
- Department of Anesthesiology and Critical Care Medicine, University Hospital Dresden, Technische Universität Dresden, Dresden, Germany
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20
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Bottemanne P, Paquot A, Ameraoui H, Alhouayek M, Muccioli GG. The α/β–hydrolase domain 6 inhibitor WWL70 decreases endotoxin‐induced lung inflammation in mice, potential contribution of 2‐arachidonoylglycerol, and lysoglycerophospholipids. FASEB J 2019; 33:7635-7646. [DOI: 10.1096/fj.201802259r] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Pauline Bottemanne
- Bioanalysis and Pharmacology of Bioactive Lipids Research GroupLouvain Drug Research InstituteUniversité Catholique de Louvain (UCLouvain)BrusselsBelgium
| | - Adrien Paquot
- Bioanalysis and Pharmacology of Bioactive Lipids Research GroupLouvain Drug Research InstituteUniversité Catholique de Louvain (UCLouvain)BrusselsBelgium
| | - Hafsa Ameraoui
- Bioanalysis and Pharmacology of Bioactive Lipids Research GroupLouvain Drug Research InstituteUniversité Catholique de Louvain (UCLouvain)BrusselsBelgium
| | - Mireille Alhouayek
- Bioanalysis and Pharmacology of Bioactive Lipids Research GroupLouvain Drug Research InstituteUniversité Catholique de Louvain (UCLouvain)BrusselsBelgium
| | - Giulio G. Muccioli
- Bioanalysis and Pharmacology of Bioactive Lipids Research GroupLouvain Drug Research InstituteUniversité Catholique de Louvain (UCLouvain)BrusselsBelgium
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21
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Sturrock A, Woller D, Freeman A, Sanders K, Paine R. Consequences of Hypoxia for the Pulmonary Alveolar Epithelial Cell Innate Immune Response. THE JOURNAL OF IMMUNOLOGY 2018; 201:3411-3420. [PMID: 30381478 DOI: 10.4049/jimmunol.1701387] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 10/02/2018] [Indexed: 11/19/2022]
Abstract
Pulmonary innate immune responses involve a highly regulated multicellular network to defend the enormous surface area of the lung. Disruption of these responses renders the host susceptible to pneumonia. Alveolar epithelial cells (AEC) are a critical source of innate immune molecules such as GM-CSF, which determine the functional maturation of alveolar macrophages. In many pulmonary diseases, heterogeneous ventilation leads to regional hypoxia in the lung. The effect of hypoxia on AEC innate immune function is unknown. We now report that exposure of primary murine AEC to hypoxia (1% oxygen) for 24 h results in significant suppression of key innate immune molecules, including GM-CSF, CCL2, and IL-6. This exposure did not cause toxicity but did induce stabilization of hypoxia-inducible factor 1α protein (HIF-1α) and shift to glycolytic metabolism. Focusing on GM-CSF, we found that hypoxia greatly decreased the rate of GM-CSF transcription. Hypoxia both decreased NF-κB signaling in AEC and induced chromosomal changes, resulting in decreased accessibility in the GM-CSF proximal promoter of target sequences for NF-κB binding. In mice exposed to hypoxia in vivo (12% oxygen for 2 d), lung GM-CSF protein expression was reduced. In vivo phagocytosis of fluorescent beads by alveolar macrophages was also suppressed, but this effect was reversed by treatment with GM-CSF. These studies suggest that in critically ill patients, local hypoxia may contribute to the susceptibility of poorly ventilated lung units to infection through complementary effects on several pathways, reducing AEC expression of GM-CSF and other key innate immune molecules.
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Affiliation(s)
- Anne Sturrock
- Department of Veterans Affairs Medicine Center, Salt Lake City, UT 84148; and.,Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132
| | - Diana Woller
- Department of Veterans Affairs Medicine Center, Salt Lake City, UT 84148; and.,Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132
| | - Andrew Freeman
- Department of Veterans Affairs Medicine Center, Salt Lake City, UT 84148; and.,Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132
| | - Karl Sanders
- Department of Veterans Affairs Medicine Center, Salt Lake City, UT 84148; and.,Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132
| | - Robert Paine
- Department of Veterans Affairs Medicine Center, Salt Lake City, UT 84148; and .,Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132
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22
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Benmerzoug S, Marinho FV, Rose S, Mackowiak C, Gosset D, Sedda D, Poisson E, Uyttenhove C, Van Snick J, Jacobs M, Garcia I, Ryffel B, Quesniaux VFJ. GM-CSF targeted immunomodulation affects host response to M. tuberculosis infection. Sci Rep 2018; 8:8652. [PMID: 29872095 PMCID: PMC5988704 DOI: 10.1038/s41598-018-26984-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 05/23/2018] [Indexed: 12/15/2022] Open
Abstract
Host directed immunomodulation represents potential new adjuvant therapies in infectious diseases such as tuberculosis. Major cytokines like TNFα exert a multifold role in host control of mycobacterial infections. GM-CSF and its receptor are over-expressed during acute M. tuberculosis infection and we asked how GM-CSF neutralization might affect host response, both in immunocompetent and in immunocompromised TNFα-deficient mice. GM-CSF neutralizing antibodies, at a dose effectively preventing acute lung inflammation, did not affect M. tuberculosis bacterial burden, but increased the number of granuloma in wild-type mice. We next assessed whether GM-CSF neutralization might affect the control of M. tuberculosis by isoniazid/rifampicin chemotherapy. GM-CSF neutralization compromised the bacterial control under sub-optimal isoniazid/rifampicin treatment in TNFα-deficient mice, leading to exacerbated lung inflammation with necrotic granulomatous structures and high numbers of intracellular M. tuberculosis bacilli. In vitro, GM-CSF neutralization promoted M2 anti-inflammatory phenotype in M. bovis BCG infected macrophages, with reduced mycobactericidal NO production and higher intracellular M. bovis BCG burden. Thus, GM-CSF pathway overexpression during acute M. tuberculosis infection contributes to an efficient M1 response, and interfering with GM-CSF pathway in the course of infection may impair the host inflammatory response against M. tuberculosis.
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Affiliation(s)
- Sulayman Benmerzoug
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics (INEM), University of Orleans, Orleans, France
| | - Fabio Vitarelli Marinho
- CNRS, UMR7355, Orleans, France
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte-Minas, Gerais, Brazil
| | - Stéphanie Rose
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics (INEM), University of Orleans, Orleans, France
| | - Claire Mackowiak
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics (INEM), University of Orleans, Orleans, France
| | - David Gosset
- P@CYFIC Plateform, Center for Molecular Biophysics, CNRS UPR4301, Orleans, France
| | - Delphine Sedda
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics (INEM), University of Orleans, Orleans, France
| | - Emeline Poisson
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics (INEM), University of Orleans, Orleans, France
| | | | | | - Muazzam Jacobs
- Division of Immunology, Department of Pathology and the Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- National Health Laboratory Service, Sandringham, Johannesburg, South Africa
- Immunology of Infectious Disease Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Irene Garcia
- Department of Pathology and Immunology, Centre Medical Universitaire (CMU), Faculty of Medicine, University of Geneva, Geneva, 1211, Switzerland
| | - Bernhard Ryffel
- CNRS, UMR7355, Orleans, France
- Experimental and Molecular Immunology and Neurogenetics (INEM), University of Orleans, Orleans, France
- Division of Immunology, Department of Pathology and the Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Valerie F J Quesniaux
- CNRS, UMR7355, Orleans, France.
- Experimental and Molecular Immunology and Neurogenetics (INEM), University of Orleans, Orleans, France.
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23
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Excretory/secretory products from two Fasciola hepatica isolates induce different transcriptional changes and IL-10 release in LPS-activated bovine "BOMA" macrophages. Parasitol Res 2017; 116:2775-2782. [PMID: 28823007 DOI: 10.1007/s00436-017-5588-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 08/08/2017] [Indexed: 02/08/2023]
Abstract
Fasciola hepatica are trematodes that reside in the bile ducts of mammals. Infection causes US$3 billion in losses annually in animal production and is considered a zoonosis of growing importance. An under-represented area in F. hepatica research has been the examination of the different immunomodulatory abilities of various parasite isolates on the host immune system. In this paper, this issue was explored, with the bovine macrophage cell line "BOMA". The cells were matured by LPS treatment and stimulated with excretory/secretory antigens (ES) from two Fasciola hepatica isolates: a laboratory isolate "Weybridge" (Fh-WeyES) and a wild isolate (Fh-WildES). As expected, stimulation with antigen mixtures with highly similar compositions resulted in mild transcriptomic differences. However, there were significant differences in cytokine levels. Compared to Fh-WeyES, exposure to Fh-WildES upregulated 27 and downregulated 30 genes. Fh-ES from both isolates diminished the release of TNF-α, whereas only Fh-WildES decreased IL-10 secretion. Neither Fh-WeyES nor Fh-WildES had an impact on IL-12 release. Our results indicate that various isolates can have different immunomodulatory abilities and impacts on the bovine immune system.
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24
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Pekson R, Poltoratsky V, Gorasiya S, Sundaram S, Ashby CR, Vancurova I, Reznik SE. N,N-Dimethylacetamide Significantly Attenuates LPS- and TNFα-Induced Proinflammatory Responses Via Inhibition of the Nuclear Factor Kappa B Pathway. Mol Med 2016; 22:747-758. [PMID: 27782292 DOI: 10.2119/molmed.2016.00017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 10/18/2016] [Indexed: 12/25/2022] Open
Abstract
Previously, we have shown that N,N-dimethylacetamide (DMA) prevents inflammation-induced preterm birth in a murine model, inhibits LPS-induced increases in placental pro-inflammatory cytokines and up-regulates the anti-inflammatory cytokine Interleukin-10 (IL-10). However, DMA's mechanism of action remains to be elucidated. In the current study we investigate how DMA produces its anti-inflammatory effect. Using in vitro and ex vivo models, we show that DMA suppresses secretion of pro-inflammatory cytokines in lipopolysaccharide (LPS)-induced RAW 264.7 cells, TNFα-challenged JEG-3 cells and LPS-stimulated human placental explants. DMA significantly attenuated the secretion of TNFα, IL-6, IL-10, and granulocyte macrophage colony stimulating factor (GM-CSF) from LPS-stimulated RAW 264.7 cells, IL-6 secretion from TNFα-stimulated JEG-3 cells and TNFα, IL-6, IL-10, GM-CSF and Interleukin-8 (IL-8) from LPS-stimulated human placental explants. We further investigated if DMA's effect on cytokine expression involves the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and mitogen-activated protein kinase (MAPK) pathways. DMA (10 mM) significantly inhibited nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha (IκBα) degradation in LPS-stimulated RAW 264.7 cells, but there was no significant change in the expression of phosphorylated or native forms of downstream proteins in the MAPK pathway. In addition, DMA significantly attenuated luciferase activity in cells co-transfected with NF-κB-Luc reporter plasmid, but not with AP-1-Luc or CEBP-Luc reporters. Overall, our findings suggest that the anti-inflammatory activity of DMA is mediated by inhibition of the NF-κB pathway via decreased IκBα degradation.
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Affiliation(s)
- Ryan Pekson
- Dept of Pharmaceutical Sciences, St. John's University
| | | | | | | | | | | | - Sandra E Reznik
- Dept of Pharmaceutical Sciences, St. John's University.,Depts of Pathology and Obstetrics and Gynecology and Women's Health, Albert Einstein College of Medicine
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25
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Patel BV, Tatham KC, Wilson MR, O'Dea KP, Takata M. In vivo compartmental analysis of leukocytes in mouse lungs. Am J Physiol Lung Cell Mol Physiol 2015; 309:L639-52. [PMID: 26254421 PMCID: PMC4593833 DOI: 10.1152/ajplung.00140.2015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 08/04/2015] [Indexed: 12/12/2022] Open
Abstract
The lung has a unique structure consisting of three functionally different compartments (alveolar, interstitial, and vascular) situated in an extreme proximity. Current methods to localize lung leukocytes using bronchoalveolar lavage and/or lung perfusion have significant limitations for determination of location and phenotype of leukocytes. Here we present a novel method using in vivo antibody labeling to enable accurate compartmental localization/quantification and phenotyping of mouse lung leukocytes. Anesthetized C57BL/6 mice received combined in vivo intravenous and intratracheal labeling with fluorophore-conjugated anti-CD45 antibodies, and lung single-cell suspensions were analyzed by flow cytometry. The combined in vivo intravenous and intratracheal CD45 labeling enabled robust separation of the alveolar, interstitial, and vascular compartments of the lung. In naive mice, the alveolar compartment consisted predominantly of resident alveolar macrophages. The interstitial compartment, gated by events negative for both intratracheal and intravenous CD45 staining, showed two conventional dendritic cell populations, as well as a Ly6Clo monocyte population. Expression levels of MHCII on these interstitial monocytes were much higher than on the vascular Ly6Clo monocyte populations. In mice exposed to acid aspiration-induced lung injury, this protocol also clearly distinguished the three lung compartments showing the dynamic trafficking of neutrophils and exudative monocytes across the lung compartments during inflammation and resolution. This simple in vivo dual-labeling technique substantially increases the accuracy and depth of lung flow cytometric analysis, facilitates a more comprehensive examination of lung leukocyte pools, and enables the investigation of previously poorly defined “interstitial” leukocyte populations during models of inflammatory lung diseases.
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Affiliation(s)
- Brijesh V Patel
- Section of Anaesthetics, Pain Medicine and Intensive Care, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Kate C Tatham
- Section of Anaesthetics, Pain Medicine and Intensive Care, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Michael R Wilson
- Section of Anaesthetics, Pain Medicine and Intensive Care, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Kieran P O'Dea
- Section of Anaesthetics, Pain Medicine and Intensive Care, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Masao Takata
- Section of Anaesthetics, Pain Medicine and Intensive Care, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
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26
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Louis C, Cook AD, Lacey D, Fleetwood AJ, Vlahos R, Anderson GP, Hamilton JA. Specific Contributions of CSF-1 and GM-CSF to the Dynamics of the Mononuclear Phagocyte System. THE JOURNAL OF IMMUNOLOGY 2015; 195:134-44. [DOI: 10.4049/jimmunol.1500369] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 04/27/2015] [Indexed: 12/23/2022]
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27
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GM-CSF and uPA are required for Porphyromonas gingivalis-induced alveolar bone loss in a mouse periodontitis model. Immunol Cell Biol 2015; 93:705-15. [PMID: 25753270 DOI: 10.1038/icb.2015.25] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 01/22/2015] [Accepted: 02/04/2015] [Indexed: 12/19/2022]
Abstract
Granulocyte-macrophage colony-stimulating factor (GM-CSF) and urokinase-type plasminogen activator (uPA) can contribute to the progression of chronic inflammatory diseases with possible involvement of macrophages. In this study, we investigated the role of both GM-CSF and uPA in Porphyromonas gingivalis-induced experimental periodontitis using GM-CSF-/- and uPA-/- mice. Intra-oral inoculation of wild-type (WT) C57BL/6 mice with P. gingivalis resulted in establishment of the pathogen in plaque and a significant increase in alveolar bone resorption. The infected mice also exhibited a CD11b(+) CD86(+) macrophage infiltrate into the gingival tissue, as well as P. gingivalis-specific pro-inflammatory cytokine and predominantly IgG2b antibody responses. In comparison, intra-oral inoculation of P. gingivalis did not induce bone resorption and there was significantly less P. gingivalis recovered from plaque in GM-CSF-/- and uPA-/- mice. Furthermore, P. gingivalis did not induce a macrophage gingival infiltrate or activate isolated peritoneal macrophages from the gene-deficient mice. Pro-inflammatory P. gingivalis-specific T-cell cytokine responses and serum interferon-gamma (IFN-γ) and IgG2b concentrations were significantly lower in GM-CSF-/- mice. In uPA-/- mice, T-cell responses were lower but serum IFN-γ and IgG2b levels were comparable with WT mice levels. These results suggest that GM-CSF and uPA are both involved in the progression of experimental periodontitis, possibly via a macrophage-dependent mechanism(s).
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28
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Sturrock A, Baker JA, Mir-Kasimov M, Paine R. Contrasting effects of hyperoxia on GM-CSF gene transcription in alveolar epithelial cells and T cells. Physiol Rep 2015; 3:3/3/e12324. [PMID: 25747588 PMCID: PMC4393158 DOI: 10.14814/phy2.12324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Granulocyte/macrophage colony-stimulating factor (GM-CSF) is critically important for normal pulmonary innate immunity and for functional maturation of alveolar macrophages. Alveolar epithelial cells (AEC) are a major source of GM-CSF in the lung and express this growth factor constitutively, whereas most other cells, including T cells, express GM-CSF following inflammatory stimulation. AEC expression of GM-CSF is suppressed by oxidative stress, at least in part through induction of microRNA leading to increased mRNA turnover. In this report, we compare and contrast the effect of hyperoxia on transcriptional aspects of gene regulation of GM-CSF in lung epithelia and T cells of human and mouse origin. Similar to primary murine AEC, human H820 cells that express multiple characteristics of normal alveolar epithelial cells express GM-CSF constitutively, with decreased expression and increased mRNA turnover following exposure to hyperoxia. In contrast, hyperoxia induces augmented GM-CSF expression in human and murine activated T cells, in association with enhanced GM-CSF mRNA stability. Alveolar epithelial cells demonstrate constitutive transcription, with the proximal promoter in an open configuration in normoxia, without change in hyperoxia. Conversely, in both human and murine T cells, hyperoxia increased GM-CSF gene transcription. The proximal promoter was in a closed configuration in unstimulated T cells but became accessible upon activation and still more accessible in activated T cells exposed to hyperoxia. These fundamental differences in molecular regulation of GM-CSF expression highlight the distinctive niche of alveolar epithelial cell expression of GM-CSF and offer insights into the biology of GM-CSF in the setting of acute lung injury.
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Affiliation(s)
- Anne Sturrock
- Department of Veterans, Affairs Medical Center, Salt Lake City, Utah, USA Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Jessica A Baker
- Department of Veterans, Affairs Medical Center, Salt Lake City, Utah, USA Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Mustafa Mir-Kasimov
- Department of Veterans, Affairs Medical Center, Salt Lake City, Utah, USA Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Robert Paine
- Department of Veterans, Affairs Medical Center, Salt Lake City, Utah, USA Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
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29
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Lilja A, Weeden CE, McArthur K, Nguyen T, Donald A, Wong ZX, Dousha L, Bozinovski S, Vlahos R, Burns CJ, Asselin-Labat ML, Anderson GP. HSP90 inhibition suppresses lipopolysaccharide-induced lung inflammation in vivo. PLoS One 2015; 10:e0114975. [PMID: 25615645 PMCID: PMC4304786 DOI: 10.1371/journal.pone.0114975] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 11/15/2014] [Indexed: 11/18/2022] Open
Abstract
Inflammation is an important component of cancer diathesis and treatment-refractory inflammation is a feature of many chronic degenerative lung diseases. HSP90 is a 90kDa protein which functions as an ATP-dependent molecular chaperone that regulates the signalling conformation and expression of multiple protein client proteins especially oncogenic mediators. HSP90 inhibitors are in clinical development as cancer therapies but the myeleosuppressive and neutropenic effect of first generation geldanamycin-class inhibitors has confounded studies on the effects on HSP90 inhibitors on inflammation. To address this we assessed the ability of Ganetespib, a non-geldanamycin HSP90 blocker, to suppress lipopolysaccharide (LPS)-induced cellular infiltrates, proteases and inflammatory mediator and transcriptional profiles. Ganetespib (10-100 mg/kg, i.v.) did not directly cause myelosuppression, as assessed by video micrography and basal blood cell count, but it strongly and dose-dependently suppressed LPS-induced neutrophil mobilization into blood and neutrophil- and mononuclear cell-rich steroid-refractory lung inflammation. Ganetespib also suppressed B cell and NK cell accumulation, inflammatory cytokine and chemokine induction and MMP9 levels. These data identify non-myelosuppresssive HSP90 inhibitors as potential therapies for inflammatory diseases refractory to conventional therapy, in particular those of the lung.
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Affiliation(s)
- Andrew Lilja
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, 3010 VIC, Australia
| | - Clare E. Weeden
- Division of ACRF Stem Cells and Cancer, the Walter and Eliza Hall Institute of Medical Research, Parkville, 3052 VIC, Australia
| | - Kate McArthur
- Division of Chemical Biology, the Walter and Eliza Hall Institute of Medical Research, Parkville, 3052 VIC, Australia; The Department of Medical Biology, The University of Melbourne, Parkville, 3010 VIC, Australia
| | - Thao Nguyen
- Division of Chemical Biology, the Walter and Eliza Hall Institute of Medical Research, Parkville, 3052 VIC, Australia; The Department of Medical Biology, The University of Melbourne, Parkville, 3010 VIC, Australia
| | - Alastair Donald
- Division of Chemical Biology, the Walter and Eliza Hall Institute of Medical Research, Parkville, 3052 VIC, Australia; The Department of Medical Biology, The University of Melbourne, Parkville, 3010 VIC, Australia
| | - Zi Xin Wong
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, 3010 VIC, Australia
| | - Lovisa Dousha
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, 3010 VIC, Australia
| | - Steve Bozinovski
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, 3010 VIC, Australia
| | - Ross Vlahos
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, 3010 VIC, Australia
| | - Christopher J. Burns
- Division of Chemical Biology, the Walter and Eliza Hall Institute of Medical Research, Parkville, 3052 VIC, Australia; The Department of Medical Biology, The University of Melbourne, Parkville, 3010 VIC, Australia
| | - Marie-Liesse Asselin-Labat
- Division of ACRF Stem Cells and Cancer, the Walter and Eliza Hall Institute of Medical Research, Parkville, 3052 VIC, Australia
- * E-mail: (GPA); (MLAL)
| | - Gary P. Anderson
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, 3010 VIC, Australia
- * E-mail: (GPA); (MLAL)
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30
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Zosky GR, Boylen CE, Wong RS, Smirk MN, Gutiérrez L, Woodward RC, Siah WS, Devine B, Maley F, Cook A. Variability and consistency in lung inflammatory responses to particles with a geogenic origin. Respirology 2014; 19:58-66. [PMID: 23796236 DOI: 10.1111/resp.12150] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 03/06/2013] [Accepted: 05/06/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVE Particulate matter <10 μm (PM10 ) is well recognized as being an important driver of respiratory health; however, the impact of PM10 of geogenic origin on inflammatory responses in the lung is poorly understood. This study aimed to assess the lung inflammatory response to community sampled geogenic PM10 . METHODS This was achieved by collecting earth material from two regional communities in Western Australia (Kalgoorlie-Boulder and Newman), extracting the PM10 fraction and exposing mice by intranasal instillation to these particles. The physicochemical characteristics of the particles were assessed and lung inflammatory responses were compared to control particles. The primary outcomes were cellular influx and cytokine production in the lungs of the exposed mice. RESULTS The physical and chemical characteristics of the PM10 from Kalgoorlie and Newman differed with the latter having a higher concentration of Fe and a larger median diameter. Control particles (2.5 μm polystyrene) caused a significant influx of inflammatory cells (neutrophils) with little production of proinflammatory cytokines. In contrast, the geogenic particles induced the production of MIP-2, IL-6 and a significant influx of neutrophils. Qualitatively, the response following exposure to particles from Kalgoorlie and Newman were consistent; however, the magnitude of the response was substantially higher in the mice exposed to particles from Newman. CONCLUSIONS The unique physicochemical characteristics of geogenic particles induced a proinflammatory response in the lung. These data suggest that particle composition should be considered when setting community standards for PM exposure, particularly in areas exposed to high geogenic particulate loads.
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Affiliation(s)
- Graeme R Zosky
- Telethon Institute for Child Health Research, The University of Western Australia, Perth, Western Australia; Centre for Child Health Research, The University of Western Australia, Perth, Western Australia; Cooperative Research Centre for Asthma and Airways, Sydney, New South Wales, Australia
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Quinton LJ, Mizgerd JP. Dynamics of lung defense in pneumonia: resistance, resilience, and remodeling. Annu Rev Physiol 2014; 77:407-30. [PMID: 25148693 DOI: 10.1146/annurev-physiol-021014-071937] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Pneumonia is initiated by microbes in the lung, but physiological processes integrating responses across diverse cell types and organ systems dictate the outcome of respiratory infection. Resistance, or actions of the host to eradicate living microbes, in the lungs involves a combination of innate and adaptive immune responses triggered by air-space infection. Resilience, or the ability of the host tissues to withstand the physiologically damaging effects of microbial and immune activities, is equally complex, precisely regulated, and determinative. Both immune resistance and tissue resilience are dynamic and change throughout the lifetime, but we are only beginning to understand such remodeling and how it contributes to the incidence of severe pneumonias, which diminishes as childhood progresses and then increases again among the elderly. Here, we review the concepts of resistance, resilience, and remodeling as they apply to pneumonia, highlighting recent advances and current significant knowledge gaps.
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McDermott AJ, Frank CR, Falkowski NR, McDonald RA, Young VB, Huffnagle GB. Role of GM-CSF in the inflammatory cytokine network that regulates neutrophil influx into the colonic mucosa during Clostridium difficile infection in mice. Gut Microbes 2014; 5:476-84. [PMID: 25045999 PMCID: PMC5915364 DOI: 10.4161/gmic.29964] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Clostridium difficile infection in antibiotic-treated mice results in acute colitis characterized by severe intestinal histopathology, robust neutrophil influx, and increased expression of numerous inflammatory cytokines, including GM-CSF. We utilized a neutralizing monoclonal antibody (mAb) against GM-CSF in a murine model to study the role of GM-CSF during acute C. difficile colitis. Cefoperazone-treated mice were challenged with C. difficile (strain 630) spores. Expression of GM-CSF was significantly increased in animals challenged with C. difficile. Treatment with an anti-GM-CSF mAb did not alter C. difficile colonization levels, weight loss, or expression of IL-22 and RegIIIγ. However, expression of the inflammatory cytokines TNFα and IL-1β, as well as iNOS, was significantly reduced following anti-GM-CSF treatment. Expression of the neutrophil chemokines CXCL1 and CXCL2, but not the chemokines CCL2, CCL4, CXCL9, and CXCL10, was significantly reduced by anti-GM-CSF treatment. Consistent with a decrease in neutrophil-attractant chemokine expression, there were fewer neutrophils in histology sections and a reduction in the expression of secretory leukocyte protease inhibitor (SLPI), a tissue anti-protease that protects against damage by secreted neutrophil elastase. These data indicate that GM-CSF plays a role in the inflammatory signaling network that drives neutrophil recruitment in response to C. difficile infection but does not appear to play a role in clearance of the infection.
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Affiliation(s)
- Andrew J McDermott
- Department of Microbiology and Immunology; University of Michigan Medical School; Ann Arbor, MI USA
| | - Charles R Frank
- Division of Pulmonary and Critical Care Medicine; Department of Internal Medicine; University of Michigan Medical School; Ann Arbor, MI USA
| | - Nicole R Falkowski
- Division of Pulmonary and Critical Care Medicine; Department of Internal Medicine; University of Michigan Medical School; Ann Arbor, MI USA
| | - Roderick A McDonald
- Division of Pulmonary and Critical Care Medicine; Department of Internal Medicine; University of Michigan Medical School; Ann Arbor, MI USA
| | - Vincent B Young
- Department of Microbiology and Immunology; University of Michigan Medical School; Ann Arbor, MI USA,Division of Infectious Diseases; Department of Internal Medicine; University of Michigan Medical School; Ann Arbor, MI USA
| | - Gary B Huffnagle
- Department of Microbiology and Immunology; University of Michigan Medical School; Ann Arbor, MI USA,Division of Pulmonary and Critical Care Medicine; Department of Internal Medicine; University of Michigan Medical School; Ann Arbor, MI USA,Correspondence to: Gary B Huffnagle;
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Yamamoto K, Ahyi ANN, Pepper-Cunningham ZA, Ferrari JD, Wilson AA, Jones MR, Quinton LJ, Mizgerd JP. Roles of lung epithelium in neutrophil recruitment during pneumococcal pneumonia. Am J Respir Cell Mol Biol 2014; 50:253-62. [PMID: 24010952 DOI: 10.1165/rcmb.2013-0114oc] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Epithelial cells line the respiratory tract and interface with the external world. Epithelial cells contribute to pulmonary inflammation, but specific epithelial roles have proven difficult to define. To discover unique epithelial activities that influence immunity during infection, we generated mice with nuclear factor-κB RelA mutated throughout all epithelial cells of the lung and coupled this approach with epithelial cell isolation from infected and uninfected lungs for cell-specific analyses of gene induction. The RelA mutant mice appeared normal basally, but in response to pneumococcus in the lungs they were unable to rapidly recruit neutrophils to the air spaces. Epithelial cells expressed multiple neutrophil-stimulating cytokines during pneumonia, all of which depended on RelA. Cytokine expression by nonepithelial cells was unaltered by the epithelial mutation of RelA. Epithelial cells were the predominant sources of CXCL5 and granulocyte-macrophage colony-stimulating factor (GM-CSF), whereas nonepithelial cells were major sources for other neutrophil-activating cytokines. Epithelial RelA mutation decreased whole lung levels of CXCL5 and GM-CSF during pneumococcal pneumonia, whereas lung levels of other neutrophil-recruiting factors were unaffected. Defective neutrophil recruitment in epithelial mutant mice could be rescued by administration of CXCL5 or GM-CSF. These results reveal a specialized immune function for the pulmonary epithelium, the induction of CXCL5 and GM-CSF, to accelerate neutrophil recruitment in the infected lung.
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Affiliation(s)
- Kazuko Yamamoto
- 1 Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
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34
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GM-CSF as a therapeutic target in inflammatory diseases. Mol Immunol 2013; 56:675-82. [PMID: 23933508 DOI: 10.1016/j.molimm.2013.05.002] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 04/29/2013] [Accepted: 05/04/2013] [Indexed: 11/22/2022]
Abstract
GM-CSF is a well-known haemopoietic growth factor that is used in the clinic to correct neutropaenia, usually as a result of chemotherapy. GM-CSF also has many pro-inflammatory functions and recent data implicates GM-CSF as a key factor in Th17 driven autoimmune inflammatory conditions. In this review we summarize the findings that have led to the development of GM-CSF antagonists for the treatment of autoimmune diseases like rheumatoid arthritis (RA) and discuss some results of recent clinical trials of these agents.
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Role of Th17 cells in the pathogenesis of CNS inflammatory demyelination. J Neurol Sci 2013; 333:76-87. [PMID: 23578791 DOI: 10.1016/j.jns.2013.03.002] [Citation(s) in RCA: 205] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 02/19/2013] [Accepted: 03/04/2013] [Indexed: 12/30/2022]
Abstract
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system (CNS). The etiology of MS is not well understood, but it is believed that myelin-specific CD4(+) T cells play a central role in initiating and orchestrating CNS inflammation. In this scenario, CD4(+) T cells, activated in the periphery, infiltrate the CNS, where, by secreting cytokines and chemokines, they start an inflammatory cascade. Given the central role of CD4(+) T cells in CNS autoimmunity, they have been studied extensively, principally by using experimental autoimmune encephalomyelitis (EAE), an animal model of MS. In the late 1980s, CD4(+) T cells, based on their cytokine production, were divided into two helper lineages, Th1 and Th2 cells. It was postulated that Th1 cells, which produce IFN-γ, mediate inflammation of the CNS in MS/EAE, while Th2 cells, which produce IL-4, have a beneficial effect in disease, because of their antagonistic effect on Th1 cells. The Th1/Th2 paradigm remained the prevailing view of MS/EAE pathogenesis until 2005, when a new lineage, Th17, was discovered. In a relatively short period of time it became apparent that Th17 cells, named after their hallmark cytokine, IL-17A, play a crucial role in many inflammatory diseases, including EAE, and likely in MS as well. The Th17 paradigm developed rapidly, initiating the debate of whether Th1 cells contribute to EAE/MS pathogenesis at all, or if they might even have a protective role due to their antagonistic effects on Th17 cells. Numerous findings support the view that Th17 cells play an essential role in autoimmune CNS inflammation, perhaps mainly in the initial phases of disease. Th1 cells likely contribute to pathogenesis, with their role possibly more pronounced later in disease. Hence, the current view on the role of Th cells in MS/EAE pathogenesis can be called the Th17/Th1 paradigm. It is certain that Th17 cells will continue to be the focus of intense investigation aimed at elucidating the pathogenesis of CNS autoimmunity.
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Cameron EJ, McSharry C, Chaudhuri R, Farrow S, Thomson NC. Long-term macrolide treatment of chronic inflammatory airway diseases: risks, benefits and future developments. Clin Exp Allergy 2013; 42:1302-12. [PMID: 22925316 DOI: 10.1111/j.1365-2222.2012.03979.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Macrolide antibiotics were discovered over 50 years ago and following their use as antimicrobials it became apparent that this group of antibiotics also possessed anti-inflammatory properties. Subsequent clinical trials showed benefits of macrolides as long-term adjuncts in the treatment of a spectrum of chronic inflammatory respiratory diseases, particularly diffuse panbronchiolitis, cystic fibrosis, post-transplant bronchiolitis obliterans and more recently chronic obstructive pulmonary disease (COPD). The evidence for efficacy of macrolides in the long-term treatment of chronic asthma and bronchiectasis is less well established. The mechanism(s) of action of macrolides in the treatment of these diseases remains unexplained, but may be due to their antibacterial and/or anti-inflammatory actions, which include reductions in interleukin-8 production, neutrophil migration and/or function. Macrolides have additional potentially beneficial properties including anti-viral actions and an ability to restore corticosteroid sensitivity. The increased prescribing of macrolides for long-term treatment could result in the development of microbial resistance and adverse drug effects. New macrolides have been developed which do not possess any antimicrobial activity and hence lack the ability to produce microbial resistance, but which still retain immunomodulatory effects. Potentially novel macrolides may overcome a significant barrier to the use of this type of drug for the long-term treatment of chronic inflammatory airway diseases.
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Affiliation(s)
- E J Cameron
- Respiratory Medicine, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK.
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Szponar B, Larsson L, Domagała-Kulawik J. Endotoxin markers in bronchoalveolar lavage fluid of patients with interstitial lung diseases. Multidiscip Respir Med 2012; 7:54. [PMID: 23259971 PMCID: PMC3551689 DOI: 10.1186/2049-6958-7-54] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 12/14/2012] [Indexed: 11/10/2022] Open
Abstract
UNLABELLED BACKGROUND Exposure to inhaled endotoxins (lipopolysaccharides, LPS) of Gram-negative bacteria commonly found in indoor environments and assessed in secondary tobacco smoke, has been associated with airway inflammation and asthma exacerbation. The bronchoalveolar lavage fluid (BALf) from patients with interstitial lung diseases (sarcoidosis, lung fibrosis, smoking-related ILD, eosinophilic disorders) was analyzed for the markers of lipopolysaccharide (LPS, endotoxin). METHODS BALf was obtained from patients with diffuse lung diseases: idiopathic pulmonary fibrosis (n = 42), sarcoidosis (n = 22), smoking-related-ILD (n = 11) and eosinophilic disorders (n = 8). Total cell count and differential cell count were performed. In addition, samples were analyzed for 3-hydroxy fatty acids (3-OHFAs) of 10-18 carbon chain lengths, as markers of LPS, by gas chromatography-tandem mass spectrometry. RESULTS The highest LPS concentration was found in patients with eosinophilic disorders and the lowest in patients with sarcoidosis (p< 0.05) followed by the lung fibrosis and the sr-ILD patients. The difference between LPS in BALf with extremely high eosinophil proportion (> 25%) and those with lower proportion was also significant (p = 0.014). A significant correlation was found between LPS and eosinophils, but not between LPS and lymphocytes, neutrophils, or macrophages count. CONCLUSIONS A positive relationship of LPS and eosinophilic pulmonary disorders may be linked to a persistent eosinophil activation mediated by Th2 pathway: chronic endotoxin exposure would intensify Th2 pathway resulting in fibrosis and, at the same time, eosinophil stimulation, and hence in eosinophilic pulmonary disorders.
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Affiliation(s)
- Bogumiła Szponar
- Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114, Wroclaw, Poland.
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Le Rouzic V, Wiedinger K, Zhou H. Attenuated mRNA expression of inflammatory mediators in neonatal rat lung following lipopolysaccharide treatment. J Inflamm Res 2012; 5:99-109. [PMID: 23055766 PMCID: PMC3461607 DOI: 10.2147/jir.s33737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Neonates are known to exhibit increased susceptibility to bacterial and viral infections and increasing evidence demonstrates that the increased susceptibility is related to their attenuated immune response to infections. The lung is equipped with an innate defense system involving both cellular and humoral mediators. The present study was performed to characterize the expression of inflammatory mediators in the lung of neonatal rats in comparison with older animals. Rats at postnatal day 1 (P1), P21, and P70 were treated with saline or 0.25 mg/kg lipopolysaccharide (LPS) via intraperitoneal injection. Two hours later, animals were sacrificed and the transcriptional response of key inflammatory mediators and enzyme activity of myeloperoxidase (MPO) in the lung of these animals were examined. LPS-induced messenger RNA (mRNA) expression of pro-inflammatory cytokines, namely interleukin (IL)-1β, IL-6, and tumor necrosis factor-α, antiinflammatory cytokines, namely IL-10 and IL-1 receptor antagonist (IL-1ra), and chemokines, namely macrophage inflammatory protein (MIP)-1β, MIP-2, and monocyte chemotactic protein-1, in P1 lung was much reduced compared to that in P21 and P70 animals at 2 hours postinjection. These data suggest that LPS-induced transcriptional response of cytokines and chemokines was much reduced in P1 lung even though the protein levels of these genes were not ascertained and mRNA levels of these genes may not reflect their final protein levels. MPO activity in LPS-treated P1 lung was also significantly attenuated compared to that in LPS-treated P70 lung, suggesting impaired neutrophil infiltration in P1 lung at 2 hours following LPS treatment. In parallel, the baseline mRNA expression of LPS-binding protein (LBP) in P1 lung was much lower than that in P21 and P70 lungs. While the protein level of LBP was not examined and the mRNA level of LBP may not reflect its final protein level, the reduced transcriptional response of cytokines and chemokines in P1 lung at 2 hours following LPS treatment may be attributed to lower LBP expression in P1 lung as compared to P21 and P70 lungs.
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Affiliation(s)
- Valerie Le Rouzic
- Department of Biological Sciences, Seton Hall University, South Orange, NJ, USA
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Mir-Kasimov M, Sturrock A, McManus M, Paine R. Effect of alveolar epithelial cell plasticity on the regulation of GM-CSF expression. Am J Physiol Lung Cell Mol Physiol 2012; 302:L504-11. [DOI: 10.1152/ajplung.00303.2010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Local pulmonary expression of granulocyte-macrophage colony-stimulating factor (GM-CSF) is critically important for defense of the pulmonary alveolar space. It is required for surfactant homeostasis and pulmonary innate immune responses and is protective against lung injury and aberrant repair. Alveolar epithelial cells (AEC) are a major source of GM-CSF; however, the control of homeostatic expression of GM-CSF is incompletely characterized. Increasing evidence suggests considerable plasticity of expression of AEC phenotypic characteristics. We tested the hypothesis that this plasticity extends to regulation of expression of GM-CSF using 1) MLE-12 cells (a commonly used murine cell line expressing some features of normal type II AEC, 2) primary murine AEC incubated under standard conditions [resulting in rapid spreading and loss of surfactant protein C (SP-C) expression with induction of the putative type I cell marker (T1α)], or 3) primary murine AEC on a hyaluronic acid/collagen matrix in defined medium, resulting in preservation of SP-C expression. AEC in standard cultures constitutively express abundant GM-CSF, with further induction in response to IL-1β but little response to TNF-α. In contrast, primary cells cultured to preserve SP-C expression and MLE-12 cells both express little GM-CSF constitutively, with significant induction in response to TNF-α and limited response to IL-1β. We conclude that constitutive and cytokine-induced expression of GM-CSF by AEC varies in concert with other cellular phenotypic characteristics. These changes may have important implications both for the maintenance of normal pulmonary homeostasis and for the process of repair following lung injury.
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Affiliation(s)
- Mustafa Mir-Kasimov
- Department of Veterans Affairs Medical Center; and Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Anne Sturrock
- Department of Veterans Affairs Medical Center; and Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Michael McManus
- Department of Veterans Affairs Medical Center; and Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Robert Paine
- Department of Veterans Affairs Medical Center; and Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, Utah
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Bozinovski S, Seow HJ, Crack PJ, Anderson GP, Vlahos R. Glutathione peroxidase-1 primes pro-inflammatory cytokine production after LPS challenge in vivo. PLoS One 2012; 7:e33172. [PMID: 22412999 PMCID: PMC3295802 DOI: 10.1371/journal.pone.0033172] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 02/09/2012] [Indexed: 01/03/2023] Open
Abstract
Reactive oxygen species produced during the innate immune response to LPS are important agents of anti-pathogen defence but may also cause oxidative lung damage. Glutathione peroxidase-1 (gpx-1) is an anti-oxidant enzyme that may protect lungs from such damage. We assessed the in vivo importance of gpx-1 in LPS-induced lung inflammation. Male wild-type (WT) or gpx-1 deficient (gpx-1−/−) mice were treated intranasally with PBS or 10 µg LPS and killed 3 and 24 h post LPS. Lungs were lavaged with PBS and then harvested for inflammatory marker expression. LPS caused an intense neutrophilia in WT BALF evident 3 and 24 h post challenge that was reduced in gpx-1−/− mice. In addition, LPS-treated gpx-1−/− mice had significantly fewer macrophages than LPS-treated WT mice. To understand the basis for this paradoxical reduction we assessed inflammatory cytokines and proteases at protein and transcript levels. MMP-9 expression and net gelatinase activity in BALF of gpx-1−/− mice treated with LPS for 3 and 24 h was no different to that found in LPS-treated WT mice. BALF from LPS-treated gpx-1−/− mice (3 h) had less TNF-α, MIP-2 and GM-CSF protein than LPS-treated WT mice. In contrast, LPS-induced increases in TNF-α, MIP-2 and GM-CSF mRNA expression in WT mice were similar to those observed in gpx-1−/− mice. These attenuated protein levels were unexpectedly not mirrored by reduced mRNA transcripts but were associated with increased 20S proteasome expression. Thus, these data suggest that gpx-1 primes pro-inflammatory cytokine production after LPS challenge in vivo.
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Affiliation(s)
- Steven Bozinovski
- Department of Pharmacology, The University of Melbourne, Victoria, Australia
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Quinton LJ. GM-CSF: a double dose of protection during pneumonia. Am J Physiol Lung Cell Mol Physiol 2012; 302:L445-6. [DOI: 10.1152/ajplung.00022.2012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Lee J. Quinton
- Boston University School of Medicine, The Pulmonary Center, Boston, Massachusetts
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Saffarzadeh M, Juenemann C, Queisser MA, Lochnit G, Barreto G, Galuska SP, Lohmeyer J, Preissner KT. Neutrophil extracellular traps directly induce epithelial and endothelial cell death: a predominant role of histones. PLoS One 2012; 7:e32366. [PMID: 22389696 PMCID: PMC3289648 DOI: 10.1371/journal.pone.0032366] [Citation(s) in RCA: 923] [Impact Index Per Article: 76.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Accepted: 01/26/2012] [Indexed: 12/11/2022] Open
Abstract
Neutrophils play an important role in innate immunity by defending the host organism against invading microorganisms. Antimicrobial activity of neutrophils is mediated by release of antimicrobial peptides, phagocytosis as well as formation of neutrophil extracellular traps (NET). These structures are composed of DNA, histones and granular proteins such as neutrophil elastase and myeloperoxidase. This study focused on the influence of NET on the host cell functions, particularly on human alveolar epithelial cells as the major cells responsible for gas exchange in the lung. Upon direct interaction with epithelial and endothelial cells, NET induced cytotoxic effects in a dose-dependent manner, and digestion of DNA in NET did not change NET-mediated cytotoxicity. Pre-incubation of NET with antibodies against histones, with polysialic acid or with myeloperoxidase inhibitor but not with elastase inhibitor reduced NET-mediated cytotoxicity, suggesting that histones and myeloperoxidase are responsible for NET-mediated cytotoxicity. Although activated protein C (APC) did decrease the histone-induced cytotoxicity in a purified system, it did not change NET-induced cytotoxicity, indicating that histone-dependent cytotoxicity of NET is protected against APC degradation. Moreover, in LPS-induced acute lung injury mouse model, NET formation was documented in the lung tissue as well as in the bronchoalveolar lavage fluid. These data reveal the important role of protein components in NET, particularly histones, which may lead to host cell cytotoxicity and may be involved in lung tissue destruction.
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Affiliation(s)
- Mona Saffarzadeh
- School of Medicine, Institute of Biochemistry, Justus-Liebig-University, Giessen, Germany
| | - Christiane Juenemann
- School of Medicine, Institute of Biochemistry, Justus-Liebig-University, Giessen, Germany
| | - Markus A. Queisser
- School of Medicine, Institute of Biochemistry, Justus-Liebig-University, Giessen, Germany
- Pulmonary and Critical Care Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Guenter Lochnit
- School of Medicine, Institute of Biochemistry, Justus-Liebig-University, Giessen, Germany
| | - Guillermo Barreto
- Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Sebastian P. Galuska
- School of Medicine, Institute of Biochemistry, Justus-Liebig-University, Giessen, Germany
| | - Juergen Lohmeyer
- Department of Internal Medicine II, Justus-Liebig-University, Giessen, Germany
| | - Klaus T. Preissner
- School of Medicine, Institute of Biochemistry, Justus-Liebig-University, Giessen, Germany
- * E-mail:
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Samson CM, Jurickova I, Molden E, Schreiner W, Colliver J, Bonkowski E, Han X, Trapnell BC, Denson LA. Granulocyte-macrophage colony stimulating factor blockade promotes ccr9(+) lymphocyte expansion in Nod2 deficient mice. Inflamm Bowel Dis 2011; 17:2443-55. [PMID: 21381154 PMCID: PMC3111853 DOI: 10.1002/ibd.21672] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Accepted: 01/12/2011] [Indexed: 01/02/2023]
Abstract
BACKGROUND Ileal involvement in Crohn's disease (CD) is associated with NOD2 mutations and granulocyte-macrophage colony stimulating factor autoantibodies (GM-CSF Ab), and GM-CSF blockade promotes ileitis in Nod2/Card15-deficient (C15KO) mice. RALDH2-expressing dendritic cells (DC) and IL-4 promote CCR9 imprinting and small bowel homing of T lymphocytes, in conjunction with CCL25 expression by ileal epithelial cells (IEC). We hypothesized that GM-CSF neutralization promotes ileal disease by modulating expression of CCL25 by IEC and CCR9 by T lymphocytes via Nod2-dependent and independent pathways. METHODS CCL25 and CCR9 expression were determined in pediatric CD patients stratified by GM-CSF Ab. Ileitis was induced in C15KO mice via GM-CSF Ab administration followed by nonsteroidal antiinflammatory drug (NSAID) exposure, and expression of CCL25, CCR9, FOXP3, intracellular cytokines, and RALDH2 was determined in IEC and immune cell populations. RESULTS The frequency of CCL25(+) IEC and CCR9(+) T lymphocytes was increased in CD patients with elevated GM-CSF Ab. In the murine model, GM-CSF blockade alone induced IEC CCL25 expression, and reduced the frequency of mesenteric lymph node (MLN) CD4(+) FOXP3(+) cells, while Card15 deficiency alone enhanced MLN DC RALDH2 expression. Both GM-CSF neutralization and Card15 deficiency were required for downregulation of MLN DC IL-10 expression; under these conditions NSAID exposure led to an expansion of IL-4(+) and IL-17(+) CCR9(+) lymphocytes in the ileum. CONCLUSIONS GM-CSF prevents ileal expansion of CCR9(+) lymphocytes via Nod2-dependent and independent pathways. CCR9 blockade may be beneficial in CD patients with elevated GM-CSF Ab.
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Affiliation(s)
- Charles M. Samson
- Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH,to whom correspondence should be addressed: MLC 2010, 3333 Burnet Avenue, Cincinnati, OH 45229, Tel: 513-636-4415, Fax: 513-636-5581,
| | - Ingrid Jurickova
- Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH
| | - Erin Molden
- Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH
| | - William Schreiner
- Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH
| | - Joshua Colliver
- Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH
| | - Erin Bonkowski
- Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH
| | - Xiaonan Han
- Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH
| | - Bruce C. Trapnell
- Pulmonary Biology, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH
| | - Lee A. Denson
- Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH
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Cook AD, Turner AL, Braine EL, Pobjoy J, Lenzo JC, Hamilton JA. Regulation of systemic and local myeloid cell subpopulations by bone marrow cell-derived granulocyte-macrophage colony-stimulating factor in experimental inflammatory arthritis. ACTA ACUST UNITED AC 2011; 63:2340-51. [PMID: 21809323 DOI: 10.1002/art.30354] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
OBJECTIVE Even though there are clinical trials assessing granulocyte-macrophage colony-stimulating factor (GM-CSF) blockade in rheumatoid arthritis (RA), questions remain as to how GM-CSF acts as a proinflammatory cytokine. The aims of this study on the regulation of arthritis progression by GM-CSF were to determine the source of the GM-CSF, whether there are systemic effects, the changes in synovial tissue leukocyte populations, and the arthritis model dependence on GM-CSF. METHODS Bone marrow chimeras were used to determine the source of GM-CSF required for the development of collagen-induced arthritis (CIA). The K/BxN serum-transfer model of arthritis was tested in GM-CSF(-/-) mice and using anti-GM-CSF monoclonal antibodies. Cell populations from arthritic mice were assessed by differential staining and flow cytometry. RESULTS In the CIA model, GM-CSF produced by bone marrow-derived cells was required for arthritis development. GM-CSF blockade, while ameliorating the development of CIA, was found to have systemic effects, limiting the increase in circulating Ly-6C(high) monocytes and neutrophils. GM-CSF blockade led to fewer synovial macrophages (both Ly-6C(high) and Ly-6C(low)), neutrophils, and lymphocytes. In the absence of GM-CSF, K/BxN serum-transfer arthritis initially developed normally; however, the numbers of Ly-6C(high) monocytes and synovial macrophages (both Ly-6C(high) and Ly-6C(low)) were again reduced, along with the peak disease severity and maintenance. CONCLUSION GM-CSF is a key player in two arthritis models, participating in interactions between hemopoietic cells, both locally and systemically, to control myeloid cell numbers as well as presumably to "activate" them. These results could be useful for the analysis of current clinical trials targeting GM-CSF in patients with RA.
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Affiliation(s)
- Andrew D Cook
- Department of Medicine, University of Melbourne, Parkville, Victoria, Australia.
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Bozinovski S, Vlahos R, Zhang Y, Lah LC, Seow HJ, Mansell A, Anderson GP. Carbonylation Caused by Cigarette Smoke Extract Is Associated with Defective Macrophage Immunity. Am J Respir Cell Mol Biol 2011; 45:229-36. [DOI: 10.1165/rcmb.2010-0272oc] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Control of macrophage lineage populations by CSF-1 receptor and GM-CSF in homeostasis and inflammation. Immunol Cell Biol 2011; 90:429-40. [PMID: 21727904 DOI: 10.1038/icb.2011.58] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
There is recent interest in the role of monocyte/macrophage subpopulations in pathology. How the hemopoietic growth factors, macrophage-colony stimulating factor (M-CSF or CSF-1) and granulocyte macrophage (GM)-CSF, regulate their in vivo development and function is unclear. A comparison is made here on the effect of CSF-1 receptor (CSF-1R) and GM-CSF blockade/depletion on such subpopulations, both in the steady state and during inflammation. In the steady state, administration of neutralizing anti-CSF-1R monoclonal antibody (mAb) rapidly (within 3-4 days) lowered, specifically, the number of the more mature Ly6C(lo) peripheral blood murine monocyte population and resident peritoneal macrophages; it also reduced the accumulation of murine exudate (Ly6C(lo)) macrophages in two peritonitis models and alveolar macrophages in lung inflammation, consistent with a non-redundant role for CSF-1 (or interleukin-34) in certain inflammatory reactions. A neutralizing mAb to GM-CSF also reduced inflammatory macrophage numbers during antigen-induced peritonitis and lung inflammation. In GM-CSF gene-deficient mice, a detailed kinetic analysis of monocyte/macrophage and neutrophil dynamics in antigen-induced peritonitis suggested that GM-CSF was acting, in part, systemically to maintain the inflammatory reaction. A model is proposed in which CSF-1R signaling controls the development of the macrophage lineage at a relatively late stage under steady state conditions and during certain inflammatory reactions, whereas in inflammation, GM-CSF can be required to maintain the response by contributing to the prolonged extravasation of immature monocytes and neutrophils. A correlation has been observed between macrophage numbers and the severity of certain inflammatory conditions, and it could be that CSF-1 and GM-CSF contribute to the control of these numbers in the ways proposed.
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Shand FHW, Langenbach SY, Keenan CR, Ma SP, Wheaton BJ, Schuliga MJ, Ziogas J, Stewart AG. In vitro and in vivo evidence for anti-inflammatory properties of 2-methoxyestradiol. J Pharmacol Exp Ther 2010; 336:962-72. [PMID: 21177477 DOI: 10.1124/jpet.110.174854] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
2-Methoxyestradiol (2MEO) is an endogenous metabolite of 17β-estradiol that interacts with estrogen receptors and microtubules. It has acute anti-inflammatory activity in animal models that is not attributable to known antiproliferative or antiangiogenic actions. Because macrophages are central to the innate inflammatory response, we examined whether suppression of macrophage activation by 2MEO could account for some of its anti-inflammatory effects. Inflammatory mediator production stimulated by lipopolysaccharide (LPS) and interferon-γ in the J774 murine macrophage cell line or human monocytes was measured after treatment with 2MEO or the anti-inflammatory agent dexamethasone. The effect of these agents on LPS-induced acute lung inflammation in mice was also examined. 2MEO suppressed J774 macrophage interleukin-6 and prostaglandin E₂ production (by 30 and 47%, respectively, at 10 μM) and human monocyte tumor necrosis factor-α production (by 60% at 3 μM). Estradiol had no effect on J774 macrophage activation, nor did the estrogen receptor antagonist 7α-[9-[(4,4,5,5,5-pentafluoropentyl)sulfinyl]nonyl]estra-1,3,5(10)-triene-3,17β-diol (ICI 182,780) prevent the effects of 2MEO. The actions of 2MEO were not mimicked by the microtubule-interfering agents colchicine or paclitaxel. In mice exposed to LPS, bronchoalveolar lavage protein content, a measure of vascular leak and epithelial injury, was reduced to a comparable extent (~54%) by treatment with 2MEO (150 mg · kg⁻¹) or dexamethasone (1 mg · kg⁻¹). In addition, 2MEO reduced LPS-induced interleukin-6 gene expression. Thus, 2MEO modulates macrophage activation in vitro and has high-dose acute anti-inflammatory activity in vivo. These findings are consistent with the acute anti-inflammatory actions of 2MEO being mediated in part by the suppression of macrophage activation.
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Affiliation(s)
- F H W Shand
- Department of Pharmacology, University of Melbourne, Parkville, Victoria, Australia
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Arora M, Poe SL, Oriss TB, Krishnamoorthy N, Yarlagadda M, Wenzel SE, Billiar TR, Ray A, Ray P. TLR4/MyD88-induced CD11b+Gr-1 int F4/80+ non-migratory myeloid cells suppress Th2 effector function in the lung. Mucosal Immunol 2010; 3:578-93. [PMID: 20664577 PMCID: PMC2958091 DOI: 10.1038/mi.2010.41] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In humans, environmental exposure to a high dose of lipopolysaccharide (LPS) protects from allergic asthma, the immunological underpinnings of which are not well understood. In mice, exposure to a high LPS dose blunted house dust mite-induced airway eosinophilia and T-helper 2 (Th2) cytokine production. Although adoptively transferred Th2 cells induced allergic airway inflammation in control mice, they were unable to do so in LPS-exposed mice. LPS promoted the development of a CD11b(+)Gr1(int)F4/80(+) lung-resident cell resembling myeloid-derived suppressor cells in a Toll-like receptor 4 and myeloid differentiation factor 88 (MyD88)-dependent manner that suppressed lung dendritic cell (DC)-mediated reactivation of primed Th2 cells. LPS effects switched from suppressive to stimulatory in MyD88(-/-) mice. Suppression of Th2 effector function was reversed by anti-interleukin-10 (IL-10) or inhibition of arginase 1. Lineage(neg) bone marrow progenitor cells could be induced by LPS to develop into CD11b(+)Gr1(int)F4/80(+)cells both in vivo and in vitro that when adoptively transferred suppressed allergen-induced airway inflammation in recipient mice. These data suggest that CD11b(+)Gr1(int)F4/80(+) cells contribute to the protective effects of LPS in allergic asthma by tempering Th2 effector function in the tissue.
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Affiliation(s)
- Meenakshi Arora
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Stephanie L. Poe
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Timothy B. Oriss
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Nandini Krishnamoorthy
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Manohar Yarlagadda
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Sally E. Wenzel
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Timothy R. Billiar
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Anuradha Ray
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Prabir Ray
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
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Lang CJ, Hansen M, Roscioli E, Jones J, Murgia C, Leigh Ackland M, Zalewski P, Anderson G, Ruffin R. Dietary zinc mediates inflammation and protects against wasting and metabolic derangement caused by sustained cigarette smoke exposure in mice. Biometals 2010; 24:23-39. [PMID: 20803234 DOI: 10.1007/s10534-010-9370-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2010] [Accepted: 08/18/2010] [Indexed: 01/20/2023]
Abstract
In mouse asthma models, inflammation can be modulated by zinc (Zn). Given that appetite loss, muscle wasting and poor nutrition are features of chronic obstructive pulmonary disease (COPD) and that poor dietary Zn intake is in itself accompanied by growth retardation and appetite loss, we hypothesised that dietary Zn limitation would not only worsen airway inflammation but also exaggerate metabolic effects of cigarette smoke (CS) exposure in mice. Conversely, Zn supplementation would lessen inflammation. Mice were exposed to CS [2× 2RF, 3×/day; 15 min/cigarette] and fed diets containing 2, 20 or 140 mg/kg Zn ad libitum. Airway cells were collected by bronchoalveolar lavage (BAL). Plasma Zn was measured by fluorometric assay. Inflammatory, metabolic and Zn transport markers were measured by real-time RT-PCR. Mice fed low Zn diets had less plasma labile zinc (0-0.18 μM) than mice fed moderate (0.61-0.98 μM) or high (0.77-1.1 μM) Zn diets (SDs 0.1-0.4, n = 8-10). Smoke exposure increased plasma and BAL labile Zn (1.5-2.5 fold, P < 0.001), bronchoalveolar macrophages (2.0 fold, P < 0.0001) and MT-1 (1.5 fold), MIP-2 (2.3 fold) and MMP-12 (3.5 fold) mRNA. Zn supplementation reduced alveolar macrophage numbers by 62 and 52% in sham and smoke-exposed mice, respectively (Zn effect: P = 0.011). Gastrocnemius, soleus and tibialis anterior muscle mass were affected by both smoke and dietary Zn in the order of 3-7%. The 50-60% reduction in alveolar macrophages in Zn-supplemented mice supports our evolving hypothesis that Zn is an important anti-inflammatory mediator of airway inflammation. Restoring airway Zn levels through dietary supplementation may lessen the severity of lung inflammation when Zn intake is low.
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Affiliation(s)
- Carol J Lang
- Department of Medicine, University of Adelaide, The Queen Elizabeth Hospital, Woodville, SA 5011, Australia.
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Peters T, Mann TS, Henry PJ. Inhibitory influence of protease-activated receptor 2 and E-prostanoid receptor stimulants in lipopolysaccharide models of acute airway inflammation. J Pharmacol Exp Ther 2010; 335:424-33. [PMID: 20688975 DOI: 10.1124/jpet.109.163253] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Protease-activated receptors (PARs) are widely expressed throughout the respiratory tract, and PAR(2) has been investigated as a potential drug target for inflammatory airway diseases. The primary focus of this study was to determine the extent to which PAR(2)-activating peptides modulate lipopolysaccharide (LPS)-induced airway neutrophilia in mice and establish the underlying mechanisms. Intranasal administration of LPS induced dose- and time-dependent increases in the number of neutrophils recovered from bronchoalveolar lavage (BAL) fluid of mice. Coadministration of the PAR(2)-activating peptide f-LIGRL inhibited LPS-induced neutrophilia at 3 and 6 h after inoculation. PAR(2)-mediated inhibition of LPS-induced neutrophilia was mimicked by prostaglandin E(2) (PGE(2)) and butaprost [selective E-prostanoid (EP(2)) receptor agonist], and blocked by parecoxib (cyclooxygenase 2 inhibitor) and 6-isopropoxy-9-oxoxanthene-2-carboxylic acid (AH6809) (EP(1)/EP(2) receptor antagonist). PAR(2)-activating peptides also blunted early increases in the levels of the key neutrophil chemoattractants keratinocyte-derived chemokine and macrophage inflammatory protein 2 (MIP-2) in the BAL of LPS-exposed mice. However, neither PAR(2)-activating peptides nor PGE(2) inhibited LPS-induced generation of MIP-2 in cultures of primary murine alveolar macrophages In summary, PAR(2)-activating peptides and PGE(2) suppressed LPS-induced neutrophilia in murine airways, independently of an inhibitory action on MIP-2 generation by alveolar macrophages.
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Affiliation(s)
- Terence Peters
- School of Medicine and Pharmacology, University of Western Australia, Stirling Highway, Nedlands, Australia, 6009.
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