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Roy RM, Allawzi A, Burns N, Sul C, Rubio V, Graham J, Stenmark K, Nozik ES, Tuder RM, Vohwinkel CU. Lactate produced by alveolar type II cells suppresses inflammatory alveolar macrophages in acute lung injury. FASEB J 2023; 37:e23316. [PMID: 37983890 PMCID: PMC10914122 DOI: 10.1096/fj.202301722r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/22/2023]
Abstract
Alveolar inflammation is a hallmark of acute lung injury (ALI), and its clinical correlate is acute respiratory distress syndrome-and it is as a result of interactions between alveolar type II cells (ATII) and alveolar macrophages (AM). In the setting of acute injury, the microenvironment of the intra-alveolar space is determined in part by metabolites and cytokines and is known to shape the AM phenotype. In response to ALI, increased glycolysis is observed in AT II cells, mediated by the transcription factor hypoxia-inducible factor (HIF) 1α, which has been shown to decrease inflammation. We hypothesized that in acute lung injury, lactate, the end product of glycolysis, produced by ATII cells shifts AMs toward an anti-inflammatory phenotype, thus mitigating ALI. We found that local intratracheal delivery of lactate improved ALI in two different mouse models. Lactate shifted cytokine expression of murine AMs toward increased IL-10, while decreasing IL-1 and IL-6 expression. Mice with ATII-specific deletion of Hif1a and mice treated with an inhibitor of lactate dehydrogenase displayed exacerbated ALI and increased inflammation with decreased levels of lactate in the bronchoalveolar lavage fluid; however, all those parameters improved with intratracheal lactate. When exposed to LPS (to recapitulate an inflammatory stimulus as it occurs in ALI), human primary AMs co-cultured with alveolar epithelial cells had reduced inflammatory responses. Taken together, these studies reveal an innate protective pathway, in which lactate produced by ATII cells shifts AMs toward an anti-inflammatory phenotype and dampens excessive inflammation in ALI.
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Affiliation(s)
- René M. Roy
- Children’s Hospital Colorado, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Ayed Allawzi
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Nana Burns
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Christina Sul
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Victoria Rubio
- Children’s Hospital Colorado, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Jessica Graham
- Children’s Hospital Colorado, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kurt Stenmark
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Eva S. Nozik
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Rubin M. Tuder
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Division of Pulmonary Sciences and Critical Care Medicine, Program in Translational Lung Research, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Christine U. Vohwinkel
- Division of Pediatric Critical Care, Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
- Developmental Lung Biology, Cardiovascular Pulmonary Research Laboratories, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
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2
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Luo J, Yao Z, Ye C, Liu Y. Genome-wide analysis of RNA-binding protein co-expression with alternative splicing events in acute respiratory distress syndrome following hematopoietic stem cell transplantation. Medicine (Baltimore) 2023; 102:e34599. [PMID: 37565892 PMCID: PMC10419425 DOI: 10.1097/md.0000000000034599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 07/13/2023] [Indexed: 08/12/2023] Open
Abstract
Patients undergoing allogeneic hematopoietic stem cell transplantation (HSCT) are at an increased risk of developing severe acute respiratory distress syndrome (ARDS), which is characterized by peripheral bilateral patchy lung involvement. The regulatory network of RNA-binding protein (RBP)-alternative splicing (AS) in ARDS following HSCT has not been investigated. We hypothesize that RBP-AS plays a regulatory role during HSCT-ARDS. The published ARDS transcriptome data after HSCT (GSE84439) were downloaded, and the transcriptome data of 13 mRNAs were obtained by sequencing the peripheral blood of 5 HSCT-ARDS patients and 8 ARDS patients through high-throughput sequencing technology. Systematic analysis of downloaded data was performed to obtain differentially expressed RBPs, and the differentially alternative spliced pre-mRNAs in HSCT-ARDS and control groups were used to explore the global gene RBP-AS regulatory network. A total of 1769 differentially expressed genes and 4714 regulated alternative splicing events were identified in peripheral blood from HSCT-ARDS, of which 254 genes had both differential expression and differential AS. In addition, 128 RBPs were identified, of which HDGF, PCBP2, RIOK3, CISD2, and TRIM21, DDX58, MOV10 showed significantly increased or decreased expression in the HSCT-ARDS. RBPs with decreased expression had antiviral activity, while those with increased expression were involved in ROS, fibrosis, and negative viral resistance. The RBP-RASE-RASG regulatory network is constructed. It is related to the dysregulation of antiviral immunomodulation, imbalance in ROS homeostasis and pro-pulmonary fibrosis, which are involved in the development of HSCT-ARDS.
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Affiliation(s)
- Jinghua Luo
- Department of Pediatrics, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
| | - Zhenhua Yao
- Department of Pediatrics, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
- The Second Clinical College of Nanchang University, Nanchang, Jiangxi, P. R. China
| | - Chunfeng Ye
- Department of Pediatrics, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
| | - Yanling Liu
- Department of Pediatrics, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P. R. China
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Vohwinkel CU, Burns N, Coit E, Yuan X, Vladar EK, Sul C, Schmidt EP, Carmeliet P, Stenmark K, Nozik ES, Tuder RM, Eltzschig HK. HIF1A-dependent induction of alveolar epithelial PFKFB3 dampens acute lung injury. JCI Insight 2022; 7:e157855. [PMID: 36326834 PMCID: PMC9869967 DOI: 10.1172/jci.insight.157855] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
Acute lung injury (ALI) is a severe form of lung inflammation causing acute respiratory distress syndrome in patients. ALI pathogenesis is closely linked to uncontrolled alveolar inflammation. We hypothesize that specific enzymes of the glycolytic pathway could function as key regulators of alveolar inflammation. Therefore, we screened isolated alveolar epithelia from mice exposed to ALI induced by injurious ventilation to assess their metabolic responses. These studies pointed us toward a selective role for isoform 3 of the 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase (PFKFB3). Pharmacologic inhibition or genetic deletion of Pfkfb3 in alveolar epithelia (Pfkfb3loxP/loxP SPC-ER-Cre+ mice) was associated with profound increases in ALI during injurious mechanical ventilation or acid instillation. Studies in genetic models linked Pfkfb3 expression and function to Hif1a. Not only did intratracheal pyruvate instillation reconstitute Pfkfb3loxP/loxP or Hif1aloxP/loxP SPC-ER-Cre+ mice, but pyruvate was also effective in ALI treatment of wild-type mice. Finally, proof-of-principle studies in human lung biopsies demonstrated increased PFKFB3 staining in injured lungs and colocalized PFKFB3 to alveolar epithelia. These studies reveal a specific role for PFKFB3 in counterbalancing alveolar inflammation and lay the groundwork for novel metabolic therapeutic approaches during ALI.
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Affiliation(s)
- Christine U. Vohwinkel
- Cardio Vascular Pulmonary Research Lab and
- Section of Critical Care Medicine, Department of Pediatrics, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Nana Burns
- Cardio Vascular Pulmonary Research Lab and
- Section of Critical Care Medicine, Department of Pediatrics, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Ethan Coit
- Cardio Vascular Pulmonary Research Lab and
- Section of Critical Care Medicine, Department of Pediatrics, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Xiaoyi Yuan
- Department of Anesthesiology, Critical Care and Pain Medicine, University of Texas Health Science Center Houston, Houston, Texas, USA
| | - Eszter K. Vladar
- Program in Translational Lung Research, Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Christina Sul
- Section of Critical Care Medicine, Department of Pediatrics, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Eric P. Schmidt
- Program in Translational Lung Research, Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology and Leuven Cancer Institute (LKI), KU Leuven, VIB Center for Cancer Biology, VIB, Leuven, Belgium
- Laboratory of Angiogenesis and Vascular Heterogeneity, Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Kurt Stenmark
- Cardio Vascular Pulmonary Research Lab and
- Section of Critical Care Medicine, Department of Pediatrics, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Eva S. Nozik
- Cardio Vascular Pulmonary Research Lab and
- Section of Critical Care Medicine, Department of Pediatrics, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Rubin M. Tuder
- Cardio Vascular Pulmonary Research Lab and
- Program in Translational Lung Research, Division of Pulmonary Sciences and Critical Care Medicine, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Holger K. Eltzschig
- Department of Anesthesiology, Critical Care and Pain Medicine, University of Texas Health Science Center Houston, Houston, Texas, USA
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Battaglini D, Al-Husinat L, Normando AG, Leme AP, Franchini K, Morales M, Pelosi P, Rocco PRM. Personalized medicine using omics approaches in acute respiratory distress syndrome to identify biological phenotypes. Respir Res 2022; 23:318. [PMCID: PMC9675217 DOI: 10.1186/s12931-022-02233-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/01/2022] [Indexed: 11/21/2022] Open
Abstract
In the last decade, research on acute respiratory distress syndrome (ARDS) has made considerable progress. However, ARDS remains a leading cause of mortality in the intensive care unit. ARDS presents distinct subphenotypes with different clinical and biological features. The pathophysiologic mechanisms of ARDS may contribute to the biological variability and partially explain why some pharmacologic therapies for ARDS have failed to improve patient outcomes. Therefore, identifying ARDS variability and heterogeneity might be a key strategy for finding effective treatments. Research involving studies on biomarkers and genomic, metabolomic, and proteomic technologies is increasing. These new approaches, which are dedicated to the identification and quantitative analysis of components from biological matrixes, may help differentiate between different types of damage and predict clinical outcome and risk. Omics technologies offer a new opportunity for the development of diagnostic tools and personalized therapy in ARDS. This narrative review assesses recent evidence regarding genomics, proteomics, and metabolomics in ARDS research.
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Affiliation(s)
- Denise Battaglini
- Anesthesia and Intensive Care, San Martino Policlinico Hospital, Instituto di Ricovero e Cura a Carattere Scientifico (IRCCS) for Oncology and Neuroscience, Genoa, Italy ,grid.5606.50000 0001 2151 3065Department of Surgical Science and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy ,grid.5841.80000 0004 1937 0247Department of Medicine, University of Barcelona, Barcelona, Spain
| | - Lou’i Al-Husinat
- grid.14440.350000 0004 0622 5497Department of Clinical Medical Sciences, Faculty of Medicine, Yarmouk University, P.O. Box 566, Irbid, 21163 Jordan
| | - Ana Gabriela Normando
- grid.452567.70000 0004 0445 0877Brazilian Biosciences National Laboratory, LNBio, Brazilian Center for Research in Energy and Materials, CNPEM, Campinas, Brazil
| | - Adriana Paes Leme
- grid.452567.70000 0004 0445 0877Brazilian Biosciences National Laboratory, LNBio, Brazilian Center for Research in Energy and Materials, CNPEM, Campinas, Brazil
| | - Kleber Franchini
- grid.452567.70000 0004 0445 0877Brazilian Biosciences National Laboratory, LNBio, Brazilian Center for Research in Energy and Materials, CNPEM, Campinas, Brazil
| | - Marcelo Morales
- grid.8536.80000 0001 2294 473XLaboratory of Cellular and Molecular Physiology, Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paolo Pelosi
- Anesthesia and Intensive Care, San Martino Policlinico Hospital, Instituto di Ricovero e Cura a Carattere Scientifico (IRCCS) for Oncology and Neuroscience, Genoa, Italy ,grid.5606.50000 0001 2151 3065Department of Surgical Science and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Patricia RM Rocco
- grid.8536.80000 0001 2294 473XLaboratory of Pulmonary Investigation, Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Daks A, Petukhov A, Fedorova O, Shuvalov O, Kizenko A, Tananykina E, Vasileva E, Semenov O, Bottrill A, Barlev N. The RNA-binding protein HuR is a novel target of Pirh2 E3 ubiquitin ligase. Cell Death Dis 2021; 12:581. [PMID: 34091597 PMCID: PMC8179929 DOI: 10.1038/s41419-021-03871-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 05/18/2021] [Accepted: 05/24/2021] [Indexed: 11/24/2022]
Abstract
The RING-finger protein Pirh2 is a p53 family-specific E3 ubiquitin ligase. Pirh2 also ubiquitinates several other important cellular factors and is involved in carcinogenesis. However, its functional role in other cellular processes is poorly understood. To address this question, we performed a proteomic search for novel interacting partners of Pirh2. Using the GST-pulldown approach combined with LC-MS/MS, we revealed 225 proteins that interacted with Pirh2. We found that, according to the GO description, a large group of Pirh2-associated proteins belonged to the RNA metabolism group. Importantly, one of the identified proteins from that group was an RNA-binding protein ELAVL1 (HuR), which is involved in the regulation of splicing and protein stability of several oncogenic proteins. We demonstrated that Pirh2 ubiquitinated the HuR protein facilitating its proteasome-mediated degradation in cells. Importantly, the Pirh2-mediated degradation of HuR occurred in response to heat shock, thereby affecting the survival rate of HeLa cells under elevated temperature. Functionally, Pirh2-mediated degradation of HuR augmented the level of c-Myc expression, whose RNA level is otherwise attenuated by HuR. Taken together, our data indicate that HuR is a new target of Pirh2 and this functional interaction contributes to the heat-shock response of cancer cells affecting their survival.
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Affiliation(s)
- Alexandra Daks
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation.
| | - Alexey Petukhov
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation.,Almazov National Medical Research Centre, Institute of Hematology, 197341, St Petersburg, Russian Federation
| | - Olga Fedorova
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Oleg Shuvalov
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Alena Kizenko
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Elizaveta Tananykina
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Elena Vasileva
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Oleg Semenov
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation
| | - Andrew Bottrill
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Nickolai Barlev
- Institute of Cytology, Russian Academy of Sciences, 194064, St Petersburg, Russian Federation. .,Moscow Institute of Physics and Technology, 141700, Dolgoprudny, Moscow Region, Russian Federation.
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Vohwinkel CU, Coit EJ, Burns N, Elajaili H, Hernandez‐Saavedra D, Yuan X, Eckle T, Nozik E, Tuder RM, Eltzschig HK. Targeting alveolar-specific succinate dehydrogenase A attenuates pulmonary inflammation during acute lung injury. FASEB J 2021; 35:e21468. [PMID: 33687752 PMCID: PMC8250206 DOI: 10.1096/fj.202002778r] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 01/22/2023]
Abstract
Acute lung injury (ALI) is an inflammatory lung disease, which manifests itself in patients as acute respiratory distress syndrome (ARDS). Previous studies have implicated alveolar-epithelial succinate in ALI protection. Therefore, we hypothesized that targeting alveolar succinate dehydrogenase SDH A would result in elevated succinate levels and concomitant lung protection. Wild-type (WT) mice or transgenic mice with targeted alveolar-epithelial Sdha or hypoxia-inducible transcription factor Hif1a deletion were exposed to ALI induced by mechanical ventilation. Succinate metabolism was assessed in alveolar-epithelial via mass spectrometry as well as redox measurements and evaluation of lung injury. In WT mice, ALI induced by mechanical ventilation decreased SDHA activity and increased succinate in alveolar-epithelial. In vitro, cell-permeable succinate decreased epithelial inflammation during stretch injury. Mice with inducible alveolar-epithelial Sdha deletion (Sdhaloxp/loxp SPC-CreER mice) revealed reduced lung inflammation, improved alveolar barrier function, and attenuated histologic injury. Consistent with a functional role of succinate to stabilize HIF, Sdhaloxp/loxp SPC-CreER experienced enhanced Hif1a levels during hypoxia or ALI. Conversely, Hif1aloxp/loxp SPC-CreER showed increased inflammation with ALI induced by mechanical ventilation. Finally, wild-type mice treated with intra-tracheal dimethlysuccinate were protected during ALI. These data suggest that targeting alveolar-epithelial SDHA dampens ALI via succinate-mediated stabilization of HIF1A. Translational extensions of our studies implicate succinate treatment in attenuating alveolar inflammation in patients suffering from ARDS.
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Affiliation(s)
- Christine U. Vohwinkel
- Developmental Lung BiologyCardiovascular Pulmonary Research LaboratoriesDivision of Pulmonary Sciences and Critical Care MedicineDivision of Pediatric Critical CareDepartments of Medicine and PediatricsUniversity of ColoradoAuroraCOUSA
| | - Ethan J. Coit
- Developmental Lung BiologyCardiovascular Pulmonary Research LaboratoriesDivision of Pulmonary Sciences and Critical Care MedicineDivision of Pediatric Critical CareDepartments of Medicine and PediatricsUniversity of ColoradoAuroraCOUSA
| | - Nana Burns
- Developmental Lung BiologyCardiovascular Pulmonary Research LaboratoriesDivision of Pulmonary Sciences and Critical Care MedicineDivision of Pediatric Critical CareDepartments of Medicine and PediatricsUniversity of ColoradoAuroraCOUSA
| | - Hanan Elajaili
- Developmental Lung BiologyCardiovascular Pulmonary Research LaboratoriesDivision of Pulmonary Sciences and Critical Care MedicineDivision of Pediatric Critical CareDepartments of Medicine and PediatricsUniversity of ColoradoAuroraCOUSA
| | | | - Xiaoyi Yuan
- Department of AnesthesiologyMcGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTXUSA
| | - Tobias Eckle
- Department of AnesthesiologyUniversity of Colorado ‐ Anschutz Medical CampusAuroraCOUSA
| | - Eva Nozik
- Developmental Lung BiologyCardiovascular Pulmonary Research LaboratoriesDivision of Pulmonary Sciences and Critical Care MedicineDivision of Pediatric Critical CareDepartments of Medicine and PediatricsUniversity of ColoradoAuroraCOUSA
| | - Rubin M. Tuder
- Division of Pulmonary Sciences and Critical Care MedicineUniversity of ColoradoAuroraCOUSA
| | - Holger K. Eltzschig
- Department of AnesthesiologyMcGovern Medical SchoolThe University of Texas Health Science Center at HoustonHoustonTXUSA
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Interactome Analysis of iPSC Secretome and Its Effect on Macrophages In Vitro. Int J Mol Sci 2021; 22:ijms22020958. [PMID: 33478018 PMCID: PMC7835982 DOI: 10.3390/ijms22020958] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/15/2021] [Accepted: 01/17/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Macrophages play essential role in repair, regeneration and tissue remodeling. Role of macrophages in progression of lung fibrosis is established. Secretome of Induced pluripotent stem cells (iPSC-CM) has shown to reduce lung fibrosis and regulate macrophage phenotype, however exact mechanism is not known. Using advanced bioinformatics analysis by gene network analysis in this study we identified two components AAP and ELAVL-1 present in the iPSC-CM playing important role in regulation of macrophage phenotype. In this invitro study we confirmed experimentally that AAP and ELAVL1 play essential role by changing the profibrotic phenotype of the macrophages to pro resolution macrophages. We demonstrate reduction in gene expression and cytokine secretion of profibrotic macrophages after iPSC-CM treatment. Our study confirms antifibrotic and regenerative potential of iPSC-CM. Abstract Induced pluripotent stem cell secretome (iPSC-CM) mitigate organ injury and help in repair. Macrophages play a critical role in tissue repair and regeneration and can be directed to promote tissue repair by iPSC-CM, although the exact mechanisms are not known. In the current investigative study, we evaluated the possible mechanism by which iPSC-CM regulates the phenotype and secretory pattern of macrophages in vitro. Macrophages were obtained from human peripheral blood mononuclear cells and differentiated to various subpopulations and treated with either iPSC-CM or control media in vitro. Macrophage phenotype was assessed by flow cytometry, gene expression changes by qRT PCR and secretory pattern by multiplex protein analysis. The protein and gene interaction network revealed the involvement of Amyloid precursor protein (APP) and ELAV-like protein 1 (ELAVL-1) both present in the iPSC-CM to play an important role in regulating the macrophage phenotype and their secretory pattern. This exploratory study reveals, in part, the possible mechanism and identifies two potential targets by which iPSC-CM regulate macrophages and help in repair and regeneration.
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Liu WL, Chiang FT, Kao JTW, Chiou SH, Lin HL. GSK3 modulation in acute lung injury, myocarditis and polycystic kidney disease-related aneurysm. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2020; 1867:118798. [PMID: 32693109 PMCID: PMC7368652 DOI: 10.1016/j.bbamcr.2020.118798] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/10/2020] [Accepted: 07/11/2020] [Indexed: 12/17/2022]
Abstract
GSK3 are involved in different physical and pathological conditions and inflammatory regulated by macrophages contribute to significant mechanism. Infection stimuli may modulate GSK3 activity and influence host cell adaption, immune cells infiltration or cytokine expressions. To further address the role of GSK3 modulation in macrophages, the signal transduction of three major organs challenged by endotoxin, virus and genetic inherited factors are briefly introduced (lung injury, myocarditis and autosomal dominant polycystic kidney disease). As a result of pro-inflammatory and anti-inflammatory functions of GSK3 in different microenvironments and stages of macrophages (M1/M2), the rational resolution should be considered by adequately GSK3.
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Affiliation(s)
- Wei-Lun Liu
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan,Division of Critical Care Medicine, Department of Emergency and Critical Care Medicine, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan,Center For Innovation, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Fu-Tien Chiang
- Department of Internal Medicine, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan,Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| | - Juliana Tze-Wah Kao
- Division of Nephrology, Department of Internal Medicine, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei, Taiwan,Division of Nephrology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shih-Hwa Chiou
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan,Institute of Pharmacology, National Yang-Ming University, Taipei, Taiwan,Genomic Research Center, Academia Sinica, Taipei, Taiwan
| | - Heng-Liang Lin
- Center For Innovation, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan; Division of Fund Managing, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan.
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9
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GSK3: A Kinase Balancing Promotion and Resolution of Inflammation. Cells 2020; 9:cells9040820. [PMID: 32231133 PMCID: PMC7226814 DOI: 10.3390/cells9040820] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 12/11/2022] Open
Abstract
GSK3 has been implicated for years in the regulation of inflammation and addressed in a plethora of scientific reports using a variety of experimental (disease) models and approaches. However, the specific role of GSK3 in the inflammatory process is still not fully understood and controversially discussed. Following a detailed overview of structure, function, and various regulatory levels, this review focusses on the immunoregulatory functions of GSK3, including the current knowledge obtained from animal models. Its impact on pro-inflammatory cytokine/chemokine profiles, bacterial/viral infections, and the modulation of associated pro-inflammatory transcriptional and signaling pathways is discussed. Moreover, GSK3 contributes to the resolution of inflammation on multiple levels, e.g., via the regulation of pro-resolving mediators, the clearance of apoptotic immune cells, and tissue repair processes. The influence of GSK3 on the development of different forms of stimulation tolerance is also addressed. Collectively, the role of GSK3 as a kinase balancing the initiation/perpetuation and the amelioration/resolution of inflammation is highlighted.
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10
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Zhou H, Rao Y, Sun Q, Liu Y, Zhou X, Chen Y, Chen J. MiR-4458/human antigen R (HuR) modulates PBX3 mRNA stability in melanoma tumorigenesis. Arch Dermatol Res 2020; 312:665-673. [PMID: 32157373 DOI: 10.1007/s00403-020-02051-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 12/18/2022]
Abstract
Melanoma, a malignancy of the melanocyte, is characterized as the most fatal skin cancer with an increasing incidence. Of note, in spite of great attempts made for better treatment, the therapeutic outcome is barely satisfactory. Abnormal expression of microRNAs (miRNAs) acting as oncogenes or tumor suppressor genes, is frequently implicated in multiple human cancers, including melanoma. Here, we found that miRNA-4458, a reportedly tumor-suppressive miRNA in several cancers, was downregulated in melanoma cells. Besides, our findings indicated that microRNA-4458 (miR-4458) hindered cell proliferation and migration, yet induced apoptosis in melanoma. Mechanical interaction of miR-4458 and PBX3 mRNA, thereby inhibiting PBX3 expression in melanoma cells, was also presented in this work. Human antigen R (HuR) was reported to be greatly upregulated in diverse cancers and HuR-dependent stabilization of target gene contributed a lot to tumor progression. In this study, it revealed the stabilization of PBX3 mRNA by HuR, thereby boosting PBX3 expression. Lastly, we concluded that miR-4458 and HuR modulated the expression of PBX3 in a competitive manner in melanoma tumorigenesis, which might yield a novel insight into the molecular pathogenesis of melanoma.
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Affiliation(s)
- Henghua Zhou
- Department of Pathology, Shanghai Ninth People's Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Center for Specialty Strategy Research of Shanghai JiaoTong University China Hospital Development Institute, Shanghai, 200011, China
| | - Yamin Rao
- Department of Pathology, Shanghai Ninth People's Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Center for Specialty Strategy Research of Shanghai JiaoTong University China Hospital Development Institute, Shanghai, 200011, China
| | - Qilin Sun
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Center for Specialty Strategy Research of Shanghai JiaoTong University China Hospital Development Institute, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Yang Liu
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Center for Specialty Strategy Research of Shanghai JiaoTong University China Hospital Development Institute, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Xiaobo Zhou
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Center for Specialty Strategy Research of Shanghai JiaoTong University China Hospital Development Institute, No. 639 Zhizaoju Road, Shanghai, 200011, China
| | - Ying Chen
- Department of Pathology, Shanghai Ninth People's Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Center for Specialty Strategy Research of Shanghai JiaoTong University China Hospital Development Institute, Shanghai, 200011, China.
| | - Jun Chen
- Department of Dermatology and Dermatologic Surgery, Shanghai Ninth People's Hospital, Affiliated to Shanghai Jiaotong University School of Medicine, Center for Specialty Strategy Research of Shanghai JiaoTong University China Hospital Development Institute, No. 639 Zhizaoju Road, Shanghai, 200011, China.
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11
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Hoegl S, Burns N, Angulo M, Francis D, Osborne CM, Mills TW, Blackburn MR, Eltzschig HK, Vohwinkel CU. Capturing the multifactorial nature of ARDS - "Two-hit" approach to model murine acute lung injury. Physiol Rep 2019; 6:e13648. [PMID: 29595879 PMCID: PMC5875538 DOI: 10.14814/phy2.13648] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 02/12/2018] [Accepted: 02/14/2018] [Indexed: 02/06/2023] Open
Abstract
Severe acute respiratory distress syndrome (ARDS) presents typically with an initializing event, followed by the need for mechanical ventilation. Most animal models of ALI are limited by the fact that they focus on a singular cause of acute lung injury (ALI) and therefore fail to mimic the complex, multifactorial pathobiology of ARDS. To better capture this scenario, we provide a comprehensive characterization of models of ALI combining two injuries: intra tracheal (i.t.) instillation of LPS or hypochloric acid (HCl) followed by ventilator‐induced lung injury (VILI). We hypothesized, that mice pretreated with LPS or HCl prior to VILI and thus receiving a (“two‐hit injury”) will sustain a superadditive lung injury when compared to VILI. Mice were allocated to following treatment groups: control with i.t. NaCl, ventilation with low peak inspiratory pressure (PIP), i.t. HCl, i.t. LPS, VILI (high PIP), HCl i.t. followed by VILI and LPS i.t. followed by VILI. Severity of injury was determined by protein content and MPO activity in bronchoalveolar lavage (BAL), the expression of inflammatory cytokines and histopathology. Mice subjected to VILI after HCl or LPS instillation displayed augmented lung injury, compared to singular lung injury. However, mice that received i.t. LPS prior to VILI showed significantly increased inflammatory lung injury compared to animals that underwent i.t. HCl followed by VILI. The two‐hit lung injury models described, resulting in additive but differential acute lung injury recaptures the clinical relevant multifactorial etiology of ALI and could be a valuable tool in translational research.
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Affiliation(s)
- Sandra Hoegl
- Organ Protection Program, School of Medicine, Department of Anesthesiology, University of Colorado, Aurora, Colorado.,Developmental Lung Biology, Cardio Vascular Pulmonary Research Laboratories, Division of Pulmonary Sciences and Critical Care Medicine, Division of Pediatric Critical Care, Departments of Medicine and Pediatrics, University of Colorado, Anschutz Medical Campus, Aurora, Colorado
| | - Nana Burns
- Feinberg School of Medicine, Division of Pulmonary and Critical Care, Northwestern University, Chicago, Illinois
| | - Martín Angulo
- Department of Respiratory Therapy, Colorado Children's Hospital, Aurora, Colorado
| | - Daniel Francis
- Department of Biochemistry and Molecular Biology, University of Texas Health Science Center Houston, Houston, Texas
| | - Christopher M Osborne
- Feinberg School of Medicine, Division of Pulmonary and Critical Care, Northwestern University, Chicago, Illinois
| | - Tingting W Mills
- Department of Anesthesiology, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Michael R Blackburn
- Department of Anesthesiology, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Holger K Eltzschig
- Organ Protection Program, School of Medicine, Department of Anesthesiology, University of Colorado, Aurora, Colorado
| | - Christine U Vohwinkel
- Organ Protection Program, School of Medicine, Department of Anesthesiology, University of Colorado, Aurora, Colorado.,Feinberg School of Medicine, Division of Pulmonary and Critical Care, Northwestern University, Chicago, Illinois
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12
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Tomlinson JE, Žygelytė E, Grenier JK, Edwards MG, Cheetham J. Temporal changes in macrophage phenotype after peripheral nerve injury. J Neuroinflammation 2018; 15:185. [PMID: 29907154 PMCID: PMC6003127 DOI: 10.1186/s12974-018-1219-0] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 05/29/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Macrophages play a key role in peripheral nerve repair and demonstrate complex phenotypes that are highly dependent on microenvironmental cues. METHODS We determined temporal changes in macrophage gene expression over time using RNA sequencing after fluorescence-activated cell sorting (FACS) macrophage populations from injured peripheral nerve. We identified key upstream regulators and dominant pathways using ingenuity pathway analysis and confirmed these changes with NanoString technology. We then investigate the effects of extreme polarizers of macrophage phenotype (IL4 and IFNγ) on nerve regeneration. We determined macrophage gene expression in vivo at the site of peripheral nerve injury with NanoString technology, and assessed recovery from sciatic nerve injury by cranial tibial muscle weights and retrograde labeling motor neurons in mice with deletion of IL4 or IFNγ receptors. RESULTS We demonstrate that IL4R and IFNγR deletions provide complementary responses to polarization, and alter expression of genes associated with angiogenesis and axonal extension, but do not influence recovery from peripheral nerve transection at 8 weeks after repair. CONCLUSIONS Overall, this study provides a framework to evaluate the phenotype of macrophages over time, and provides a broader and more precise assessment of gene expression changes than has previously been commonly used. This data suggests ways in which polarization may be modulated to improve repair.
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Affiliation(s)
- Joy E. Tomlinson
- Cornell University College of Veterinary Medicine, Ithaca, NY USA
| | - Emilija Žygelytė
- Cornell University College of Veterinary Medicine, Ithaca, NY USA
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13
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Hamacher J, Hadizamani Y, Borgmann M, Mohaupt M, Männel DN, Moehrlen U, Lucas R, Stammberger U. Cytokine-Ion Channel Interactions in Pulmonary Inflammation. Front Immunol 2018; 8:1644. [PMID: 29354115 PMCID: PMC5758508 DOI: 10.3389/fimmu.2017.01644] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 11/10/2017] [Indexed: 12/12/2022] Open
Abstract
The lungs conceptually represent a sponge that is interposed in series in the bodies’ systemic circulation to take up oxygen and eliminate carbon dioxide. As such, it matches the huge surface areas of the alveolar epithelium to the pulmonary blood capillaries. The lung’s constant exposure to the exterior necessitates a competent immune system, as evidenced by the association of clinical immunodeficiencies with pulmonary infections. From the in utero to the postnatal and adult situation, there is an inherent vital need to manage alveolar fluid reabsorption, be it postnatally, or in case of hydrostatic or permeability edema. Whereas a wealth of literature exists on the physiological basis of fluid and solute reabsorption by ion channels and water pores, only sparse knowledge is available so far on pathological situations, such as in microbial infection, acute lung injury or acute respiratory distress syndrome, and in the pulmonary reimplantation response in transplanted lungs. The aim of this review is to discuss alveolar liquid clearance in a selection of lung injury models, thereby especially focusing on cytokines and mediators that modulate ion channels. Inflammation is characterized by complex and probably time-dependent co-signaling, interactions between the involved cell types, as well as by cell demise and barrier dysfunction, which may not uniquely determine a clinical picture. This review, therefore, aims to give integrative thoughts and wants to foster the unraveling of unmet needs in future research.
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Affiliation(s)
- Jürg Hamacher
- Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland.,Internal Medicine V - Pneumology, Allergology, Respiratory and Environmental Medicine, Faculty of Medicine, Saarland University, Saarbrücken, Germany.,Lungen- und Atmungsstiftung Bern, Bern, Switzerland
| | - Yalda Hadizamani
- Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland.,Lungen- und Atmungsstiftung Bern, Bern, Switzerland
| | - Michèle Borgmann
- Internal Medicine and Pneumology, Lindenhofspital, Bern, Switzerland.,Lungen- und Atmungsstiftung Bern, Bern, Switzerland
| | - Markus Mohaupt
- Internal Medicine, Sonnenhofspital Bern, Bern, Switzerland
| | | | - Ueli Moehrlen
- Paediatric Visceral Surgery, Universitäts-Kinderspital Zürich, Zürich, Switzerland
| | - Rudolf Lucas
- Department of Pharmacology and Toxicology, Vascular Biology Center, Medical College of Georgia, Augusta, GA, United States
| | - Uz Stammberger
- Lungen- und Atmungsstiftung Bern, Bern, Switzerland.,Novartis Institutes for Biomedical Research, Translational Clinical Oncology, Novartis Pharma AG, Basel, Switzerland
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14
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Suber T, Mallampalli RK. An Emerging Role for Megalin as a Regulator of Protein Leak in Acute Lung Injury. Am J Respir Cell Mol Biol 2017; 57:504-505. [PMID: 29090957 DOI: 10.1165/rcmb.2017-0224ed] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
- Tomeka Suber
- 1 Department of Medicine University of Pittsburgh Pittsburgh, Pennsylvania and
| | - Rama K Mallampalli
- 1 Department of Medicine University of Pittsburgh Pittsburgh, Pennsylvania and.,2 Medical Specialty Service Line Veterans Affairs Pittsburgh Healthcare System Pittsburgh, Pennsylvania
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15
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Hoffman O, Burns N, Vadász I, Eltzschig HK, Edwards MG, Vohwinkel CU. Correction: Detrimental ELAVL-1/HuR-dependent GSK3β mRNA stabilization impairs resolution in acute respiratory distress syndrome. PLoS One 2017; 12:e0176134. [PMID: 28407018 PMCID: PMC5391081 DOI: 10.1371/journal.pone.0176134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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