1
|
Wang L, Xiao J, Zhang B, Hou A. Epigenetic modifications in the development of bronchopulmonary dysplasia: a review. Pediatr Res 2024:10.1038/s41390-024-03167-7. [PMID: 38570557 DOI: 10.1038/s41390-024-03167-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 02/25/2024] [Accepted: 03/07/2024] [Indexed: 04/05/2024]
Abstract
While perinatal medicine advancements have bolstered survival outcomes for premature infants, bronchopulmonary dysplasia (BPD) continues to threaten their long-term health. Gene-environment interactions, mediated by epigenetic modifications such as DNA methylation, histone modification, and non-coding RNA regulation, take center stage in BPD pathogenesis. Recent discoveries link methylation variations across biological pathways with BPD. Also, the potential reversibility of histone modifications fuels new treatment avenues. The review also highlights the promise of utilizing mesenchymal stem cells and their exosomes as BPD therapies, given their ability to modulate non-coding RNA, opening novel research and intervention possibilities. IMPACT: The complexity and universality of epigenetic modifications in the occurrence and development of bronchopulmonary dysplasia were thoroughly discussed. Both molecular and cellular mechanisms contribute to the diverse nature of epigenetic changes, suggesting the need for deeper biochemical techniques to explore these molecular alterations. The utilization of innovative cell-specific drug delivery methods like exosomes and extracellular vesicles holds promise in achieving precise epigenetic regulation.
Collapse
Affiliation(s)
- Lichuan Wang
- Department of Pediatrics, Sheng Jing Hospital of China Medical University, Shenyang, China
| | - Jun Xiao
- Department of Pediatrics, Sheng Jing Hospital of China Medical University, Shenyang, China
| | - Bohan Zhang
- Department of Pediatrics, Sheng Jing Hospital of China Medical University, Shenyang, China
| | - Ana Hou
- Department of Pediatrics, Sheng Jing Hospital of China Medical University, Shenyang, China.
| |
Collapse
|
2
|
Ling S, Kwak D, Takuwa Y, Ge C, Franceschi R, Kim KK. Discoidin domain receptor 2 signaling through PIK3C2α in fibroblasts promotes lung fibrosis. J Pathol 2024; 262:505-516. [PMID: 38332727 PMCID: PMC10940211 DOI: 10.1002/path.6253] [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: 06/08/2023] [Revised: 10/30/2023] [Accepted: 12/12/2023] [Indexed: 02/10/2024]
Abstract
Pulmonary fibrosis, especially idiopathic pulmonary fibrosis (IPF), portends significant morbidity and mortality, and current therapeutic options are suboptimal. We have previously shown that type I collagen signaling through discoidin domain receptor 2 (DDR2), a receptor tyrosine kinase expressed by fibroblasts, is critical for the regulation of fibroblast apoptosis and progressive fibrosis. However, the downstream signaling pathways for DDR2 remain poorly defined and could also be attractive potential targets for therapy. A recent phosphoproteomic approach indicated that PIK3C2α, a poorly studied member of the PI3 kinase family, could be a downstream mediator of DDR2 signaling. We hypothesized that collagen I/DDR2 signaling through PIK3C2α regulates fibroblast activity during progressive fibrosis. To test this hypothesis, we found that primary murine fibroblasts and IPF-derived fibroblasts stimulated with endogenous or exogenous type I collagen led to the formation of a DDR2/PIK3C2α complex, resulting in phosphorylation of PIK3C2α. Fibroblasts treated with an inhibitor of PIK3C2α or with deletion of PIK3C2α had fewer markers of activation after stimulation with TGFβ and more apoptosis after stimulation with a Fas-activating antibody. Finally, mice with fibroblast-specific deletion of PIK3C2α had less fibrosis after bleomycin treatment than did littermate control mice with intact expression of PIK3Cα. Collectively, these data support the notion that collagen/DDR2/PIK3C2α signaling is critical for fibroblast function during progressive fibrosis, making this pathway a potential target for antifibrotic therapy. © 2024 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
Collapse
Affiliation(s)
- Song Ling
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Doyun Kwak
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Yoh Takuwa
- Department of Physiology, Kanazawa University School of Medicine, Kanazawa Ishikawa, Japan
| | - Chunxi Ge
- Departments of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Renny Franceschi
- Departments of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Kevin K. Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| |
Collapse
|
3
|
Ren J, Deng G, Li R, Jin X, Liu J, Li J, Gao Y, Zhang J, Wang X, Wang G. Possible pharmacological targets and mechanisms of sivelestat in protecting acute lung injury. Comput Biol Med 2024; 170:108080. [PMID: 38306776 DOI: 10.1016/j.compbiomed.2024.108080] [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: 08/16/2023] [Revised: 01/16/2024] [Accepted: 01/27/2024] [Indexed: 02/04/2024]
Abstract
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a life-threatening syndrome induced by various diseases, including COVID-19. In the progression of ALI/ARDS, activated neutrophils play a central role by releasing various inflammatory mediators, including elastase. Sivelestat is a selective and competitive inhibitor of neutrophil elastase. Although its protective effects on attenuating ALI/ARDS have been confirmed in several models of lung injury, clinical trials have presented inconsistent results on its therapeutic efficacy. Therefore, in this report, we used a network pharmacology approach coupled with animal experimental validation to unravel the concrete therapeutic targets and biological mechanisms of sivelestat in treating ALI/ARDS. In bioinformatic analyses, we found 118 targets of sivelestat against ALI/ARDS, and identified six hub genes essential for sivelestat treatment of ALI/ARDS, namely ERBB2, GRB2, PTK2, PTPN11, ESR1, and CCND1. We also found that sivelestat targeted several genes expressed in human lung microvascular endothelial cells after lipopolysaccharide (LPS) treatment at 4 h (ICAM-1, PTGS2, RND1, BCL2A1, TNF, CA2, and ADORA2A), 8 h (ICAM-1, PTGS2, RND1, BCL2A1, MMP1, BDKRB1 and SLC40A1), and 24 h (ICAM-1). Further animal experiments showed that sivelestat was able to attenuate LPS-induced ALI by inhibiting the overexpression of ICAM-1, VCAM-1, and PTGS2 and increasing the phosphorylation of PTK2. Taken together, the bioinformatic findings and experimentative data indicate that the therapeutic effects of sivelestat against ALI/ARDS mainly focus on the early stage of ALI/ARDS by pharmacological modulation of inflammatory reaction, vascular endothelial injury, and cell apoptosis-related molecules.
Collapse
Affiliation(s)
- Jiajia Ren
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Guorong Deng
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ruohan Li
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xuting Jin
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jueheng Liu
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jiamei Li
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ya Gao
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jingjing Zhang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiaochuang Wang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Gang Wang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Key Laboratory of Surgical Critical Care and Life Support, Xi'an Jiaotong University, Ministry of Education, Xi'an, China.
| |
Collapse
|
4
|
Kwak D, Bradley PB, Subbotina N, Ling S, Teitz-Tennenbaum S, Osterholzer JJ, Sisson TH, Kim KK. CD36/Lyn kinase interactions within macrophages promotes pulmonary fibrosis in response to oxidized phospholipid. Respir Res 2023; 24:314. [PMID: 38098035 PMCID: PMC10722854 DOI: 10.1186/s12931-023-02629-6] [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: 05/17/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023] Open
Abstract
Recent data from human studies and animal models have established roles for type II alveolar epithelial cell (AEC2) injury/apoptosis and monocyte/macrophage accumulation and activation in progressive lung fibrosis. Although the link between these processes is not well defined, we have previously shown that CD36-mediated uptake of apoptotic AEC2s by lung macrophages is sufficient to drive fibrosis. Importantly, apoptotic AEC2s are rich in oxidized phospholipids (oxPL), and amongst its multiple functions, CD36 serves as a scavenger receptor for oxPL. Recent studies have established a role for oxPLs in alveolar scarring, and we hypothesized that uptake and accrual of oxPL by CD36 would cause a macrophage phenotypic change that promotes fibrosis. To test this hypothesis, we treated wild-type and CD36-null mice with the oxPL derivative oxidized phosphocholine (POVPC) and found that CD36-null mice were protected from oxPL-induced scarring. Compared to WT mice, fewer macrophages accumulated in the lungs of CD36-null animals, and the macrophages exhibited a decreased accumulation of intracellular oxidized lipid. Importantly, the attenuated accrual of oxPL in CD36-null macrophages was associated with diminished expression of the profibrotic mediator, TGFβ. Finally, the pathway linking oxPL uptake and TGFβ expression was found to require CD36-mediated activation of Lyn kinase. Together, these observations elucidate a causal pathway that connects AEC2 injury with lung macrophage activation via CD36-mediated uptake of oxPL and suggest several potential therapeutic targets.
Collapse
Affiliation(s)
- Doyun Kwak
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, 109 Zina Pitcher Place, BSRB 4061, Ann Arbor, MI, 48109, USA
| | - Patrick B Bradley
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, 109 Zina Pitcher Place, BSRB 4061, Ann Arbor, MI, 48109, USA
| | - Natalia Subbotina
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, 109 Zina Pitcher Place, BSRB 4061, Ann Arbor, MI, 48109, USA
| | - Song Ling
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, 109 Zina Pitcher Place, BSRB 4061, Ann Arbor, MI, 48109, USA
| | - Seagal Teitz-Tennenbaum
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, 109 Zina Pitcher Place, BSRB 4061, Ann Arbor, MI, 48109, USA
- Pulmonary Section, Department of Medicine, VA Ann Arbor Health System, Ann Arbor, MI, 48105, USA
| | - John J Osterholzer
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, 109 Zina Pitcher Place, BSRB 4061, Ann Arbor, MI, 48109, USA
- Pulmonary Section, Department of Medicine, VA Ann Arbor Health System, Ann Arbor, MI, 48105, USA
| | - Thomas H Sisson
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, 109 Zina Pitcher Place, BSRB 4061, Ann Arbor, MI, 48109, USA
| | - Kevin K Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, 109 Zina Pitcher Place, BSRB 4061, Ann Arbor, MI, 48109, USA.
| |
Collapse
|
5
|
Ling S, Kwak D, Kim KK. Inhibition of discoidin domain receptor 2 reveals kinase-dependent and kinase-independent functions in regulating fibroblast activity. Am J Physiol Lung Cell Mol Physiol 2023; 325:L342-L351. [PMID: 37489274 PMCID: PMC10625828 DOI: 10.1152/ajplung.00066.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/16/2023] [Accepted: 07/11/2023] [Indexed: 07/26/2023] Open
Abstract
Progressive pulmonary fibrosis is a devastating condition and current treatment is suboptimal. There has been considerable interest in the role of tyrosine kinase signaling as mediators of pro- and antifibrotic processes. Nintedanib is a nonspecific tyrosine kinase that has been shown to have therapeutic benefit in lung fibrosis. However, the precise mechanism of action remains unclear because nintedanib inhibits several tyrosine kinases, which are often expressed on multiple cell types with different activities during fibrosis. Discoidin domain receptor 2 (DDR2) has been suggested as a potential target of nintedanib. DDR2 is a receptor tyrosine kinase that is activated by fibrillar collagens such as type I collagen. DDR2 is primarily expressed by fibroblasts. The effectiveness of specifically targeting DDR2 signaling during fibrosis remains undefined. In the present study, we show that nintedanib acts as a direct and indirect inhibitor of DDR2. We then utilize a novel allosteric inhibitor of DDR2, WRG-28, which blocks ligand binding and activation of DDR2. We find that WRG-28 augments fibroblast apoptosis and attenuates fibrosis. Finally, we show that fibroblast type I collagen autocrine signaling is regulated by DDR2 through both kinase-dependent and kinase-independent functions of DDR2. These findings highlight the importance of type I collagen autocrine signaling by fibroblasts during fibrosis and demonstrate that DDR2 has a central role in this pathway making it a potential therapeutic target.NEW & NOTEWORTHY Type I collagen is a major component of fibrosis and can signal through cell surface receptors such as discoidin domain receptor 2 (DDR2). DDR2 activation can lead to further collagen deposition by fibroblasts setting up a profibrotic positive feedback loop. In this report, we find that inhibition of DDR2 with nintedanib or a specific DDR2 inhibitor, WRG-28, can disrupt this cycle and prevent fibrosis through augmented fibroblast apoptosis and inhibited activation.
Collapse
Affiliation(s)
- Song Ling
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - Doyun Kwak
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| | - Kevin K Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States
| |
Collapse
|
6
|
Nabhan AN, Webster JD, Adams JJ, Blazer L, Everrett C, Eidenschenk C, Arlantico A, Fleming I, Brightbill HD, Wolters PJ, Modrusan Z, Seshagiri S, Angers S, Sidhu SS, Newton K, Arron JR, Dixit VM. Targeted alveolar regeneration with Frizzled-specific agonists. Cell 2023; 186:2995-3012.e15. [PMID: 37321220 DOI: 10.1016/j.cell.2023.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 03/24/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023]
Abstract
Wnt ligands oligomerize Frizzled (Fzd) and Lrp5/6 receptors to control the specification and activity of stem cells in many species. How Wnt signaling is selectively activated in different stem cell populations, often within the same organ, is not understood. In lung alveoli, we show that distinct Wnt receptors are expressed by epithelial (Fzd5/6), endothelial (Fzd4), and stromal (Fzd1) cells. Fzd5 is uniquely required for alveolar epithelial stem cell activity, whereas fibroblasts utilize distinct Fzd receptors. Using an expanded repertoire of Fzd-Lrp agonists, we could activate canonical Wnt signaling in alveolar epithelial stem cells via either Fzd5 or, unexpectedly, non-canonical Fzd6. A Fzd5 agonist (Fzd5ag) or Fzd6ag stimulated alveolar epithelial stem cell activity and promoted survival in mice after lung injury, but only Fzd6ag promoted an alveolar fate in airway-derived progenitors. Therefore, we identify a potential strategy for promoting regeneration without exacerbating fibrosis during lung injury.
Collapse
Affiliation(s)
- Ahmad N Nabhan
- Department of Physiological Chemistry, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA.
| | - Joshua D Webster
- Department of Pathology, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
| | - Jarret J Adams
- AntlerA Therapeutics, 348 Hatch Drive, Foster City, CA 94404, USA
| | - Levi Blazer
- AntlerA Therapeutics, 348 Hatch Drive, Foster City, CA 94404, USA
| | - Christine Everrett
- Department of Molecular Discovery and Cancer Cell Biology, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
| | - Celine Eidenschenk
- Department of Molecular Discovery and Cancer Cell Biology, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
| | - Alexander Arlantico
- Department of Translational Immunology, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
| | - Isabel Fleming
- Department of Physiological Chemistry, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
| | - Hans D Brightbill
- Department of Translational Immunology, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
| | - Paul J Wolters
- Department of Medicine, School of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Zora Modrusan
- Department of Microchemistry, Proteomics, Lipidomics and Next Generation Sequencing, Genentech, South San Francisco, CA 94080, USA
| | | | - Stephane Angers
- AntlerA Therapeutics, 348 Hatch Drive, Foster City, CA 94404, USA; Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 1A2, Canada; Department of Biochemistry, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada; Donnelly Centre, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Sachdev S Sidhu
- AntlerA Therapeutics, 348 Hatch Drive, Foster City, CA 94404, USA; School of Pharmacy, University of Waterloo, Kitchener, ON N2G 1C5, Canada
| | - Kim Newton
- Department of Physiological Chemistry, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA.
| | - Joseph R Arron
- Department of Immunology, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
| | - Vishva M Dixit
- Department of Physiological Chemistry, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA.
| |
Collapse
|
7
|
McElhinney K, Irnaten M, O’Brien C. p53 and Myofibroblast Apoptosis in Organ Fibrosis. Int J Mol Sci 2023; 24:ijms24076737. [PMID: 37047710 PMCID: PMC10095465 DOI: 10.3390/ijms24076737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/23/2023] [Accepted: 03/28/2023] [Indexed: 04/07/2023] Open
Abstract
Organ fibrosis represents a dysregulated, maladaptive wound repair response that results in progressive disruption of normal tissue architecture leading to detrimental deterioration in physiological function, and significant morbidity/mortality. Fibrosis is thought to contribute to nearly 50% of all deaths in the Western world with current treatment modalities effective in slowing disease progression but not effective in restoring organ function or reversing fibrotic changes. When physiological wound repair is complete, myofibroblasts are programmed to undergo cell death and self-clearance, however, in fibrosis there is a characteristic absence of myofibroblast apoptosis. It has been shown that in fibrosis, myofibroblasts adopt an apoptotic-resistant, highly proliferative phenotype leading to persistent myofibroblast activation and perpetuation of the fibrotic disease process. Recently, this pathological adaptation has been linked to dysregulated expression of tumour suppressor gene p53. In this review, we discuss p53 dysregulation and apoptotic failure in myofibroblasts and demonstrate its consistent link to fibrotic disease development in all types of organ fibrosis. An enhanced understanding of the role of p53 dysregulation and myofibroblast apoptosis may aid in future novel therapeutic and/or diagnostic strategies in organ fibrosis.
Collapse
Affiliation(s)
- Kealan McElhinney
- UCD Clinical Research Centre, Mater Misericordiae University Hospital, D07 R2WY Dublin, Ireland
| | - Mustapha Irnaten
- UCD Clinical Research Centre, Mater Misericordiae University Hospital, D07 R2WY Dublin, Ireland
| | - Colm O’Brien
- UCD Clinical Research Centre, Mater Misericordiae University Hospital, D07 R2WY Dublin, Ireland
| |
Collapse
|
8
|
Lu Y, Tang K, Wang S, Tian Z, Fan Y, Li B, Wang M, Zhao J, Xie J. Dach1 deficiency drives alveolar epithelium apoptosis in pulmonary fibrosis via modulating C-Jun/Bim activity. Transl Res 2023; 257:54-65. [PMID: 36754276 DOI: 10.1016/j.trsl.2023.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/10/2023] [Accepted: 01/30/2023] [Indexed: 02/08/2023]
Abstract
Dysregulation of type II alveolar epithelial cells (AECII) plays a vital role in the initiation and development of pulmonary fibrosis (PF). Dachshund homolog 1 (Dach1), frequently expressed in epithelial cells with stem cell potential, controls cell proliferation, apoptosis, and cell cycle in tissue development and disease process. In this study, we demonstrated that the lungs collected from PF patients and mice of Bleomycin (BLM)-treated were characterized by low expression of Dachshund homolog 1 (Dach1), especially in AECII. Dach1 deficiency in the alveolar epithelium exacerbated PF in BLM-treated mice, as evidenced by reduced pulmonary function and increased expression of fibrosis markers. Rather, treatment with lung-specific overexpression of Dach1 alleviated histopathological damage, lung compliance, and fibrosis in BLM-treated mice. Moreover, overexpression of Dach1 could inhibit epithelial apoptosis in vitro. Conversely, primary AECII with Dach1 depletion were more susceptible to apoptosis in vivo. Mechanically, Dach1 combined with C-Jun protooncogene selectively bound to the promoter of B-cell lymphoma 2 interacting mediators of cell death (Bim), by which it repressed Bim expression and alleviated epithelial apoptosis. Taken together, our data support that Dach1 in AECII contributes to the progression of PF and may be a viable target for the prevention and treatment of PF.
Collapse
Affiliation(s)
- Yanjiao Lu
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kum Tang
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Shanshan Wang
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhen Tian
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yan Fan
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Boyu Li
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Meijia Wang
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jianping Zhao
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Jungang Xie
- Department of Respiratory and Critical Care Medicine, National Clinical Research Center of Respiratory Disease, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| |
Collapse
|
9
|
Jadaun PK, Chatterjee S. COVID-19 and dys-regulation of pulmonary endothelium: implications for vascular remodeling. Cytokine Growth Factor Rev 2021; 63:69-77. [PMID: 34728151 PMCID: PMC9611904 DOI: 10.1016/j.cytogfr.2021.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/05/2021] [Accepted: 10/13/2021] [Indexed: 01/08/2023]
Abstract
Coronavirus disease-2019 (COVID-19),
the disease caused by severe acute respiratory syndrome-coronavirus-2,
has claimed more than 4.4 million lives worldwide (as of 20 August 2021).
Severe cases of the disease often result in respiratory distress due to
cytokine storm, and mechanical ventilation is required. Although, the
lungs are the primary organs affected by the disease, more evidence on
damage to the heart, kidney, and liver is emerging. A common link in
these connections is the cardiovascular network. Inner lining of the
blood vessels, called endothelium, is formed by a single layer of
endothelial cells. Several clinical manifestations involving the
endothelium have been reported, such as its activation via
immunomodulation, endotheliitis, thrombosis, vasoconstriction, and
distinct intussusceptive angiogenesis (IA), a unique and rapid process of
blood-vessel formation by splitting a vessel into two lumens. In fact,
the virus directly infects the endothelium via TMPRSS2 spike glycoprotein
priming to facilitate ACE-2-mediated viral entry. Recent studies have
indicated a significant increase in remodeling of the pulmonary vascular
bed via intussusception in patients with COVID-19. However, the lack of
circulatory biomarkers for IA limits its detection in COVID-19
pathogenesis. In this review, we describe the implications of
angiogenesis in COVID-19, unique features of the pulmonary vascular bed
and its remodeling, and a rapid and non-invasive assessment of IA to
overcome the technical limitations in patients with
COVID-19.
Collapse
Affiliation(s)
- Pavitra K Jadaun
- Hepatology, Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Suvro Chatterjee
- Department of Biotechnology, University of Burdwan, Golap Bag Campus, Burdwan, India.
| |
Collapse
|
10
|
Agarwal M, Goheen M, Jia S, Ling S, White ES, Kim KK. Type I Collagen Signaling Regulates Opposing Fibrotic Pathways through α 2β 1 Integrin. Am J Respir Cell Mol Biol 2020; 63:613-622. [PMID: 32692932 DOI: 10.1165/rcmb.2020-0150oc] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Fibrosis is characterized by fibroblast activation, leading to matrix remodeling culminating in a stiff, type I collagen-rich fibrotic matrix. Alveolar epithelial cell (AEC) apoptosis is also a major feature of fibrogenesis, and AEC apoptosis is sufficient to initiate a robust lung fibrotic response. TGF-β (transforming growth factor-β) is a major driver of fibrosis and can induce both AEC apoptosis and fibroblast activation. We and others have previously shown that changes in extracellular matrix stiffness and composition can regulate the cellular response to TGF-β. In the present study, we find that type I collagen signaling promotes TGF-β-mediated fibroblast activation and inhibits TGF-β-induced AEC death. Fibroblasts cultured on type I collagen or fibrotic decellularized lung matrix had augmented activation in response to TGF-β, whereas AECs on cultured on type I collagen or fibrotic lung matrix were more resistant to TGF-β-induced apoptosis. Both of these responses were mediated by integrin α2β1, a major collagen receptor. AECs treated with an α2 integrin inhibitor or with deletion of α2 integrin had loss of collagen-mediated protection from apoptosis. We found that mice with fibroblast-specific deletion of α2 integrin were protected from fibrosis whereas mice with AEC-specific deletion of α2 integrin had more lung injury and a greater fibrotic response to bleomycin. Intrapulmonary delivery of an α2 integrin-activating collagen peptide inhibited AEC apoptosis in vitro and in vivo and attenuated the fibrotic response. These studies underscore the need for a thorough understanding of the divergent response to matrix signaling.
Collapse
Affiliation(s)
- Manisha Agarwal
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Mitchell Goheen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Shijing Jia
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Song Ling
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Eric S White
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Kevin K Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| |
Collapse
|
11
|
Phan THG, Paliogiannis P, Nasrallah GK, Giordo R, Eid AH, Fois AG, Zinellu A, Mangoni AA, Pintus G. Emerging cellular and molecular determinants of idiopathic pulmonary fibrosis. Cell Mol Life Sci 2020; 78:2031-2057. [PMID: 33201251 PMCID: PMC7669490 DOI: 10.1007/s00018-020-03693-7] [Citation(s) in RCA: 162] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 10/08/2020] [Accepted: 10/28/2020] [Indexed: 12/17/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF), the most common form of idiopathic interstitial pneumonia, is a progressive, irreversible, and typically lethal disease characterized by an abnormal fibrotic response involving vast areas of the lungs. Given the poor knowledge of the mechanisms underpinning IPF onset and progression, a better understanding of the cellular processes and molecular pathways involved is essential for the development of effective therapies, currently lacking. Besides a number of established IPF-associated risk factors, such as cigarette smoking, environmental factors, comorbidities, and viral infections, several other processes have been linked with this devastating disease. Apoptosis, senescence, epithelial-mesenchymal transition, endothelial-mesenchymal transition, and epithelial cell migration have been shown to play a key role in IPF-associated tissue remodeling. Moreover, molecules, such as chemokines, cytokines, growth factors, adenosine, glycosaminoglycans, non-coding RNAs, and cellular processes including oxidative stress, mitochondrial dysfunction, endoplasmic reticulum stress, hypoxia, and alternative polyadenylation have been linked with IPF development. Importantly, strategies targeting these processes have been investigated to modulate abnormal cellular phenotypes and maintain tissue homeostasis in the lung. This review provides an update regarding the emerging cellular and molecular mechanisms involved in the onset and progression of IPF.
Collapse
Affiliation(s)
- Thị Hằng Giang Phan
- Department of Immunology and Pathophysiology, University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Panagiotis Paliogiannis
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100, Sassari, Italy
| | - Gheyath K Nasrallah
- Department of Biomedical Sciences, College of Health Sciences Member of QU Health, Qatar University, P.O. Box 2713, Doha, Qatar. .,Biomedical Research Center Qatar University, P.O Box 2713, Doha, Qatar.
| | - Roberta Giordo
- Department of Medical Laboratory Sciences, College of Health Sciences, and Sharjah Institute for Medical Research, University of Sharjah, University City Rd, Sharjah, 27272, United Arab Emirates
| | - Ali Hussein Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, PO Box 2713, Doha, Qatar.,Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, PO Box 2713, Doha, Qatar.,Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, PO Box 11-0236, Beirut, Lebanon
| | - Alessandro Giuseppe Fois
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100, Sassari, Italy
| | - Angelo Zinellu
- Department of Biomedical Sciences, University of Sassari, 07100, Sassari, Italy
| | - Arduino Aleksander Mangoni
- Department of Clinical Pharmacology, College of Medicine and Public Health, Flinders University, Adelaide, Australia.
| | - Gianfranco Pintus
- Department of Medical Laboratory Sciences, College of Health Sciences, and Sharjah Institute for Medical Research, University of Sharjah, University City Rd, Sharjah, 27272, United Arab Emirates. .,Department of Biomedical Sciences, University of Sassari, 07100, Sassari, Italy.
| |
Collapse
|
12
|
Wang J, Xue T, Ye H, Sang C, Wu S, Li S. Study of the common activating mechanism of apoptosis and epithelial-to-mesenchymal transition in alveolar type II epithelial cells. Respir Physiol Neurobiol 2020; 284:103584. [PMID: 33197603 DOI: 10.1016/j.resp.2020.103584] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/09/2020] [Accepted: 11/11/2020] [Indexed: 12/17/2022]
Abstract
Infection and severe trauma can result in acute lung injury/acute respiratory distress syndrome (ALI/ARDS) and eventually pulmonary fibrosis. Epithelial-to-mesenchymal transition (EMT) is related to pulmonary fibrosis. Our study found that pyocyanin (PCN) could promote apoptosis and EMT in alveolar type II epithelial A549 cells. We hypothesized that there might be a common mechanism related to both apoptosis and EMT in A549 cells. The aim of this study was to determine whether reactive oxygen species (ROS) induced by PCN is the common stimulus upstream of apoptosis and EMT as well as the relevant signalling pathways. A549 cells were challenged with PCN; ROS was then detected by immunofluorescence, and apoptosis was measured by flow cytometry. Caspases, EMT markers and the TGF-β/Smad pathway were assessed by Western blot, qPCR or ELISA. The results showed that PCN promoted ROS production, and the apoptosis rate was clearly increased. E-cadherin downregulation, vimentin and α-SMA upregulation in A549 cells, cleaved caspase-9 and caspase-3, TGF-β1 and activated Smad2/3 were also detected. Interestingly, the protein expression of cleaved caspase-3 and vimentin was highly positively correlated. Inhibition of ROS could partially reverse PCN-induced EMT and apoptosis in A549 cells, and EMT could also be reversed by TGF-β1 inhibitors. In conclusion, ROS may be a common activating mechanism of apoptosis and EMT in alveolar epithelial cells, during which the degree of apoptosis is positively related to EMT. ROS may induce alveolar epithelial cell apoptosis through the mitochondrial pathway or endoplasmic reticulum pathway. ROS activates TGF-β1, followed by SMADs, eventually inducing EMT.
Collapse
Affiliation(s)
- Jiali Wang
- Department of Respiratory and Critical Care Medicine, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing, 101149, China
| | - Tianjiao Xue
- Department of Infectious Disease, Fuxing Hospital, Capital Medical University, Beijing, 10038, China
| | - Huan Ye
- Department of Respiratory and Critical Care Medicine, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing, 101149, China.
| | - Chen Sang
- Department of Biological Engineering, Beihang University, Beijing, 100191, China
| | - Shuai Wu
- Department of Infectious Disease, Fuxing Hospital, Capital Medical University, Beijing, 10038, China
| | - Shanshan Li
- Department of Respiratory and Critical Care Medicine, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing, 101149, China
| |
Collapse
|
13
|
Weng Y, Lieberthal TJ, Zhou VX, Lopez-Ichikawa M, Armas-Phan M, Bond TK, Yoshida MC, Choi WT, Chang TT. Liver epithelial focal adhesion kinase modulates fibrogenesis and hedgehog signaling. JCI Insight 2020; 5:141217. [PMID: 32910808 PMCID: PMC7605528 DOI: 10.1172/jci.insight.141217] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/03/2020] [Indexed: 12/16/2022] Open
Abstract
Focal adhesion kinase (FAK) is an important mediator of extracellular matrix-integrin mechano-signal transduction that regulates cell motility, survival, and proliferation. As such, FAK is being investigated as a potential therapeutic target for malignant and fibrotic diseases, and numerous clinical trials of FAK inhibitors are underway. The function of FAK in nonmalignant, nonmotile epithelial cells is not well understood. We previously showed that hepatocytes demonstrated activated FAK near stiff collagen tracts in fibrotic livers. In this study, we examined the role of liver epithelial FAK by inducing fibrotic liver disease in mice with liver epithelial FAK deficiency. We found that mice that lacked FAK in liver epithelial cells developed more severe liver injury and worse fibrosis as compared with controls. Increased fibrosis in liver epithelial FAK-deficient mice was linked to the activation of several profibrotic pathways, including the hedgehog/smoothened pathway. FAK-deficient hepatocytes produced increased Indian hedgehog in a manner dependent on matrix stiffness. Furthermore, expression of the hedgehog receptor, smoothened, was increased in macrophages and biliary cells of hepatocyte-specific FAK-deficient fibrotic livers. These results indicate that liver epithelial FAK has important regulatory roles in the response to liver injury and progression of fibrosis.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | - Tammy T Chang
- Department of Surgery.,Liver Center, University of California, San Francisco, California, USA
| |
Collapse
|
14
|
Yang J, Agarwal M, Ling S, Teitz-Tennenbaum S, Zemans RL, Osterholzer JJ, Sisson TH, Kim KK. Diverse Injury Pathways Induce Alveolar Epithelial Cell CCL2/12, Which Promotes Lung Fibrosis. Am J Respir Cell Mol Biol 2020; 62:622-632. [PMID: 31922885 DOI: 10.1165/rcmb.2019-0297oc] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Accumulating evidence suggests that fibrosis is a multicellular process with contributions from alveolar epithelial cells (AECs), recruited monocytes/macrophages, and fibroblasts. We have previously shown that AEC injury is sufficient to induce fibrosis, but the precise mechanism remains unclear. Several cell types, including AECs, can produce CCL2 and CCL12, which can promote fibrosis through CCR2 activation. CCR2 signaling is critical for the initiation and progression of pulmonary fibrosis, in part through recruitment of profibrotic bone marrow-derived monocytes. Attempts at inhibiting CCL2 in patients with fibrosis demonstrated a marked upregulation of CCL2 production and no therapeutic response. To better understand the mechanisms involved in CCL2/CCR2 signaling, we generated mice with conditional deletion of CCL12, a murine homolog of human CCL2. Surprisingly, we found that mice with complete deletion of CCL12 had markedly increased concentrations of other CCR2 ligands and were not protected from fibrosis after bleomycin injury. In contrast, mice with lung epithelial cell-specific deletion of CCL12 were protected from bleomycin-induced fibrosis and had expression of CCL2 and CCL7 similar to that of control mice treated with bleomycin. Deletion of CCL12 within AECs led to decreased recruitment of exudate macrophages. Finally, injury to murine and human primary AECs resulted in increased production of CCL2 and CCL12, in part through activation of the mTOR pathway. In conclusion, these data suggest that targeting CCL2 may be a viable antifibrotic strategy once the pathways involved in the production and function of CCL2 and other CCR2 ligands are better defined.
Collapse
Affiliation(s)
| | - Manisha Agarwal
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan; and
| | - Song Ling
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan; and
| | - Seagal Teitz-Tennenbaum
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan; and.,Pulmonary Section, Department of Medicine, VA Ann Arbor Health System, Ann Arbor, Michigan
| | - Rachel L Zemans
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan; and
| | - John J Osterholzer
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan; and.,Pulmonary Section, Department of Medicine, VA Ann Arbor Health System, Ann Arbor, Michigan
| | - Thomas H Sisson
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan; and
| | - Kevin K Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan; and
| |
Collapse
|
15
|
Ren R, Ruan Z, Ding H, Du J, Yu W. Phosphoproteome profiling provides insight into the mechanisms of ventilator-induced lung injury. Exp Ther Med 2020; 19:3627-3633. [PMID: 32346427 PMCID: PMC7185165 DOI: 10.3892/etm.2020.8634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 11/05/2019] [Indexed: 12/19/2022] Open
Abstract
The incidence of acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) is a common health problem in the clinic and is projected to increase in prevalence in the future. Mechanical ventilation is commonly used to provide respiratory support and has become indispensable in emergency and critical medicine. However, ventilator use can result in lung tissue damage, collectively termed ventilator-induced lung injury (VILI). In the present study, phosphoprotein profiling of blood and tissue samples from ventilated and non-ventilated mice was performed and key changes in protein levels and cell signaling during VILI were identified. Activation of the PI3K/AKT and mitogen activated protein kinase signaling pathways, in addition to changes in expression of cancer, inflammatory and cell-death related proteins were detected in response to mechanical ventilation. Focal adhesion-related protein levels and signaling pathways were also significantly altered in an injury model compared with control. VILI can affect patient mortality in ALI and ARDS cases, and no targeted treatment options currently exist. Identifying biomarkers and understanding the signaling pathways associated with VILI is critical for the development of future therapies.
Collapse
Affiliation(s)
- Rongrong Ren
- Department of Anesthesiology, The Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai 200438, P.R. China.,Department of Anesthesiology and Surgical Intensive Care Unit, Xin Hua Hospital School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Zhengshang Ruan
- Department of Anesthesiology and Surgical Intensive Care Unit, Xin Hua Hospital School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Haoshu Ding
- Department of Anesthesiology and Surgical Intensive Care Unit, Xin Hua Hospital School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Junming Du
- Department of Anesthesiology and Surgical Intensive Care Unit, Xin Hua Hospital School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, P.R. China
| | - Weifeng Yu
- Department of Anesthesiology, The Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai 200438, P.R. China
| |
Collapse
|
16
|
Enhancement of FAK alleviates ventilator-induced alveolar epithelial cell injury. Sci Rep 2020; 10:419. [PMID: 31942012 PMCID: PMC6962166 DOI: 10.1038/s41598-019-57350-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 12/16/2019] [Indexed: 01/19/2023] Open
Abstract
Mechanical ventilation induces lung injury by damaging alveolar epithelial cells (AECs), but the pathogenesis remains unknown. Focal adhesion kinase (FAK) is a cytoplasmic protein tyrosine kinase that is involved in cell growth and intracellular signal transduction pathways. This study explored the potential role of FAK in AECs during lung injury induced by mechanical ventilation. High-volume mechanical ventilation (HMV) was used to create a mouse lung injury model, which was validated by analysis of lung weight, bronchoalveolar lavage fluid and histological investigation. The expression of FAK and Akt in AECs were evaluated. In addition, recombinant FAK was administered to mice via the tail vein, and then the extent of lung injury was assessed. Mouse AECs were cultured in vitro, and FAK expression in cells under stretch was investigated. The effects of FAK on cell proliferation, migration and apoptosis were investigated. The results showed that HMV decreased FAK expression in AECs of mice, while FAK supplementation attenuated lung injury, reduced protein levels/cell counts in the bronchoalveolar lavage fluid and decreased histological lung injury and oedema. The protective effect of FAK promoted AEC proliferation and migration and prevented cells from undergoing apoptosis, which restored the integrity of the alveoli through Akt pathway. Therefore, the decrease in FAK expression by HMV is essential for injury to epithelial cells and the disruption of alveolar integrity. FAK supplementation can reduce AEC injury associated with HMV.
Collapse
|
17
|
Zhang P, Liu J, Zong R. Triptolide protects against TGF-β1-induced pulmonary fibrosis by regulating FAK/calpain signaling. Exp Ther Med 2019; 18:4781-4789. [PMID: 31777561 PMCID: PMC6862707 DOI: 10.3892/etm.2019.8127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 09/04/2019] [Indexed: 11/17/2022] Open
Abstract
The present study aimed to investigate the mechanism of anti-proliferative, anti-inflammatory and anti-fibrotic effects of triptolide (TPL) on activated lung fibroblasts by regulating the focal adhesion kinase (FAK) and calpain signaling pathways. The HFL-1 human foetal lung fibroblast cell line was cultured in vitro and treated with 50 ng/ml transforming growth factor (TGF)-β1 for 48 h to establish the model of pulmonary fibrosis. Subsequently, the cells were divided into five groups, including a control, model, TPL, FAK inhibitor and calpeptin group. Subsequently, the proliferation of lung fibroblasts was detected using the Cell Counting Kit-8 assay. The concentration of interleukin (IL)-6 in the cell culture supernatant was examined by ELISA and the mRNA expression levels of collagen type I (ColI)α and ColIII in lung fibroblasts were quantified by reverse transcription-quantitative PCR. The protein levels of FAK, phosphorylated (p)-FAK, calpain 1 and calpain 2 were detected by western blot analysis. TGF-β1 induced the proliferation of lung fibroblasts, whereas TPL inhibited this proliferation in a dose-dependent manner. TPL also decreased the TGF-β1-induced production of IL-6 and reduced the upregulation of ColIα, ColIII, FAK, p-FAK, and inhibited the decrease of calpain 1 and calpain 2 induced by TGF-β1. In addition, the FAK inhibitor acted synergistically with TPL to decrease TGF-β1-induced production of IL-6 and attenuate TGF-β1-induced synthesis of ColIα and ColIII, while calpeptin had an antagonistic effect on the function of TPL. Furthermore, treatment with the FAK inhibitor and TPL markedly decreased the protein levels of FAK and p-FAK, and increased the protein expression of calpain 1 and calpain 2 in lung fibroblasts stimulated by TGF-β1 to a greater extent than TPL alone, while calpeptin had an antagonistic effect on the action of TPL. In conclusion, the present study indicated that TPL protected against TGF-β1-induced proliferation, inflammation and fibrosis by regulating the FAK and calpain signaling pathways.
Collapse
Affiliation(s)
- Pingheng Zhang
- Traditional Chinese Medicine Department, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
| | - Jian Liu
- Rheumatism Department, Anhui University of Chinese Medicine, Hefei, Anhui 230031, P.R. China
| | - Ruikai Zong
- Rheumatism Department, Anhui University of Chinese Medicine, Hefei, Anhui 230031, P.R. China
| |
Collapse
|
18
|
Jia S, Agarwal M, Yang J, Horowitz JC, White ES, Kim KK. Discoidin Domain Receptor 2 Signaling Regulates Fibroblast Apoptosis through PDK1/Akt. Am J Respir Cell Mol Biol 2019; 59:295-305. [PMID: 29652518 DOI: 10.1165/rcmb.2017-0419oc] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Progressive fibrosis is a complication of many chronic diseases, and collectively, organ fibrosis is the leading cause of death in the United States. Fibrosis is characterized by accumulation of activated fibroblasts and excessive deposition of extracellular matrix proteins, especially type I collagen. Extensive research has supported a role for matrix signaling in propagating fibrosis, but type I collagen itself is often considered an end product of fibrosis rather than an important regulator of continued collagen deposition. Type I collagen can activate several cell surface receptors, including α2β1 integrin and discoidin domain receptor 2 (DDR2). We have previously shown that mice deficient in type I collagen have reduced activation of DDR2 and reduced accumulation of activated myofibroblasts. In the present study, we found that DDR2-null mice are protected from fibrosis. Surprisingly, DDR2-null fibroblasts have a normal and possibly exaggerated activation response to transforming growth factor-β and do not have diminished proliferation compared with wild-type fibroblasts. DDR2-null fibroblasts are significantly more prone to apoptosis, in vitro and in vivo, than wild-type fibroblasts, supporting a paradigm in which fibroblast resistance to apoptosis is critical for progression of fibrosis. We have identified a novel molecular mechanism by which DDR2 can promote the activation of a PDK1 (3-phosphoinositide dependent protein kinase-1)/Akt survival pathway, and we have found that inhibition of PDK1 can augment fibroblast apoptosis. Furthermore, our studies demonstrate that DDR2 expression is heavily skewed to mesenchymal cells compared with epithelial cells and that idiopathic pulmonary fibrosis cells and tissue demonstrate increased activation of DDR2 and PDK1. Collectively, these findings identify a promising target for fibrosis therapy.
Collapse
Affiliation(s)
- Shijing Jia
- 1 Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, and
| | - Manisha Agarwal
- 1 Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, and
| | - Jibing Yang
- 2 Unit for Laboratory Animal Medicine, University of Michigan Medical School, Ann Arbor, Michigan
| | - Jeffrey C Horowitz
- 1 Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, and
| | - Eric S White
- 1 Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, and
| | - Kevin K Kim
- 1 Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, and
| |
Collapse
|
19
|
Abstract
Fibrosis is a dynamic process with the potential for reversibility and restoration of near-normal tissue architecture and organ function. Herein, we review mechanisms for resolution of organ fibrosis, in particular that involving the lung, with an emphasis on the critical roles of myofibroblast apoptosis and clearance of deposited matrix.
Collapse
Affiliation(s)
- Jeffrey C Horowitz
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan Medical School , Ann Arbor, Michigan
| | - Victor J Thannickal
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham , Birmingham, Alabama
| |
Collapse
|
20
|
Geng Y, Liu X, Liang J, Habiel DM, Kulur V, Coelho AL, Deng N, Xie T, Wang Y, Liu N, Huang G, Kurkciyan A, Liu Z, Tang J, Hogaboam CM, Jiang D, Noble PW. PD-L1 on invasive fibroblasts drives fibrosis in a humanized model of idiopathic pulmonary fibrosis. JCI Insight 2019; 4:125326. [PMID: 30763282 DOI: 10.1172/jci.insight.125326] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 02/13/2019] [Indexed: 12/11/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive disease with unremitting extracellular matrix deposition, leading to a distortion of pulmonary architecture and impaired gas exchange. Fibroblasts from IPF patients acquire an invasive phenotype that is essential for progressive fibrosis. Here, we performed RNA sequencing analysis on invasive and noninvasive fibroblasts and found that the immune checkpoint ligand CD274 (also known as PD-L1) was upregulated on invasive lung fibroblasts and was required for the invasive phenotype of lung fibroblasts, is regulated by p53 and FAK, and drives lung fibrosis in a humanized IPF model in mice. Activating CD274 in IPF fibroblasts promoted invasion in vitro and pulmonary fibrosis in vivo. CD274 knockout in IPF fibroblasts and targeting CD274 by FAK inhibition or CD274-neutralizing antibodies blunted invasion and attenuated fibrosis, suggesting that CD274 may be a novel therapeutic target in IPF.
Collapse
Affiliation(s)
- Yan Geng
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.,School of Pharmaceutical Science, Jiangnan University, Wuxi, Jiangsu, China
| | - Xue Liu
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Jiurong Liang
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - David M Habiel
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Vrishika Kulur
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Ana Lucia Coelho
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Nan Deng
- Biostatistics & Bioinformatics Core
| | - Ting Xie
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | | | - Ningshan Liu
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Guanling Huang
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Adrianne Kurkciyan
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | | | | | - Cory M Hogaboam
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Dianhua Jiang
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Paul W Noble
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| |
Collapse
|
21
|
Fang M, Fan S, Yao X, Liu N, Gao J, Wang Z, Xu T, Xian X, Li W. Transfection of Sox11 plasmid alleviates ventilator-induced lung injury via Sox11 and FAK. Biochem Biophys Res Commun 2019; 512:182-188. [PMID: 30879763 DOI: 10.1016/j.bbrc.2019.03.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 03/08/2019] [Indexed: 12/15/2022]
Abstract
Background Ventilator-induced lung injury (VILI) is the most common complication in the mechanical ventilation in clinic. The pathogenesis of VILI has not been well understood. The SRY related High Mobility Group box group-F family member 11(Sox11) is a protein associated with lung development. The focal adhesion kinase(FAK) is a cytoplasmic tyrosine kinase and is regulated by Sox11. The present study, therefore, was undertaken to explore the potential role of Sox11 and FAK in VILI. Methods High volume mechanical ventilation(HMV) was used to establish mouse VILI model under anesthesia. The lung injury was evaluated by analyzing the lung weight, bronchoalveolar lavage fluid, histopathological changes and apoptosis of the lung. The Sox11 and FAK expressions in the lung were investigated by real-time qPCR, western blot and immunohistochemistry analysis. Results HMV induced VILI simultaneously companied with decreased expressions of Sox11 and FAK in alveolar epithelial and interstitial cells either in gene and protein levels. Transfection of Sox11 plasmid significantly upregulated expressions of Sox11 and FAK in gene and protein levels in the lung and particularly effectively alleviated VILI. Furthermore, FAK antagonism by PF562271(FAK antagonist) blocked the alleviating effect of Sox11 plasmid transfection on the VILI. Conclusion The dysregulation in the Sox11 and FAK after HMV play an important role in the pathogenesis of VILI, and facilitating the activity of Sox11and FAK might be an effective target and potential option in the prevention and treatment of VILI in clinic.
Collapse
Affiliation(s)
- Mingxing Fang
- Department of Pathophysiology, Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China; Department of Intensive Care Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Shujuan Fan
- Department of Pathophysiology, Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
| | - Xiaoguang Yao
- Department of Pathophysiology, Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China; College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Na Liu
- Department of Emergency, The Forth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Junxia Gao
- Department of Pathophysiology, Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
| | - Zhiyong Wang
- Department of Intensive Care Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China.
| | - Tieling Xu
- Department of Emergency, Hebei General Hospital, Shijiazhuang, China
| | - Xiaohui Xian
- Department of Pathophysiology, Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China
| | - Wenbin Li
- Department of Pathophysiology, Neuroscience Research Center, Hebei Medical University, Shijiazhuang, China.
| |
Collapse
|
22
|
miR-542-5p Attenuates Fibroblast Activation by Targeting Integrin α6 in Silica-Induced Pulmonary Fibrosis. Int J Mol Sci 2018; 19:ijms19123717. [PMID: 30467286 PMCID: PMC6320929 DOI: 10.3390/ijms19123717] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/12/2018] [Accepted: 11/17/2018] [Indexed: 11/28/2022] Open
Abstract
Silicosis is a very serious occupational disease and it features pathological manifestations of inflammatory infiltration, excessive proliferation of fibroblasts and massive depositions of the extracellular matrix in the lungs. Recent studies described the roles of a variety of microRNAs (miRNAs) in fibrotic diseases. Here, we aimed to explore the potential mechanism of miR-542-5p in the activation of lung fibroblasts. To induce a pulmonary fibrosis mouse model, silica suspension and the miR-542-5p agomir were administered to mice by intratracheal instillation and tail vein injection. We found that miR-542-5p was significantly decreased in mouse fibrotic lung tissues and up-regulation of miR-542-5p visually attenuated a series of fibrotic lesions, including alveolar structural damage, alveolar interstitial thickening and silica-induced nodule formation. The down-regulation of miR-542-5p was also observed in mouse fibroblast (NIH-3T3) treated with transforming growth factor β1 (TGF-β1). The proliferation and migration ability of NIH-3T3 cells were also inhibited by the transfection of miR-542-5p mimic. Integrin α6 (Itga6), reported as a cell surface protein associated with fibroblast proliferation, was confirmed to be a direct target of miR-542-5p. The knockdown of Itga6 significantly inhibited the phosphorylation of FAK/PI3K/AKT. In conclusion, miR-542-5p has a potential function for reducing the proliferation of fibroblasts and inhibiting silica-induced pulmonary fibrosis, which might be partially realized by directly binding to Itga6. Our data suggested that miR-542-5p might be a new therapeutic target for silicosis or other pulmonary fibrosis.
Collapse
|
23
|
Kim KK, Dotson MR, Agarwal M, Yang J, Bradley PB, Subbotina N, Osterholzer JJ, Sisson TH. Efferocytosis of apoptotic alveolar epithelial cells is sufficient to initiate lung fibrosis. Cell Death Dis 2018; 9:1056. [PMID: 30333529 PMCID: PMC6193049 DOI: 10.1038/s41419-018-1074-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 09/14/2018] [Accepted: 09/21/2018] [Indexed: 12/30/2022]
Abstract
Type II alveolar epithelial cell (AEC) apoptosis is a prominent feature of fibrotic lung diseases and animal models of pulmonary fibrosis. While there is growing recognition of the importance of AEC injury and apoptosis as a causal factor in fibrosis, the underlying mechanisms that link these processes remain unknown. We have previously shown that targeting the type II alveolar epithelium for injury by repetitively administering diphtheria toxin to transgenic mice expressing the diphtheria toxin receptor off of the surfactant protein C promoter (SPC-DTR) develop lung fibrosis, confirming that AEC injury is sufficient to cause fibrosis. In the present study, we find that SPC-DTR mice develop increased activation of caspase 3/7 after initiation of diphtheria toxin treatment consistent with apoptosis within AECs. We also find evidence of efferocytosis, the uptake of apoptotic cells, by alveolar macrophages in this model. To determine the importance of efferocytosis in lung fibrosis, we treated cultured alveolar macrophages with apoptotic type II AECs and found that the uptake induced pro-fibrotic gene expression. We also found that the repetitive intrapulmonary administration of apoptotic type II AEC or MLE-12 cells induces lung fibrosis. Finally, mice lacking a key efferocytosis receptor, CD36, developed attenuated fibrosis in response to apoptotic MLE-12 cells. Collectively, these studies support a novel mechanism linking AEC apoptosis with macrophage pro-fibrotic activation via efferocytosis and reveal previously unrecognized therapeutic targets.
Collapse
Affiliation(s)
- Kevin K Kim
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Megan R Dotson
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Manisha Agarwal
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Jibing Yang
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Patrick B Bradley
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Natalia Subbotina
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - John J Osterholzer
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Thomas H Sisson
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| |
Collapse
|
24
|
Happle C, Meyer-Decking L, Dreier A, Wetzke M, Gläsener S, Grychtol R, Braubach P, Jablonka A, Haid S, Jirmo AC, Habener A, Skuljec J, Hansen G. Improved protocol for simultaneous analysis of leukocyte subsets and epithelial cells from murine and human lung. Exp Lung Res 2018; 44:127-136. [PMID: 29677457 DOI: 10.1080/01902148.2018.1432721] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
PURPOSE To study and isolate lung cells by flow cytometry, enzymatic digestion and generation of single cell suspensions is required. This significantly influences expression of cellular epitopes and protocols need to be adapted for the best isolation and subsequent analysis of specific cellular subsets. MATERIALS AND METHODS We optimized protocols for the simultaneous isolation and characterization of specific human and murine lung cell types. For alveolar epithelial cells (AEC), a primarily dispase based digestion method and for leukocytes, a primarily collagenase based technique was adapted. Protocols were applied in parallel in either single experimental mice or human lung specimens. RESULTS Optimized dispase/DNase digestion yielded a high percentage of Epcam+CD45-CD31- AEC as assessed by flow cytometry. Epcam+CD45-CD3-CD11b-CD11c-CD16/32-CD19-CD31-F4/80- AEC were readily sortable with high purity and typical morphology and function upon in vitro stimulation with lipopolysaccharide or respiratory-syncytial-virus (RSV) infection. To analyze lung leukocytes, specimens were digested with an adapted collagenase/DNase protocol yielding high percentages of viable leukocytes with typical morphology, function, and preserved subset specific leukocyte markers. Both protocols could be applied simultaneously in a single experimental mouse post mortem. Application of both digestion methods in primary human lung specimens yielded similar results with high proportions of Epcam+CD45- human AEC after dispase/DNase digestion and preservation of human T cell epitopes after collagenase/DNase digestion. CONCLUSION The here described protocols were optimized for the simple and efficient isolation of murine and human lung cells. In contrast to previously described techniques, they permit simultaneous in-depth characterization of pulmonary epithelial cells and leukocyte subsets such as T helper, cytotoxic T, and B cells from one sample. As such, they may help to comprehensively and sustainably characterize murine and human lung specimens and facilitate studies on the role of lung immune cells in different respiratory pathologies.
Collapse
Affiliation(s)
- Christine Happle
- a Department of Pediatrics, Allergology, and Neonatology , Hannover Medical School , Hannover , Germany.,b German Center for Lung Research , Biomedical Research in End Stage and Obstructive Lung Disease/ BREATH Hannover , Germany
| | - Lena Meyer-Decking
- a Department of Pediatrics, Allergology, and Neonatology , Hannover Medical School , Hannover , Germany
| | - Anika Dreier
- a Department of Pediatrics, Allergology, and Neonatology , Hannover Medical School , Hannover , Germany.,b German Center for Lung Research , Biomedical Research in End Stage and Obstructive Lung Disease/ BREATH Hannover , Germany
| | - Martin Wetzke
- a Department of Pediatrics, Allergology, and Neonatology , Hannover Medical School , Hannover , Germany
| | - Stephanie Gläsener
- b German Center for Lung Research , Biomedical Research in End Stage and Obstructive Lung Disease/ BREATH Hannover , Germany
| | - Ruth Grychtol
- a Department of Pediatrics, Allergology, and Neonatology , Hannover Medical School , Hannover , Germany.,b German Center for Lung Research , Biomedical Research in End Stage and Obstructive Lung Disease/ BREATH Hannover , Germany
| | - Peter Braubach
- b German Center for Lung Research , Biomedical Research in End Stage and Obstructive Lung Disease/ BREATH Hannover , Germany.,c Department of Pathology , Hannover Medical School , Hannover , Germany
| | - Alexandra Jablonka
- d Department of Clinical Immunology and Rheumatology , Hannover Medical School , Hannover , Germany.,e German Center for Infection Research (DZIF) , Standort Hannover-Braunschweig , Germany
| | - Sibylle Haid
- f Experimental Virology and TWINCORE , a joint venture between the Hannover Medical School and the Helmholtz Centre for Infection Research , Hannover , Germany
| | - Adan Chari Jirmo
- a Department of Pediatrics, Allergology, and Neonatology , Hannover Medical School , Hannover , Germany.,b German Center for Lung Research , Biomedical Research in End Stage and Obstructive Lung Disease/ BREATH Hannover , Germany
| | - Anika Habener
- a Department of Pediatrics, Allergology, and Neonatology , Hannover Medical School , Hannover , Germany.,b German Center for Lung Research , Biomedical Research in End Stage and Obstructive Lung Disease/ BREATH Hannover , Germany
| | - Jelena Skuljec
- a Department of Pediatrics, Allergology, and Neonatology , Hannover Medical School , Hannover , Germany
| | - Gesine Hansen
- a Department of Pediatrics, Allergology, and Neonatology , Hannover Medical School , Hannover , Germany.,b German Center for Lung Research , Biomedical Research in End Stage and Obstructive Lung Disease/ BREATH Hannover , Germany
| |
Collapse
|
25
|
Wang T, Li Y, Zhu M, Yao W, Wu H, Ji X, Hu Z, Shen H, Fan X, Ni C. Association Analysis Identifies New Risk Loci for Coal Workers’ Pneumoconiosis in Han Chinese Men. Toxicol Sci 2018; 163:206-213. [DOI: 10.1093/toxsci/kfy017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Ting Wang
- Department of Pathology, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu Province 210008, China
| | - Yan Li
- Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Meng Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Wenxi Yao
- Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Hongyan Wu
- Department of Pathology, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu Province 210008, China
| | - Xiaoming Ji
- Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zhibin Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Hongbing Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xiangshan Fan
- Department of Pathology, The Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu Province 210008, China
| | - Chunhui Ni
- Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| |
Collapse
|
26
|
Cipolla E, Fisher AJ, Gu H, Mickler EA, Agarwal M, Wilke CA, Kim KK, Moore BB, Vittal R. IL-17A deficiency mitigates bleomycin-induced complement activation during lung fibrosis. FASEB J 2017; 31:5543-5556. [PMID: 28821630 DOI: 10.1096/fj.201700289r] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 08/07/2017] [Indexed: 01/07/2023]
Abstract
Interleukin 17A (IL-17A) and complement (C') activation have each been implicated in the pathogenesis of idiopathic pulmonary fibrosis (IPF). We have reported that IL-17A induces epithelial injury via TGF-β in murine bronchiolitis obliterans; that TGF-β and the C' cascade present signaling interactions in mediating epithelial injury; and that the blockade of C' receptors mitigates lung fibrosis. In the present study, we investigated the role of IL-17A in regulating C' in lung fibrosis. Microarray analyses of mRNA isolated from primary normal human small airway epithelial cells indicated that IL-17A (100 ng/ml; 24 h; n = 5 donor lungs) induces C' components (C' factor B, C3, and GPCR kinase isoform 5), cytokines (IL8, -6, and -1B), and cytokine ligands (CXCL1, -2, -3, -5, -6, and -16). IL-17A induces protein and mRNA regulation of C' components and the synthesis of active C' 3a (C3a) in normal primary human alveolar type II epithelial cells (AECs). Wild-type mice subjected to IL-17A neutralization and IL-17A knockout (il17a-/- ) mice were protected against bleomycin (BLEO)-induced fibrosis and collagen deposition. Further, BLEO-injured il17a-/- mice had diminished levels of circulating Krebs Von Den Lungen 6 (alveolar epithelial injury marker), local caspase-3/7, and local endoplasmic reticular stress-related genes. BLEO-induced local C' activation [C3a, C5a, and terminal C' complex (C5b-9)] was attenuated in il17a-/- mice, and IL-17A neutralization prevented the loss of epithelial C' inhibitors (C' receptor-1 related isoform Y and decay accelerating factor), and an increase in local TUNEL levels. RNAi-mediated gene silencing of il17a in fibrotic mice arrested the progression of lung fibrosis, attenuated cellular apoptosis (caspase-3/7) and lung deposition of collagen and C' (C5b-9). Compared to normals, plasma from IPF patients showed significantly higher hemolytic activity. Our findings demonstrate that limiting complement activation by neutralizing IL-17A is a potential mechanism in ameliorating lung fibrosis.-Cipolla, E., Fisher, A. J., Gu, H., Mickler, E. A., Agarwal, M., Wilke, C. A., Kim, K. K., Moore, B. B., Vittal, R. IL-17A deficiency mitigates bleomycin-induced complement activation during lung fibrosis.
Collapse
Affiliation(s)
- Ellyse Cipolla
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Amanda J Fisher
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA; and
| | - Hongmei Gu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA; and
| | - Elizabeth A Mickler
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA; and
| | - Manisha Agarwal
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Carol A Wilke
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Kevin K Kim
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Bethany B Moore
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan, USA.,Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Ragini Vittal
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor, Michigan, USA;
| |
Collapse
|