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Shi X, Chen Y, Shi M, Gao F, Huang L, Wang W, Wei D, Shi C, Yu Y, Xia X, Song N, Chen X, Distler JHW, Lu C, Chen J, Wang J. The novel molecular mechanism of pulmonary fibrosis: insight into lipid metabolism from reanalysis of single-cell RNA-seq databases. Lipids Health Dis 2024; 23:98. [PMID: 38570797 PMCID: PMC10988923 DOI: 10.1186/s12944-024-02062-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 02/27/2024] [Indexed: 04/05/2024] Open
Abstract
Pulmonary fibrosis (PF) is a severe pulmonary disease with limited available therapeutic choices. Recent evidence increasingly points to abnormal lipid metabolism as a critical factor in PF pathogenesis. Our latest research identifies the dysregulation of low-density lipoprotein (LDL) is a new risk factor for PF, contributing to alveolar epithelial and endothelial cell damage, and fibroblast activation. In this study, we first integrative summarize the published literature about lipid metabolite changes found in PF, including phospholipids, glycolipids, steroids, fatty acids, triglycerides, and lipoproteins. We then reanalyze two single-cell RNA-sequencing (scRNA-seq) datasets of PF, and the corresponding lipid metabolomic genes responsible for these lipids' biosynthesis, catabolism, transport, and modification processes are uncovered. Intriguingly, we found that macrophage is the most active cell type in lipid metabolism, with almost all lipid metabolic genes being altered in macrophages of PF. In type 2 alveolar epithelial cells, lipid metabolic differentially expressed genes (DEGs) are primarily associated with the cytidine diphosphate diacylglycerol pathway, cholesterol metabolism, and triglyceride synthesis. Endothelial cells are partly responsible for sphingomyelin, phosphatidylcholine, and phosphatidylethanolamines reprogramming as their metabolic genes are dysregulated in PF. Fibroblasts may contribute to abnormal cholesterol, phosphatidylcholine, and phosphatidylethanolamine metabolism in PF. Therefore, the reprogrammed lipid profiles in PF may be attributed to the aberrant expression of lipid metabolic genes in different cell types. Taken together, these insights underscore the potential of targeting lipid metabolism in developing innovative therapeutic strategies, potentially leading to extended overall survival in individuals affected by PF.
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Affiliation(s)
- Xiangguang Shi
- Department of Dermatology, Huashan Hospital, and State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China
| | - Yahui Chen
- Human Phenome Institute, and Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, China Fudan University, Shanghai, China
| | - Mengkun Shi
- Department of Thoracic Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Fei Gao
- Wuxi Lung Transplant Center, Wuxi People's Hospital affiliated to Nanjing Medical University, Wuxi, China
| | - Lihao Huang
- Shanghai Key Laboratory of Metabolic Remodeling and Health, Institute of Metabolism & Integrative Biology, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 200438, China
| | - Wei Wang
- Wuxi Lung Transplant Center, Wuxi People's Hospital affiliated to Nanjing Medical University, Wuxi, China
- MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
| | - Dong Wei
- Wuxi Lung Transplant Center, Wuxi People's Hospital affiliated to Nanjing Medical University, Wuxi, China
| | - Chenyi Shi
- MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China
| | - Yuexin Yu
- Human Phenome Institute, and Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, China Fudan University, Shanghai, China
| | - Xueyi Xia
- Human Phenome Institute, and Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, China Fudan University, Shanghai, China
| | - Nana Song
- Department of Nephrology, Zhongshan Hospital, Fudan University, Fudan Zhangjiang Institute, Shanghai, People's Republic of China
| | - Xiaofeng Chen
- Department of Thoracic Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Jörg H W Distler
- Department of Internal Medicine 3 and Institute for Clinical Immunology, University of Erlangen, Nuremberg, Germany
| | - Chenqi Lu
- MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China.
| | - Jingyu Chen
- Wuxi Lung Transplant Center, Wuxi People's Hospital affiliated to Nanjing Medical University, Wuxi, China.
- Center for Lung Transplantation, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Jiucun Wang
- Department of Dermatology, Huashan Hospital, and State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, China.
- Human Phenome Institute, and Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, China Fudan University, Shanghai, China.
- Research Unit of Dissecting the Population Genetics and Developing New Technologies for Treatment and Prevention of Skin Phenotypes and Dermatological Diseases (2019RU058), Chinese Academy of Medical Sciences, Beijing, China.
- Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China.
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Ito T, Ichikawa T, Yamada M, Hashimoto Y, Fujino N, Numakura T, Sasaki Y, Suzuki A, Takita K, Sano H, Kyogoku Y, Saito T, Koarai A, Tamada T, Sugiura H. CYP27A1-27-hydroxycholesterol axis in the respiratory system contributes to house dust mite-induced allergic airway inflammation. Allergol Int 2024; 73:151-163. [PMID: 37607853 DOI: 10.1016/j.alit.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 07/27/2023] [Accepted: 07/31/2023] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND 27-Hydroxycholesterol (27-HC) derived from sterol 27-hydroxylase (CYP27A1) has pro-inflammatory biological activity and is associated with oxidative stress and chronic inflammation in COPD. However, the role of regulation of CYP27A1- 27-HC axis in asthma is unclear. This study aimed to elucidate the contribution of the axis to the pathophysiology of asthma. METHODS House dust mite (HDM) extract was intranasally administered to C57BL/6 mice and the expression of CYP27A1 in the airways was analyzed by immunostaining. The effect of pre-treatment with PBS or CYP27A1 inhibitors on the cell fraction in the bronchoalveolar lavage fluid (BALF) was analyzed in the murine model. In vitro, BEAS-2B cells were treated with HDM and the levels of CYP27A1 expression were examined. Furthermore, the effect of 27-HC on the expressions of E-cadherin and ZO-1 in the cells was analyzed. The amounts of RANTES and eotaxin from the 27-HC-treated cells were analyzed by ELISA. RESULTS The administration of HDM increased the expression of CYP27A1 in the airways of mice as well as the number of eosinophils in the BALF. CYP27A1 inhibitors ameliorated the HDM-induced increase in the number of eosinophils in the BALF. Treatment with HDM increased the expression of CYP27A1 in BEAS-2B cells. The administration of 27-HC to BEAS-2B cells suppressed the expression of E-cadherin and ZO-1, and augmented the production of RANTES and eotaxin. CONCLUSIONS The results of this study suggest that aeroallergen could enhance the induction of CYP27A1, leading to allergic airway inflammation and disruption of the airway epithelial tight junction through 27-HC production.
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Affiliation(s)
- Tatsunori Ito
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomohiro Ichikawa
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Mitsuhiro Yamada
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuichiro Hashimoto
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoya Fujino
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tadahisa Numakura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yusaku Sasaki
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ayumi Suzuki
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Katsuya Takita
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hirohito Sano
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yorihiko Kyogoku
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takuya Saito
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Akira Koarai
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tsutomu Tamada
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hisatoshi Sugiura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
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Chen R, Dai J. Lipid metabolism in idiopathic pulmonary fibrosis: From pathogenesis to therapy. J Mol Med (Berl) 2023; 101:905-915. [PMID: 37289208 DOI: 10.1007/s00109-023-02336-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/09/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic irreversible interstitial lung disease characterized by a progressive decline in lung function. The etiology of IPF is unknown, which poses a significant challenge to the treatment of IPF. Recent studies have identified a strong association between lipid metabolism and the development of IPF. Qualitative and quantitative analysis of small molecule metabolites using lipidomics reveals that lipid metabolic reprogramming plays a role in the pathogenesis of IPF. Lipids such as fatty acids, cholesterol, arachidonic acid metabolites, and phospholipids are involved in the onset and progression of IPF by inducing endoplasmic reticulum stress, promoting cell apoptosis, and enhancing the expression of pro-fibrotic biomarkers. Therefore, targeting lipid metabolism can provide a promising therapeutic strategy for pulmonary fibrosis. This review focuses on lipid metabolism in the pathogenesis of pulmonary fibrosis.
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Affiliation(s)
- Ranxun Chen
- Department of Pulmonary and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - Jinghong Dai
- Department of Pulmonary and Critical Care Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China.
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Ding X, Qin J, Huang F, Feng F, Luo L. The combination of machine learning and untargeted metabolomics identifies the lipid metabolism -related gene CH25H as a potential biomarker in asthma. Inflamm Res 2023; 72:1099-1119. [PMID: 37081162 DOI: 10.1007/s00011-023-01732-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/27/2023] [Accepted: 04/11/2023] [Indexed: 04/22/2023] Open
Abstract
BACKGROUND Lipids, significant signaling molecules, regulate a multitude of cellular responses and biological pathways in asthma which are closely associated with disease onset and progression. However, the characteristic lipid genes and metabolites in asthma remain to be explored. It is also necessary to further investigate the role of lipid molecules in asthma based on high-throughput data. OBJECTIVE To explore the biomarkers and molecular mechanisms associated with lipid metabolism in asthma. METHODS In this study, we selected three mouse-derived datasets and one human dataset (GSE41665, GSE41667, GSE3184 and GSE67472) from the GEO database. Five machine learning algorithms, LASSO, SVM-RFE, Boruta, XGBoost and RF, were used to identify core gene. Additionally, we used non-negative matrix breakdown (NMF) clustering to identify two lipid molecular subgroups and constructed a lipid metabolism score by principal component analysis (PCA) to differentiate the subtypes. Finally, Western blot confirmed the altered expression levels of core genes in OVA (ovalbumin) and HDM+LPS (house dust mite+lipopolysaccharide) stimulated and challenged BALB/c mice, respectively. Results of non-targeted metabolomics revealed multiple differentially expressed metabolites in the plasma of OVA-induced asthmatic mice. RESULTS Cholesterol 25-hydroxylase (CH25H) was finally localized as a core lipid metabolism gene in asthma and was verified to be highly expressed in two mouse models of asthma. Five-gene lipid metabolism constructed from CYP2E1, CH25H, PTGES, ALOX15 and ME1 was able to distinguish the subtypes effectively. The results of non-targeted metabolomics showed that most of the aberrantly expressed metabolites in the plasma of asthmatic mice were lipids, such as LPC 16:0, LPC 18:1 and LPA 18:1. CONCLUSION Our findings imply that the lipid-related gene CH25H may be a useful biomarker in the diagnosis of asthma.
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Affiliation(s)
- Xuexuan Ding
- The First Clinical College, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China
| | - Jingtong Qin
- The First Clinical College, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China
| | - Fangfang Huang
- Graduate School, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China
| | - Fuhai Feng
- The First Clinical College, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China
| | - Lianxiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China.
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, 524023, Guangdong, China.
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Park J, Jang J, Cha SR, Baek H, Lee J, Hong SH, Lee HA, Lee TJ, Yang SR. L-carnosine Attenuates Bleomycin-Induced Oxidative Stress via NFκB Pathway in the Pathogenesis of Pulmonary Fibrosis. Antioxidants (Basel) 2022; 11:antiox11122462. [PMID: 36552670 PMCID: PMC9774395 DOI: 10.3390/antiox11122462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/08/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Idiopathic Pulmonary fibrosis (IPF), a chronic interstitial lung disease, has pulmonary manifestations clinically characterized by collagen deposition, epithelial cell injury, and a decline in lung function. L-carnosine, a dipeptide consisting of β-alanine and L-histidine, has demonstrated a therapeutic effect on various diseases because of its pivotal function. Despite the effect of L-carnosine in experimental IPF mice, its anti-oxidative effect and associated intercellular pathway, particularly alveolar epithelial cells, remain unknown. Therefore, we demonstrated the anti-fibrotic and anti-inflammatory effects of L-carnosine via Reactive oxygen species (ROS) regulation in bleomycin (BLM)-induced IPF mice. The mice were intratracheally injected with BLM (3 mg/kg) and L-carnosine (150 mg/kg) was orally administrated for 2 weeks. BLM exposure increased the protein level of Nox2, Nox4, p53, and Caspase-3, whereas L-carnosine treatment suppressed the protein level of Nox2, Nox4, p53, and Caspase-3 cleavage in mice. In addition, the total SOD activity and mRNA level of Sod2, catalase, and Nqo1 increased in mice treated with L-carnosine. At the cellular level, a human fibroblast (MRC-5) and mouse alveolar epithelial cell (MLE-12) were exposed to TGFβ1 following L-carnosine treatment to induce fibrogenesis. Moreover, MLE-12 cells were exposed to cigarette smoke extract (CSE). Consequently, L-carnosine treatment ameliorated fibrogenesis in fibroblasts and alveolar epithelial cells, and inflammation induced by ROS and CSE exposure was ameliorated. These results were associated with the inhibition of the NFκB pathway. Collectively, our data indicate that L-carnosine induces anti-inflammatory and anti-fibrotic effects on alveolar epithelial cells against the pathogenesis of IPF.
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Affiliation(s)
- Jaehyun Park
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, Gangwondaehakgil l, Chuncheon 24341, Gangwon, Republic of Korea
| | - Jimin Jang
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, Gangwondaehakgil l, Chuncheon 24341, Gangwon, Republic of Korea
| | - Sang-Ryul Cha
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, Gangwondaehakgil l, Chuncheon 24341, Gangwon, Republic of Korea
| | - Hyosin Baek
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, Gangwondaehakgil l, Chuncheon 24341, Gangwon, Republic of Korea
| | - Jooyeon Lee
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, Gangwondaehakgil l, Chuncheon 24341, Gangwon, Republic of Korea
| | - Seok-Ho Hong
- Department of Internal Medicine, School of Medicine, Kangwon National University, Gangwondaehakgil 1, Chuncheon 24341, Gangwon, Republic of Korea
| | - Hyang-Ah Lee
- Department of Obstetrics and Gynecology, School of Medicine, Kangwon National University, Gangwondaehakgil 1, Chuncheon 24341, Gangwon, Republic of Korea
| | - Tae-Jin Lee
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon 24341, Gangwon, Republic of Korea
- Correspondence: (T.-J.L.); (S.-R.Y.); Tel.: +82-33-250-6481 (T.-J.L.); 82-33-250-7883 (S.-R.Y.)
| | - Se-Ran Yang
- Department of Thoracic and Cardiovascular Surgery, School of Medicine, Kangwon National University, Gangwondaehakgil l, Chuncheon 24341, Gangwon, Republic of Korea
- Correspondence: (T.-J.L.); (S.-R.Y.); Tel.: +82-33-250-6481 (T.-J.L.); 82-33-250-7883 (S.-R.Y.)
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6
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Ejam SS, Saleh RO, Catalan Opulencia MJ, Najm MA, Makhmudova A, Jalil AT, Abdelbasset WK, Al-Gazally ME, Hammid AT, Mustafa YF, Sergeevna SE, Karampoor S, Mirzaei R. Pathogenic role of 25-hydroxycholesterol in cancer development and progression. Future Oncol 2022; 18:4415-4442. [PMID: 36651359 DOI: 10.2217/fon-2022-0819] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Cholesterol is an essential lipid that serves several important functions, including maintaining the homeostasis of cells, acting as a precursor to bile acid and steroid hormones and preserving the stability of membrane lipid rafts. 25-hydroxycholesterol (25-HC) is a cholesterol derivative that may be formed from cholesterol. 25-HC is a crucial component in various biological activities, including cholesterol metabolism. In recent years, growing evidence has shown that 25-HC performs a critical function in the etiology of cancer, infectious diseases and autoimmune disorders. This review will summarize the latest findings regarding 25-HC, including its biogenesis, immunomodulatory properties and role in innate/adaptive immunity, inflammation and the development of various types of cancer.
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Affiliation(s)
| | - Raed Obaid Saleh
- Department of Pharmacy, Al-Maarif University College, Al-Anbar, Iraq
| | | | - Mazin Aa Najm
- Pharmaceutical Chemistry Department, College of Pharmacy, Al-Ayen University, Thi-Qar, Iraq
| | - Aziza Makhmudova
- Department of Social Sciences & Humanities, Samarkand State Medical Institute, Samarkand, Uzbekistan
- Department of Scientific Affairs, Tashkent State Dental Institute, Makhtumkuli Street 103, Tashkent, 100047, Uzbekistan
| | - Abduladheem Turki Jalil
- Medical Laboratories Techniques Department, Al-Mustaqbal University College, Babylon, Hilla, 51001, Iraq
| | - Walid Kamal Abdelbasset
- Department of Health & Rehabilitation Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al Kharj, Saudi Arabia
- Department of Physical Therapy, Kasr Al-Aini Hospital, Cairo University, Giza, Egypt
| | | | - Ali Thaeer Hammid
- Computer Engineering Techniques Department, Faculty of Information Technology, Imam Ja'afar Al-Sadiq University, Baghdad, Iraq
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, 41001, Iraq
| | - Sergushina Elena Sergeevna
- National Research Ogarev Mordovia State University, 68 Bolshevitskaya Street, Republic of Mordovia, Saransk, 430005, Russia
| | - Sajad Karampoor
- Gastrointestinal & Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Rasoul Mirzaei
- Venom & Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
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Li J, Zhai X, Sun X, Cao S, Yuan Q, Wang J. Metabolic reprogramming of pulmonary fibrosis. Front Pharmacol 2022; 13:1031890. [PMID: 36452229 PMCID: PMC9702072 DOI: 10.3389/fphar.2022.1031890] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/01/2022] [Indexed: 08/13/2023] Open
Abstract
Pulmonary fibrosis is a progressive and intractable lung disease with fibrotic features that affects alveoli elasticity, which leading to higher rates of hospitalization and mortality worldwide. Pulmonary fibrosis is initiated by repetitive localized micro-damages of the alveolar epithelium, which subsequently triggers aberrant epithelial-fibroblast communication and myofibroblasts production in the extracellular matrix, resulting in massive extracellular matrix accumulation and interstitial remodeling. The major cell types responsible for pulmonary fibrosis are myofibroblasts, alveolar epithelial cells, macrophages, and endothelial cells. Recent studies have demonstrated that metabolic reprogramming or dysregulation of these cells exerts their profibrotic role via affecting pathological mechanisms such as autophagy, apoptosis, aging, and inflammatory responses, which ultimately contributes to the development of pulmonary fibrosis. This review summarizes recent findings on metabolic reprogramming that occur in the aforementioned cells during pulmonary fibrosis, especially those associated with glucose, lipid, and amino acid metabolism, with the aim of identifying novel treatment targets for pulmonary fibrosis.
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Affiliation(s)
- Jiaxin Li
- Department of Emergency Medicine, Qilu Hospital of Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Chest Pain Center, Qilu Hospital of Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Xiaoxuan Zhai
- Department of Emergency Medicine, Qilu Hospital of Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Chest Pain Center, Qilu Hospital of Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Xiao Sun
- Department of Emergency Medicine, Qilu Hospital of Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Chest Pain Center, Qilu Hospital of Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Shengchuan Cao
- Department of Emergency Medicine, Qilu Hospital of Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Chest Pain Center, Qilu Hospital of Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Qiuhuan Yuan
- Department of Emergency Medicine, Qilu Hospital of Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Chest Pain Center, Qilu Hospital of Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Jiali Wang
- Department of Emergency Medicine, Qilu Hospital of Shandong University, Jinan, China
- Shandong Provincial Clinical Research Center for Emergency and Critical Care Medicine, Institute of Emergency and Critical Care Medicine of Shandong University, Chest Pain Center, Qilu Hospital of Shandong University, Jinan, China
- Key Laboratory of Emergency and Critical Care Medicine of Shandong Province, Key Laboratory of Cardiopulmonary-Cerebral Resuscitation Research of Shandong Province, Shandong Provincial Engineering Laboratory for Emergency and Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese Ministry of Health and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Qilu Hospital of Shandong University, Jinan, China
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8
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Kletukhina S, Mutallapova G, Titova A, Gomzikova M. Role of Mesenchymal Stem Cells and Extracellular Vesicles in Idiopathic Pulmonary Fibrosis. Int J Mol Sci 2022; 23:ijms231911212. [PMID: 36232511 PMCID: PMC9569825 DOI: 10.3390/ijms231911212] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/20/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive interstitial fibrotic disease that leads to disability and death within 5 years of diagnosis. Pulmonary fibrosis is a disease with a multifactorial etiology. The concept of aberrant regeneration of the pulmonary epithelium reveals the pathogenesis of IPF, according to which repeated damage and death of alveolar epithelial cells is the main mechanism leading to the development of progressive IPF. Cell death provokes the migration, proliferation and activation of fibroblasts, which overproduce extracellular matrix, resulting in fibrotic deformity of the lung tissue. Mesenchymal stem cells (MSCs) and extracellular vesicles (EVs) are promising therapies for pulmonary fibrosis. MSCs, and EVs derived from MSCs, modulate the activity of immune cells, inhibit the expression of profibrotic genes, reduce collagen deposition and promote the repair of damaged lung tissue. This review considers the molecular mechanisms of the development of IPF and the multifaceted role of MSCs in the therapy of IPF. Currently, EVs-MSCs are regarded as a promising cell-free therapy tool, so in this review we discuss the results available to date of the use of EVs-MSCs for lung tissue repair.
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Affiliation(s)
- Sevindzh Kletukhina
- Laboratory of Intercellular Communication, Kazan Federal University, 420008 Kazan, Russia
| | - Guzel Mutallapova
- Laboratory of Intercellular Communication, Kazan Federal University, 420008 Kazan, Russia
| | - Angelina Titova
- Morphology and General Pathology Department, Kazan Federal University, 420008 Kazan, Russia
| | - Marina Gomzikova
- Laboratory of Intercellular Communication, Kazan Federal University, 420008 Kazan, Russia
- Correspondence: ; Tel.: +7-917-8572269
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Extracellular Lipids in the Lung and Their Role in Pulmonary Fibrosis. Cells 2022; 11:cells11071209. [PMID: 35406772 PMCID: PMC8997955 DOI: 10.3390/cells11071209] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/20/2022] [Accepted: 03/25/2022] [Indexed: 02/04/2023] Open
Abstract
Lipids are major actors and regulators of physiological processes within the lung. Initial research has described their critical role in tissue homeostasis and in orchestrating cellular communication to allow respiration. Over the past decades, a growing body of research has also emphasized how lipids and their metabolism may be altered, contributing to the development and progression of chronic lung diseases such as pulmonary fibrosis. In this review, we first describe the current working model of the mechanisms of lung fibrogenesis before introducing lipids and their cellular metabolism. We then summarize the evidence of altered lipid homeostasis during pulmonary fibrosis, focusing on their extracellular forms. Finally, we highlight how lipid targeting may open avenues to develop therapeutic options for patients with lung fibrosis.
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10
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Suliman HB, Healy Z, Zobi F, Kraft BD, Welty-Wolf K, Smith J, Barkauskas C, Piantadosi CA. Nuclear respiratory factor-1 negatively regulates TGF-β1 and attenuates pulmonary fibrosis. iScience 2022; 25:103535. [PMID: 34977500 PMCID: PMC8683592 DOI: 10.1016/j.isci.2021.103535] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 09/02/2021] [Accepted: 11/25/2021] [Indexed: 12/27/2022] Open
Abstract
The preclinical model of bleomycin-induced lung fibrosis is useful to study mechanisms related to human pulmonary fibrosis. Using BLM in mice, we find low HO-1 expression. Although a unique Rhenium-CO-releasing molecule (ReCORM) up-regulates HO-1, NRF-1, CCN5, and SMAD7, it reduces TGFβ1, TGFβr1, collagen, α-SMA, and phosphorylated Smad2/3 levels in mouse lung and in human lung fibroblasts. ChIP assay studies confirm NRF-1 binding to the promoters of TGFβ1 repressors CCN5 and Smad7. ReCORM did not blunt lung fibrosis in Hmox1-deficient alveolar type 2 cell knockout mice, suggesting this gene participates in lung protection. In human lung fibroblasts, TGFβ1-dependent production of α-SMA is abolished by ReCORM or by NRF-1 gene transfection. We demonstrate effective HO-1/NRF-1 signaling in lung AT2 cells protects against BLM induced lung injury and fibrosis by maintaining mitochondrial health, function, and suppressing the TGFβ1 pathway. Thus, protection of AT2 cell mitochondrial integrity via HO-1/NRF-1 presents an innovative therapeutic target.
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Affiliation(s)
- Hagir B. Suliman
- Department of Medicine, Duke University School of Medicine, 200 Trent Drive, Durham, NC 27710, USA
- Department of Anaesthesiology, Duke University School of Medicine, Durham, NC, USA
- Department of Pathology, Duke University School of Medicine, Durham, NC, USA
| | - Zachary Healy
- Department of Medicine, Duke University School of Medicine, 200 Trent Drive, Durham, NC 27710, USA
| | - Fabio Zobi
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | - Bryan D. Kraft
- Department of Medicine, Duke University School of Medicine, 200 Trent Drive, Durham, NC 27710, USA
| | - Karen Welty-Wolf
- Department of Medicine, Duke University School of Medicine, 200 Trent Drive, Durham, NC 27710, USA
| | - Joshua Smith
- Department of Medicine, Duke University School of Medicine, 200 Trent Drive, Durham, NC 27710, USA
| | - Christina Barkauskas
- Department of Medicine, Duke University School of Medicine, 200 Trent Drive, Durham, NC 27710, USA
| | - Claude A. Piantadosi
- Department of Medicine, Duke University School of Medicine, 200 Trent Drive, Durham, NC 27710, USA
- Department of Anaesthesiology, Duke University School of Medicine, Durham, NC, USA
- Department of Pathology, Duke University School of Medicine, Durham, NC, USA
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11
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You JS, Lim H, Seo JY, Kang KR, Kim DK, Oh JS, Seo YS, Lee GJ, Kim JS, Kim HJ, Yu SK, Kim JS. 25-Hydroxycholesterol-Induced Oxiapoptophagy in L929 Mouse Fibroblast Cell Line. Molecules 2021; 27:199. [PMID: 35011433 PMCID: PMC8746689 DOI: 10.3390/molecules27010199] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/17/2021] [Accepted: 12/27/2021] [Indexed: 12/12/2022] Open
Abstract
25-hydroxycholesterol (25-HC) is an oxysterol synthesized from cholesterol by cholesterol-25-hydroxylase during cholesterol metabolism. The aim of this study was to verify whether 25-HC induces oxiapoptophagy in fibroblasts. 25-HC not only decreased the survival of L929 cells, but also increased the number of cells with condensed chromatin and altered morphology. Fluorescence-activated cell sorting results showed that there was a dose-dependent increase in the apoptotic populations of L929 cells upon treatment with 25-HC. 25-HC-induced apoptotic cell death was mediated by the death receptor-dependent extrinsic and mitochondria-dependent intrinsic apoptosis pathway, through the cascade activation of caspases including caspase-8, -9, and -3 in L929 cells. There was an increase in the levels of reactive oxygen species and inflammatory mediators such as inducible nitric oxide synthase, cyclooxygenase-2, nitric oxide, and prostaglandin E2 in L929 cells treated with 25-HC. Moreover, 25-HC caused an increase in the expression of beclin-1 and microtubule-associated protein 1A/1B-light chain 3, an autophagy biomarker, in L929 cells. There was a significant decrease in the phosphorylation of protein kinase B (Akt) in L929 cells treated with 25-HC. Taken together, 25-HC induced oxiapoptophagy through the modulation of Akt and p53 cellular signaling pathways in L929 cells.
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Affiliation(s)
- Jae-Seek You
- Departments of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju 61452, Korea; (J.-S.Y.); (J.-S.O.)
| | - HyangI Lim
- Institute of Dental Science, School of Dentistry, Chosun University, Gwangju 61452, Korea; (H.L.); (J.-Y.S.); (K.-R.K.); (D.K.K.); (H.-J.K.); (S.-K.Y.)
| | - Jeong-Yeon Seo
- Institute of Dental Science, School of Dentistry, Chosun University, Gwangju 61452, Korea; (H.L.); (J.-Y.S.); (K.-R.K.); (D.K.K.); (H.-J.K.); (S.-K.Y.)
| | - Kyeong-Rok Kang
- Institute of Dental Science, School of Dentistry, Chosun University, Gwangju 61452, Korea; (H.L.); (J.-Y.S.); (K.-R.K.); (D.K.K.); (H.-J.K.); (S.-K.Y.)
| | - Do Kyung Kim
- Institute of Dental Science, School of Dentistry, Chosun University, Gwangju 61452, Korea; (H.L.); (J.-Y.S.); (K.-R.K.); (D.K.K.); (H.-J.K.); (S.-K.Y.)
| | - Ji-Su Oh
- Departments of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju 61452, Korea; (J.-S.Y.); (J.-S.O.)
| | - Yo-Seob Seo
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Chosun University, Gwangju 61452, Korea; (Y.-S.S.); (J.-S.K.)
| | - Gyeong-Je Lee
- Department of Prosthodontics, School of Dentistry, Chosun University, Gwangju 61452, Korea;
| | - Jin-Soo Kim
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Chosun University, Gwangju 61452, Korea; (Y.-S.S.); (J.-S.K.)
| | - Heung-Joong Kim
- Institute of Dental Science, School of Dentistry, Chosun University, Gwangju 61452, Korea; (H.L.); (J.-Y.S.); (K.-R.K.); (D.K.K.); (H.-J.K.); (S.-K.Y.)
| | - Sun-Kyoung Yu
- Institute of Dental Science, School of Dentistry, Chosun University, Gwangju 61452, Korea; (H.L.); (J.-Y.S.); (K.-R.K.); (D.K.K.); (H.-J.K.); (S.-K.Y.)
| | - Jae-Sung Kim
- Institute of Dental Science, School of Dentistry, Chosun University, Gwangju 61452, Korea; (H.L.); (J.-Y.S.); (K.-R.K.); (D.K.K.); (H.-J.K.); (S.-K.Y.)
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12
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Bottemanne P, Paquot A, Ameraoui H, Guillemot-Legris O, Alhouayek M, Muccioli GG. 25-Hydroxycholesterol metabolism is altered by lung inflammation, and its local administration modulates lung inflammation in mice. FASEB J 2021; 35:e21514. [PMID: 33734509 DOI: 10.1096/fj.202002555r] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/18/2021] [Accepted: 02/24/2021] [Indexed: 12/12/2022]
Abstract
Inflammation is a critical component of many lung diseases including asthma and acute lung injury (ALI). Using high-performance liquid chromatography-mass spectrometry, we quantified the levels of oxysterols in two different murine models of lung diseases. These are lipid mediators derived from cholesterol and known to modulate immunity and inflammation. Interestingly, 25-hydroxycholesterol (25-OHC) was the only oxysterol with altered levels during lung inflammation, and its levels were differently affected according to the model. Therefore, we sought to assess how this oxysterol would affect lung inflammatory responses. In a model of lipopolysaccharide (LPS)-induced acute lung inflammation, 25-OHC levels were increased, and most of the hallmarks of the model (eg, leukocyte recruitment, mRNA expression, and secretion of inflammatory cytokines) were decreased following its intratracheal administration. We also found that, when administered in the lung, 25-OHC is metabolized locally into 25-hydroxycholesterol-3-sulfate and 7α,25-dihydroxycholesterol. Their administration in the lungs did not recapitulate all the effects of 25-OHC. Conversely, in a model of allergic asthma induced by intranasal administration of house dust mites (HDM), 25-OHC levels were decreased, and when intranasally administered, this oxysterol worsened the hallmarks of the model (eg, leukocyte recruitment, tissue remodeling [epithelium thickening and peribranchial fibrosis], and cytokine expression) and induced changes in leukotriene levels. Ex vivo, we found that 25-OHC decreases LPS-induced primary alveolar macrophage activation while having no effect on neutrophil activation. Its sulfated metabolite, 25-hydroxycholesterol-3-sulfate, decreased neutrophil, but not macrophage activation. Taken together, our data support a differential role of 25-OHC in ALI and allergic inflammation models.
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Affiliation(s)
- Pauline Bottemanne
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Adrien Paquot
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Hafsa Ameraoui
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Owein Guillemot-Legris
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Mireille Alhouayek
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - Giulio G Muccioli
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
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13
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Hudson NJ, Reverter A, Griffiths WJ, Yutuc E, Wang Y, Jeanes A, McWilliam S, Pethick DW, Greenwood PL. Gene expression identifies metabolic and functional differences between intramuscular and subcutaneous adipocytes in cattle. BMC Genomics 2020; 21:77. [PMID: 31992204 PMCID: PMC6986065 DOI: 10.1186/s12864-020-6505-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 01/17/2020] [Indexed: 01/22/2023] Open
Abstract
Background This study used a genome-wide screen of gene expression to better understand the metabolic and functional differences between commercially valuable intramuscular fat (IMF) and commercially wasteful subcutaneous (SC) fat depots in Bos taurus beef cattle. Results We confirmed many findings previously made at the biochemical level and made new discoveries. The fundamental lipogenic machinery, such as ACACA and FASN encoding the rate limiting Acetyl CoA carboxylase and Fatty Acid synthase were expressed at 1.6–1.8 fold lower levels in IMF, consistent with previous findings. The FA elongation pathway including the rate limiting ELOVL6 was also coordinately downregulated in IMF compared to SC as expected. A 2-fold lower expression in IMF of ACSS2 encoding Acetyl Coenzyme A synthetase is consistent with utilisation of less acetate for lipogenesis in IMF compared to SC as previously determined using radioisotope incorporation. Reduced saturation of fat in the SC depot is reflected by 2.4 fold higher expression of the SCD gene encoding the Δ9 desaturase enzyme. Surprisingly, CH25H encoding the cholesterol 25 hydroxylase enzyme was ~ 36 fold upregulated in IMF compared to SC. Moreover, its expression in whole muscle tissue appears representative of the proportional representation of bovine marbling adipocytes. This suite of observations prompted quantification of a set of oxysterols (oxidised forms of cholesterol) in the plasma of 8 cattle exhibiting varying IMF. Using Liquid Chromatography-Mass Spectrometry (LC-MS) we found the levels of several oxysterols were significantly associated with multiple marbling measurements across the musculature, but (with just one exception) no other carcass phenotypes. Conclusions These data build on our molecular understanding of ruminant fat depot biology and suggest oxysterols represent a promising circulating biomarker for cattle marbling.
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Affiliation(s)
- Nicholas J Hudson
- School of Agriculture and Food Sciences, University of Queensland, Gatton, QLD, Australia.
| | - Antonio Reverter
- Agriculture, Commonwealth Science and Industrial Research Organisation, 306 Carmody Road, Brisbane, QLD, Australia
| | - William J Griffiths
- Swansea University Medical School, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK
| | - Eylan Yutuc
- Swansea University Medical School, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK
| | - Yuqin Wang
- Swansea University Medical School, Swansea University, Singleton Park, Swansea, SA2 8PP, Wales, UK
| | - Angela Jeanes
- Institute for Molecular Biosciences, University of Queensland, St. Lucia, Brisbane, QLD, Australia
| | - Sean McWilliam
- Agriculture, Commonwealth Science and Industrial Research Organisation, 306 Carmody Road, Brisbane, QLD, Australia
| | - David W Pethick
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA, 6150, Australia
| | - Paul L Greenwood
- New South Wales Department of Primary Industries, Armidale Livestock Industries Centre, University of New England, Armidale, NSW, 2351, Australia
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14
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Raselli T, Wyss A, Gonzalez Alvarado MN, Weder B, Mamie C, Spalinger MR, Van Haaften WT, Dijkstra G, Sailer AW, Imenez Silva PH, Wagner CA, Tosevski V, Leibl S, Scharl M, Rogler G, Hausmann M, Misselwitz B. The Oxysterol Synthesising Enzyme CH25H Contributes to the Development of Intestinal Fibrosis. J Crohns Colitis 2019; 13:1186-1200. [PMID: 31220227 PMCID: PMC6751338 DOI: 10.1093/ecco-jcc/jjz039] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Intestinal fibrosis and stenosis are common complications of Crohn's disease [CD], frequently requiring surgery. Anti-inflammatory strategies can only partially prevent fibrosis; hence, anti-fibrotic therapies remain an unmet clinical need. Oxysterols are oxidised cholesterol derivatives with important roles in various biological processes. The enzyme cholesterol 25-hydroxylase [CH25H] converts cholesterol to 25-hydroxycholesterol [25-HC], which modulates immune responses and oxidative stress. In human intestinal samples from CD patients, we found a strong correlation of CH25H mRNA expression with the expression of fibrosis markers. We demonstrate reduced intestinal fibrosis in mice deficient for the CH25H enzyme, using the sodium dextran sulphate [DSS]-induced chronic colitis model. Additionally, using a heterotopic transplantation model of intestinal fibrosis, we demonstrate reduced collagen deposition and lower concentrations of hydroxyproline in CH25H knockouts. In the heterotopic transplant model, CH25H was expressed in fibroblasts. Taken together, our findings indicate an involvement of oxysterol synthesis in the pathogenesis of intestinal fibrosis.
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Affiliation(s)
- T Raselli
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - A Wyss
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - M N Gonzalez Alvarado
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - B Weder
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - C Mamie
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - M R Spalinger
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - W T Van Haaften
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - G Dijkstra
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - A W Sailer
- Chemical Biology & Therapeutics, Novartis Institutes for BioMedical Research, Basel, Switzerland
| | | | - C A Wagner
- Institute of Physiology, Zurich University, Zurich, Switzerland
| | - V Tosevski
- Mass Cytometry Facility, Zurich University, Zurich, Switzerland
| | - Sebastian Leibl
- Institute of Pathology and Molecular Pathology, University Hospital Zurich and Zurich University, Zurich, Switzerland
| | - M Scharl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - G Rogler
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - M Hausmann
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - B Misselwitz
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
- Corresponding author: Dr. Benjamin Misselwitz, Dept. of Visceral Surgery and Medicine, Inselspital Bern and Bern University, Freiburgstr 18, 3010 Bern, Switzerland.
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15
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Zhang Q, Tu W, Tian K, Han L, Wang Q, Chen P, Zhou X. Sirtuin 6 inhibits myofibroblast differentiation via inactivating transforming growth factor-β1/Smad2 and nuclear factor-κB signaling pathways in human fetal lung fibroblasts. J Cell Biochem 2018; 120:93-104. [PMID: 30230565 DOI: 10.1002/jcb.27128] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 05/02/2018] [Indexed: 12/24/2022]
Abstract
Fibroblast-to-myofibroblast differentiation, which is characterized by increased expression of α-smooth muscle actin, is known to be involved in the pathogenesis of idiopathic pulmonary fibrosis. Sirtuin 6 (SIRT6), a member of the sirtuin family, has been proved to inhibit epithelial-to-mesenchymal transition during idiopathic pulmonary fibrosis. However, the function of SIRT6 in lung myofibroblast differentiation is still obscure. Transforming growth factor-β1 (TGF-β1) is one of the main factors that can powerfully promote myofibroblast differentiation. In the current study, we aimed to explore the role of SIRT6 in the cellular model of fibroblast-to-myofibroblast differentiation induced by TGF-β1 using human fetal lung fibroblasts (HFL1). We demonstrated that the SIRT6 protein level is upregulated by TGF-β1 in HFL1 cells. Overexpression of SIRT6 significantly suppresses TGF-β1-induced myofibroblast differentiation in HFL1 cells. Mechanistically, SIRT6 decreases phosphorylation and nuclear translocation of Smad2 under TGF-β1 stimulation. Nevertheless, mutant SIRT6 (H133Y) without histone deacetylase activity fails to inhibit phosphorylation and nuclear translocation of Smad2. Meanwhile, SIRT6 interacts with the nuclear factor-κB (NF-κB) subunit p65 and represses TGF-β1-induced NF-κB-dependent transcriptional activity, which is also dependent on its deacetylase activity. Overexpression of wild-type SIRT6 but not the H133Y mutant inhibits the expression of NF-κB-dependent genes including interleukin (IL)-1β, IL-6 and matrix metalloproteinase-9 (MMP-9) induced by TGF-β1, all of which have been demonstrated to promote myofibroblast differentiation. Collectively, our study reveals that SIRT6 prevents TGF-β1-induced lung myofibroblast differentiation through inhibiting TGF-β1/Smad2 and NF-κB signaling pathways.
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Affiliation(s)
- Qian Zhang
- Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wei Tu
- Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kunming Tian
- Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lianyong Han
- Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qin Wang
- Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Panpan Chen
- Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xue Zhou
- Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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16
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Jia J, Conlon TM, Sarker RS, Taşdemir D, Smirnova NF, Srivastava B, Verleden SE, Güneş G, Wu X, Prehn C, Gao J, Heinzelmann K, Lintelmann J, Irmler M, Pfeiffer S, Schloter M, Zimmermann R, Hrabé de Angelis M, Beckers J, Adamski J, Bayram H, Eickelberg O, Yildirim AÖ. Cholesterol metabolism promotes B-cell positioning during immune pathogenesis of chronic obstructive pulmonary disease. EMBO Mol Med 2018; 10:e8349. [PMID: 29674392 PMCID: PMC5938615 DOI: 10.15252/emmm.201708349] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 03/08/2018] [Accepted: 03/14/2018] [Indexed: 12/30/2022] Open
Abstract
The development of chronic obstructive pulmonary disease (COPD) pathogenesis remains unclear, but emerging evidence supports a crucial role for inducible bronchus-associated lymphoid tissue (iBALT) in disease progression. Mechanisms underlying iBALT generation, particularly during chronic CS exposure, remain to be defined. Oxysterol metabolism of cholesterol is crucial to immune cell localization in secondary lymphoid tissue. Here, we demonstrate that oxysterols also critically regulate iBALT generation and the immune pathogenesis of COPD In both COPD patients and cigarette smoke (CS)-exposed mice, we identified significantly upregulated CH25H and CYP7B1 expression in airway epithelial cells, regulating CS-induced B-cell migration and iBALT formation. Mice deficient in CH25H or the oxysterol receptor EBI2 exhibited decreased iBALT and subsequent CS-induced emphysema. Further, inhibition of the oxysterol pathway using clotrimazole resolved iBALT formation and attenuated CS-induced emphysema in vivo therapeutically. Collectively, our studies are the first to mechanistically interrogate oxysterol-dependent iBALT formation in the pathogenesis of COPD, and identify a novel therapeutic target for the treatment of COPD and potentially other diseases driven by the generation of tertiary lymphoid organs.
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Affiliation(s)
- Jie Jia
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
- Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Thomas M Conlon
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
- Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Rim Sj Sarker
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
- Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Demet Taşdemir
- Department of Chest Diseases, School of Medicine, University of Gaziantep, Gaziantep, Turkey
| | - Natalia F Smirnova
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
- Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Barkha Srivastava
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
- Member of the German Center for Lung Research (DZL), Munich, Germany
| | | | - Gizem Güneş
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
- Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Xiao Wu
- Joint Mass Spectrometry Centre, Comprehensive Molecular Analytics, Helmholtz Zentrum München, Munich, Germany
| | - Cornelia Prehn
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Munich, Germany
- German Center for Diabetes Research (DZD), Munich, Germany
| | - Jiaqi Gao
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
- Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Katharina Heinzelmann
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
- Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Jutta Lintelmann
- Joint Mass Spectrometry Centre, Comprehensive Molecular Analytics, Helmholtz Zentrum München, Munich, Germany
| | - Martin Irmler
- Institute of Experimental Genetics, Helmholtz Zentrum München, Munich, Germany
| | - Stefan Pfeiffer
- Research Unit Comparative Microbiome Analysis, Helmholtz Zentrum München, Munich, Germany
| | - Michael Schloter
- Research Unit Comparative Microbiome Analysis, Helmholtz Zentrum München, Munich, Germany
| | - Ralf Zimmermann
- Joint Mass Spectrometry Centre, Comprehensive Molecular Analytics, Helmholtz Zentrum München, Munich, Germany
- University of Rostock, Rostock, Germany
| | - Martin Hrabé de Angelis
- German Center for Diabetes Research (DZD), Munich, Germany
- Institute of Experimental Genetics, Helmholtz Zentrum München, Munich, Germany
- Chair of Experimental Genetics, Technische Universität München, Freising-Weihenstephan, Germany
| | - Johannes Beckers
- German Center for Diabetes Research (DZD), Munich, Germany
- Institute of Experimental Genetics, Helmholtz Zentrum München, Munich, Germany
- Chair of Experimental Genetics, Technische Universität München, Freising-Weihenstephan, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Munich, Germany
- German Center for Diabetes Research (DZD), Munich, Germany
- Chair of Experimental Genetics, Technische Universität München, Freising-Weihenstephan, Germany
| | - Hasan Bayram
- Department of Chest Diseases, School of Medicine, University of Gaziantep, Gaziantep, Turkey
- School of Medicine, Koç University, Istanbul, Turkey
| | - Oliver Eickelberg
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
- Member of the German Center for Lung Research (DZL), Munich, Germany
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Denver, CO, USA
| | - Ali Önder Yildirim
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany
- Member of the German Center for Lung Research (DZL), Munich, Germany
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17
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Deiana M, Calfapietra S, Incani A, Atzeri A, Rossin D, Loi R, Sottero B, Iaia N, Poli G, Biasi F. Derangement of intestinal epithelial cell monolayer by dietary cholesterol oxidation products. Free Radic Biol Med 2017; 113:539-550. [PMID: 29102636 DOI: 10.1016/j.freeradbiomed.2017.10.390] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/23/2017] [Accepted: 10/31/2017] [Indexed: 12/22/2022]
Abstract
The emerging role of the diet in the incidence of intestinal inflammatory diseases has stimulated research on the influence of eating habits with pro-inflammatory properties in inducing epithelial barrier disturbance. Cholesterol oxidation products, namely oxysterols, have been shown to promote and sustain oxidative/inflammatory reactions in human digestive tract. This work investigated in an in vitro model the potential ability of a combination of dietary oxysterols representative of a hyper-cholesterol diet to induce the loss of intestinal epithelial layer integrity. The components of the experimental mixture were the main oxysterols stemming from heat-induced cholesterol auto-oxidation, namely 7-ketocholesterol, 5α,6α-and 5β,6β-epoxycholesterol, 7α- and 7β-hydroxycholesterol. These compounds added to monolayers of differentiated CaCo-2 cells in combination or singularly, caused a time-dependent induction of matrix metalloproteinases (MMP)-2 and -9, also known as gelatinases. The hyperactivation of MMP-2 and -9 was found to be associated with decreased levels of the tight junctions zonula occludens-1 (ZO-1), occludin and Junction Adhesion Molecule-A (JAM-A). Together with such a protein loss, particularly evident for ZO-1, a net perturbation of spatial localization of the three tight junctions was observed. Cell monolayer pre-treatment with the selective inhibitor of MMPs ARP100 or polyphenol (-)-epicathechin, previously shown to inhibit NADPH oxidase in the same model system, demonstrated that the decrease of the three tight junction proteins was mainly a consequence of MMPs induction, which was in turn dependent on the pro-oxidant property of the oxysterols investigated. Although further investigation on oxysterols intestinal layer damage mechanism is to be carried on, the consequent - but incomplete - prevention of oxysterols-dependent TJs alteration due to MMPs inhibition, avoided the loss of scaffold protein ZO-1, with possible significant recovery of intestinal monolayer integrity.
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Affiliation(s)
- Monica Deiana
- Dept. of Biomedical Sciences, Pathology Section, University of Cagliari, 09124 Cagliari, Italy.
| | - Simone Calfapietra
- Dept. of Clinical and Biological Sciences, University of Turin, 10043 Orbassano, Turin, Italy.
| | - Alessandra Incani
- Dept. of Biomedical Sciences, Pathology Section, University of Cagliari, 09124 Cagliari, Italy.
| | - Angela Atzeri
- Dept. of Biomedical Sciences, Pathology Section, University of Cagliari, 09124 Cagliari, Italy.
| | - Daniela Rossin
- Dept. of Clinical and Biological Sciences, University of Turin, 10043 Orbassano, Turin, Italy.
| | - Roberto Loi
- Dept. of Biomedical Sciences, Pathology Section, University of Cagliari, 09124 Cagliari, Italy.
| | - Barbara Sottero
- Dept. of Clinical and Biological Sciences, University of Turin, 10043 Orbassano, Turin, Italy.
| | - Noemi Iaia
- Dept. of Clinical and Biological Sciences, University of Turin, 10043 Orbassano, Turin, Italy.
| | - Giuseppe Poli
- Dept. of Clinical and Biological Sciences, University of Turin, 10043 Orbassano, Turin, Italy.
| | - Fiorella Biasi
- Dept. of Clinical and Biological Sciences, University of Turin, 10043 Orbassano, Turin, Italy.
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18
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Esnault S, Bernau K, Torr EE, Bochkov YA, Jarjour NN, Sandbo N. RNA-sequencing analysis of lung primary fibroblast response to eosinophil-degranulation products predicts downstream effects on inflammation, tissue remodeling and lipid metabolism. Respir Res 2017; 18:188. [PMID: 29126429 PMCID: PMC5681771 DOI: 10.1186/s12931-017-0669-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 10/30/2017] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The association of eosinophils with inflammation and tissue remodeling is at least partially due to their release of toxic granule proteins and other mediators, including cytokines. Tissue remodeling and consequent functional defects are affected by activity of connective tissue fibroblasts. Exaggerated fibroblast activation, accumulation and change of phenotype may lead to fibrosis and loss of tissue function. So far, little information has been reported on how eosinophils affect inflammation and tissue remodeling via the activation of fibroblasts. We have recently shown that eosinophil activation with IL-3 led to a robust eosinophil degranulation on immunoglobin-G (IgG) coated plates. Thus, in the present study, we analyze the effects of IL-3-activated eosinophil degranulation products on primary human lung fibroblasts (HLF) using whole transcriptome sequencing. METHODS Conditioned media was obtained from eosinophils that were pre-activated with IL-3 or IL-5 and subsequently cultured for 6 h on IgG to induce degranulation. This conditioned media was added on human lung fibroblasts (HLF) for 24 h and the cell lysates were then subjected to whole transcriptome sequencing to identify global changes in gene expression. Differentially expressed genes were analyzed using the Ingenuity Pathway Analysis (IPA), and validated by qPCR. RESULTS In HLF, the expression level of 300 genes was changed by conditioned media from IL-3-activated eosinophils compared to control fibroblast cultures. Among these 300 genes, the expression level of 35 genes coding for known proteins was upregulated by IL-3- versus IL-5-pre-activated eosinophils. Of the 35 upregulated genes, IPA identified C3, CH25H, CXCL1, CXCL8, CYP1A1, ICAM1, IL6 and UCN2 as having downstream functions on inflammation, tissue remodeling and lipid synthesis. This analysis combined with previous RNA sequencing analyses of eosinophils suggest IL-1ß, OSM and TNFSF12 as potential upstream regulators of fibroblasts. CONCLUSIONS This study has identified several novel pro-inflammatory and pro-remodeling mediators produced by fibroblasts in response to activated eosinophils. These findings may have significant implications on the role of eosinophil/fibroblast interactions in eosinophilic disorders.
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Affiliation(s)
- Stephane Esnault
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, The University of Wisconsin-Madison School of Medicine and Public Health, K4/928 Clinical Science Center MC 9988, 600 Highland Avenue, Madison, WI, 53792, USA.
| | - Ksenija Bernau
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, The University of Wisconsin-Madison School of Medicine and Public Health, K4/928 Clinical Science Center MC 9988, 600 Highland Avenue, Madison, WI, 53792, USA
| | - Elizabeth E Torr
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, The University of Wisconsin-Madison School of Medicine and Public Health, K4/928 Clinical Science Center MC 9988, 600 Highland Avenue, Madison, WI, 53792, USA
| | - Yury A Bochkov
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53792, USA
| | - Nizar N Jarjour
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, The University of Wisconsin-Madison School of Medicine and Public Health, K4/928 Clinical Science Center MC 9988, 600 Highland Avenue, Madison, WI, 53792, USA
| | - Nathan Sandbo
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, The University of Wisconsin-Madison School of Medicine and Public Health, K4/928 Clinical Science Center MC 9988, 600 Highland Avenue, Madison, WI, 53792, USA
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19
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25-hydroxycholesterol promotes RANKL-induced osteoclastogenesis through coordinating NFATc1 and Sp1 complex in the transcription of miR-139-5p. Biochem Biophys Res Commun 2017; 485:736-741. [DOI: 10.1016/j.bbrc.2017.02.118] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 02/23/2017] [Indexed: 01/30/2023]
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20
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Chen L, Zhang L, Xian G, Lv Y, Lin Y, Wang Y. 25-Hydroxycholesterol promotes migration and invasion of lung adenocarcinoma cells. Biochem Biophys Res Commun 2017; 484:857-863. [PMID: 28167281 DOI: 10.1016/j.bbrc.2017.02.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 02/02/2017] [Indexed: 12/14/2022]
Abstract
25-hydroxycholesterol (25-HC) is enzymatically produced by cholesterol 25-hydorxylase in various organs and is involved in many processes, including lipid metabolism, inflammation and the immune response. However, the role of 25-HC in the migration and invasion of lung adenocarcinoma (ADC) cells remains largely unknown. In this study, we demonstrated that 0.1 μM 25-HC promoted ADC cell migration and invasion without affecting cell proliferation, especially after coculture with THP1-derived macrophages. Further investigation showed that 0.1 μM 25-HC significantly stimulated interleukin-1β (IL-1β) secretion in a coculture system and increased the expression of LXR and Snail. IL-1β also mimicked the effect of 25-HC. LXR knockdown notably blocked the 25-HC-induced Snail expression, migration and invasion in both the monoculture system and the coculture system, but it did not impact the effect of IL-1β, which suggested that IL-1β functioned in an LXR-independent manner. These results suggested that 25-HC promoted ADC cell migration and invasion in an LXR-dependent manner in the monoculture system but that in the coculture system, the 25-HC-induced IL-1β secretion enhanced the effect of 25-HC in an LXR-independent manner.
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Affiliation(s)
- Li Chen
- Center Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Lishan Zhang
- Department of Hand and Foot Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Guozhe Xian
- Department of Hepatobiliary Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Yinping Lv
- Department of Medical Engineering, Jinan 250021, China
| | - Yanliang Lin
- Center Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China.
| | - Yibing Wang
- Department of Burn and Plastic Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China.
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21
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Li L, Piao H, Zheng M, Jin Z, Zhao L, Yan G. Sesamin attenuates allergic airway inflammation through the suppression of nuclear factor-kappa B activation. Exp Ther Med 2016; 12:4175-4181. [PMID: 28105144 DOI: 10.3892/etm.2016.3903] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 10/05/2016] [Indexed: 12/30/2022] Open
Abstract
The aim of the present study is to determine the role of sesamin, the most abundant lignan in sesame seed oil, on the regulation of allergic airway inflammation in a murine asthma model. A BALB/c mouse model with allergic asthma was used to evaluate the effects of sesamin on nuclear factor-kappa B (NF-κB) activation. An enzyme-linked immunosorbent assay was used to determine protein expression in bronchoalveolar lavage (BAL) fluids. Hematoxylin and eosin staining was performed to examine histological changes. Moreover, western blot analysis was used to detect the expression of proteins in tissues. Prior to administering sesamin, the mice developed the following pathophysiological features of asthma: An increase in the number of inflammatory cells, increased levels of interleukin (IL)-4, IL-5 and IL-13, decreased levels of interferon-γ in BAL fluids and lung tissues, increased immunoglobulin E (IgE) levels in the serum and an increased activation of NF-κB in lung tissues. Following treatment with sesamin, the mice had evidently reduced peribronchiolar inflammation and airway inflammatory cell recruitment, inhibited production of several cytokines in BAL fluids and lung tissues, and decreased IgE levels. Following inhalation of ovalbumin, the administration of sesamin also inhibited the activation of NF-κB. In addition, sesamin administration reduced the phosphorylation of p38 mitogen-activated protein kinases (MAPKs). The present study demonstrates that sesamin decreases the activation of NF-κB in order to attenuate allergic airway inflammation in a murine model of asthma, possibly via the regulation of phosphorylation of p38 MAPK. These observations provide an important molecular mechanism for the potential use of sesamin in preventing and/or treating asthma, as well as other airway inflammatory disorders.
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Affiliation(s)
- Liangchang Li
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, Jilin 133002, P.R. China
| | - Hongmei Piao
- Department of Respiratory Medicine, Yanbian University, Yanji, Jilin 133000, P.R. China
| | - Mingyu Zheng
- Department of Respiratory Medicine, College of Pharmacy, Yanbian University, Yanji, Jilin 133002, P.R. China
| | - Zhewu Jin
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, Jilin 133002, P.R. China
| | - Liguang Zhao
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, Jilin 133002, P.R. China
| | - Guanghai Yan
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, Jilin 133002, P.R. China
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22
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SIRT3 Blocks Aging-Associated Tissue Fibrosis in Mice by Deacetylating and Activating Glycogen Synthase Kinase 3β. Mol Cell Biol 2015; 36:678-92. [PMID: 26667039 DOI: 10.1128/mcb.00586-15] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 12/03/2015] [Indexed: 12/31/2022] Open
Abstract
Tissue fibrosis is a major cause of organ dysfunction during chronic diseases and aging. A critical step in this process is transforming growth factor β1 (TGF-β1)-mediated transformation of fibroblasts into myofibroblasts, cells capable of synthesizing extracellular matrix. Here, we show that SIRT3 controls transformation of fibroblasts into myofibroblasts via suppressing the profibrotic TGF-β1 signaling. We found that Sirt3 knockout (KO) mice with age develop tissue fibrosis of multiple organs, including heart, liver, kidney, and lungs but not whole-body SIRT3-overexpressing mice. SIRT3 deficiency caused induction of TGF-β1 expression and hyperacetylation of glycogen synthase kinase 3β (GSK3β) at residue K15, which negatively regulated GSK3β activity to phosphorylate the substrates Smad3 and β-catenin. Reduced phosphorylation led to stabilization and activation of these transcription factors regulating expression of the profibrotic genes. SIRT3 deacetylated and activated GSK3β and thereby blocked TGF-β1 signaling and tissue fibrosis. These data reveal a new role of SIRT3 to negatively regulate aging-associated tissue fibrosis and discloses a novel phosphorylation-independent mechanism controlling the catalytic activity of GSK3β.
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23
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Singaravelu R, Srinivasan P, Pezacki JP. Armand-Frappier Outstanding Student Award--The emerging role of 25-hydroxycholesterol in innate immunity. Can J Microbiol 2015; 61:521-30. [PMID: 26182401 DOI: 10.1139/cjm-2015-0292] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The metabolic interplay between hosts and viruses plays a crucial role in determining the outcome of viral infection. Viruses reorchestrate the host's primary metabolic gene networks, including genes associated with mevalonate and isoprenoid synthesis, to acquire the necessary energy and structural components for their viral life cycles. Recent work has demonstrated that the interferon-mediated antiviral response suppresses the sterol pathway through production of a signalling molecule, 25-hydroxycholesterol (25HC). This oxysterol has been shown to exert multiple effects, both through incorporation into host cellular membranes as well as through transcriptional control. Herein, we summarize our current understanding of the multifunctional roles of 25HC in the mammalian innate antiviral response.
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Affiliation(s)
- Ragunath Singaravelu
- a Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada.,b Life Sciences Division, National Research Council Canada, Ottawa, ON K1A 0R6, Canada
| | - Prashanth Srinivasan
- a Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada.,b Life Sciences Division, National Research Council Canada, Ottawa, ON K1A 0R6, Canada
| | - John Paul Pezacki
- a Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada.,b Life Sciences Division, National Research Council Canada, Ottawa, ON K1A 0R6, Canada.,c Department of Chemistry, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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24
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Sun X, Chen E, Dong R, Chen W, Hu Y. Nuclear factor (NF)-κB p65 regulates differentiation of human and mouse lung fibroblasts mediated by TGF-β. Life Sci 2015; 122:8-14. [DOI: 10.1016/j.lfs.2014.11.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 11/03/2014] [Accepted: 11/21/2014] [Indexed: 12/20/2022]
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25
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Xie Y, Wang Y, Zong C, Cheng J. Transforming growth factor-Beta inhibits heme oxygenase-1 expression in lung fibroblast through nuclear factor-kappa-B-dependent pathway. Pharmacology 2014; 93:185-92. [PMID: 24854244 DOI: 10.1159/000360638] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 02/14/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND Heme oxygenase-1 (HO-1) contributes to the pathogenesis of pulmonary fibrosis. However, the expression of HO-1 in fibroblasts under fibrotic conditions has not been studied. METHODS This study was conducted to investigate the expression of HO-1 in lung fibroblasts from mice and humans under fibrotic conditions by Western blot. RESULTS We found that the expression of HO-1 was significantly decreased in lung fibroblasts isolated from bleomycin-challenged mice in comparison with control mice. Transforming growth factor-β (TGF-β) inhibited HO-1 expression and induced differentiation in human lung fibroblasts. Pretreatment with nuclear factor-κB (NF-κB) activation inhibitor or knockdown of the NF-κB p65 subunit attenuated TGF-β-induced inhibition of HO-1 expression and differentiation in human lung fibroblasts. Similarly, lysophosphatidic acid (LPA) induced TGF-β expression and decreased HO-1 expression in human lung fibroblasts. Interestingly, pretreatment with neutralized anti-TGF-β antibody attenuated LPA effects in human lung fibroblasts. CONCLUSION These data suggested that TGF-β inhibited HO-1 expression in human lung fibroblasts through activation of NF-κB.
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Affiliation(s)
- Ying Xie
- Department of Anesthesiology, Huai'an Hospital Affiliated with Xuzhou Medical College and Huai'an Second People's Hospital, Huaian, China
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26
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Jonczyk MS, Simon M, Kumar S, Fernandes VE, Sylvius N, Mallon AM, Denny P, Andrew PW. Genetic factors regulating lung vasculature and immune cell functions associate with resistance to pneumococcal infection. PLoS One 2014; 9:e89831. [PMID: 24594938 PMCID: PMC3940657 DOI: 10.1371/journal.pone.0089831] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Accepted: 01/27/2014] [Indexed: 02/06/2023] Open
Abstract
Streptococcus pneumoniae is an important human pathogen responsible for high mortality and morbidity worldwide. The susceptibility to pneumococcal infections is controlled by as yet unknown genetic factors. To elucidate these factors could help to develop new medical treatments and tools to identify those most at risk. In recent years genome wide association studies (GWAS) in mice and humans have proved successful in identification of causal genes involved in many complex diseases for example diabetes, systemic lupus or cholesterol metabolism. In this study a GWAS approach was used to map genetic loci associated with susceptibility to pneumococcal infection in 26 inbred mouse strains. As a result four candidate QTLs were identified on chromosomes 7, 13, 18 and 19. Interestingly, the QTL on chromosome 7 was located within S. pneumoniae resistance QTL (Spir1) identified previously in a linkage study of BALB/cOlaHsd and CBA/CaOlaHsd F2 intercrosses. We showed that only a limited number of genes encoded within the QTLs carried phenotype-associated polymorphisms (22 genes out of several hundred located within the QTLs). These candidate genes are known to regulate TGFβ signalling, smooth muscle and immune cells functions. Interestingly, our pulmonary histopathology and gene expression data demonstrated, lung vasculature plays an important role in resistance to pneumococcal infection. Therefore we concluded that the cumulative effect of these candidate genes on vasculature and immune cells functions as contributory factors in the observed differences in susceptibility to pneumococcal infection. We also propose that TGFβ-mediated regulation of fibroblast differentiation plays an important role in development of invasive pneumococcal disease. Gene expression data submitted to the NCBI Gene Expression Omnibus Accession No: GSE49533 SNP data submitted to NCBI dbSNP Short Genetic Variation http://www.ncbi.nlm.nih.gov/projects/SNP/snp_viewTable.cgi?handle=MUSPNEUMONIA.
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Affiliation(s)
- Magda S. Jonczyk
- Department of Infection Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Michelle Simon
- MRC Harwell, Mammalian Genetics Unit, Oxford, United Kingdom
| | - Saumya Kumar
- MRC Harwell, Mammalian Genetics Unit, Oxford, United Kingdom
| | - Vitor E. Fernandes
- Department of Infection Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Nicolas Sylvius
- Department of Genetics, University of Leicester, Leicester, United Kingdom
| | | | - Paul Denny
- MRC Harwell, Mammalian Genetics Unit, Oxford, United Kingdom
| | - Peter W. Andrew
- Department of Infection Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
- * E-mail:
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27
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Yeganeh B, Wiechec E, Ande SR, Sharma P, Moghadam AR, Post M, Freed DH, Hashemi M, Shojaei S, Zeki AA, Ghavami S. Targeting the mevalonate cascade as a new therapeutic approach in heart disease, cancer and pulmonary disease. Pharmacol Ther 2014; 143:87-110. [PMID: 24582968 DOI: 10.1016/j.pharmthera.2014.02.007] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 02/04/2014] [Indexed: 12/21/2022]
Abstract
The cholesterol biosynthesis pathway, also known as the mevalonate (MVA) pathway, is an essential cellular pathway that is involved in diverse cell functions. The enzyme 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase (HMGCR) is the rate-limiting step in cholesterol biosynthesis and catalyzes the conversion of HMG-CoA to MVA. Given its role in cholesterol and isoprenoid biosynthesis, the regulation of HMGCR has been intensely investigated. Because all cells require a steady supply of MVA, both the sterol (i.e. cholesterol) and non-sterol (i.e. isoprenoid) products of MVA metabolism exert coordinated feedback regulation on HMGCR through different mechanisms. The proper functioning of HMGCR as the proximal enzyme in the MVA pathway is essential under both normal physiologic conditions and in many diseases given its role in cell cycle pathways and cell proliferation, cholesterol biosynthesis and metabolism, cell cytoskeletal dynamics and stability, cell membrane structure and fluidity, mitochondrial function, proliferation, and cell fate. The blockbuster statin drugs ('statins') directly bind to and inhibit HMGCR, and their use for the past thirty years has revolutionized the treatment of hypercholesterolemia and cardiovascular diseases, in particular coronary heart disease. Initially thought to exert their effects through cholesterol reduction, recent evidence indicates that statins also have pleiotropic immunomodulatory properties independent of cholesterol lowering. In this review we will focus on the therapeutic applications and mechanisms involved in the MVA cascade including Rho GTPase and Rho kinase (ROCK) signaling, statin inhibition of HMGCR, geranylgeranyltransferase (GGTase) inhibition, and farnesyltransferase (FTase) inhibition in cardiovascular disease, pulmonary diseases (e.g. asthma and chronic obstructive pulmonary disease (COPD)), and cancer.
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Affiliation(s)
- Behzad Yeganeh
- Hospital for Sick Children Research Institute, Department of Physiology & Experimental Medicine, University of Toronto, Toronto, Canada
| | - Emilia Wiechec
- Dept. Clinical & Experimental Medicine, Division of Cell Biology & Integrative Regenerative Med. Center (IGEN), Linköping University, Sweden
| | - Sudharsana R Ande
- Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Pawan Sharma
- Department of Physiology & Pharmacology, Snyder Institute for Chronic Diseases, Faculty of Medicine, University of Calgary, 4C46 HRIC, 3280 Hospital Drive NW, Calgary, Alberta, Canada
| | - Adel Rezaei Moghadam
- Scientific Association of Veterinary Medicine, Faculty of Veterinary Medicine, Tabriz Branch, Islamic Azad University, Tabriz, Iran; Young Researchers and Elite Club, Ardabil Branch, Islamic Azad University, Ardabil, Iran
| | - Martin Post
- Hospital for Sick Children Research Institute, Department of Physiology & Experimental Medicine, University of Toronto, Toronto, Canada
| | - Darren H Freed
- Department of Physiology, St. Boniface Research Centre, University of Manitoba, Winnipeg, Canada
| | - Mohammad Hashemi
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Shahla Shojaei
- Department of Biochemistry, Recombinant Protein Laboratory, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir A Zeki
- U.C. Davis, School of Medicine, U.C. Davis Medical Center, Department of Internal Medicine, Division of Pulmonary, Critical Care, and Sleep Medicine, Center for Comparative Respiratory Biology & Medicine, Davis, CA, USA.
| | - Saeid Ghavami
- Department of Human Anatomy and Cell Science, St. Boniface Research Centre, Manitoba Institute of Child Health, Biology of Breathing Theme, University of Manitoba, Winnipeg, Canada.
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