1
|
Zhou S, Zhang Q, Yang H, Zhu Y, Hu X, Wan G, Yu L. Targeting type I PRMTs as promising targets for the treatment of pulmonary disorders: Asthma, COPD, lung cancer, PF, and PH. Life Sci 2024; 342:122538. [PMID: 38428571 DOI: 10.1016/j.lfs.2024.122538] [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: 10/15/2023] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/03/2024]
Abstract
Pulmonary disorders, including asthma, chronic obstructive pulmonary disease (COPD), pulmonary fibrosis (PF), pulmonary hypertension (PH), and lung cancer, seriously impair the quality of lives of patients. A deeper understanding of the occurrence and development of the above diseases may inspire new strategies to remedy the scarcity of treatments. Type I protein arginine methyltransferases (PRMTs) can affect processes of inflammation, airway remodeling, fibroblast proliferation, mitochondrial mass, and epithelial dysfunction through substrate methylation and non-enzymatic activity, thus affecting the occurrence and development of asthma, COPD, lung cancer, PF, and PH. As potential therapeutic targets, inhibitors of type I PRMTs are developed, moreover, representative compounds such as GSK3368715 and MS023 have also been used for early research. Here, we collated structures of type I PRMTs inhibitors and compared their activity. Finally, we highlighted the physiological and pathological associations of type I PRMTs with asthma, COPD, lung cancer, PF, and PH. The developing of type I PRMTs modulators will be beneficial for the treatment of these diseases.
Collapse
Affiliation(s)
- Shuyan Zhou
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiangsheng Zhang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Honglin Yang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yongxia Zhu
- Department of Pharmacy, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiang Hu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Guoquan Wan
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Luoting Yu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| |
Collapse
|
2
|
Gautam Y, Caldwell J, Kottyan L, Chehade M, Dellon ES, Rothenberg ME, Mersha TB. Genome-wide admixture and association analysis identifies African ancestry-specific risk loci of eosinophilic esophagitis in African Americans. J Allergy Clin Immunol 2023; 151:1337-1350. [PMID: 36400179 PMCID: PMC10164699 DOI: 10.1016/j.jaci.2022.09.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 09/17/2022] [Accepted: 09/28/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Eosinophilic esophagitis (EoE), a chronic allergic inflammatory disease, is linked to multiple genetic risk factors, but studies have focused on populations of European ancestry. Few studies have assessed Black or African American (AA) populations for loci involved in EoE susceptibility. OBJECTIVE We performed admixture mapping (AM) and genome-wide association study (GWAS) of EoE using participants from AA populations. METHODS We conducted AM and GWAS of EoE using 137 EoE cases and 1465 healthy controls from the AA population. Samples were genotyped using molecular evolutionary genetics analysis (MEGA). Genotype imputation was carried out with the Consortium on Asthma Among African-Ancestry Populations in the Americas (CAAPA) reference panel using the Michigan Imputation Server. Global and local ancestry inference was carried out, followed by fine mapping and RNA sequencing. After quality control filtering, over 6,000,000 variants were tested by logistic regression adjusted for sex, age, and global ancestry. RESULTS The global African ancestry proportion was found to be significantly lower among cases than controls (0.751 vs 0.786, P = .012). Case-only AM identified 3 significant loci (9p13.3, 12q24.22-23, and 15q11.2) associated with EoE, of which 12q24.22-23 and 9p13.3 were further replicated in the case-control analysis, with associations observed with African ancestry. Fine mapping and multiomic functional annotations prioritized the variants rs11068264 (FBXW8) and rs7307331 (VSIG10) at 12q24.23 and rs2297879 (ARHGEF39) at 9p13.3. GWAS identified 1 genome-wide significant locus at chromosome 1p22.3 (rs17131726, DDAH1) and 10 other suggestive loci. Most GWAS variants were low-frequency African ancestry-specific variants. RNA sequencing revealed that esophageal DDAH1 and VSIG10 were downregulated and ARHGEF39 upregulated among EoE cases. CONCLUSIONS GWAS and AM for EoE in AA revealed that African ancestry-specific genetic susceptibility loci exist at 1p22.3, 9p13.3, and 12q24.23, providing evidence of ancestry-specific inheritance of EoE. More independent genetic studies of different ancestries for EoE are needed.
Collapse
Affiliation(s)
- Yadu Gautam
- Division of Asthma Research, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
| | - Julie Caldwell
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
| | - Leah Kottyan
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
| | - Mirna Chehade
- Mount Sinai Center for Eosinophilic Disorders, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Evan S Dellon
- Center for Esophageal Diseases and Swallowing, Division of Gastroenterology and Hepatology, University of North Carolina School of Medicine, Chapel Hill, NC
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
| | - Tesfaye B Mersha
- Division of Asthma Research, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio.
| |
Collapse
|
3
|
Tu X, Gomez HM, Kim RY, Brown AC, de Jong E, Galvao I, Faiz A, Bosco A, Horvat JC, Hansbro P, Donovan C. Airway and parenchyma transcriptomics in a house dust mite model of experimental asthma. Respir Res 2023; 24:32. [PMID: 36698141 PMCID: PMC9878882 DOI: 10.1186/s12931-022-02298-x] [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: 07/18/2022] [Accepted: 12/15/2022] [Indexed: 01/26/2023] Open
Abstract
Lung transcriptomics studies in asthma have provided valuable information in the whole lung context, however, deciphering the individual contributions of the airway and parenchyma in disease pathogenesis may expedite the development of novel targeted treatment strategies. In this study, we performed transcriptomics on the airway and parenchyma using a house dust mite (HDM)-induced model of experimental asthma that replicates key features of the human disease. HDM exposure increased the expression of 3,255 genes, of which 212 were uniquely increased in the airways, 856 uniquely increased in the parenchyma, and 2187 commonly increased in both compartments. Further interrogation of these genes using a combination of network and transcription factor enrichment analyses identified several transcription factors that regulate airway and/or parenchymal gene expression, including transcription factor EC (TFEC), transcription factor PU.1 (SPI1), H2.0-like homeobox (HLX), metal response element binding transcription factor-1 (MTF1) and E74-like factor 4 (ets domain transcription factor, ELF4) involved in controlling innate immune responses. We next assessed the effects of inhibiting lung SPI1 responses using commercially available DB1976 and DB2313 on key disease outcomes. We found that both compounds had no protective effects on airway inflammation, however DB2313 (8 mg/kg) decreased mucus secreting cell number, and both DB2313 (1 mg/kg) and DB1976 (2.5 mg/kg and 1 mg/kg) reduced small airway collagen deposition. Significantly, both compounds decreased airway hyperresponsiveness. This study demonstrates that SPI1 is important in HDM-induced experimental asthma and that its pharmacological inhibition reduces HDM-induced airway collagen deposition and hyperresponsiveness.
Collapse
Affiliation(s)
- Xiaofan Tu
- grid.266842.c0000 0000 8831 109XPriority Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW Australia
| | - Henry M. Gomez
- grid.266842.c0000 0000 8831 109XPriority Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW Australia
| | - Richard Y. Kim
- grid.266842.c0000 0000 8831 109XPriority Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW Australia ,grid.117476.20000 0004 1936 7611Faculty of Science, School of Life Sciences, University of Technology Sydney, Sydney, NSW Australia
| | - Alexandra C. Brown
- grid.266842.c0000 0000 8831 109XPriority Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW Australia
| | - Emma de Jong
- Centre for Health Research, Telethon Kids Institute, The University of Western Australia, Nedlands, WA Australia
| | - Izabela Galvao
- grid.117476.20000 0004 1936 7611Centre for Inflammation, Faculty of Science, School of Life Sciences, Centenary Institute and University of Technology Sydney, Sydney, NSW Australia
| | - Alen Faiz
- grid.117476.20000 0004 1936 7611Faculty of Science, School of Life Sciences, University of Technology Sydney, Sydney, NSW Australia
| | - Anthony Bosco
- grid.134563.60000 0001 2168 186XAsthma and Airway Disease Research Center, University of Arizona, Arizona, USA
| | - Jay C. Horvat
- grid.266842.c0000 0000 8831 109XPriority Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW Australia
| | - Philip Hansbro
- grid.266842.c0000 0000 8831 109XPriority Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW Australia ,grid.117476.20000 0004 1936 7611Centre for Inflammation, Faculty of Science, School of Life Sciences, Centenary Institute and University of Technology Sydney, Sydney, NSW Australia
| | - Chantal Donovan
- grid.266842.c0000 0000 8831 109XPriority Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, Newcastle, NSW Australia ,grid.117476.20000 0004 1936 7611Faculty of Science, School of Life Sciences, University of Technology Sydney, Sydney, NSW Australia
| |
Collapse
|
4
|
Gao J, Lei T, Wang H, Luo K, Wang Y, Cui B, Yu Z, Hu X, Zhang F, Chen Y, Ding W, Lu Z. Dimethylarginine dimethylaminohydrolase 1 protects PM 2.5 exposure-induced lung injury in mice by repressing inflammation and oxidative stress. Part Fibre Toxicol 2022; 19:64. [PMID: 36242005 PMCID: PMC9569114 DOI: 10.1186/s12989-022-00505-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Airborne fine particulate matter with aerodynamic diameter ≤ 2.5 μm (PM2.5) pollution is associated with the prevalence of respiratory diseases, including asthma, bronchitis and chronic obstructive pulmonary disease. In patients with those diseases, circulating asymmetric dimethylarginine (ADMA) levels are increased, which contributes to airway nitric oxide deficiency, oxidative stress and inflammation. Overexpression of dimethylarginine dimethylaminohydrolase 1 (DDAH1), an enzyme degrading ADMA, exerts protective effects in animal models. However, the impact of DDAH1/ADMA on PM2.5-induced lung injury has not been investigated. METHODS Ddah1-/- and DDAH1-transgenic mice, as well as their respective wild-type (WT) littermates, were exposed to either filtered air or airborne PM2.5 (mean daily concentration ~ 50 µg/m3) for 6 months through a whole-body exposure system. Mice were also acutely exposed to 10 mg/kg PM2.5 and/or exogenous ADMA (2 mg/kg) via intratracheal instillation every other day for 2 weeks. Inflammatory response, oxidative stress and related gene expressions in the lungs were examined. In addition, RAW264.7 cells were exposed to PM2.5 and/or ADMA and the changes in intracellular oxidative stress and inflammatory response were determined. RESULTS Ddah1-/- mice developed more severe lung injury than WT mice after long-term PM2.5 exposure, which was associated with greater induction of pulmonary oxidative stress and inflammation. In the lungs of PM2.5-exposed mice, Ddah1 deficiency increased protein expression of p-p65, iNOS and Bax, and decreased protein expression of Bcl-2, SOD1 and peroxiredoxin 4. Conversely, DDAH1 overexpression significantly alleviated lung injury, attenuated pulmonary oxidative stress and inflammation, and exerted opposite effects on those proteins in PM2.5-exposed mice. In addition, exogenous ADMA administration could mimic the effect of Ddah1 deficiency on PM2.5-induced lung injury, oxidative stress and inflammation. In PM2.5-exposed macrophages, ADMA aggravated the inflammatory response and oxidative stress in an iNOS-dependent manner. CONCLUSION Our data revealed that DDAH1 has a marked protective effect on long-term PM2.5 exposure-induced lung injury.
Collapse
Affiliation(s)
- Junling Gao
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Tong Lei
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Hongyun Wang
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Kai Luo
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Yuanli Wang
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Bingqing Cui
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Zhuoran Yu
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Xiaoqi Hu
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Fang Zhang
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Yingjie Chen
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Wenjun Ding
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China.
| | - Zhongbing Lu
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China.
| |
Collapse
|
5
|
DDAH1 Promotes Lung Endothelial Barrier Repair by Decreasing Leukocyte Transendothelial Migration and Oxidative Stress in Explosion-Induced Lung Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8407635. [PMID: 35620579 PMCID: PMC9130000 DOI: 10.1155/2022/8407635] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 05/02/2022] [Indexed: 11/17/2022]
Abstract
Explosion-induced injury is the most commonly encountered wound in modern warfare and incidents. The vascular inflammatory response and subsequent oxidative stress are considered the key causes of morbidity and mortality among those in blast lung injury. It has been reported dimethylarginine dimethylaminohydrolase 1 (DDAH1) plays important roles in regulating vascular endothelial injury repair and angiogenesis, but its role in explosion-induced injury remains to be explained. To explore the mechanism of vascular injury in blast lung, 40 C57BL/6 wild type mice and 40 DDAH1 knockout mice were randomly equally divided into control group and blast group, respectively. Body weight, lung weight, and dry weight of the lungs were recorded. Diffuse vascular leakage was detected by Evans blue test. The serum inflammatory factors, nitric oxide (NO) contents, and ADMA level were determined through ELISA. Hematoxylin-eosin staining and ROS detection were performed for histopathological changes. Western blot was used to detect the proteins related to oxidative stress, cell adhesion molecules and leukocyte transendothelial migration, vascular injury, endothelial barrier dysfunction, and the DDAH1/ADMA/eNOS signaling pathway. We found that DDAH1 deficiency aggravated explosion-induced body weight reduction, lung weight promotion, diffuse vascular leakage histopathological changes, and the increased levels of inflammatory-related factors. Additionally, DDAH1 deficiency also increased ROS generation, MDA, and IRE-1α expression. Regarding vascular endothelial barrier dysfunction, DDAH1 deficiency increased the expression of ICAM-1, Itgal, Rac2, VEGF, MMP9, vimentin, and N-cadherin, while lowering the expression of occludin, CD31, and dystrophin. DDAH1 deficiency also exacerbated explosion-induced increase of ADMA and decrease of eNOS activity and NO contents. Our results indicated that explosion could induce severe lung injury and pulmonary vascular insufficiency, whereas DDAH1 could promote lung endothelial barrier repair and reduce inflammation and oxidative stress by inhibiting ADMA signaling which in turn increased eNOS activity.
Collapse
|
6
|
Kumari A, Pal S, G BR, Mohny FP, Gupta N, Miglani C, Pattnaik B, Pal A, Ganguli M. Surface-Engineered Mucus Penetrating Nucleic Acid Delivery Systems with Cell Penetrating Peptides for the Lungs. Mol Pharm 2022; 19:1309-1324. [PMID: 35333535 DOI: 10.1021/acs.molpharmaceut.1c00770] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nucleic acids, both DNA and small RNAs, have emerged as potential therapeutics for the treatment of various lung disorders. However, delivery of nucleic acids to the lungs is challenging due to the barrier property imposed by mucus, which is further reinforced in disease conditions such as chronic obstructive pulmonary disease and asthma. The presence of negatively charged mucins imparts the electrostatic barrier property, and the mesh network structure of mucus provides steric hindrance to the delivery system. To overcome this, the delivery system either needs to be muco-inert with a low positive charge such that the interactions with mucus are minimized or should have the ability to transiently dismantle the mucus structure for effective penetration. We have developed a mucus penetrating system for the delivery of both small RNA and plasmid DNA independently. The nucleic acid core consists of a nucleic acid (pDNA/siRNA) and a cationic/amphipathic cell penetrating peptide. The mucus penetrating coating consists of the hydrophilic biopolymer chondroitin sulfate A (CS-A) conjugated with a mucolytic agent, mannitol. We hypothesize that the hydrophilic coating of CS-A would reduce the surface charge and decrease the interaction with negatively charged mucins, while the conjugated mannitol residues would disrupt the mucin-mucin interaction or decrease the viscosity of mucus by increasing the influx of water into the mucus. Our results indicate that CS-A-mannitol-coated nanocomplexes possess reduced surface charge, reduced viscosity of artificial mucus, and increased diffusion in mucin suspension as well as increased penetration through the artificial mucus layer as compared to the non-coated ones. Further, the coated nanocomplexes showed low cytotoxicity as well as higher transfection in A-549 and BEAS-2B cells as compared to the non-coated ones.
Collapse
Affiliation(s)
- Anupama Kumari
- CSIR─Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Simanti Pal
- CSIR─Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Betsy Reshma G
- CSIR─Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Franklin Pulikkottil Mohny
- CSIR─Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Nidhi Gupta
- Chemical Biology Unit, Institute of Nanoscience and Technology, Sector 81, Mohali, Punjab 140306, India
| | - Chirag Miglani
- Chemical Biology Unit, Institute of Nanoscience and Technology, Sector 81, Mohali, Punjab 140306, India
| | - Bijay Pattnaik
- CSIR─Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Department of Pulmonary, Critical Care & Sleep Medicine, All Indian Institute of Medical Science (AIIMS), New Delhi 110029, India
| | - Asish Pal
- Chemical Biology Unit, Institute of Nanoscience and Technology, Sector 81, Mohali, Punjab 140306, India
| | - Munia Ganguli
- CSIR─Institute of Genomics and Integrative Biology, Mathura Road, New Delhi 110025, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| |
Collapse
|
7
|
Liu Y, Huang Q, Du J, Huang C, Li D, Dai X, Liang R, Li B, Shi G. Comparative analysis of global transcriptome, proteome and acetylome in house dust mite-induced murine allergic asthma model. Clin Transl Med 2021; 11:e590. [PMID: 34841691 PMCID: PMC8571946 DOI: 10.1002/ctm2.590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 09/11/2021] [Accepted: 09/17/2021] [Indexed: 11/07/2022] Open
Affiliation(s)
- Yahui Liu
- Department of Respiratory and Critical Care MedicineRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Qianru Huang
- Department of Immunology and MicrobiologyShanghai Institute of ImmunologyShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Juan Du
- Department of Respiratory and Critical Care MedicineRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Chunrong Huang
- Department of Respiratory and Critical Care MedicineRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Dan Li
- Department of Immunology and MicrobiologyShanghai Institute of ImmunologyShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Xueyu Dai
- Department of Immunology and MicrobiologyShanghai Institute of ImmunologyShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Rui Liang
- Department of Immunology and MicrobiologyShanghai Institute of ImmunologyShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Bin Li
- Department of Immunology and MicrobiologyShanghai Institute of ImmunologyShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Guochao Shi
- Department of Respiratory and Critical Care MedicineRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| |
Collapse
|
8
|
Karaguzel D, Sarac BE, Akel Bilgic H, Summak GY, Unal MA, Kalayci O, Karaaslan C. House dust mite-derived allergens effect on matrix metalloproteases in airway epithelial cells. Exp Lung Res 2021; 47:436-450. [PMID: 34739337 DOI: 10.1080/01902148.2021.1998734] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Aim of the Study: Many allergens have protease activities. Although the immunomodulatory effects of these antigens are well known, the effects attributed to their protease activities are not thoroughly investigated. We set out to determine the effects of house dust mite (HDM) allergens with varying protease activities on bronchial epithelial cell functions. Materials and methods: BEAS-2B cells were maintained in ALI-culture and stimulated with Der p1 (cysteine protease), Der p6 (serine protease), and Der p2 (non-protease) with and without specific protease inhibitors or heat denaturation. Cell viability and epithelial permeability were measured with MTT and paracellular flux assay, respectively. The effect of heat denaturation on allergen structure was examined using in silico models. Matrix metalloproteinases (MMPs) were investigated at the transcription (qPCR), protein (ELISA), and functional (zymography) levels. Results: Epithelial permeability increased only after Der p6 but not after Der p1 or Der p2 stimulation. Der p2 increased both MMP-2 and MMP-9 expression, while Der p1 increased only MMP-9 expression. The heat-denatured form of Der p1 unexpectedly increased MMP-9 gene expression, which, through the use of in silico models, was attributed to its ability to change receptor connections by the formation of new electrostatic and hydrogen bonds. IL-8 and GM-CSF production were increased after Der p1 and Der p2 but decreased after Der p6 stimulation. IL-6 decreased after Der p1 but increased following stimulation with Der p6 and heat-denatured Der p2. Conclusion: Allergens in house dust mites are capable of inducing various changes in the epithelial cell functions by virtue of their protease activities.
Collapse
Affiliation(s)
- Dilara Karaguzel
- Department of Biology, Molecular Biology Section, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - Basak Ezgi Sarac
- Department of Biology, Molecular Biology Section, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - Hayriye Akel Bilgic
- Department of Biology, Molecular Biology Section, Faculty of Science, Hacettepe University, Ankara, Turkey
| | - Gokce Yagmur Summak
- Department of Physics Engineering, Faculty of Engineering, Ankara University, Ankara, Turkey
| | - Mehmet Altay Unal
- Department of Physics Engineering, Faculty of Engineering, Ankara University, Ankara, Turkey
| | - Omer Kalayci
- Pediatric Allergy and Asthma Unit, Hacettepe University School of Medicine, Ankara, Turkey
| | - Cagatay Karaaslan
- Department of Biology, Molecular Biology Section, Faculty of Science, Hacettepe University, Ankara, Turkey
| |
Collapse
|
9
|
Zou Y, Zhou Q, Zhang Y. MicroRNA-21 released from mast cells-derived extracellular vesicles drives asthma in mice by potentiating airway inflammation and oxidative stress. Am J Transl Res 2021; 13:7475-7491. [PMID: 34377230 PMCID: PMC8340267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/29/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE Mast cells-derived extracellular vesicles (EVs) play vital roles in various physiological and pathophysiological conditions. However, the cargoes of mast cells-derived EVs in asthma have not been established. Here, we set to identify the role of microRNA-21 (miRNA-21) from mast cells-derived EVs in ozone- and lipopolysaccharide (LPS)-induced mouse airway epithelial cells (MIC-iCell-a006 cells) and asthmatic mice. METHODS After ozone or LPS treatment, MIC-iCell-a006 cells were subjected to a microarray analysis to screen differentially expressed miRNAs, and then co-cultured with EVs. miR-21 was silenced in cells, followed by CCK-8, scratch, and Transwell assays. Mice were challenged with ovalbumin, and antioxidant enzymes and inflammatory cell infiltration were assessed after EVs and miR-21 inhibitor treatments. The relation between miR-21 and DDAH1 was evaluated by Dual-luciferase assay, and changes in Wnt/β-catenin pathway related proteins were examined by western blot. Finally, the involvement of the DDAH1/Wnt/β-catenin axis in miR-21-mediated oxidative stress and inflammation was verified by rescue experiments. RESULTS miR-21 expression was upregulated in MIC-iCell-a006 cells induced by ozone or LPS. miR-21 was enriched in mast cells-derived EVs, and EVs increased miR-21 expression in MIC-iCell-a006 cells. miR-21 inhibitor increased cell activity and alleviated oxidative stress and inflammation. In asthmatic mice, miR-21 expression was increased, and EVs decreased antioxidant enzymes and increased inflammatory cells, whose effects were reversed by miR-21 knockdown. miR-21 targeted DDAH1 to mediate the Wnt/β-catenin signaling, and down-regulation of DDAH1 inhibited the action of miR-21 inhibitor. CONCLUSION The miR-21 secreted from mast cells-derived EVs promotes oxidative stress and inflammatory responses in asthmatic mice via the DDAH1/Wnt/β-catenin signaling axis.
Collapse
Affiliation(s)
- Ying Zou
- Department of Respiratory and Critical Medicine, Shanghai Putuo District Liqun Hospital Shanghai 200333, P. R. China
| | - Qixing Zhou
- Department of Respiratory and Critical Medicine, Shanghai Putuo District Liqun Hospital Shanghai 200333, P. R. China
| | - Yunfeng Zhang
- Department of Respiratory and Critical Medicine, Shanghai Putuo District Liqun Hospital Shanghai 200333, P. R. China
| |
Collapse
|
10
|
McCarty MF, DiNicolantonio JJ, Lerner A. Review - Nutraceuticals Can Target Asthmatic Bronchoconstriction: NADPH Oxidase-Dependent Oxidative Stress, RhoA and Calcium Dynamics. J Asthma Allergy 2021; 14:685-701. [PMID: 34163181 PMCID: PMC8214517 DOI: 10.2147/jaa.s307549] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/21/2021] [Indexed: 12/17/2022] Open
Abstract
Activation of various isoforms of NADPH oxidase contributes to the pathogenesis of asthma at multiple levels: promoting hypercontractility, hypertrophy, and proliferation of airway smooth muscle; enabling lung influx of eosinophils via VCAM-1; and mediating allergen-induced mast cell activation. Free bilirubin, which functions physiologically within cells as a feedback inhibitor of NADPH oxidase complexes, has been shown to have a favorable impact on each of these phases of asthma pathogenesis. The spirulina chromophore phycocyanobilin (PhyCB), a homolog of bilirubin’s precursor biliverdin, can mimic the inhibitory impact of biliverdin/bilirubin on NADPH oxidase activity, and spirulina’s versatile and profound anti-inflammatory activity in rodent studies suggests that PhyCB may have potential as a clinical inhibitor of NADPH oxidase. Hence, spirulina or PhyCB-enriched spirulina extracts merit clinical evaluation in asthma. Promoting biosynthesis of glutathione and increasing the expression and activity of various antioxidant enzymes – as by supplementing with N-acetylcysteine, Phase 2 inducers (eg, lipoic acid), selenium, and zinc – may also blunt the contribution of oxidative stress to asthma pathogenesis. Nitric oxide (NO) and hydrogen sulfide (H2S) work in various ways to oppose pathogenic mechanisms in asthma; supplemental citrulline and high-dose folate may aid NO synthesis, high-dose biotin may mimic and possibly potentiate NO’s activating impact on soluble guanylate cyclase, and NAC and taurine may boost H2S synthesis. The amino acid glycine has a hyperpolarizing effect on airway smooth muscle that is bronchodilatory. Insuring optimal intracellular levels of magnesium may modestly blunt the stimulatory impact of intracellular free calcium on bronchoconstriction. Nutraceutical regimens or functional foods incorporating at least several of these agents may have utility as nutraceutical adjuvants to standard clinical management of asthma.
Collapse
Affiliation(s)
| | - James J DiNicolantonio
- Department of Preventive Cardiology, Saint Luke's Mid America Heart Institute, Kansas, MO, USA
| | - Aaron Lerner
- Chaim Sheba Medical Center, The Zabludowicz Research Center for Autoimmune Diseases, Tel Hashomer, 5262000, Israel
| |
Collapse
|
11
|
Simon SCS, Hu X, Panten J, Grees M, Renders S, Thomas D, Weber R, Schulze TJ, Utikal J, Umansky V. Eosinophil accumulation predicts response to melanoma treatment with immune checkpoint inhibitors. Oncoimmunology 2020; 9:1727116. [PMID: 32117594 PMCID: PMC7028332 DOI: 10.1080/2162402x.2020.1727116] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 12/04/2019] [Accepted: 12/06/2019] [Indexed: 01/03/2023] Open
Abstract
Eosinophils have been identified as a prognostic marker in immunotherapy of melanoma and suggested to contribute to anti-tumor host defense. However, the influence of immune checkpoint inhibitors (ICI) on the eosinophil population is poorly studied. Here, we applied routine laboratory tests, multicolor flow cytometry, RNA microarray analysis, and bio-plex assay to analyze circulating eosinophils and related serum inflammatory factors in 32 patients treated with pembrolizumab or the combination of nivolumab and ipilimumab. We demonstrated that clinical responses to ICI treatment were associated with an eosinophil accumulation in the peripheral blood. Moreover, immunotherapy led to the alteration of the eosinophil genetic and activation profile. Elevated serum concentrations of IL-16 during ICI treatment were found to be associated with increased frequencies of eosinophils in the peripheral blood. Using immunohistochemistry, we observed an enhanced eosinophil degranulation and a positive correlation between eosinophil and CD8+ T cell infiltration of tumor tissues from melanoma patients treated with ICI. Our findings highlight additional mechanisms of ICI effects and suggest the level of eosinophils as a novel predictive marker for melanoma patients who may benefit from this immunotherapy.
Collapse
Affiliation(s)
- Sonja C S Simon
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Xiaoying Hu
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Jasper Panten
- Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Research Group Hematopoietic and Leukemic Stem Cells, Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany
| | - Mareike Grees
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Simon Renders
- Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Research Group Hematopoietic and Leukemic Stem Cells, Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany
| | - Daniel Thomas
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Rebekka Weber
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany.,Faculty of Biosciences, Ruprecht-Karl University of Heidelberg, Heidelberg, Germany
| | - Torsten J Schulze
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.,Department of Diagnostics, Institute Springe, Springe, Germany
| | - Jochen Utikal
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Viktor Umansky
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| |
Collapse
|
12
|
de Groot LES, van de Pol MA, Fens N, Dierdorp BS, Dekker T, Kulik W, Majoor CJ, Hamann J, Sterk PJ, Lutter R. Corticosteroid Withdrawal-Induced Loss of Control in Mild to Moderate Asthma Is Independent of Classic Granulocyte Activation. Chest 2019; 157:16-25. [PMID: 31622588 DOI: 10.1016/j.chest.2019.09.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/03/2019] [Accepted: 09/23/2019] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Loss of asthma control and asthma exacerbations are associated with increased sputum eosinophil counts. However, whether eosinophils, or the also present neutrophils, actively contribute to the accompanying inflammation has not been extensively investigated. METHODS Twenty-three patients with mild to moderate asthma were included in a standardized prospective inhaled corticosteroid (ICS) withdrawal study; 22 of the patients experienced loss of asthma control. The study assessed various immune, inflammatory, and oxidative stress parameters, as well as markers of eosinophil and neutrophil activity, in exhaled breath condensate, plasma, and sputum collected at three phases (baseline, during loss of control, and following recovery). RESULTS Loss of asthma control was characterized by increased sputum eosinophils, whereas no differences were detected between the three phases for most inflammatory and oxidative stress responses. There were also no differences detected for markers of activated eosinophils (eosinophil cationic protein and bromotyrosine) and neutrophils (myeloperoxidase and chlorotyrosine). However, free eosinophilic granules and citrullinated histone H3, suggestive of eosinophil cytolysis and potentially eosinophil extracellular trap formation, were enhanced. Baseline blood eosinophils and changes in asymmetric dimethylarginine (an inhibitor of nitric oxide synthase) in plasma were found to correlate with the decrease in FEV1 percent predicted upon ICS withdrawal (both, rs = 0.46; P = .03). CONCLUSIONS The clinical effect in mild to moderate asthma upon interruption of ICS therapy is not related to the classic inflammatory activation of eosinophils and neutrophils. It may, however, reflect another pathway underlying the onset of loss of disease control and asthma exacerbations. TRIAL REGISTRY The Netherlands Trial Register; No.: NTR3316; URL: trialregister.nl/trial/3172.
Collapse
Affiliation(s)
- Linsey E S de Groot
- Department of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; Department of Experimental Immunology (Amsterdam Infection & Immunity Institute), Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.
| | - Marianne A van de Pol
- Department of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Niki Fens
- Department of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Barbara S Dierdorp
- Department of Experimental Immunology (Amsterdam Infection & Immunity Institute), Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Tamara Dekker
- Department of Experimental Immunology (Amsterdam Infection & Immunity Institute), Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Wim Kulik
- Laboratory Genetic Metabolic Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Christof J Majoor
- Department of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Jörg Hamann
- Department of Experimental Immunology (Amsterdam Infection & Immunity Institute), Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Peter J Sterk
- Department of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - René Lutter
- Department of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; Department of Experimental Immunology (Amsterdam Infection & Immunity Institute), Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| |
Collapse
|
13
|
Ramachandran S, Loganathan S, Cheeran V, Charles S, Munuswamy-Ramanujan G, Ramasamy M, Raj V, Mala K. Forskolin attenuates doxorubicin-induced accumulation of asymmetric dimethylarginine and s-adenosylhomocysteine via methyltransferase activity in leukemic monocytes. Leuk Res Rep 2018; 9:28-35. [PMID: 29892545 PMCID: PMC5993357 DOI: 10.1016/j.lrr.2018.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/15/2017] [Accepted: 02/09/2018] [Indexed: 10/25/2022] Open
Abstract
Doxorubicin (DOX) is an antitumor drug, associated with cardiomyopathy. Strategies to address DOX-cardiomyopathy are scarce. Here, we identify the effect of forskolin (FSK) on DOX-induced-asymmetric-dimethylarginine (ADMA) accumulation in monocytoid cells. DOX-challenge led to i) augmented cytotoxicity, reactive-oxygen-species (ROS) production and methyltransferase-enzyme-activity identified as ADMA and s-adenosylhomocysteine (SAH) accumulation (SAH-A). However, except cytotoxicity, other DOX effects were decreased by metformin and FSK. FSK, did not alter the DOX-induced cytotoxic effect, but, decreased SAH-A by >50% and a combination of three drugs restored physiological methyltransferase-enzyme-activity. Together, protective effect of FSK against DOX-induced SAH-A is associated with mitigated methyltransferase-activity, a one-of-a-kind report.
Collapse
Key Words
- ADMA, asymmetric dimethylarginine
- CT, chemotherapy
- CVD, cardiovascular disease
- Cancer
- Cardiovascular disease
- DDAH, dimethylarginine diaminohydrolase
- DOX, doxorubicin
- Endothelial dysfunction
- FSK, forskolin
- Forskolin
- HCY, homocysteine
- HTRF, homogenous time-resolved fluorescence
- L-arg, L-arginine
- L-cit, L-citrulline
- MET, metformin
- Metformin
- Methyltransferase
- NAD+, nicotinamide adenine dinucleotide
- OS, oxidative stress
- PRMT1, protein arginine methyltransferase1
- ROS, reactive oxygen species
- SAH, s-adenosylhomocysteine;
- SAH-A, SAH accumulation
- SAHH, s-adenosylhomocysteine hydrolase
- SAM, s-adenosylmethionine
- SIRT1, sirtuin1
- cAMP, cyclic AMP
- eNOS, endothelial nitric oxide synthase
Collapse
Affiliation(s)
- Sandhiya Ramachandran
- Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur 603203, India
| | - Swetha Loganathan
- Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur 603203, India
| | - Vinnie Cheeran
- Interdisciplinary Institute of Indian System of Medicine, SRM University, Kattankulathur 603203, India
| | - Soniya Charles
- Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur 603203, India.,Medical College Hospital and Research Center, SRM University, Kattankulathur 603203, India
| | | | - Mohankumar Ramasamy
- Interdisciplinary Institute of Indian System of Medicine, SRM University, Kattankulathur 603203, India
| | - Vijay Raj
- Medical College Hospital and Research Center, SRM University, Kattankulathur 603203, India
| | - Kanchana Mala
- Medical College Hospital and Research Center, SRM University, Kattankulathur 603203, India
| |
Collapse
|
14
|
Chitosan oligosaccharide ameliorates acute lung injury induced by blast injury through the DDAH1/ADMA pathway. PLoS One 2018; 13:e0192135. [PMID: 29415054 PMCID: PMC5802901 DOI: 10.1371/journal.pone.0192135] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 01/17/2018] [Indexed: 01/26/2023] Open
Abstract
Objective To investigate the protective effect of chitosan oligosaccharide (COS) on acute lung injury (ALI) caused by blast injury, and explore possible molecular mechanisms. Methods A mouse model of blast injury-induced ALI was established using a self-made explosive device. Thirty mice were randomly assigned to control, ALI and ALI + COS groups. An eight-channel physiological monitor was used to determine the mouse physiological index. Enzyme linked immunosorbent assay was used to measure serum inflammatory factors. Hematoxylin-eosin staining, terminal deoxynucleotidyl transferase dUTP nick end labeling assay, immunofluorescence staining, real time-polymerase chain reaction and western blot assay were used to detect inflammatory reactions, oxidative stress and apoptosis. Results Mice were sacrificed 24 hours after successful model induction. Compared with the ALI group, the heart rate, respiration and PCO2 were significantly lower, but the PO2, TCO2 and HCO3- were significantly higher in the ALI + COS group. Compared to ALI alone, COS treatment of ALI caused a significant decrease in the wet/dry lung weight ratio, indicating a reduction in lung edema, inflammatory cell infiltration, levels of tumor necrosis factor-α, interleukin (IL)-1β, IL-4, IL-6 and nuclear factor kappa B mRNA and protein expression were reduced and IL-10 mRNA and protein expression was increased (P < 0.05). COS significantly inhibited reactive oxygen species, MDA5 and IREα mRNA and protein expressions, cell apoptosis and Bax and Caspase-3 mRNA and protein expressions, and significantly increased superoxide dismutase-1 mRNA expression, and Bcl-2 and Caspase-8 mRNA and protein expression (all P<0.05). COS significantly increased dimethylarginine dimethylaminohydrolase 1 (DDAH1) protein expression, and reduced ADMA and p38 protein expression (P< 0.05). Conclusion Blast injury causes inflammation, oxidative stress and apoptosis in the lung tissues of mice. COS has protective effects on blast injury-induced ALI, possibly by promoting DDAH1 expression and inhibiting ADMA and mitogen-activated protein kinase pathways.
Collapse
|
15
|
Positive correlation of airway resistance and serum asymmetric dimethylarginine (ADMA) in bronchial asthma patients lacking evidence for systemic inflammation. Allergy Asthma Clin Immunol 2018; 14:2. [PMID: 29308071 PMCID: PMC5751874 DOI: 10.1186/s13223-017-0226-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 12/15/2017] [Indexed: 11/23/2022] Open
Abstract
Background Contribution of nitric-oxide (NO) pathway to the pathogenesis of bronchial asthma (asthma) is ambiguous as NO may confer both protective and detrimental effects depending on the NO synthase (NOS) isoforms, tissue compartments and underlying pathological conditions (e.g. systemic inflammation). Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor and uncoupler of NOS with distinct selectivity for NOS isoforms. In a cross-sectional study, we assessed whether ADMA is an independent predictor of airway resistance (Raw) in therapy-controlled asthma. Methods 154 therapy-controlled asthma patients were recruited. ADMA, symmetric dimethylarginine and arginine were quantitated by HPLC with fluorescent detection. Pulmonary function test was done using whole-body plethysmography, quality of life via St. George’s Respiratory questionnaire (SGRQ). Multiple linear regression was used to identify independent determinants of Raw. The final model was stratified based on therapy control. Results Evidence for systemic inflammation indicated by CRP and procalcitonin was lacking in our sample. Log Raw showed significant positive correlation with log ADMA in the whole data set and well-controlled but not in the not well-controlled stratum (Spearman correlation coefficients: 0.27, p < 0.001; 0.30, p < 0.001; 0.12, p = 0.51 respectively). This relationship remained significant after adjusting for confounders by multiple linear regression (β = 0.22, CI 0.054, 0.383 p = 0.01). FEF 25–75% % predicted and SGRQ Total score showed significant negative while SGRQ Activity score showed significant positive correlation with Raw in the final model. Conclusions Positive correlation between Raw and ADMA in the absence of systemic inflammation implies that higher ADMA has detrimental effect on NO homeostasis and can contribute to a poor outcome in asthma.
Collapse
|
16
|
DDAH1 plays dual roles in PM2.5 induced cell death in A549 cells. Biochim Biophys Acta Gen Subj 2016; 1860:2793-801. [DOI: 10.1016/j.bbagen.2016.03.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/04/2016] [Accepted: 03/15/2016] [Indexed: 11/16/2022]
|
17
|
Scott JA, North ML, Rafii M, Huang H, Pencharz P, Grasemann H. Plasma arginine metabolites reflect airway dysfunction in a murine model of allergic airway inflammation. J Appl Physiol (1985) 2015; 118:1229-33. [PMID: 25979935 DOI: 10.1152/japplphysiol.00865.2014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 03/31/2015] [Indexed: 12/22/2022] Open
Abstract
L-arginine metabolism is important in the maintenance of airway tone. Shift of metabolism from the nitric oxide synthase to arginase pathways contributes to the increased airway responsiveness in asthma. We tested the hypothesis that systemic levels of L-arginine metabolites are biomarkers reflective of airway dysfunction. We used a mouse model of acute allergic airway inflammation to OVA that manifests with significant airway hyperresponsiveness to methacholine. To determine tissue arginase activity in vivo, the isotopic enrichment of an infused L-arginine stable isotope and its product amino acid L-ornithine were measured in lung and airway homogenates using liquid chromatography-tandem mass spectrometry. Tissue and plasma concentrations of other L-arginine metabolites, including L-citrulline and symmetric and asymmetric dimethylarginine, were measured and correlated with lung arginase activity and methacholine responsiveness of the airways. The effectiveness of intratracheal instillation of an arginase inhibitor (boronoethylcysteine) on pulmonary arginase activity and circulating concentrations of L-arginine metabolites was also studied. We demonstrate that 1) plasma indexes of L-arginine bioavailability and impairment of nitric oxide synthase function correlate with airway responsiveness to methacholine; 2) plasma levels of L-ornithine predict in vivo pulmonary arginase activity and airway function; and 3) acute arginase inhibition reduces in vivo pulmonary arginase activity to control levels and normalizes plasma L-ornithine, but not L-arginine, bioavailability in this model. We conclude that plasma L-ornithine may be useful as a systemic biomarker to predict responses to therapeutic interventions targeting airway arginase in asthma.
Collapse
Affiliation(s)
- Jeremy A Scott
- Department of Health Sciences, Faculty of Health and Behavioural Sciences, Lakehead University, and Division of Medical Sciences, Northern Ontario School of Medicine, Thunder Bay, Ontario, Canada; Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada; Dalla Lana School of Public Health, Division of Occupational and Environmental Health, University of Toronto, Toronto, Ontario, Canada
| | - Michelle L North
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Mahrouk Rafii
- Program in Physiology and Experimental Medicine, Research Institute, The Hospital for Sick Children, and University of Toronto, Toronto, Ontario Canada
| | - Hailu Huang
- Program in Physiology and Experimental Medicine, Research Institute, The Hospital for Sick Children, and University of Toronto, Toronto, Ontario Canada
| | - Paul Pencharz
- Program in Physiology and Experimental Medicine, Research Institute, The Hospital for Sick Children, and University of Toronto, Toronto, Ontario Canada; Department of Pediatrics, The Hospital for Sick Children, and University of Toronto, Toronto, Ontario Canada
| | - Hartmut Grasemann
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada; Program in Physiology and Experimental Medicine, Research Institute, The Hospital for Sick Children, and University of Toronto, Toronto, Ontario Canada; Division of Respiratory Medicine, The Hospital for Sick Children, and University of Toronto, Toronto, Ontario Canada; and Department of Pediatrics, The Hospital for Sick Children, and University of Toronto, Toronto, Ontario Canada
| |
Collapse
|
18
|
Fossum SL, Mutolo MJ, Yang R, Dang H, O'Neal WK, Knowles MR, Leir SH, Harris A. Ets homologous factor regulates pathways controlling response to injury in airway epithelial cells. Nucleic Acids Res 2014; 42:13588-98. [PMID: 25414352 PMCID: PMC4267623 DOI: 10.1093/nar/gku1146] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Ets homologous factor (EHF) is an Ets family transcription factor expressed in many epithelial cell types including those lining the respiratory system. Disruption of the airway epithelium is central to many lung diseases, and a network of transcription factors coordinates its normal function. EHF can act as a transcriptional activator or a repressor, though its targets in lung epithelial cells are largely uncharacterized. Chromatin immunoprecipitation followed by deep sequencing (ChIP-seq), showed that the majority of EHF binding sites in lung epithelial cells are intergenic or intronic and coincide with putative enhancers, marked by specific histone modifications. EHF occupies many genomic sites that are close to genes involved in intercellular and cell–matrix adhesion. RNA-seq after EHF depletion or overexpression showed significant alterations in the expression of genes involved in response to wounding. EHF knockdown also targeted genes in pathways of epithelial development and differentiation and locomotory behavior. These changes in gene expression coincided with alterations in cellular phenotype including slowed wound closure and increased transepithelial resistance. Our data suggest that EHF regulates gene pathways critical for epithelial response to injury, including those involved in maintenance of barrier function, inflammation and efficient wound repair.
Collapse
Affiliation(s)
- Sara L Fossum
- Human Molecular Genetics Program, Lurie Children's Research Center, Chicago, IL 60614, USA Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Michael J Mutolo
- Human Molecular Genetics Program, Lurie Children's Research Center, Chicago, IL 60614, USA
| | - Rui Yang
- Human Molecular Genetics Program, Lurie Children's Research Center, Chicago, IL 60614, USA Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Hong Dang
- Marsico Lung Institute, University of North Carolina Cystic Fibrosis Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Wanda K O'Neal
- Marsico Lung Institute, University of North Carolina Cystic Fibrosis Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Michael R Knowles
- Marsico Lung Institute, University of North Carolina Cystic Fibrosis Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Shih-Hsing Leir
- Human Molecular Genetics Program, Lurie Children's Research Center, Chicago, IL 60614, USA Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Ann Harris
- Human Molecular Genetics Program, Lurie Children's Research Center, Chicago, IL 60614, USA Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| |
Collapse
|
19
|
Linderholm AL, Bratt JM, Schuster GU, Zeki AA, Kenyon NJ. Novel therapeutic strategies for adult obese asthmatics. Immunol Allergy Clin North Am 2014; 34:809-23. [PMID: 25282293 DOI: 10.1016/j.iac.2014.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Asthma is a complex syndrome that affects an estimated 26 million people in the United States but gaps exist in the recognition and management of asthmatic subgroups. This article proposes alternative approaches for future treatments of adult obese asthmatics who do not respond to standard controller therapies, drawing parallels between seemingly disparate therapeutics through their common signaling pathways. How metformin and statins can potentially improve airway inflammation is described and supplements are suggested. A move toward more targeted therapies for asthma subgroups is needed. These therapies address asthma and the comorbidities that accompany obesity and metabolic syndrome to provide the greatest therapeutic potential.
Collapse
Affiliation(s)
- Angela L Linderholm
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of California, Davis, 4150 V Street, Suite 3100, Davis, CA, USA
| | - Jennifer M Bratt
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of California, Davis, 4150 V Street, Suite 3100, Davis, CA, USA
| | - Gertrud U Schuster
- Nutrition Department, University of California, Davis, 430 West Health Sciences Drive, Davis, CA, USA; Immunity and Diseases Prevention Unit, Western Human Nutrition Research Center, United States Department of Agriculture (USDA), Agricultural Research Services (ARS), 430 West Health Sciences Drive, Davis, CA, USA
| | - Amir A Zeki
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of California, Davis, 4150 V Street, Suite 3100, Davis, CA, USA
| | - Nicholas J Kenyon
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of California, Davis, 4150 V Street, Suite 3100, Davis, CA, USA.
| |
Collapse
|
20
|
Abstract
Nitric oxide (NO) is important in the regulation of airway tone and airway responsiveness. Alterations in the L-arginine metabolism resulting in reduced availability of the substrate L-arginine for NO synthases, as well as the presence of NO synthase inhibitors such as asymmetric dimethylarginine, contribute to the reduced NO formation and airway dysfunction in asthma. Therapeutic interventions aiming to modulate the impaired L-arginine metabolism may help correct the enhanced airway tone and responsiveness in asthma.
Collapse
Affiliation(s)
- Jeremy A Scott
- Division of Biomedical Sciences, Department of Health Sciences, Faculty of Health and Behavioural Sciences, Northern Ontario School of Medicine, Lakehead University, 955 Oliver Road Thunder Bay, Ontario P7B 5E1, Canada
| | - Hartmut Grasemann
- Program in Physiology and Experimental Medicine, Research Institute, and Division of Respiratory Medicine, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, 555 University Avenue, Toronto, Ontario M5G 1X8, Canada.
| |
Collapse
|
21
|
Agrawal A. Urban, obese, allergic, and breathless: the shape of things to come? Immunol Allergy Clin North Am 2014; 34:xiii-xviii. [PMID: 25282297 DOI: 10.1016/j.iac.2014.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Anurag Agrawal
- Centre of Excellence for Translational Researchin Asthma and Lung Disease, CSIR-Institute of Genomics andIntegrative Biology, Mall Road, Delhi 110007, India.
| |
Collapse
|