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Leslie E, Miller M, Lafuze A, Svyatskaya S, Choi GS, Broide DH. PGAP3 regulates human bronchial epithelial cell mRNAs present in asthma and respiratory virus reference data sets. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.07.03.24309917. [PMID: 39006429 PMCID: PMC11245055 DOI: 10.1101/2024.07.03.24309917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
PGAP3 is a glycosylphosphatidylinositol (GPI) phospholipase gene localized within chromosome 17q12-21, a region highly linked to asthma. Although much is known about the function of other chromosome 17q12-21 genes expressed at increased levels in bronchial epithelium such as ORMDL3 and GSDMB, little is known about the function of increased PGAP3 expression in bronchial epithelium in the context of asthma. The aim of this study was therefore to determine whether increased PGAP3 expression in human bronchial epithelial cells regulated expression of mRNA pathways important to the pathogenesis of asthma by utilizing RNA-sequencing and bioinformatic analysis. We performed RNA-sequencing on normal human bronchial epithelial cells transfected with PGAP3 for 24 and 48 hours. PGAP3 regulated genes were compared to asthma and respiratory virus (influenza A, rhinovirus, respiratory syncytial virus) reference data sets to identify PGAP3 target genes and pathways. Approximately 9% of the upregulated PGAP3-induced genes were found in an asthma reference data set, 41% in a rhinovirus reference data set, 33% in an influenza A reference data set, and 3% in a respiratory syncytial virus reference data set. PGAP3 significantly upregulated the expression of several genes associated with the innate immune response and viral signatures of respiratory viruses associated with asthma exacerbations. Two of the highest expressed genes induced by PGAP3 are RSAD2, OASL, and IFN-λ, which are anti-viral genes associated with asthma. PGAP3 also upregulated the antiviral gene BST2, which like PGAP3 is a GPI-anchored protein. We conclude that PGAP3 expression in human bronchial epithelial cells regulates expression of genes known to be linked to asthma, and also regulates the bronchial epithelial expression of genes pertinent to the pathogenesis of respiratory viral triggered asthma exacerbations.
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Affiliation(s)
- Eric Leslie
- Department of Medicine, University of California, San Diego; La Jolla, California, USA
| | - Marina Miller
- Department of Medicine, University of California, San Diego; La Jolla, California, USA
| | - Allison Lafuze
- Department of Medicine, University of California, San Diego; La Jolla, California, USA
| | - Sofya Svyatskaya
- Department of Medicine, University of California, San Diego; La Jolla, California, USA
| | - Gil-Soon Choi
- Department of Medicine, University of California, San Diego; La Jolla, California, USA
- Department of Internal Medicine, Kosin University College of Medicine, Republic of Korea
| | - David H Broide
- Department of Medicine, University of California, San Diego; La Jolla, California, USA
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Yoshida K, Morishima Y, Ishii Y, Mastuzaka T, Shimano H, Hizawa N. Abnormal saturated fatty acids and sphingolipids metabolism in asthma. Respir Investig 2024; 62:526-530. [PMID: 38640569 DOI: 10.1016/j.resinv.2024.04.006] [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: 02/08/2024] [Revised: 03/26/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
Recent advances in fatty acid analysis have highlighted the links between lipid disruption and disease development. Lipid abnormalities are well-established risk factors for many of the most common chronic illnesses, and their involvement in asthma is also becoming clear. Here, we review research demonstrating the role of abnormal lipid metabolism in asthma, with a focus on saturated fatty acids and sphingolipids. High levels of palmitic acid, the most abundant saturated fatty acid in the human body, have been found in the airways of asthmatic patients with obesity, and were shown to worsen eosinophilic airway inflammation in asthma model mice on a high-fat diet. Aside from being a building block of longer-chain fatty acids, palmitic acid is also the starting point for de novo synthesis of ceramides, a class of sphingolipids. We outline the three main pathways for the synthesis of ceramides, which have been linked to the severity of asthma and act as precursors for the dynamic lipid mediator sphingosine 1-phosphate (S1P). S1P signaling is involved in allergen-induced eosinophilic inflammation, airway hyperresponsiveness, and immune-cell trafficking. A recent study of mice with mutations for the elongation of very long-chain fatty acid family member 6 (Elovl6), an enzyme that elongates fatty acid chains, has highlighted the potential role of palmitic acid composition, and thus lipid balance, in the pathophysiology of allergic airway inflammation. Elovl6 may be a potential therapeutic target in severe asthma.
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Affiliation(s)
- Kazufumi Yoshida
- Department of Pulmonary Medicine, Institute of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Yuko Morishima
- Department of Pulmonary Medicine, Institute of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Yukio Ishii
- Department of Respiratory Medicine, National Hospital Organization Ibaraki Higashi National Hospital, 825 Terunuma, Tokai-Mura, Naka-Gun, Ibaraki, 319-1113, Japan
| | - Takashi Mastuzaka
- Department of Endocrinology and Metabolism, Institute of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Hitoshi Shimano
- Department of Endocrinology and Metabolism, Institute of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Nobuyuki Hizawa
- Department of Pulmonary Medicine, Institute of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
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3
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Demkova L, Bugajev V, Adamcova MK, Kuchar L, Grusanovic S, Alberich-Jorda M, Draber P, Halova I. Simultaneous deletion of ORMDL1 and ORMDL3 proteins disrupts immune cell homeostasis. Front Immunol 2024; 15:1376629. [PMID: 38715613 PMCID: PMC11074395 DOI: 10.3389/fimmu.2024.1376629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 04/08/2024] [Indexed: 06/04/2024] Open
Abstract
ORMDL3 is a prominent member of a family of highly conserved endoplasmic reticulum resident proteins, ORMs (ORM1 and ORM2) in yeast, dORMDL in Drosophila and ORMDLs (ORMDL1, ORMDL2, and ORMDL3) in mammals. ORMDL3 mediates feedback inhibition of de novo sphingolipid synthesis. Expression levels of ORMDL3 are associated with the development of inflammatory and autoimmune diseases including asthma, systemic lupus erythematosus, type 1 diabetes mellitus and others. It has been shown that simultaneous deletions of other ORMDL family members could potentiate ORMDL3-induced phenotypes. To understand the complex function of ORMDL proteins in immunity in vivo, we analyzed mice with single or double deletions of Ormdl genes. In contrast to other single and double knockouts, simultaneous deletion of ORMDL1 and ORMDL3 proteins disrupted blood homeostasis and reduced immune cell content in peripheral blood and spleens of mice. The reduced number of splenocytes was not caused by aberrant immune cell homing. A competitive bone marrow transplantation assay showed that the development of Ormdl1-/-/Ormdl3-/- B cells was dependent on lymphocyte intrinsic factors. Highly increased sphingolipid production was observed in the spleens and bone marrow of Ormdl1-/-/Ormdl3-/- mice. Slight, yet significant, increase in some sphingolipid species was also observed in the spleens of Ormdl3-/- mice and in the bone marrow of both, Ormdl1-/- and Ormdl3-/- single knockout mice. Taken together, our results demonstrate that the physiological expression of ORMDL proteins is critical for the proper development and circulation of lymphocytes. We also show cell-type specific roles of individual ORMDL family members in the production of different sphingolipid species.
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Affiliation(s)
- Livia Demkova
- Laboratory of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Viktor Bugajev
- Laboratory of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Miroslava K. Adamcova
- Laboratory of Hemato-Oncology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Ladislav Kuchar
- Research Unit for Rare Diseases, Department of Pediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czechia
| | - Srdjan Grusanovic
- Laboratory of Hemato-Oncology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Meritxell Alberich-Jorda
- Laboratory of Hemato-Oncology, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Petr Draber
- Laboratory of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Ivana Halova
- Laboratory of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
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Sharma J, Khan S, Singh NC, Sahu S, Raj D, Prakash S, Bandyopadhyay P, Sarkar K, Bhosale V, Chandra T, Kumaravelu J, Barthwal MK, Gupta SK, Srivastava M, Guha R, Ammanathan V, Ghoshal UC, Mitra K, Lahiri A. ORMDL3 regulates NLRP3 inflammasome activation by maintaining ER-mitochondria contacts in human macrophages and dictates ulcerative colitis patient outcome. J Biol Chem 2024; 300:107120. [PMID: 38417794 PMCID: PMC11065740 DOI: 10.1016/j.jbc.2024.107120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 02/06/2024] [Accepted: 02/20/2024] [Indexed: 03/01/2024] Open
Abstract
Genome-wide association studies in inflammatory bowel disease have identified risk loci in the orosomucoid-like protein 3/ORMDL sphingolipid biosynthesis regulator 3 (ORMDL3) gene to confer susceptibility to ulcerative colitis (UC), but the underlying functional relevance remains unexplored. Here, we found that a subpopulation of the UC patients who had higher disease activity shows enhanced expression of ORMDL3 compared to the patients with lower disease activity and the non-UC controls. We also found that the patients showing high ORMDL3 mRNA expression have elevated interleukin-1β cytokine levels indicating positive correlation. Further, knockdown of ORMDL3 in the human monocyte-derived macrophages resulted in significantly reduced interleukin-1β release. Mechanistically, we report for the first time that ORMDL3 contributes to a mounting inflammatory response via modulating mitochondrial morphology and activation of the NLRP3 inflammasome. Specifically, we observed an increased fragmentation of mitochondria and enhanced contacts with the endoplasmic reticulum (ER) during ORMDL3 over-expression, enabling efficient NLRP3 inflammasome activation. We show that ORMDL3 that was previously known to be localized in the ER also becomes localized to mitochondria-associated membranes and mitochondria during inflammatory conditions. Additionally, ORMDL3 interacts with mitochondrial dynamic regulating protein Fis-1 present in the mitochondria-associated membrane. Accordingly, knockdown of ORMDL3 in a dextran sodium sulfate -induced colitis mouse model showed reduced colitis severity. Taken together, we have uncovered a functional role for ORMDL3 in mounting inflammation during UC pathogenesis by modulating ER-mitochondrial contact and dynamics.
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Affiliation(s)
- Jyotsna Sharma
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Shaziya Khan
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Nishakumari C Singh
- Sophisticated Analytical Instrument Facility and Research Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Shikha Sahu
- Department of Gastroenterology, Sanjay Gandhi postgraduate institute of medical sciences, Lucknow, India
| | - Desh Raj
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Shakti Prakash
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | | | - Kabita Sarkar
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Vivek Bhosale
- Toxicology and Experimental Medicine Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Tulika Chandra
- Department of Transfusion Medicine, Kings George Medical University, Lucknow, India
| | - Jagavelu Kumaravelu
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Manoj Kumar Barthwal
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Shashi Kumar Gupta
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Mrigank Srivastava
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India; Molecular Parasitology and Immunology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Rajdeep Guha
- Lab Animal Facility, CSIR-Central Drug Research Institute, Lucknow, India
| | - Veena Ammanathan
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Uday C Ghoshal
- Department of Gastroenterology, Sanjay Gandhi postgraduate institute of medical sciences, Lucknow, India
| | - Kalyan Mitra
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India; Sophisticated Analytical Instrument Facility and Research Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Amit Lahiri
- Pharmacology Division, CSIR-Central Drug Research Institute, Lucknow, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.
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Chen Y, Checa A, Zhang P, Huang M, Kelly RS, Kim M, Chen YCS, Lee-Sarwar KA, Prince N, Mendez KM, Begum S, Kachroo P, Chu SH, Stokholm J, Bønnelykke K, Litonjua AA, Bisgaard H, Weiss ST, Chawes BL, Wheelock CE, Lasky-Su JA. Sphingolipid classes and the interrelationship with pediatric asthma and asthma risk factors. Allergy 2024; 79:404-418. [PMID: 38014461 PMCID: PMC11175620 DOI: 10.1111/all.15942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 10/10/2023] [Accepted: 10/15/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND While dysregulated sphingolipid metabolism has been associated with risk of childhood asthma, the specific sphingolipid classes and/or mechanisms driving this relationship remain unclear. We aimed to understand the multifaceted role between sphingolipids and other established asthma risk factors that complicate this relationship. METHODS We performed targeted LC-MS/MS-based quantification of 77 sphingolipids in plasma from 997 children aged 6 years from two independent cohorts (VDAART and COPSAC2010 ). We examined associations of circulatory sphingolipids with childhood asthma, lung function, and three asthma risk factors: functional SNPs in ORMDL3, low vitamin D levels, and reduced gut microbial maturity. Given racial differences between these cohorts, association analyses were performed separately and then meta-analyzed together. RESULTS We observed elevations in circulatory sphingolipids with asthma phenotypes and risk factors; however, there were differential associations of sphingolipid classes with clinical outcomes and/or risk factors. While elevations from metabolites involved in ceramide recycling and catabolic pathways were associated with asthma and worse lung function [meta p-value range: 1.863E-04 to 2.24E-3], increased ceramide levels were associated with asthma risk factors [meta p-value range: 7.75E-5 to .013], but not asthma. Further investigation identified that some ceramides acted as mediators while some interacted with risk factors in the associations with asthma outcomes. CONCLUSION This study demonstrates the differential role that sphingolipid subclasses may play in asthma and its risk factors. While overall elevations in sphingolipids appeared to be deleterious overall; elevations in ceramides were uniquely associated with increases in asthma risk factors only; while elevations in asthma phenotypes were associated with recycling sphingolipids. Modification of asthma risk factors may play an important role in regulating sphingolipid homeostasis via ceramides to affect asthma. Further function work may validate the observed associations.
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Affiliation(s)
- Yulu Chen
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Antonio Checa
- Unit of Integrative Metabolomics, Institute of Environmental Medicine, Karolinska Institute, 171 77, Stockholm, Sweden
- Department of Respiratory Medicine and Allergy, Karolinska University Hospital, 171 76, Stockholm, Sweden
| | - Pei Zhang
- Unit of Integrative Metabolomics, Institute of Environmental Medicine, Karolinska Institute, 171 77, Stockholm, Sweden
- Gunma University Initiative for Advanced Research (GIAR), Gunma University, Maebashi, Gunma, 371-8511, Japan
| | - Mengna Huang
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Rachel S. Kelly
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Min Kim
- Copenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, 2820 Gentofte, Denmark
| | - Yih-Chieh S. Chen
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Division of Allergy and Clinical Immunology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Kathleen A. Lee-Sarwar
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Division of Allergy and Clinical Immunology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Nicole Prince
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Kevin M. Mendez
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Sofina Begum
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Priyadarshini Kachroo
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Su H. Chu
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Jakob Stokholm
- Copenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, 2820 Gentofte, Denmark
| | - Klaus Bønnelykke
- Copenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, 2820 Gentofte, Denmark
| | - Augusto A. Litonjua
- Division of Pediatric Pulmonary Medicine, Department of Pediatrics, Golisano Children’s Hospital and University of Rochester Medical Center, Rochester, NY, USA
| | - Hans Bisgaard
- Copenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, 2820 Gentofte, Denmark
| | - Scott T. Weiss
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Bo L. Chawes
- Copenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, 2820 Gentofte, Denmark
| | - Craig E. Wheelock
- Unit of Integrative Metabolomics, Institute of Environmental Medicine, Karolinska Institute, 171 77, Stockholm, Sweden
- Department of Respiratory Medicine and Allergy, Karolinska University Hospital, 171 76, Stockholm, Sweden
- Gunma University Initiative for Advanced Research (GIAR), Gunma University, Maebashi, Gunma, 371-8511, Japan
| | - Jessica A. Lasky-Su
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
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Piña F, Yan B, Hu J, Niwa M. Reticulons bind sphingolipids to activate the endoplasmic reticulum cell cycle checkpoint, the ER surveillance pathway. Cell Rep 2023; 42:113403. [PMID: 37979174 DOI: 10.1016/j.celrep.2023.113403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/09/2022] [Accepted: 10/23/2023] [Indexed: 11/20/2023] Open
Abstract
The inheritance of a functional endoplasmic reticulum (ER) is ensured by the ER stress surveillance (ERSU) pathway. Here, we made the unexpected discovery that reticulon 1 (Rtn1) and Yop1, well-known ER-curvature-generating proteins, each possess two sphingolipid-binding motifs within their transmembrane domains and that these motifs recognize the ER-stress-induced sphingolipid phytosphingosine (PHS), resulting in an ER inheritance block. Upon binding PHS, Rtn1/Yop1 accumulate on the ER tubule, poised to enter the emerging daughter cell, and cause its misdirection to the bud scars (i.e., previous cell division sites). Amino acid changes in the conserved PHS-binding motifs preclude Rtn1 or Yop1 from binding PHS and diminish their enrichment on the tubular ER, ultimately preventing the ER-stress-induced inheritance block. Conservation of these sphingolipid-binding motifs in human reticulons suggests that sphingolipid binding to Rtn1 and Yop1 represents an evolutionarily conserved mechanism that enables cells to respond to ER stress.
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Affiliation(s)
- Francisco Piña
- Division of Biological Sciences, Molecular Biology Section, University of California, San Diego, NSB#1, Rm. 5328, 9500 Gilman Drive, San Diego, CA 92093-0377, USA
| | - Bing Yan
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Rm. 6210, Chaoyang District, Beijing 100101, China
| | - Junjie Hu
- Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Rm. 6210, Chaoyang District, Beijing 100101, China
| | - Maho Niwa
- Division of Biological Sciences, Molecular Biology Section, University of California, San Diego, NSB#1, Rm. 5328, 9500 Gilman Drive, San Diego, CA 92093-0377, USA.
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Cheng Q, He F, Zhao W, Xu X, Shang Y, Huang W. Histone acetylation regulates ORMDL3 expression-mediated NLRP3 inflammasome overexpression during RSV-allergic exacerbation mice. J Cell Physiol 2023; 238:2904-2923. [PMID: 37877592 DOI: 10.1002/jcp.31141] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/26/2023] [Accepted: 10/03/2023] [Indexed: 10/26/2023]
Abstract
Whether respiratory syncytial virus (RSV) infection in early life may induce orosomucoid 1-like protein 3 (ORMDL3) and lead to NOD-like receptor protein 3 (NLRP3) inflammasome overexpression in asthma, which could be alleviated by the inhibition of HAT p300. First, we explored the relationship between RSV, ORMDL3, and recurrent wheezing in the future through clinical data of infants with RSV-induced bronchiolitis. Then, we used bronchial epithelium transformed with Ad12-SV40 2B (BEAS-2B) and an asthmatic mouse model of repeated RSV infection and OVA sensitization and challenge (rRSV + OVA) in early life to assess the effects of ORMDL3 on NLRP3 inflammasome and that of histone acetylation on ORMDL3 regulation. ORMDL3 overexpression is the independent risk factor of recurrent wheezing in RSV-bronchiolitis follow-up. In BEAS-2B, ORMDL3-induced NLRP3 inflammasome expression. BEAS-2B infected by RSV resulted in overexpression of ORMDL3 and NLRP3 inflammasome and histone hyperacetylation, while ORMDL3-small interfering RNA and C646 interfered could decrease NLRP3 inflammasome. ORMDL3 overexpression in mouse lung increased NLRP3 inflammasome. The expression of ORMDL3 and NLRP3 inflammasome significantly increased, with histone hyperacetylation in the lung in rRSV + OVA mice. p300 and acetylH3 bound to ORMDL3 promoter. In C646 + rRSV + OVA mice, C646 alleviated lung inflammation and overexpression of ORMDL3 and NLRP3 inflammasome. RSV activated ORMDL3 overexpression through histone hyperacetylation and induced NLRP3 inflammasome expression.
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Affiliation(s)
- Qi Cheng
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Fanghan He
- Department of Pediatric Respiratory, Xi'an Children's Hospital, Xi'an, China
| | - Wenqi Zhao
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xianhong Xu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yunxiao Shang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wanjie Huang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
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8
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Demkova L, Bugajev V, Utekal P, Kuchar L, Schuster B, Draber P, Halova I. Simultaneous reduction of all ORMDL proteins decreases the threshold of mast cell activation. Sci Rep 2023; 13:9615. [PMID: 37316542 PMCID: PMC10267218 DOI: 10.1038/s41598-023-36344-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 06/01/2023] [Indexed: 06/16/2023] Open
Abstract
In mammals, the ORMDL family of evolutionarily conserved sphingolipid regulators consists of three highly homologous members, ORMDL1, ORMDL2 and ORMDL3. ORMDL3 gene has been associated with childhood-onset asthma and other inflammatory diseases in which mast cells play an important role. We previously described increased IgE-mediated activation of mast cells with simultaneous deletions of ORMDL2 and ORMDL3 proteins. In this study, we prepared mice with Ormdl1 knockout and thereafter, produced primary mast cells with reduced expression of one, two or all three ORMDL proteins. The lone deletion of ORMDL1, or in combination with ORMDL2, had no effect on sphingolipid metabolism nor IgE-antigen dependent responses in mast cells. Double ORMDL1 and ORMDL3 knockout mast cells displayed enhanced IgE-mediated calcium responses and cytokine production. Silencing of ORMDL3 in mast cells after maturation increased their sensitivity to antigen. Mast cells with reduced levels of all three ORMDL proteins demonstrated pro-inflammatory responses even in the absence of antigen activation. Overall, our results show that reduced levels of ORMDL proteins shift mast cells towards a pro-inflammatory phenotype, which is predominantly dependent on the levels of ORMDL3 expression.
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Affiliation(s)
- Livia Demkova
- Laboratory of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 14220, Prague 4, Czech Republic
| | - Viktor Bugajev
- Laboratory of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 14220, Prague 4, Czech Republic
| | - Pavol Utekal
- Laboratory of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 14220, Prague 4, Czech Republic
| | - Ladislav Kuchar
- Research Unit for Rare Diseases, Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Björn Schuster
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
- CZ-OPENSCREEN, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Petr Draber
- Laboratory of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 14220, Prague 4, Czech Republic.
| | - Ivana Halova
- Laboratory of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 14220, Prague 4, Czech Republic.
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9
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Brown RDR, Spiegel S. ORMDL in metabolic health and disease. Pharmacol Ther 2023; 245:108401. [PMID: 37003301 PMCID: PMC10148913 DOI: 10.1016/j.pharmthera.2023.108401] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023]
Abstract
Obesity is a key risk factor for the development of metabolic disease. Bioactive sphingolipid metabolites are among the lipids increased in obesity. Obesogenic saturated fatty acids are substrates for serine palmitoyltransferase (SPT) the rate-limiting step in de novo sphingolipid biosynthesis. The mammalian orosomucoid-like protein isoforms ORMDL1-3 negatively regulate SPT activity. Here we summarize evidence that dysregulation of sphingolipid metabolism and SPT activity correlates with pathogenesis of obesity. This review also discusses the current understanding of the function of SPT and ORMDL in obesity and metabolic disease. Gaps and limitations in current knowledge are highlighted together with the need to further understand how ORMDL3, which has been identified as an obesity-related gene, contributes to the pathogenesis of obesity and development of metabolic disease related to its physiological functions. Finally, we point out the needs to move this young field of research forward.
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Affiliation(s)
- Ryan D R Brown
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Sarah Spiegel
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA.
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10
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James BN, Weigel C, Green CD, Brown RDR, Palladino END, Tharakan A, Milstien S, Proia RL, Martin RK, Spiegel S. Neutrophilia in severe asthma is reduced in Ormdl3 overexpressing mice. FASEB J 2023; 37:e22799. [PMID: 36753412 PMCID: PMC9990076 DOI: 10.1096/fj.202201821r] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 01/11/2023] [Accepted: 01/20/2023] [Indexed: 02/09/2023]
Abstract
Genome-wide association studies have linked the ORM (yeast)-like protein isoform 3 (ORMDL3) to asthma severity. Although ORMDL3 is a member of a family that negatively regulates serine palmitoyltransferase (SPT) and thus biosynthesis of sphingolipids, it is still unclear whether ORMDL3 and altered sphingolipid synthesis are causally related to non-Th2 severe asthma associated with a predominant neutrophil inflammation and high interleukin-17 (IL-17) levels. Here, we examined the effects of ORMDL3 overexpression in a preclinical mouse model of allergic lung inflammation that is predominantly neutrophilic and recapitulates many of the clinical features of severe human asthma. ORMDL3 overexpression reduced lung and circulating levels of dihydrosphingosine, the product of SPT. However, the most prominent effect on sphingolipid levels was reduction of circulating S1P. The LPS/OVA challenge increased markers of Th17 inflammation with a predominant infiltration of neutrophils into the lung. A significant decrease of neutrophil infiltration was observed in the Ormdl3 transgenic mice challenged with LPS/OVA compared to the wild type and concomitant decrease in IL-17, that plays a key role in the pathogenesis of neutrophilic asthma. LPS decreased survival of murine neutrophils, which was prevented by co-treatment with S1P. Moreover, S1P potentiated LPS-induced chemotaxis of neutrophil, suggesting that S1P can regulate neutrophil survival and recruitment following LPS airway inflammation. Our findings reveal a novel connection between ORMDL3 overexpression, circulating levels of S1P, IL-17 and neutrophil recruitment into the lung, and questions the potential involvement of ORMDL3 in the pathology, leading to development of severe neutrophilic asthma.
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Affiliation(s)
- Briana N. James
- Department of Biochemistry and Molecular BiologyVirginia Commonwealth University School of MedicineRichmondVirginiaUSA
| | - Cynthia Weigel
- Department of Biochemistry and Molecular BiologyVirginia Commonwealth University School of MedicineRichmondVirginiaUSA
| | - Christopher D. Green
- Department of Biochemistry and Molecular BiologyVirginia Commonwealth University School of MedicineRichmondVirginiaUSA
| | - Ryan D. R. Brown
- Department of Biochemistry and Molecular BiologyVirginia Commonwealth University School of MedicineRichmondVirginiaUSA
| | - Elisa N. D. Palladino
- Department of Biochemistry and Molecular BiologyVirginia Commonwealth University School of MedicineRichmondVirginiaUSA
| | - Anuj Tharakan
- Department of Microbiology and ImmunologyVirginia Commonwealth University School of MedicineRichmondVirginiaUSA
| | - Sheldon Milstien
- Department of Biochemistry and Molecular BiologyVirginia Commonwealth University School of MedicineRichmondVirginiaUSA
| | - Richard L. Proia
- Genetics and Biochemistry BranchNational Institute of Diabetes and Digestive and Kidney Diseases, NIHBethesdaMarylandUSA
| | - Rebecca K. Martin
- Department of Microbiology and ImmunologyVirginia Commonwealth University School of MedicineRichmondVirginiaUSA
| | - Sarah Spiegel
- Department of Biochemistry and Molecular BiologyVirginia Commonwealth University School of MedicineRichmondVirginiaUSA
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11
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Lee JH, Son SH, Kim NJ, Im DS. NJK14047 Suppression of the p38 MAPK Ameliorates OVA-Induced Allergic Asthma during Sensitization and Challenge Periods. Biomol Ther (Seoul) 2023; 31:183-192. [PMID: 36171179 PMCID: PMC9970832 DOI: 10.4062/biomolther.2022.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/15/2022] [Accepted: 08/01/2022] [Indexed: 11/05/2022] Open
Abstract
p38 MAPK has been implicated in the pathogenesis of asthma as well as pro-allergic Th2 cytokines, orosomucoid-like protein isoform 3 (ORMDL3), regulation of sphingolipid biosynthesis, and regulatory T cell-derived IL-35. To elucidate the role of p38 MAPK in the pathogenesis of asthma, we examined the effect of NJK14047, an inhibitor of p38 MAPK, against ovalbumin (OVA)-induced allergic asthma; we administrated NJK14047 before OVA sensitization or challenge in BALB/c mice. As ORMDL3 regulation of sphingolipid biosynthesis has been implicated in childhood asthma, ORMDL3 expression and sphingolipids contents were also analyzed. NJK14047 inhibited antigen-induced degranulation of RBL-2H3 mast cells. NJK14047 administration both before OVA sensitization and challenge strongly inhibited the increase in eosinophil and lymphocyte counts in the bronchoalveolar lavage fluid. In addition, NJK14047 administration inhibited the increase in the levels of Th2 cytokines. Moreover, NJK14047 reduced the inflammatory score and the number of periodic acid-Schiff-stained cells in the lungs. Further, OVA-induced increase in the levels of C16:0 and C24:1 ceramides was not altered by NJK14047. These results suggest that p38 MAPK plays crucial roles in activation of dendritic and mast cells during sensitization and challenge periods, but not in ORMDL3 and sphingolipid biosynthesis.
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Affiliation(s)
- Ju-Hyun Lee
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02446, Republic of Korea
| | - Seung-Hwan Son
- Department of Basic Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02446, Republic of Korea
| | - Nam-Jung Kim
- Department of Basic Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02446, Republic of Korea
| | - Dong-Soon Im
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02446, Republic of Korea,Department of Basic Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02446, Republic of Korea,Corresponding Author E-mail: , Tel: +82-2-961-9377, Fax: +82-2-961-9580
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12
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Chandrasekaran R, Bruno SR, Mark ZF, Walzer J, Caffry S, Gold C, Kumar A, Chamberlain N, Butzirus IM, Morris CR, Daphtary N, Aliyeva M, Lam YW, van der Vliet A, Janssen-Heininger Y, Poynter ME, Dixon AE, Anathy V. Mitoquinone mesylate attenuates pathological features of lean and obese allergic asthma in mice. Am J Physiol Lung Cell Mol Physiol 2023; 324:L141-L153. [PMID: 36511516 PMCID: PMC9902225 DOI: 10.1152/ajplung.00249.2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/05/2022] [Accepted: 12/01/2022] [Indexed: 12/15/2022] Open
Abstract
Obesity is associated with severe, difficult-to-control asthma, and increased airway oxidative stress. Mitochondrial reactive oxygen species (mROS) are an important source of oxidative stress in asthma, leading us to hypothesize that targeting mROS in obese allergic asthma might be an effective treatment. Using a mouse model of house dust mite (HDM)-induced allergic airway disease in mice fed a low- (LFD) or high-fat diet (HFD), and the mitochondrial antioxidant MitoQuinone (MitoQ), we investigated the effects of obesity and ROS on HDM-induced airway inflammation, remodeling, and airway hyperresponsiveness (AHR). Obese allergic mice showed increased lung tissue eotaxin, airway tissue eosinophilia, and AHR compared with lean allergic mice. MitoQ reduced airway inflammation, remodeling, and hyperreactivity in both lean and obese allergic mice, and tissue eosinophilia in obese-allergic mice. Similar effects were observed with decyl triphosphonium (dTPP+), the hydrophobic cationic moiety of MitoQ lacking ubiquinone. HDM-induced oxidative sulfenylation of proteins was increased particularly in HFD mice. Although only MitoQ reduced sulfenylation of proteins involved in protein folding in the endoplasmic reticulum (ER), ER stress was attenuated by both MitoQ and dTPP+ suggesting the anti-allergic effects of MitoQ are mediated in part by effects of its hydrophobic dTPP+ moiety reducing ER stress. In summary, oxidative signaling is an important mediator of allergic airway disease. MitoQ, likely through reducing protein oxidation and affecting the UPR pathway, might be effective for the treatment of asthma and specific features of obese asthma.
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Affiliation(s)
| | - Sierra R Bruno
- Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, Vermont
| | - Zoe F Mark
- Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, Vermont
| | - Joseph Walzer
- Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, Vermont
| | - Sarah Caffry
- Department of Medicine, University of Vermont, Burlington, Vermont
| | - Clarissa Gold
- Department of Biology and Vermont Biomedical Research Network Proteomics Facility, University of Vermont, Burlington, Vermont
| | - Amit Kumar
- Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, Vermont
| | - Nicolas Chamberlain
- Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, Vermont
| | | | - Carolyn R Morris
- Department of Medicine, University of Vermont, Burlington, Vermont
| | - Nirav Daphtary
- Department of Medicine, University of Vermont, Burlington, Vermont
| | - Minara Aliyeva
- Department of Medicine, University of Vermont, Burlington, Vermont
| | - Ying-Wai Lam
- Department of Biology and Vermont Biomedical Research Network Proteomics Facility, University of Vermont, Burlington, Vermont
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, Vermont
| | | | | | - Anne E Dixon
- Department of Medicine, University of Vermont, Burlington, Vermont
| | - Vikas Anathy
- Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, Vermont
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13
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Sasset L, Chowdhury KH, Manzo OL, Rubinelli L, Konrad C, Maschek JA, Manfredi G, Holland WL, Di Lorenzo A. Sphingosine-1-phosphate controls endothelial sphingolipid homeostasis via ORMDL. EMBO Rep 2023; 24:e54689. [PMID: 36408842 PMCID: PMC9827560 DOI: 10.15252/embr.202254689] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 10/04/2022] [Accepted: 10/28/2022] [Indexed: 11/22/2022] Open
Abstract
Disruption of sphingolipid homeostasis and signaling has been implicated in diabetes, cancer, cardiometabolic, and neurodegenerative disorders. Yet, mechanisms governing cellular sensing and regulation of sphingolipid homeostasis remain largely unknown. In yeast, serine palmitoyltransferase, catalyzing the first and rate-limiting step of sphingolipid de novo biosynthesis, is negatively regulated by Orm1 and 2. Lowering sphingolipids triggers Orms phosphorylation, upregulation of serine palmitoyltransferase activity and sphingolipid de novo biosynthesis. However, mammalian orthologs ORMDLs lack the N-terminus hosting the phosphosites. Thus, which sphingolipid(s) are sensed by the cells, and mechanisms of homeostasis remain largely unknown. Here, we identify sphingosine-1-phosphate (S1P) as key sphingolipid sensed by cells via S1PRs to maintain homeostasis. The increase in S1P-S1PR signaling stabilizes ORMDLs, restraining SPT activity. Mechanistically, the hydroxylation of ORMDLs at Pro137 allows a constitutive degradation of ORMDLs via ubiquitin-proteasome pathway, preserving SPT activity. Disrupting S1PR/ORMDL axis results in ceramide accrual, mitochondrial dysfunction, impaired signal transduction, all underlying endothelial dysfunction, early event in the onset of cardio- and cerebrovascular diseases. Our discovery may provide the molecular basis for therapeutic intervention restoring sphingolipid homeostasis.
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Affiliation(s)
- Linda Sasset
- Department of Pathology and Laboratory MedicineCardiovascular Research Institute, Weill Cornell MedicineNew YorkNYUSA
- Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNYUSA
| | - Kamrul H Chowdhury
- Department of Nutrition and Integrative PhysiologyUniversity of Utah College of HealthSalt Lake CityUTUSA
| | - Onorina L Manzo
- Department of Pathology and Laboratory MedicineCardiovascular Research Institute, Weill Cornell MedicineNew YorkNYUSA
- Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNYUSA
- Department of PharmacyUniversity of Naples “Federico II”NaplesItaly
| | - Luisa Rubinelli
- Department of Pathology and Laboratory MedicineCardiovascular Research Institute, Weill Cornell MedicineNew YorkNYUSA
- Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNYUSA
| | - Csaba Konrad
- Department of Nutrition and Integrative PhysiologyUniversity of Utah College of HealthSalt Lake CityUTUSA
| | - J Alan Maschek
- Department of Nutrition and Integrative PhysiologyUniversity of Utah College of HealthSalt Lake CityUTUSA
| | - Giovanni Manfredi
- Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNYUSA
| | - William L Holland
- Department of Nutrition and Integrative PhysiologyUniversity of Utah College of HealthSalt Lake CityUTUSA
| | - Annarita Di Lorenzo
- Department of Pathology and Laboratory MedicineCardiovascular Research Institute, Weill Cornell MedicineNew YorkNYUSA
- Brain and Mind Research Institute, Weill Cornell MedicineNew YorkNYUSA
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14
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Yoshida K, Morishima Y, Ano S, Sakurai H, Kuramoto K, Tsunoda Y, Yazaki K, Nakajima M, Sherpa MT, Matsuyama M, Kiwamoto T, Matsuno Y, Ishii Y, Hayashi A, Matsuzaka T, Shimano H, Hizawa N. ELOVL6 deficiency aggravates allergic airway inflammation through the ceramide-S1P pathway in mice. J Allergy Clin Immunol 2022; 151:1067-1080.e9. [PMID: 36592705 DOI: 10.1016/j.jaci.2022.12.808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 11/30/2022] [Accepted: 12/06/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Elongation of very-long-chain fatty acids protein 6 (ELOVL6), an enzyme regulating elongation of saturated and monounsaturated fatty acids with C12 to C16 to those with C18, has been recently indicated to affect various immune and inflammatory responses; however, the precise process by which ELOVL6-related lipid dysregulation affects allergic airway inflammation is unclear. OBJECTIVES This study sought to evaluate the biological roles of ELOVL6 in allergic airway responses and investigate whether regulating lipid composition in the airways could be an alternative treatment for asthma. METHODS Expressions of ELOVL6 and other isoforms were examined in the airways of patients who are severely asthmatic and in mouse models of asthma. Wild-type and ELOVL6-deficient (Elovl6-/-) mice were analyzed for ovalbumin-induced, and also for house dust mite-induced, allergic airway inflammation by cell biological and biochemical approaches. RESULTS ELOVL6 expression was downregulated in the bronchial epithelium of patients who are severely asthmatic compared with controls. In asthmatic mice, ELOVL6 deficiency led to enhanced airway inflammation in which lymphocyte egress from lymph nodes was increased, and both type 2 and non-type 2 immune responses were upregulated. Lipidomic profiling revealed that the levels of palmitic acid, ceramides, and sphingosine-1-phosphate were higher in the lungs of ovalbumin-immunized Elovl6-/- mice compared with those of wild-type mice, while the aggravated airway inflammation was ameliorated by treatment with fumonisin B1 or DL-threo-dihydrosphingosine, inhibitors of ceramide synthase and sphingosine kinase, respectively. CONCLUSIONS This study illustrates a crucial role for ELOVL6 in controlling allergic airway inflammation via regulation of fatty acid composition and ceramide-sphingosine-1-phosphate biosynthesis and indicates that ELOVL6 may be a novel therapeutic target for asthma.
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Affiliation(s)
- Kazufumi Yoshida
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuko Morishima
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.
| | - Satoshi Ano
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; Department of Respiratory Medicine, National Hospital Organization Kasumigaura Medical Center, Tsuchiura, Ibaraki, Japan
| | - Hirofumi Sakurai
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kenya Kuramoto
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshiya Tsunoda
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kai Yazaki
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masayuki Nakajima
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Mingma Thering Sherpa
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masashi Matsuyama
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takumi Kiwamoto
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yosuke Matsuno
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yukio Ishii
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Akio Hayashi
- Exploratory Research Laboratories, Minase Research Institute, Ono Pharmaceutical Co Ltd, Mishima, Osaka, Japan; AMED-CREST, Japan Agency for Medical Research and Development (AMED), Chiyoda, Tokyo, Japan
| | - Takashi Matsuzaka
- Department of Endocrinology and Metabolism, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; AMED-CREST, Japan Agency for Medical Research and Development (AMED), Chiyoda, Tokyo, Japan
| | - Hitoshi Shimano
- Department of Endocrinology and Metabolism, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; AMED-CREST, Japan Agency for Medical Research and Development (AMED), Chiyoda, Tokyo, Japan
| | - Nobuyuki Hizawa
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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15
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Curtiss ML, Deshane JS. "Stick a Fork in Me; I'm Done": Epithelial Cell Expression of ORMDL Sphingolipid Biosynthesis Regulator 3 Mediates Autophagic Cell Death. Am J Respir Cell Mol Biol 2022; 66:593-595. [PMID: 35377833 PMCID: PMC9163635 DOI: 10.1165/rcmb.2022-0023ed] [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] [Indexed: 11/24/2022] Open
Affiliation(s)
- Miranda L Curtiss
- Department of Medicine, Division of Pulmonary Allergy and Critical Care Medicine University of Alabama at Birmingham Birmingham, Alabama
| | - Jessy S Deshane
- Department of Medicine, Division of Pulmonary Allergy and Critical Care Medicine University of Alabama at Birmingham Birmingham, Alabama
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16
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Guo F, Hao Y, Zhang L, Croteau-Chonka DC, Thibault D, Kothari P, Li L, Levy BD, Zhou X, Raby BA. Asthma Susceptibility Gene ORMDL3 Promotes Autophagy in Human Bronchial Epithelium. Am J Respir Cell Mol Biol 2022; 66:661-670. [PMID: 35353673 PMCID: PMC9163638 DOI: 10.1165/rcmb.2021-0305oc] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 01/03/2022] [Indexed: 02/05/2023] Open
Abstract
The genome-wide association study (GWAS)-identified asthma susceptibility risk alleles on chromosome 17q21 increase the expression of ORMDL3 (ORMDL sphingolipid biosynthesis regulator 3) in lung tissue. Given the importance of epithelial integrity in asthma, we hypothesized that ORMDL3 directly impacted bronchial epithelial function. To determine whether and how ORMDL3 expression impacts the bronchial epithelium, in studies using both primary human bronchial epithelial cells and human bronchial epithelial cell line, 16HBE (16HBE14o-), we assessed the impact of ORMDL3 on autophagy. Studies included: autophagosome detection by electron microscopy, RFP-GFP-LC3B to assess autophagic activity, and Western blot analysis of autophagy-related proteins. Mechanistic assessments included immunoprecipitation assays, intracellular calcium mobilization assessments, and cell viability assays. Coexpression of ORMDL3 and autophagy-related genes was measured in primary human bronchial epithelial cells derived from 44 subjects. Overexpressing ORMDL3 demonstrated increased numbers of autophagosomes and increased levels of autophagy-related proteins LC3B, ATG3, ATG7, and ATG16L1. ORMDL3 overexpression promotes autophagy and subsequent cell death by impairing intracellular calcium mobilization through interacting with SERCA2. Strong correlation was observed between expression of ORMDL3 and autophagy-related genes in patient-derived bronchial epithelial cells. Increased ORMDL3 expression induces autophagy, possibly through interacting with SERCA2, thereby inhibiting intracellular calcium influx, and induces cell death, impairing bronchial epithelial function in asthma.
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Affiliation(s)
- Feng Guo
- Channing Division of Network Medicine and
| | - Yuan Hao
- Channing Division of Network Medicine and
- Division of Pulmonary Medicine, Department of Pediatrics, Boston Children’s Hospital and Harvard Medical School, Boston, Massachusetts; and
| | - Li Zhang
- Channing Division of Network Medicine and
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, P.R. China
| | | | | | | | - Lijia Li
- Channing Division of Network Medicine and
| | - Bruce D. Levy
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Xiaobo Zhou
- Channing Division of Network Medicine and
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Benjamin A. Raby
- Channing Division of Network Medicine and
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
- Division of Pulmonary Medicine, Department of Pediatrics, Boston Children’s Hospital and Harvard Medical School, Boston, Massachusetts; and
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17
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Garza-Hernandez D, Sepulveda-Villegas M, Garcia-Pelaez J, Aguirre-Gamboa R, Lakatos PL, Estrada K, Martinez-Vazquez M, Trevino V. A systematic review and functional bioinformatics analysis of genes associated with Crohn's disease identify more than 120 related genes. BMC Genomics 2022; 23:302. [PMID: 35418025 PMCID: PMC9008988 DOI: 10.1186/s12864-022-08491-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 02/28/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Crohn's disease is one of the two categories of inflammatory bowel diseases that affect the gastrointestinal tract. The heritability estimate has been reported to be 0.75. Several genes linked to Crohn's disease risk have been identified using a plethora of strategies such as linkage-based studies, candidate gene association studies, and lately through genome-wide association studies (GWAS). Nevertheless, to our knowledge, a compendium of all the genes that have been associated with CD is lacking. METHODS We conducted functional analyses of a gene set generated from a systematic review where genes potentially related to CD found in the literature were analyzed and classified depending on the genetic evidence reported and putative biological function. For this, we retrieved and analyzed 2496 abstracts comprising 1067 human genes plus 22 publications regarding 133 genes from GWAS Catalog. Then, each gene was curated and categorized according to the type of evidence associated with Crohn's disease. RESULTS We identified 126 genes associated with Crohn's disease risk by specific experiments. Additionally, 71 genes were recognized associated through GWAS alone, 18 to treatment response, 41 to disease complications, and 81 to related diseases. Bioinformatic analysis of the 126 genes supports their importance in Crohn's disease and highlights genes associated with specific aspects such as symptoms, drugs, and comorbidities. Importantly, most genes were not included in commercial genetic panels suggesting that Crohn's disease is genetically underdiagnosed. CONCLUSIONS We identified a total of 126 genes from PubMed and 71 from GWAS that showed evidence of association to diagnosis, 18 to treatment response, and 41 to disease complications in Crohn's disease. This prioritized gene catalog can be explored at http://victortrevino.bioinformatics.mx/CrohnDisease .
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Affiliation(s)
- Debora Garza-Hernandez
- Tecnologico de Monterrey, Escuela de Medicina, Cátedra de Bioinformática, Av. Morones Prieto No. 3000, Colonia Los Doctores, 64710, Monterrey, Nuevo León, Mexico
| | - Maricruz Sepulveda-Villegas
- Tecnologico de Monterrey, Escuela de Medicina, Cátedra de Bioinformática, Av. Morones Prieto No. 3000, Colonia Los Doctores, 64710, Monterrey, Nuevo León, Mexico
| | - Jose Garcia-Pelaez
- Instituto de Investigação e Inovação em Saude-i3S, Universidade do Porto, Porto, Portugal.,Ipatimup, Institute of Molecular Pathology and Immunology at the University of Porto, Porto, Portugal
| | | | - Peter L Lakatos
- McGill University Health Centre, Division of Gastroenterology, IBD Centre, Montreal General Hospital, 1650 Ave. Cedar, D16.173.1, Montreal, QC, H3G 1A4, Canada
| | - Karol Estrada
- Graduate Professional Studies, Brandeis University, Waltham, MA, 02453, USA
| | - Manuel Martinez-Vazquez
- Tecnologico de Monterrey, Instituto de Medicina Interna, Centro Médico Zambrano Hellion, Av. Batallón de San Patricio No. 112, Colonia Real San Agustín, 66278, San Pedro Garza García, Nuevo León, Mexico
| | - Victor Trevino
- Tecnologico de Monterrey, Escuela de Medicina, Cátedra de Bioinformática, Av. Morones Prieto No. 3000, Colonia Los Doctores, 64710, Monterrey, Nuevo León, Mexico. .,Tecnologico de Monterrey, The Institute for Obesity Research, Integrative Biology Unit, Eugenio Garza Sada 2501 Avenue, 64849, Monterrey, Nuevo Leon, Mexico.
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18
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Portelli MA, Rakkar K, Hu S, Guo Y, Adcock IM, Sayers I. Translational Analysis of Moderate to Severe Asthma GWAS Signals Into Candidate Causal Genes and Their Functional, Tissue-Dependent and Disease-Related Associations. FRONTIERS IN ALLERGY 2022; 2:738741. [PMID: 35386986 PMCID: PMC8974692 DOI: 10.3389/falgy.2021.738741] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 09/06/2021] [Indexed: 12/23/2022] Open
Abstract
Asthma affects more than 300 million people globally and is both under diagnosed and under treated. The most recent and largest genome-wide association study investigating moderate to severe asthma to date was carried out in 2019 and identified 25 independent signals. However, as new and in-depth downstream databases become available, the translational analysis of these signals into target genes and pathways is timely. In this study, unique (U-BIOPRED) and publicly available datasets (HaploReg, Open Target Genetics and GTEx) were investigated for the 25 GWAS signals to identify 37 candidate causal genes. Additional traits associated with these signals were identified through PheWAS using the UK Biobank resource, with asthma and eosinophilic traits amongst the strongest associated. Gene expression omnibus dataset examination identified 13 candidate genes with altered expression profiles in the airways and blood of asthmatic subjects, including MUC5AC and STAT6. Gene expression analysis through publicly available datasets highlighted lung tissue cell specific expression, with both MUC5AC and SLC22A4 genes showing enriched expression in ciliated cells. Gene enrichment pathway and interaction analysis highlighted the dominance of the HLA-DQA1/A2/B1/B2 gene cluster across many immunological diseases including asthma, type I diabetes, and rheumatoid arthritis. Interaction and prediction analyses found IL33 and IL18R1 to be key co-localization partners for other genes, predicted that CD274 forms co-expression relationships with 13 other genes, including the HLA-DQA1/A2/B1/B2 gene cluster and that MUC5AC and IL37 are co-expressed. Drug interaction analysis revealed that 11 of the candidate genes have an interaction with available therapeutics. This study provides significant insight into these GWAS signals in the context of cell expression, function, and disease relationship with the view of informing future research and drug development efforts for moderate-severe asthma.
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Affiliation(s)
- Michael A Portelli
- Centre for Respiratory Research, Translational Medical Sciences, School of Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Kamini Rakkar
- Centre for Respiratory Research, Translational Medical Sciences, School of Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
| | - Sile Hu
- Data Science Institute, Imperial College London, London, United Kingdom
| | - Yike Guo
- Data Science Institute, Imperial College London, London, United Kingdom
| | - Ian M Adcock
- The National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Ian Sayers
- Centre for Respiratory Research, Translational Medical Sciences, School of Medicine, National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Biodiscovery Institute, University of Nottingham, Nottingham, United Kingdom
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19
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Weng N, Miller M, Pham AK, Komor AC, Broide DH. Single-base editing of rs12603332 on chromosome 17q21 with a cytosine base editor regulates ORMDL3 and ATF6α expression. Allergy 2022; 77:1139-1149. [PMID: 34525218 DOI: 10.1111/all.15092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/08/2021] [Accepted: 08/09/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Genetic association studies have demonstrated that the SNP rs12603332 located on chromosome 17q21 is highly associated with the risk of the development of asthma. METHODS To determine whether SNP rs1260332 is functional in regulating levels of ORMDL3 expression, we used a Cytosine Base Editor (CBE) plasmid DNA or a CBE mRNA to edit the rs12603332 C risk allele to the T non-risk allele in a human lymphocyte cell line (i.e., Jurkat cells) and in primary human CD4 T cells that carry the C risk alleles. RESULTS Jurkat cells with the rs12603332 C risk allele expressed significantly higher levels of ORMDL3 mRNA, as well as the ORMDL3 regulated gene ATF6α as assessed by qPCR compared to Jurkat clones with the T non-risk allele. In primary human CD4 T cells, we edited 90 ± 3% of the rs12603332-C risk allele to the T non-risk allele and observed a reduction in ORMDL3 and ATF6α expression. Bioinformatic analysis predicted that the non-risk allele rs12603332-T could be the central element of the E-box binding motif (CANNTG) recognized by the E47 transcription factor. An EMSA assay confirmed the bioinformatics prediction demonstrating that a rs12603332-T containing probe bound to the transcription factor E47 in vitro. CONCLUSIONS SNP rs12603332 is functional in regulating the expression of ORMDL3 as well as ORMDL3 regulated gene ATF6α expression. In addition, we demonstrate the use of CBE technology in functionally interrogating asthma-associated SNPs using studies of primary human CD4 cells.
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Affiliation(s)
- Ning Weng
- Department of Medicine University of California San Diego La Jolla California USA
| | - Marina Miller
- Department of Medicine University of California San Diego La Jolla California USA
| | - Alexa K. Pham
- Department of Medicine University of California San Diego La Jolla California USA
| | - Alexis C. Komor
- Department of Chemistry and Biochemistry University of California San Diego La Jolla California USA
| | - David H. Broide
- Department of Medicine University of California San Diego La Jolla California USA
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20
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Chen R, Michaeloudes C, Liang Y, Bhavsar PK, Chung KF, Ip MSM, Mak JCW. ORMDL3 regulates cigarette smoke-induced endoplasmic reticulum stress in airway smooth muscle cells. J Allergy Clin Immunol 2022; 149:1445-1457.e5. [PMID: 34624393 DOI: 10.1016/j.jaci.2021.09.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/19/2021] [Accepted: 09/29/2021] [Indexed: 01/12/2023]
Abstract
BACKGROUND Orosomucoid 1-like protein 3 (ORMDL3), a transmembrane protein localized in the endoplasmic reticulum (ER), has been genetically associated with chronic obstructive pulmonary disease (COPD), in addition to childhood-onset asthma. However, the functional role of ORMDL3 in the pathogenesis of COPD is still unknown. OBJECTIVE Because cigarette smoke is the major risk factor for COPD, we aimed to investigate the role of ORMDL3 in cigarette smoke-induced human airway smooth muscle cell (HASMC) injury. METHODS The mRNA and protein expression of ORMDL3 was examined in HASMCs from nonsmokers and smokers without or with COPD. Knockdown of ORMDL3 in primary healthy HASMCs was performed using small interfering RNA before exposure to cigarette smoke medium (CSM) for 24 hours. Inflammatory, proliferative/apoptotic, ER stress, and mitochondrial markers were evaluated. RESULTS Elevation of ORMDL3 mRNA and protein expression was observed in HASMCs of smokers without or with COPD. CSM caused significant upregulation of ORMDL3 expression in healthy nonsmokers. ORMDL3 knockdown regulated CSM-induced inflammation, cell proliferation, and apoptosis. Silencing ORMDL3 led to reduction of CSM-induced ER stress via inhibition of unfolded protein response pathways such as activating transcription factor 6 and protein kinase RNA-like ER kinase. ORMDL3 was also involved in CSM-induced mitochondrial dysfunction via the mitochondrial fission process. CONCLUSIONS We report the induction of ORMDL3 in HASMCs after cigarette smoke exposure. ORMDL3 may mediate cigarette smoke-induced activation of unfolded protein response pathways during airway smooth muscle cell injury.
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Affiliation(s)
- Rui Chen
- Department of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Charalambos Michaeloudes
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; Respiratory Medicine, The University of Hong Kong-Shenzhen Hospital Respiratory Division, Shenzhen, China
| | - Yingmin Liang
- Department of Medicine, The University of Hong Kong, Hong Kong SAR, China; Respiratory Medicine, The University of Hong Kong-Shenzhen Hospital Respiratory Division, Shenzhen, China
| | - Pankaj K Bhavsar
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; Respiratory Medicine, The University of Hong Kong-Shenzhen Hospital Respiratory Division, Shenzhen, China
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; Respiratory Medicine, The University of Hong Kong-Shenzhen Hospital Respiratory Division, Shenzhen, China
| | - Mary S M Ip
- Department of Medicine, The University of Hong Kong, Hong Kong SAR, China; Respiratory Medicine, The University of Hong Kong-Shenzhen Hospital Respiratory Division, Shenzhen, China
| | - Judith C W Mak
- Department of Medicine, The University of Hong Kong, Hong Kong SAR, China; Respiratory Medicine, The University of Hong Kong-Shenzhen Hospital Respiratory Division, Shenzhen, China; Department of Pharmacology & Pharmacy, The University of Hong Kong, Hong Kong SAR, China.
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21
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Targeting intercellular adhesion molecule-1 (ICAM-1) to reduce rhinovirus-induced acute exacerbations in chronic respiratory diseases. Inflammopharmacology 2022; 30:725-735. [PMID: 35316427 PMCID: PMC8938636 DOI: 10.1007/s10787-022-00968-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 02/24/2022] [Indexed: 01/21/2023]
Abstract
The chronic respiratory non-communicable diseases, asthma and chronic obstructive pulmonary disease (COPD) are among the leading causes of global mortality and morbidity. Individuals suffering from these diseases are particularly susceptible to respiratory infections caused by bacterial and/or viral pathogens, which frequently result in exacerbation of symptoms, lung function decline, frequent hospital emergency visits and increased socioeconomic burden. Human rhinoviruses (HRV) remain the major viral pathogen group implicated in exacerbations of both asthma and COPD. The rhinoviral entry into the host lung epithelium is facilitated primarily by the adhesion site (“receptor”) intercellular adhesion molecule-1 (ICAM-1), coincidentally expressed on the respiratory epithelium in these conditions. Multiple observations of increased airway ICAM-1 protein in asthmatics, smokers and smoking-related COPD have been recorded in the literature. However, the lack of robust therapies for COPD in particular has triggered a renewed interest in assessing receptor antagonism-based anti-viral strategies for treatment of intercurrent viral infections in those with pre-existing chronic lung diseases. Given the crucial role ICAM-1 plays in facilitating HRV adhesion and, thus, transmissibility to the host respiratory system, as well as the up-regulation of ICAM-1 by smoking, we summarize the role of HRV in smoking-induced COPD and especially highlight the role of ICAM-1 in epithelial viral adhesion and chronic lung disease progression. Further, the review also sheds light specifically on evolving precision therapeutic strategies in blocking ICAM-1 for preventing viral adhesion and exacerbations of COPD.
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22
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Worgall TS. Sphingolipids and Asthma. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1372:145-155. [DOI: 10.1007/978-981-19-0394-6_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Sasset L, Di Lorenzo A. Sphingolipid Metabolism and Signaling in Endothelial Cell Functions. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1372:87-117. [PMID: 35503177 DOI: 10.1007/978-981-19-0394-6_8] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The endothelium, inner layer of blood vessels, constitutes a metabolically active paracrine, endocrine, and autocrine organ, able to sense the neighboring environment and exert a variety of biological functions important to preserve the health of vasculature, tissues, and organs. Sphingolipids are both fundamental structural components of the eukaryotic membranes and signaling molecules regulating a variety of biological functions. Ceramide and sphingosine-1-phosphate (S1P), bioactive sphingolipids, have emerged as important regulators of cardiovascular functions in health and disease. In this review we discuss recent insights into the role of ceramide and S1P biosynthesis and signaling in regulating endothelial cell functions, in health and diseases. We also highlight advances into the mechanisms regulating serine palmitoyltransferase, the first and rate-limiting enzyme of de novo sphingolipid biosynthesis, with an emphasis on its inhibitors, ORMDL and NOGO-B. Understanding the molecular mechanisms regulating the sphingolipid de novo biosynthesis may provide the foundation for therapeutic modulation of this pathway in a variety of conditions, including cardiovascular diseases, associated with derangement of this pathway.
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Affiliation(s)
- Linda Sasset
- Department of Pathology and Laboratory Medicine, Cardiovascular Research Institute, Feil Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Annarita Di Lorenzo
- Department of Pathology and Laboratory Medicine, Cardiovascular Research Institute, Feil Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA.
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24
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Song Y, Zan W, Qin L, Han S, Ye L, Wang M, Jiang B, Fang P, Liu Q, Shao C, Gong Y, Li P. Ablation of ORMDL3 impairs adipose tissue thermogenesis and insulin sensitivity by increasing ceramide generation. Mol Metab 2021; 56:101423. [PMID: 34954108 PMCID: PMC8762460 DOI: 10.1016/j.molmet.2021.101423] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 11/25/2022] Open
Abstract
Objective Genome-wide association studies identified ORMDL3 as an obesity-related gene, and its expression was negatively correlated with body mass index. However, the precise biological roles of ORMDL3 in obesity and lipid metabolism remain uncharacterized. Here, we investigate the function of ORMDL3 in adipose tissue thermogenesis and high fat diet (HFD)-induced insulin resistance. Methods Ormdl3-deficient (Ormdl3−/−) mice were employed to delineate the function of ORMDL3 in brown adipose tissue (BAT) thermogenesis and white adipose tissue (WAT) browning. Glucose and lipid homeostasis in Ormdl3−/− mice fed a HFD were assessed. The lipid composition in adipose tissue was evaluated by mass spectrometry. Primary adipocytes in culture were used to determine the mechanism by which ORMDL3 regulates white adipose browning. Results BAT thermogenesis and WAT browning were significantly impaired in Ormdl3−/− mice upon cold exposure or administration with the β3 adrenergic agonist. In addition, compared to WT mice, Ormdl3−/− mice displayed increased weight gain and insulin resistance in response to HFD. The induction of uncoupling protein 1 (UCP1), a marker of thermogenesis, was attenuated in primary adipocytes derived from Ormdl3−/− mice. Importantly, ceramide levels were elevated in the adipose tissue of Ormdl3−/− mice. In addition, the reduction in thermogenesis and increase in body weight caused by Ormdl3 deficiency could be rescued by inhibiting the production of ceramides. Conclusion Our findings suggest that ORMDL3 contributes to the regulation of BAT thermogenesis, WAT browning, and insulin resistance. ORMDL3 is downregulated in WAT of obese mice and humans and upregulated in response to cold exposure. Loss of Ormdl3 in mice exacerbates the overall metabolic phenotypes caused by HFD-induced obesity. Ormdl3 ablation impairs BAT thermogenesis and WAT browning. Ormdl3 deficiency is sufficient for negatively regulating ceramide levels.
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Affiliation(s)
- Yu Song
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Wenying Zan
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Liping Qin
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Shuang Han
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Lili Ye
- Department of Special Examination, the Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, China
| | - Molin Wang
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Baichun Jiang
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Pan Fang
- Department of Biochemistry and Molecular Biology, Soochow University Medical College, Suzhou, Jiangsu 215123, China
| | - Qiji Liu
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Changshun Shao
- State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University Medical College, Suzhou, Jiangsu 215123, China
| | - Yaoqin Gong
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China.
| | - Peishan Li
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China; State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University Medical College, Suzhou, Jiangsu 215123, China.
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25
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Wasserman E, Gomi R, Sharma A, Hong S, Bareja R, Gu J, Balaji U, Veerappan A, Kim BI, Wu W, Heras A, Perez-Zoghbi J, Sung B, Gueye-Ndiaye S, Worgall TS, Worgall S. Human Rhinovirus Infection of the Respiratory Tract Affects Sphingolipid Synthesis. Am J Respir Cell Mol Biol 2021; 66:302-311. [PMID: 34851798 DOI: 10.1165/rcmb.2021-0443oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The 17q21 asthma susceptibility locus includes asthma risk alleles associated with decreased sphingolipid synthesis, likely resulting from increased expression of ORMDL3. ORMDL3 inhibits serine-palmitoyl transferase (SPT), the rate limiting enzyme of de novo sphingolipid synthesis. There is evidence that decreased sphingolipid synthesis is critical to asthma pathogenesis. Children with asthma and 17q21 asthma risk alleles display decreased sphingolipid synthesis in blood cells. Reduced SPT activity results in airway hyperreactivity, a hallmark feature of asthma. 17q21 asthma risk alleles are also linked to childhood infections with human rhinovirus (RV). This study evaluates the interaction of RV with the de novo sphingolipid synthesis pathway, and the alterative effects of concurrent SPT inhibition in SPT-deficient mice and human airway epithelial cells. In mice, RV infection shifted lung sphingolipid synthesis gene expression to a pattern that resembles genetic SPT deficiency, including decreased expression of Sptssa, a small SPT subunit. This pattern was pronounced in lung EpCAM+ epithelial cells and reproduced in human bronchial epithelial cells. RV did not affect Sptssa expression in lung CD45+ immune cells. RV increased sphingolipids unique to the de novo synthesis pathway in mouse lung and human airway epithelial cells. Interestingly, these de novo sphingolipid species were reduced in the blood of RV infected, wild-type mice. RV exacerbated SPT-deficiency-associated airway hyperreactivity. Airway inflammation was similar in RV-infected wild-type and SPT deficient mice. This study reveals the effects of RV infection on the de novo sphingolipid synthesis pathway, elucidating a potential mechanistic link between 17q21 asthma risk alleles and rhinoviral infection.
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Affiliation(s)
- Emily Wasserman
- Weill Cornell Medical College, 12295, Pediatrics, New York, New York, United States
| | - Rika Gomi
- Weill Cornell Medical College, 12295, Pediatrics, New York, New York, United States
| | - Anurag Sharma
- Weill Cornell Medical College, 12295, Pediatrics, New York, New York, United States
| | - Seunghee Hong
- Weill Cornell Medical College, 12295, Pediatrics, New York, New York, United States
| | - Rohan Bareja
- Weill Cornell Medical College, 12295, Precision Medicine, New York, New York, United States
| | - Jinghua Gu
- Weill Cornell Medical College, 12295, Pediatrics, New York, New York, United States
| | - Uthra Balaji
- Weill Cornell Medical College, 12295, Pediatrics, New York, New York, United States
| | - Arul Veerappan
- New York University, 5894, Medicine, New York, New York, United States
| | - Benjamin I Kim
- Columbia University, 5798, Pathology, New York, New York, United States
| | - Wenzhu Wu
- Weill Cornell Medical College, 12295, New York, New York, United States
| | - Andrea Heras
- Weill Cornell Medical College, 12295, Pediatrics , New York, New York, United States
| | - Jose Perez-Zoghbi
- Columbia University, 5798, Department of Anesthesiology , New York, New York, United States
| | - Biin Sung
- Weill Cornell Medical College, 12295, Pediatrics, New York, New York, United States
| | - Seyni Gueye-Ndiaye
- Weill Cornell Medical College, 12295, Pediatrics, New York, New York, United States
| | - Tilla S Worgall
- Columbia University Irving Medical Center, 21611, Dept. of Pathology, New York, New York, United States
| | - Stefan Worgall
- Weill Cornell Medical College, 12295, Pediatrics, New York, New York, United States;
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Crosstalk between ORMDL3, serine palmitoyltransferase, and 5-lipoxygenase in the sphingolipid and eicosanoid metabolic pathways. J Lipid Res 2021; 62:100121. [PMID: 34560079 PMCID: PMC8527048 DOI: 10.1016/j.jlr.2021.100121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/23/2021] [Accepted: 09/08/2021] [Indexed: 11/21/2022] Open
Abstract
Leukotrienes (LTs) and sphingolipids are critical lipid mediators participating in numerous cellular signal transduction events and developing various disorders, such as bronchial hyperactivity leading to asthma. Enzymatic reactions initiating production of these lipid mediators involve 5-lipoxygenase (5-LO)-mediated conversion of arachidonic acid to LTs and serine palmitoyltransferase (SPT)-mediated de novo synthesis of sphingolipids. Previous studies have shown that endoplasmic reticulum membrane protein ORM1-like protein 3 (ORMDL3) inhibits the activity of SPT and subsequent sphingolipid synthesis. However, the role of ORMDL3 in the synthesis of LTs is not known. In this study, we used peritoneal-derived mast cells isolated from ORMDL3 KO or control mice and examined their calcium mobilization, degranulation, NF-κB inhibitor-α phosphorylation, and TNF-α production. We found that peritoneal-derived mast cells with ORMDL3 KO exhibited increased responsiveness to antigen. Detailed lipid analysis showed that compared with WT cells, ORMDL3-deficient cells exhibited not only enhanced production of sphingolipids but also of LT signaling mediators LTB4, 6t-LTB4, LTC4, LTB5, and 6t-LTB5. The crosstalk between ORMDL3 and 5-LO metabolic pathways was supported by the finding that endogenous ORMDL3 and 5-LO are localized in similar endoplasmic reticulum domains in human mast cells and that ORMDL3 physically interacts with 5-LO. Further experiments showed that 5-LO also interacts with the long-chain 1 and long-chain 2 subunits of SPT. In agreement with these findings, 5-LO knockdown increased ceramide levels, and silencing of SPTLC1 decreased arachidonic acid metabolism to LTs to levels observed upon 5-LO knockdown. These results demonstrate functional crosstalk between the LT and sphingolipid metabolic pathways, leading to the production of lipid signaling mediators.
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Pathinayake PS, Waters DW, Nichol KS, Brown AC, Reid AT, Hsu ACY, Horvat JC, Wood LG, Baines KJ, Simpson JL, Gibson PG, Hansbro PM, Wark PAB. Endoplasmic reticulum-unfolded protein response signalling is altered in severe eosinophilic and neutrophilic asthma. Thorax 2021; 77:443-451. [PMID: 34510013 DOI: 10.1136/thoraxjnl-2020-215979] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 07/06/2021] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The significance of endoplasmic reticulum (ER) stress in asthma is unclear. Here, we demonstrate that ER stress and the unfolded protein response (UPR) are related to disease severity and inflammatory phenotype. METHODS Induced sputum (n=47), bronchial lavage (n=23) and endobronchial biopsies (n=40) were collected from participants with asthma with varying disease severity, inflammatory phenotypes and from healthy controls. Markers for ER stress and UPR were assessed. These markers were also assessed in established eosinophilic and neutrophilic murine models of asthma. RESULTS Our results demonstrate increased ER stress and UPR pathways in asthma and these are related to clinical severity and inflammatory phenotypes. Genes associated with ER protein chaperone (BiP, CANX, CALR), ER-associated protein degradation (EDEM1, DERL1) and ER stress-induced apoptosis (DDIT3, PPP1R15A) were dysregulated in participants with asthma and are associated with impaired lung function (forced expiratory volume in 1 s) and active eosinophilic and neutrophilic inflammation. ER stress genes also displayed a significant correlation with classic Th2 (interleukin-4, IL-4/13) genes, Th17 (IL-17F/CXCL1) genes, proinflammatory (IL-1b, tumour necrosis factor α, IL-8) genes and inflammasome activation (NLRP3) in sputum from asthmatic participants. Mice with allergic airway disease (AAD) and severe steroid insensitive AAD also showed increased ER stress signalling in their lungs. CONCLUSION Heightened ER stress is associated with severe eosinophilic and neutrophilic inflammation in asthma and may play a crucial role in the pathogenesis of asthma.
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Affiliation(s)
- Prabuddha S Pathinayake
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Medicine and Public Health, The University of Newcastle, Callaghan, New South Wales, Australia
| | - David W Waters
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Kristy S Nichol
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Medicine and Public Health, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Alexandra C Brown
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Andrew T Reid
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Alan Chen-Yu Hsu
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Medicine and Public Health, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Jay C Horvat
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Lisa G Wood
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Katherine J Baines
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Medicine and Public Health, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Jodie L Simpson
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Medicine and Public Health, The University of Newcastle, Callaghan, New South Wales, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Peter G Gibson
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Medicine and Public Health, The University of Newcastle, Callaghan, New South Wales, Australia.,Department of Respiratory and Sleep Medicine, John Hunter Hospital, New Lambton Heights, New South Wales, Australia.,NHMRC Centre for Clinical Research Excellence in Severe Asthma, New Lambton Heights, New South Wales, Australia
| | - Philip M Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, New South Wales, Australia.,Centre for Inflammation, Centenary Institute, and Faculty of Science, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Peter A B Wark
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and School of Medicine and Public Health, The University of Newcastle, Callaghan, New South Wales, Australia .,Department of Respiratory and Sleep Medicine, John Hunter Hospital, New Lambton Heights, New South Wales, Australia.,NHMRC Centre for Clinical Research Excellence in Severe Asthma, New Lambton Heights, New South Wales, Australia
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Zhang YM. Orosomucoid-like protein 3, rhinovirus and asthma. World J Crit Care Med 2021; 10:170-182. [PMID: 34616654 PMCID: PMC8462028 DOI: 10.5492/wjccm.v10.i5.170] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/16/2021] [Accepted: 08/23/2021] [Indexed: 02/06/2023] Open
Abstract
The genetic variants of orosomucoid-like protein 3 (ORMDL3) gene are associated with highly significant increases in the number of human rhinovirus (HRV)-induced wheezing episodes in children. Recent investigations have been focused on the mechanisms of ORMDL3 in rhinovirus infection for asthma and asthma exacerbations. ORMDL3 not only regulates major human rhinovirus receptor intercellular adhesion molecule 1 expression, but also plays pivotal roles in viral infection through metabolisms of ceramide and sphingosine-1-phosphate, endoplasmic reticulum (ER) stress, ER-Golgi interface and glycolysis. Research on the roles of ORMDL3 in HRV infection will lead us to identify new biomarkers and novel therapeutic targets in childhood asthma and viral induced asthma exacerbations.
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Affiliation(s)
- You-Ming Zhang
- Section of Genomic and Environmental Medicine, National Heart and Lung Institute, Molecular Genetics Group, Division of Respiratory Sciences, Imperial College London, London SW3 6LY, United Kingdom
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Ogi K, Takabayashi T, Tomita K, Sakashita M, Morikawa T, Ninomiya T, Okamoto M, Narita N, Fujieda S. ORMDL3 overexpression facilitates FcεRI-mediated transcription of proinflammatory cytokines and thapsigargin-mediated PERK phosphorylation in RBL-2H3 cells. IMMUNITY INFLAMMATION AND DISEASE 2021; 9:1394-1405. [PMID: 34288557 PMCID: PMC8589398 DOI: 10.1002/iid3.489] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 07/01/2021] [Accepted: 07/05/2021] [Indexed: 12/29/2022]
Abstract
Introduction The chromosomal region 17q21 harbors the human orosomucoid‐like 3 (ORMDL3) gene and has been linked to asthma and other inflammatory diseases. ORMDL3 is involved in the unfolded protein response (UPR), lipid metabolism, and inflammatory reactions. We investigated the effects of ORMDL3 overexpression in RBL‐2H3 cells to determine the contribution of ORMDL3 to inflammatory disease development. Methods We generated ORMDL3 stably overexpressing RBL‐2H3 cells to assess degranulation, transcriptional upregulation of interleukin‐4 (IL‐4), tumor necrosis factor‐α (TNF‐α), monocyte chemoattractant protein‐1 (MCP‐1), and mitogen‐activated protein kinase (MAPK) phosphorylation via FcεRI. In addition, we examined the effects of ORMDL3 overexpression on thapsigargin (TG)‐mediated proinflammatory cytokine transcription and UPR by monitoring MAPK, protein kinase‐like endoplasmic reticulum kinase (PERK), and inositol‐requiring enzyme 1 (IRE1) phosphorylation. Results Overexpression of ORMDL3 enhanced IL‐4, TNF‐α, and MCP‐1 expression after FcεRI cross‐linking, whereas the sphingosine‐1‐phosphate (S1P) agonist FTY720 suppressed this enhancement. There was no significant difference in degranulation and MAPK phosphorylation via FcεRI‐mediated activation between vector‐transfected and ORMDL3‐overexpressing cells. ORMDL3 overexpression accelerated TG‐mediated PERK phosphorylation, while MAPK phosphorylation and proinflammatory cytokine expression showed no significant changes in ORMDL3‐overexpressing cells. Conclusions Our findings suggest that ORMDL3 plays an important role in regulating proinflammatory cytokine expression via the S1P pathway and selectively affects the UPR pathway in mast cells.
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Affiliation(s)
- Kazuhiro Ogi
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Tetsuji Takabayashi
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Kaori Tomita
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Masafumi Sakashita
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Taiyo Morikawa
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Takahiro Ninomiya
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Masayuki Okamoto
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Norihiko Narita
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Shigeharu Fujieda
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Sensory and Locomotor Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
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Wang Q, Liu W, Chen S, Luo Q, Li Y, Peng S, Wang H, Liu X, Chen D. ORMDL1 is upregulated and associated with favorable outcomes in colorectal cancer. Transl Oncol 2021; 14:101171. [PMID: 34243012 PMCID: PMC8273222 DOI: 10.1016/j.tranon.2021.101171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 06/12/2021] [Accepted: 06/30/2021] [Indexed: 12/24/2022] Open
Abstract
The association between ORMDL1 expression and clinipathological characteristic in colorectal cancer (CRC) has not been reported before, which is addressed in this study. Although ORMDL1 is generally upregulated in CRC, high expression of ORMDL1 is associated with longer survival; the combination of ORMDL1 expression and other biomarkers to stratify and predict prognosis in CRC is worth to explore. ORMDL1 seems to influence cell cytoskeleton dynamics through Rho GTPase, other than canonical EMT related transcription factors.
Background The ORMDL1 gene is known as a crucial negative regulator of sphingolipid biogenesis. However, the ORMDL1 gene has rarely been studied in a tumor-related context. Therefore, its prognostic value and functional significance in colorectal cancer (CRC) remain to be explored. Methods TCGA CRC cohort analysis, qRT-PCR, and immunohistochemistry (IHC) were used to examine the ORMDL1 expression level. The association between ORMDL1 expression and various clinical characteristics was analyzed by chi-square tests. The overall survival (OS) of CRC patients was analyzed by Kaplan-Meier analysis. In vitro and in vivo cell-based assays were performed to explore the role of ORMDL1 in cell proliferation, invasion and migration. Transcriptional changes in cells with either ORMDL1 knockdown or overexpression were compared and analyzed. Results ORMDL1 was upregulated in CRC tissues in both the TCGA and our cohort. Interestingly, its expression was significantly lower in patients with metastasis than in patients without metastasis, and the high expression group had longer OS than the low expression group. Knockdown of ORMDL1 expression can promote proliferation, colony formation and invasion, while attenuating migration in CRC cell lines. In contrast, forced overexpression of ORMDL1 reduced cell proliferation, colony formation and invasion, while enhancing cell migration. Stable knockdown of ORMDL1 can promote cancer cell proliferation in vivo to some extent. Finally, Rho GTPase activity was influenced by ORMDL1, and the expression of ORMDL1 was enhanced by DTT treatment. Conclusion ORMDL1 is upregulated and may serve as a biomarker to predict favourable outcomes in colorectal cancer.
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Affiliation(s)
- Qian Wang
- Guangdong Institute of Gastroenterology, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China
| | - Wanjun Liu
- Guangdong Institute of Gastroenterology, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China
| | - Si Chen
- Guangdong Institute of Gastroenterology, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China
| | - Qianxin Luo
- Guangdong Institute of Gastroenterology, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China; Department of Intensive Care Unit, The Sixth Affiliated Hospital, Sun Yat-sen University, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China
| | - Yichen Li
- Guangdong Institute of Gastroenterology, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China
| | - Shaoyong Peng
- Guangdong Institute of Gastroenterology, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China
| | - Huaiming Wang
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China
| | - Xiaoxia Liu
- Guangdong Institute of Gastroenterology, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China
| | - Daici Chen
- Guangdong Institute of Gastroenterology, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China; Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China; Department of Clinical Laboratory, The Sixth Affiliated Hospital, Sun Yat-sen University, 26 Yuancun Er Heng Road, Guangzhou, Guangdong 510655, China.
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31
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Nakada EM, Sun R, Fujii U, Martin JG. The Impact of Endoplasmic Reticulum-Associated Protein Modifications, Folding and Degradation on Lung Structure and Function. Front Physiol 2021; 12:665622. [PMID: 34122136 PMCID: PMC8188853 DOI: 10.3389/fphys.2021.665622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/23/2021] [Indexed: 12/15/2022] Open
Abstract
The accumulation of unfolded/misfolded proteins in the endoplasmic reticulum (ER) causes ER stress and induces the unfolded protein response (UPR) and other mechanisms to restore ER homeostasis, including translational shutdown, increased targeting of mRNAs for degradation by the IRE1-dependent decay pathway, selective translation of proteins that contribute to the protein folding capacity of the ER, and activation of the ER-associated degradation machinery. When ER stress is excessive or prolonged and these mechanisms fail to restore proteostasis, the UPR triggers the cell to undergo apoptosis. This review also examines the overlooked role of post-translational modifications and their roles in protein processing and effects on ER stress and the UPR. Finally, these effects are examined in the context of lung structure, function, and disease.
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Affiliation(s)
- Emily M. Nakada
- Meakins-Christie Laboratories, Research Institute of the McGill University Health Centre (RI-MUHC), McGill University, Montreal, QC, Canada
- McGill University, Montreal, QC, Canada
| | - Rui Sun
- Meakins-Christie Laboratories, Research Institute of the McGill University Health Centre (RI-MUHC), McGill University, Montreal, QC, Canada
- McGill University, Montreal, QC, Canada
| | - Utako Fujii
- Meakins-Christie Laboratories, Research Institute of the McGill University Health Centre (RI-MUHC), McGill University, Montreal, QC, Canada
- McGill University, Montreal, QC, Canada
| | - James G. Martin
- Meakins-Christie Laboratories, Research Institute of the McGill University Health Centre (RI-MUHC), McGill University, Montreal, QC, Canada
- McGill University, Montreal, QC, Canada
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Karunas AS, Fedorova YY, Gimalova GF, Etkina EI, Khusnutdinova EK. Association of Gasdermin B Gene GSDMB Polymorphisms with Risk of Allergic Diseases. Biochem Genet 2021; 59:1527-1543. [PMID: 33963941 DOI: 10.1007/s10528-021-10073-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 04/22/2021] [Indexed: 01/05/2023]
Abstract
The GSDMB gene encodes gasdermin B from the family of gasdermin domain-containing proteins involved in various cellular processes related to tumor development and progression, such as differentiation, cell cycle control and apoptosis. Previously, we conducted GWAS on asthma in the Volga-Ural region of Russia and found SNPs associated with asthma with genome-wide significance (rs9303277, rs8067378, rs2290400, rs7216389, rs4795405) and located in the chromosomal region 17q12-q21, which contains IKZF3 (IKAROS family zinc finger 3), ZPBP2 (zona pellucida binding protein-like), GSDMB (gasdermin B), ORMDL3 (orosomucoid 1-like 3) and LRRC3C (leucine-rich repeat-containing 3C) genes. In the present study, we investigated the association of SNPs of the GSDMB gene with the development of various allergic diseases and their combined manifestations in individuals of Russian, Tatar and Bashkir ethnic origin. Our results revealed that polymorphic variants rs7216389, rs2290400 and rs2305480 are associated with the development of allergic diseases as well as with asthma and asthma combined with allergic rhinitis. We did not reveal the association of rs7216389 and rs2290400 with the development of allergic rhinitis and atopic dermatitis in the groups of patients without asthma symptoms. This may reflect a more important role of these SNPs in the development of asthma.
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Affiliation(s)
- Alexandra S Karunas
- Institute of Biochemistry and Genetics, Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russia. .,Saint Petersburg State University, Saint Petersburg, Russia. .,Bashkir State Medical University of the Ministry of Healthcare of the Russian Federation, Ufa, Russia.
| | - Yuliya Yu Fedorova
- Institute of Biochemistry and Genetics, Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russia. .,Saint Petersburg State University, Saint Petersburg, Russia.
| | - Galiya F Gimalova
- Institute of Biochemistry and Genetics, Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russia.,Saint Petersburg State University, Saint Petersburg, Russia
| | - Esfir I Etkina
- Bashkir State Medical University of the Ministry of Healthcare of the Russian Federation, Ufa, Russia
| | - Elza K Khusnutdinova
- Institute of Biochemistry and Genetics, Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russia.,Saint Petersburg State University, Saint Petersburg, Russia.,Bashkir State University, Ufa, Russia
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33
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James BN, Oyeniran C, Sturgill JL, Newton J, Martin RK, Bieberich E, Weigel C, Maczis MA, Palladino END, Lownik JC, Trudeau JB, Cook-Mills JM, Wenzel S, Milstien S, Spiegel S. Ceramide in apoptosis and oxidative stress in allergic inflammation and asthma. J Allergy Clin Immunol 2021; 147:1936-1948.e9. [PMID: 33130063 PMCID: PMC8081742 DOI: 10.1016/j.jaci.2020.10.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 09/29/2020] [Accepted: 10/02/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Nothing is known about the mechanisms by which increased ceramide levels in the lung contribute to allergic responses and asthma severity. OBJECTIVE We sought to investigate the functional role of ceramide in mouse models of allergic airway disease that recapitulate the cardinal clinical features of human allergic asthma. METHODS Allergic airway disease was induced in mice by repeated intranasal administration of house dust mite or the fungal allergen Alternaria alternata. Processes that can be regulated by ceramide and are important for severity of allergic asthma were correlated with ceramide levels measured by mass spectrometry. RESULTS Both allergens induced massive pulmonary apoptosis and also significantly increased reactive oxygen species in the lung. Prevention of increases in lung ceramide levels mitigated allergen-induced apoptosis, reactive oxygen species, and neutrophil infiltration. In contrast, dietary supplementation of the antioxidant α-tocopherol decreased reactive oxygen species but had no significant effects on elevation of ceramide level or apoptosis, indicating that the increases in lung ceramide levels in allergen-challenged mice are not mediated by oxidative stress. Moreover, specific ceramide species were altered in bronchoalveolar lavage fluid from patients with severe asthma compared with in bronchoalveolar lavage fluid from individuals without asthma. CONCLUSION Our data suggest that elevation of ceramide level after allergen challenge contributes to the apoptosis, reactive oxygen species generation, and neutrophilic infiltrate that characterize the severe asthmatic phenotype. Ceramide might be the trigger of formation of Creola bodies found in the sputum of patients with severe asthma and could be a biomarker to optimize diagnosis and to monitor and improve clinical outcomes in this disease.
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Affiliation(s)
- Briana N James
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Clement Oyeniran
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Jamie L Sturgill
- Department of Internal Medicine, Division of Pulmonary, Critical Care, and Sleep Medicine, University of Kentucky College of Medicine, Lexington, Ky
| | - Jason Newton
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Rebecca K Martin
- Department of Microbiology and Immunology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Erhard Bieberich
- Department of Physiology, University of Kentucky College of Medicine, Lexington, Ky
| | - Cynthia Weigel
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Melissa A Maczis
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Elisa N D Palladino
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Joseph C Lownik
- Department of Microbiology and Immunology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - John B Trudeau
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Joan M Cook-Mills
- Department of Pediatrics, Herman B. Wells Center for Pediatric Research, Indiana School of Medicine, Indianapolis, Ind
| | - Sally Wenzel
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Sheldon Milstien
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Sarah Spiegel
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, Va.
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Green CD, Weigel C, Oyeniran C, James BN, Davis D, Mahawar U, Newton J, Wattenberg BW, Maceyka M, Spiegel S. CRISPR/Cas9 deletion of ORMDLs reveals complexity in sphingolipid metabolism. J Lipid Res 2021; 62:100082. [PMID: 33939982 PMCID: PMC8167824 DOI: 10.1016/j.jlr.2021.100082] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 04/16/2021] [Indexed: 12/26/2022] Open
Abstract
The serine palmitoyltransferase (SPT) complex catalyzes the rate-limiting step in the de novo biosynthesis of ceramides, the precursors of sphingolipids. The mammalian ORMDL isoforms (ORMDL1-3) are negative regulators of SPT. However, the roles of individual ORMDL isoforms are unclear. Using siRNA against individual ORMDLs, only single siORMDL3 had modest effects on dihydroceramide and ceramide levels, whereas downregulation of all three ORMDLs induced more pronounced increases. With the CRISPR/Cas9-based genome-editing strategy, we established stable single ORMDL3 KO (ORMDL3-KO) and ORMDL1/2/3 triple-KO (ORMDL-TKO) cell lines to further understand the roles of ORMDL proteins in sphingolipid biosynthesis. While ORMDL3-KO modestly increased dihydroceramide and ceramide levels, ORMDL-TKO cells had dramatic increases in the accumulation of these sphingolipid precursors. SPT activity was increased only in ORMDL-TKO cells. In addition, ORMDL-TKO but not ORMDL3-KO dramatically increased levels of galactosylceramides, glucosylceramides, and lactosylceramides, the elevated N-acyl chain distributions of which broadly correlated with the increases in ceramide species. Surprisingly, although C16:0 is the major sphingomyelin species, it was only increased in ORMDL3-KO, whereas all other N-acyl chain sphingomyelin species were significantly increased in ORMDL-TKO cells. Analysis of sphingoid bases revealed that although sphingosine was only increased 2-fold in ORMDL-TKO cells, levels of dihydrosphingosine, dihydrosphingosine-1-phosphate, and sphingosine-1-phosphate were hugely increased in ORMDL-TKO cells and not in ORMDL3-KO cells. Thus, ORMDL proteins may have a complex, multifaceted role in the biosynthesis and regulation of cellular sphingolipids.
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Affiliation(s)
- Christopher D Green
- Department of Biochemistry and Molecular Biology, VCU School of Medicine, Richmond, VA, USA
| | - Cynthia Weigel
- Department of Biochemistry and Molecular Biology, VCU School of Medicine, Richmond, VA, USA
| | - Clement Oyeniran
- Department of Biochemistry and Molecular Biology, VCU School of Medicine, Richmond, VA, USA
| | - Briana N James
- Department of Biochemistry and Molecular Biology, VCU School of Medicine, Richmond, VA, USA
| | - Deanna Davis
- Department of Biochemistry and Molecular Biology, VCU School of Medicine, Richmond, VA, USA
| | - Usha Mahawar
- Department of Biochemistry and Molecular Biology, VCU School of Medicine, Richmond, VA, USA
| | - Jason Newton
- Department of Biochemistry and Molecular Biology, VCU School of Medicine, Richmond, VA, USA
| | - Binks W Wattenberg
- Department of Biochemistry and Molecular Biology, VCU School of Medicine, Richmond, VA, USA
| | - Michael Maceyka
- Department of Biochemistry and Molecular Biology, VCU School of Medicine, Richmond, VA, USA
| | - Sarah Spiegel
- Department of Biochemistry and Molecular Biology, VCU School of Medicine, Richmond, VA, USA.
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Pham AK, Miller M, Rosenthal P, Das S, Weng N, Jang S, Kurten RC, Badrani J, Doherty TA, Oliver B, Broide DH. ORMDL3 expression in ASM regulates hypertrophy, hyperplasia via TPM1 and TPM4, and contractility. JCI Insight 2021; 6:136911. [PMID: 33661765 PMCID: PMC8119187 DOI: 10.1172/jci.insight.136911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 02/26/2021] [Indexed: 12/21/2022] Open
Abstract
ORM1-like 3 (ORMDL3) has strong genetic linkage to childhood onset asthma. To determine whether ORMDL3 selective expression in airway smooth muscle (ASM) influences ASM function, we used Cre-loxP techniques to generate transgenic mice (hORMDL3Myh11eGFP-cre), which express human ORMDL3 selectively in smooth muscle cells. In vitro studies of ASM cells isolated from the bronchi of hORMDL3Myh11eGFP-cre mice demonstrated that they developed hypertrophy (quantitated by FACS and image analysis), developed hyperplasia (assessed by BrdU incorporation), and expressed increased levels of tropomysin proteins TPM1 and TPM4. siRNA knockdown of TPM1 or TPM4 demonstrated their importance to ORMDL3-mediated ASM proliferation but not hypertrophy. In addition, ASM derived from hORMDL3Myh11eGFP-cre mice had increased contractility to histamine in vitro, which was associated with increased levels of intracellular Ca2+; increased cell surface membrane Orai1 Ca2+ channels, which mediate influx of Ca2+ into the cytoplasm; and increased expression of ASM contractile genes sarco/endoplasmic reticulum Ca2+ ATPase 2b and smooth muscle 22. In vivo studies of hORMDL3Myh11eGFP-cre mice demonstrated that they had a spontaneous increase in ASM and airway hyperreactivity (AHR). ORMDL3 expression in ASM thus induces changes in ASM (hypertrophy, hyperplasia, increased contractility), which may explain the contribution of ORMDL3 to the development of AHR in childhood onset asthma, which is highly linked to ORMDL3 on chromosome 17q12-21.
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Affiliation(s)
- Alexa K. Pham
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Marina Miller
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Peter Rosenthal
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Sudipta Das
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Ning Weng
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Sunghoon Jang
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Richard C. Kurten
- Department of Pediatrics, Arkansas Children’s Research Institute, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Jana Badrani
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Taylor A. Doherty
- Department of Medicine, University of California San Diego, La Jolla, California, USA
- Veterans Affairs San Diego Health Care System, La Jolla, California, USA
| | - Brian Oliver
- School of Life Sciences, University of Technology Sydney, Sydney, Australia
| | - David H. Broide
- Department of Medicine, University of California San Diego, La Jolla, California, USA
- School of Life Sciences, University of Technology Sydney, Sydney, Australia
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Ono JG, Worgall S. More Evidence for Inborn Dysregulation of Sphingolipid Metabolism in Children with Asthma? Am J Respir Crit Care Med 2021; 203:792-793. [PMID: 33617753 PMCID: PMC8017576 DOI: 10.1164/rccm.202102-0419ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Jennie G Ono
- Department of Pediatrics Weill Cornell Medicine New York, New York
| | - Stefan Worgall
- Department of Pediatrics Department of Genetic Medicine and.,Drukier Institute for Children's Health Weill Cornell Medicine New York, New York
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Zhang Y, Hua L, Liu QH, Chu SY, Gan YX, Wu M, Bao YX, Chen Q, Zhang J. Household mold exposure interacts with inflammation-related genetic variants on childhood asthma: a case-control study. BMC Pulm Med 2021; 21:114. [PMID: 33810791 PMCID: PMC8019181 DOI: 10.1186/s12890-021-01484-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/24/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A number of studies have examined the association between mold exposure and childhood asthma. However, the conclusions were inconsistent, which might be partly attributable to the lack of consideration of gene function, especially the key genes affecting the pathogenesis of childhood asthma. Research on the interactions between genes and mold exposure on childhood asthma is still very limited. We therefore examined whether there is an interaction between inflammation-related genes and mold exposure on childhood asthma. METHODS A case-control study with 645 asthmatic children and 910 non-asthmatic children aged 3-12 years old was conducted. Eight single nucleotide polymorphisms (SNPs) in inflammation-related genes were genotyped using MassARRAY assay. Mold exposure was defined as self-reported visible mold on the walls. Associations between visible mold exposure, SNPs and childhood asthma were evaluated using logistic regression models. In addition, crossover analyses were used to estimate the gene-environment interactions on childhood asthma on an additive scale. RESULTS After excluding children without information on visible mold exposure or SNPs, 608 asthmatic and 839 non-asthmatic children were included in the analyses. Visible mold exposure was reported in 151 asthmatic (24.8%) and 119 non-asthmatic children (14.2%) (aOR 2.19, 95% CI 1.62-2.97). The rs7216389 SNP in gasdermin B gene (GSDMB) increased the risk of childhood asthma with each C to T substitution in a dose-dependent pattern (additive model, aOR 1.32, 95% CI 1.11-1.57). Children carrying the rs7216389 T allele and exposed to visible mold dramatically increased the risk of childhood asthma (aOR 3.21; 95% CI 1.77-5.99). The attributable proportion due to the interaction (AP: 0.47, 95% CI 0.03-0.90) and the relative excess risk due to the interaction (RERI: 1.49, 95% CI 0-2.99) were statistically significant. CONCLUSIONS In the present study, there was a significant additive interaction between visible mold exposure and rs7216389 SNP on childhood asthma. Future studies need to consider the gene-environment interactions when exploring the risk factors of childhood asthma.
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Affiliation(s)
- Yu Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Li Hua
- Department of Pediatric Pulmonology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Quan-Hua Liu
- Department of Pediatric Pulmonology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Shu-Yuan Chu
- Laboratory of Respiratory Disease, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi, China
| | - Yue-Xin Gan
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Min Wu
- Department of Chinese Traditional Medicine, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Yi-Xiao Bao
- Department of Pediatric Pulmonology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Qian Chen
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China.
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China. .,Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China.
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Li J, Ullah MA, Jin H, Liang Y, Lin L, Wang J, Peng X, Liao H, Li Y, Ge Y, Li L. ORMDL3 Functions as a Negative Regulator of Antigen-Mediated Mast Cell Activation via an ATF6-UPR-Autophagy-Dependent Pathway. Front Immunol 2021; 12:604974. [PMID: 33679742 PMCID: PMC7933793 DOI: 10.3389/fimmu.2021.604974] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/05/2021] [Indexed: 12/12/2022] Open
Abstract
Antigen (Ag)-mediated mast cell activation plays a critical role in the immunopathology of IgE-dependent allergic diseases. Restraining the signaling cascade that regulates the release of mast cell-derived inflammatory mediators is an attractive therapeutic strategy to treat allergic diseases. Orosomucoid-like-3 (ORMDL3) regulates the endoplasmic reticulum stress (ERS)-induced unfolded protein response (UPR) and autophagy. Although ERS/UPR/autophagy pathway is crucial in Ag-induced mast cell activation, it is unknown whether ORMDL3 regulates the ERS/UPR/autophagy pathway during mast cell activation. In this study, we found that ORMDL3 expression was downregulated in Ag-activated MC/9 cells. Overexpression of ORMDL3 significantly inhibited degranulation, and cytokine/chemokine production, while the opposite effect was observed with ORMDL3 knockdown in MC/9 cells. Importantly, ORMDL3 overexpression upregulated mediators of ERS-UPR (SERCA2b, ATF6) and autophagy (Beclin 1 and LC3BII). Knockdown of ATF6 and/or inhibition of autophagy reversed the decreased degranulation and cytokine/chemokine expression caused by ORMDL3 overexpression. Moreover, in vivo knockdown of ORMDL3 and/or ATF6 enhanced passive cutaneous anaphylaxis (PCA) reactions in mouse ears. These data indicate that ORMDL3 suppresses Ag-mediated mast cell activation via an ATF6 UPR-autophagy dependent pathway and thus, attenuates anaphylactic reaction. This highlights a potential mechanism to intervene in mast cell mediated diseases.
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Affiliation(s)
- Jia Li
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Md Ashik Ullah
- Respiratory Immunology Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Hongping Jin
- Department of Cell and Molecular Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Yuting Liang
- Center of Clinical Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lihui Lin
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Juan Wang
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xia Peng
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huanjin Liao
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanning Li
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiqin Ge
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Li
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Raby BA, Weiss ST. Diversity and the Splice of Life: Mapping the 17q12-21.1 Locus for Variants Associated with Early-Onset Asthma in African American Individuals. Am J Respir Crit Care Med 2021; 203:401-403. [PMID: 33108222 PMCID: PMC7885835 DOI: 10.1164/rccm.202010-3802ed] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Benjamin A Raby
- Department of Pediatrics Boston Children's Hospital and Harvard Medical School Boston, Massachusetts and
- Department of Medicine Brigham and Women's Hospital and Harvard Medical School Boston, Massachusetts
| | - Scott T Weiss
- Department of Medicine Brigham and Women's Hospital and Harvard Medical School Boston, Massachusetts
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40
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Bugajev V, Halova I, Demkova L, Cernohouzova S, Vavrova P, Mrkacek M, Utekal P, Draberova L, Kuchar L, Schuster B, Draber P. ORMDL2 Deficiency Potentiates the ORMDL3-Dependent Changes in Mast Cell Signaling. Front Immunol 2021; 11:591975. [PMID: 33643282 PMCID: PMC7905224 DOI: 10.3389/fimmu.2020.591975] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 12/29/2020] [Indexed: 12/24/2022] Open
Abstract
The systemic anaphylactic reaction is a life-threatening allergic response initiated by activated mast cells. Sphingolipids are an essential player in the development and attenuation of this response. De novo synthesis of sphingolipids in mammalian cells is inhibited by the family of three ORMDL proteins (ORMDL1, 2, and 3). However, the cell and tissue-specific functions of ORMDL proteins in mast cell signaling are poorly understood. This study aimed to determine cross-talk of ORMDL2 and ORMDL3 proteins in IgE-mediated responses. To this end, we prepared mice with whole-body knockout (KO) of Ormdl2 and/or Ormdl3 genes and studied their role in mast cell-dependent activation events in vitro and in vivo. We found that the absence of ORMDL3 in bone marrow-derived mast cells (BMMCs) increased the levels of cellular sphingolipids. Such an increase was further raised by simultaneous ORMDL2 deficiency, which alone had no effect on sphingolipid levels. Cells with double ORMDL2 and ORMDL3 KO exhibited increased intracellular levels of sphingosine-1-phosphate (S1P). Furthermore, we found that concurrent ORMDL2 and ORMDL3 deficiency increased IκB-α phosphorylation, degranulation, and production of IL-4, IL-6, and TNF-α cytokines in antigen-activated mast cells. Interestingly, the chemotaxis towards antigen was increased in all mutant cell types analyzed. Experiments in vivo showed that passive cutaneous anaphylaxis (PCA), which is initiated by mast cell activation, was increased only in ORMDL2,3 double KO mice, supporting our in vitro observations with mast cells. On the other hand, ORMDL3 KO and ORMDL2,3 double KO mice showed faster recovery from passive systemic anaphylaxis, which could be mediated by increased levels of blood S1P presented in such mice. Our findings demonstrate that Ormdl2 deficiency potentiates the ORMDL3-dependent changes in mast cell signaling.
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Affiliation(s)
- Viktor Bugajev
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Ivana Halova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Livia Demkova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Sara Cernohouzova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Petra Vavrova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Michal Mrkacek
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Pavol Utekal
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Lubica Draberova
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Ladislav Kuchar
- Research Unit for Rare Diseases, Department of Pediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czechia
| | - Björn Schuster
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
| | - Petr Draber
- Department of Signal Transduction, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czechia
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Bradley KL, Stokes CA, Marciniak SJ, Parker LC, Condliffe AM. Role of unfolded proteins in lung disease. Thorax 2021; 76:92-99. [PMID: 33077618 PMCID: PMC7803888 DOI: 10.1136/thoraxjnl-2019-213738] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 09/18/2020] [Accepted: 09/20/2020] [Indexed: 01/01/2023]
Abstract
The lungs are exposed to a range of environmental toxins (including cigarette smoke, air pollution, asbestos) and pathogens (bacterial, viral and fungal), and most respiratory diseases are associated with local or systemic hypoxia. All of these adverse factors can trigger endoplasmic reticulum (ER) stress. The ER is a key intracellular site for synthesis of secretory and membrane proteins, regulating their folding, assembly into complexes, transport and degradation. Accumulation of misfolded proteins within the lumen results in ER stress, which activates the unfolded protein response (UPR). Effectors of the UPR temporarily reduce protein synthesis, while enhancing degradation of misfolded proteins and increasing the folding capacity of the ER. If successful, homeostasis is restored and protein synthesis resumes, but if ER stress persists, cell death pathways are activated. ER stress and the resulting UPR occur in a range of pulmonary insults and the outcome plays an important role in many respiratory diseases. The UPR is triggered in the airway of patients with several respiratory diseases and in corresponding experimental models. ER stress has been implicated in the initiation and progression of pulmonary fibrosis, and evidence is accumulating suggesting that ER stress occurs in obstructive lung diseases (particularly in asthma), in pulmonary infections (some viral infections and in the setting of the cystic fibrosis airway) and in lung cancer. While a number of small molecule inhibitors have been used to interrogate the role of the UPR in disease models, many of these tools have complex and off-target effects, hence additional evidence (eg, from genetic manipulation) may be required to support conclusions based on the impact of such pharmacological agents. Aberrant activation of the UPR may be linked to disease pathogenesis and progression, but at present, our understanding of the context-specific and disease-specific mechanisms linking these processes is incomplete. Despite this, the ability of the UPR to defend against ER stress and influence a range of respiratory diseases is becoming increasingly evident, and the UPR is therefore attracting attention as a prospective target for therapeutic intervention strategies.
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Affiliation(s)
- Kirsty L Bradley
- Department of Infection, Immunity and Cardiovascular Diseases, The University of Sheffield, Sheffield, UK
| | - Clare A Stokes
- Department of Infection, Immunity and Cardiovascular Diseases, The University of Sheffield, Sheffield, UK
| | | | - Lisa C Parker
- Department of Infection, Immunity and Cardiovascular Diseases, The University of Sheffield, Sheffield, UK
| | - Alison M Condliffe
- Department of Infection, Immunity and Cardiovascular Diseases, The University of Sheffield, Sheffield, UK
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Ding Z, Yu F, Sun Y, Jiao N, Shi L, Wan J, Liu Q. ORMDL3 Promotes Angiogenesis in Chronic Asthma Through the ERK1/2/VEGF/MMP-9 Pathway. Front Pediatr 2021; 9:708555. [PMID: 35252072 PMCID: PMC8888883 DOI: 10.3389/fped.2021.708555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 12/09/2021] [Indexed: 11/13/2022] Open
Abstract
AIM Angiogenesis plays a vital role in airway remodeling in chronic asthma. ORMDL3 has been identified to be closely associated with the development of asthma remodeling. This study was to investigate the mechanism of ORMDL3 in angiogenesis of chronic asthma. METHODS BALB/c mice were divided into three groups, including an asthmatic group (group A), a budesonide-treated group (group B), and a normal control group (group C). Hematoxylin and eosin and Masson staining were used to evaluate the pathological changes. Angiogenesis in lung tissue was examined by CD31 staining. The changes of ORMDL3, ERK1/2, and angiogenesis-associated MMP-9 and Vascular endothelial growth factor (VEGF) expression were examined. Furthermore, ORMDL3, MMP-9, and VEGF mRNA and protein levels were examined after transfection in BEAS-2B cells with the ORMDL3-overexpressed lentiviral vector. RESULTS Compared with the control group, asthmatic mice indicated more severe airway angiogenesis with increased ORMDL3, ERK1/2, MMP-9, and VEGF expression. Budesonide alleviated airway angiogenesis, and CD31 expression was positive with the levels of ORMDL3, MMP-9, and VEGF (P < 0.01). After successful transfection in BEAS-2B cells with the ORMDL3-overexpressing lentiviral vector, VEGF, and MMP-9 expression were activated in vitro (P < 0.01). CONCLUSION In conclusion, our study provides novel evidence that ORMDL3 promotes angiogenesis through upregulating VEGF and MMP-9 in chronic asthma.
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Affiliation(s)
- Zhen Ding
- Department of Pediatrics, Zibo Hospital of Traditional Chinese Medicine, Zibo, China
| | - Fei Yu
- Department of Pediatrics, Zibo Hospital of Traditional Chinese Medicine, Zibo, China
| | - Yan Sun
- Department of Pediatrics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Ning Jiao
- Department of Pediatrics, Zibo Hospital of Traditional Chinese Medicine, Zibo, China
| | - Lina Shi
- Department of Pediatrics, Zibo Hospital of Traditional Chinese Medicine, Zibo, China
| | - Jinghong Wan
- Department of Pediatrics, Zibo Hospital of Traditional Chinese Medicine, Zibo, China
| | - Qinghua Liu
- Department of Pediatrics, Zibo Hospital of Traditional Chinese Medicine, Zibo, China
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43
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Alsharairi NA. The Role of Short-Chain Fatty Acids in the Interplay between a Very Low-Calorie Ketogenic Diet and the Infant Gut Microbiota and Its Therapeutic Implications for Reducing Asthma. Int J Mol Sci 2020; 21:E9580. [PMID: 33339172 PMCID: PMC7765661 DOI: 10.3390/ijms21249580] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/14/2020] [Accepted: 12/14/2020] [Indexed: 02/06/2023] Open
Abstract
Gut microbiota is well known as playing a critical role in inflammation and asthma development. The very low-calorie ketogenic diet (VLCKD) is suggested to affect gut microbiota; however, the effects of VLCKD during pregnancy and lactation on the infant gut microbiota are unclear. The VLCKD appears to be more effective than caloric/energy restriction diets for the treatment of several diseases, such as obesity and diabetes. However, whether adherence to VLCKD affects the infant gut microbiota and the protective effects thereof on asthma remains uncertain. The exact mechanisms underlying this process, and in particular the potential role of short chain fatty acids (SCFAs), are still to be unravelled. Thus, the aim of this review is to identify the potential role of SCFAs that underlie the effects of VLCKD during pregnancy and lactation on the infant gut microbiota, and explore whether it incurs significant implications for reducing asthma.
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Affiliation(s)
- Naser A Alsharairi
- Heart, Mind & Body Research Group, Menzies Health Institute Queensland, Griffith University, Gold Coast 4222, Australia
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44
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Liu Y, Bochkov YA, Eickhoff JC, Hu T, Zumwalde NA, Tan JW, Lopez C, Fichtinger PS, Reddy TR, Overmyer KA, Gumperz JE, Coon J, Mathur SK, Gern JE, Smith JA. Orosomucoid-like 3 Supports Rhinovirus Replication in Human Epithelial Cells. Am J Respir Cell Mol Biol 2020; 62:783-792. [PMID: 32078788 DOI: 10.1165/rcmb.2019-0237oc] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Polymorphism at the 17q21 gene locus and wheezing responses to rhinovirus (RV) early in childhood conspire to increase the risk of developing asthma. However, the mechanisms mediating this gene-environment interaction remain unclear. In this study, we investigated the impact of one of the 17q21-encoded genes, ORMDL3 (orosomucoid-like 3), on RV replication in human epithelial cells. ORMDL3 knockdown inhibited RV-A16 replication in HeLa, BEAS-2B, A549, and NCI-H358 epithelial cell lines and primary nasal and bronchial epithelial cells. Inhibition varied by RV species, as both minor and major group RV-A subtypes RV-B52 and RV-C2 were inhibited but not RV-C15 or RV-C41. ORMDL3 siRNA did not affect expression of the major group RV-A receptor ICAM-1 or initial internalization of RV-A16. The two major outcomes of ORMDL3 activity, SPT (serine palmitoyl-CoA transferase) inhibition and endoplasmic reticulum (ER) stress induction, were further examined: silencing ORMDL3 decreased RV-induced ER stress and IFN-β mRNA expression. However, pharmacologic induction of ER stress and concomitant increased IFN-β inhibited RV-A16 replication. Conversely, blockade of ER stress with tauroursodeoxycholic acid augmented replication, pointing to an alternative mechanism for the effect of ORMDL3 knockdown on RV replication. In comparison, the SPT inhibitor myriocin increased RV-A16 but not RV-C15 replication and negated the inhibitory effect of ORMDL3 knockdown. Furthermore, lipidomics analysis revealed opposing regulation of specific sphingolipid species (downstream of SPT) by myriocin and ORMDL3 siRNA, correlating with the effect of these treatments on RV replication. Together, these data revealed a requirement for ORMDL3 in supporting RV replication in epithelial cells via SPT inhibition.
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Affiliation(s)
| | | | | | | | | | | | | | - Paul S Fichtinger
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | | | - Katherine A Overmyer
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin; and.,Morgridge Institute for Research, Madison, Wisconsin
| | | | - Joshua Coon
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin; and.,Morgridge Institute for Research, Madison, Wisconsin
| | - Sameer K Mathur
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | | | - Judith A Smith
- Department of Pediatrics.,Department of Medical Microbiology and Immunology, and
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Li Y, Li X, Zhou W, Yu Q, Lu Y. ORMDL3 modulates airway epithelial cell repair in children with asthma under glucocorticoid treatment via regulating IL-33. Pulm Pharmacol Ther 2020; 64:101963. [PMID: 33035699 DOI: 10.1016/j.pupt.2020.101963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 09/30/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Study found that glucocorticoids, as first-line treatments for asthma, fails to prevent asthma recurrence. Orosomucoid-like (ORMDL) 3 is associated to childhood asthma onset and involved in the inflammation and repair of airway epithelium. We explored the functional role of ORMDL3 in glucocorticoid treatment for childhood asthma. METHODS Mice were sensitized with Ovalbumin (OVA) and treated with Dexamethasone (Dex), followed by OVA challenge to establish a mouse model of asthma. Histopathological changes in lung tissues were observed by hematoxylin-eosin and masson staining. Human bronchial epithelial (16HBE-14°) cells were transfected with ORMDL3 overexpression plasmid and siRNA-interleukin (IL)-33 alone or in combination, followed by Dex. Cell viability was measured by MTT assay. Cell migration was evaluated by wound healing assay. The expressions of E-cadherin and Vimentin and the activation of NF-κB and MAPK/ERK in 16HBE-14° cells were assessed by Western blot. The expressions of ORMDL3 and IL-33 in lung tissues and 16HBE-14° cells were analyzed by qRT-PCR or Western blot. RESULTS Dex treatment alleviated the histopathological abnormality and reversed the overexpressions of ORMDL3 and IL-33 in the lung tissues of asthmatic mice. Overexpressed ORMDL3 enhanced migration and viability, decreased E-cadherin level, increased the levels of IL-33 and Vimentin, and promoted the phosphorylation of NF-κB and MAPK/ERK in Dex-treated 16HBE-14° cells, thus reversing the effect of Dex treatment. However, siRNA-IL-33 inhibited viability and migration, increased E-cadherin level, decreased Vimentin level, and suppressed the phosphorylation of NF-κB and MAPK/ERK, thus reversing the effect of overexpressed ORMDL3 in Dex-treated 16HBE-14° cells. CONCLUSION ORMDL3 overexpression helped airway epithelial cellrepairin asthma via regulating IL-33 expression.
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Affiliation(s)
- Yaqin Li
- Department of Pediatrics, South Campus, Renji Hospital, Shanghai Jiao Tong University School of Medicine, No.2000, Jiangyue Road, Pujiang, Minhang District, Shanghai, 201112, China
| | - Xiaoyan Li
- Department of Pediatrics, South Campus, Renji Hospital, Shanghai Jiao Tong University School of Medicine, No.2000, Jiangyue Road, Pujiang, Minhang District, Shanghai, 201112, China
| | - Wenjing Zhou
- Department of Pediatrics, South Campus, Renji Hospital, Shanghai Jiao Tong University School of Medicine, No.2000, Jiangyue Road, Pujiang, Minhang District, Shanghai, 201112, China
| | - Qing Yu
- Department of Pediatrics, South Campus, Renji Hospital, Shanghai Jiao Tong University School of Medicine, No.2000, Jiangyue Road, Pujiang, Minhang District, Shanghai, 201112, China
| | - Yanming Lu
- Department of Pediatrics, South Campus, Renji Hospital, Shanghai Jiao Tong University School of Medicine, No.2000, Jiangyue Road, Pujiang, Minhang District, Shanghai, 201112, China.
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46
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Wills-Karp M. At last - linking ORMDL3 polymorphisms, decreased sphingolipid synthesis, and asthma susceptibility. J Clin Invest 2020; 130:604-607. [PMID: 31929192 DOI: 10.1172/jci134333] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Asthma is a common chronic respiratory disease that has a heritable component. Polymorphisms in the endoplasmic reticular protein orosomucoid-like protein 3 (ORMDL3), which regulates sphingolipid homeostasis, have been strongly linked with childhood-onset asthma. Despite extensive investigation, a link between ORMDL3 asthma-risk genotypes and altered sphingolipid synthesis has been lacking. In this issue of the JCI, Ono et al. establish a clear association between nonallergic childhood asthma, lower whole-blood sphingolipids, and asthma-risk 17q21 genotypes. These results demonstrate that genetic variants in ORMDL3 may confer a risk of developing childhood asthma through dysregulation of sphingolipid synthesis. As such, modulation of sphingolipids may represent a promising avenue of therapeutic development for childhood asthma.
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Rehman R, Vijayakumar VE, Jaiswal A, Jain V, Mukherjee S, Vellarikkal SK, Dieffenbach PB, Fredenburgh LE, Prakash YS, Ghosh B, Agrawal A, Mabalirajan U. Noncanonical role for Ku70/80 in the prevention of allergic airway inflammation via maintenance of airway epithelial cell organelle homeostasis. Am J Physiol Lung Cell Mol Physiol 2020; 319:L728-L741. [PMID: 32877223 DOI: 10.1152/ajplung.00522.2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Airway epithelial homeostasis is under constant threat due to continuous exposure to the external environment, and abnormally robust sensitivity to external stimuli is critical to the development of airway diseases, including asthma. Ku is a key nonhomologous end-joining DNA repair protein with diverse cellular functions such as VDJ recombination and telomere length maintenance. Here, we show a novel function of Ku in alleviating features of allergic airway inflammation via the regulation of mitochondrial and endoplasmic reticulum (ER) stress. We first determined that airway epithelial cells derived from both asthmatic lungs and murine asthma models demonstrate increased expression of 8-hydroxy-deoxyguanosine (8-OHdG), a marker of oxidative DNA damage. Ku protein expression was dramatically reduced in the bronchial epithelium of patients with asthma as well as in human bronchial epithelial cells exposed to oxidative stress. Knockdown of Ku70 or Ku80 in naïve mice elicited mitochondrial collapse or ER stress, leading to bronchial epithelial cell apoptosis and spontaneous development of asthma-like features, including airway hyperresponsiveness, airway inflammation, and subepithelial fibrosis. These findings demonstrate an essential noncanonical role for Ku proteins in asthma pathogenesis, likely via maintenance of organelle homeostasis. This novel function of Ku proteins may also be important in other disease processes associated with organelle stress.
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Affiliation(s)
- Rakhshinda Rehman
- Molecular Pathobiology of Respiratory Diseases, Council of Scientific and Industrial Research-Institute of Genomics and Integrative Biology, Delhi, India.,Academy of Scientific and Innovative Research, Ghaziabad, India.,Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Vijay Elakkya Vijayakumar
- Molecular Pathobiology of Respiratory Diseases, Council of Scientific and Industrial Research-Institute of Genomics and Integrative Biology, Delhi, India
| | - Ashish Jaiswal
- Molecular Pathobiology of Respiratory Diseases, Council of Scientific and Industrial Research-Institute of Genomics and Integrative Biology, Delhi, India.,Academy of Scientific and Innovative Research, Ghaziabad, India.,Molecular Pathobiology of Respiratory Diseases, Cell Biology and Physiology Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata, India
| | - Vaibhav Jain
- Molecular Pathobiology of Respiratory Diseases, Council of Scientific and Industrial Research-Institute of Genomics and Integrative Biology, Delhi, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Shravani Mukherjee
- Molecular Pathobiology of Respiratory Diseases, Council of Scientific and Industrial Research-Institute of Genomics and Integrative Biology, Delhi, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Shamsudheen Karuthedath Vellarikkal
- Academy of Scientific and Innovative Research, Ghaziabad, India.,Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts
| | - Paul B Dieffenbach
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Laura E Fredenburgh
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Y S Prakash
- Departments of Anesthesiology and Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Balaram Ghosh
- Molecular Pathobiology of Respiratory Diseases, Council of Scientific and Industrial Research-Institute of Genomics and Integrative Biology, Delhi, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Anurag Agrawal
- Molecular Pathobiology of Respiratory Diseases, Council of Scientific and Industrial Research-Institute of Genomics and Integrative Biology, Delhi, India.,Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Ulaganathan Mabalirajan
- Molecular Pathobiology of Respiratory Diseases, Council of Scientific and Industrial Research-Institute of Genomics and Integrative Biology, Delhi, India.,Academy of Scientific and Innovative Research, Ghaziabad, India.,Molecular Pathobiology of Respiratory Diseases, Cell Biology and Physiology Division, Council of Scientific and Industrial Research-Indian Institute of Chemical Biology, Kolkata, India
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48
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Hur GY, Pham A, Miller M, Weng N, Hu J, Kurten RC, Broide DH. ORMDL3 but not neighboring 17q21 gene LRRC3C is expressed in human lungs and lung cells of asthmatics. Allergy 2020; 75:2061-2065. [PMID: 32086831 DOI: 10.1111/all.14243] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/11/2020] [Accepted: 02/15/2020] [Indexed: 12/26/2022]
Affiliation(s)
- Gyu Young Hur
- Department of Medicine University of California San Diego La Jolla CA USA
- Department of Internal Medicine Korea University College of Medicine Seoul Korea
| | - Alexa Pham
- Department of Medicine University of California San Diego La Jolla CA USA
| | - Marina Miller
- Department of Medicine University of California San Diego La Jolla CA USA
| | - Ning Weng
- Department of Medicine University of California San Diego La Jolla CA USA
| | - Jingwen Hu
- Department of Medicine University of California San Diego La Jolla CA USA
| | - Richard C. Kurten
- Department of Physiology and Biophysics Arkansas Children's Research Institute University of Arkansas for Medical Sciences Little Rock AR USA
| | - David H. Broide
- Department of Medicine University of California San Diego La Jolla CA USA
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49
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Lee H, Fenske RJ, Akcan T, Domask E, Davis DB, Kimple ME, Engin F. Differential Expression of Ormdl Genes in the Islets of Mice and Humans with Obesity. iScience 2020; 23:101324. [PMID: 32659722 PMCID: PMC7358727 DOI: 10.1016/j.isci.2020.101324] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 05/05/2020] [Accepted: 06/25/2020] [Indexed: 12/28/2022] Open
Abstract
The orosomucoid-like (Ormdl) proteins play a critical role in sphingolipid homeostasis, inflammation, and ER stress, all of which are associated with obesity and βcell dysfunction. However, their roles in β cells and obesity remain unknown. Here, we show that islets from overweight/obese human donors displayed marginally reduced ORMDL1-2 expression, whereas ORMDL3 expression was significantly downregulated compared with islets from lean donors. In contrast, Ormdl3 was substantially upregulated in the islets of leptin-deficient obese (ob/ob) mice compared with lean mice. Treatment of ob/ob mice and their islets with leptin markedly reduced islet Ormld3 expression. Ormdl3 knockdown in a β cell line induced expression of pro-apoptotic markers, which was rescued by ceramide synthase inhibitor fumonisin B1. Our results reveal differential expression of Ormdl3 in the islets of a mouse model and humans with obesity, highlight the potential effect of leptin in this differential regulation, and suggest a role for Ormdl3 in β cell apoptosis. Islets of overweight/obese human donors display markedly reduced ORMDL3 expression Ormdl3 expression was significantly upregulated in the islets of ob/ob mice Leptin treatment markedly reduced Ormld3 expression in the islets of ob/ob mice Fumonisin B1 restores increased apoptotic marker levels induced by Ormdl3 silencing
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Affiliation(s)
- Hugo Lee
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, School of Medicine and Public Health, WI 53706, USA
| | - Rachel J Fenske
- Interdepartmental Graduate Program in Nutritional Sciences, Madison, WI 53706, USA; Department of Medicine, Division of Endocrinology, Diabetes & Metabolism, University of Wisconsin-Madison, School of Medicine and Public Health, WI 53705, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI 53705, USA
| | - Tugce Akcan
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, School of Medicine and Public Health, WI 53706, USA
| | - Elliot Domask
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, School of Medicine and Public Health, WI 53706, USA
| | - Dawn B Davis
- Department of Medicine, Division of Endocrinology, Diabetes & Metabolism, University of Wisconsin-Madison, School of Medicine and Public Health, WI 53705, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI 53705, USA
| | - Michelle E Kimple
- Interdepartmental Graduate Program in Nutritional Sciences, Madison, WI 53706, USA; Department of Medicine, Division of Endocrinology, Diabetes & Metabolism, University of Wisconsin-Madison, School of Medicine and Public Health, WI 53705, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI 53705, USA; Department of Cell and Regenerative Biology, Madison, WI 53705, USA; Department of Academic Affairs, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Feyza Engin
- Department of Biomolecular Chemistry, University of Wisconsin-Madison, School of Medicine and Public Health, WI 53706, USA; Department of Medicine, Division of Endocrinology, Diabetes & Metabolism, University of Wisconsin-Madison, School of Medicine and Public Health, WI 53705, USA.
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50
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Dileepan M, Ha SG, Rastle-Simpson S, Ge XN, Greenberg YG, Wijesinghe DS, Contaifer D, Rao SP, Sriramarao P. Pulmonary delivery of ORMDL3 short hairpin RNA - a potential tool to regulate allergen-induced airway inflammation. Exp Lung Res 2020; 46:243-257. [PMID: 32578458 DOI: 10.1080/01902148.2020.1781297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Aim/Purpose: Exposure to various allergens has been shown to increase expression of ORMDL3 in the lung in models of allergic asthma. Studies using genetically modified (transgenic or knock out) mice have revealed some of the functions of ORMDL3 in asthma pathogenesis, although amid debate. The goal of this study was to use targeted post-transcriptional downregulation of ORMDL3 in allergen-challenged wild-type (WT) mice by RNA interference to further elucidate the functional role of ORMDL3 in asthma pathogenesis and evaluate a potential therapeutic option.Methods: Allergen (ovalbumin [OVA])-challenged WT mice were administered intranasally (i.n) with a single dose of five short hairpin RNA (shRNA) constructs with different target sequence for murine ORMDL3 cloned in a lentiviral vector or with the empty vector (control). Mice were evaluated for allergen-induced airway hyperresponsiveness (AHR) and various features of airway inflammation after 72 hours.Results: I.n administration of a single dose of ORMDL3 shRNAs to OVA-challenged mice resulted in reduction of ORMDL3 gene expression in the lungs associated with a significant reduction in AHR to inhaled methacholine and in the number of inflammatory cells recruited in the airways, specifically eosinophils, as well as in airway mucus secretion compared to OVA-challenged mice that received the empty vector. Administration of ORMDL3 shRNAs also significantly inhibited levels of IL-13, eotaxin-2 and sphingosine in the lungs. Additionally, ORMDL3 shRNAs significantly inhibited the allergen-mediated increase in monohexyl ceramides C22:0 and C24:0.Conclusions: Post-transcriptional down regulation of ORMDL3 in allergic lungs using i.n-delivered ORMDL3 shRNA (akin to inhaled therapy) attenuates development of key features of airway allergic disease, confirming the involvement of ORMDL3 in allergic asthma pathogenesis and serving as a model for a potential therapeutic strategy.
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Affiliation(s)
- Mythili Dileepan
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN, USA
| | - Sung Gil Ha
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN, USA
| | | | - Xiao Na Ge
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN, USA.,Merck & Co., Inc, Palo Alto, CA, USA
| | - Yana G Greenberg
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN, USA
| | - Dayanjan S Wijesinghe
- Department of Pharmacotherapy and Outcomes Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, USA
| | - Daniel Contaifer
- Department of Pharmacotherapy and Outcomes Sciences, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, USA
| | - Savita P Rao
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN, USA
| | - P Sriramarao
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN, USA
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