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Bahrami R, Golshan-Tafti M, Dastgheib SA, Alijanpour K, Yeganegi M, Lookzadeh MH, Mirjalili SR, Azizi S, Aghasipour M, Shiri A, Noorishadkam M, Neamatzadeh H. A Comprehensive Consolidation of Data on the Relationship Between Surfactant Protein-B (SFTPB) Polymorphisms and Susceptibility to Bronchopulmonary Dysplasia. Fetal Pediatr Pathol 2024:1-19. [PMID: 39245635 DOI: 10.1080/15513815.2024.2400145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 08/28/2024] [Indexed: 09/10/2024]
Abstract
BACKGROUND This meta-analysis aims to evaluate the potential link between common variations in the Surfactant Protein-B (SFTPB) gene and the risk of bronchopulmonary dysplasia (BPD) in preterm neonates. METHODS All pertinent articles published prior to February 1, 2024, in PubMed, Web of Science, EMBASE, CNKI, and Scopus databases were reviewed. RESULTS Nineteen case-control studies involving 1149 BPD cases and 1845 non-BPD controls, were analyzed. Combined data indicated a significant link between SFTPB -18 A > C and Intron 4 VNTR polymorphisms with increased BPD susceptibility, while the 1580 C > T polymorphism provides a protective impact on BPD initiation. CONCLUSIONS Pooled data indicated a significant association between SFTPB -18 A > C and Intron 4 VNTR polymorphisms with increased BPD risk, whereas the 1580 C > T polymorphism confers protection. These findings suggest a genetic susceptibility to BPD, underscoring the complex interplay of different genetic elements in its development.
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Affiliation(s)
- Reza Bahrami
- Neonatal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Seyed Alireza Dastgheib
- Department of Medical Genetics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Kamran Alijanpour
- General Practitioner, Babol University of Medical Sciences, Babol, Iran
| | - Maryam Yeganegi
- Department of Obstetrics and Gynecology, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Mohamad Hosein Lookzadeh
- Mother and Newborn Health Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Seyed Reza Mirjalili
- Mother and Newborn Health Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sepideh Azizi
- Shahid Akbarabadi Cilinical Research Development Unit, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Aghasipour
- Department of Cancer Biology, College of Medicine, University of Cincinnati, OH, USA
| | - Amirmasoud Shiri
- Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahmood Noorishadkam
- Mother and Newborn Health Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hossein Neamatzadeh
- Mother and Newborn Health Research Center, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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2
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Wang X, Qin S, Ren Y, Feng B, Liu J, Yu K, Yu H, Liao Z, Mei H, Tan M. Gpnmb silencing protects against hyperoxia-induced acute lung injury by inhibition of mitochondrial-mediated apoptosis. Hum Exp Toxicol 2024; 43:9603271231222873. [PMID: 38166464 DOI: 10.1177/09603271231222873] [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] [Indexed: 01/04/2024]
Abstract
Background: Hyperoxia-induced acute lung injury (HALI) is a complication to ventilation in patients with respiratory failure, which can lead to acute inflammatory lung injury and chronic lung disease. The aim of this study was to integrate bioinformatics analysis to identify key genes associated with HALI and validate their role in H2O2-induced cell injury model.Methods: Integrated bioinformatics analysis was performed to screen vital genes involved in hyperoxia-induced lung injury (HLI). CCK-8 and flow cytometry assays were performed to assess cell viability and apoptosis. Western blotting was performed to assess protein expression.Results: In this study, glycoprotein non-metastatic melanoma protein B (Gpnmb) was identified as a key gene in HLI by integrated bioinformatics analysis of 4 Gene Expression Omnibus (GEO) datasets (GSE97804, GSE51039, GSE76301 and GSE87350). Knockdown of Gpnmb increased cell viability and decreased apoptosis in H2O2-treated MLE-12 cells, suggesting that Gpnmb was a proapoptotic gene during HALI. Western blotting results showed that knockdown of Gpnmb reduced the expression of Bcl-2 associated X (BAX) and cleaved-caspase 3, and increased the expression of Bcl-2 in H2O2 treated MLE-12 cells. Furthermore, Gpnmb knockdown could significantly reduce reactive oxygen species (ROS) generation and improve the mitochondrial membrane potential.Conclusion: The present study showed that knockdown of Gpnmb may protect against HLI by repressing mitochondrial-mediated apoptosis.
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Affiliation(s)
- Xiaoqin Wang
- Department of Pediatrics, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Song Qin
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yingcong Ren
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Banghai Feng
- Department of Critical Care Medicine, Zunyi Hospital of Traditional Chinese Medicine, Zunyi, China
| | - Junya Liu
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Kun Yu
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Hong Yu
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Zhenliang Liao
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Hong Mei
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Mei Tan
- Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Pediatrics, Guizhou Children's Hospital, Zunyi, China
- Collaborative Innovation Center for Tissue Injury Repair and Regenerative Medicine of Zunyi Medical University, Zunyi, China
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3
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Thomas JM, Sudhadevi T, Basa P, Ha AW, Natarajan V, Harijith A. The Role of Sphingolipid Signaling in Oxidative Lung Injury and Pathogenesis of Bronchopulmonary Dysplasia. Int J Mol Sci 2022; 23:ijms23031254. [PMID: 35163176 PMCID: PMC8835774 DOI: 10.3390/ijms23031254] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 02/07/2023] Open
Abstract
Premature infants are born with developing lungs burdened by surfactant deficiency and a dearth of antioxidant defense systems. Survival rate of such infants has significantly improved due to advances in care involving mechanical ventilation and oxygen supplementation. However, a significant subset of such survivors develops the chronic lung disease, Bronchopulmonary dysplasia (BPD), characterized by enlarged, simplified alveoli and deformed airways. Among a host of factors contributing to the pathogenesis is oxidative damage induced by exposure of the developing lungs to hyperoxia. Recent data indicate that hyperoxia induces aberrant sphingolipid signaling, leading to mitochondrial dysfunction and abnormal reactive oxygen species (ROS) formation (ROS). The role of sphingolipids such as ceramides and sphingosine 1-phosphate (S1P), in the development of BPD emerged in the last decade. Both ceramide and S1P are elevated in tracheal aspirates of premature infants of <32 weeks gestational age developing BPD. This was faithfully reflected in the murine models of hyperoxia and BPD, where there is an increased expression of sphingolipid metabolites both in lung tissue and bronchoalveolar lavage. Treatment of neonatal pups with a sphingosine kinase1 specific inhibitor, PF543, resulted in protection against BPD as neonates, accompanied by improved lung function and reduced airway remodeling as adults. This was accompanied by reduced mitochondrial ROS formation. S1P receptor1 induced by hyperoxia also aggravates BPD, revealing another potential druggable target in this pathway for BPD. In this review we aim to provide a detailed description on the role played by sphingolipid signaling in hyperoxia induced lung injury and BPD.
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Affiliation(s)
- Jaya M. Thomas
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; (J.M.T.); (T.S.); (P.B.); (A.W.H.)
| | - Tara Sudhadevi
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; (J.M.T.); (T.S.); (P.B.); (A.W.H.)
| | - Prathima Basa
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; (J.M.T.); (T.S.); (P.B.); (A.W.H.)
| | - Alison W. Ha
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; (J.M.T.); (T.S.); (P.B.); (A.W.H.)
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Viswanathan Natarajan
- Department of Pharmacology and Regenerative Medicine, University of Illinois at Chicago, Chicago, IL 60607, USA;
- Department of Medicine, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Anantha Harijith
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; (J.M.T.); (T.S.); (P.B.); (A.W.H.)
- Correspondence: ; Tel.: +1-(216)-286-7038
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4
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Zhang L, Bai X, Yan W. LncRNA-MALAT1, as a biomarker of neonatal BPD, exacerbates the pathogenesis of BPD by targeting miR-206. Am J Transl Res 2021; 13:462-479. [PMID: 33594304 PMCID: PMC7868848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
Neonatal bronchopulmonary dysplasia (BPD) is one of the common causes of premature birth complications, which is caused by lung dysplasia. Long non-coding RNA (LncRNA) has been proved to be related to BPD and other disease processes, but the molecular mechanism of metastasis-related lung adenocarcinoma transcript 1 (MALAT1) in BPD has not been fully understood. This study focused on exploring the clinical and molecular mechanism of MALAT1 in neonatal BPD, aiming to provide new insights for the management of neonatal BPD. In our study, we first found that serum MALAT1 was up-regulated in neonatal BPD and severe BPD. Further, through receiver operating characteristic curve (ROC) analysis, it was found that the area under the curve of MALAT1 for differentiating neonatal BPD from severe BPD was 0.943 and 0.866, respectively. Then, we established BPD models in vivo and in vitro with C57BL/6J mice and BEAS-2B cells, and found that MALAT1 was also highly expressed in them and increased with the induction time of the models. Pathological evaluation confirmed that down-regulating MALAT1 or up-regulating miR-206 might improve the pathological condition of BPD. Obvious inflammatory response, oxidative stress and up-regulated apoptosis were observed in BPD models in vivo and in vitro. However, after MALAT1 knockdown treatment, the above abnormal phenomena were alleviated to varying degrees. Furthermore, we also found that MALAT1 has a targeted relationship with miR-206, and miR-206 is down-regulated in BPD in vivo and in vitro. Down-regulating miR-206 could also eliminate the anti-BPD effect after knocking down MALAT1. The above results indicated that MALAT1 has the potential as a blood biomarker of neonatal BPD, and MALAT1-miR-206 axis mediates BPD process, which may be a new target for neonatal BPD treatment.
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Affiliation(s)
- Limin Zhang
- Neonatal Intensive Care Unit, Zhoukou Central Hospital Zhoukou 466000, Henan, China
| | - Xueyan Bai
- Neonatal Intensive Care Unit, Zhoukou Central Hospital Zhoukou 466000, Henan, China
| | - Wenpeng Yan
- Neonatal Intensive Care Unit, Zhoukou Central Hospital Zhoukou 466000, Henan, China
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5
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Zhu X, Wang F, Lei X, Dong W. Resveratrol alleviates alveolar epithelial cell injury induced by hyperoxia by reducing apoptosis and mitochondrial dysfunction. Exp Biol Med (Maywood) 2020; 246:596-606. [PMID: 33215523 DOI: 10.1177/1535370220975106] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Bronchopulmonary dysplasia is a severe and long-term pulmonary disease in premature infants. Hyperoxia-induced acute lung injury plays a critical role in bronchopulmonary dysplasia. Resveratrol is a polyphenolic phytoalexin and a natural agonist of Sirtuin 1. Many studies have shown that resveratrol has a protective effect on hyperoxia-induced lung damage, but its specific protective mechanism is still not clear. Further exploration of the possible protective mechanism of resveratrol was the main goal of this study. In this study, human alveolar epithelial cells were used to establish a hyperoxia-induced acute lung injury cell model, and resveratrol (Res or R), the Sirtuin 1 activator SRT1720 (S) and the Sirtuin 1 inhibitor EX-527 (E) were administered to alveolar epithelial cells, which were then exposed to hyperoxia to investigate the role of Res in mitochondrial function and apoptosis. We divided human alveolar epithelial cells into the following groups: (1) the control group, (2) hyperoxia group, (3) hyperoxia+Res20 group, (4) hyperoxia+Res20+E5 group, (5) hyperoxia+Res20+E10 group, (6) hyperoxia+S2 group, (7) hyperoxia+S2+E5 group, and (8) hyperoxia+S2+E10 group. Hyperoxia-induced cell apoptosis and mitochondrial dysfunction were alleviated by Res and SRT1720. Res and SRT1720 upregulated Sirtuin 1, PGC-1α, NRF1, and TFAM but decreased the expression of acetyl-p53 in human alveolar epithelial cells that were exposed to hyperoxia. These findings revealed that Res may alleviated hyperoxia-induced mitochondrial dysfunction and apoptosis in alveolar epithelial cells through the SIRT1/PGC-1a signaling pathway. Thus, Sirtuin 1 upregulation plays an important role in lung protection.
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Affiliation(s)
- Xiaodan Zhu
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.,Sichuan Clinical Research Center for Birth Defects, Luzhou 646000, China
| | - Fan Wang
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.,Sichuan Clinical Research Center for Birth Defects, Luzhou 646000, China
| | - Xiaoping Lei
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.,Sichuan Clinical Research Center for Birth Defects, Luzhou 646000, China
| | - Wenbin Dong
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.,Sichuan Clinical Research Center for Birth Defects, Luzhou 646000, China
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6
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Shrestha AK, Menon RT, El-Saie A, Barrios R, Reynolds C, Shivanna B. Interactive and independent effects of early lipopolysaccharide and hyperoxia exposure on developing murine lungs. Am J Physiol Lung Cell Mol Physiol 2020; 319:L981-L996. [PMID: 32901520 DOI: 10.1152/ajplung.00013.2020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Bronchopulmonary dysplasia (BPD)-associated pulmonary hypertension (PH) is a chronic infantile lung disease that lacks curative therapies. Infants with BPD-associated PH are often exposed to hyperoxia and additional insults such as sepsis that contribute to disease pathogenesis. Animal models that simulate these scenarios are necessary to develop effective therapies; therefore, we investigated whether lipopolysaccharide (LPS) and hyperoxia exposure during saccular lung development cooperatively induce experimental BPD-PH in mice. C57BL/6J mice were exposed to normoxia or 70% O2 (hyperoxia) during postnatal days (PNDs) 1-5 and intraperitoneally injected with varying LPS doses or a vehicle on PNDs 3-5. On PND 14, we performed morphometry, echocardiography, and gene and protein expression studies to determine the effects of hyperoxia and LPS on lung development, vascular remodeling and function, inflammation, oxidative stress, cell proliferation, and apoptosis. LPS and hyperoxia independently and cooperatively affected lung development, inflammation, and apoptosis. Growth rate and antioxidant enzyme expression were predominantly affected by LPS and hyperoxia, respectively, while cell proliferation and vascular remodeling and function were mainly affected by combined exposure to LPS and hyperoxia. Mice treated with lower LPS doses developed adaptive responses and hyperoxia exposure did not worsen their BPD phenotype, whereas those mice treated with higher LPS doses displayed the most severe BPD phenotype when exposed to hyperoxia and were the only group that developed PH. Collectively, our data suggest that an additional insult such as LPS may be necessary for models utilizing short-term exposure to moderate hyperoxia to recapitulate human BPD-PH.
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Affiliation(s)
- Amrit Kumar Shrestha
- Section of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Renuka T Menon
- Section of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Ahmed El-Saie
- Section of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Roberto Barrios
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas
| | - Corey Reynolds
- Mouse Phenotyping Core, Baylor College of Medicine, Houston, Texas
| | - Binoy Shivanna
- Section of Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
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7
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Sudhadevi T, Ha AW, Ebenezer DL, Fu P, Putherickal V, Natarajan V, Harijith A. Advancements in understanding the role of lysophospholipids and their receptors in lung disorders including bronchopulmonary dysplasia. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158685. [PMID: 32169655 PMCID: PMC7206974 DOI: 10.1016/j.bbalip.2020.158685] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/25/2020] [Accepted: 03/09/2020] [Indexed: 12/14/2022]
Abstract
Bronchopulmonary dysplasia (BPD) is a devastating chronic neonatal lung disease leading to serious adverse consequences. Nearly 15 million babies are born preterm accounting for >1 in 10 births globally. The aetiology of BPD is multifactorial and the survivors suffer lifelong respiratory morbidity. Lysophospholipids (LPL), which include sphingosine-1-phosphate (S1P), and lysophosphatidic acid (LPA) are both naturally occurring bioactive lipids involved in a variety of physiological and pathological processes such as cell survival, death, proliferation, migration, immune responses and vascular development. Altered LPL levels have been observed in a number of lung diseases including BPD, which underscores the importance of these signalling lipids under normal and pathophysiological situations. Due to the paucity of information related to LPLs in BPD, most of the ideas related to BPD and LPL are speculative. This article is intended to promote discussion and generate hypotheses, in addition to the limited review of information related to BPD already established in the literature.
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Affiliation(s)
- Tara Sudhadevi
- Department of Pediatrics, University of Illinois, Chicago, IL, United States of America
| | - Alison W Ha
- Department of Biochemistry and Molecular Genetics, University of Illinois, Chicago, IL, United States of America
| | - David L Ebenezer
- Department of Biochemistry and Molecular Genetics, University of Illinois, Chicago, IL, United States of America
| | - Panfeng Fu
- Department of Pharmacology, University of Illinois, Chicago, IL, United States of America
| | - Vijay Putherickal
- Department of Pharmacology, University of Illinois, Chicago, IL, United States of America
| | - Viswanathan Natarajan
- Department of Pharmacology, University of Illinois, Chicago, IL, United States of America; Department of Medicine, University of Illinois, Chicago, IL, United States of America
| | - Anantha Harijith
- Department of Pediatrics, University of Illinois, Chicago, IL, United States of America; Department of Biochemistry and Molecular Genetics, University of Illinois, Chicago, IL, United States of America; Department of Pharmacology, University of Illinois, Chicago, IL, United States of America.
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8
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Ebenezer DL, Fu P, Krishnan Y, Maienschein-Cline M, Hu H, Jung S, Madduri R, Arbieva Z, Harijith A, Natarajan V. Genetic deletion of Sphk2 confers protection against Pseudomonas aeruginosa mediated differential expression of genes related to virulent infection and inflammation in mouse lung. BMC Genomics 2019; 20:984. [PMID: 31842752 PMCID: PMC6916461 DOI: 10.1186/s12864-019-6367-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 12/03/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Pseudomonas aeruginosa (PA) is an opportunistic Gram-negative bacterium that causes serious life threatening and nosocomial infections including pneumonia. PA has the ability to alter host genome to facilitate its invasion, thus increasing the virulence of the organism. Sphingosine-1- phosphate (S1P), a bioactive lipid, is known to play a key role in facilitating infection. Sphingosine kinases (SPHK) 1&2 phosphorylate sphingosine to generate S1P in mammalian cells. We reported earlier that Sphk2-/- mice offered significant protection against lung inflammation, compared to wild type (WT) animals. Therefore, we profiled the differential expression of genes between the protected group of Sphk2-/- and the wild type controls to better understand the underlying protective mechanisms related to the Sphk2 deletion in lung inflammatory injury. Whole transcriptome shotgun sequencing (RNA-Seq) was performed on mouse lung tissue using NextSeq 500 sequencing system. RESULTS Two-way analysis of variance (ANOVA) analysis was performed and differentially expressed genes following PA infection were identified using whole transcriptome of Sphk2-/- mice and their WT counterparts. Pathway (PW) enrichment analyses of the RNA seq data identified several signaling pathways that are likely to play a crucial role in pneumonia caused by PA such as those involved in: 1. Immune response to PA infection and NF-κB signal transduction; 2. PKC signal transduction; 3. Impact on epigenetic regulation; 4. Epithelial sodium channel pathway; 5. Mucin expression; and 6. Bacterial infection related pathways. Our genomic data suggests a potential role for SPHK2 in PA-induced pneumonia through elevated expression of inflammatory genes in lung tissue. Further, validation by RT-PCR on 10 differentially expressed genes showed 100% concordance in terms of vectoral changes as well as significant fold change. CONCLUSION Using Sphk2-/- mice and differential gene expression analysis, we have shown here that S1P/SPHK2 signaling could play a key role in promoting PA pneumonia. The identified genes promote inflammation and suppress others that naturally inhibit inflammation and host defense. Thus, targeting SPHK2/S1P signaling in PA-induced lung inflammation could serve as a potential therapy to combat PA-induced pneumonia.
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Affiliation(s)
- David L Ebenezer
- Department of Pharmacology, University of Illinois, Chicago, USA
| | - Panfeng Fu
- Department of Pharmacology, University of Illinois, Chicago, USA
| | | | | | - Hong Hu
- Department of Bioinformatics, University of Illinois, Chicago, USA
| | - Segun Jung
- Globus, University of Chicago, Chicago, IL, USA
| | - Ravi Madduri
- Globus, University of Chicago, Chicago, IL, USA
- Argonne National Laboratory, Chicago, IL, USA
| | - Zarema Arbieva
- Department of Core Genomics Facility, University of Illinois, Chicago, USA
| | - Anantha Harijith
- Department of Pediatrics, University of Illinois, Room 3139, COMRB Building, 909, South Wolcott Avenue, Chicago, IL, 60612, USA.
| | - Viswanathan Natarajan
- Department of Pharmacology, University of Illinois, Chicago, USA
- Department of Medicine, University of Illinois, Chicago, USA
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9
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Lignelli E, Palumbo F, Myti D, Morty RE. Recent advances in our understanding of the mechanisms of lung alveolarization and bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2019; 317:L832-L887. [PMID: 31596603 DOI: 10.1152/ajplung.00369.2019] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is the most common cause of morbidity and mortality in preterm infants. A key histopathological feature of BPD is stunted late lung development, where the process of alveolarization-the generation of alveolar gas exchange units-is impeded, through mechanisms that remain largely unclear. As such, there is interest in the clarification both of the pathomechanisms at play in affected lungs, and the mechanisms of de novo alveoli generation in healthy, developing lungs. A better understanding of normal and pathological alveolarization might reveal opportunities for improved medical management of affected infants. Furthermore, disturbances to the alveolar architecture are a key histopathological feature of several adult chronic lung diseases, including emphysema and fibrosis, and it is envisaged that knowledge about the mechanisms of alveologenesis might facilitate regeneration of healthy lung parenchyma in affected patients. To this end, recent efforts have interrogated clinical data, developed new-and refined existing-in vivo and in vitro models of BPD, have applied new microscopic and radiographic approaches, and have developed advanced cell-culture approaches, including organoid generation. Advances have also been made in the development of other methodologies, including single-cell analysis, metabolomics, lipidomics, and proteomics, as well as the generation and use of complex mouse genetics tools. The objective of this review is to present advances made in our understanding of the mechanisms of lung alveolarization and BPD over the period 1 January 2017-30 June 2019, a period that spans the 50th anniversary of the original clinical description of BPD in preterm infants.
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Affiliation(s)
- Ettore Lignelli
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Francesco Palumbo
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Despoina Myti
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Rory E Morty
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
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10
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Yang R, Tan M, Xu J, Zhao X. Investigating the regulatory role of ORMDL3 in airway barrier dysfunction using in vivo and in vitro models. Int J Mol Med 2019; 44:535-548. [PMID: 31173170 PMCID: PMC6605285 DOI: 10.3892/ijmm.2019.4233] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 06/04/2019] [Indexed: 02/06/2023] Open
Abstract
The airway epithelium (AE) is the main protective barrier between the host and external environmental factors causing asthma. Allergens or pathogens induce AE dysfunction, including epithelial permeability alteration, trans‑epithelial electrical resistance (TEER) reduction, upregulation of inflammatory mediators and downregulation of junctional complex molecules. Orosomucoid‑like protein isoform 3 (ORMDL3), a gene closely associated with childhood onset asthma, is involved in airway inflammation and remodeling. It was hypothesized that ORMDL3 plays an important role in regulating AE barrier function. In vivo [chronic asthma induced by ovalbumin‑respiratory syncytial virus (OVA‑RSV)] in mice) and in vitro (human bronchial epithelial cells and 16HBE cells) models were used to assess ORMDL3's role in AE function regulation, evaluating paracellular permeability, TEER and the expression levels of junctional complex molecules. The effects of ORMDL3 on the extracellular signal‑regulated protein kinase (ERK) pathway were determined. In mice with OVA‑RSV induced chronic asthma, ORMDL3 and sphingosine kinase 1 (SPHK1) were upregulated whereas the junction related proteins Claudin‑18 and E‑cadherin were downregulated. Overexpression of ORMDL3 resulted in decreased TEER, downregulation of junctional complex molecules and induced epithelial permeability. In contrast, ORMDL3 inhibition showed the opposite effects. In 16HBE cells, ORMDL3 overexpression induced SPHK1 distribution and activity, while SPHK1 inhibition resulted in increased TEER upon administration of an ORMDL3 agonist or ORMDL3 overexpression. In addition, ERK activation occurred downstream of SPHK1 activation in 16HBE cells. High levels of ORMDL3 result in damaged AE barrier function by inducing the SPHK1/ERK pathway.
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Affiliation(s)
- Ruixue Yang
- Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Min Tan
- Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
| | - Jianya Xu
- Jiangsu Key Laboratory of Pediatric Respiratory Disease, Nanjing, Jiangsu 210023, P.R. China
| | - Xia Zhao
- Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, P.R. China
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11
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Zhu X, Lei X, Wang J, Dong W. Protective effects of resveratrol on hyperoxia-induced lung injury in neonatal rats by alleviating apoptosis and ROS production. J Matern Fetal Neonatal Med 2019; 33:4150-4158. [PMID: 30890012 DOI: 10.1080/14767058.2019.1597846] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Background: Bronchopulmonary dysplasia (BPD) is one of the most common long-term lung complications of prematurely born infants caused by prolonged injury and repair during immature lung development. Resveratrol has reported to exert anti-inflammatory, antioxidation, and antiapoptosis effects. This study aimed to investigate the effect of resveratrol in BPD.Methods: Neonate rats were delivered spontaneously and randomized divided into four groups on postnatal day (PN) 0.5: room air (21% O2)+dimethyl sulfoxide (DMSO), room air + resveratrol, hyperoxia (80%)+DMSO, hyperoxia + resveratrol. Lung tissues were collected on PN1, PN7, and PN14. Protective effects of resveratrol on hyperoxia-induced lung injury were evaluated by hematoxylin and eosin (HE) staining, TUNEL staining, reactive oxygen species (ROS) detection, qRT-PCR, and western blotting.Results: Hyperoxia-induced alveolar simplification and apoptosis were alleviated by resveratrol; resveratrol reduced ROS production, up-regulated SIRT1, decreased the expressing of p53, and acetyl-p53 in the lung of hyperoxia-exposed neonatal rats.Conclusions: This study showed that resveratrol alleviated hyperoxia-induced apoptosis in neonatal rats lung tissue via reducing ROS and p53. Resveratrol-induced SIRT1 upregulation and acetyl-p53 reduction may also be involved in lung protection.
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Affiliation(s)
- Xiaodan Zhu
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Xiaoping Lei
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Junyi Wang
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
| | - Wenbin Dong
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, PR China
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12
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Wang J, Yin J, Wang X, Liu H, Hu Y, Yan X, Zhuang B, Yu Z, Han S. Changing expression profiles of mRNA, lncRNA, circRNA, and miRNA in lung tissue reveal the pathophysiological of bronchopulmonary dysplasia (BPD) in mouse model. J Cell Biochem 2019; 120:9369-9380. [PMID: 30802330 DOI: 10.1002/jcb.28212] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 11/15/2018] [Indexed: 12/26/2022]
Abstract
New perinatal care technologies have improved the survival rate of preterm neonates, but the prevalence of bronchopulmonary dysplasia (BPD), one of the most intractable problems in neonatal intensive care unit (NICU), remains unchanged. In present study, high-throughput sequencing (HTS) was performed to detect the expression profiles of long noncoding RNAs (lncRNAs), messenger RNAs (mRNAs), circular RNAs (circRNAs), and microRNAs (miRNAs) in hyperoxia-induced BPD mouse model. Significant differentially expressed RNAs were selected and clustered between the BPD group and the control group. The results revealed that expressions of 1778 lncRNAs, 1240 mRNAs, 97 circRNAs, and 201 miRNAs were significantly altered in the BPD group. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) were performed to predict the potential functions of differentially expressed RNAs. lncRNA-mRNA and circRNA-miRNA coexpression networks were constructed to detect their association with the pathogenesis of BPD. Our study provides a systematic perspective on the potential function of RNAs during BPD.
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Affiliation(s)
- Juan Wang
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China.,Department of Pediatrics, The First People's Hospital of Lianyungang City, Lianyungang, Jiangsu, China
| | - Jing Yin
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Xingyun Wang
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Heng Liu
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Yin Hu
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Xiangyun Yan
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Bin Zhuang
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Zhangbin Yu
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
| | - Shuping Han
- Department of Pediatrics, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, China
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13
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Li J, Shi J, Li P, Guo X, Wang T, Liu A. Genipin attenuates hyperoxia-induced lung injury and pulmonary hypertension via targeting glycogen synthase kinase-3 β in neonatal rats. Nutrition 2019; 57:237-244. [DOI: 10.1016/j.nut.2018.05.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/06/2018] [Accepted: 05/25/2018] [Indexed: 12/18/2022]
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14
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Wang J, Dong W. Oxidative stress and bronchopulmonary dysplasia. Gene 2018; 678:177-183. [PMID: 30098433 DOI: 10.1016/j.gene.2018.08.031] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 07/30/2018] [Accepted: 08/06/2018] [Indexed: 12/18/2022]
Abstract
With the progress of modern medicine, oxygen therapy has become a crucial measure for the treatment of premature infants. As an environmental stimulus, in the normal development of lungs, oxygen plays a very important regulatory role. However, the problem is that long-term exposure to hyperoxia can interfere with the development of lungs, leading to irreversible developmental abnormalities. Now, the incidence of bronchopulmonary dysplasia (BPD) is increasing year by year. The existing related research shows that although BPD is a multi-factor triggered disease, its main risk factors are the premature exposure to hyperoxia and the role of reactive oxygen species (ROS). As for premature infants, especially very premature babies and those with very low birth weight, prolonged exposure to high oxygen can affect and alter the normal developmental trajectories of lung tissue and vascular beds, triggering developmental disorders, such as BPD. In the relevant studies about human BPD, a large number of them support that ROS is associated with impaired lung development. Neonates, due to the damage in the development of alveolar, are specific to hyperoxia-induced inflammatory damage. This review while focusing on the role of oxidative stress in the pathogenesis of BPD, suggests that antioxidant measures may be effective to guard against BPD of preterm infants.
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Affiliation(s)
- Junyi Wang
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, 25 Taiping Road, Luzhou, Sichuan 646000, People's Republic of China
| | - Wenbin Dong
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, 25 Taiping Road, Luzhou, Sichuan 646000, People's Republic of China.
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