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Tong Y, Zhang S, Riddle S, Song R, Yue D. Circular RNAs in the Origin of Developmental Lung Disease: Promising Diagnostic and Therapeutic Biomarkers. Biomolecules 2023; 13:biom13030533. [PMID: 36979468 PMCID: PMC10046088 DOI: 10.3390/biom13030533] [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: 02/09/2023] [Revised: 03/11/2023] [Accepted: 03/12/2023] [Indexed: 03/17/2023] Open
Abstract
Circular RNA (circRNA) is a newly discovered noncoding RNA that regulates gene transcription, binds to RNA-related proteins, and encodes protein microRNAs (miRNAs). The development of molecular biomarkers such as circRNAs holds great promise in the diagnosis and prognosis of clinical disorders. Importantly, circRNA-mediated maternal-fetus risk factors including environmental (high altitude), maternal (preeclampsia, smoking, and chorioamnionitis), placental, and fetal (preterm birth and low birth weight) factors are the early origins and likely to contribute to the occurrence and progression of developmental and pediatric cardiopulmonary disorders. Although studies of circRNAs in normal cardiopulmonary development and developmental diseases have just begun, some studies have revealed their expression patterns. Here, we provide an overview of circRNAs’ biogenesis and biological functions. Furthermore, this review aims to emphasize the importance of circRNAs in maternal-fetus risk factors. Likewise, the potential biomarker and therapeutic target of circRNAs in developmental and pediatric lung diseases are explored.
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Affiliation(s)
- Yajie Tong
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Shuqing Zhang
- School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Suzette Riddle
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Rui Song
- Lawrence D. Longo MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA
- Correspondence: (R.S.); (D.Y.); Tel.: +01-909-558-4325 (R.S.); +86-24-9661551125 (D.Y.)
| | - Dongmei Yue
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China
- Correspondence: (R.S.); (D.Y.); Tel.: +01-909-558-4325 (R.S.); +86-24-9661551125 (D.Y.)
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Freitag L, Spinell T, Kröger A, Würfl G, Lauseker M, Hickel R, Kebschull M. Dental implant material related changes in molecular signatures in peri-implantitis - A systematic review and integrative analysis of omics in-vitro studies. Dent Mater 2023; 39:101-113. [PMID: 36526446 DOI: 10.1016/j.dental.2022.11.022] [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: 07/09/2022] [Revised: 11/23/2022] [Accepted: 11/25/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Since peri-implantitis differs clinically and histopathologically from periodontitis, implant wear debris is considered to play a role in the destructive processes. This work aims to systematically review if titanium particles affect oral-related cells through changes in molecular signatures (e.g., transcriptome, proteome, epigenome), thereby promoting peri-implantitis. METHODS Leveraging three literature databases (Medline, Embase, Cochrane) a systematic search based on a priori defined PICOs was conducted: '-omics' studies examining titanium exposure in oral-related cells. After risk of bias assessments, lists of differentially expressed genes, proteins, and results of functional enrichment analyses were compiled. The significance of overlapping genes across multiple studies was assessed via Monte Carlo simulation and their ranking was verified using rank aggregation. RESULTS Out of 2104 screened articles we found 12 eligible publications. A significant overlap of gene expression in oral-related cells exposed to titanium particles was found in four studies. Furthermore, changes in biological processes like immune/inflammatory or stress response as well as toll-like receptor (TLR) and mitogen-activated protein kinase (MAPK) signaling pathways were linked to titanium in transcriptome and proteome studies. Epigenetic changes caused by titanium were detected but inconsistent. CONCLUSION An influence of titanium implant wear debris on the development and progression of peri-implantitis is plausible but needs to be proven in further studies. Limitations arise from small sample sizes of included studies and insufficient publication of re-analyzable data.
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Affiliation(s)
- Lena Freitag
- Department of Conservative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-University, Goethestr. 70, D-80336 Munich, Germany
| | - Thomas Spinell
- Department of Conservative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-University, Goethestr. 70, D-80336 Munich, Germany.
| | - Annika Kröger
- School of Dentistry, Institute of Clinical Sciences, University of Birmingham, Birmingham, UK; Birmingham Community Healthcare NHS Foundation Trust, Birmingham, UK
| | | | - Michael Lauseker
- Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-University, Munich, Germany
| | - Reinhard Hickel
- Department of Conservative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-University, Goethestr. 70, D-80336 Munich, Germany
| | - Moritz Kebschull
- School of Dentistry, Institute of Clinical Sciences, University of Birmingham, Birmingham, UK; Birmingham Community Healthcare NHS Foundation Trust, Birmingham, UK; Division of Periodontics, Section of Oral, Diagnostic and Rehabilitation Sciences, Columbia University College of Dental Medicine, New York, NY, USA
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Early Salivary miRNA Expression in Extreme Low Gestational Age Newborns. Life (Basel) 2022; 12:life12040506. [PMID: 35454997 PMCID: PMC9029747 DOI: 10.3390/life12040506] [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: 02/18/2022] [Revised: 03/07/2022] [Accepted: 03/23/2022] [Indexed: 11/17/2022] Open
Abstract
Background: MicroRNAs (miRNA) are small non-coding RNAs that regulate gene expression playing a key role in organogenesis. MiRNAs are studied in tracheal aspirates (TA) of preterm infants. However; this is difficult to obtain in infants who are not intubated. This study examines early salivary miRNA expression as non-invasive early biomarkers in extremely low gestational age newborns (ELGANs). Methods: Saliva was collected using DNA-genotek swabs, miRNAs were analyzed using RNA seq and RT PCR arrays. Salivary miRNA expression was compared to TA using RNA seq at 3 days of age, and longitudinal changes at 28 days of age were analyzed using RT PCR arrays in ELGANs. Results: Approximately 822 ng of RNA was extracted from saliva of 7 ELGANs; Of the 757 miRNAs isolated, 161 miRNAs had significant correlation in saliva and TA at 3 days of age (r = 0.97). Longitudinal miRNA analysis showed 29 miRNAs downregulated and 394 miRNAs upregulated at 28 days compared to 3 days of age (adjusted p < 0.1). Bioinformatic analysis (Ingenuity Pathway Analysis) of differentially expressed miRNAs identified organismal injury and abnormalities and cellular development as the top physiological system development and cellular function. Conclusion: Salivary miRNA expression are source for early biomarkers of underlying pathophysiology in ELGANs.
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Wen X, Zhang H, Xiang B, Zhang W, Gong F, Li S, Chen H, Luo X, Deng J, You Y, Hu Z, Jiang C. Hyperoxia-induced miR-342-5p down-regulation exacerbates neonatal bronchopulmonary dysplasia via the Raf1 regulator Spred3. Br J Pharmacol 2021; 178:2266-2283. [PMID: 33434946 DOI: 10.1111/bph.15371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 12/10/2020] [Accepted: 01/01/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND AND PURPOSE Bronchopulmonary dysplasia (BPD) is the most prevalent chronic paediatric lung disease and is linked to the development of chronic obstructive pulmonary disease. MicroRNA-based regulation of type II alveolar epithelial cell (T2AEC) proliferation and apoptosis is an important factor in the pathogenesis of BPD and warrants further investigation. EXPERIMENTAL APPROACH Two murine models of hyperoxic lung injury (with or without miR-342-5p or Sprouty-related, EVH1 domain-containing protein 3 [Spred3] modulation) were employed: a hyperoxia-induced acute lung injury model (100% O2 on postnatal days 1-7) and the BPD model (100% O2 on postnatal days 1-4, followed by room air for 10 days). Tracheal aspirate pellets from healthy control and moderate/severe BPD neonates were randomly selected for clinical miR-342-5p analysis. KEY RESULTS Hyperoxia decreased miR-342-5p levels in primary T2AECs, MLE12 cells and neonatal mouse lungs. Transgenic miR-342 overexpression in neonatal mice ameliorated survival rates and improved the BPD phenotype and BPD-associated pulmonary arterial hypertension (PAH). T2AEC-specific miR-342 transgenic overexpression, as well as miR-342-5p mimic therapy, also ameliorated the BPD phenotype and associated PAH. miR-342-5p targets the 3'UTR of the Raf1 regulator Spred3, inhibiting Spred3 expression. Treatment with recombinant Spred3 exacerbated the BPD phenotype and associated PAH. Notably, miR-342-5p inhibition under room air conditions did not mimic the BPD phenotype. Moderate/severe BPD tracheal aspirate pellets exhibited decreased miR-342-5p levels relative to healthy control pellets. CONCLUSION AND IMPLICATIONS These findings suggest that miR-342-5p mimic therapy may show promise in the treatment or prevention of BPD.
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Affiliation(s)
- Xin Wen
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Hui Zhang
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Bo Xiang
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Weiyu Zhang
- Department of Pediatrics, Chongqing Jiulongpo District Maternity Child Health Care Hospital, Chongqing, China
| | - Fang Gong
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Shiling Li
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Hongyan Chen
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Xuan Luo
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Juan Deng
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Yaoyao You
- Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - Zhangxue Hu
- Department of Pediatrics, Army Medical Center, Army Medical University, Chongqing, China
| | - Changke Jiang
- Department of Pediatrics, Chongqing Yongchuan District Maternity Child Health Care Hospital, Chongqing, China.,Department of Pediatrics, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
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Das P, Shah D, Bhandari V. miR34a: a novel small molecule regulator with a big role in bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2021; 321:L228-L235. [PMID: 33825492 DOI: 10.1152/ajplung.00279.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Preterm infants with bronchopulmonary dysplasia (BPD), characterized by pulmonary inflammation leading to impaired alveolarization and vascular dysregulation, have an increased risk of abnormal lung function in infancy, childhood, and adulthood. These include a heightened risk of pulmonary hypertension, and respiratory illnesses. MicroRNAs (miRNAs) are known to disrupt normal lung development and function by interrupting alveolarization and vascularization resulting in the development of BPD. Among the various miRs involved in BPD, miR34a has been shown to have a significant role in BPD pathogenesis. Targeting miR34a or its downstream targets may be a promising therapeutic intervention for BPD. In this review, we summarize the data on cellular arrest, proliferation, differentiation, epithelial-mesenchymal transition, mitochondrial dysfunction, and apoptosis impacted by miR34a in the development of BPD pulmonary phenotypes while predicting the future perspective of miR34a in BPD.
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Affiliation(s)
- Pragnya Das
- Division of Neonatology, Department of Pediatrics, The Children's Regional Hospital at Cooper/Cooper University Health Care, Camden, New Jersey
| | - Dilip Shah
- Division of Neonatology, Department of Pediatrics, The Children's Regional Hospital at Cooper/Cooper University Health Care, Camden, New Jersey
| | - Vineet Bhandari
- Division of Neonatology, Department of Pediatrics, The Children's Regional Hospital at Cooper/Cooper University Health Care, Camden, New Jersey
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Oji-Mmuo CN, Siddaiah R, Montes DT, Pham MA, Spear D, Donnelly A, Fuentes N, Imamura-Kawasawa Y, Howrylak JA, Thomas NJ, Silveyra P. Tracheal aspirate transcriptomic and miRNA signatures of extreme premature birth with bronchopulmonary dysplasia. J Perinatol 2021; 41:551-561. [PMID: 33177681 DOI: 10.1038/s41372-020-00868-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 10/06/2020] [Accepted: 10/28/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Extreme preterm infants are a growing population in neonatal intensive care units who carry a high mortality and morbidity. Multiple factors play a role in preterm birth, resulting in major impact on organogenesis leading to complications including bronchopulmonary dysplasia (BPD). The goal of this study was to identify biomarker signatures associated with prematurity and BPD. STUDY DESIGN We analyzed miRNA and mRNA profiles in tracheal aspirates (TAs) from 55 infants receiving invasive mechanical ventilation. Twenty-eight infants were extremely preterm and diagnosed with BPD, and 27 were term babies receiving invasive mechanical ventilation for elective procedures. RESULT We found 22 miRNAs and 33 genes differentially expressed (FDR < 0.05) in TAs of extreme preterm infants with BPD vs. term babies without BPD. Pathway analysis showed associations with inflammatory response, cellular growth/proliferation, and tissue development. CONCLUSIONS Specific mRNA-miRNA signatures in TAs may serve as biomarkers for BPD pathogenesis, a consequence of extreme prematurity.
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Affiliation(s)
| | - Roopa Siddaiah
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Deborah T Montes
- Biobehavioral Laboratory, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Melody A Pham
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Debra Spear
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Ann Donnelly
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Nathalie Fuentes
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Yuka Imamura-Kawasawa
- Institute for Personalized Medicine, Departments of Biochemistry and Molecular Biology and Pharmacology, Penn State College of Medicine, Hershey, PA, USA
| | - Judie A Howrylak
- Division of Pulmonary and Critical Care Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA, USA
| | - Neal J Thomas
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Patricia Silveyra
- Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA. .,Biobehavioral Laboratory, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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Yang K, Dong W. SIRT1-Related Signaling Pathways and Their Association With Bronchopulmonary Dysplasia. Front Med (Lausanne) 2021; 8:595634. [PMID: 33693011 PMCID: PMC7937618 DOI: 10.3389/fmed.2021.595634] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 02/03/2021] [Indexed: 12/28/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic and debilitating disease that can exert serious and overwhelming effects on the physical and mental health of premature infants, predominantly due to intractable short- and long-term complications. Oxidative stress is one of the most predominant causes of BPD. Hyperoxia activates a cascade of hazardous events, including mitochondrial dysfunction, uncontrolled inflammation, reduced autophagy, increased apoptosis, and the induction of fibrosis. These events may involve, to varying degrees, alterations in SIRT1 and its associated targets. In the present review, we describe SIRT1-related signaling pathways and their association with BPD. Our intention is to provide new insights into the molecular mechanisms that regulate BPD and identify potential therapeutic targets for this debilitating condition.
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Affiliation(s)
- Kun Yang
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Wenbin Dong
- Department of Newborn Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, China
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Cheng H, Chen L, Wei Y, Hu T, Li D, Wu B. Knockdown of miR-203a-3p alleviates the development of bronchopulmonary dysplasia partly via the up-regulation of vascular endothelial growth factor A. J Bioenerg Biomembr 2021; 53:13-23. [PMID: 33415607 DOI: 10.1007/s10863-020-09863-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 11/23/2020] [Indexed: 12/01/2022]
Abstract
Bronchopulmonary dysplasia (BPD) is characterized by impaired vascular and alveolar development, and the underlying molecular mechanisms have remained elusive. MicroRNAs are important players in various biological functions including the pathogenesis of BPD. The present study aimed to examine the expression of miR-203a-3p in the peripheral blood of BPD patients and elucidate the mechanisms underlying miR-203a-3p-mediated progression of BPD. We examined the expression of miR-203a-3p in the peripheral blood of BPD patients and found that miR-203a-3p was up-regulated in the patients. Additionally, the mRNA expression levels of vascular endothelial growth factor A (VEGFA) and hypoxia-inducible factor-1alpha were down-regulated in the BPD patients. Further in vitro studies showed that miR-203a-3p suppressed the expression of VEGFA in RLE-6TN cells by targeting the VEGFA 3' untranslated region. Overexpression of miR-203a-3p inhibited the viability of RLE-6TN cells and induced cell apoptosis, whereas the knockdown of miR-203a-3p exerted opposite effects. VEGFA treatment significantly attenuated the increase in the RLE-6TN cell apoptotic rates induced by miR-203a-3p overexpression; while VEGFA knockdown significantly increased the cell apoptotic rates of RLE-6TN cells, which was partially reversed by the treatment with miR-203a-3p inhibitor. Furthermore, miR-203a-3p was up-regulated, whereas VEGFA was down-regulated in the lung tissues of BPD rats, and sequestration of the expression of miR-203a-3p prevented hyperoxia-induced lung damage, increased VEGFA mRNA and protein expression levels, and promoted the protein expression of ERK, PI3K, and p38 in the lung tissues of BDP rats. In summary, the findings of our study indicate that miR-203a-3p knockdown alleviates hyperoxia-induced lung tissue damage in the BPD rat model, and its effect may be associated with the up-regulation of VEGF.
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Affiliation(s)
- Hanrong Cheng
- Institute of Respiratory Diseases, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, China
| | - Li Chen
- Institute of Pediatrics, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, China
| | - Yongli Wei
- Institute of Pediatrics, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, China
| | - Tianyong Hu
- Longgang ENT Hospital, Institute of ENT and Shenzhen Key Laboratory of ENT, Shenzhen, 518172, China
| | - Dongcai Li
- Longgang ENT Hospital, Institute of ENT and Shenzhen Key Laboratory of ENT, Shenzhen, 518172, China.
| | - Benqing Wu
- Department of Neonatology, University of Chinese Academy of Science-Shenzhen Hospital, Shenzhen, 518000, China.
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Chao CM, Chong L, Chu X, Shrestha A, Behnke J, Ehrhardt H, Zhang J, Chen C, Bellusci S. Targeting Bronchopulmonary Dysplasia-Associated Pulmonary Hypertension (BPD-PH): Potential Role of the FGF Signaling Pathway in the Development of the Pulmonary Vascular System. Cells 2020; 9:cells9081875. [PMID: 32796770 PMCID: PMC7464452 DOI: 10.3390/cells9081875] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/07/2020] [Accepted: 08/07/2020] [Indexed: 12/11/2022] Open
Abstract
More than 50 years after the first description of Bronchopulmonary dysplasia (BPD) by Northway, this chronic lung disease affecting many preterm infants is still poorly understood. Additonally, approximately 40% of preterm infants suffering from severe BPD also suffer from Bronchopulmonary dysplasia-associated pulmonary hypertension (BPD-PH), leading to a significant increase in total morbidity and mortality. Until today, there is no curative therapy for both BPD and BPD-PH available. It has become increasingly evident that growth factors are playing a central role in normal and pathologic development of the pulmonary vasculature. Thus, this review aims to summarize the recent evidence in our understanding of BPD-PH from a basic scientific point of view, focusing on the potential role of Fibroblast Growth Factor (FGF)/FGF10 signaling pathway contributing to disease development, progression and resolution.
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Affiliation(s)
- Cho-Ming Chao
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China; (J.Z.); (C.C.)
- Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, Member of the German Center for Lung Research, Justus-Liebig-University Giessen, 35392 Giessen, Germany; (X.C.); (A.S.)
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Feulgenstrasse 12, D-35392 Gießen, Universities of Gießen and Marburg Lung Center, German Center for Lung Research, 35392 Giessen, Germany; (J.B.); (H.E.)
- Correspondence: (C.-M.C.); (S.B.)
| | - Lei Chong
- Institute of Pediatrics, National Key Clinical Specialty of Pediatric Respiratory Medicine, Discipline of Pediatric Respiratory Medicine, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China;
| | - Xuran Chu
- Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, Member of the German Center for Lung Research, Justus-Liebig-University Giessen, 35392 Giessen, Germany; (X.C.); (A.S.)
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Amit Shrestha
- Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, Member of the German Center for Lung Research, Justus-Liebig-University Giessen, 35392 Giessen, Germany; (X.C.); (A.S.)
| | - Judith Behnke
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Feulgenstrasse 12, D-35392 Gießen, Universities of Gießen and Marburg Lung Center, German Center for Lung Research, 35392 Giessen, Germany; (J.B.); (H.E.)
| | - Harald Ehrhardt
- Department of General Pediatrics and Neonatology, Justus-Liebig-University, Feulgenstrasse 12, D-35392 Gießen, Universities of Gießen and Marburg Lung Center, German Center for Lung Research, 35392 Giessen, Germany; (J.B.); (H.E.)
| | - Jinsan Zhang
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China; (J.Z.); (C.C.)
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
- International Collaborative Center on Growth Factor Research, Life Science Institute, Wenzhou University, Wenzhou 325035, China
| | - Chengshui Chen
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China; (J.Z.); (C.C.)
| | - Saverio Bellusci
- Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China; (J.Z.); (C.C.)
- Cardio-Pulmonary Institute, Universities of Giessen and Marburg Lung Center, Member of the German Center for Lung Research, Justus-Liebig-University Giessen, 35392 Giessen, Germany; (X.C.); (A.S.)
- Correspondence: (C.-M.C.); (S.B.)
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Abstract
Bronchopulmonary dysplasia (BPD) remains a common and challenging complication of prematurity, with limited effective strategies at the neonatologist's disposal. Throughout the years, our understanding of this complex syndrome has broadened. Instead of solely attributing this disease to the effects of prematurity and injuries to the lung from mechanical ventilation, it is now accepted to be a multifactorial disease. Recent research efforts have focused on investigating the gene-environment interactions that may influence an infant's susceptibility toward the development of BPD. So far, success has been limited but promising, offering hope that in the future, novel therapies will be available to ameliorate the risk for BPD.
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Affiliation(s)
- Melanie Leong
- Division of Newborn Medicine, The Regional Neonatal Center, Maria Fareri Children's Hospital, New York Medical College, Valhalla, NY
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11
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Mao X, Guo Y, Qiu J, Zhao L, Xu J, Yin J, Lu K, Zhang M, Cheng R. Next-generation sequencing to investigate circular RNA profiles in the peripheral blood of preterm neonates with bronchopulmonary dysplasia. J Clin Lab Anal 2020; 34:e23260. [PMID: 32091150 PMCID: PMC7370752 DOI: 10.1002/jcla.23260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 12/30/2022] Open
Abstract
Background Circular RNAs (circRNAs) are emerging noncoding RNAs that are involved in many biological processes and diseases. The expression profile of circRNAs in preterm neonates with bronchopulmonary dysplasia (BPD) remains unresolved. Methods In BPD infants, peripheral venous blood was drawn and circRNAs were extracted and sequenced by next‐generation sequencing. The levels of the selected circRNAs were measured by real‐time quantitative reverse transcription PCR. Results Among thousands of circRNAs, 491 circRNAs were significantly changed. Among the top 10 changed circRNAs, hsa_circ_0003122, hsa_circ_0003357, hsa_circ_0009983, hsa_circ_0003037, and hsa_circ_0009256 were significantly increased, while hsa_circ_0014932, hsa_circ_0015109, hsa_circ_0017811, hsa_circ_0020588, and hsa_circ_0015066 were significantly decreased. These altered circRNAs are involved in complicated biological functions and signaling pathways. Additionally, hsa_circ_0005577 (hsa_circ_FANCL), which was significantly increased in the moderate‐to‐severe BPD subjects, was correlated with oxygenation therapy. Conclusion These results suggest that an aberrant circRNA profile in the peripheral blood of BPD infants might be important in BPD pathogenesis.
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Affiliation(s)
- Xiaonan Mao
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Yan Guo
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Jie Qiu
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Li Zhao
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Junjie Xu
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Jiao Yin
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Keyu Lu
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Mingshun Zhang
- Department of Immunology, National Health Commission of Key Lab of Antibody Technology, Nanjing Medical University, Nanjing, China
| | - Rui Cheng
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, China
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Preventing bronchopulmonary dysplasia: new tools for an old challenge. Pediatr Res 2019; 85:432-441. [PMID: 30464331 DOI: 10.1038/s41390-018-0228-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 09/12/2018] [Accepted: 09/25/2018] [Indexed: 12/12/2022]
Abstract
Bronchopulmonary dysplasia (BPD) is the most prevalent chronic lung disease in infants and presents as a consequence of preterm birth. Due to the lack of effective preventive and treatment strategies, BPD currently represents a major therapeutic challenge that requires continued research efforts at the basic, translational, and clinical levels. However, not all very low birth weight premature babies develop BPD, which suggests that in addition to known gestational age and intrauterine and extrauterine risk factors, other unknown factors must be involved in this disease's development. One of the main goals in BPD research is the early prediction of very low birth weight infants who are at risk of developing BPD in order to initiate the adequate preventive strategies. Other benefits of determining the risk of BPD include providing prognostic information and stratifying infants for clinical trial enrollment. In this article, we describe new opportunities to address BPD's complex pathophysiology by identifying prognostic biomarkers and develop novel, complex in vitro human lung models in order to develop effective therapies. These therapies for protecting the immature lung from injury can be developed by taking advantage of recent scientific progress in -omics, 3D organoids, and regenerative medicine.
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13
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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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Zhang Y, Coarfa C, Dong X, Jiang W, Hayward-Piatkovskyi B, Gleghorn JP, Lingappan K. MicroRNA-30a as a candidate underlying sex-specific differences in neonatal hyperoxic lung injury: implications for BPD. Am J Physiol Lung Cell Mol Physiol 2019; 316:L144-L156. [PMID: 30382766 PMCID: PMC6383497 DOI: 10.1152/ajplung.00372.2018] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/22/2018] [Accepted: 10/29/2018] [Indexed: 02/07/2023] Open
Abstract
Premature male neonates are at a greater risk of developing bronchopulmonary dysplasia (BPD). The reasons underlying sexually dimorphic outcomes in premature neonates are not known. The role of miRNAs in mediating sex biases in BPD is understudied. Analysis of the pulmonary transcriptome revealed that a large percentage of angiogenesis-related differentially expressed genes are miR-30a targets. We tested the hypothesis that there is differential expression of miR-30a in vivo and in vitro in neonatal human pulmonary microvascular endothelial cells (HPMECs) upon exposure to hyperoxia. Neonatal male and female mice (C57BL/6) were exposed to hyperoxia [95% fraction of inspired oxygen (FiO2), postnatal day ( PND) 1-5] and euthanized on PND 7 and 21. HPMECs (18-24-wk gestation donors) were subjected to hyperoxia (95% O2 and 5% CO2) or normoxia (air and 5% CO2) up to 72 h. miR-30a expression was increased in both males and females in the acute phase ( PND 7) after hyperoxia exposure. However, at PND 21 (recovery phase), female mice showed significantly higher miR-30a expression in the lungs compared with male mice. Female HPMECs showed greater expression of miR-30a in vitro upon exposure to hyperoxia. Delta-like ligand 4 (Dll4) was an miR-30a target in HPMECs and showed sex-specific differential expression. miR-30a increased angiogenic sprouting in vitro in female HPMECs. Lastly, we show decreased expression of miR-30a and increased expression of DLL4 in human BPD lung samples compared with controls. These results support the hypothesis that miR-30a could, in part, contribute to the sex-specific molecular mechanisms in play that lead to the sexual dimorphism in BPD.
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Affiliation(s)
- Yuhao Zhang
- Department of Pediatrics, Section of Neonatology, Texas Children's Hospital, Baylor College of Medicine , Houston, Texas
| | - Cristian Coarfa
- Advanced Technology Cores, Baylor College of Medicine , Houston, Texas
| | - Xiaoyu Dong
- Department of Pediatrics, Section of Neonatology, Texas Children's Hospital, Baylor College of Medicine , Houston, Texas
| | - Weiwu Jiang
- Department of Pediatrics, Section of Neonatology, Texas Children's Hospital, Baylor College of Medicine , Houston, Texas
| | | | - Jason P Gleghorn
- Department of Biological Sciences, University of Delaware , Newark, Delaware
- Department of Biomedical Engineering, University of Delaware , Newark, Delaware
| | - Krithika Lingappan
- Department of Pediatrics, Section of Neonatology, Texas Children's Hospital, Baylor College of Medicine , Houston, Texas
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Lipoxin A 4 Attenuates Bronchopulmonary Dysplasia via Upregulation of Let-7c and Downregulation of TGF-β 1 Signaling Pathway. Inflammation 2018; 40:2094-2108. [PMID: 28819748 DOI: 10.1007/s10753-017-0649-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Transforming growth factor-β (TGF-β) superfamily members are key regulators for lung development and progress of bronchopulmonary dysplasia (BPD). The mechanisms by which lipoxin A4 (LXA4) attenuates development of BPD have not been clarified. Neonatal murine BPD models were inducted by hyperoxia treatment. Neonatal mice were exposed to room air or 85% O2 hyperoxia with or without treatment with 5S,6R-methyl-LXA4 or anti-TGF-β antibodies. Mouse lung epithelial cells (MLE-12 cells) and mouse embryonic fibroblasts (NIH/3T3 cells) were cultured in room air or 85% O2 followed by treatment of LXA4, anti-TGF-β antibodies, and let-7c mimic/anti-microRNA transfections. Treatment with 5S,6R-methyl-LXA4 and anti-TGF-β antibodies both attenuated the mice alveolar simplification induced by hyperoxia. Hyperoxia treatment significantly altered pulmonary basal mRNA and protein expressions of several important extracellular matrix (ECM) and ECM remodeling proteins including fibronectin, α-smooth muscle actin (α-SMA), tissue inhibitor of metalloproteinase-1 (TIMP-1), elastin, tenascin C, collagen I, and matrix metalloproteinase-1 (MMP-1). 5S,6R-methyl-LXA4 and anti-TGF-β antibodies suppressed the mRNA and protein expressions of TGF-β1 and TGF-βR1 but not TGF-βR2 in the lungs exposed to hyperoxia. Treatment with LXA4 and anti-TGF-β antibodies alleviated hyperoxia-induced injury of the NIH/3T3 cells identified by morphologic observation and flow cytometry, and expressions of ECM, ECM remodeling proteins, and TGF-β1 signaling pathway, but reversed by transfection with let-7c anti-miRNA. LXA4 upregulated the let-7c expression in MLE-12 cells, transfection with let-7c anti-miRNA, inhibited the LXA4-induced let-7c expression in MLE-12 cells exposed to hyperoxia and reduced the relative luciferase activity of let-7c binding with let-7c binding sites of the TGF-βR1 3' UTR. Treatment with 5S,6R-methyl-LXA4 and anti-TGF-β antibodies significantly improved histology, ECM, and ECM remodeling proteins in the lungs isolated from the murine BPD model induced by hyperoxia. The LXA4-imparted protective effects on hyperoxia-induced lung injury are mediated by upregulation of let-7c and inhibition of TGF-β1 and subsequent downregulation of TGF-β1 signaling pathway.
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16
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Hyperoxia causes miR-34a-mediated injury via angiopoietin-1 in neonatal lungs. Nat Commun 2017; 8:1173. [PMID: 29079808 PMCID: PMC5660088 DOI: 10.1038/s41467-017-01349-y] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 09/11/2017] [Indexed: 01/07/2023] Open
Abstract
Hyperoxia-induced acute lung injury (HALI) is a key contributor to the pathogenesis of bronchopulmonary dysplasia (BPD) in neonates, for which no specific preventive or therapeutic agent is available. Here we show that lung micro-RNA (miR)-34a levels are significantly increased in lungs of neonatal mice exposed to hyperoxia. Deletion or inhibition of miR-34a improves the pulmonary phenotype and BPD-associated pulmonary arterial hypertension (PAH) in BPD mouse models, which, conversely, is worsened by miR-34a overexpression. Administration of angiopoietin-1, which is one of the downstream targets of miR34a, is able to ameliorate the BPD pulmonary and PAH phenotypes. Using three independent cohorts of human samples, we show that miR-34a expression is increased in type 2 alveolar epithelial cells in neonates with respiratory distress syndrome and BPD. Our data suggest that pharmacologic miR-34a inhibition may be a therapeutic option to prevent or ameliorate HALI/BPD in neonates.
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Duan J, Zhang X, Zhang S, Hua S, Feng Z. miR-206 inhibits FN1 expression and proliferation and promotes apoptosis of rat type II alveolar epithelial cells. Exp Ther Med 2017; 13:3203-3208. [PMID: 28587394 PMCID: PMC5450603 DOI: 10.3892/etm.2017.4430] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 12/19/2016] [Indexed: 12/24/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a syndrome of respiratory distress caused by chronic lung injury, primarily in preterm infants. miR-206 and fibronectin 1 (FN1) are associated with the development of BPD. The present study used rat type II alveolar epithelial cells (AECII) to investigate the underlying mechanisms of BPD. AECII were isolated using a primary cell culture prior to alkaline phosphatase staining and immunofluorescence of surfactant protein C (SP-C). These were used to verify the presence of AECII. AECII were then divided into four groups, which were transfected with four different plasmids. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to determine the relative expression of miR-206 in the each group. The gene and protein expression level of FN1 was detected by RT-qPCR and immunofluorescence. The proliferation of AECII in each of the four groups was evaluated using an MTT assay 48 h following transfection. The percentage of apoptotic cells was determined by flow cytometric analysis. The present study demonstrated that upregulation of miR-206 decreased the expression of FN1 (P<0.05) and low levels of miR-206 led to increased expression of FN1 (P<0.05) in AECII. Furthermore, the forced expression of miR-206 suppressed proliferation and promoted apoptosis of AECII while downregulation of miR-206 had the opposite effect (P<0.05). The results of the current study provide valuable insights into the prevention of BPD and suggest that miR-206 may be used as a potential molecular target for BPD therapy in the future.
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Affiliation(s)
- Jun Duan
- Department of Pediatrics, BaYi Children's Hospital Affiliated to Clinical Medical College in Beijing Military General Hospital of Southern Medical University, Beijing 100700, P.R. China
| | - Xiaoying Zhang
- Department of Pediatrics, BaYi Children's Hospital Affiliated to Clinical Medical College in Beijing Military General Hospital of Southern Medical University, Beijing 100700, P.R. China
| | - Sheng Zhang
- Department of Pediatrics, BaYi Children's Hospital Affiliated to Clinical Medical College in Beijing Military General Hospital of Southern Medical University, Beijing 100700, P.R. China
| | - Shaodong Hua
- Department of Pediatrics, BaYi Children's Hospital Affiliated to Clinical Medical College in Beijing Military General Hospital of Southern Medical University, Beijing 100700, P.R. China
| | - Zhichun Feng
- Department of Pediatrics, BaYi Children's Hospital Affiliated to Clinical Medical College in Beijing Military General Hospital of Southern Medical University, Beijing 100700, P.R. China
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18
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Abstract
The pathogenesis of Bronchopulmonary Dysplasia (BPD) is multifactorial and the clinical phenotype of BPD is extremely variable. Predicting BPD is difficult, as it is a disease with a clinical operational definition but many clinical phenotypes and endotypes. Most biomarkers studied over the years have low predictive accuracy, and none are currently used in routine clinical care or shown to be useful for predicting longer-term respiratory outcome. Targeted cellular and humoral biomarkers and novel systems biology 'omic' based approaches including genomic and microbiomic analyses are described in this review.
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Abstract
RATIONALE Bronchopulmonary dysplasia remains a significant cause of neonatal morbidity; however, the identification of novel targets to predict or prevent the development of bronchopulmonary dysplasia remains elusive. Proper microRNA (miR)-17∼92 cluster is necessary for normal lung development, and alterations in expression are reported in other pulmonary diseases. The overall hypothesis for our work is that altered miR-17∼92 cluster expression contributes to the molecular pathogenesis of bronchopulmonary dysplasia. OBJECTIVES The current studies tested the hypothesis that alterations in miR-17∼92 cluster and DNA methyltransferase expression are present in bronchopulmonary dysplasia. METHODS miR-17∼92 cluster expression, promoter methylation, and DNA methyltransferase expression were determined in autopsy lung samples obtained from premature infants who died with bronchopulmonary dysplasia, or from term/near-term infants who died from nonrespiratory causes. Expression of miR-17∼92 cluster members miR-17 and -19b was measured in plasma samples collected in the first week of life from a separate cohort of preterm infants at a second institution in whom bronchopulmonary dysplasia was diagnosed subsequently. MEASUREMENTS AND MAIN RESULTS Autopsy tissue data indicated that miR-17∼92 expression is significantly lower in bronchopulmonary dysplasia lungs and is inversely correlated with promoter methylation and DNA methyltransferase expression when compared with that of control subjects without bronchopulmonary dysplasia. Plasma sample analyses indicated that miR-17 and -19b expression was decreased in infants who subsequently developed bronchopulmonary dysplasia. CONCLUSIONS Our data are the first to demonstrate altered expression of the miR-17∼92 cluster in bronchopulmonary dysplasia. The consistency between our autopsy and plasma findings further support our working hypothesis that the miR-17∼92 cluster contributes to the molecular pathogenesis of bronchopulmonary dysplasia.
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20
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Meiners S, Hilgendorff A. Early injury of the neonatal lung contributes to premature lung aging: a hypothesis. Mol Cell Pediatr 2016; 3:24. [PMID: 27406259 PMCID: PMC4942446 DOI: 10.1186/s40348-016-0052-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 07/04/2016] [Indexed: 12/20/2022] Open
Abstract
Chronic lung disease of the newborn, also known as bronchopulmonary dysplasia (BPD), is the most common chronic lung disease in early infancy and results in an increased risk for long-lasting pulmonary impairment in the adult. BPD develops upon injury of the immature lung by oxygen toxicity, mechanical ventilation, and infections which trigger sustained inflammatory immune responses and extensive remodeling of the extracellular matrix together with dysregulated growth factor signaling. Histopathologically, BPD is characterized by impaired alveolarization, disrupted vascular development, and saccular wall fibrosis. Here, we explore the hypothesis that development of BPD involves disturbance of conserved pathways of molecular aging that may contribute to premature aging of the lung and an increased susceptibility to chronic lung diseases in adulthood.
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Affiliation(s)
- Silke Meiners
- Comprehensive Pneumology Center (CPC), Ludwig-Maximilians University, Helmholtz Zentrum München, German Center for Lung Research (DZL), Max-Lebsche-Platz 31, 81377, München, Germany.
| | - Anne Hilgendorff
- Comprehensive Pneumology Center (CPC), Ludwig-Maximilians University, Helmholtz Zentrum München, German Center for Lung Research (DZL), Max-Lebsche-Platz 31, 81377, München, Germany.,Perinatal Center Grosshadern, Dr. von Haunersches Children's Hospital, Ludwig-Maximilians University, Munich, Germany
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21
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Zhu S, He Q, Zhang R, Wang Y, Zhong W, Xia H, Yu J. Decreased expression of miR-33 in fetal lungs of nitrofen-induced congenital diaphragmatic hernia rat model. J Pediatr Surg 2016; 51:1096-100. [PMID: 27041227 DOI: 10.1016/j.jpedsurg.2016.02.083] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 02/11/2016] [Accepted: 02/22/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND The pathogenesis of congenital diaphragmatic hernia (CDH) and the causes of pulmonary hypoplasia and hypertension remain unclear. miRNAs have been identified to play important regulatory roles in pulmonary pathological processes and lung development. We carried out the study to investigate the hypothesis that specific miRNAs are expressed differently in the lungs of nitrofen-induced rats, and to explore the possible targeting genes and roles of miR-33 in the pathological process of CDH. METHODS Pregnant rats were divided into nitrofen and control group, and were exposed to nitrofen or vehicle respectively on D9. Fetuses were harvested on D21 and left lungs were dissected. 4 samples from each group underwent miRNAs microarray analysis using Agilent miRNA Array. Quantitative real-time polymerase chain reaction (qRT-PCR) was further performed to validate the miR-33 expression. RESULTS 11 miRNAs exhibited increased expression in nitrofen group compared with control (p<0.05): miR-3588, miR-382*, miR-363, miR-375, miR-487b, miR-483, miR-382, miR-495, miR-434, miR-181a, and miR-99a. 14 miRNAs showed decreased expression (p<0.05): miR-33, miR-193, miR-338, miR-30c-2*, miR-22, miR-18a, miR-532-5p, miR-28, miR-96, miR-551b, miR-141, miR-362*, miR-30a*, and miR-3559-5p. Among them, miR-33 expression was markedly decreased in CDH lungs compared to controls and the result was confirmed by qRT-PCR. CONCLUSION Decreased expression of miR-33 was found in the nitrofen-induced hypoplastic lung on D21. This finding suggests that pathogenesis of lung hypoplasia and CDH in the nitrofen model involve epigenetic layer of regulation.
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Affiliation(s)
- Shibo Zhu
- Surgical Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Qiuming He
- Surgical Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ruizhong Zhang
- Surgical Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yong Wang
- Surgical Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Wei Zhong
- Surgical Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Huimin Xia
- Surgical Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jiakang Yu
- Surgical Department, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
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Abstract
This article highlights some of the significant advances in our understanding of lung developmental biology made over the last few years, which challenge existing paradigms and are relevant to a fundamental understanding of this process. Additional comments address how these new insights may be informative for chronic lung diseases that occur, or initiate, in the neonatal period. This is not meant to be an exhaustive review of the molecular biology of lung development. For a more comprehensive, contemporary review of the cellular and molecular aspects of lung development, readers can refer to recent reviews by others.
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23
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Abstract
The pathogenesis of bronchopulmonary dysplasia (BPD) is multifactorial, and the clinical phenotype of BPD is extremely variable. Several clinical and laboratory biomarkers have been proposed for the early identification of infants at higher risk of BPD and for determination of prognosis of infants with a diagnosis of BPD. The authors review available literature on prediction tools and biomarkers of BPD, using clinical variables and biomarkers based on imaging, lung function measures, and measurements of various analytes in different body fluids that have been determined to be associated with BPD either in a targeted manner or by unbiased omic profiling.
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Affiliation(s)
- Charitharth Vivek Lal
- Division of Neonatology, Department of Pediatrics, Women and Infants Center, University of Alabama at Birmingham, 176F Suite 9380, 619 South 19th Street, Birmingham, AL 35249-7335, USA
| | - Namasivayam Ambalavanan
- Division of Neonatology, Department of Pediatrics, Women and Infants Center, University of Alabama at Birmingham, 176F Suite 9380, 619 South 19th Street, Birmingham, AL 35249-7335, USA.
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24
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Silva DMG, Nardiello C, Pozarska A, Morty RE. Recent advances in the mechanisms of lung alveolarization and the pathogenesis of bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2015; 309:L1239-72. [PMID: 26361876 DOI: 10.1152/ajplung.00268.2015] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 09/09/2015] [Indexed: 02/08/2023] Open
Abstract
Alveolarization is the process by which the alveoli, the principal gas exchange units of the lung, are formed. Along with the maturation of the pulmonary vasculature, alveolarization is the objective of late lung development. The terminal airspaces that were formed during early lung development are divided by the process of secondary septation, progressively generating an increasing number of alveoli that are of smaller size, which substantially increases the surface area over which gas exchange can take place. Disturbances to alveolarization occur in bronchopulmonary dysplasia (BPD), which can be complicated by perturbations to the pulmonary vasculature that are associated with the development of pulmonary hypertension. Disturbances to lung development may also occur in persistent pulmonary hypertension of the newborn in term newborn infants, as well as in patients with congenital diaphragmatic hernia. These disturbances can lead to the formation of lungs with fewer and larger alveoli and a dysmorphic pulmonary vasculature. Consequently, affected lungs exhibit a reduced capacity for gas exchange, with important implications for morbidity and mortality in the immediate postnatal period and respiratory health consequences that may persist into adulthood. It is the objective of this Perspectives article to update the reader about recent developments in our understanding of the molecular mechanisms of alveolarization and the pathogenesis of BPD.
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Affiliation(s)
- Diogo M G Silva
- Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany; Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Claudio Nardiello
- Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany; Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Agnieszka Pozarska
- Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany; Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Rory E Morty
- Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany; Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
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25
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Choriodecidual Group B Streptococcal Infection Induces miR-155-5p in the Fetal Lung in Macaca nemestrina. Infect Immun 2015. [PMID: 26195546 DOI: 10.1128/iai.00695-15] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The mechanisms underlying fetal lung injury remain poorly defined. MicroRNAs (miRNAs) are small noncoding, endogenous RNAs that regulate gene expression and have been implicated in the pathogenesis of lung disease. Using a nonhuman primate model of choriodecidual infection, we sought to determine if differentially expressed miRNAs were associated with acute fetal lung injury. After inoculating 10 chronically catheterized pregnant monkeys (Macaca nemestrina) with either group B streptococcus (GBS) at 1 × 10(6) CFU (n = 5) or saline (n = 5) in the choriodecidual space, we extracted fetal lung mRNA and miRNA and profiled the changes in expression by microarray analysis. We identified 9 differentially expressed miRNAs in GBS-exposed fetal lungs, but of these, only miR-155-5p was validated by quantitative reverse transcription-PCR (P = 0.02). Significantly elevated miR-155-5p expression was also observed when immortalized human fetal airway epithelial (FeAE) cells were exposed to proinflammatory cytokines (interleukin-6 [IL-6] and tumor necrosis factor alpha [TNF-α]). Overexpression of miR-155-5p in FeAE cells in turn increased the production of IL-6 and CXCL10/gamma interferon-induced protein 10, which are implicated in leukocyte recruitment but also in protection from lung injury. Interestingly, while miR-155-5p decreased fibroblast growth factor 9 (FGF9) expression in a luciferase reporter assay, FGF9 levels were actually increased in GBS-exposed fetal lungs in vivo. FGF9 overexpression is associated with abnormal lung development. Thus, upregulation of miR-155-5p may serve as a compensatory mechanism to lessen the increase in FGF9 and prevent aberrant lung development. Understanding the complicated networks regulating lung development in the setting of infection is a key step in identifying how to prevent fetal lung injury leading to bronchopulmonary dysplasia.
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26
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Abstract
Bronchopulmonary dysplasia (BPD), the chronic lung disease associated with preterm birth, results from the disruption of normal pulmonary vascular and alveolar growth. Though BPD was once described as primarily due to postnatal injury from mechanical ventilation and oxygen therapy after preterm birth, it is increasingly appreciated that BPD results from antenatal and perinatal factors that interrupt lung development in infants born at the extremes of prematurity. The lung in BPD consists of a simplified parenchymal architecture that limits gas exchange and leads to increased cardiopulmonary morbidity and mortality. This review outlines recent advances in the understanding of pulmonary vascular development and describes how the disruption of these mechanisms results in BPD. We point to future therapies that may augment postnatal vascular growth to prevent and treat this severe chronic lung disease.
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Affiliation(s)
- Christopher D Baker
- Pediatric Heart Lung Center, Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colo., USA
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