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Li H, Huang Z, Yang C, Han D, Wang X, Qiu X, Zhang Z, Chen X. Association between plasma lysophosphatidic acid levels and bronchopulmonary dysplasia in extremely preterm infants: A prospective study. Pediatr Pulmonol 2023; 58:3516-3522. [PMID: 37712600 DOI: 10.1002/ppul.26685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 08/19/2023] [Accepted: 09/05/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND Lysophosphatidic acid (LPA) is implicated in bronchopulmonary dysplasia (BPD) pathogenesis, but clinical evidence is lacking. This study aimed to investigate LPA levels in preterm infants with and without BPD and explore LPA as a biomarker for predicting BPD occurrence. METHODS Premature infants with a gestational age of <28 weeks or a birth weight of <1000 g were enrolled. Blood samples were collected at postnatal day (PD) 7, 28, and postmenstrual age (PMA) 36 weeks, and plasma LPA levels were measured using a commercial ELISA kit. Receiver operating characteristic curve (ROC) curve analysis determined the PD 28 cutoff for LPA, and multivariable regression analyzed LPA's independent contribution to BPD and exploratory outcomes. RESULT Among the 91 infants enrolled in this study, 35 were classified into the non-BPD group and 56 into the BPD group. Infants with BPD had higher plasma LPA levels at PD 28 (6.467 vs. 4.226 μg/mL, p = 0.034) and PMA 36 weeks (2.330 vs. 1.636 μg/mL, p = 0.001). PD 28 LPA level of 6.132 μg/mL was the cutoff for predicting BPD development. Higher PD 28 LPA levels (≥6.132 μg/mL) independently associated with BPD occurrence (OR 3.307, 95% CI 1.032-10.597, p = 0.044). Higher LPA levels correlated with longer oxygen therapy durations [regression coefficients (β) 0.147, 95% CI 0.643-16.133, p = .034]. CONCLUSIONS Infants with BPD had higher plasma LPA levels at PD 28 and PMA 36 weeks. Higher PD 28 LPA levels independently associated with an increased BPD risk.
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Affiliation(s)
- Huitao Li
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Neonatology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
- Department of Cardiac Pediatrics, Guangdong Provincial Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zilu Huang
- Department of Neonatology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Chuanzhong Yang
- Department of Neonatology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Dongshan Han
- Department of Neonatology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Xuan Wang
- Department of Neonatology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Xiaomei Qiu
- Department of Neonatology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Zhiwei Zhang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Department of Cardiac Pediatrics, Guangdong Provincial Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xueyu Chen
- Department of Neonatology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
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Jiang S, Yang H, Li M. Emerging Roles of Lysophosphatidic Acid in Macrophages and Inflammatory Diseases. Int J Mol Sci 2023; 24:12524. [PMID: 37569902 PMCID: PMC10419859 DOI: 10.3390/ijms241512524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
Lysophosphatidic acid (LPA) is a bioactive phospholipid that regulates physiological and pathological processes in numerous cell biological functions, including cell migration, apoptosis, and proliferation. Macrophages are found in most human tissues and have multiple physiological and pathological functions. There is growing evidence that LPA signaling plays a significant role in the physiological function of macrophages and accelerates the development of diseases caused by macrophage dysfunction and inflammation, such as inflammation-related diseases, cancer, atherosclerosis, and fibrosis. In this review, we summarize the roles of LPA in macrophages, analyze numerous macrophage- and inflammation-associated diseases triggered by LPA, and discuss LPA-targeting therapeutic strategies.
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Affiliation(s)
- Shufan Jiang
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China;
- Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Huili Yang
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China;
| | - Mingqing Li
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China;
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China
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3
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Yanagida K, Shimizu T. Lysophosphatidic acid, a simple phospholipid with myriad functions. Pharmacol Ther 2023; 246:108421. [PMID: 37080433 DOI: 10.1016/j.pharmthera.2023.108421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 04/22/2023]
Abstract
Lysophosphatidic acid (LPA) is a simple phospholipid consisting of a phosphate group, glycerol moiety, and only one hydrocarbon chain. Despite its simple chemical structure, LPA plays an important role as an essential bioactive signaling molecule via its specific six G protein-coupled receptors, LPA1-6. Recent studies, especially those using genetic tools, have revealed diverse physiological and pathological roles of LPA and LPA receptors in almost every organ system. Furthermore, many studies are illuminating detailed mechanisms to orchestrate multiple LPA receptor signaling pathways and to facilitate their coordinated function. Importantly, these extensive "bench" works are now translated into the "bedside" as exemplified by approaches targeting LPA1 signaling to combat fibrotic diseases. In this review, we discuss the physiological and pathological roles of LPA signaling and their implications for clinical application by focusing on findings revealed by in vivo studies utilizing genetic tools targeting LPA receptors.
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Affiliation(s)
- Keisuke Yanagida
- Department of Lipid Life Science, National Center for Global Health and Medicine, Tokyo, Japan.
| | - Takao Shimizu
- Department of Lipid Life Science, National Center for Global Health and Medicine, Tokyo, Japan; Institute of Microbial Chemistry, Tokyo, Japan
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Lysophospholipids in Lung Inflammatory Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1303:373-391. [PMID: 33788203 DOI: 10.1007/978-3-030-63046-1_20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The lysophospholipids (LPLs) belong to a group of bioactive lipids that play pivotal roles in several physiological and pathological processes. LPLs are derivatives of phospholipids and consist of a single hydrophobic fatty acid chain, a hydrophilic head, and a phosphate group with or without a large molecule attached. Among the LPLs, lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P) are the simplest, and have been shown to be involved in lung inflammatory symptoms and diseases such as acute lung injury, asthma, and chronic obstructive pulmonary diseases. G protein-coupled receptors (GPCRs) mediate LPA and S1P signaling. In this chapter, we will discuss on the role of LPA, S1P, their metabolizing enzymes, inhibitors or agonists of their receptors, and their GPCR-mediated signaling in lung inflammatory symptoms and diseases, focusing specially on acute respiratory distress syndrome, asthma, and chronic obstructive pulmonary disease.
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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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6
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Yanagida K, Valentine WJ. Druggable Lysophospholipid Signaling Pathways. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1274:137-176. [DOI: 10.1007/978-3-030-50621-6_7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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7
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miR-200a-3p modulates gene expression in comorbid pain and depression: Molecular implication for central sensitization. Brain Behav Immun 2019; 82:230-238. [PMID: 31479730 DOI: 10.1016/j.bbi.2019.08.190] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/18/2019] [Accepted: 08/26/2019] [Indexed: 12/20/2022] Open
Abstract
Chronic pain and depression are often comorbid exhibiting common clinical presentations and biological connections related to central nervous system sensitization. Epigenetic regulation of gene expression in the brain plays a crucial role in response to long-lasting stress and chronic pain, and microRNA imbalance in the prefrontal cortex (PFC) might be involved in central sensitization. Male Sprague Dawley rats were subjected to unpredictable chronic mild stress (UCMS) and spared nerve injury (SNI) to initiate depressive-like behavior and chronic pain behavior, respectively. The next-generation sequencing technique was employed to analyze PFC microRNAs in both the UCMS and SNI models. Rats exposed to either UCMS or SNI exhibited both depressive-like and chronic pain behaviors. Five specific microRNAs (miR-10a-5p, miR-182, miR-200a-3p, miR-200b-3p, and miR-429) were simultaneously down-regulated in the depressive-like and chronic pain models after 4 weeks of short-term stress. Gene ontology revealed that the 4-week period of stress enhanced neurogenesis. Only the miR-200a-3p level was continuously elevated under prolonged stress, suggesting roles of reduced neurogenesis, inflammatory activation, disturbed circadian rhythm, lipid metabolism, and insulin secretion in the co-existence of pain and depression. Thus we conclude that miR-200a-3p might be a specific biomarker of central sensitization in chronic pain and depression.
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Li M, Lv Y, Chen F, Wang X, Zhu J, Li H, Xiao J. Co-stimulation of LPAR 1 and S1PR 1/3 increases the transplantation efficacy of human mesenchymal stem cells in drug-induced and alcoholic liver diseases. Stem Cell Res Ther 2018; 9:161. [PMID: 29898789 PMCID: PMC6000942 DOI: 10.1186/s13287-018-0860-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 03/13/2018] [Accepted: 04/03/2018] [Indexed: 02/08/2023] Open
Abstract
Background One of the major obstacles facing stem cell therapy is the limited number of functional stem cells available after transplantation due to the harsh microenvironment surrounding the damaged tissue. The aim of this study was to delineate the mechanistic involvement of lysophosphatidic acid receptors (LPARs) and sphingosine-1-phosphate receptors (S1PRs) in the regulation of anti-stress and transplantation efficacy of stem cells. Methods Human adipose-derived mesenchymal stem cells (hADMSCs) were treated with chemical toxin or ethanol to induce cell stress. Lysophosphatidic acid (LPA) and/or sphingosine-1-phosphate (S1P) were co-treated to examine their protective effects and mechanisms on stem cell damage. Acute liver failure and alcoholic liver disease murine models were also established to test the transplantation efficacy of hADMSCs with or without LPA/S1P pre-incubation. Results Co-stimulation of LPAR1 by LPA and S1PR1/3 by S1P synergistically enhanced the anti-stress ability of hADMSCs induced by chemical or ethanol incubation in vitro. Downstream pathways involved in this process included the Gi protein (but not the G12/13 proteins), the RAS/ERK pathway, and the PI3K/Akt pathway. Upon cell injury, the nuclear translocation of nuclear factor-kappa B (NF-κB) was promoted to facilitate the activation of downstream pro-inflammatory gene transcription, which was ameliorated by co-treatment with LPA and/or S1P. Increased secretion of interleukin (IL)-10 from stem cells by LPA and/or S1P seemed to be one of the major protective mechanisms since blocking IL-10 expression significantly aggravated stress-induced cell damage. In a drug-induced acute liver failure model and a chronic alcoholic liver disease model, pre-conditioning with LPA and/or S1P significantly enhanced the survival ratio and the therapeutic efficacy of hADMSCs in mice, including ameliorating histological damage, oxidative stress, inflammation, fibrosis, lipid metabolism dysfunction, and enhancing alcohol metabolizing enzyme activity. Importantly, supplementing LPA and/or S1P did not alter the basic characteristics of the hADMSCs nor induce tumour formation after cell transplantation. Conclusions Co-use of LPA and S1P represents a novel and safe strategy to enhance stem cell transplantation efficacy for future drug- and alcoholic-related liver disease therapies. Electronic supplementary material The online version of this article (10.1186/s13287-018-0860-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mianhuan Li
- Department of Gastroenterology, Clinical Medicine Research Institute, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, People's Republic of China.,State Key Discipline of Infectious Diseases, Department of Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, 518112, People's Republic of China
| | - Yi Lv
- Department of Gastroenterology, Clinical Medicine Research Institute, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, People's Republic of China
| | - Feng Chen
- State Key Discipline of Infectious Diseases, Department of Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, 518112, People's Republic of China
| | - Xiaoyan Wang
- Department of Gastroenterology, Clinical Medicine Research Institute, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, People's Republic of China
| | - Jiang Zhu
- JM Medical (Shenzhen), LLC, Shenzhen, Shenzhen, 518000, People's Republic of China
| | - Hao Li
- Department of Head and Neck Surgery, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Centre, Guangzhou, 510060, People's Republic of China.
| | - Jia Xiao
- Department of Gastroenterology, Clinical Medicine Research Institute, The First Affiliated Hospital of Jinan University, Guangzhou, 510632, People's Republic of China. .,State Key Discipline of Infectious Diseases, Department of Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, 518112, People's Republic of China. .,School of Biomedical Sciences, The University of Hong Kong, Hong Kong, Hong Kong, Special Administrative Region of China.
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Vysotskaya Z, Chidipi B, Rodgers JL, Tang X, Samal E, Kolliputi N, Mohapatra S, Bennett ES, Panguluri SK. Elevated potassium outward currents in hyperoxia treated atrial cardiomyocytes. J Cell Physiol 2017; 233:4317-4326. [PMID: 29139549 DOI: 10.1002/jcp.26263] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 10/09/2017] [Indexed: 12/18/2022]
Abstract
Supplementation of 100% oxygen is a very common intervention in intensive care units (ICU) and critical care centers for patients with dysfunctional lung and lung disorders. Although there is advantage in delivering sufficient levels of oxygen, hyperoxia is reported to be directly associated with increasing in-hospital deaths. Our previous studies reported ventricular and electrical remodeling in hyperoxia treated mouse hearts, and in this article, for the first time, we are investigating the effects of hyperoxia on atrial electrophysiology using whole-cell patch-clamp electrophysiology experiments along with assessment of Kv1.5, Kv4.2, and KChIP2 transcripts and protein profiles using real-time quantitative RT-PCR and Western blotting. Our data showed that induction of hyperoxia for 3 days in mice showed larger outward potassium currents with shorter action potential durations (APD). This increase in current densities is due to significant increase in ultrarapid delayed rectifier outward K+ currents (IKur ) and rapidly activating, rapidly inactivating transient outward K+ current (Ito ) densities. We also observed a significant increase in both transcripts and protein levels of Kv1.5 and KChIP2 in hyperoxia treated atrial cardiomyocytes, whereas no significant change was observed in Kv4.2 transcripts or protein. The data presented here further support our previous findings that hyperoxia induces not only ventricular remodeling, but also atrial electrical remodeling.
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Affiliation(s)
- Zhanna Vysotskaya
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Bojjibabu Chidipi
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Jennifer L Rodgers
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, Florida
| | - Xiaolan Tang
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Eva Samal
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Narasaiah Kolliputi
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Subhra Mohapatra
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, Florida
| | - Eric S Bennett
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Siva K Panguluri
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, Florida
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Shen L, Zhang T, Lu H. Overexpression of AGT promotes bronchopulmonary dysplasis via the JAK/STAT signal pathway. Oncotarget 2017; 8:96079-96088. [PMID: 29221188 PMCID: PMC5707082 DOI: 10.18632/oncotarget.21712] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Accepted: 07/25/2017] [Indexed: 12/25/2022] Open
Abstract
Angiotensinogen (AGT) is involved in the production of angiotensin II which is the main mediator of action of the rennin-angiotensin system (RAS), whereas the RAS mediates the regulation of sodium homeostasis, blood pressure, and inflammation. The present study aimed to investigate the roles of the AGT in the progression of broncopulmonary dysplasia in premature newborns. By bioinformatics analysis, AGT was found to be the major node in molecular interaction networks of BPD mouse model. Quantitative PCR and western blot analyses were applied to examine AGT expression in A549 cells which were treated with the hyperoxic condition. The AGT inhibitor Valsartan and the AGT agonist ANGII were employed to investigate the roles of AGT in cell growth and the inflammation. Results show that hyperoxic treatment induced upregulation of AGT expression in A549 cells. Overexpression of AGT resulted in the inflammation via the JAK/STAT signal pathway, ultimately suppressed the proliferation of the A549 cell. In conclusion, increased expression of AGT was demonstrated to be associated with the development and progression of BPD, and may be regarded as a promising therapeutic target for BPD.
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Affiliation(s)
- Lili Shen
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Pediatrics, Suzhou Kowloon Hospital Shanghai Jiao Tong University School of Medicine, Suzhou, China
| | - Tiancheng Zhang
- Institute of Reproduction and Development, Fudan University, Shanghai, China.,China National Population and Family Planning Key Laboratory of Contraceptive Drugs and Devices, Shanghai Institute of Planned Parenthood Research (SIPPR), Shanghai, China
| | - Hongyan Lu
- Department of Pediatrics, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
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Surate Solaligue DE, Rodríguez-Castillo JA, Ahlbrecht K, Morty RE. Recent advances in our understanding of the mechanisms of late lung development and bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2017; 313:L1101-L1153. [PMID: 28971976 DOI: 10.1152/ajplung.00343.2017] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/21/2017] [Accepted: 09/23/2017] [Indexed: 02/08/2023] Open
Abstract
The objective of lung development is to generate an organ of gas exchange that provides both a thin gas diffusion barrier and a large gas diffusion surface area, which concomitantly generates a steep gas diffusion concentration gradient. As such, the lung is perfectly structured to undertake the function of gas exchange: a large number of small alveoli provide extensive surface area within the limited volume of the lung, and a delicate alveolo-capillary barrier brings circulating blood into close proximity to the inspired air. Efficient movement of inspired air and circulating blood through the conducting airways and conducting vessels, respectively, generates steep oxygen and carbon dioxide concentration gradients across the alveolo-capillary barrier, providing ideal conditions for effective diffusion of both gases during breathing. The development of the gas exchange apparatus of the lung occurs during the second phase of lung development-namely, late lung development-which includes the canalicular, saccular, and alveolar stages of lung development. It is during these stages of lung development that preterm-born infants are delivered, when the lung is not yet competent for effective gas exchange. These infants may develop bronchopulmonary dysplasia (BPD), a syndrome complicated by disturbances to the development of the alveoli and the pulmonary vasculature. It is the objective of this review to update the reader about recent developments that further our understanding of the mechanisms of lung alveolarization and vascularization and the pathogenesis of BPD and other neonatal lung diseases that feature lung hypoplasia.
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Affiliation(s)
- David E Surate Solaligue
- Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany; and.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, German Center for Lung Research, Giessen, Germany
| | - José Alberto Rodríguez-Castillo
- Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany; and.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, German Center for Lung Research, Giessen, Germany
| | - Katrin Ahlbrecht
- Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany; and.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, German Center for Lung Research, Giessen, Germany
| | - Rory E Morty
- Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany; and .,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, German Center for Lung Research, Giessen, Germany
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12
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Natarajan V, Ha AW, Dong Y, Reddy NM, Ebenezer DL, Kanteti P, Reddy SP, Usha Raj J, Lei Z, Maienschein-Cline M, Arbieva Z, Harijith A. Expression profiling of genes regulated by sphingosine kinase1 signaling in a murine model of hyperoxia induced neonatal bronchopulmonary dysplasia. BMC Genomics 2017; 18:664. [PMID: 28851267 PMCID: PMC5576338 DOI: 10.1186/s12864-017-4048-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 08/10/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Sphingosine- 1-Phosphate (S1P) is a bioactive lipid and an intracellular as well as an extracellular signaling molecule. S1P ligand specifically binds to five related cell surface G-protein-coupled receptors (S1P1-5). S1P levels are tightly regulated by its synthesis catalyzed by sphingosine kinases (SphKs) 1 & 2 and catabolism by S1P phosphatases, lipid phosphate phosphatases and S1P lyase. We previously reported that knock down of SphK1 (Sphk1 -/- ) in a neonatal mouse BPD model conferred significant protection against hyperoxia induced lung injury. To better understand the underlying molecular mechanisms, genome-wide gene expression profiling was performed on mouse lung tissue using Affymetrix MoGene 2.0 array. RESULTS Two-way ANOVA analysis was performed and differentially expressed genes under hyperoxia were identified using Sphk1 -/- mice and their wild type (WT) equivalents. Pathway (PW) enrichment analyses identified several signaling pathways that are likely to play a key role in hyperoxia induced lung injury in the neonates. These included signaling pathways that were anticipated such as those involved in lipid signaling, cell cycle regulation, DNA damage/apoptosis, inflammation/immune response, and cell adhesion/extracellular matrix (ECM) remodeling. We noted hyperoxia induced downregulation of the expression of genes related to mitotic spindle formation in the WT which was not observed in Sphk1 -/- neonates. Our data clearly suggests a role for SphK1 in neonatal hyperoxic lung injury through elevated inflammation and apoptosis in lung tissue. Further, validation by RT-PCR on 24 differentially expressed genes showed 83% concordance both in terms of fold change and vectorial changes. Our findings are in agreement with previously reported human BPD microarray data and completely support our published in vivo findings. In addition, the data also revealed a significant role for additional unanticipitated signaling pathways involving Wnt and GADD45. CONCLUSION Using SphK1 knockout mice and differential gene expression analysis, we have shown here that S1P/SphK1 signaling plays a key role in promoting hyperoxia induced DNA damage, inflammation, apoptosis and ECM remodeling in neonatal lungs. It also appears to suppress pro-survival cellular responses involved in normal lung development. We therefore propose SphK1 as a therapeutic target for the development drugs to combat BPD.
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Affiliation(s)
- Viswanathan Natarajan
- Departments of Medicine, University of Illinois, Chicago, IL 60612 USA
- Department of Pharmacology, University of Illinois, Chicago, IL 60612 USA
- Department of Biochemistry and Molecular genetics, University of Illinois, Chicago, IL 60612 USA
| | - Alison W. Ha
- Departments of Medicine, University of Illinois, Chicago, IL 60612 USA
| | - Yangbasai Dong
- Departments of Medicine, University of Illinois, Chicago, IL 60612 USA
| | - Narsa M. Reddy
- Department of Pharmacology, University of Illinois, Chicago, IL 60612 USA
| | - David L. Ebenezer
- Department of Biochemistry and Molecular genetics, University of Illinois, Chicago, IL 60612 USA
| | - Prasad Kanteti
- Department of Pharmacology, University of Illinois, Chicago, IL 60612 USA
| | - Sekhar P. Reddy
- Departments of Medicine, University of Illinois, Chicago, IL 60612 USA
| | - J. Usha Raj
- Departments of Medicine, University of Illinois, Chicago, IL 60612 USA
| | - Zhengdeng Lei
- Department of Center for Research Informatics, University of Illinois at Chicago, Chicago, IL 60612 USA
| | - Mark Maienschein-Cline
- Department of Center for Research Informatics, University of Illinois at Chicago, Chicago, IL 60612 USA
| | - Zarema Arbieva
- Department of CoreGenomics Facility, University of Illinois, Chicago, IL 60612 USA
| | - Anantha Harijith
- Department of Pharmacology, University of Illinois, Chicago, IL 60612 USA
- Department of Pediatrics, University of Illinois, Room # 3140, COMRB Building, 909, South Wolcott Avenue, Chicago, IL 60612 USA
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13
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Perez M, Lee KJ, Cardona HJ, Taylor JM, Robbins ME, Waypa GB, Berkelhamer SK, Farrow KN. Aberrant cGMP signaling persists during recovery in mice with oxygen-induced pulmonary hypertension. PLoS One 2017; 12:e0180957. [PMID: 28792962 PMCID: PMC5549891 DOI: 10.1371/journal.pone.0180957] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 06/23/2017] [Indexed: 12/25/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD), a common complication of preterm birth, is associated with pulmonary hypertension (PH) in 25% of infants with moderate to severe BPD. Neonatal mice exposed to hyperoxia for 14d develop lung disease similar to BPD, with evidence of associated PH. The cyclic guanosine monophosphate (cGMP) signaling pathway has not been well studied in BPD-associated PH. In addition, there is little data about the natural history of hyperoxia-induced PH in mice or the utility of phosphodiesterase-5 (PDE5) inhibition in established disease. C57BL/6 mice were placed in room air or 75% O2 within 24h of birth for 14d, followed by recovery in room air for an additional 7 days (21d). Additional pups were treated with either vehicle or sildenafil for 7d during room air recovery. Mean alveolar area, pulmonary artery (PA) medial wall thickness (MWT), RVH, and vessel density were evaluated at 21d. PA protein from 21d animals was analyzed for soluble guanylate cyclase (sGC) activity, PDE5 activity, and cGMP levels. Neonatal hyperoxia exposure results in persistent alveolar simplification, RVH, decreased vessel density, increased MWT, and disrupted cGMP signaling despite a period of room air recovery. Delayed treatment with sildenafil during room air recovery is associated with improved RVH and decreased PA PDE5 activity, but does not have significant effects on alveolar simplification, PA remodeling, or vessel density. These data are consistent with clinical studies suggesting inconsistent effects of sildenafil treatment in infants with BPD-associated PH.
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Affiliation(s)
- Marta Perez
- Department of Pediatrics, Northwestern University, Chicago, IL, United States of America
- * E-mail:
| | - Keng Jin Lee
- Department of Pediatrics, Northwestern University, Chicago, IL, United States of America
| | - Herminio J. Cardona
- Department of Pediatrics, Northwestern University, Chicago, IL, United States of America
| | - Joann M. Taylor
- Department of Pediatrics, Northwestern University, Chicago, IL, United States of America
| | - Mary E. Robbins
- Department of Pediatrics, Northwestern University, Chicago, IL, United States of America
| | - Gregory B. Waypa
- Department of Pediatrics, Northwestern University, Chicago, IL, United States of America
| | - Sara K. Berkelhamer
- Department of Pediatrics, University at Buffalo, Buffalo, NY, United States of America
| | - Kathryn N. Farrow
- Department of Pediatrics, Northwestern University, Chicago, IL, United States of America
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14
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Chen X, Orriols M, Walther FJ, Laghmani EH, Hoogeboom AM, Hogen-Esch ACB, Hiemstra PS, Folkerts G, Goumans MJTH, Ten Dijke P, Morrell NW, Wagenaar GTM. Bone Morphogenetic Protein 9 Protects against Neonatal Hyperoxia-Induced Impairment of Alveolarization and Pulmonary Inflammation. Front Physiol 2017; 8:486. [PMID: 28751863 PMCID: PMC5507999 DOI: 10.3389/fphys.2017.00486] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 06/26/2017] [Indexed: 12/27/2022] Open
Abstract
Aim: Effective treatment of premature infants with bronchopulmonary dysplasia (BPD) is lacking. We hypothesize that bone morphogenetic protein 9 (BMP9), a ligand of the TGF-β family that binds to the activin receptor-like kinase 1 (ALK1)-BMP receptor type 2 (BMPR2) receptor complex, may be a novel therapeutic option for BPD. Therefore, we investigated the cardiopulmonary effects of BMP9 in neonatal Wistar rats with hyperoxia-induced BPD. Methods: Directly after birth Wistar rat pups were exposed to 100% oxygen for 10 days. From day 2 rat pups received BMP9 (2.5 μg/kg, twice a day) or 0.9% NaCl by subcutaneous injection. Beneficial effects of BMP9 on aberrant alveolar development, lung inflammation and fibrosis, and right ventricular hypertrophy (RVH) were investigated by morphometric analysis and cytokine production. In addition, differential mRNA expression of BMP9 and its receptor complex: ALK1, BMPR2, and Endoglin, and of the ALK1 downstream target transmembrane protein 100 (TMEM100) were studied during the development of experimental BPD. Expression of the BMP9 receptor complex and TMEM100 was studied in human endothelial and epithelial cell cultures and the effect of BMP9 on inflammatory cytokine production and TMEM100 expression was studied in endothelial cell cultures. Results:ALK1, ALK2, BMPRII, TMEM100, and Endoglin were differentially expressed in experimental BPD, suggesting a role for BMP9-dependent signaling in the development of (experimental) BPD. TMEM100 was expressed in the wall of blood vessels, showing an elastin-like expression pattern in arterioles. Expression of TMEM100 mRNA and protein was decreased after exposure to hyperoxia. BMP9 treatment of rat pups with hyperoxia-induced experimental BPD reduced alveolar enlargement, lung septal thickness and fibrosis, and prevented inflammation, but did not attenuate vascular remodeling and RVH. The anti-inflammatory effect of BMP9 was confirmed in vitro. Highest expression of ALK1, BMPR2, and TMEM100 was observed in human endothelial cell cultures. Stimulation of human endothelial cell cultures with BMP9 reduced their pro-inflammatory cytokine response and induced TMEM100 expression in pulmonary arterial endothelial cells. Conclusion: BMP9 protects against neonatal hyperoxia-induced BPD by improving aberrant alveolar development, inflammation and fibrosis, demonstrating its therapeutic potential for premature infants with severe BPD.
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Affiliation(s)
- Xueyu Chen
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands
| | - Mar Orriols
- Department of Molecular Cell Biology, Cancer Genomics Center Netherlands, Leiden University Medical CenterLeiden, Netherlands
| | - Frans J Walther
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands.,Department of Pediatrics, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical CenterTorrance, CA, United States
| | - El Houari Laghmani
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands
| | - Annemarie M Hoogeboom
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands
| | - Anne C B Hogen-Esch
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical CenterLeiden, Netherlands
| | - Gert Folkerts
- Department of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht UniversityUtrecht, Netherlands
| | - Marie-José T H Goumans
- Department of Molecular Cell Biology, Cancer Genomics Center Netherlands, Leiden University Medical CenterLeiden, Netherlands
| | - Peter Ten Dijke
- Department of Molecular Cell Biology, Cancer Genomics Center Netherlands, Leiden University Medical CenterLeiden, Netherlands
| | - Nicholas W Morrell
- Department of Medicine, University of Cambridge School of Clinical Medicine, Addenbrooke's and Papworth HospitalsCambridge, United Kingdom
| | - Gerry T M Wagenaar
- Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands
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15
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Chen X, Walther FJ, Laghmani EH, Hoogeboom AM, Hogen-Esch ACB, van Ark I, Folkerts G, Wagenaar GTM. Adult Lysophosphatidic Acid Receptor 1-Deficient Rats with Hyperoxia-Induced Neonatal Chronic Lung Disease Are Protected against Lipopolysaccharide-Induced Acute Lung Injury. Front Physiol 2017; 8:155. [PMID: 28382003 PMCID: PMC5360762 DOI: 10.3389/fphys.2017.00155] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 02/28/2017] [Indexed: 12/27/2022] Open
Abstract
Aim: Survivors of neonatal chronic lung disease or bronchopulmonary dysplasia (BPD) suffer from compromised lung function and are at high risk for developing lung injury by multiple insults later in life. Because neonatal lysophosphatidic acid receptor-1 (LPAR1)-deficient rats are protected against hyperoxia-induced lung injury, we hypothesize that LPAR1-deficiency may protect adult survivors of BPD from a second hit response against lipopolysaccharides (LPS)-induced lung injury. Methods: Directly after birth, Wistar control and LPAR1-deficient rat pups were exposed to hyperoxia (90%) for 8 days followed by recovery in room air. After 7 weeks, male rats received either LPS (2 mg kg−1) or 0.9% NaCl by intraperitoneal injection. Alveolar development and lung inflammation were investigated by morphometric analysis, IL-6 production, and mRNA expression of cytokines, chemokines, coagulation factors, and an indicator of oxidative stress. Results: LPAR1-deficient and control rats developed hyperoxia-induced neonatal emphysema, which persisted into adulthood, as demonstrated by alveolar enlargement and decreased vessel density. LPAR1-deficiency protected against LPS-induced lung injury. Adult controls with BPD exhibited an exacerbated response toward LPS with an increased expression of pro-inflammatory mRNAs, whereas LPAR1-deficient rats with BPD were less sensitive to this “second hit” with a decreased pulmonary influx of macrophages and neutrophils, interleukin-6 (IL-6) production, and mRNA expression of IL-6, monocyte chemoattractant protein-1, cytokine-induced neutrophil chemoattractant 1, plasminogen activator inhibitor-1, and tissue factor. Conclusion: LPAR1-deficient rats have increased hyperoxia-induced BPD survival rates and, despite the presence of neonatal emphysema, are less sensitive to an aggravated “second hit” than Wistar controls with BPD. Intervening in LPA-LPAR1-dependent signaling may not only have therapeutic potential for neonatal chronic lung disease, but may also protect adult survivors of BPD from sequelae later in life.
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Affiliation(s)
- Xueyu Chen
- Laboratory of Neonatology, Division of Neonatology, Department of Pediatrics, Leiden University Medical Center Leiden, Netherlands
| | - Frans J Walther
- Laboratory of Neonatology, Division of Neonatology, Department of Pediatrics, Leiden University Medical CenterLeiden, Netherlands; Department of Pediatrics, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical CenterTorrance, CA, USA
| | - El H Laghmani
- Laboratory of Neonatology, Division of Neonatology, Department of Pediatrics, Leiden University Medical Center Leiden, Netherlands
| | - Annemarie M Hoogeboom
- Laboratory of Neonatology, Division of Neonatology, Department of Pediatrics, Leiden University Medical Center Leiden, Netherlands
| | - Anne C B Hogen-Esch
- Laboratory of Neonatology, Division of Neonatology, Department of Pediatrics, Leiden University Medical Center Leiden, Netherlands
| | - Ingrid van Ark
- Department of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University Utrecht, Netherlands
| | - Gert Folkerts
- Department of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University Utrecht, Netherlands
| | - Gerry T M Wagenaar
- Laboratory of Neonatology, Division of Neonatology, Department of Pediatrics, Leiden University Medical Center Leiden, Netherlands
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16
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Alvira CM. Aberrant Pulmonary Vascular Growth and Remodeling in Bronchopulmonary Dysplasia. Front Med (Lausanne) 2016; 3:21. [PMID: 27243014 PMCID: PMC4873491 DOI: 10.3389/fmed.2016.00021] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 04/28/2016] [Indexed: 01/12/2023] Open
Abstract
In contrast to many other organs, a significant portion of lung development occurs after birth during alveolarization, thus rendering the lung highly susceptible to injuries that may disrupt this developmental process. Premature birth heightens this susceptibility, with many premature infants developing the chronic lung disease, bronchopulmonary dysplasia (BPD), a disease characterized by arrested alveolarization. Over the past decade, tremendous progress has been made in the elucidation of mechanisms that promote postnatal lung development, including extensive data suggesting that impaired pulmonary angiogenesis contributes to the pathogenesis of BPD. Moreover, in addition to impaired vascular growth, patients with BPD also frequently demonstrate alterations in pulmonary vascular remodeling and tone, increasing the risk for persistent hypoxemia and the development of pulmonary hypertension. In this review, an overview of normal lung development will be presented, and the pathologic features of arrested development observed in BPD will be described, with a specific emphasis on the pulmonary vascular abnormalities. Key pathways that promote normal pulmonary vascular development will be reviewed, and the experimental and clinical evidence demonstrating alterations of these essential pathways in BPD summarized.
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Affiliation(s)
- Cristina M Alvira
- Department of Pediatrics, Division of Critical Care Medicine, Stanford University School of Medicine , Stanford, CA , USA
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