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Omar SA, Abdul-Hafez A, Ibrahim S, Pillai N, Abdulmageed M, Thiruvenkataramani RP, Mohamed T, Madhukar BV, Uhal BD. Stem-Cell Therapy for Bronchopulmonary Dysplasia (BPD) in Newborns. Cells 2022; 11:cells11081275. [PMID: 35455954 PMCID: PMC9025385 DOI: 10.3390/cells11081275] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/30/2022] [Accepted: 04/07/2022] [Indexed: 11/17/2022] Open
Abstract
Premature newborns are at a higher risk for the development of respiratory distress syndrome (RDS), acute lung injury (ALI) associated with lung inflammation, disruption of alveolar structure, impaired alveolar growth, lung fibrosis, impaired lung angiogenesis, and development of bronchopulmonary dysplasia (BPD) with severe long-term developmental adverse effects. The current therapy for BPD is limited to supportive care including high-oxygen therapy and pharmacotherapy. Recognizing more feasible treatment options to improve lung health and reduce complications associated with BPD is essential for improving the overall quality of life of premature infants. There is a reduction in the resident stem cells in lungs of premature infants with BPD, which strongly suggests a critical role of stem cells in BPD pathogenesis; this warrants the exploration of the potential therapeutic use of stem-cell therapy. Stem-cell-based therapies have shown promise for the treatment of many pathological conditions including acute lung injury and BPD. Mesenchymal stem cells (MSCs) and MSC-derived extracellular vesicles (EVs) including exosomes are promising and effective therapeutic modalities for the treatment of BPD. Treatment with MSCs and EVs may help to reduce lung inflammation, improve pulmonary architecture, attenuate pulmonary fibrosis, and increase the survival rate.
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Affiliation(s)
- Said A. Omar
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (A.A.-H.); (S.I.); (N.P.); (M.A.); (R.P.T.); (T.M.); (B.V.M.)
- Regional Neonatal Intensive Care Unit, Sparrow Health System, Lansing, MI 48912, USA
- Correspondence: ; Tel.: +1-517-364-2948
| | - Amal Abdul-Hafez
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (A.A.-H.); (S.I.); (N.P.); (M.A.); (R.P.T.); (T.M.); (B.V.M.)
| | - Sherif Ibrahim
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (A.A.-H.); (S.I.); (N.P.); (M.A.); (R.P.T.); (T.M.); (B.V.M.)
| | - Natasha Pillai
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (A.A.-H.); (S.I.); (N.P.); (M.A.); (R.P.T.); (T.M.); (B.V.M.)
| | - Mohammed Abdulmageed
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (A.A.-H.); (S.I.); (N.P.); (M.A.); (R.P.T.); (T.M.); (B.V.M.)
- Regional Neonatal Intensive Care Unit, Sparrow Health System, Lansing, MI 48912, USA
| | - Ranga Prasanth Thiruvenkataramani
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (A.A.-H.); (S.I.); (N.P.); (M.A.); (R.P.T.); (T.M.); (B.V.M.)
- Regional Neonatal Intensive Care Unit, Sparrow Health System, Lansing, MI 48912, USA
| | - Tarek Mohamed
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (A.A.-H.); (S.I.); (N.P.); (M.A.); (R.P.T.); (T.M.); (B.V.M.)
- Regional Neonatal Intensive Care Unit, Sparrow Health System, Lansing, MI 48912, USA
| | - Burra V. Madhukar
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (A.A.-H.); (S.I.); (N.P.); (M.A.); (R.P.T.); (T.M.); (B.V.M.)
| | - Bruce D. Uhal
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA;
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Huang LT, Chou HC, Chen CM. Roxadustat attenuates hyperoxia-induced lung injury by upregulating proangiogenic factors in newborn mice. Pediatr Neonatol 2021; 62:369-378. [PMID: 33865748 DOI: 10.1016/j.pedneo.2021.03.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 01/28/2021] [Accepted: 03/17/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Premature infants who require oxygen therapy for respiratory distress syndrome often develop bronchopulmonary dysplasia, a chronic lung disease characterized by interrupted alveologenesis. Disrupted angiogenesis inhibits alveologenesis; however, the mechanisms through which disrupted angiogenesis affects lung development are poorly understood. Hypoxia-inducible factors (HIFs) are transcription factors that activate multiple oxygen-sensitive genes, including those encoding for vascular endothelial growth factor (VEGF). However, the HIF modulation of angiogenesis in hyperoxia-induced lung injury is not fully understood. Therefore, we explored the effects of roxadustat, an HIF stabilizer that has been shown to promote angiogenesis, in regulating pulmonary angiogenesis on hyperoxia exposure. METHODS C57BL6 mice pups reared in room air and 85% O2 were injected with phosphate-buffered saline or 5 mg/kg or 10 mg/kg roxadustat. Their daily body weight and survival rate were recorded. Their lungs were excised for histology and angiogenic factor expression analyses on postnatal Day 7. RESULTS Exposure to neonatal hyperoxia reduced body weight; survival rate; and expressions of von Willebrand factor, HIF-1α, phosphor mammalian target of rapamycin, VEGF, and endothelial nitric oxide synthase and increased the mean linear intercept values in the pups. Roxadustat administration reversed these effects. CONCLUSION Hyperoxia suppressed pulmonary vascular development and the expression of proangiogenic factors. Roxadustat promoted pulmonary angiogenesis on hyperoxia exposure by stabilizing HIF-1α and upregulating the expression of proangiogenic factors, indicating its potential in clinical and therapeutic applications.
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Affiliation(s)
- Liang-Ti Huang
- Department of Pediatrics, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hsiu-Chu Chou
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chung-Ming Chen
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Pediatrics, Taipei Medical University Hospital, Taipei, Taiwan.
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Combined Transplantation of Adipose Tissue-Derived Stem Cells and Endothelial Progenitor Cells Improve Diabetic Erectile Dysfunction in a Rat Model. Stem Cells Int 2020; 2020:2154053. [PMID: 32714394 PMCID: PMC7354671 DOI: 10.1155/2020/2154053] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 01/31/2020] [Accepted: 02/25/2020] [Indexed: 12/24/2022] Open
Abstract
Erectile dysfunction (ED) is a common complication in men suffered with diabetic mellitus. Stem cell transplantation is a promising strategy for the treatment of diabetic ED (DED). In this study, we evaluated whether combined transplantation of adipose tissue-derived stem cells (ADSCs) and endothelial progenitor cells (EPCs) could improve the erectile function of the DED rat model. DED rats were induced via intraperitoneal injection of streptozotocin (50 mg/kg), and ED was screened by apomorphine (100 mg/kg). DED rats were divided into 4 groups (n = 14 each): DED, ADSC, EPC, and ADSC/EPC group. Another 14 age-matched male SD rats with normal erectile function were served as the normal group. The normal group and the DED group were received intracavernous injection with phosphate-buffered saline (PBS). And the other groups were received intracavernous injection with ADSCs (1 × 106), EPCs (1 × 106), and ADSCs/EPCs (0.5 × 106/0.5 × 106), respectively. The total intracavernous pressure (ICP) and mean arterial pressure (MAP) were recorded at day 28 after injection. The endothelium, smooth muscle, and penile dorsal nerves were assessed within cavernoursal tissue. On day 28 after injection, the ADSC/EPC group displayed more significantly enhanced ICP and ICP/MAP than the DED or ADSC or EPC group (p < 0.05). Immunofluorescent analysis and western blot demonstrated that the improvement of erectile function in the ADSC/EPC5 group was associated with increased expression of endothelial marker (CD31) and the correction of eNOS-cGMP-NO signaling. More 5-ethynyl-2′-deoxyuridine- (EdU-) positive EPCs could be found lining in the cavernous endothelial layer in the ADSC/EPC group than the EPC group, which was attributed to the paracrine of vascular endothelial growth factor (VEGF) and stromal-derived factor-1 (SDF-1) by ADSCs. Combined transplantation of ADSCs and EPCs has a synergic effect in repairing the endothelial function of DED rats, and the underlying mechanism might be the paracrine of VEGF and SDF-1 by ADSCs, which improves the recruitment and proliferation of EPCs in the cavernosum.
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Augustine S, Cheng W, Avey MT, Chan ML, Lingappa SMC, Hutton B, Thébaud B. Are all stem cells equal? Systematic review, evidence map, and meta-analyses of preclinical stem cell-based therapies for bronchopulmonary dysplasia. Stem Cells Transl Med 2020; 9:158-168. [PMID: 31746123 PMCID: PMC6988768 DOI: 10.1002/sctm.19-0193] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 10/10/2019] [Indexed: 12/25/2022] Open
Abstract
Regenerative stem cell-based therapies for bronchopulmonary dysplasia (BPD), the most common preterm birth complication, demonstrate promise in animals. Failure to objectively appraise available preclinical data and identify knowledge gaps could jeopardize clinical translation. We performed a systematic review and network meta-analysis (NMA) of preclinical studies testing cell-based therapies in experimental neonatal lung injury. Fifty-three studies assessing 15 different cell-based therapies were identified: 35 studied the effects of mesenchymal stromal cells (MSCs) almost exclusively in hyperoxic rodent models of BPD. Exploratory NMAs, for select outcomes, suggest that MSCs are the most effective therapy. Although a broad range of promising cell-based therapies has been assessed, few head-to-head comparisons and unclear risk of bias exists. Successful clinical translation of cell-based therapies demands robust preclinical experimental design with appropriately blinded, randomized, and statistically powered studies, based on biological plausibility for a given cell product, in standardized models and endpoints with transparent reporting.
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Affiliation(s)
- Sajit Augustine
- Division of NeonatologyWindsor Regional HospitalWindsorOntarioCanada
- Department of Pediatrics, Schulich Medicine & DentistryWestern UniversityLondonOntarioCanada
| | - Wei Cheng
- Ottawa Hospital Research InstituteOttawaOntarioCanada
| | | | - Monica L. Chan
- Department of NeonatologyChildren's Hospital of Eastern OntarioOttawaOntarioCanada
| | | | - Brian Hutton
- Ottawa Hospital Research InstituteOttawaOntarioCanada
- School of Epidemiology, Public Health and Preventive Medicine, Faculty of Medicine, University of OttawaOttawaOntarioCanada
| | - Bernard Thébaud
- Ottawa Hospital Research InstituteOttawaOntarioCanada
- Department of NeonatologyChildren's Hospital of Eastern OntarioOttawaOntarioCanada
- Department of PediatricsChildren's Hospital of Eastern Ontario Research Institute, University of OttawaOttawaOntarioCanada
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Zhang X, Lu A, Li Z, Sun J, Dai D, Qian L. Exosomes secreted by endothelial progenitor cells improve the bioactivity of pulmonary microvascular endothelial cells exposed to hyperoxia in vitro. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:254. [PMID: 31355221 DOI: 10.21037/atm.2019.05.10] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Paracrine factors secreted by endothelial progenitor cells (EPCs) are suggested to be responsible, in part, for the improved microvascular development in bronchopulmonary dysplasia (BPD) models. This study aims to investigate the potential role of exosomes derived from EPCs (EPC-EXOs), a component of paracrine secretion, in angiogenesis by mediating the activity of PMVECs exposed to hyperoxia. Methods EPCs were isolated from bone marrow of rats. EPC-EXOs were isolated by ExoQuick-TC kits from the conditioned media of EPCs. The PMVECs were divided into three groups, including the normal group, the hyperoxia group (exposed to 85% O2) and the EPC-EXOs treatment group (exposed to 85% O2 and EPC-EXOs with the concentration of 100 µg/mL). The activities of proliferation, migration and tube formation of PMVECs were detected at the endpoint. The mRNA and protein expression levels of VEGF, VEGFR2 and eNOS in different groups were detected by real-time quantitative PCR and western blot. Results We found EPC-EXOs exhibited a cup or biconcave morphology, with the size ranging from 30 to 150 nm, and positive for the characteristic exosomal surface marker proteins, CD63 and TSG101. Comparing to the control group, Hyperoxic stress impaired the proliferation, migration, and tubule formation of PMVECs, and decreased the expression of endothelial nitric oxide synthase (eNOS), vascular endothelial growth factor (VEGF), and vascular endothelial growth factor receptor 2 (VEGFR-2) of PMVECs. Comparing to the hyperoxia group, EPC-EXOs treatment enhanced the bioactivity of PMVECs in vitro, and increased the expression of eNOS, VEGF and VEGFR2. Conclusions Our data demonstrate EPCs secrete exosomes that have independent angiogenic activity in vitro. This may help explain in part the protective effects of EPCs on hyperoxic injury in the developing lung vasculature and may represent a promising therapeutic strategy for BPD.
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Affiliation(s)
- Xiaomei Zhang
- Respiratory Department, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Aizhen Lu
- Respiratory Department, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Zhi Li
- The Children's Hospital of Zhejiang University, School of Medicine, Hangzhou 310052, China
| | - Jiali Sun
- Respiratory Department, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Dan Dai
- Respiratory Department, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Liling Qian
- Respiratory Department, Children's Hospital of Fudan University, Shanghai 201102, China
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Loering S, Cameron GJM, Starkey MR, Hansbro PM. Lung development and emerging roles for type 2 immunity. J Pathol 2019; 247:686-696. [PMID: 30506724 DOI: 10.1002/path.5211] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/06/2018] [Accepted: 11/26/2018] [Indexed: 12/12/2022]
Abstract
Lung development is a complex process mediated through the interaction of multiple cell types, factors and mediators. In mice, it starts as early as embryonic day 9 and continues into early adulthood. The process can be separated into five different developmental stages: embryonic, pseudoglandular, canalicular, saccular, and alveolar. Whilst lung bud formation and branching morphogenesis have been studied extensively, the mechanisms of alveolarisation are incompletely understood. Aberrant lung development can lead to deleterious consequences for respiratory health such as bronchopulmonary dysplasia (BPD), a disease primarily affecting preterm neonates, which is characterised by increased pulmonary inflammation and disturbed alveolarisation. While the deleterious effects of type 1-mediated inflammatory responses on lung development have been well established, the role of type 2 responses in postnatal lung development remains poorly understood. Recent studies indicate that type 2-associated immune cells, such as group 2 innate lymphoid cells and alveolar macrophages, are increased in number during postnatal alveolarisation. Here, we present the current state of understanding of the postnatal stages of lung development and the key cell types and mediators known to be involved. We also provide an overview of how stem cells are involved in lung development and regeneration, and the negative influences of respiratory infections. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Svenja Loering
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Guy J M Cameron
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Malcolm R Starkey
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Philip M Hansbro
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia.,Center for Inflammation, Centenary Institute and The School of Life Sciences, University of Technology, Sydney, New South Wales, Australia
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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: 104] [Impact Index Per Article: 14.9] [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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Greenough A, Papalexopoulou N. The roles of drug therapy given via the endotracheal tube to neonates. Arch Dis Child Fetal Neonatal Ed 2017; 102:F277-F281. [PMID: 28270430 DOI: 10.1136/archdischild-2016-311711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 02/01/2017] [Accepted: 02/04/2017] [Indexed: 11/04/2022]
Abstract
Many drugs are given to intubated neonates by the inhalation route. The optimum aerosol delivery system, however, has not been identified and there are many challenges in delivering drugs effectively to the lower airways of intubated neonates. The effectiveness of surfactant in prematurely born infants and nitric oxide has been robustly investigated. Other drugs are being used on very limited evidence.
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Affiliation(s)
- Anne Greenough
- Division of Asthma, Allergy and Lung Biology, MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, London, UK.,NIHR Biomedical Research Centre at Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| | - Niovi Papalexopoulou
- Division of Asthma, Allergy and Lung Biology, MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, London, UK
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Lesage F, Jimenez J, Toelen J, Deprest J. Preclinical evaluation of cell-based strategies to prevent or treat bronchopulmonary dysplasia in animal models: a systematic review. J Matern Fetal Neonatal Med 2017; 31:958-966. [PMID: 28277906 DOI: 10.1080/14767058.2017.1301927] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bronchopulmonary dysplasia (BPD) remains the most common complication of extreme prematurity as no effective treatment is available to date. This calls for the exploration of new therapeutic options like cell therapy, which is already effective for various human (lung) disorders. We systematically searched the MEDLINE, Embase, and Web of Science databases from the earliest date till January 2017 and included original studies on the perinatal use of cell-based therapies (i.e. cells and/or cell-derivatives) to treat BDP in animal models. Fourth publications describing 47 interventions were retrieved. Newborn mice/rats raised in a hyperoxic environment were studied in most interventions. Different cell types - either intact cells or their conditioned medium - were administered, but bone marrow and umbilical cord blood derived mesenchymal stem cells were most prevalent. All studies reported positive effects on outcome parameters including alveolar and vascular morphometry, lung function, and inflammation. Cell homing to the lungs was demonstrated in some studies, but the therapeutic effects seemed to be mostly mediated via paracrine modulation of inflammation, fibrosis and angiogenesis. CONCLUSION Multiple rat/mouse studies show promise for cell therapy for BPD. Yet careful study of action mechanisms and side effects in large animal models is imperative before clinical translation can be achieved.
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Affiliation(s)
- Flore Lesage
- a Department of Development and Regeneration, Group Biomedical Sciences , KU Leuven , Leuven , Belgium
| | - Julio Jimenez
- a Department of Development and Regeneration, Group Biomedical Sciences , KU Leuven , Leuven , Belgium.,b Department of Obstetrics and Gynaecology , Clínica Alemana Universidad del Desarrollo , Santiago , Chile
| | - Jaan Toelen
- a Department of Development and Regeneration, Group Biomedical Sciences , KU Leuven , Leuven , Belgium.,c Department of Pediatrics , University Hospitals Leuven , Leuven , Belgium
| | - Jan Deprest
- a Department of Development and Regeneration, Group Biomedical Sciences , KU Leuven , Leuven , Belgium.,d Research Department of Maternal Fetal Medicine , UCL Institute for Women's Health (IWH), University College London , London , United Kingdom
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Ma L, Zhou P, Neu J, Lin HC. Potential Nutrients for Preventing or Treating Bronchopulmonary Dysplasia. Paediatr Respir Rev 2017; 22:83-88. [PMID: 27843119 DOI: 10.1016/j.prrv.2016.08.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 08/01/2016] [Accepted: 08/29/2016] [Indexed: 10/21/2022]
Abstract
Bronchopulmonary dysplasia (BPD) is a frequent complication occurring in extremely preterm infants. Despite recent advances in newborn medicine, the incidence of BPD does not appear to have changed markedly, and specific treatments and prevention strategies are still lacking. Nutrition plays an important role in normal lung development and maturation. Malnutrition may delay somatic growth and new alveoli development, thus aggravating pulmonary injury involved in the pathogenesis of BPD. However, few nutrients have been investigated for their potential to mitigate the pathogenesis of BPD. In this article, we reviewed the recent progress in research on potential nutrients useful for the prevention or treatment of BPD, including glutamine, cysteine and N-acetylcysteine, L-arginine and L-citrulline, long chain polyunsaturated fatty acids (LCPUFAs), inositol, selenium, and some antioxidant vitamins including vitamin A. Current evidence shows that vitamin A and LCPUFA can prevent BPD, and that L-citrulline might provide a new method to treat chronic pulmonary hypertension associated with BPD in premature infants. The effects of other nutrients on BPD prevention need to be further studied.
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Affiliation(s)
- Liya Ma
- Department of Neonatology, Shenzhen Baoan Maternal and Child Health Hospital, China.
| | - Ping Zhou
- Department of Neonatology, Shenzhen Baoan Maternal and Child Health Hospital, China.
| | - Josef Neu
- Department of Pediatrics, University of Florida, U.S.A..
| | - Hung-Chih Lin
- Department of Pediatrics, Children's Hospital and School of Chinese Medicine, China Medical University, Taichung, Taiwan.
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Ling R, Greenough A. Advances in emerging treatment options to prevent bronchopulmonary dysplasia. Expert Opin Orphan Drugs 2017. [DOI: 10.1080/21678707.2017.1281736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
Hyperoxic acute lung injury (HALI) refers to the damage to the lungs secondary to exposure to elevated oxygen partial pressure. HALI has been a concern in clinical practice with the development of deep diving and the use of normobaric as well as hyperbaric oxygen in clinical practice. Although the pathogenesis of HALI has been extensively studied, the findings are still controversial. Nitric oxide (NO) is an intercellular messenger and has been considered as a signaling molecule involved in many physiological and pathological processes. Although the role of NO in the occurrence and development of pulmonary diseases including HALI has been extensively studied, the findings on the role of NO in HALI are conflicting. Moreover, inhalation of NO has been approved as a therapeutic strategy for several diseases. In this paper, we briefly summarize the role of NO in the pathogenesis of HALI and the therapeutic potential of inhaled NO in HALI.
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Affiliation(s)
- Wen-Wu Liu
- Department of Diving and Hyperbaric Medicine, Secondary Military Medical University, Shanghai, China
| | - Cui-Hong Han
- Department of Pathology, the First Hospital of Jining City, Jining, Shandong Province, China
| | - Pei-Xi Zhang
- Department of Cardiothoracic Surgery, the First Hospital of Jining City, Jining, Shandong Province, China
| | - Juan Zheng
- Department of Diving and Hyperbaric Medicine, Secondary Military Medical University, Shanghai, China
| | - Kan Liu
- Department of Diving and Hyperbaric Medicine, Secondary Military Medical University, Shanghai, China
| | - Xue-Jun Sun
- Department of Diving and Hyperbaric Medicine, Secondary Military Medical University, Shanghai, China
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