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Zhuo R, Rong P, Wang J, Parvin R, Deng Y. The Potential Role of Bioactive Plasmalogens in Lung Surfactant. Front Cell Dev Biol 2021; 9:618102. [PMID: 33681198 PMCID: PMC7928286 DOI: 10.3389/fcell.2021.618102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/08/2021] [Indexed: 01/24/2023] Open
Abstract
Neonatal respiratory distress syndrome (NRDS) is a type of newborn disorder caused by the deficiency or late appearance of lung surfactant, a mixture of lipids and proteins. Studies have shown that lung surfactant replacement therapy could effectively reduce the morbidity and mortality of NRDS, and the therapeutic effect of animal-derived surfactant preparation, although with its limitations, performs much better than that of protein-free synthetic ones. Plasmalogens are a type of ether phospholipids present in multiple human tissues, including lung and lung surfactant. Plasmalogens are known to promote and stabilize non-lamellar hexagonal phase structure in addition to their significant antioxidant property. Nevertheless, they are nearly ignored and underappreciated in the lung surfactant-related research. This report will focus on plasmalogens, a minor yet potentially vital component of lung surfactant, and also discuss their biophysical properties and functions as anti-oxidation, structural modification, and surface tension reduction at the alveolar surface. At the end, we boldly propose a novel synthetic protein-free lung surfactant preparation with plasmalogen modification as an alternative strategy for surfactant replacement therapy.
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Affiliation(s)
- Ruijiang Zhuo
- Eye Hospital, School of Ophthalmology and Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, China
| | - Pu Rong
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Jieli Wang
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Rokshana Parvin
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Yuru Deng
- Eye Hospital, School of Ophthalmology and Optometry, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
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Daly AE, Deible CG, Lamb CE, Santacaterina SM, Marzolf NL, Page AE, Horohov DW, Wood PL, Werre SR, Chapman SE, Christmann U. Surfactant protein D concentrations in serum and bronchoalveolar lavage fluid from young healthy horses on pasture and in a barn environment. Am J Vet Res 2021; 82:152-157. [PMID: 33480279 DOI: 10.2460/ajvr.82.2.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate surfactant protein D (SP-D) concentrations in serum and bronchoalveolar lavage fluid (BALF) from young healthy horses on pasture or housed in a typical barn. ANIMALS 20 young healthy horses. PROCEDURES Horses were randomly assigned to 1 of 2 groups (pasture, n = 10; barn, 10), and serum and BALF samples were collected for SP-D determination at baseline (all horses on pasture) and 2 weeks and 4 weeks after the barn group of horses was relocated from the pasture to the barn. Other evaluations included physical and tracheoscopic examinations. Findings were compared within and between groups. RESULTS Physical and tracheoscopic examinations, CBC, and serum biochemical analysis did not reveal evidence of respiratory disease, and no significant differences were present within and between groups. Serum SP-D concentrations did not significantly differ within and between groups, but BALF SP-D concentrations were significantly lower for the barn group at 2 weeks but not at 4 weeks, compared with baseline. The BALF SP-D concentration-to-BALF total protein concentration ratio was < 1.5 and did not significantly differ within and between groups. CONCLUSIONS AND CLINICAL RELEVANCE A mild decrease was evident in the concentration of SP-D in the BALF collected from young healthy horses after 2 weeks of exposure to a barn environment. The clinical importance of this finding remains to be determined.
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Marseglia L, D'Angelo G, Granese R, Falsaperla R, Reiter RJ, Corsello G, Gitto E. Role of oxidative stress in neonatal respiratory distress syndrome. Free Radic Biol Med 2019; 142:132-137. [PMID: 31039400 DOI: 10.1016/j.freeradbiomed.2019.04.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 04/11/2019] [Accepted: 04/23/2019] [Indexed: 02/02/2023]
Abstract
Respiratory distress syndrome is the commonest respiratory disorder in preterm infants. Although it is well known that preterm birth has a key role, the mechanisms of lung injury have not been fully elucidated. The pathogenesis of this neonatal condition is based on the rapid formation of the oxygen reactive species, which surpasses the detoxification capacity of anti-oxidative defense system. The high reactivity of free radical leads to damage to a variety of molecules and may induce respiratory cell death. There is evidence that the oxidative stress involved in the physiopathology of this disease, is particularly related to oxygen supplementation, mechanical ventilation, inflammation/infection and diabetes. This narrative review summarizes what is known regarding the connection between oxidative stress and respiratory distress syndrome.
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Affiliation(s)
- Lucia Marseglia
- Neonatal Intensive Care Unit, Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", University of Messina, Italy
| | - Gabriella D'Angelo
- Neonatal Intensive Care Unit, Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", University of Messina, Italy.
| | - Roberta Granese
- Obstetrics and Gynecology Unit, Department of Human Pathology of Adult and Childhood "Gaetano Barresi", University of Messina, Italy
| | | | - Russel J Reiter
- Department of Cell Systems and Anatomy, The University of Texas Health Science Center, San Antonio, USA
| | - Giovanni Corsello
- Department of Sciences for Health Promotion and Mother and Child Care "G. D'Alessandro", University of Palermo, Italy
| | - Eloisa Gitto
- Neonatal Intensive Care Unit, Department of Human Pathology in Adult and Developmental Age "Gaetano Barresi", University of Messina, Italy
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Nagre N, Cong X, Terrazas C, Pepper I, Schreiber JM, Fu H, Sill JM, Christman JW, Satoskar AR, Zhao X. Inhibition of Macrophage Complement Receptor CRIg by TRIM72 Polarizes Innate Immunity of the Lung. Am J Respir Cell Mol Biol 2018; 58:756-766. [PMID: 29268030 PMCID: PMC6002657 DOI: 10.1165/rcmb.2017-0236oc] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 11/22/2017] [Indexed: 12/13/2022] Open
Abstract
The complement system plays a critical role in immune responses against pathogens. However, its identity and regulation in the lung are not fully understood. This study aimed to explore the role of tripartite motif protein (TRIM) 72 in regulating complement receptor (CR) of the Ig superfamily (CRIg) in alveolar macrophage (AM) and innate immunity of the lung. Imaging, absorbance quantification, and flow cytometry were used to evaluate in vitro and in vivo AM phagocytosis with normal, or altered, TRIM72 expression. Pulldown, coimmunoprecipitation, and gradient binding assays were applied to examine TRIM72 and CRIg interaction. A pneumonia model was established by intratracheal injection of Pseudomonas aeruginosa. Mortality, lung bacterial burden, and cytokine levels in BAL fluid and lung tissues were examined. Our data show that TRIM72 inhibited CR-mediated phagocytosis, and release of TRIM72 inhibition led to increased AM phagocytosis. Biochemical assays identified CRIg as a binding partner of TRIM72, and TRIM72 inhibited formation of the CRIg-phagosome. Genetic ablation of TRIM72 led to improved pathogen clearance, reduced cytokine storm, and improved survival in murine models of severe pneumonia, specificity of which was confirmed by adoptive transfer of wild-type or TRIM72KO AMs to AM-depleted TRIM72KO mice. TRIM72 overexpression promoted bacteria-induced NF-κB activation in murine alveolar macrophage cells. Our data revealed a quiescent, noninflammatory bacterial clearance mechanism in the lung via AM CRIg, which is suppressed by TRIM72. In vivo data suggest that targeted suppression of TRIM72 in AM may be an effective measure to treat fatal pulmonary bacterial infections.
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Affiliation(s)
- Nagaraja Nagre
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - Xiaofei Cong
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - César Terrazas
- Departments of Pathology and Microbiology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Ian Pepper
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - John M. Schreiber
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
| | - Hongyun Fu
- Division of Community Health and Research, Pediatrics Department, Eastern Virginia Medical School, Norfolk, Virginia
| | - Joshua M. Sill
- Division of Pulmonary and Critical Care, Department of Internal Medicine, Eastern Virginia Medical School, Norfolk, Virginia; and
| | - John W. Christman
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Abhay R. Satoskar
- Departments of Pathology and Microbiology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Xiaoli Zhao
- Department of Physiological Sciences, Eastern Virginia Medical School, Norfolk, Virginia
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Aversa S, Marseglia L, Manti S, D'Angelo G, Cuppari C, David A, Chirico G, Gitto E. Ventilation strategies for preventing oxidative stress-induced injury in preterm infants with respiratory disease: an update. Paediatr Respir Rev 2016; 17:71-9. [PMID: 26572937 DOI: 10.1016/j.prrv.2015.08.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 06/16/2015] [Accepted: 08/23/2015] [Indexed: 10/22/2022]
Abstract
Reactive oxygen and nitrogen species are produced by several inflammatory and structural cells of the airways. The lungs of preterm newborns are susceptible to oxidative injury induced by both reactive oxygen and nitrogen species. Increased oxidative stress and imbalance in antioxidant enzymes may play a role in the pathogenesis of inflammatory pulmonary diseases. Preterm infants are frequently exposed to high oxygen concentrations, infections or inflammation; they have reduced antioxidant defense and high free iron levels which enhance toxic radical generation. Multiple ventilation strategies have been studied to reduce injury and improve outcomes in preterm infants. Using lung protective strategies, there is the need to reach a compromise between satisfaction of gas exchange and potential toxicities related to over-distension, derecruitment of lung units and high oxygen concentrations. In this review, the authors summarize scientific evidence concerning oxidative stress as it relates to resuscitation in the delivery room and to the strategies of ventilation.
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Affiliation(s)
- Salvatore Aversa
- Neonatal Intensive Care Unit, Children Hospital, Spedali Civili of Brescia, Brescia, Italy, PhD course in Intensive Care, University of Messina, Messina, Italy
| | - Lucia Marseglia
- Department of Pediatrics, University of Messina, Messina, Italy.
| | - Sara Manti
- Department of Pediatrics, University of Messina, Messina, Italy
| | | | | | - Antonio David
- Department of Neurosciences, Psychiatric and Anesthesiological Sciences, University of Messina, Messina, Italy
| | - Gaetano Chirico
- Neonatal Intensive Care Unit, Children Hospital, Spedali Civili of Brescia, Brescia, Italy
| | - Eloisa Gitto
- Department of Pediatrics, University of Messina, Messina, Italy
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Dani C, Poggi C. The role of genetic polymorphisms in antioxidant enzymes and potential antioxidant therapies in neonatal lung disease. Antioxid Redox Signal 2014; 21:1863-80. [PMID: 24382101 PMCID: PMC4203110 DOI: 10.1089/ars.2013.5811] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
SIGNIFICANCE Oxidative stress is involved in the development of newborn lung diseases, such as bronchopulmonary dysplasia and persistent pulmonary hypertension of the newborn. The activity of antioxidant enzymes (AOEs), which is impaired as a result of prematurity and oxidative injury, may be further affected by specific genetic polymorphisms or an unfavorable combination of more of them. RECENT ADVANCES Genetic polymorphisms of superoxide dismutase and catalase were recently demonstrated to be protective or risk factors for the main complications of prematurity. A lot of research focused on the potential of different antioxidant strategies in the prevention and treatment of lung diseases of the newborn, providing promising results in experimental models. CRITICAL ISSUES The effect of different genetic polymorphisms on protein synthesis and activity has been poorly detailed in the newborn, hindering to derive conclusive results from the observed associations with adverse outcomes. Therapeutic strategies that aimed at enhancing the activity of AOEs were poorly studied in clinical settings and partially failed to produce clinical benefits. FUTURE DIRECTIONS The clarification of the effects of genetic polymorphisms on the proteomics of the newborn is mandatory, as well as the assessment of a larger number of polymorphisms with a possible correlation with adverse outcome. Moreover, antioxidant treatments should be carefully translated to clinical settings, after further details on optimal doses, administration techniques, and adverse effects are provided. Finally, the study of genetic polymorphisms could help select a specific high-risk population, who may particularly benefit from targeted antioxidant strategies.
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Affiliation(s)
- Carlo Dani
- Section of Neonatology, Department of Neurosciences, Psychology, Drug Research and Child Health, Careggi University Hospital , Florence, Italy
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Antioxidant strategies and respiratory disease of the preterm newborn: an update. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:721043. [PMID: 24803984 PMCID: PMC3996983 DOI: 10.1155/2014/721043] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 03/06/2014] [Indexed: 01/20/2023]
Abstract
Preterm newborns are challenged by an excessive oxidative burden, as a result of several perinatal stimuli, as intrauterine infections, resuscitation, mechanical ventilation, and postnatal complications, in the presence of immature antioxidant capacities. "Oxygen radical disease of neonatology" comprises a wide range of conditions sharing a common pathway of pathogenesis and includes bronchopulmonary dysplasia (BPD) and other main complications of prematurity. Antioxidant strategies may be beneficial in the prevention and treatment of oxidative stress- (OS-) related lung disease of the preterm newborn. Endotracheal supplementation or lung-targeted overexpression of superoxide dismutase was proved to reduce lung damage in several models; however, the supplementation in preterm newborn failed to reduce the risk of BPD, although long-term respiratory outcomes were improved. Also melatonin administration to small cohorts of preterm newborns suggested beneficial effects on lung OS. The possibility to identify single nucleotide polymorphism affecting the risk of BPD may help to identify specific populations with particularly high risk of OS-related diseases and may pose the basis for individually targeted treatments. Finally, surfactant replacement may lead to local anti-inflammatory and antioxidant effects, thanks to specific enzymatic and nonenzymatic antioxidants naturally present in animal surfactants.
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Yan Z, Sun X, Evans IA, Tyler SR, Song Y, Liu X, Sui H, Engelhardt JF. Postentry processing of recombinant adeno-associated virus type 1 and transduction of the ferret lung are altered by a factor in airway secretions. Hum Gene Ther 2014; 24:786-96. [PMID: 23948055 DOI: 10.1089/hum.2013.137] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
We recently created a cystic fibrosis ferret model that acquires neonatal lung infection. To develop lung gene therapies for this model, we evaluated recombinant adeno-associated virus (rAAV)-mediated gene transfer to the neonatal ferret lung. Unlike in vitro ferret airway epithelial (FAE) cells, in vivo infection of the ferret lung with rAAV1 required proteasome inhibitors to achieve efficient airway transduction. We hypothesized that differences in transduction between these two systems were because of an in vivo secreted factor that alter the transduction biology of rAAV1. Indeed, treatment of rAAV1 with ferret airway secretory fluid (ASF) strongly inhibited rAAV1, but not rAAV2, transduction of primary FAE and HeLa cells. Properties of the ASF inhibitory factor included a strong affinity for the AAV1 capsid, heat-stability, negative charge, and sensitivity to endoproteinase Glu-C. ASF-treated rAAV1 dramatically inhibited apical transduction of FAE ALI cultures (512-fold), while only reducing viral entry by 55-fold, suggesting that postentry processing of virus was influenced by the inhibitor factor. Proteasome inhibitors rescued transduction in the presence of ASF (~1600-fold) without effecting virus internalization, while proteasome inhibitors only enhanced transduction 45-fold in the absence of ASF. These findings demonstrate that a factor in lung secretions can influence intracellular processing of rAAV1 in a proteasome-dependent fashion.
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Affiliation(s)
- Ziying Yan
- Department of Anatomy and Cell Biology, University of Iowa School of Medicine, Iowa City, IA 52242-1009, USA
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Dani C, Poggi C. Antioxidant Properties of Surfactant. OXIDATIVE STRESS IN APPLIED BASIC RESEARCH AND CLINICAL PRACTICE 2014. [PMCID: PMC7121990 DOI: 10.1007/978-1-4939-1405-0_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Surfactant treatment is one of the milestones of respiratory distress syndrome (RDS) treatment in preterm infants, but it has been also demonstrated to exert consistent antioxidant and anti-inflammatory activities. Exogenous natural surfactant contains antioxidant enzymes, such as catalase (CAT) and superoxide dismutase (SOD), and nonenzymatic antioxidant molecules, such as plasmalogens and polyunsaturated phospholipids (PUPLs). Moreover, surfactant can contribute to the modulation of intra-alveolar inflammatory processes through the regulation effect of the surfactant A (SP-A) and B (SP-B) proteins. Although less extensively investigated, these functions may contribute to the efficacy of exogenous surfactant administration in preterm neonates with RDS.
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Molecular and Physiological Determinants of Pulmonary Developmental Biology: a Review. ACTA ACUST UNITED AC 2013. [DOI: 10.12691/ajbr-1-1-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Christmann U, Buechner-Maxwell VA, Witonsky SG, Hite RD. Role of lung surfactant in respiratory disease: current knowledge in large animal medicine. J Vet Intern Med 2009; 23:227-42. [PMID: 19192153 DOI: 10.1111/j.1939-1676.2008.0269.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Lung surfactant is produced by type II alveolar cells as a mixture of phospholipids, surfactant proteins, and neutral lipids. Surfactant lowers alveolar surface tension and is crucial for the prevention of alveolar collapse. In addition, surfactant contributes to smaller airway patency and improves mucociliary clearance. Surfactant-specific proteins are part of the innate immune defense mechanisms of the lung. Lung surfactant alterations have been described in a number of respiratory diseases. Surfactant deficiency (quantitative deficit of surfactant) in premature animals causes neonatal respiratory distress syndrome. Surfactant dysfunction (qualitative changes in surfactant) has been implicated in the pathophysiology of acute respiratory distress syndrome and asthma. Analysis of surfactant from amniotic fluid allows assessment of fetal lung maturity (FLM) in the human fetus and exogenous surfactant replacement therapy is part of the standard care in premature human infants. In contrast to human medicine, use and success of FLM testing or surfactant replacement therapy remain limited in veterinary medicine. Lung surfactant has been studied in large animal models of human disease. However, only a few reports exist on lung surfactant alterations in naturally occurring respiratory disease in large animals. This article gives a general review on the role of lung surfactant in respiratory disease followed by an overview of our current knowledge on surfactant in large animal veterinary medicine.
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Affiliation(s)
- U Christmann
- Department of Large Animal Clinical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Duck Pond Drive, Phase II, Blacksburg, VA 24061, USA.
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