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Yang X, Wang X, Dong W. Aryl hydrocarbon receptor (AhR) is regulated by hyperoxia in premature infants. J Matern Fetal Neonatal Med 2024; 37:2349179. [PMID: 38816997 DOI: 10.1080/14767058.2024.2349179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 04/24/2024] [Indexed: 06/01/2024]
Abstract
OBJECTIVE To investigate whether aryl hydrocarbon receptor (AhR) is involved in hyperoxia-mediated oxidative stress by observing the relationship between AhR and reactive oxygen species (ROS) in peripheral blood mononuclear cells (PBMCs) after oxygen exposure in premature infants. METHODS After 48 h of oxygen inhalation at different concentrations, discarded peripheral blood was collected to separate PBMCs and plasma. ROS were labeled with MitoSOXTM Red and detected by fluorescence microscopy in PBMCs. The level of MDA in plasma was detected by thiobarbituric acid colorimetry, the level of MCP-1 in plasma was detected by enzyme-linked immunosorbent assay (ELISA), the localization of AhR was detected by immunofluorescence, and the level of AhR expression in PBMCs was detected by Western blotting. RESULTS As the volume fraction of inspired oxygen increased, compared with those in the air control group, the levels of ROS, MDA in plasma, and MCP-1 in plasma increased gradually in the low concentration oxygen group, medium concentration oxygen group and high concentration oxygen group. The cytoplasm-nuclear translocation rate of AhR gradually increased, and the expression level of AhR gradually decreased. The levels of ROS in PBMCs, MDA in the plasma and MCP-1 in the plasma of premature infants were positively correlated with the cytoplasm-nuclear translocation rate of AhR but negatively correlated with the level of AhR expression. CONCLUSION Aryl hydrocarbon receptor (AhR) is regulated by hyperoxia in premature infants.
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Affiliation(s)
- Xi Yang
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Birth Defects, Luzhou, China
| | - Xia Wang
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Birth Defects, Luzhou, China
| | - Wenbin Dong
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Birth Defects, Luzhou, China
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Neuen SM, Ophelders DR, Widowski H, Hütten MC, Brokken T, van Gorp C, Nikkels PG, Severens-Rijvers CA, Sthijns MM, van Blitterswijk CA, Troost FJ, LaPointe VL, Jolani S, Seiler C, Pillow JJ, Delhaas T, Reynaert NL, Wolfs TG. Multipotent adult progenitor cells prevent functional impairment and improve development in inflammation driven detriment of preterm ovine lungs. Regen Ther 2024; 27:207-217. [PMID: 38576851 PMCID: PMC10990734 DOI: 10.1016/j.reth.2024.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/01/2024] [Accepted: 03/15/2024] [Indexed: 04/06/2024] Open
Abstract
Background Perinatal inflammation increases the risk for bronchopulmonary dysplasia in preterm neonates, but the underlying pathophysiological mechanisms remain largely unknown. Given their anti-inflammatory and regenerative capacity, multipotent adult progenitor cells (MAPC) are a promising cell-based therapy to prevent and/or treat the negative pulmonary consequences of perinatal inflammation in the preterm neonate. Therefore, the pathophysiology underlying adverse preterm lung outcomes following perinatal inflammation and pulmonary benefits of MAPC treatment at the interface of prenatal inflammatory and postnatal ventilation exposures were elucidated. Methods Instrumented ovine fetuses were exposed to intra-amniotic lipopolysaccharide (LPS 5 mg) at 125 days gestation to induce adverse systemic and peripheral organ outcomes. MAPC (10 × 106 cells) or saline were administered intravenously two days post LPS exposure. Fetuses were delivered preterm five days post MAPC treatment and either killed humanely immediately or mechanically ventilated for 72 h. Results Antenatal LPS exposure resulted in inflammation and decreased alveolar maturation in the preterm lung. Additionally, LPS-exposed ventilated lambs showed continued pulmonary inflammation and cell junction loss accompanied by pulmonary edema, ultimately resulting in higher oxygen demand. MAPC therapy modulated lung inflammation, prevented loss of epithelial and endothelial barriers and improved lung maturation in utero. These MAPC-driven improvements remained evident postnatally, and prevented concomitant pulmonary edema and functional loss. Conclusion In conclusion, prenatal inflammation sensitizes the underdeveloped preterm lung to subsequent postnatal inflammation, resulting in injury, disturbed development and functional impairment. MAPC therapy partially prevents these changes and is therefore a promising approach for preterm infants to prevent adverse pulmonary outcomes.
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Affiliation(s)
- Sophie M.L. Neuen
- Department of Pediatrics, Maastricht University Medical Center, MosaKids Children's Hospital, Maastricht, the Netherlands
- GROW Research Institute for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | - Daan R.M.G. Ophelders
- Department of Pediatrics, Maastricht University Medical Center, MosaKids Children's Hospital, Maastricht, the Netherlands
- GROW Research Institute for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | - Helene Widowski
- Department of Pediatrics, Maastricht University Medical Center, MosaKids Children's Hospital, Maastricht, the Netherlands
- GROW Research Institute for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
- Department of BioMedical Engineering, Maastricht University, Maastricht, the Netherlands
| | - Matthias C. Hütten
- Department of Pediatrics, Maastricht University Medical Center, MosaKids Children's Hospital, Maastricht, the Netherlands
- GROW Research Institute for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | - Tim Brokken
- Department of Pediatrics, Maastricht University Medical Center, MosaKids Children's Hospital, Maastricht, the Netherlands
- GROW Research Institute for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | - Charlotte van Gorp
- Department of Pediatrics, Maastricht University Medical Center, MosaKids Children's Hospital, Maastricht, the Netherlands
- GROW Research Institute for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | - Peter G.J. Nikkels
- Department of Pathology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Carmen A.H. Severens-Rijvers
- GROW Research Institute for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
- Department of Pathology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Mireille M.J.P.E. Sthijns
- Food Innovation and Health, Department of Human Biology, Maastricht University, Venlo, the Netherlands
- NUTRIM Institute of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, the Netherlands
| | | | - Freddy J. Troost
- Food Innovation and Health, Department of Human Biology, Maastricht University, Venlo, the Netherlands
| | - Vanessa L.S. LaPointe
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, the Netherlands
| | - Shahab Jolani
- Department of Methodology and Statistics, School CAPHRI, Care and Public Health Research Institute, Maastricht University, Maastricht, the Netherlands
| | - Christof Seiler
- Department of Advanced Computing Sciences, Maastricht University, Maastricht, the Netherlands
- Mathematics Centre Maastricht, Maastricht University, the Netherlands
| | - J. Jane Pillow
- School of Human Sciences, University of Western Australia, Perth, WA, Australia
| | - Tammo Delhaas
- Department of BioMedical Engineering, Maastricht University, Maastricht, the Netherlands
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, the Netherlands
| | - Niki L. Reynaert
- NUTRIM Institute of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
- Department of Respiratory Medicine, Maastricht University, Maastricht, the Netherlands
| | - Tim G.A.M. Wolfs
- Department of Pediatrics, Maastricht University Medical Center, MosaKids Children's Hospital, Maastricht, the Netherlands
- GROW Research Institute for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
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Li M, Sun W, Fu C, Xu S, Wang C, Chen H, Zhu X. Predictive value of serum MED1 and PGC-1α for bronchopulmonary dysplasia in preterm infants. BMC Pulm Med 2024; 24:363. [PMID: 39069619 DOI: 10.1186/s12890-024-03145-z] [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: 10/12/2023] [Accepted: 07/02/2024] [Indexed: 07/30/2024] Open
Abstract
OBJECTIVE This study aimed to predict the bronchopulmonary dysplasia (BPD) in preterm infants with a gestational age(GA) < 32 weeks utilizing clinical data, serum mediator complex subunit 1 (MED1), and serum peroxisome proliferator-activated receptor gamma coactivator-1alpha (PGC-1α). METHODS This prospective observational study enrolled 70 preterm infants with GA < 32 weeks. The infants were categorized into two groups: non-BPD group(N = 35) and BPD group(N = 35), including 25 cases with mild BPD and 10 patients with moderate/severe subgroups. We performed multifactorial regression analysis to investigate the postnatal risk factors for BPD. Furthermore, we compared serum levels of biomarkers, including MED1 and PGC-1α, among infants with and without BPD at postnatal days 1, 7, 14, 28, and PMA 36 weeks. A logistic regression model was constructed to predict BPD's likelihood using clinical risk factors and serum biomarkers. RESULTS Serum levels of MED1 on the first postnatal day, PGC-1α on the 1st, 7th, and 28th days, and PMA at 36 weeks were significantly lower in the BPD group than in the non-BPD group (P < 0.05). Furthermore, the predictive model for BPD was created by combing serum levels of MED1 and PGC-1α on postnatal day 1 along with clinical risk factors such as frequent apnea, mechanical ventilation time > 7 d, and time to reach total enteral nutrition. Our predictive model had a high predictive accuracy(C statistics of 0.989) . CONCLUSION MED1and PGC-1α could potentially serve as valuable biomarkers, combined with clinical factors, to aid clinicians in the early diagnosis of BPD.
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Affiliation(s)
- Mengzhao Li
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
- Department of Child and Adolescent Healthcare, Children's Hospital of Soochow University, Suzhou, China
| | - Wenqiang Sun
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
| | - Changchang Fu
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
| | - Shuyang Xu
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
| | - Chengzhu Wang
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
| | - Huijuan Chen
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
| | - Xueping Zhu
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China.
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Zeng LC, Zhang SH, Fu N, Gao FJ, Ren NF, Zheng W, Lin BX, Chen H. miR-3202 inhibits bronchopulmonary dysplasia-mediated apoptosis and oxidative stress in bronchial epithelial cells via targeting RAG1. Pathol Res Pract 2024; 261:155482. [PMID: 39067173 DOI: 10.1016/j.prp.2024.155482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 07/04/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
BACKGROUND BPD is a refractory disease affecting preterm infants with alveolar dysplasia and declined pulmonary function. However, the molecular mechanism underlying BPD is largely unknown. To explore the pathogenic mechanism of BPD and to facilitate better diagnosis and treatment of this disease. METHOD The DEMs and DEGs in BPD vs. Control samples from the miRNA expression data in GSE108754 and mRNA expression data in the GSE108755 were screened, followed by the construction of the miRNA-mRNA regulatory network. DEGs PPI network and hub DEGs analysis were constructed by using the STRING database and Cytoscape software. Functional and pathway enrichment analyses were then performed for these DEGs and DEMs based on the ClusterProfiler package in the R and the miRWalk database. The k-mean algorithm is used to perform clustering analysis of DEGs. Cellular experiments (flow cytometry, western blot, RT-PCR, dual-luciferase reporter assay) were used to validate the results of bioinformatics. RESULTS We obtained 20 DEMs and 262 DEGs. A 15 DEMs-11 DEGs regulatory network was constructed. miR-3202-RAG1 is a core sub-network. Hyperoxia induced a cell model of BPD. The upregulation of RAG1 and downregulation of miR-3202 were observed in BPD cells. Furthermore, siRNA targeting RAG1 was transfected into BEAS-2B cells to inhibit its expression and miR-3202 mimics was transfected into the cells to increase its expression. Inhibition of RAG1 and elevation of miR-3202 inhibit cell apoptosis and reduce ROS level caused by hyperoxia. A double-luciferase reporter assay revealed that miR-3202 directly targets RAG1. CONCLUSION The miRNA-3202/RAG1 axis contributes into BPD-induced cell apoptosis and ROS production. The present study provides a probable target for the treatment of BPD.
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Affiliation(s)
- Li-Chun Zeng
- Neonatology Department, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518133, China
| | - Shu-Hui Zhang
- Neonatology Department, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518133, China
| | - Na Fu
- Neonatology Department, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518133, China
| | - Feng-Jiao Gao
- Neonatology Department, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518133, China
| | - Na-Fang Ren
- Neonatology Department, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518133, China
| | - Wei Zheng
- Neonatology Department, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518133, China
| | - Bai-Xing Lin
- Neonatology Department, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518133, China
| | - Hui Chen
- Neonatology Department, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong 518133, China.
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Liu J, Bao T, Zhou Y, Ma M, Tian Z. Deficiency of Secreted Phosphoprotein 1 Alleviates Hyperoxia-induced Bronchopulmonary Dysplasia in Neonatal Mice. Inflammation 2024:10.1007/s10753-024-02088-1. [PMID: 38951356 DOI: 10.1007/s10753-024-02088-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/24/2024] [Accepted: 06/20/2024] [Indexed: 07/03/2024]
Abstract
Bronchopulmonary dysplasia (BPD) is a common chronic lung disorder characterized by impaired proximal airway and bronchoalveolar development in premature births. Secreted phosphoprotein 1 (SPP1) is involved in lung development and lung injury events, while its role was not explored in BPD. For establishing the in vivo models of BPD, a mouse model of hyperoxia-induced lung injury was generated by exposing neonatal mice to hyperoxia for 7 days after birth. Alveolar myofibroblasts (AMYFs) were treated with hyperoxia to establish the in vitro models of BPD. Based on the scRNA-seq analysis of lungs of mice housed under normoxia or hyperoxia conditions, mouse macrophages and fibroblasts were main different cell clusters between the two groups, and differentially expressed genes in fibroblasts were screened. Further GO and KEGG enrichment analysis revealed that these differentially expressed genes were mainly enriched in the pathways related to cell proliferation, apoptosis as well as the PI3K-AKT and ERK/MAPK pathways. SPP1 was found up-regulated in the lung tissues of hyperoxia mice. We also demonstrated the up-regulation of SPP1 in the BPD patients, the mouse model of hyperoxia-induced lung injury, and hyperoxia-induced cells. SPP1 deficiency was revealed to reduce the hyperoxia-induced apoptosis, oxidative stress and inflammation and increase the viability of AMYFs. In the mouse model of hyperoxia induced lung injury, SPP1 deficiency was demonstrated to reverse the hyperoxia-induced alveolar growth disruption, oxidative stress and inflammation. Overall, SPP1 exacerbates BPD progression in vitro and in vivo by regulating oxidative stress and inflammatory response via the PI3K-AKT and ERK/MAPK pathways, which might provide novel therapeutic target for BPD therapy.
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Affiliation(s)
- Juan Liu
- Department of Neonatology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, No.1 Huanghe West Road, Huaiyin District Huaian, Jiangsu, 223300, China
| | - Tianping Bao
- Department of Neonatology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, No.1 Huanghe West Road, Huaiyin District Huaian, Jiangsu, 223300, China
| | - Yajuan Zhou
- Department of Neonatology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, No.1 Huanghe West Road, Huaiyin District Huaian, Jiangsu, 223300, China
| | - Mengmeng Ma
- Department of Neonatology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, No.1 Huanghe West Road, Huaiyin District Huaian, Jiangsu, 223300, China
| | - Zhaofang Tian
- Department of Neonatology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, No.1 Huanghe West Road, Huaiyin District Huaian, Jiangsu, 223300, China.
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Luo Y, Zhang Z, Xi S, Li T. Bioinformatics analyses and experimental validation of ferroptosis-related genes in bronchopulmonary dysplasia pathogenesis. PLoS One 2024; 19:e0291583. [PMID: 38875180 PMCID: PMC11178182 DOI: 10.1371/journal.pone.0291583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 05/18/2024] [Indexed: 06/16/2024] Open
Abstract
OBJECTIVE We aimed to study the involvement of ferroptosis in the pathogenesis of bronchopulmonary dysplasia (BPD) by conducting bioinformatics analyses and identifying and validating the associated ferroptosis-related genes to explore new directions for treating BPD. METHODS The dataset GSE32472 on BPD was downloaded from the public genome database. Using R language, differentially expressed genes (DEGs) between the BPD and normal group were screened. In the present study, we adopted weighted gene correlation network analysis (WGCNA) for identifying BPD-related gene modules and ferroptosis-related genes were extracted from FerrDb. Their results were intersected to obtain the hub genes. After that, to explore the hub gene-related signaling pathways, the hub genes were exposed to gene ontology enrichment analysis. With the purpose of verifying the mRNA expression of the hub genes, a single-gene gene set enrichment analysis and quantitative reverse transcription polymerase chain reaction were conducted. Immune cell infiltration in BPD was analyzed using the CIBERSORT inverse fold product algorithm. RESULTS A total of 606 DEGs were screened. WGCNA provided the BPD-related gene module darkgreen4. The intersection of DEGs, intramodular genes, and ferroptosis-related genes revealed six ferroptosis-associated hub genes (ACSL1, GALNT14, WIPI1, MAPK14, PROK2, and CREB5). Receiver operating characteristic curve analysis demonstrated that the hub genes screened for BPD were of good diagnostic significance. According to the results of immune infiltration analysis, the proportions of CD8, CD4 naive, and memory resting T cells and M2 macrophage were elevated in the normal group, and the proportions of M0 macrophage, resting mast cell, and neutrophils were increased in the BPD group. CONCLUSIONS A total of six ferroptosis-associated hub genes in BPD were identified in this study, and they may be potential new therapeutic targets for BPD.
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Affiliation(s)
- Yifan Luo
- Department of Pediatrics, Affiliated Taihe Hospital of Hubei University of Medicine, Shiyan, Hubei, China
| | - Zongli Zhang
- Institute of Pediatric Diseases, Affiliated Taihe Hospital of Hubei University of Medicine, Shiyan, Hubei, China
| | - Shibing Xi
- Department of Pediatrics, Affiliated Taihe Hospital of Hubei University of Medicine, Shiyan, Hubei, China
| | - Tao Li
- Department of Pediatrics, Affiliated Taihe Hospital of Hubei University of Medicine, Shiyan, Hubei, China
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Yang K, Yang M, Shen Y, Kang L, Zhu X, Dong W, Lei X. Resveratrol Attenuates Hyperoxia Lung Injury in Neonatal Rats by Activating SIRT1/PGC-1α Signaling Pathway. Am J Perinatol 2024; 41:1039-1049. [PMID: 35240708 DOI: 10.1055/a-1787-3396] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVES Our previous study showed that resveratrol (Res) attenuates apoptosis and mitochondrial dysfunction in alveolar epithelial cell injury induced by hyperoxia by activating the SIRT1/PGC-1α signaling pathway. In the present study, we investigated whether Res protects against hyperoxia-induced lung injury in neonatal rats by activating SIRT1/PGC-1α signaling pathway. METHODS Naturally delivered neonatal rats were randomly divided into six groups: normoxia + normal saline, normoxia + dimethyl sulfoxide (DMSO), normoxia + Res, hyperoxia + normal saline, hyperoxia + DMSO, and hyperoxia + Res. Lung tissue samples were collected on postnatal days 1, 7, and 14. Hematoxylin and eosin staining was used to evaluate lung development. Dual-immunofluorescence staining, real-time polymerase chain reaction, and western blotting were used to evaluate the levels of silencing information regulator 2-related enzyme 1 (SIRT1), peroxisome proliferator-activated receptor γ co-activator 1α (PGC-1α), nuclear respiratory factor 1 (Nrf1), Nrf2, transcription factor A (TFAM) and citrate synthase, the number of mitochondrial DNA (mtDNA) and mitochondria, the integrity of mtDNA, and the expression of TFAM in mitochondria. RESULTS We found that hyperoxia insulted lung development, whereas Res attenuated the hyperoxia lung injury. Res significantly upregulated the levels of SIRT1, PGC-1α, Nrf1, Nrf2, TFAM, and citrate synthase; promoted TFAM expression in the mitochondria; and increased the copy number of ND1 and the ratio of ND4/ND1. CONCLUSION Our data suggest that Res attenuates hyperoxia-induced lung injury in neonatal rats, and this was achieved, in part, by activating the SIRT1/PGC-1α signaling pathway to promote mitochondrial biogenesis. KEY POINTS · Hyperoxia insulted lung development in neonatal rats.. · Resveratrol promoted mitochondrial biogenesis to attenuate hyperoxia lung injury in neonatal rats.. · Resveratrol, at least in part, promoted mitochondrial biogenesis by activating the SIRT1/PGC-1α signaling pathway..
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Affiliation(s)
- Kun Yang
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Birth Defects, Luzhou, China
| | - Menghan Yang
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Birth Defects, Luzhou, China
| | - Yunchuan Shen
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Birth Defects, Luzhou, China
| | - Lan Kang
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Birth Defects, Luzhou, China
| | - Xiaodan Zhu
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Birth Defects, Luzhou, China
| | - Wenbin Dong
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Birth Defects, Luzhou, China
| | - Xiaoping Lei
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Birth Defects, Luzhou, China
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8
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Philpot P, Graumuller F, Melchiorre N, Prahaladan V, Takada X, Chandran S, Guillermo M, Dickler D, Aghai ZH, Das P, Bhandari V. Hyperoxia-Induced miR-195 Causes Bronchopulmonary Dysplasia in Neonatal Mice. Biomedicines 2024; 12:1208. [PMID: 38927415 PMCID: PMC11201213 DOI: 10.3390/biomedicines12061208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
Background: Exposure to hyperoxia is an important factor in the development of bronchopulmonary dysplasia (BPD) in preterm newborns. MicroRNAs (miRs) have been implicated in the pathogenesis of BPD and provide a potential therapeutic target. Methods: This study was conducted utilizing a postnatal animal model of experimental hyperoxia-induced murine BPD to investigate the expression and function of miR-195 as well as its molecular signaling targets within developing mouse lung tissue. Results: miR-195 expression levels increased in response to hyperoxia in male and female lungs, with the most significant elevation occurring in 40% O2 (mild) and 60% O2 (moderate) BPD. The inhibition of miR-195 improved pulmonary morphology in the hyperoxia-induced BPD model in male and female mice with females showing more resistance to injury and better recovery of alveolar chord length, septal thickness, and radial alveolar count. Additionally, we reveal miR-195-dependent signaling pathways involved in BPD and identify PH domain leucine-rich repeat protein phosphatase 2 (PHLPP2) as a novel specific target protein of miR-195. Conclusions: Our data demonstrate that high levels of miR-195 in neonatal lungs cause the exacerbation of hyperoxia-induced experimental BPD while its inhibition results in amelioration. This finding suggests a therapeutic potential of miR-195 inhibition in preventing BPD.
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Affiliation(s)
- Patrick Philpot
- Division of Neonatology, Department of Pediatrics, Thomas Jefferson University, Nemours, Philadelphia, PA 19107, USA; (P.P.); (Z.H.A.)
- Division of Neonatology, Department of Pediatrics, Drexel University College of Medicine, Philadelphia, PA 19102, USA; (V.P.); (P.D.)
| | - Fred Graumuller
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Nicole Melchiorre
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Varsha Prahaladan
- Division of Neonatology, Department of Pediatrics, Drexel University College of Medicine, Philadelphia, PA 19102, USA; (V.P.); (P.D.)
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Xander Takada
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Srinarmadha Chandran
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Melissa Guillermo
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - David Dickler
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Zubair H. Aghai
- Division of Neonatology, Department of Pediatrics, Thomas Jefferson University, Nemours, Philadelphia, PA 19107, USA; (P.P.); (Z.H.A.)
| | - Pragnya Das
- Division of Neonatology, Department of Pediatrics, Drexel University College of Medicine, Philadelphia, PA 19102, USA; (V.P.); (P.D.)
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
| | - Vineet Bhandari
- Division of Neonatology, Department of Pediatrics, Drexel University College of Medicine, Philadelphia, PA 19102, USA; (V.P.); (P.D.)
- Division of Neonatology, The Children’s Regional Hospital at Cooper, Cooper Medical School of Rowan University, Camden, NJ 08103, USA; (F.G.); (N.M.); (X.T.); (S.C.); (M.G.); (D.D.)
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9
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Ishida S, Nakanishi H, Sekiya R, Kawada K, Kosaka Y, Yamaguchi A, Ooka M. Evaluation of Postnatal Complications in Clinical and Histological Chorioamnionitis in Extremely Preterm Infants: A Japanese Cohort Study. Am J Perinatol 2024; 41:e2383-e2389. [PMID: 37339674 DOI: 10.1055/a-2113-4332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
OBJECTIVE Terminating pregnancy appropriately before the intrauterine infection has progressed may have an improved prognosis for preterm infants. We evaluate how the combination of histological chorioamnionitis (hCAM) and clinical chorioamnionitis (cCAM) affects the short-term prognosis of infants. STUDY DESIGN This retrospective multicenter cohort study based on the Neonatal Research Network of Japan included extremely preterm infants born weighing <1,500 g between 2008 and 2018. Demographic characteristics, morbidity, and mortality were compared between the cCAM(-)hCAM(+) and cCAM(+)hCAM(+) groups. RESULTS We included 16,304 infants. The progression to cCAM in infants with hCAM was correlated with the increase in home oxygen therapy (HOT) (adjusted odds ratio [aOR], 1.27; 95% confidence interval [CI], 1.11-1.44) and persistent pulmonary hypertension of the newborn (PPHN) (1.20, 1.04-1.38). Furthermore, increased progression of the hCAM stage in infants with cCAM correlated with an increase in bronchopulmonary dysplasia (BPD; 1.05, 1.01-1.11), HOT (1.10, 1.02-1.18), and PPHN (1.09, 1.01-1.18). However, it had a negative impact on hemodynamically significant patent ductus arteriosus (hsPDA; 0.87, 0.83-0.92) and death before discharge from the neonatal intensive care unit (NICU; 0.88, 0.81-0.96). CONCLUSION Progression to cCAM in infants with hCAM positively correlated with HOT and PPHN. Progression of hCAM staging in infants with cCAM further increases the prevalence of BPD and the need for HOT and PPHN while reducing the prevalence of hsPDA and death before discharge from the NICU. The effects of the progressive hCAM stage in infants with cCAM vary from positive to negative by disease. KEY POINTS · Retrospective multicenter cohort study based on the Neonatal Research Network of Japan.. · Clinical and histological chorioamnionitis increases the prevalence of BPD, HOT, and PPHN.. · Progression of histological chorioamnionitis in infants reduces the prevalence of hsPDA and death..
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Affiliation(s)
- Shuji Ishida
- Department of Pediatrics, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Hidehiko Nakanishi
- Department of Pediatrics, Kitasato University, Sagamihara, Kanagawa, Japan
- Division of Neonatal Intensive Care Medicine, Research and Development Center for New Medical Frontiers, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Rika Sekiya
- Department of Pediatrics, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Kohei Kawada
- Department of Pediatrics, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Yukako Kosaka
- Department of Pediatrics, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Ayano Yamaguchi
- Department of Pediatrics, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Mari Ooka
- Department of Pediatrics, Kitasato University, Sagamihara, Kanagawa, Japan
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10
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Lin ET, Bae Y, Birkett R, Sharma AM, Zhang R, Fisch KM, Funk W, Mestan KK. Cord Blood Adductomics Reveals Oxidative Stress Exposure Pathways of Bronchopulmonary Dysplasia. Antioxidants (Basel) 2024; 13:494. [PMID: 38671941 PMCID: PMC11047351 DOI: 10.3390/antiox13040494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/13/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Fetal and neonatal exposures to perinatal oxidative stress (OS) are key mediators of bronchopulmonary dysplasia (BPD). To characterize these exposures, adductomics is an exposure science approach that captures electrophilic addition products (adducts) in blood protein. Adducts are bound to the nucleophilic cysteine loci of human serum albumin (HSA), which has a prolonged half-life. We conducted targeted and untargeted adductomics to test the hypothesis that adducts of OS vary with BPD. We studied 205 preterm infants (≤28 weeks) and 51 full-term infants from an ongoing birth cohort. Infant plasma was collected at birth (cord blood), 1-week, 1-month, and 36-weeks postmenstrual age. HSA was isolated from plasma, trypsin digested, and analyzed using high-performance liquid chromatography-mass spectrometry to quantify previously annotated (known) and unknown adducts. We identified 105 adducts in cord and postnatal blood. A total of 51 known adducts (small thiols, direct oxidation products, and reactive aldehydes) were increased with BPD. Postnatally, serial concentrations of several known OS adducts correlated directly with supplemental oxygen exposure. The application of large-scale adductomics elucidated OS-mediated pathways of BPD. This is the first study to investigate the "neonatal-perinatal exposome" and to identify oxidative stress-related exposure biomarkers that may inform antioxidant strategies to protect the health of future generations of infants.
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Affiliation(s)
- Erika T. Lin
- Department of Pediatrics, Division of Neonatology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Yeunook Bae
- Department of Preventive Medicine, Northwestern University, 680 North Lake Shore Drive, Suite 1400, Chicago, IL 60611, USA; (Y.B.)
| | - Robert Birkett
- Department of Pediatrics, Division of Neonatology, Northwestern University, Chicago, IL 60611, USA
| | - Abhineet M. Sharma
- Department of Pediatrics, Division of Neonatology, Northwestern University, Chicago, IL 60611, USA
| | - Runze Zhang
- Department of Preventive Medicine, Northwestern University, 680 North Lake Shore Drive, Suite 1400, Chicago, IL 60611, USA; (Y.B.)
| | - Kathleen M. Fisch
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Diego, La Jolla, CA 92093, USA;
| | - William Funk
- Department of Preventive Medicine, Northwestern University, 680 North Lake Shore Drive, Suite 1400, Chicago, IL 60611, USA; (Y.B.)
| | - Karen K. Mestan
- Department of Pediatrics, Division of Neonatology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
- Department of Pediatrics, Division of Neonatology, Northwestern University, Chicago, IL 60611, USA
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11
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Zhang L, Zhuo Z, Chen L, Liu J, Huang J, Deng J, Lu W, Jiang X. Nesfatin-1 alleviates hyperoxia-induced bronchopulmonary dysplasia (BPD) via the nuclear factor-κB (NF-κB) p65 signaling pathway. J Biochem Mol Toxicol 2024; 38:e23680. [PMID: 38511245 DOI: 10.1002/jbt.23680] [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: 07/24/2023] [Revised: 01/16/2024] [Accepted: 02/23/2024] [Indexed: 03/22/2024]
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic respiratory disease in newborns, which severely influences the health of infants and lacks effective clinical treatment strategies. The pathogenesis of BPD is correlated to enhanced inflammation and activated oxidative stress (OS). The application of antioxidants and anti-inflammatory treatment could be hot spots for BPD treatment. Nesfatin-1, a peptide with a suppressive property against inflammation, was tested herein for its potential therapeutic value in BPD. Neonatal SD rats were stimulated with hyperoxia, followed by being intraperitoneally administered with 20 μg/kg/day Nesfatin-1 for 2 weeks. Decreased RAC value in lung tissues, increased wet weight/dry weight (W/D) pulmonary ratio and bronchoalveolar lavage fluid (BALF) proteins, elevated cytokine release in BALF, increased malondialdehyde (MDA) content, and declined superoxide dismutase (SOD) activity were observed in BPD rats, all of which were sharply mitigated by Nesfatin-1. Rat epithelial type II cells (AECIIs) were handled with hyperoxia, and then cultured with 1 and 10 nM Nesfatin-1. Reduced cell viability, elevated lactate dehydrogenase production, elevated cytokine secretion, elevated MDA content, and decreased SOD activity were observed in hyperoxia-handled AECIIs, all of which were markedly alleviated by Nesfatin-1. Furthermore, activated nuclear factor-κB (NF-κB) signaling observed in both BPD rats and hyperoxia-handled AECIIs were notably repressed by Nesfatin-1. Collectively, Nesfatin-1 alleviated hyperoxia-triggered BPD by repressing inflammation and OS via the NF-κB signaling pathway.
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Affiliation(s)
- Li Zhang
- Department of Anesthesiology, Luzhou People's Hospital, Luzhou, China
| | - Zhang Zhuo
- School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Lijuan Chen
- Department of Pharmacy, Stomatology Hospital Affiliated to Southwest Medical University, Luzhou, China
| | - Jiao Liu
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jiang Huang
- Department of Pharmacy, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Jian Deng
- Department of Pharmacy, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Wei Lu
- Department of Emergency, Luzhou People's Hospital, Luzhou, China
| | - Xian Jiang
- Department of Anesthesiology, Luzhou People's Hospital, Luzhou, China
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12
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Yumani DFJ, Walschot FH, Lafeber HN, van Weissenbruch MM. Associations between Bronchopulmonary Dysplasia, Insulin-like Growth Factor I and Nutrition. Nutrients 2024; 16:957. [PMID: 38612991 PMCID: PMC11013493 DOI: 10.3390/nu16070957] [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: 02/09/2024] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Insulin-like growth factor I (IGF-I) has been suggested as an important factor in the pathogenesis of bronchopulmonary dysplasia (BPD). In turn, nutrition has been associated with IGF-I levels and could be of importance in the pathogenesis of BPD. This study aimed to explore the association between nutrition, the IGF-I axis and the occurrence of BPD. Eighty-six preterm infants (44 male, mean gestational age: 29.0 weeks (standard deviation: 1.7 weeks)) were enrolled in an observational study. Serum IGF-I (µg/L) and insulin-like growth factor binding protein 3 (IGFBP-3; mg/L) were measured at birth and at 2, 4 and 6 weeks postnatal age. BPD was diagnosed at 36 weeks postmenstrual age. Twenty-nine infants were diagnosed with BPD. For every µg/L per week increase in IGF-I, the odds of BPD decreased (0.68, 95% CI 0.48-0.96, corrected for gestational age). The change in IGF-I in µg/L/week, gestational age in weeks and a week of predominant donor human milk feeding were associated with the occurrence of BPD in the multivariable analysis (respectively, OR 0.63 (0.43-0.92), OR 0.44 (0.26-0.76) and 7.6 (1.2-50.4)). IGFBP-3 was not associated with the occurrence of BPD in the multivariable analysis. In conclusion, a slow increase in IGF-I levels and a lower gestational age increase the odds of BPD. Donor human milk might increase the odds of BPD and should be further explored.
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Affiliation(s)
- Dana F. J. Yumani
- Division of Neonatology, Department of Pediatrics, Location VU University Medical Center, Amsterdam University Medical Centers, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands; (F.H.W.); (M.M.v.W.)
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13
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Goryunov K, Ivanov M, Kulikov A, Shevtsova Y, Burov A, Podurovskaya Y, Zubkov V, Degtyarev D, Sukhikh G, Silachev D. A Review of the Use of Extracellular Vesicles in the Treatment of Neonatal Diseases: Current State and Problems with Translation to the Clinic. Int J Mol Sci 2024; 25:2879. [PMID: 38474125 DOI: 10.3390/ijms25052879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Neonatal disorders, particularly those resulting from prematurity, pose a major challenge in health care and have a significant impact on infant mortality and long-term child health. The limitations of current therapeutic strategies emphasize the need for innovative treatments. New cell-free technologies utilizing extracellular vesicles (EVs) offer a compelling opportunity for neonatal therapy by harnessing the inherent regenerative capabilities of EVs. These nanoscale particles, secreted by a variety of organisms including animals, bacteria, fungi and plants, contain a repertoire of bioactive molecules with therapeutic potential. This review aims to provide a comprehensive assessment of the therapeutic effects of EVs and mechanistic insights into EVs from stem cells, biological fluids and non-animal sources, with a focus on common neonatal conditions such as hypoxic-ischemic encephalopathy, respiratory distress syndrome, bronchopulmonary dysplasia and necrotizing enterocolitis. This review summarizes evidence for the therapeutic potential of EVs, analyzes evidence of their mechanisms of action and discusses the challenges associated with the implementation of EV-based therapies in neonatal clinical practice.
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Affiliation(s)
- Kirill Goryunov
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow 117198, Russia
| | - Mikhail Ivanov
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow 117198, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow 119992, Russia
| | - Andrey Kulikov
- Medical Institute, Patrice Lumumba Peoples' Friendship University of Russia (RUDN University), Moscow 117198, Russia
| | - Yulia Shevtsova
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow 117198, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow 119992, Russia
| | - Artem Burov
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow 117198, Russia
| | - Yulia Podurovskaya
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow 117198, Russia
| | - Victor Zubkov
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow 117198, Russia
| | - Dmitry Degtyarev
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow 117198, Russia
| | - Gennady Sukhikh
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow 117198, Russia
| | - Denis Silachev
- V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology, Moscow 117198, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow 119992, Russia
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14
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Malinczak CA, Fonseca W, Hrycaj SM, Morris SB, Rasky AJ, Yagi K, Wellik DM, Ziegler SF, Zemans RL, Lukacs NW. Early-life pulmonary viral infection leads to long-term functional and lower airway structural changes in the lungs. Am J Physiol Lung Cell Mol Physiol 2024; 326:L280-L291. [PMID: 38290164 PMCID: PMC11281791 DOI: 10.1152/ajplung.00300.2023] [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: 11/02/2023] [Revised: 01/03/2024] [Accepted: 01/17/2024] [Indexed: 02/01/2024] Open
Abstract
Early-life respiratory virus infections have been correlated with enhanced development of childhood asthma. In particular, significant numbers of respiratory syncytial virus (RSV)-hospitalized infants go on to develop lung disease. It has been suggested that early-life viral infections may lead to altered lung development or repair that negatively impacts lung function later in life. Our data demonstrate that early-life RSV infection modifies lung structure, leading to decreased lung function. At 5 wk postneonatal RSV infection, significant defects are observed in baseline pulmonary function test (PFT) parameters consistent with decreased lung function as well as enlarged alveolar spaces. Lung function changes in the early-life RSV-infected group continue at 3 mo of age. The altered PFT and structural changes induced by early-life RSV were mitigated in TSLPR-/- mice that have previously been shown to have reduced immune cell accumulation associated with a persistent Th2 environment. Importantly, long-term effects were demonstrated using a secondary RSV infection 3 mo following the initial early-life RSV infection and led to significant additional defects in lung function, with severe mucus deposition within the airways, and consolidation of the alveolar spaces. These studies suggest that early-life respiratory viral infection leads to alterations in lung structure/repair that predispose to diminished lung function later in life.NEW & NOTEWORTHY These studies outline a novel finding that early-life respiratory virus infection can alter lung structure and function long-term. Importantly, the data also indicate that there are critical links between inflammatory responses and subsequent events that produce a more severe pathogenic response later in life. The findings provide additional data to support that early-life infections during lung development can alter the trajectory of airway function.
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Affiliation(s)
| | - Wendy Fonseca
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, United States
| | - Steven M Hrycaj
- Department of Internal Medicine, Pulmonary, University of Michigan, Ann Arbor, Michigan, United States
| | - Susan B Morris
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, United States
| | - Andrew J Rasky
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, United States
| | - Kazuma Yagi
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, United States
| | - Deneen M Wellik
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, Wisconsin, United States
| | - Steven F Ziegler
- Immunology Program, Benaroya Research Institute, Seattle, Washington, United States
| | - Rachel L Zemans
- Department of Internal Medicine, Pulmonary, University of Michigan, Ann Arbor, Michigan, United States
| | - Nicholas W Lukacs
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, United States
- Mary H. Weiser Food Allergy Center, University of Michigan, Ann Arbor, Michigan, United States
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15
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Kelchtermans J, Aoyama BC, Rice JL, Martin A, Collaco JM, McGrath-Morrow SA. Ambient Air Pollution and Outpatient Morbidities in Bronchopulmonary Dysplasia. Ann Am Thorac Soc 2024; 21:88-93. [PMID: 37703519 PMCID: PMC10867919 DOI: 10.1513/annalsats.202302-096oc] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 09/13/2023] [Indexed: 09/15/2023] Open
Abstract
Rationale: Bronchopulmonary dysplasia (BPD) is the most common long-term complication of prematurity. Although socioeconomic status is associated with BPD morbidities, the drivers of this association are poorly understood. In the United States, ambient air pollution (AAP) exposure is linked to both race/ethnicity and socioeconomic status. Furthermore, AAP exposure is known to have a detrimental effect on respiratory health in children. Objectives: To assess if AAP exposure is linked to BPD morbidity in the outpatient setting. Methods: Participants with BPD were recruited from outpatient clinics at Johns Hopkins University and the Children's Hospital of Philadelphia between 2008 and 2021 (N = 800) and divided into low, moderate, and high AAP exposure groups, based on publicly available U.S. Environmental Protection Agency data. Clinical data were obtained by chart review and caregiver questionnaires. Results: Non-White race, home ventilator use, and lower median household income were associated with higher degrees of air pollution exposure. After adjustment for these factors, moderate and high air pollution exposure were associated with requiring systemic steroids (odds ratio, 1.78 and 2.17, respectively) compared with low air pollution. Similarly, high air pollution exposure was associated with emergency department visits (odds ratio, 1.59). Conclusions: This study demonstrates an association between AAP exposure and BPD morbidity after initial hospital discharge. AAP exposure was closely linked to race and median household income. As such, it supports the notion that AAP exposure may be contributing to health disparities in BPD outcomes. Further studies directly measuring exposure and establishing a link between biomarkers of exposure and outcomes are prerequisites to developing targeted interventions protecting this vulnerable population.
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Affiliation(s)
- Jelte Kelchtermans
- Division of Pulmonary Medicine and Sleep, Children’s Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; and
| | - Brianna C. Aoyama
- Eudowood Division of Pediatric Respiratory Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jessica L. Rice
- Division of Pulmonary Medicine and Sleep, Children’s Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; and
| | - Amanda Martin
- Division of Pulmonary Medicine and Sleep, Children’s Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; and
| | - Joseph M. Collaco
- Eudowood Division of Pediatric Respiratory Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Sharon A. McGrath-Morrow
- Division of Pulmonary Medicine and Sleep, Children’s Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; and
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16
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Wickramasinghe LC, Tsantikos E, Kindt A, Raftery AL, Gottschalk TA, Borger JG, Malhotra A, Anderson GP, van Wijngaarden P, Hilgendorff A, Hibbs ML. Granulocyte Colony-Stimulating Factor is a Determinant of Severe Bronchopulmonary Dysplasia and Coincident Retinopathy. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:2001-2016. [PMID: 37673326 DOI: 10.1016/j.ajpath.2023.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 07/05/2023] [Accepted: 07/25/2023] [Indexed: 09/08/2023]
Abstract
Bronchopulmonary dysplasia (BPD), also called chronic lung disease of immaturity, afflicts approximately one third of all extremely premature infants, causing lifelong lung damage. There is no effective treatment other than supportive care. Retinopathy of prematurity (ROP), which impairs vision irreversibly, is common in BPD, suggesting a related pathogenesis. However, specific mechanisms of BPD and ROP are not known. Herein, a neonatal mouse hyperoxic model of coincident BPD and retinopathy was used to screen for candidate mediators, which revealed that granulocyte colony-stimulating factor (G-CSF), also known as colony-stimulating factor 3, was up-regulated significantly in mouse lung lavage fluid and plasma at postnatal day 14 in response to hyperoxia. Preterm infants with more severe BPD had increased plasma G-CSF. G-CSF-deficient neonatal pups showed significantly reduced alveolar simplification, normalized alveolar and airway resistance, and normalized weight gain compared with wild-type pups after hyperoxic lung injury. This was associated with a marked reduction in the intensity, and activation state, of neutrophilic and monocytic inflammation and its attendant oxidative stress response, and protection of lung endothelial cells. G-CSF deficiency also provided partial protection against ROP. The findings in this study implicate G-CSF as a pathogenic mediator of BPD and ROP, and suggest the therapeutic utility of targeting G-CSF biology to treat these conditions.
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Affiliation(s)
- Lakshanie C Wickramasinghe
- Leukocyte Signalling Laboratory, Department of Immunology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Evelyn Tsantikos
- Leukocyte Signalling Laboratory, Department of Immunology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Alida Kindt
- Metabolomics and Analytics Centre, Leiden University, Leiden, the Netherlands
| | - April L Raftery
- Leukocyte Signalling Laboratory, Department of Immunology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Timothy A Gottschalk
- Leukocyte Signalling Laboratory, Department of Immunology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Jessica G Borger
- Leukocyte Signalling Laboratory, Department of Immunology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Atul Malhotra
- Early Neurodevelopment Clinic, Monash Children's Hospital, Clayton, Victoria, Australia; Department of Paediatrics, Monash University, Clayton, Victoria, Australia
| | - Gary P Anderson
- Lung Health Research Centre, Department of Biochemistry and Pharmacology, University of Melbourne, Victoria, Australia
| | - Peter van Wijngaarden
- Division of Ophthalmology, Department of Surgery, University of Melbourne, Melbourne, Victoria, Australia; Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
| | - Anne Hilgendorff
- Institute for Lung Health and Immunity, Helmholtz Zentrum Muenchen, Munich, Germany; Center for Comprehensive Developmental Care, Ludwig-Maximilian Hospital, Ludwig-Maximilian University, Munich, Germany
| | - Margaret L Hibbs
- Leukocyte Signalling Laboratory, Department of Immunology, Central Clinical School, Monash University, Melbourne, Victoria, Australia.
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17
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Yang X, Bao Z, Lei X, Wang X, Zhao S, Du F, Liu X, Dong W. Omeprazole activates aryl hydrocarbon receptor to reduce hyperoxia-induced oxidative stress in the peripheral blood mononuclear cells from premature infants. J Matern Fetal Neonatal Med 2023; 36:2272577. [PMID: 37884440 DOI: 10.1080/14767058.2023.2272577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 10/14/2023] [Indexed: 10/28/2023]
Abstract
OBJECTIVE To investigate the correlation between the aryl hydrocarbon receptor (AhR) and reactive oxygen species (ROS) in peripheral blood mononuclear cells (PBMCs) of premature infants, to demonstrate the protective role of AhR against hyperoxia-induced oxidative stress in premature infants and to provide a rational basis for the use of omeprazole (OM) as a new treatment for bronchopulmonary dysplasia (BPD). METHODS From January 2021 to June 2021, 1-3 ml of discarded peripheral blood was collected from premature infants of gestational age less than 32 weeks who were not taking inhaled oxygen and were admitted to the Department of Neonatology of the Affiliated Hospital of Southwest Medical University. Using a random number table, the PBMCs were randomly assigned to each of the following groups: the control group, air + OM group, hyperoxia group, and hyperoxia + OM group. After 48 h of in vitro modeling and culture, PBMCs and the culture medium of each group were collected. Immunofluorescence analysis was used to examine ROS levels in PBMCs. A full-spectrum spectrophotometer was used to examine malondialdehyde (MDA) levels in the culture medium. Enzyme-linked immunosorbent assay (ELISA) was used to examine monocyte chemotactic protein 1 (MCP-1) levels in culture medium. Immunofluorescence analysis was used to examine the intracellular localization of AhR. Western blotting was used to examine the expression level of AhR in PBMCs. RESULTS Compared with those in the control group, the levels of ROS, MDA, and MCP-1 and the cytoplasm-nuclear translocation rate of AhR in the air + OM group did not change significantly (p > 0.05), but the expression level of AhR increased significantly (p < 0.05). The levels of ROS, MDA, and MCP-1 and the cytoplasm-nuclear translocation rate of AhR significantly increased in the hyperoxia group (p < 0.05), and the expression level of AhR was significantly reduced (p < 0.05). Compared with those in the hyperoxia group, the levels of ROS, MDA, and MCP-1 in the hyperoxia + OM group were significantly reduced (p < 0.05), and the cytoplasm-nuclear translocation rate of AhR and the expression level of AhR were significantly increased (p < 0.05), but did not reach the level of the control group (p < 0.05). CONCLUSION OM can activate AhR to inhibit hyperoxia-induced oxidative stress in the PBMCs from premature infants.
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Affiliation(s)
- Xi Yang
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Centre for Birth Defects, Luzhou, China
| | - Zhengrong Bao
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Centre for Birth Defects, Luzhou, China
| | - Xiaoping Lei
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Centre for Birth Defects, Luzhou, China
| | - Xia Wang
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Centre for Birth Defects, Luzhou, China
| | - Shuai Zhao
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Centre for Birth Defects, Luzhou, China
| | - Fengling Du
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Centre for Birth Defects, Luzhou, China
| | - Xingling Liu
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Centre for Birth Defects, Luzhou, China
| | - Wenbin Dong
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Centre for Birth Defects, Luzhou, China
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18
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Ge Y, Liu Y, Ji B, Fang Y, Xie Y, Sakurai R, Wang J, Zhang Z, Wang Y, Wang X, Rehan VK. Evidence for Wnt signaling's central involvement in perinatal nicotine exposure-induced offspring lung pathology and its modulation by electroacupuncture. Biomed Pharmacother 2023; 168:115824. [PMID: 37925937 DOI: 10.1016/j.biopha.2023.115824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/22/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023] Open
Abstract
OBJECTIVE Many factors during pregnancy can induce intrauterine growth restriction (IUGR), resulting in various adverse perinatal outcomes such as low birth weight and multiple organ disorders. Among these factors, prenatal smoke/nicotine exposure is a common cause of IUGR, often associated with altered fetal lung development. The classical Wnt signaling pathway plays a vital role in lung development, and its alterations are commonly associated with developmental lung pathologies. The purpose of this study was to determine whether electroacupuncture (EA) at "Zusanli" (ST 36) points protects perinatal nicotine exposure (PNE)-induced offspring lung dysplasia through Wnt/β-catenin signaling pathway and to identify specific Wnt signaling pathway targets of EA. METHODS Following a well-established protocol, nicotine (1 mg/kg/ body weight) was administered subcutaneously to pregnant Sprague Dawley rat dams from gestational day 6 to postnatal day 21. In the EA group, dams were treated with EA at both ST 36 acupoints, while in another experimental group, Wnt/β-catenin signaling pathway agonist was injected subcutaneously (2 mg/kg/ body weight). Offspring body weight (PND 1, 7, 14, and 21), lung weight, Wnt signaling markers, pulmonary function, and lung morphology were determined at sacrifice on PND 21. Specifically, Western blotting and Real-time PCR were used to detect the protein and mRNA levels of critical Wnt signaling markers Wnt2, Wnt7b, FZD4, FZD7, LRP5, and LRP6 in the offspring lung. The protein levels of β-catenin in lung tissue of offspring rats were detected by ELISA that of LEF-1 by Western blotting. RESULTS Compared to the control group, the body and lung weights of the offspring rats were significantly decreased in the nicotine-only exposed group. The pulmonary function determined as FVC, PEF, TV, and Cdyn was also significantly decreased, while PIF was significantly increased. The protein levels and mRNA expression of Wnt2, Wnt7b, FZD4, FZD7, LRP5, and LRP6 in the lung tissue of the PNE offspring rats were significantly increased. With EA administration at ST 36 acupoints concomitant with nicotine administration, the body and lung weights, pulmonary function (FVC, PEF, PIF, TV, and Cdyn), protein and mRNA levels Wnt signaling pathway markers (Wnt2, Wnt7b, FZD4, FZD7, LRP5, LRP6, β-catenin, and LEF-1) normalized and were not different from the control group. Notably, Wnt agonists agonist administration blocked the protective effects of EA against PNE-induced lung morphological, molecular, and function changes, highlighting the central significance of Wnt pathway signaling in PNE-induced offspring pulmonary pathology and its modulation by EA at ST 36 acupoints. CONCLUSION Concomitant maternal EA at ST 36 acupoints from gestational day 6 to PND 21 protects against offspring PNE-induced lung phenotype. The protective effect is achieved by regulating the expression of Wnt ligand proteins (Wnt2 and Wnt7b) and receptor proteins (FZD4, FZD7, LRP5, and LRP6) upstream of the Wnt/β-catenin signaling pathway intermediates β-catenin, and LEF-1.
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Affiliation(s)
- Yunpeng Ge
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Yitian Liu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Bo Ji
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Yang Fang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yana Xie
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Reiko Sakurai
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90502, USA
| | - Jiajia Wang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Ziyue Zhang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yifei Wang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Xu Wang
- School of Traditional Chinese Medicine, Beijing University of Traditional Chinese Medicine, Beijing 102488, China
| | - Virender K Rehan
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, David Geffen School of Medicine at UCLA, Los Angeles, CA 90502, USA
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19
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Demirtas MS, Kilicbay F, Erdal H, Tunc G. Oxidative Stress Levels and Dynamic Thiol-Disulfide Balance in Preterm Newborns with Bronchopulmonary Dysplasia. Lab Med 2023; 54:587-592. [PMID: 36896684 DOI: 10.1093/labmed/lmad010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023] Open
Abstract
OBJECTIVE The aim of this study was to assess the oxidative stress (OS) levels and dynamic thiol-disulfide balance in preterm newborns with bronchopulmonary dysplasia (BPD). METHODS This prospective study included newborns separated into 2 groups, those with BPD (case) or without BPD (control). The 2 groups were compared by clinical and laboratory findings. The OS parameters total oxidant status (TOS), total antioxidant status (TAS), OS index (OSI), native thiol (NT), and total thiol were measured within the first day after birth. Oxygen requirements were measured using the fraction of inspired oxygen (FIO2) recorded in the first hour after birth/admission and the average FIO2 within 28 days of the birth. RESULTS Infants diagnosed with BPD had a significantly lower gestational age and birth weight and a lower 5-min Apgar score (P < .05). Infants with BPD also had a higher rate of respiratory distress syndrome, rate of use of surfactant therapy, duration of ventilation therapy, and duration of hospital stay compared with control (P = .001, P = .001, P = .001, and P = .001, respectively). Plasma TAS and NT levels of newborns with BPD were significantly lower than newborns without BPD (P < .05). In the BPD group, plasma TOS and OSI levels were significantly higher than in the control group. CONCLUSION We found that OS was increased in newborns with BPD. The clinical significance of this study will provide the clinician with a different perspective on BPD by determining the dynamic thiol disulfide balance.
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Affiliation(s)
| | - Fatih Kilicbay
- Division of Neonatology, Department of Pediatrics, Sivas Cumhuriyet University Faculty of Medicine, Sivas, Turkey
| | - Huseyin Erdal
- Department of Medical Genetics, Aksaray University Faculty of Medicine, Aksaray, Turkey
| | - Gaffari Tunc
- Division of Neonatology, Department of Pediatrics, Sivas Cumhuriyet University Faculty of Medicine, Sivas, Turkey
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20
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Chu X, Zhang X, Weng B, Yin X, Cai C. Erythromycin Attenuates Hyperoxia Induced Lung Injury by Enhancing GSH Expression and Inhibiting Expression of Inflammatory Cytokines. Fetal Pediatr Pathol 2023; 42:766-774. [PMID: 37341579 DOI: 10.1080/15513815.2023.2223722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 06/06/2023] [Indexed: 06/22/2023]
Abstract
Introduction: Oxidative stress and inflammation have proven to be key factors contributing to the occurrence of BPD. Erythromycin has been shown to be effective in treating the redox imbalance seen in many non-bacterial infectious chronic inflammatory diseases. Methods: Ninety-six premature rats were randomly divided into air + saline chloride group, air + erythromycin group, hyperoxia + saline chloride group and hyperoxia + erythromycin group. Lung tissue specimens were collected from 8 premature rats in each group on days 1, 7 and 14, respectively. Results: Pulmonary pathological changes in premature rats after hyperoxia exposure were similar to those of BPD. Hyperoxia exposure induced high expression of GSH, TNF-α, and IL-1β. Erythromycin intervention caused a further increase in GSH expression and a decrease in TNF-α and IL-1β expression. Conclusion: GSH, TNF-α and IL-1β are all involved in the development of BPD. Erythromycin may alleviate BPD by enhancing the expression of GSH and inhibiting the release of inflammatory mediators.
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Affiliation(s)
- Xiaoyun Chu
- Department of Neonatology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoyue Zhang
- Department of Neonatology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Bowen Weng
- Department of Neonatology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaotong Yin
- Department of Neonatology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Cheng Cai
- Department of Neonatology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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21
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Zhou Y, Zhu Y, Jin W, Yan R, Fang Y, Zhang F, Tang T, Chen S, Chen J, Zhang F, Yu Z, Zang L, Yu Z. Tat-P combined with GAPR1 releases Beclin1 to promote autophagy and improve Bronchopulmonary dysplasia model. iScience 2023; 26:107509. [PMID: 37636035 PMCID: PMC10448080 DOI: 10.1016/j.isci.2023.107509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 06/25/2023] [Accepted: 07/25/2023] [Indexed: 08/29/2023] Open
Abstract
Long-term exposure to hyperoxia can leading to the bronchopulmonary dysplasia (BPD). The progression of BPD is primarily driven by the apoptosis of alveolar epithelial cells, and the regulation of autophagy has an impact on apoptosis. This study aims to investigate the therapeutic potential and underlying mechanism of an autophagy-promoting peptide (Tat-P) in ameliorating BPD. In vitro experiments demonstrated that Tat-P promoted autophagy and partially prevented apoptosis caused by exposure to hyperoxia. Further investigation into the mechanism revealed that Tat-P competitively binds to GAPR1, displacing the Beclin1 protein and thereby inhibiting the apoptosis. In vivo experiments conducted on Sprague-Dawley pups exposed to high oxygen levels demonstrated that Tat-P promoted autophagy and reduced apoptosis in lung tissues and ameliorated BPD-related phenotypes. Our findings elucidate the underlying mechanisms and effects of Tat-P in enhancing autophagy and preventing apoptosis. This study presents an approach for the prevention and treatment of BPD.
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Affiliation(s)
- Yahui Zhou
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
| | - Yuting Zhu
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
| | - Weilai Jin
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
| | - Ru Yan
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
| | - Yuanyuan Fang
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
| | - Fan Zhang
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
| | - Tonghui Tang
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
| | - Si Chen
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
| | - Jing Chen
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
| | - Fan Zhang
- Department of Pediatrics, Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong, China
| | - Zhangbin Yu
- Department of Neonatology, Shenzhen People’s Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, China
- The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Le Zang
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
| | - Zhiwei Yu
- Department of Neonatology, Wuxi Children’s Hospital affiliated to Jiangnan University, Wuxi, China
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22
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Yang X, Jin Z, Wang X, Wu J, Yu W, Yao S, Zhang L, Gan C. Nesfatin-1 alleviates hyperoxia-induced lung injury in newborn mice by inhibiting oxidative stress through regulating SIRT1/PGC-1α pathway. Cytokine 2023; 169:156239. [PMID: 37301191 DOI: 10.1016/j.cyto.2023.156239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 06/12/2023]
Abstract
Bronchopulmonary dysplasia (BPD) is a pulmonary disease commonly observed in premature infants and it is reported that oxidative stress is a critical induction factor in BPD and is considered as a promising target for treating BPD. Nesfatin-1 is a brain-gut peptide with inhibitory effects on food intake, which is recently evidenced to show suppressive effect on oxidative stress. The present study aims to explore the therapeutic effect and mechanism of Nesfatin-1 in BPD mice. AECIIs were extracted from newborn rats and exposed to hyperoxia for 24 h, followed by treatment with 5 and 10 nM Nesfatin-1. Declined cell viability, increased apoptotic rate, upregulated Bax, downregulated Bcl-2, increased release of ROS and MDA, and suppressed SOD activity were observed in hyperoxia-treated AECIIs, which were extremely reversed by Nesfatin-1. Newborn rats were exposed to hyperoxia, followed by treated with 10 μg/kg Nesfatin-1 and 20 μg/kg Nesfatin-1. Severe pathological changes, elevated MDA level, and declined SOD activity were observed in lung tissues of BPD mice, which were rescued by Nesfatin-1. Furthermore, the protective effect of Nesfatin-1 on hyperoxia-challenged AECIIs was abolished by silencing SIRT1. Collectively, Nesfatin-1 alleviated hyperoxia-induced lung injury in newborn mice by inhibiting oxidative stress through regulating SIRT1/PGC-1α pathway.
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Affiliation(s)
- Xiaoting Yang
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Zhan Jin
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Xi Wang
- Department of Urology, Quzhou People's Hospital, Min Jiang Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Junmei Wu
- Department of Burns Surgery, Quzhou Hospital of Zhejiang Medical Health Group, Wen Chang Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Wenfu Yu
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Shuihong Yao
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Lixin Zhang
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China
| | - Chunchun Gan
- School of Medicine, Quzhou College of Technology, Jiang Yuan Road, Ke Chen District, Quzhou, Zhejiang 324000, China.
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23
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Yang M, Chen Y, Huang X, Shen F, Meng Y. ETS1 Ameliorates Hyperoxia-Induced Bronchopulmonary Dysplasia in Mice by Activating Nrf2/HO-1 Mediated Ferroptosis. Lung 2023; 201:425-441. [PMID: 37490064 PMCID: PMC10444662 DOI: 10.1007/s00408-023-00639-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 07/13/2023] [Indexed: 07/26/2023]
Abstract
PURPOSE Bronchopulmonary dysplasia (BPD) is associated with hyperoxia-induced oxidative stress-associated ferroptosis. This study examined the effect of E26 oncogene homolog 1 (ETS1) on oxidative stress-associated ferroptosis in BPD. METHODS Hyperoxia-induced A549 cells and neonatal mice were used to establish BPD models. The effects of ETS1 on hyperoxia-induced ferroptosis-like changes in A549 cells were investigated by overexpression of ETS1 plasmid transfection and erastin treatment. Glucose consumption, lactate production, and NADPH levels were assessed by the glucose, lactate, and NADP+/NADPH assay kits, respectively. The potential regulatory relationship between ETS1 and Nrf2/HO-1 was examined by treating hyperoxia-induced A549 cells with the Nrf2 inhibitor ML385. ETS1 effect on the Nrf2 promoter was explored by dual-luciferase reporter and chromatin immunoprecipitation assay. The effect of ETS1 on the symptoms of BPD mice was examined by injecting an adenovirus overexpressing ETS1. RESULTS ETS1 overexpression increased hyperoxia-induced cell viability, glucose consumption, lactate production, and NADPH levels and reduced inflammation and apoptosis in A549 cells. In animal experiments, ETS1 overexpression prevented weight loss, airway enlargement, and reductions in radial alveolar counts in BPD mice, while reducing the mean linear intercept, mean alveolar diameter and inflammation. ETS1 overexpression suppressed PTGS2 and CHAC1 expression, reduced ROS, MDA and ferrous iron (Fe2+) production and increased GSH levels in hyperoxia-induced A549 cells and BPD mice. In addition, ETS1 can bind to the Nrf2 promoter region and thus promote Nrf2 transcription. ETS1 overexpression increased the mRNA and protein levels of Nrf2, HO-1, xCT, and GPX4 in hyperoxia-induced A549 cells and BPD mice. In hyperoxia-induced A549 cells, erastin and ML385 treatment abolished the effect of ETS1 overexpression. CONCLUSION ETS1 is important in oxidative stress-related ferroptosis in a hyperoxia-induced BPD model, and the effect is partially mediated by the Nrf2/HO-1 axis.
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Affiliation(s)
- Min Yang
- Respiratory Department, Hunan Children's Hospital, Changsha, 410007, China.
| | - Yanping Chen
- Respiratory Department, Hunan Children's Hospital, Changsha, 410007, China
| | | | - Fang Shen
- Research Institute of Children, Hunan Children's Hospital, Changsha, 410007, China
| | - Yanni Meng
- Respiratory Department, Hunan Children's Hospital, Changsha, 410007, China
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24
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Verd S, Porta R, Ginovart G, Avila-Alvarez A, García-Muñoz Rodrigo F, Izquierdo Renau M, Ventura PS. Human Milk Feeding Is Associated with Decreased Incidence of Moderate-Severe Bronchopulmonary Dysplasia in Extremely Preterm Infants. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1267. [PMID: 37508764 PMCID: PMC10378323 DOI: 10.3390/children10071267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND An increased rate of bronchopulmonary dysplasia (BPD) is reported in extremely preterm infants. A potential role of human milk feeding in protecting against this condition has been suggested. METHODS A retrospective descriptive study was conducted based on data about morbidity in the population of infants born between 22+0 and 26+6 weeks of gestation, included in the Spanish network SEN1500 during the period 2004-2019 and discharged alive. The primary outcome was moderate-severe BPD. Associated conditions were studied, including human milk feeding at discharge. The temporal trends of BPD and human milk feeding rates at discharge were also studied. RESULTS In the study population of 4341 infants, the rate of moderate-severe BPD was 43.7% and it increased to >50% in the last three years. The factors significantly associated with a higher risk of moderate-severe BPD were birth weight, male sex, high-frequency oscillatory ventilation, duration of invasive mechanical ventilation, inhaled nitric oxide, patent ductus arteriosus, and late-onset sepsis. Exclusive human milk feeding and any amount of human milk at discharge were associated with a lower incidence of moderate-severe BPD (OR 0.752, 95% CI 0.629-0.901 and OR 0.714, 95% CI 0.602-0.847, respectively). During the study period, the proportion of infants with moderate-severe BPD fed any amount of human milk at discharge increased more than twofold. And the proportion of infants with moderate-severe BPD who were exclusively fed human milk at discharge increased at the same rate. CONCLUSIONS Our work shows an inverse relationship between human milk feeding at discharge from the neonatal unit and the occurrence of BPD.
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Affiliation(s)
- Sergio Verd
- Department of Pediatric Care Primary Unit, La Vileta Surgery, Health Sciences Research Institute (IUNICS), Balearic University, 07122 Palma, Spain
| | - Roser Porta
- Department of Pediatrics, Division of Neonatology, Hospital Universitari Germans Trias i Pujol, Badalona, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Gemma Ginovart
- Department of Pediatrics, Division of Neonatology, Hospital Universitari Germans Trias i Pujol, Badalona, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Alejandro Avila-Alvarez
- Division of Neonatology, Complexo Hospitalario Universitario de A Coruña (CHUAC), SERGAS, 15006 A Coruña, Spain
| | - Fermín García-Muñoz Rodrigo
- Division of Neonatology, Complejo Hospitalario Universitario Insular Materno-Infantil, 35016 Las Palmas, Spain
| | | | - Paula Sol Ventura
- Department of Pediatrics, Division of Neonatology, Hospital Universitari Germans Trias i Pujol, Badalona, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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25
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Chen W, Zheng D, Yang C. The Emerging Roles of Ferroptosis in Neonatal Diseases. J Inflamm Res 2023; 16:2661-2674. [PMID: 37396013 PMCID: PMC10312340 DOI: 10.2147/jir.s414316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 06/13/2023] [Indexed: 07/04/2023] Open
Abstract
Ferroptosis is a novel type of programmed cell death involved in many diseases' pathological processes. Ferroptosis is characterized by lipid peroxidation, reactive oxygen species accumulation, and iron metabolism disorder. Newborns are susceptible to ferroptosis due to their special physiological state, which is prone to abnormal iron metabolism and the accumulation of reactive oxygen species. Recent studies have linked ferroptosis to a variety of diseases in the neonatal period (including hypoxic-ischemic encephalopathy, bronchopulmonary dysplasia, and necrotizing enterocolitis). Ferroptosis may become an effective target for the treatment of neonatal-related diseases. In this review, the ferroptosis molecular mechanism, metabolism characteristics of iron and reactive oxygen species in infants, the relationship between ferroptosis and common infant disorders, and the treatment of infant diseases targeted for ferroptosis are systematically summarized.
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Affiliation(s)
- Wenqian Chen
- Department of Neonatology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, People’s Republic of China
| | - Dali Zheng
- Key Laboratory of Stomatology of Fujian Province, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, People’s Republic of China
| | - Changyi Yang
- Department of Neonatology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, People’s Republic of China
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26
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Tong X, Li D, Liu N, Huang W, Zhao X, Zhang D, Xue X, Fu J. Rad1 attenuates DNA double-strand breaks and cell cycle arrest in type II alveolar epithelial cells of rats with bronchopulmonary dysplasia. Mol Med 2023; 29:70. [PMID: 37226090 PMCID: PMC10207718 DOI: 10.1186/s10020-023-00660-3] [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: 03/02/2022] [Accepted: 04/27/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) is the most common and serious chronic lung disease in preterm infants with pathological characteristics of arrested lung development. DNA double-strand breaks (DSBs) are a serious manifestation of oxidative stress damage, but little is known about the role of DSBs in BPD. The current study set out to detect DSB accumulation and cell cycle arrest in BPD and study the expression of genes related to DNA damage and repair in BPD through DNA damage signaling pathway-based PCR array to determine a suitable target to improve arrested lung development associated with BPD. METHODS DSB accumulation and cell cycle arrest were detected in a BPD animal model and primary cells, then a DNA damage signaling pathway-based PCR array was used to identify the target of DSB repair in BPD. RESULTS DSB accumulation and cell cycle arrest were shown in BPD animal model, primary type II alveolar epithelial cells (AECII) and cultured cells after exposure to hyperoxia. Of the 84 genes in the DNA damage-signaling pathway PCR array, eight genes were overexpressed and 11 genes were repressed. Rad1, an important protein for DSB repair, was repressed in the model group. Real-time PCR and western blots were used to verify the microarray results. Next, we confirmed that silencing Rad1 expression aggravated the accumulation of DSBs and cell cycle arrest in AECII cells, whereas its overexpression alleviated DSB accumulation and cell cycle arrest. CONCLUSIONS The accumulation of DSBs in AECII might be an important cause of alveolar growth arrest associated with BPD. Rad1 could be an effective target for intervention to improve this arrest in lung development associated with BPD.
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Affiliation(s)
- Xin Tong
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Danni Li
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Na Liu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wanjie Huang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xinyi Zhao
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Dan Zhang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xindong Xue
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jianhua Fu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China.
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27
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Zaib S, Javed H, Ogaly HA, Khan I. Evaluating the Anti‐Gastric Ulcer Activity of
Aegle marmelos
: A Brief Review. ChemistrySelect 2023. [DOI: 10.1002/slct.202204193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Sumera Zaib
- Department of Basic and Applied Chemistry, Faculty of Science and Technology University of Central Punjab Lahore 54590 Pakistan
| | - Hira Javed
- Department of Basic and Applied Chemistry, Faculty of Science and Technology University of Central Punjab Lahore 54590 Pakistan
| | - Hanan A. Ogaly
- Chemistry Department, College of Science King Khalid University Abha 61421 Saudi Arabia
- Biochemistry and Molecular Biology Department Faculty of Veterinary Medicine, Cairo University Giza 12211 Egypt
| | - Imtiaz Khan
- Manchester Institute of Biotechnology The University of Manchester, 131 Princess Street Manchester M1 7DN United Kingdom
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Artesunate Alleviates Hyperoxia-Induced Lung Injury in Neonatal Mice by Inhibiting NLRP3 Inflammasome Activation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2023; 2023:7603943. [PMID: 36785753 PMCID: PMC9922194 DOI: 10.1155/2023/7603943] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/25/2022] [Accepted: 11/24/2022] [Indexed: 02/06/2023]
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic respiratory disease in preterm infants that may cause persistent lung injury. Artesunate exhibits excellent anti-inflammatory in lung injury caused by various factors. This study aimed to investigate the effect of the artesunate on hyperoxia-induced lung injury in neonatal mice and its mechanism. A BPD model of hyperoxic lung injury in neonatal mice was established after hyperoxia (75% oxygen) exposure for 14 days, and part of the mice received intraperitoneal injections of the artesunate. H&E staining was used to observe the pathology of lung tissue, and the degree of oxidative stress in the lung tissue was determined by commercial kits. The levels of inflammatory cytokines in the serum and lung tissues of neonatal mice were detected by an enzyme-linked immunosorbent assay. Immunohistochemical experiments were performed to further evaluate the expression of IL-1β. The real-time quantitative polymerase chain reaction was used to determine the mRNA level of the NLRP3 inflammasome. The western blot assay was used to measure the levels of NLRP3 inflammasome and NF-κB pathway-related proteins. Artesunate ameliorated weight loss and lung tissue injury in neonatal mice induced by hyperoxia. The level of malondialdehyde was decreased, while the activity of superoxide dismutase and the level of glutathione increased after artesunate treatment. Artesunate reduced the level of inflammation cytokines TNF-α, IL-6, and IL-1β in the serum and lung. Moreover, artesunate inhibited the mRNA expression and protein levels of NLRP3, ASC, and caspase-1, as well as the phosphorylation of the NF-κB and IκBα. Our findings suggest that artesunate treatment can attenuate hyperoxia-induced lung injury in BPD neonatal mice by inhibiting the activation of NLRP3 inflammasome and the phosphorylation of the NF-κB pathway.
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Perrone S, Manti S, Buttarelli L, Petrolini C, Boscarino G, Filonzi L, Gitto E, Esposito SMR, Nonnis Marzano F. Vascular Endothelial Growth Factor as Molecular Target for Bronchopulmonary Dysplasia Prevention in Very Low Birth Weight Infants. Int J Mol Sci 2023; 24:ijms24032729. [PMID: 36769049 PMCID: PMC9916882 DOI: 10.3390/ijms24032729] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/25/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
Bronchopulmonary dysplasia (BPD) still represents an important burden of neonatal care. The definition of the disease is currently undergoing several revisions, and, to date, BPD is actually defined by its treatment rather than diagnostic or clinic criteria. BPD is associated with many prenatal and postnatal risk factors, such as maternal smoking, chorioamnionitis, intrauterine growth restriction (IUGR), patent ductus arteriosus (PDA), parenteral nutrition, sepsis, and mechanical ventilation. Various experimental models have shown how these factors cause distorted alveolar and vascular growth, as well as alterations in the composition and differentiation of the mesenchymal cells of a newborn's lungs, demonstrating a multifactorial pathogenesis of the disease. In addition, inflammation and oxidative stress are the common denominators of the mechanisms that contribute to BPD development. Vascular endothelial growth factor-A (VEGFA) constitutes the most prominent and best studied candidate for vascular development. Animal models have confirmed the important regulatory roles of epithelial-expressed VEGF in lung development and function. This educational review aims to discuss the inflammatory pathways in BPD onset for preterm newborns, focusing on the role of VEGFA and providing a summary of current and emerging evidence.
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Affiliation(s)
- Serafina Perrone
- Neonatology Unit, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy
- Correspondence:
| | - Sara Manti
- Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, Unirsity of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
| | - Luca Buttarelli
- Neonatology Unit, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy
| | - Chiara Petrolini
- Neonatology Unit, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy
| | - Giovanni Boscarino
- Pediatric Clinic, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy
| | - Laura Filonzi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Viale delle Scienze 11, 43125 Parma, Italy
| | - Eloisa Gitto
- Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, Unirsity of Messina, Via Consolare Valeria 1, 98125 Messina, Italy
| | - Susanna Maria Roberta Esposito
- Pediatric Clinic, Pietro Barilla Children’s Hospital, Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy
| | - Francesco Nonnis Marzano
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Viale delle Scienze 11, 43125 Parma, Italy
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Abstract
Bronchopulmonary dysplasia (BPD) in neonates is the most common pulmonary disease that causes neonatal mortality, has complex pathogenesis, and lacks effective treatment. It is associated with chronic obstructive pulmonary disease, pulmonary hypertension, and right ventricular hypertrophy. The occurrence and development of BPD involve various factors, of which premature birth is the most crucial reason for BPD. Under the premise of abnormal lung structure and functional product, newborns are susceptible to damage to oxides, free radicals, hypoxia, infections and so on. The most influential is oxidative stress, which induces cell death in different ways when the oxidative stress balance in the body is disrupted. Increasing evidence has shown that programmed cell death (PCD), including apoptosis, necrosis, autophagy, and ferroptosis, plays a significant role in the molecular and biological mechanisms of BPD and the further development of the disease. Understanding the mode of PCD and its signaling pathways can provide new therapeutic approaches and targets for the clinical treatment of BPD. This review elucidates the mechanism of BPD, focusing on the multiple types of PCD in BPD and their molecular mechanisms, which are mainly based on experimental results obtained in rodents.
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31
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Jiang J, Wang J, Li C, Mo L, Huang D. P311 knockdown alleviates hyperoxia-induced injury by inactivating the Smad3 signaling pathway in type II alveolar epithelial cells. Mol Cell Biochem 2023; 478:277-284. [PMID: 35779227 DOI: 10.1007/s11010-022-04500-6] [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: 11/18/2021] [Accepted: 06/06/2022] [Indexed: 02/02/2023]
Abstract
P311 is associated with alveolar formation and development. However, the role and possible mechanism of P311 in hyperoxia-induced injury in type II alveolar epithelial cells (AEC II) need to be elucidated. In our study, rat AEC II (RLE-6TN) were exposure to normoxia (21% O2 and 5% CO2) or hyperoxia (95% O2 and 5% CO2) for 24 h, followed by determination of P311 expression. After knockdown of P311 and hyperoxic treatment, cell viability, cell cycle progression, apoptosis and the Smad3 signaling pathway were examined. Rat AEC II were pretreated with SIS3 HCl for 4 h and then subjected to P311 overexpression plasmid transfection and hyperoxic exposure. Then, cell viability, apoptosis and the Smad3 signaling pathway were determined. The results showed that hyperoxic exposure significantly elevated P311 levels in rat AEC II. P311 knockdown increased cell viability, accelerated cell cycle progression and inhibited apoptosis, as well as suppression of the Smad3 signaling pathway in hyperoxia-exposed AEC II. Additionally, we found that P311 overexpression enhanced the effects of hyperoxia. Interestingly, SIS3 HCl incubation blocked the effects of P311 overexpression on rat AEC II function under hyperoxic condition, as evidenced by an increase in cell viability, and suppressions of apoptosis and the Smad3 signaling pathway. These results indicate that P311 knockdown may ameliorate hyperoxia-induced injury by inhibiting the Smad3 signaling pathway in rat AEC II. P311 may be a novel target for the treatment of hyperoxia-induced lung injury and even bronchopulmonary dysplasia (BPD).
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Affiliation(s)
- Jun Jiang
- Department of Pediatric Intensive Care Unit, Guizhou Provincial People's Hospital, 83 Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Juan Wang
- Department of Pediatrics, Affiliated Hospital of Hebei University, Handan, China
| | - Cen Li
- Department of Pediatric Intensive Care Unit, Guizhou Provincial People's Hospital, 83 Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Lianqin Mo
- Department of Pediatric Intensive Care Unit, Guizhou Provincial People's Hospital, 83 Zhongshan East Road, Guiyang, 550002, Guizhou, China
| | - Dong Huang
- Department of Pediatric Intensive Care Unit, Guizhou Provincial People's Hospital, 83 Zhongshan East Road, Guiyang, 550002, Guizhou, China.
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Garcia MR, Comstock BA, Patel RM, Tolia VN, Josephson CD, Georgieff MK, Rao R, Monsell SE, Juul SE, Ahmad KA. Iron supplementation and the risk of bronchopulmonary dysplasia in extremely low gestational age newborns. Pediatr Res 2023; 93:701-707. [PMID: 35725917 PMCID: PMC9763546 DOI: 10.1038/s41390-022-02160-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 04/26/2022] [Accepted: 05/22/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND The aim of this study was to determine the relationship between iron exposure and the development of bronchopulmonary dysplasia (BPD). METHODS A secondary analysis of the PENUT Trial dataset was conducted. The primary outcome was BPD at 36 weeks gestational age and primary exposures of interest were cumulative iron exposures in the first 28 days and through 36 weeks' gestation. Descriptive statistics were calculated for study cohort characteristics with analysis adjusted for the factors used to stratify randomization. RESULTS Of the 941 patients, 821 (87.2%) survived to BPD evaluation at 36 weeks, with 332 (40.4%) diagnosed with BPD. The median cohort gestational age was 26 weeks and birth weight 810 g. In the first 28 days, 76% of infants received enteral iron and 55% parenteral iron. The median supplemental cumulative enteral and parenteral iron intakes at 28 days were 58.5 and 3.1 mg/kg, respectively, and through 36 weeks' 235.8 and 3.56 mg/kg, respectively. We found lower volume of red blood cell transfusions in the first 28 days after birth and higher enteral iron exposure in the first 28 days after birth to be associated with lower rates of BPD. CONCLUSIONS We find no support for an increased risk of BPD with iron supplementation. TRIAL REGISTRATION NUMBER NCT01378273. https://clinicaltrials.gov/ct2/show/NCT01378273 IMPACT: Prior studies and biologic plausibility raise the possibility that iron administration could contribute to the pathophysiology of oxidant-induced lung injury and thus bronchopulmonary dysplasia in preterm infants. For 24-27-week premature infants, this study finds no association between total cumulative enteral iron supplementation at either 28-day or 36-week postmenstrual age and the risk for developing bronchopulmonary dysplasia.
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Affiliation(s)
- Melissa R Garcia
- San Antonio Uniformed Services Health Education Consortium, San Antonio, TX, USA
| | | | - Ravi M Patel
- Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Veeral N Tolia
- Pediatrix Medical Group, Dallas, TX, USA
- Baylor University Medical Center, Dallas, TX, USA
| | - Cassandra D Josephson
- Emory University School of Medicine and Center for Transfusion and Cellular Therapies, Atlanta, GA, USA
| | | | | | | | | | - Kaashif A Ahmad
- San Antonio Uniformed Services Health Education Consortium, San Antonio, TX, USA.
- Pediatrix Medical Group, San Antonio, TX, USA.
- Baylor College of Medicine, San Antonio, TX, USA.
- Pediatrix and Obstetrix Specialists of Houston, Houston, TX, USA.
- Methodist Children's Hospital, San Antonio, TX, USA.
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Xuefei Y, Dongyan L, Tianming L, Hejuan Z, Jianhua F. O-linked N-acetylglucosamine affects mitochondrial homeostasis by regulating Parkin-dependent mitophagy in hyperoxia-injured alveolar type II cells injury. Respir Res 2023; 24:16. [PMID: 36647045 PMCID: PMC9841680 DOI: 10.1186/s12931-022-02287-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 12/09/2022] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND The level of linked N-acetylglucosamine (O-GlcNAc) has been proved to be a sensor of cell state, but its relationship with hyperoxia-induced alveolar type 2 epithelial cells injure and bronchopulmonary dysplasia (BPD) has not been clarified. In this study, we evaluated if these effects ultimately led to functional damage in hyperoxia-induced alveolar cells. METHODS We treated RLE-6TN cells at 85% hyperoxia for 0, 24 and 48 h with Thiamet G (TG), an OGA inhibitor; OSMI-1 (OS), an OGT inhibitor; or with UDP-GlcNAc, which is involved in synthesis of O-GlcNAc as a donor. The metabolic rerouting, cell viability and apoptosis resulting from the changes in O-GlcNAc glycosyltransferase levels were evaluated in RLE-6TN cells after hyperoxia exposure. We constructed rat Park2 overexpression and knockdown plasmmids for in vitro verification and Co-immunoprecipitation corroborated the binding of Parkin and O-GlcNAc. Finally, we assessed morphological detection in neonatal BPD rats with TG and OS treatment. RESULTS We found a decrease in O-GlcNAc content and levels of its metabolic enzymes in RLE-6TN cells under hyperoxia. However, the inhibition of OGT function with OSMI-1 ameliorated hyperoxia-induced lung epithelial cell injury, enhanced cell metabolism and viability, reduced apoptosis, and accelerated the cell proliferation. Mitochondrial homeostasis was affected by O-GlcNAc and regulated Parkin. CONCLUSION The results revealed that the decreased O-GlcNAc levels and increased O-GlcNAcylation of Parkin might cause hyperoxia-induced alveolar type II cells injurys.
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Affiliation(s)
- Yu Xuefei
- grid.412467.20000 0004 1806 3501Department of Pediatrics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning 110004 People’s Republic of China
| | - Liu Dongyan
- grid.412467.20000 0004 1806 3501Department of Gastroenterology and Medical Research Center, Liaoning Key Laboratory of Research and Application of Animal Models for Environmental and Metabolic Diseases, Shengjing Hospital of China Medical University, Shenyang, 110004 Liaoning China
| | - Li Tianming
- grid.412467.20000 0004 1806 3501Department of Gastroenterology and Medical Research Center, Liaoning Key Laboratory of Research and Application of Animal Models for Environmental and Metabolic Diseases, Shengjing Hospital of China Medical University, Shenyang, 110004 Liaoning China
| | - Zheng Hejuan
- grid.412467.20000 0004 1806 3501Department of Pediatrics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning 110004 People’s Republic of China
| | - Fu Jianhua
- grid.412467.20000 0004 1806 3501Department of Pediatrics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning 110004 People’s Republic of China
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Genetic Predisposition to Hepatocellular Carcinoma. Metabolites 2022; 13:metabo13010035. [PMID: 36676960 PMCID: PMC9864136 DOI: 10.3390/metabo13010035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Liver preneoplastic and neoplastic lesions of the genetically susceptible F344 and resistant BN rats cluster, respectively, with human HCC with better (HCCB) and poorer prognosis (HCCP); therefore, they represent a valid model to study the molecular alterations determining the genetic predisposition to HCC and the response to therapy. The ubiquitin-mediated proteolysis of ERK-inhibitor DUSP1, which characterizes HCC progression, favors the unrestrained ERK activity. DUSP1 represents a valuable prognostic marker, and ERK, CKS1, or SKP2 are potential therapeutic targets for human HCC. In DN (dysplastic nodule) and HCC of F344 rats and human HCCP, DUSP1 downregulation and ERK1/2 overexpression sustain SKP2-CKS1 activity through FOXM1, the expression of which is associated with a susceptible phenotype. SAM-methyl-transferase reactions and SAM/SAH ratio are regulated by GNMT. In addition, GNMT binds to CYP1A, PARP1, and NFKB and PREX2 gene promoters. MYBL2 upregulation deregulates cell cycle and induces the progression of premalignant and malignant liver. During HCC progression, the MYBL2 transcription factor positively correlates with cells proliferation and microvessel density, while it is negatively correlated to apoptosis. Hierarchical supervised analysis, regarding 6132 genes common to human and rat liver, showed a gene expression pattern common to normal liver of both strains and BN nodules, and a second pattern is observed in F344 nodules and HCC of both strains. Comparative genetics studies showed that DNs of BN rats cluster with human HCCB, while F344 DNs and HCCs cluster with HCCP.
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35
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Pathogenesis of Bronchopulmonary Dysplasia: Role of Oxidative Stress from 'Omics' Studies. Antioxidants (Basel) 2022; 11:antiox11122380. [PMID: 36552588 PMCID: PMC9774798 DOI: 10.3390/antiox11122380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/24/2022] [Accepted: 11/26/2022] [Indexed: 12/05/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) remains the most common respiratory complication of prematurity as younger and smaller infants are surviving beyond the immediate neonatal period. The recognition that oxidative stress (OS) plays a key role in BPD pathogenesis has been widely accepted since at least the 1980s. In this article, we examine the interplay between OS and genetic regulation and review 'omics' data related to OS in BPD. Data from animal models (largely models of hyperoxic lung injury) and from human studies are presented. Epigenetic and transcriptomic analyses have demonstrated several genes related to OS to be differentially expressed in murine models that mimic BPD as well as in premature infants at risk of BPD development and infants with established lung disease. Alterations in the genetic regulation of antioxidant enzymes is a common theme in these studies. Data from metabolomics and proteomics have also demonstrated the potential involvement of OS-related pathways in BPD. A limitation of many studies includes the difficulty of obtaining timely and appropriate samples from human patients. Additional 'omics' studies could further our understanding of the role of OS in BPD pathogenesis, which may prove beneficial for prevention and timely diagnosis, and aid in the development of targeted therapies.
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36
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Vreugdenhil M, Bergmans C, van Heel WJM, Rövekamp-Abels LWW, Wewerinke L, Lopes Cardozo RH, van Goudoever JB, Brus F, Akkermans MD. The effect of individualized iron supplementation on iron status in Dutch preterm infants born between 32 and 35 weeks of gestational age: evaluation of a local guideline. J Matern Fetal Neonatal Med 2022; 35:10279-10286. [PMID: 36229041 DOI: 10.1080/14767058.2022.2122796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Iron deficiency (ID) and iron deficiency anemia (IDA) in early life are associated with adverse effects. Preterm infants are at risk for developing ID(A). Considering that not every preterm infant develops ID(A) and the potential risk of iron overload, indiscriminate iron supplementation in late preterm infants is debatable. This study aimed to evaluate the effect of a locally implemented guideline regarding individualized iron supplementation on the prevalence of ID(A) at the postnatal age of 4-6 months in Dutch preterm infants born between 32 and 35 weeks of gestational age (GA). METHODS An observational study comparing the prevalence of ID(A) at the postnatal age of 4-6 months in Dutch preterm infants born between 32 and 35 weeks of GA before (i.e. PRE-guideline group) and after (i.e. POST-guideline group) implementation of the local guideline. RESULTS Out of 372 eligible preterm infants, 110 were included (i.e. 72 and 38 in the PRE- and POST-guideline group, respectively). ID- and IDA-prevalence rates at 4-6 months of age in the PRE-guideline group were 36.1% and 13.9%, respectively, and in the POST-guideline group, 21.1% and 7.9%, respectively, resulting in a significant decrease in ID-prevalence of 15% and IDA-prevalence of 6%. No indication of iron overload was found. CONCLUSION An individualized iron supplementation guideline for preterm infants born between 32 and 35 weeks GA reduces ID(A) at the postnatal age of 4-6 months without indication of iron overload.
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Affiliation(s)
- Mirjam Vreugdenhil
- Department of Pediatrics/Neonatology, Juliana Children's Hospital/Haga Teaching Hospital, The Hague, The Netherlands
| | - Carlijn Bergmans
- Department of Pediatrics/Neonatology, Juliana Children's Hospital/Haga Teaching Hospital, The Hague, The Netherlands.,Department of Pediatrics/Neonatology, Amsterdam University Medical Centers, University of Amsterdam, Vrije Universiteit, Emma Children's Hospital, Amsterdam, The Netherlands
| | - Willemijn J M van Heel
- Department of Pediatrics/Neonatology, Juliana Children's Hospital/Haga Teaching Hospital, The Hague, The Netherlands
| | - Lyanne W W Rövekamp-Abels
- Department of Pediatrics/Neonatology, Juliana Children's Hospital/Haga Teaching Hospital, The Hague, The Netherlands
| | - Leo Wewerinke
- Department of Pediatrics/Neonatology, Juliana Children's Hospital/Haga Teaching Hospital, The Hague, The Netherlands
| | - Rob H Lopes Cardozo
- Department of Pediatrics/Neonatology, Juliana Children's Hospital/Haga Teaching Hospital, The Hague, The Netherlands
| | - Johannes B van Goudoever
- Department of Pediatrics/Neonatology, Amsterdam University Medical Centers, University of Amsterdam, Vrije Universiteit, Emma Children's Hospital, Amsterdam, The Netherlands
| | - Frank Brus
- Department of Pediatrics/Neonatology, Juliana Children's Hospital/Haga Teaching Hospital, The Hague, The Netherlands
| | - Marjolijn D Akkermans
- Department of Pediatrics/Neonatology, Juliana Children's Hospital/Haga Teaching Hospital, The Hague, The Netherlands
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Mohammadi A, Higazy R, Gauda EB. PGC-1α activity and mitochondrial dysfunction in preterm infants. Front Physiol 2022; 13:997619. [PMID: 36225305 PMCID: PMC9548560 DOI: 10.3389/fphys.2022.997619] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/09/2022] [Indexed: 11/26/2022] Open
Abstract
Extremely low gestational age neonates (ELGANs) are born in a relatively hyperoxic environment with weak antioxidant defenses, placing them at high risk for mitochondrial dysfunction affecting multiple organ systems including the nervous, respiratory, ocular, and gastrointestinal systems. The brain and lungs are highly affected by mitochondrial dysfunction and dysregulation in the neonate, causing white matter injury (WMI) and bronchopulmonary dysplasia (BPD), respectively. Adequate mitochondrial function is important in providing sufficient energy for organ development as it relates to alveolarization and axonal myelination and decreasing oxidative stress via reactive oxygen species (ROS) and reactive nitrogen species (RNS) detoxification. Peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) is a master regulator of mitochondrial biogenesis and function. Since mitochondrial dysfunction is at the root of WMI and BPD pathobiology, exploring therapies that can regulate PGC-1α activity may be beneficial. This review article describes several promising therapeutic agents that can mitigate mitochondrial dysfunction through direct and indirect activation and upregulation of the PGC-1α pathway. Metformin, resveratrol, omega 3 fatty acids, montelukast, L-citrulline, and adiponectin are promising candidates that require further pre-clinical and clinical studies to understand their efficacy in decreasing the burden of disease from WMI and BPD in preterm infants.
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Affiliation(s)
- Atefeh Mohammadi
- The Hospital for Sick Children, Division of Neonatology, Department of Pediatrics and Translational Medicine Program, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Randa Higazy
- The Hospital for Sick Children, Division of Neonatology, Department of Pediatrics and Translational Medicine Program, Toronto, ON, Canada
| | - Estelle B. Gauda
- The Hospital for Sick Children, Division of Neonatology, Department of Pediatrics and Translational Medicine Program, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- *Correspondence: Estelle B. Gauda,
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Alva R, Mirza M, Baiton A, Lazuran L, Samokysh L, Bobinski A, Cowan C, Jaimon A, Obioru D, Al Makhoul T, Stuart JA. Oxygen toxicity: cellular mechanisms in normobaric hyperoxia. Cell Biol Toxicol 2022; 39:111-143. [PMID: 36112262 PMCID: PMC9483325 DOI: 10.1007/s10565-022-09773-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 09/07/2022] [Indexed: 12/15/2022]
Abstract
In clinical settings, oxygen therapy is administered to preterm neonates and to adults with acute and chronic conditions such as COVID-19, pulmonary fibrosis, sepsis, cardiac arrest, carbon monoxide poisoning, and acute heart failure. In non-clinical settings, divers and astronauts may also receive supplemental oxygen. In addition, under current standard cell culture practices, cells are maintained in atmospheric oxygen, which is several times higher than what most cells experience in vivo. In all the above scenarios, the elevated oxygen levels (hyperoxia) can lead to increased production of reactive oxygen species from mitochondria, NADPH oxidases, and other sources. This can cause cell dysfunction or death. Acute hyperoxia injury impairs various cellular functions, manifesting ultimately as physiological deficits. Chronic hyperoxia, particularly in the neonate, can disrupt development, leading to permanent deficiencies. In this review, we discuss the cellular activities and pathways affected by hyperoxia, as well as strategies that have been developed to ameliorate injury.
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Affiliation(s)
- Ricardo Alva
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Maha Mirza
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Adam Baiton
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Lucas Lazuran
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Lyuda Samokysh
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Ava Bobinski
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Cale Cowan
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Alvin Jaimon
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Dede Obioru
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Tala Al Makhoul
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Jeffrey A Stuart
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada.
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Heydarian M, Schulz C, Stoeger T, Hilgendorff A. Association of immune cell recruitment and BPD development. Mol Cell Pediatr 2022; 9:16. [PMID: 35917002 PMCID: PMC9346035 DOI: 10.1186/s40348-022-00148-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/15/2022] [Indexed: 11/10/2022] Open
Abstract
In the neonatal lung, exposure to both prenatal and early postnatal risk factors converge into the development of injury and ultimately chronic disease, also known as bronchopulmonary dysplasia (BPD). The focus of many studies has been the characteristic inflammatory responses provoked by these exposures. Here, we review the relationship between immaturity and prenatal conditions, as well as postnatal exposure to mechanical ventilation and oxygen toxicity, with the imbalance of pro- and anti-inflammatory regulatory networks. In these conditions, cytokine release, protease activity, and sustained presence of innate immune cells in the lung result in pathologic processes contributing to lung injury. We highlight the recruitment and function of myeloid innate immune cells, in particular, neutrophils and monocyte/macrophages in the BPD lung in human patients and animal models. We also discuss dissimilarities between the infant and adult immune system as a basis for the development of novel therapeutic strategies.
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Affiliation(s)
- Motaharehsadat Heydarian
- Institute for Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Center Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Christian Schulz
- German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany.,Department of Medicine I, University Hospital, Ludwig Maximilian University, Munich, Germany
| | - Tobias Stoeger
- Institute for Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Center Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Anne Hilgendorff
- Institute for Lung Health and Immunity and Comprehensive Pneumology Center with the CPC-M bioArchive, Helmholtz Center Munich, Member of the German Center for Lung Research (DZL), Munich, Germany. .,Center for Comprehensive Developmental Care (CDeCLMU) at the interdisciplinary Social Pediatric Center, (iSPZ), University Hospital Ludwig-Maximilian University, Munich, Germany.
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40
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Yang X, Jiang S, Deng X, Luo Z, Chen A, Yu R. Effects of Antioxidants in Human Milk on Bronchopulmonary Dysplasia Prevention and Treatment: A Review. Front Nutr 2022; 9:924036. [PMID: 35923207 PMCID: PMC9340220 DOI: 10.3389/fnut.2022.924036] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/21/2022] [Indexed: 12/20/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a severe chronic lung illness that affects neonates, particularly premature infants. It has far-reaching consequences for infant health and their families due to intractable short- and long-term repercussions. Premature infant survival and long-term quality of life are severely harmed by BPD, which is characterized by alveolarization arrest and hypoplasia of pulmonary microvascular cells. BPD can be caused by various factors, with oxidative stress (OS) being the most common. Premature infants frequently require breathing support, which results in a hyperoxic environment in the developing lung and obstructs lung growth. OS can damage the lungs of infants by inducing cell death, inhibiting alveolarization, inducing inflammation, and impairing pulmonary angiogenesis. Therefore, antioxidant therapy for BPD relieves OS and lung injury in preterm newborns. Many antioxidants have been found in human milk, including superoxide dismutase, glutathione peroxidase, glutathione, vitamins, melatonin, short-chain fatty acids, and phytochemicals. Human milk oligosaccharides, milk fat globule membrane, and lactoferrin, all unique to human milk, also have antioxidant properties. Hence, human milk may help prevent OS injury and improve BPD prognosis in premature infants. In this review, we explored the role of OS in the pathophysiology of BPD and related signaling pathways. Furthermore, we examined antioxidants in human milk and how they could play a role in BPD to understand whether human milk could prevent and treat BPD.
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Affiliation(s)
- Xianpeng Yang
- Department of Neonatology, Wuxi Maternity and Child Health Care Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Shanyu Jiang
- Department of Neonatology, Wuxi Maternity and Child Health Care Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xianhui Deng
- Department of Neonatology, Wuxi Maternity and Child Health Care Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Zichen Luo
- Department of Neonatology, Wuxi Maternity and Child Health Care Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Ailing Chen
- Translational Medicine Laboratory, Research Institute for Reproductive Health and Genetic Diseases, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, China
- *Correspondence: Ailing Chen
| | - Renqiang Yu
- Department of Neonatology, Wuxi Maternity and Child Health Care Hospital, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Renqiang Yu
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41
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Lu C, Zhang L, Cui Y, Jin G, Bao Y, Shi W. Proteome and transcriptome explore the mechanism of Salvia miltiorrhiza polysaccharides to relieve florfenicol-induced kidney injury in broilers. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:45872-45884. [PMID: 35150422 DOI: 10.1007/s11356-022-19114-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
This experiment explored the mechanism of Salvia miltiorrhiza polysaccharides (SMPs) on florfenicol (FFC)-induced kidney injury in broilers. Ninety healthy 1-day-old Arbor Acres broilers were randomly divided into 3 groups with 6 replicates in each group and 5 chickens in each replicate. The three groups included control group, model group (0.15 g/L FFC), and SMPs group (0.15 g/L FFC + 5.00 g/L SMPs). After 5 days of experimental period, blood was collected, and kidney tissues were extracted. Renal injury was evaluated by serum biochemical indicators and pathological sections. Renal oxidative stress indexes were detected; transcriptomics and proteomics were used to comprehensively analyze the effects of SMPs on broiler kidney injury. The results showed that the model group inhibited average day gain (P < 0.01) and significantly adjusted blood urea nitrogen (BUN), uric acid (UA), and creatinine (Cr) (P < 0.01 or P < 0.05). The histological observation of the kidneys in the model group showed abnormal morphology, and the oxidative stress parameters showed that FFC induced oxidative stress in the kidneys. Comprehensive transcriptome proteomic analysis data showed phosphoribose pyrophosphate synthase 2 (PRPS2), cytochrome 2AC1 (CYP2AC1), cytochrome 2D6 (CYP2D6), glutathione transferase (GST), and sulfotransferase 1B (SULT1B) expression levels changed. It is worth noting that our data showed that supplementation of 5.00 g/L SMPs in drinking water reversed the changes in BUN, Cr, and daily weight gain (P < 0.05) and relieved the abnormal kidney morphology caused by FFC. After SMPs processing, it improved the detoxification process of drug-metabolizing enzymes and improved the oxidative stress state induced by FFC. Therefore, SMPs reduced the nephrotoxicity caused by FFC by promoting drug-metabolizing enzymes and alleviating oxidative stress in the kidneys.
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Affiliation(s)
- Chunyu Lu
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding, 071001, China
| | - Lu Zhang
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding, 071001, China
| | - Yuqing Cui
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding, 071001, China
| | - Guozhong Jin
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding, 071001, China
| | - Yongzhan Bao
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding, 071001, China
- Hebei Veterinary Biotechnology Innovation Center, Baoding, 071000, China
| | - Wanyu Shi
- College of Traditional Chinese Veterinary Medicine, Agricultural University of Hebei, Baoding, 071001, China
- Hebei Veterinary Biotechnology Innovation Center, Baoding, 071000, China
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42
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Yuan Y, Yang Y, Lei X, Dong W. Caffeine and bronchopulmonary dysplasia: Clinical benefits and the mechanisms involved. Pediatr Pulmonol 2022; 57:1392-1400. [PMID: 35318830 DOI: 10.1002/ppul.25898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/05/2022] [Accepted: 03/16/2022] [Indexed: 11/06/2022]
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic respiratory disease that occurs during the neonatal period and is commonly associated with prematurity. This condition results in a severe economic burden on society and the families involved. Caffeine is used not only for the treatment of apnea in prematurity, but also for the prevention of BPD. There are multiple clinical benefits of caffeine treatment, including improved extubation success, a reduced duration of mechanical ventilation, improved lung function, and a reduction of patent ductus arteriosus requiring treatment. These clinical benefits of caffeine for the treatment of BPD are supported by both clinical trials and evidence from animal models. However, the mechanism by which caffeine protects against BPD remains unclear. Here, we review the clinical value of caffeine in the prevention of BPD and its potential mechanisms of action, including anti-inflammatory, antioxidant, antifibrotic, and antiapoptotic properties, the regulation of angiogenesis, and diuretic effects. Our aim is to provide a new theoretical basis for the clinical treatment of BPD.
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Affiliation(s)
- Yuan Yuan
- Department of Pediatrics, Division of Neonatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Clinical Research Center for Birth Defects, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yang Yang
- Department of Pediatrics, Division of Neonatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Clinical Research Center for Birth Defects, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Xiaoping Lei
- Department of Pediatrics, Division of Neonatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Clinical Research Center for Birth Defects, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Wenbin Dong
- Department of Pediatrics, Division of Neonatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Department of Perinatology, The Affiliated Hospital of Southwest Medical University, Luzhou, China.,Sichuan Clinical Research Center for Birth Defects, The Affiliated Hospital of Southwest Medical University, Luzhou, China
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Kraus AC, De Miguel C. Hyperoxia and Acute Kidney Injury: A Tale of Oxygen and the Kidney. Semin Nephrol 2022; 42:151282. [PMID: 36404211 PMCID: PMC9825666 DOI: 10.1016/j.semnephrol.2022.10.008] [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] [Indexed: 11/19/2022]
Abstract
Although oxygen supplementation is beneficial to support life in the clinic, excessive oxygen therapy also has been linked to damage to organs such as the lung or the eye. However, there is a lack of understanding of whether high oxygen therapy directly affects the kidney, leading to acute kidney injury, and what molecular mechanisms may be involved in this process. In this review, we revise our current understanding of the mechanisms by which hyperoxia leads to organ damage and highlight possible areas of investigation for the scientific community interested in novel mechanisms of kidney disease. Overall, we found a significant need for both animal and clinical studies evaluating the role of hyperoxia in inducing kidney damage. Thus, we urge the research community to further investigate oxygen therapy and its impact on kidney health with the goal of optimizing oxygen therapy guidelines and improving patient care.
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Affiliation(s)
- Abigayle C Kraus
- Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - Carmen De Miguel
- Section of Cardio-Renal Physiology and Medicine, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL.
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Simvastatin Inhibits NLRP3 Inflammasome Activation and Ameliorates Lung Injury in Hyperoxia-Induced Bronchopulmonary Dysplasia via the KLF2-Mediated Mechanism. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:8336070. [PMID: 35509841 PMCID: PMC9060986 DOI: 10.1155/2022/8336070] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 04/04/2022] [Indexed: 12/17/2022]
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic lung disease commonly found in premature infants. Excessive inflammation and oxidative stress contribute to BPD occurrence and development. Simvastatin, as an inhibitor of HMG-CoA reductase, has been reported to have antioxidative and anti-inflammatory effects. However, its effect and possible mechanisms in hyperoxia-induced lung injury are rarely reported. In this study, in vivo and in vitro experiments were conducted to investigate whether simvastatin could ameliorate hyperoxia-induced lung injury and explore its potential mechanism. For the in vivo study, simvastatin could improve alveolar development after hyperoxic lung injury and reduce hyperoxic stress and inflammation. The in vitro study revealed that simvastatin can reduce inflammation in A549 cells after high-oxygen exposure. Simvastatin suppressed NLRP3 inflammasome activation and played anti-inflammatory and antioxidant roles by increasing KLF2 (Krüppel-like factor 2) expression. In vitro experiments also revealed that these effects of simvastatin were partially reversed by KLF2 shRNA, indicating that KLF2 was involved in simvastatin effects. In summary, our findings indicate that simvastatin could downregulate NLRP3 inflammasome activation and attenuate lung injury in hyperoxia-induced bronchopulmonary dysplasia via KLF2-mediated mechanism.
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Thomas JM, Sudhadevi T, Basa P, Ha AW, Natarajan V, Harijith A. The Role of Sphingolipid Signaling in Oxidative Lung Injury and Pathogenesis of Bronchopulmonary Dysplasia. Int J Mol Sci 2022; 23:ijms23031254. [PMID: 35163176 PMCID: PMC8835774 DOI: 10.3390/ijms23031254] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 02/07/2023] Open
Abstract
Premature infants are born with developing lungs burdened by surfactant deficiency and a dearth of antioxidant defense systems. Survival rate of such infants has significantly improved due to advances in care involving mechanical ventilation and oxygen supplementation. However, a significant subset of such survivors develops the chronic lung disease, Bronchopulmonary dysplasia (BPD), characterized by enlarged, simplified alveoli and deformed airways. Among a host of factors contributing to the pathogenesis is oxidative damage induced by exposure of the developing lungs to hyperoxia. Recent data indicate that hyperoxia induces aberrant sphingolipid signaling, leading to mitochondrial dysfunction and abnormal reactive oxygen species (ROS) formation (ROS). The role of sphingolipids such as ceramides and sphingosine 1-phosphate (S1P), in the development of BPD emerged in the last decade. Both ceramide and S1P are elevated in tracheal aspirates of premature infants of <32 weeks gestational age developing BPD. This was faithfully reflected in the murine models of hyperoxia and BPD, where there is an increased expression of sphingolipid metabolites both in lung tissue and bronchoalveolar lavage. Treatment of neonatal pups with a sphingosine kinase1 specific inhibitor, PF543, resulted in protection against BPD as neonates, accompanied by improved lung function and reduced airway remodeling as adults. This was accompanied by reduced mitochondrial ROS formation. S1P receptor1 induced by hyperoxia also aggravates BPD, revealing another potential druggable target in this pathway for BPD. In this review we aim to provide a detailed description on the role played by sphingolipid signaling in hyperoxia induced lung injury and BPD.
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Affiliation(s)
- Jaya M. Thomas
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; (J.M.T.); (T.S.); (P.B.); (A.W.H.)
| | - Tara Sudhadevi
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; (J.M.T.); (T.S.); (P.B.); (A.W.H.)
| | - Prathima Basa
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; (J.M.T.); (T.S.); (P.B.); (A.W.H.)
| | - Alison W. Ha
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; (J.M.T.); (T.S.); (P.B.); (A.W.H.)
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Viswanathan Natarajan
- Department of Pharmacology and Regenerative Medicine, University of Illinois at Chicago, Chicago, IL 60607, USA;
- Department of Medicine, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Anantha Harijith
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; (J.M.T.); (T.S.); (P.B.); (A.W.H.)
- Correspondence: ; Tel.: +1-(216)-286-7038
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Qing C, Ziyun L, Xuefei Y, Xinyi Z, Xindong X, Jianhua F. Protective Effects of 18β-Glycyrrhetinic Acid on Neonatal Rats with Hyperoxia Exposure. Inflammation 2022; 45:1224-1238. [PMID: 34989920 DOI: 10.1007/s10753-021-01616-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/13/2021] [Accepted: 12/16/2021] [Indexed: 11/05/2022]
Abstract
Bronchopulmonary dysplasia (BPD) is a common devastating pulmonary complication in preterm infants. Supplemental oxygen is a lifesaving therapeutic measure used for premature infants with pulmonary insufficiency. However, oxygen toxicity is a significant trigger for BPD. Oxidative stress disrupts lung development, accompanied by increased pro-inflammatory cytokines and chemokines expression and immune cells infiltration in lung tissue. Licorice, a typical traditional herbal medicine, is commonly used in the medicine and food industries. 18β-Glycyrrhetinic acid (18β-GA), a primary active ingredient of licorice, has powerful anti-oxidative and anti-inflammatory effects. This study aimed to determine whether 18β-GA has a protective effect on neonatal rats with hyperoxia exposure. Newborn Sprague-Dawley rats were kept in either 21% (normoxia) or 80% O2 (hyperoxia) continuously from postnatal day (PN) 1 to 14. 18β-GA was injected intragastrically at 50 or 100 mg/kg body weight once a day from PN 1 to 14. We examined the body weight and alveolar development and measured ROS level and the markers of pulmonary inflammation. Mature-IL-1β and NF-κB pathway proteins, and the NLRP3 inflammasome, were assessed; concurrently, caspase-1 activity was measured. Our results indicated that hyperoxia resulted in alveolar simplification and decreased bodyweight of neonatal rats. Hyperoxia increased ROS level and pulmonary inflammation and activated NF-κB and the NLRP3 inflammasome. 18β-GA treatment inhibited the activation of NF-κB and the NLRP3 inflammasome, decreased ROS level and pulmonary inflammation, improved alveolar development, and increased the bodyweight of neonatal rats with hyperoxia exposure. Our study demonstrates that 18β-GA has a protective effect on neonatal rats with hyperoxia exposure.
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Affiliation(s)
- Cai Qing
- Department of Pediatrics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, China
| | - Liu Ziyun
- Department of Pediatrics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, China
| | - Yu Xuefei
- Department of Pediatrics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, China
| | - Zhao Xinyi
- Department of Pediatrics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, China
| | - Xue Xindong
- Department of Pediatrics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, China
| | - Fu Jianhua
- Department of Pediatrics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Shenyang, Liaoning, 110004, China.
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Ozdemir R, Gokce IK, Tekin S, Cetin Taslidere A, Turgut H, Tanbek K, Gul CC, Deveci MF, Aslan M. The protective effects of apocynin in hyperoxic lung injury in neonatal rats. Pediatr Pulmonol 2022; 57:109-121. [PMID: 34581514 DOI: 10.1002/ppul.25707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 09/24/2021] [Accepted: 09/25/2021] [Indexed: 11/08/2022]
Abstract
AIM Inflammation and oxidate stress are significant factors in the pathogenesis of bronchopulmonary dysplasia (BPD). The aim of this study is to investigate the efficacy of apocynin (APO), an anti-inflammatory, antioxidant, and antiapoptotic drug, in the prophylaxis of neonatal hyperoxic lung injury. METHOD This experimental study included 40 neonatal rats divided into the control, APO, BPD, and BPD + APO groups. The control and APO groups were kept in a normal room environment, while the BPD and BPD + APO groups were kept in a hyperoxic environment. The rats in the APO and BPD + APO groups were administered intraperitoneal APO, while the control and BPD rats were administered ordinary saline. At the end of the trial, lung tissue was evaluated with respect to the degree of histopathological injury, apoptosis, oxidant and antioxidant capacity, and severity of inflammation. RESULT The BPD and BPD + APO groups exhibited higher mean histopathological injury and alveolar macrophage scores compared to the control and APO groups. Both scores were lower in the BPD + APO group in comparison to the BPD group. The BPD + APO group had a significantly lower average of TUNEL positive cells than the BPD group. The lung tissue examination indicated significantly higher levels of mean malondialdehyde (MDA), total oxidant status (TOS), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β) in the BPD group compared to the control and APO groups. While the TNF-α and IL-1β levels of the BPD + APO group were similar to that of the control group, the MDA and TOS levels were higher compared to the controls and lower compared to the BPD group. The BPD group demonstrated significantly lower levels/activities of mean total antioxidant status, glutathione reductase, superoxide dismutase, glutathione peroxidase in comparison to the control and APO groups. While the mean antioxidant enzyme activity of the BPD + APO group was lower than the control group, it was significantly higher compared to the BPD group. CONCLUSION This is the first study in the literature to reveal through an experimental neonatal hyperoxic lung injury that APO, an anti-inflammatory, antioxidant, and antiapoptotic drug, exhibits protective properties against the development of BPD.
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Affiliation(s)
- Ramazan Ozdemir
- Division of Neonatology, Department of Pediatrics, Inonu University School of Medicine, Malatya, Turkey
| | - Ismail Kursat Gokce
- Division of Neonatology, Department of Pediatrics, Inonu University School of Medicine, Malatya, Turkey
| | - Suat Tekin
- Department of Physiology, Inonu University School of Medicine, Malatya, Turkey
| | - Asli Cetin Taslidere
- Department of Histology and Embryology, Inonu University School of Medicine, Malatya, Turkey
| | - Hatice Turgut
- Division of Neonatology, Department of Pediatrics, Inonu University School of Medicine, Malatya, Turkey
| | - Kevser Tanbek
- Department of Physiology, Inonu University School of Medicine, Malatya, Turkey
| | - Cemile Ceren Gul
- Department of Histology and Embryology, Inonu University School of Medicine, Malatya, Turkey
| | - Mehmet Fatih Deveci
- Division of Neonatology, Department of Pediatrics, Inonu University School of Medicine, Malatya, Turkey
| | - Mehmet Aslan
- Department of Pediatrics, Inonu University School of Medicine, Malatya, Turkey
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Yu X, Liu Z, Pan Y, Cui X, Zhao X, Li D, Xue X, Fu J. Co-expression network analysis for identification of novel biomarkers of bronchopulmonary dysplasia model. Front Pediatr 2022; 10:946747. [PMID: 36440350 PMCID: PMC9696732 DOI: 10.3389/fped.2022.946747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 10/11/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) is the most common neonatal chronic lung disease. However, its exact molecular pathogenesis is not understood. We aimed to identify relevant gene modules that may play crucial roles in the occurrence and development of BPD by weighted gene co-expression network analysis (WGCNA). METHODS We used RNA-Seq data of BPD and healthy control rats from our previous studies, wherein data from 30 samples was collected at days 1, 3, 7, 10, and 14. Data for preprocessing analysis included 17,613 differentially expressed genes (DEGs) with false discovery rate <0.05. RESULTS We grouped the highly correlated genes into 13 modules, and constructed a network of mRNA gene associations, including the 150 most associated mRNA genes in each module. Lgals8, Srpra, Prtfdc1, and Thap11 were identified as the key hub genes. Enrichment analyses revealed Golgi vesicle transport, coated vesicle, actin-dependent ATPase activity and endoplasmic reticulum pathways associated with these genes involved in the pathological process of BPD in module. CONCLUSIONS This is a study to analyze data obtained from BPD animal model at different time-points using WGCNA, to elucidate BPD-related susceptibility modules and disease-related genes.
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Affiliation(s)
- Xuefei Yu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ziyun Liu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yuqing Pan
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xuewei Cui
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xinyi Zhao
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Danni Li
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xindong Xue
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jianhua Fu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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Jin R, Gao Q, Yin C, Zou M, Lu K, Liu W, Zhu Y, Zhang M, Cheng R. The CD146-HIF-1α axis regulates epithelial cell migration and alveolar maturation in a mouse model of bronchopulmonary dysplasia. J Transl Med 2022; 102:794-804. [PMID: 35306530 PMCID: PMC9309096 DOI: 10.1038/s41374-022-00773-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 02/12/2022] [Accepted: 02/13/2022] [Indexed: 11/09/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is the most common challenge in preterm neonates. Retardation of alveolar development characterizes the pulmonary pathology in BPD. In the present study, we explored the roles of the CD146-HIF-1α axis in BPD. We demonstrated that the levels of reactive oxygen species (ROS) and soluble CD146 (sCD1146) were increased in the peripheral blood of preterm neonates with BPD. In alveolar epithelial cells, hyperoxia promoted the expression of HIF-1α and CD146, which reinforced each other. In a mouse model of BPD, by exposing pups to 65% hyperoxia, HIF-1α and CD146 were increased in the pulmonary tissues. Mechanistically, CD146 hindered the migration of alveolar epithelial cells; in contrast, movement was significantly enhanced in CD146-knockout alveolar epithelial cells. As expected, CD146-knockout ameliorated alveolarization and improved BPD disease severity. Taken together, our findings imply that the CD146-HIF-1α axis contributes to alveolarization and that CD146 may be a novel candidate in BPD therapy.
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Affiliation(s)
- Rui Jin
- grid.452511.6Department of Neonatal Medical Center, Children’s Hospital of Nanjing Medical University, Nanjing, China ,Department of Neonatal Medical Center, Lianyungang Maternal and Child Health Hospital, Lianyungang, China
| | - Qianqian Gao
- grid.452511.6Department of Neonatal Medical Center, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Chunyu Yin
- grid.452511.6Department of Neonatal Medical Center, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Mengjia Zou
- grid.452511.6Department of Neonatal Medical Center, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Keyu Lu
- grid.452511.6Department of Neonatal Medical Center, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Wei Liu
- grid.89957.3a0000 0000 9255 8984Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984NHC Key Laboratory of Antibody Technique, Department of Immunology, Nanjing Medical University, Nanjing, China
| | - Yuting Zhu
- Department of Neonatology, The Affiliated Wuxi Children’s Hospital of Nanjing Medical University, Wuxi, China
| | - Mingshun Zhang
- Jiangsu Province Engineering Research Center of Antibody Drug, Nanjing Medical University, Nanjing, China. .,NHC Key Laboratory of Antibody Technique, Department of Immunology, Nanjing Medical University, Nanjing, China.
| | - Rui Cheng
- Department of Neonatal Medical Center, Children's Hospital of Nanjing Medical University, Nanjing, China.
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Xi Y, Ju R, Wang Y. Mesenchymal Stem Cell-Derived Extracellular Vesicles for the Treatment of Bronchopulmonary Dysplasia. Front Pediatr 2022; 10:852034. [PMID: 35444971 PMCID: PMC9013803 DOI: 10.3389/fped.2022.852034] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 02/25/2022] [Indexed: 11/13/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is the most common chronic respiratory disease in premature infants. However, there is a lack of effective treatment. Mesenchymal stromal cells derived extracellular vesicles (MSC-EVs), as nano- and micron-sized heterogeneous vesicles secreted by MSCs, are the main medium for information exchange between MSCs and injured tissue and organ, playing an important role in repairing tissue and organ injury. EVs include exosomes, microvesicles and so on. They are rich with various proteins, nucleic acids, and lipids. Now, EVs are considered as a new way of cell-to-cell communication. EVs mainly induce regeneration and therapeutic effects in different tissues and organs through the biomolecules they carry. The surface membrane protein or loaded protein and nucleic acid molecules carried by EVs, can activate the signal transduction of target cells and regulate the biological behavior of target cells after binding and cell internalization. MSC-EVs can promote the development of pulmonary vessels and alveoli and reduce pulmonary hypertension (PH) and inflammation and play an important role in the repair of lung injury in BPD. The regeneration potential of MSC-EVs is mainly due to the regulation of cell proliferation, survival, migration, differentiation, angiogenesis, immunoregulation, anti-inflammatory, mitochondrial activity and oxidative stress. As a new type of cell-free therapy, MSC-EVs have non-immunogenic, and are small in size and go deep into most tissues. What's more, it has good biological stability and can be modified and loaded with drugs of interest. Obviously, MSC-EVs have a good application prospect in the treatment of lung injury and BPD. However, there are still many challenges to make MSC-EVs really enter clinical application.
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Affiliation(s)
- Yufeng Xi
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Rong Ju
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yujia Wang
- Department of Neonatology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.,Department of Dermatology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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