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Rallis D, Baltogianni M, Kapetaniou K, Kosmeri C, Giapros V. Bioinformatics in Neonatal/Pediatric Medicine-A Literature Review. J Pers Med 2024; 14:767. [PMID: 39064021 PMCID: PMC11277633 DOI: 10.3390/jpm14070767] [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: 06/05/2024] [Revised: 07/14/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
Bioinformatics is a scientific field that uses computer technology to gather, store, analyze, and share biological data and information. DNA sequences of genes or entire genomes, protein amino acid sequences, nucleic acid, and protein-nucleic acid complex structures are examples of traditional bioinformatics data. Moreover, proteomics, the distribution of proteins in cells, interactomics, the patterns of interactions between proteins and nucleic acids, and metabolomics, the types and patterns of small-molecule transformations by the biochemical pathways in cells, are further data streams. Currently, the objectives of bioinformatics are integrative, focusing on how various data combinations might be utilized to comprehend organisms and diseases. Bioinformatic techniques have become popular as novel instruments for examining the fundamental mechanisms behind neonatal diseases. In the first few weeks of newborn life, these methods can be utilized in conjunction with clinical data to identify the most vulnerable neonates and to gain a better understanding of certain mortalities, including respiratory distress, bronchopulmonary dysplasia, sepsis, or inborn errors of metabolism. In the current study, we performed a literature review to summarize the current application of bioinformatics in neonatal medicine. Our aim was to provide evidence that could supply novel insights into the underlying mechanism of neonatal pathophysiology and could be used as an early diagnostic tool in neonatal care.
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Affiliation(s)
- Dimitrios Rallis
- Neonatal Intensive Care Unit, School of Medicine, University of Ioannina, 45110 Ioannina, Greece; (D.R.); (M.B.)
| | - Maria Baltogianni
- Neonatal Intensive Care Unit, School of Medicine, University of Ioannina, 45110 Ioannina, Greece; (D.R.); (M.B.)
| | - Konstantina Kapetaniou
- Department of Pediatrics, School of Medicine, University of Ioannina, 45110 Ioannina, Greece; (K.K.); (C.K.)
| | - Chrysoula Kosmeri
- Department of Pediatrics, School of Medicine, University of Ioannina, 45110 Ioannina, Greece; (K.K.); (C.K.)
| | - Vasileios Giapros
- Neonatal Intensive Care Unit, School of Medicine, University of Ioannina, 45110 Ioannina, Greece; (D.R.); (M.B.)
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Yang M, Chen Y, Huang X, Shen F, Meng Y. Lysine demethylase KDM3A alleviates hyperoxia-induced bronchopulmonary dysplasia in mice by promoting ETS1 expression. Exp Cell Res 2024; 435:113945. [PMID: 38286256 DOI: 10.1016/j.yexcr.2024.113945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 01/15/2024] [Accepted: 01/21/2024] [Indexed: 01/31/2024]
Abstract
Bronchopulmonary dysplasia (BPD) is the most common chronic lung disease among neonates, with increasing morbidity and mortality. This study aims to investigate the effect and mechanism of lysine demethylase 3A (KDM3A) on hyperoxia-induced BPD. Hyperoxia-induced BPD mouse and alveolar epithelial cell models were constructed. The effects of hyperoxia on lung development were evaluated by histological and morphological analysis. The levels of KDM3A, E26 transformation specific-1 (ETS1), H3 lysine 9 dimethylation (H3K9me2), and endoplasmic reticulum (ER) stress-related indexes were quantified by RT-qPCR, Western blot, and IF staining. Cell apoptosis was assessed by flow cytometry and TUNEL staining. Transfection of oe-ETS1, oe-KDM3A, and sh-ETS1 was applied in hyperoxia-induced alveolar epithelial cells to explore the mechanism of the KDM3A/ETS1 axis in hyperoxia-induced apoptosis. KDM3A inhibitor IOX1 was applied to validate the in vivo effect of KDM3A in hyperoxia-induced BPD mice. The results displayed that hyperoxia-induced BPD mice showed reduced body weight, severe destruction of alveolar structure, decreased radial alveolar count (RAC), and increased mean linear intercept (MLI) and mean alveolar diameter (MAD). Further, hyperoxia induction down-regulated ETS1 expression, raised ER stress levels, and increased apoptosis rate in BPD mice and alveolar epithelial cells. However, transfection of oe-ETS1 improved the above changes in hyperoxia-induced alveolar epithelial cells. Moreover, transfection of oe-KDM3A up-regulated ETS1 expression, down-regulated H3K9me2 expression, inhibited ER stress, and reduced apoptosis rate in hyperoxia-induced alveolar epithelial cells. In addition, transfection of sh-ETS1 reversed the inhibitory effect of KDM3A on hyperoxia-induced apoptosis by regulating ER stress. In vivo experiments, KDM3A inhibitor IOX1 intervention further aggravated BPD in newborn mice. In a word, KDM3A alleviated hyperoxia-induced BPD in mice by promoting ETS1 expression.
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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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Marcelino M, Cai CL, Wadowski S, Aranda JV, Beharry KD. Biomarkers of lung alveolarization and microvascular maturation in response to intermittent hypoxia and/or early antioxidant/fish oil supplementation in neonatal rats. Pediatr Pulmonol 2023; 58:2352-2363. [PMID: 37265429 PMCID: PMC10463793 DOI: 10.1002/ppul.26495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 04/11/2023] [Accepted: 05/14/2023] [Indexed: 06/03/2023]
Abstract
OBJECTIVE Extremely preterm infants experience frequent intermittent hypoxia (IH) episodes during oxygen therapy which causes significant damage to the lungs and curtails important signaling pathways that regulate normal lung alveolarization and microvascular maturation. We tested the hypothesis that early supplementation with fish oil and/or antioxidants in rats exposed to neonatal IH improves expression of lung biomarkers of alveolarization and microvascular maturation, and reduces IH-induced lung injury. STUDY DESIGN/METHODS From birth (P0) to P14, rat pups were exposed to room air (RA) or neonatal IH during which they received daily oral supplementation with either: (1) olive oil (OO) (control); (2) Coenzyme Q10 (CoQ10) in OO; (3) fish oil; (4) glutathione nanoparticles (nGSH); or (5) fish oil +CoQ10. At P14 pups were placed in RA until P21 with no further treatment. RA controls were similarly treated. Lung growth and alveolarization, histopathology, apoptosis, oxidative stress and biomarkers of alveolarization and microvascular maturation were determined. RESULTS Neonatal IH was associated with reduced lung weights and severe histopathological outcomes. These effects were curtailed with fish oil and nGSH. nGSH was also protective against apoptosis, while CoQ10 prevented IH-induced ROS production. Of all treatments, nGSH and CoQ10 + fish oil-induced vascular endothelial growth factor165 and CD31 (Platelet endothelial cell adhesion molecule-1), which are associated with angiogenesis. CoQ10 + fish oil improved alveolarization in RA and IH despite evidence of hemorrhage. CONCLUSIONS The benefits of nGSH and CoQ10 + fish oil suggest an antioxidant effect which may be required to curtail IH-induced lung injury. Further clinical assessment of the effectiveness of nGSH is warranted.
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Affiliation(s)
- Matthew Marcelino
- State University of New York Downstate Health Sciences University, College of Medicine, Brooklyn, NY 11203
| | - Charles L. Cai
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Health Sciences University, Brooklyn, NY, 11203
| | - Stephen Wadowski
- Department of Pediatrics, Division of Pediatric Pulmonology, State University of New York, Downstate Health Sciences University, Brooklyn, NY, 11203
| | - Jacob V. Aranda
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Health Sciences University, Brooklyn, NY, 11203
| | - Kay D. Beharry
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Health Sciences University, Brooklyn, NY, 11203
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Cho HY, Wang X, Campbell MR, Panduri V, Coviello S, Caballero MT, Bennett BD, Kleeberger SR, Polack FP, Ofman G, Bell DA. Prospective epigenome and transcriptome analyses of cord and peripheral blood from preterm infants at risk of bronchopulmonary dysplasia. Sci Rep 2023; 13:12262. [PMID: 37507442 PMCID: PMC10382533 DOI: 10.1038/s41598-023-39313-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a prevalent chronic lung disease of prematurity with limited treatment options. To uncover biomarkers of BPD risk, this study investigated epigenetic and transcriptomic signatures of prematurity at birth and during the neonatal period at day 14 and 28. Peripheral blood DNAs from preterm infants were applied to methylation arrays and cell-type composition was estimated by deconvolution. Covariate-adjusted robust linear regression elucidated BPD- and prolonged oxygen (≥ 14 days) exposure-associated CpGs. RNAs from cord and peripheral blood were sequenced, and differentially expressed genes (DEGs) for BPD or oxygen exposure were determined. Estimated neutrophil-lymphocyte ratios in peripheral blood at day 14 in BPD infants were significantly higher than nonBPD infants, suggesting an heightened inflammatory response in developing BPD. BPD-DEGs in cord blood indicated lymphopoiesis inhibition, altered Th1/Th2 responses, DNA damage, and organ degeneration. On day 14, BPD-associated CpGs were highly enriched in neutrophil activation, infection, and CD4 + T cell quantity, and BPD-DEGs were involved in DNA damage, cellular senescence, T cell homeostasis, and hyper-cytokinesis. On day 28, BPD-associated CpGs along with BPD-DEGs were enriched for phagocytosis, neurological disorder, and nucleotide metabolism. Oxygen supplementation markedly downregulated mitochondrial biogenesis genes and altered CpGs annotated to developmental genes. Prematurity-altered DNA methylation could cause abnormal lymphopoiesis, cellular assembly and cell cycle progression to increase BPD risk. Similar pathways between epigenome and transcriptome networks suggest coordination of the two in dysregulating leukopoiesis, adaptive immunity, and innate immunity. The results provide molecular insights into biomarkers for early detection and prevention of BPD.
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Affiliation(s)
- Hye-Youn Cho
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
| | - Xuting Wang
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
| | - Michelle R Campbell
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
| | - Vijayalakshmi Panduri
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
| | | | - Mauricio T Caballero
- Fundación INFANT, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Brian D Bennett
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
| | - Steven R Kleeberger
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
| | - Fernando P Polack
- Fundación INFANT, Buenos Aires, Argentina
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Gaston Ofman
- Fundación INFANT, Buenos Aires, Argentina
- Section of Neonatal-Perinatal Medicine, Center for Pregnancy and Newborn Research, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Douglas A Bell
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, Building 101, MD C3-03, 111 TW Alexander Dr., Research Triangle Park, NC, 27709, USA.
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He F, Wang QF, Li L, Yu C, Liu CZ, Wei WC, Chen LP, Li HY. Melatonin Protects Against Hyperoxia-Induced Apoptosis in Alveolar Epithelial type II Cells by Activating the MT2/PI3K/AKT/ETS1 Signaling Pathway. Lung 2023; 201:225-234. [PMID: 36928143 DOI: 10.1007/s00408-023-00610-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/02/2023] [Indexed: 03/18/2023]
Abstract
PURPOSE Hyperoxia-induced apoptosis in alveolar epithelial type II cells (AECIIs) plays a critical role in the development of bronchopulmonary dysplasia (BPD). Melatonin has been shown to improve BPD. However, the protective effect of melatonin on hyperoxia-induced apoptosis in AECIIs and the precise mechanisms involved remain unclear. METHODS Human alveolar epithelial type II A549 cells were treated with hyperoxia as an in vitro model to investigate the antiapoptotic mechanism of melatonin. CCK-8 assays were performed to investigate the viability of A549 cells. Hoechst 33,258 staining was carried out to quantify apoptosis in A549 cells. The protein expression levels of E26 oncogene homolog 1 (ETS1), Bcl-2, Bax, Bim, Wnt, β-catenin, AKT and phosphorylated AKT were measured by western blotting. LY294002, SC79 and the downregulation of ETS1, melatonin receptor 1 (MT1) and MT2 with specific siRNAs were used to investigate the role of the PI3K/AKT pathway, ETS1, MT1 and MT2 in hyperoxia-induced apoptosis in A549 cells. RESULTS Melatonin prevented hyperoxia-induced apoptosis in A549 cells, and the upregulation of E26 oncogene homolog 1 (ETS1) contributed to the antiapoptotic effect of melatonin. Melatonin activated the PI3K/AKT axis, which led to ETS1 upregulation and inhibited apoptosis in hyperoxia-exposed A549 cells. Furthermore, melatonin-induced activation of the PI3K/AKT axis, upregulation of ETS1 and inhibition of apoptosis were reversed by melatonin receptor 2 (MT2) siRNA in hyperoxia-exposed A549 cells. CONCLUSION Melatonin prevents hyperoxia-induced apoptosis by activating the MT2/PI3K/AKT/ETS1 axis in alveolar epithelial cells.
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Affiliation(s)
- Fan He
- Department of Neonatology, Jiangxi Provincial Children's Hospital, No. 1666, DieziHu Road, Honggutan District, Nanchang, 330038, Jiangxi, China
| | - Qiao-Fang Wang
- Department of Neonatology, Jiangxi Provincial Children's Hospital, No. 1666, DieziHu Road, Honggutan District, Nanchang, 330038, Jiangxi, China
| | - Lin Li
- Department of Neonatology, Jiangxi Provincial Children's Hospital, No. 1666, DieziHu Road, Honggutan District, Nanchang, 330038, Jiangxi, China
| | - Cong Yu
- Department of Neonatology, Jiangxi Provincial Children's Hospital, No. 1666, DieziHu Road, Honggutan District, Nanchang, 330038, Jiangxi, China
| | - Chun-Zi Liu
- Department of Neonatology, Jiangxi Provincial Children's Hospital, No. 1666, DieziHu Road, Honggutan District, Nanchang, 330038, Jiangxi, China
| | - Wen-Chao Wei
- Department of Neonatology, Jiangxi Provincial Children's Hospital, No. 1666, DieziHu Road, Honggutan District, Nanchang, 330038, Jiangxi, China
| | - Li-Ping Chen
- Department of Neonatology, Jiangxi Provincial Children's Hospital, No. 1666, DieziHu Road, Honggutan District, Nanchang, 330038, Jiangxi, China.
| | - Huan-Yu Li
- Second Department of Respiratory Disease, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, No. 152, Aiguo Road, DongHu District, Nanchang, 330006, Jiangxi, China.
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Wu PL, Ling XC, Kang EYC, Chen KJ, Wang NK, Liu L, Chen YP, Hwang YS, Lai CC, Yang SF, Wu WC. Effects of TIMP-2 Polymorphisms on Retinopathy of Prematurity Risk, Severity, Recurrence, and Treatment Response. Int J Mol Sci 2022; 23:14199. [PMID: 36430677 PMCID: PMC9694036 DOI: 10.3390/ijms232214199] [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: 08/25/2022] [Revised: 10/31/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022] Open
Abstract
Tissue inhibitors of metalloproteinases (TIMPs) play a crucial role in endogenous angiogenesis besides the regulation of matrix metalloproteinase (MMP) activity. Associations between TIMP-2 gene polymorphisms and the risk of retinopathy of prematurity (ROP) were examined. Premature infants born between 2009 and 2018 were included. Five single-nucleotide polymorphisms (SNPs) of TIMP-2 were analyzed with real-time polymerase chain reaction (PCR). Multivariate logistic regression was applied to model associations between TIMP-2 polymorphisms and ROP susceptibility and severity. The GA+AA genotype in individuals with the TIMP-2 polymorphism of rs12600817 was associated with a higher risk of ROP (odds ratio [OR]: 1.518, 95% confidence interval [CI]: 1.028-2.242) compared with their wild-type genotypes. The AA genotype (OR: 1.962, 95% CI: 1.023-3.762) and the AA+GA genotype (OR: 1.686, 95% CI: 1.030-2.762) in individuals with the rs12600817 polymorphism had higher risks of severe, treatment-requiring ROP relative to their wild-type counterparts. In patients with treatment-requiring ROP, the AG+GG genotypes in the TIMP-2 polymorphism of rs2889529 were correlated with the treatment response (p = 0.035). The TIMP-2 polymorphism of rs12600817 help in predicting ROP risks in preterm infants, while the polymorphism of rs2889529 can serve as a genetic marker in evaluating the ROP treatment response.
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Affiliation(s)
- Pei-Liang Wu
- Department of Medicine, National Taiwan University, Taipei 106, Taiwan
| | - Xiao Chun Ling
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
| | - Eugene Yu-Chuan Kang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Kuan-Jen Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Nan-Kai Wang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Laura Liu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Yen-Po Chen
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Department of Ophthalmology, Chang Gung Memorial Hospital, Tucheng, New Taipei City 236, Taiwan
| | - Yih-Shiou Hwang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Chi-Chun Lai
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
- Department of Ophthalmology, Chang Gung Memorial Hospital, Keelung 204, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Wei-Chi Wu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
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Yang M, Huang X, Shen F, Yi J, Meng Y, Chen Y. Lef1 is transcriptionally activated by Klf4 and suppresses hyperoxia-induced alveolar epithelial cell injury. Exp Lung Res 2022; 48:213-223. [PMID: 35950640 DOI: 10.1080/01902148.2022.2108945] [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: 11/04/2022]
Abstract
PURPOSE Bronchopulmonary dysplasia (BPD) is a long-term respiratory condition. More than a quarter of extremely premature newborns are harmed by BPD. At present, there are no apparent effective drugs or treatments for the condition. In this study, we aimed to investigate the functional role and mechanism of lymphoid enhancer-binding factor 1 (Lef1) in BPD in vitro. MATERIALS AND METHODS Blood samples from BPD patients and healthy volunteers were gathered, and an in vitro model of BPD was developed in alveolar epithelial cells (AECs) MLE-12 induced by hyperoxia. Then expression of krüppel-like factor 4 (KLF4/Klf4) and LEF1/Lef1 were evaluated. After Lef1 overexpressing plasmid and the vector were transfected into hyperoxia-induced MLE-12 cells, cell proliferation assays were carried out. Cell apoptosis was investigated by a flow cytometry assay, and apoptosis related proteins Bcl-2, cleaved-caspase 3 and 9 were analyzed by a western blot assay. The binding between Klf4 and Lef1 promoter predicted on the JASPAR website was verified using luciferase and ChIP assays. For further study of the mechanism of Klf4 and Lef1 in BPD, gain-of-function experiments were performed. RESULTS The mRNA levels of KLF4/Klf4 and LEF1/Lef1 were diminished in clinical BPD serum samples and hyperoxia-induced MLE-12 cells. Overexpression of Lef1 stimulated AEC proliferation and suppressed AEC apoptosis induced by hyperoxia. Mechanically, Klf4 bound to Lef1's promoter region and aids transcription. Moreover, the results of gain-of-function experiments supported that Klf4 could impede AEC damage induced by hyperoxia via stimulating Lef1. CONCLUSION Klf4 and Lef1 expression levels were declined in hyperoxia-induced AECs, and Lef1 could be transcriptionally activated by Klf4 and protect against hyperoxia-induced AEC injury in BPD. As a result, Lef1 might become a prospective therapeutic target for BPD.
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Affiliation(s)
- Min Yang
- Department of Respiratory, Hunan Children's Hospital, Changsha, China
| | | | - Fang Shen
- Research Institute of Children, Hunan Children's Hospital, Changsha, China
| | - Juanjuan Yi
- Department of Neonate, Hunan Children's Hospital, Changsha, China
| | - Yanni Meng
- Department of Respiratory, Hunan Children's Hospital, Changsha, China
| | - Yanping Chen
- Department of Respiratory, Hunan Children's Hospital, Changsha, China
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Wang X, Cho HY, Campbell MR, Panduri V, Coviello S, Caballero MT, Sambandan D, Kleeberger SR, Polack FP, Ofman G, Bell DA. Epigenome-wide association study of bronchopulmonary dysplasia in preterm infants: results from the discovery-BPD program. Clin Epigenetics 2022; 14:57. [PMID: 35484630 PMCID: PMC9052529 DOI: 10.1186/s13148-022-01272-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/06/2022] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) is a lung disease in premature infants caused by therapeutic oxygen supplemental and characterized by impaired pulmonary development which persists into later life. While advances in neonatal care have improved survival rates of premature infants, cases of BPD have been increasing with limited therapeutic options for prevention and treatment. This study was designed to explore the relationship between gestational age (GA), birth weight, and estimated blood cell-type composition in premature infants and to elucidate early epigenetic biomarkers associated with BPD. METHODS Cord blood DNA from preterm neonates that went on to develop BPD (n = 14) or not (non-BPD, n = 93) was applied to Illumina 450 K methylation arrays. Blood cell-type compositions were estimated using DNA methylation profiles. Multivariable robust regression analysis elucidated CpGs associated with BPD risk. cDNA microarray analysis of cord blood RNA identified differentially expressed genes in neonates who later developed BPD. RESULTS The development of BPD and the need for oxygen supplementation were strongly associated with GA (BPD, p < 1.0E-04; O2 supplementation, p < 1.0E-09) and birth weight (BPD, p < 1.0E-02; O2 supplementation, p < 1.0E-07). The estimated nucleated red blood cell (NRBC) percent was negatively associated with birth weight and GA, positively associated with hypomethylation of the tobacco smoke exposure biomarker cg05575921, and high-NRBC blood samples displayed a hypomethylation profile. Epigenome-wide association study (EWAS) identified 38 (Bonferroni) and 275 (false discovery rate 1%) differentially methylated CpGs associated with BPD. BPD-associated CpGs in cord blood were enriched for lung maturation and hematopoiesis pathways. Stochastic epigenetic mutation burden at birth was significantly elevated among those who developed BPD (adjusted p = 0.02). Transcriptome changes in cord blood cells reflected cell cycle, development, and pulmonary disorder events in BPD. CONCLUSIONS While results must be interpreted with caution because of the small size of this study, NRBC content strongly impacted DNA methylation profiles in preterm cord blood and EWAS analysis revealed potential insights into biological pathways involved in BPD pathogenesis.
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Affiliation(s)
- Xuting Wang
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Building 101, MD C3-03, PO Box 12233, 111 TW Alexander Dr., Research Triangle Park, NC, 27709, USA
| | - Hye-Youn Cho
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Building 101, MD C3-03, PO Box 12233, 111 TW Alexander Dr., Research Triangle Park, NC, 27709, USA
| | - Michelle R Campbell
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Building 101, MD C3-03, PO Box 12233, 111 TW Alexander Dr., Research Triangle Park, NC, 27709, USA
| | - Vijayalakshmi Panduri
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, 27709, USA
| | | | - Mauricio T Caballero
- Fundación INFANT, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Deepa Sambandan
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Building 101, MD C3-03, PO Box 12233, 111 TW Alexander Dr., Research Triangle Park, NC, 27709, USA
- The Golden LEAF Biomanufacturing Training and Education Center, North Carolina State University, Raleigh, NC, 27606, USA
| | - Steven R Kleeberger
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Building 101, MD C3-03, PO Box 12233, 111 TW Alexander Dr., Research Triangle Park, NC, 27709, USA
| | - Fernando P Polack
- Fundación INFANT, Buenos Aires, Argentina
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, 37232, USA
| | - Gaston Ofman
- Fundación INFANT, Buenos Aires, Argentina
- Section of Neonatal-Perinatal Medicine, Center for Pregnancy and Newborn Research, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Douglas A Bell
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Building 101, MD C3-03, PO Box 12233, 111 TW Alexander Dr., Research Triangle Park, NC, 27709, USA.
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Yang M, Gao XR, Meng YN, Shen F, Chen YP. ETS1 Ameliorates Hyperoxia-Induced Alveolar Epithelial Cell Injury by Regulating the TGM2-Mediated Wnt/β-Catenin Pathway. Lung 2021; 199:681-690. [PMID: 34817668 DOI: 10.1007/s00408-021-00489-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 10/24/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE Bronchopulmonary dysplasia (BPD) is a chronic lung disease that affects newborns who need oxygen therapy, and high-concentration oxygen therapy may cause neonatal morbidity and mortality in newborns. E26 oncogene homologue 1 (ETS1) and transglutaminase 2 (TGM2) have been reported to be associated with lung cell injury. However, the mechanism of ETS1 in regulating BPD is still unclear. METHODS Hyperoxia-induced A549 cells to simulate hyperoxia-induced alveolar epithelial cell injury. MTT assays and colony formation assays were performed to investigate the proliferation of A549 cells. Flow cytometry was carried out to quantify the apoptosis of A549 cells. The expression levels of ETS1 and TGM2 were quantified by qRT-PCR. The protein expression levels of ETS1, TGM2, β-catenin, c-Jun and MET were measured by western blot. Overexpression of ETS1, overexpression of TGM2, overexpression of ETS1 with downregulation of TGM2 and overexpression of TGM2 with inhibition of Wnt/β-catenin pathway were performed to investigate the role of ETS1, TGM2 and Wnt/β-catenin pathways in hyperoxia-induced alveolar epithelial cell injury. RESULTS Hyperoxia decreased the proliferation and promoted the apoptosis of cells in a time-dependent manner. Moreover, overexpression of ETS1 rescued the effect of hyperoxia on proliferation and apoptosis. In addition, overexpression of TGM2 participated in the regulation of hyperoxia-induced proliferation and apoptosis. ETS1 regulated hyperoxia-induced alveolar epithelial cell injury through the Wnt/β-catenin pathway via TGM2. CONCLUSION ETS1 ameliorates hyperoxia-induced alveolar epithelial cell injury through the TGM2-mediated Wnt/β-catenin pathway.
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Affiliation(s)
- Min Yang
- Department of Respiratory, Hunan Children's Hospital, No. 86 Ziyuan Road, Changsha, 410007, Hunan Province, China
| | - Xi-Rong Gao
- Neonate Department, Hunan Children's Hospital, Changsha, 410007, Hunan Province, China
| | - Yan-Ni Meng
- Department of Respiratory, Hunan Children's Hospital, No. 86 Ziyuan Road, Changsha, 410007, Hunan Province, China
| | - Fang Shen
- Research Institute of Children, Hunan Children's Hospital, Changsha, 410007, Hunan Province, China
| | - Yan-Ping Chen
- Department of Respiratory, Hunan Children's Hospital, No. 86 Ziyuan Road, Changsha, 410007, Hunan Province, China.
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10
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Wu Y, Zhang M, Bi X, Hao L, Liu R, Zhang H. ESR1 mediated circ_0004018 suppresses angiogenesis in hepatocellular carcinoma via recruiting FUS and stabilizing TIMP2 expression. Exp Cell Res 2021; 408:112804. [PMID: 34487732 DOI: 10.1016/j.yexcr.2021.112804] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 08/22/2021] [Accepted: 08/25/2021] [Indexed: 12/13/2022]
Abstract
Angiogenesis has been certified to account for tumor pathobiology. Circular RNAs (circRNAs) have been demonstrated to be involved in angiogenesis-related diseases, including hepatocellular carcinoma (HCC). Nevertheless, the regulatory roles of most circRNAs remain obscure. This study aims to uncover the function of hsa_circ_0004018 on angiogenesis in HCC. Firstly, quantitative real-time RT-PCR (RT-qPCR) analyzed that circ_0004018 was definitely down-regulated in HCC. Western blot analysis was conducted to detect the protein level of fused protein in sarcoma (FUS) and TIMP metallopeptidase inhibitor 2 (TIMP2). Functional assays were carried out to assess the impacts of circ_0004018 on HCC. From the experimental results, we found that overexpression of circ_0004018 significantly inhibited angiogenesis in HCC. The regulatory mechanism of circ_0004018 in HCC was determined by chromatin immunoprecipitation (ChIP), luciferase reporter assays and RNA immunoprecipitation (RIP) assay. Therefore, we proved that estrogen receptor 1 (ESR1) mediated circ_0004018 regulated TIMP2 by recruiting FUS. A series of rescue assays verified that circ_0004018 participated in angiogenesis in HCC via modulating TIMP2. In summary, this paper disclosed that ESR1 activated circ_0004018 inhibited angiogenesis in HCC via binding to FUS and stabilizing TIMP2 expression.
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Affiliation(s)
- Yanli Wu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hankou, Wuhan, 430030, Hubei, PR China
| | - Mingsheng Zhang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hankou, Wuhan, 430030, Hubei, PR China
| | - Xiaojun Bi
- Department of Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hankou, Wuhan, 430030, Hubei, PR China
| | - Li Hao
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hankou, Wuhan, 430030, Hubei, PR China
| | - Rong Liu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hankou, Wuhan, 430022, Hubei, PR China
| | - Haiyan Zhang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Hankou, Wuhan, 430030, Hubei, PR China.
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11
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Single cell transcriptomic analysis of murine lung development on hyperoxia-induced damage. Nat Commun 2021; 12:1565. [PMID: 33692365 PMCID: PMC7946947 DOI: 10.1038/s41467-021-21865-2] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 02/09/2021] [Indexed: 12/15/2022] Open
Abstract
During late lung development, alveolar and microvascular development is finalized to enable sufficient gas exchange. Impaired late lung development manifests as bronchopulmonary dysplasia (BPD) in preterm infants. Single-cell RNA sequencing (scRNA-seq) allows for assessment of complex cellular dynamics during biological processes, such as development. Here, we use MULTI-seq to generate scRNA-seq profiles of over 66,000 cells from 36 mice during normal or impaired lung development secondary to hyperoxia with validation of some of the findings in lungs from BPD patients. We observe dynamic populations of cells, including several rare cell types and putative progenitors. Hyperoxia exposure, which mimics the BPD phenotype, alters the composition of all cellular compartments, particularly alveolar epithelium, stromal fibroblasts, capillary endothelium and macrophage populations. Pathway analysis and predicted dynamic cellular crosstalk suggest inflammatory signaling as the main driver of hyperoxia-induced changes. Our data provides a single-cell view of cellular changes associated with late lung development in health and disease.
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12
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Cai Y, Ma F, Qu L, Liu B, Xiong H, Ma Y, Li S, Hao H. Weighted Gene Co-expression Network Analysis of Key Biomarkers Associated With Bronchopulmonary Dysplasia. Front Genet 2020; 11:539292. [PMID: 33033495 PMCID: PMC7509191 DOI: 10.3389/fgene.2020.539292] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 08/18/2020] [Indexed: 12/05/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a complex disorder resulting from interactions between genes and the environment. The accurate molecular etiology of BPD remains largely unclear. This study aimed to identify key BPD-associated genes and pathways functionally enriched using weighted gene co-expression network analysis (WGCNA). We analyzed microarray data of 62 pre-term patients with BPD and 38 pre-term patients without BPD from Gene Expression Omnibus (GEO). WGCNA was used to construct a gene expression network, and genes were classified into definite modules. In addition, the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses of BPD-related hub genes were performed. Firstly, we constructed a weighted gene co-expression network, and genes were divided into 10 modules. Among the modules, the yellow module was related to BPD progression and severity and included the following hub genes: MMP25, MMP9, SIRPA, CKAP4, SLCO4C1, and SLC2A3; and the red module included some co-expression molecules that displayed a continuous decline in expression with BPD progression and included the following hub genes: LEF1, ITK, CD6, RASGRP1, IL7R, SKAP1, CD3E, and ICOS. GO and KEGG analyses showed that high expression of inflammatory response-related genes and low expression of T cell receptor activation-related genes are significantly correlated with BPD progression. The present WGCNA-based study thus provides an overall perspective of BPD and lays the foundation for identifying potential pathways and hub genes that contribute to the development of BPD.
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Affiliation(s)
- Yao Cai
- Department of Neonatology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Fei Ma
- Department of Neonatology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - LiuHong Qu
- Department of Neonatology, The Maternal and Child Health Care Hospital of Huadu, Guangzhou, China.,Huadu Affiliated Hospital of Guangdong Medical University, Guangzhou, China
| | - Binqing Liu
- Department of Neonatology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hui Xiong
- Department of Neonatology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yanmei Ma
- Laboratory of Inborn Metabolism Errors, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Sitao Li
- Department of Neonatology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hu Hao
- Department of Neonatology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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13
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Yan W, Jiang M, Zheng J. Identification of key pathways and differentially expressed genes in bronchopulmonary dysplasia using bioinformatics analysis. Biotechnol Lett 2020; 42:2569-2580. [PMID: 32803430 DOI: 10.1007/s10529-020-02986-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 08/08/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVES The objective of this study was to discover unknown differentially expressed genes (DEGs) associated with bronchopulmonary dysplasia (BPD), analyze their functions and enriched signaling pathways, and identify hub genes correlating with BPD incidence and evolvement. RESULTS Of 1289 DEGs identified, 568 were downregulated and 721 were upregulated. The DEGs were mainly associated with oxidative stress, angiogenesis, extracellular matrix, inflammation, cell cycle, and protein binding. Eight DEGs were identified as hub genes, including C-X-C motif chemokine ligand 5 (Cxcl5), connective tissue growth factor (Ctgf), interleukin 6 (IL6), matrix metallopeptidase 9 (Mmp9), mitogen-activated protein kinase 14 (Mapk14), platelet and endothelial cell adhesion molecule 1 (Pecam1), TIMP metallopeptidase inhibitor 1 (Timp1), and TIMP metallopeptidase inhibitor 2 (Timp2). IL6 mRNA and protein expression levels were significantly increased in the peripheral blood of neonates with BPD. CONCLUSIONS Hence, BPD involves complex biological changes. Our findings indicate that inflammation and angiogenesis may play major roles in BPD pathogenesis and that IL6 has the potential to serve as a biomarker for early BPD diagnosis.
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Affiliation(s)
- Weiheng Yan
- Department of Neonatology, Tianjin Central Hospital of Gynecology and Obstetrics, Nankai 3rd Road No. 156, Nankai, Tianjin, China.,Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin, China
| | - Miaomiao Jiang
- Department of Neonatology, Tianjin Central Hospital of Gynecology and Obstetrics, Nankai 3rd Road No. 156, Nankai, Tianjin, China.,Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin, China
| | - Jun Zheng
- Department of Neonatology, Tianjin Central Hospital of Gynecology and Obstetrics, Nankai 3rd Road No. 156, Nankai, Tianjin, China. .,Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin Central Hospital of Gynecology Obstetrics, Tianjin, China.
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14
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Ryan FJ, Drew DP, Douglas C, Leong LEX, Moldovan M, Lynn M, Fink N, Sribnaia A, Penttila I, McPhee AJ, Collins CT, Makrides M, Gibson RA, Rogers GB, Lynn DJ. Changes in the Composition of the Gut Microbiota and the Blood Transcriptome in Preterm Infants at Less than 29 Weeks Gestation Diagnosed with Bronchopulmonary Dysplasia. mSystems 2019; 4:e00484-19. [PMID: 31662429 PMCID: PMC6819732 DOI: 10.1128/msystems.00484-19] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 10/09/2019] [Indexed: 12/21/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a common chronic lung condition in preterm infants that results in abnormal lung development and leads to considerable morbidity and mortality, making BPD one of the most common complications of preterm birth. We employed RNA sequencing and 16S rRNA gene sequencing to profile gene expression in blood and the composition of the fecal microbiota in infants born at <29 weeks gestational age and diagnosed with BPD in comparison to those of preterm infants that were not diagnosed with BPD. 16S rRNA gene sequencing, performed longitudinally on 255 fecal samples collected from 50 infants in the first months of life, identified significant differences in the relative levels of abundance of Klebsiella, Salmonella, Escherichia/Shigella, and Bifidobacterium in the BPD infants in a manner that was birth mode dependent. Transcriptome sequencing (RNA-Seq) analysis revealed that more than 400 genes were upregulated in infants with BPD. Genes upregulated in BPD infants were significantly enriched for functions related to red blood cell development and oxygen transport, while several immune-related pathways were downregulated. We also identified a gene expression signature consistent with an enrichment of immunosuppressive CD71+ early erythroid cells in infants with BPD. Intriguingly, genes that were correlated in their expression with the relative abundances of specific taxa in the microbiota were significantly enriched for roles in the immune system, suggesting that changes in the microbiota might influence immune gene expression systemically.IMPORTANCE Bronchopulmonary dysplasia (BPD) is a serious inflammatory condition of the lung and is the most common complication associated with preterm birth. A large body of evidence now suggests that the gut microbiota can influence immunity and inflammation systemically; however, the role of the gut microbiota in BPD has not been evaluated to date. Here, we report that there are significant differences in the gut microbiota of infants born at <29 weeks gestation and subsequently diagnosed with BPD, which are particularly pronounced when infants are stratified by birth mode. We also show that erythroid and immune gene expression levels are significantly altered in BPD infants. Interestingly, we identified an association between the composition of the microbiota and immune gene expression in blood in early life. Together, these findings suggest that the composition of the microbiota may influence the risk of developing BPD and, more generally, may shape systemic immune gene expression.
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Affiliation(s)
- Feargal J Ryan
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Damian P Drew
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Chloe Douglas
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Lex E X Leong
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Max Moldovan
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Miriam Lynn
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Naomi Fink
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Anastasia Sribnaia
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Irmeli Penttila
- SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Andrew J McPhee
- SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- Neonatal Medicine, Women's and Children's Hospital, North Adelaide, South Australia, Australia
| | - Carmel T Collins
- SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Maria Makrides
- SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Robert A Gibson
- SAHMRI Women and Kids, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- School of Agriculture, Food, and Wine, The University of Adelaide, Adelaide, South Australia, Australia
| | - Geraint B Rogers
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - David J Lynn
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
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15
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Lignelli E, Palumbo F, Myti D, Morty RE. Recent advances in our understanding of the mechanisms of lung alveolarization and bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2019; 317:L832-L887. [PMID: 31596603 DOI: 10.1152/ajplung.00369.2019] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is the most common cause of morbidity and mortality in preterm infants. A key histopathological feature of BPD is stunted late lung development, where the process of alveolarization-the generation of alveolar gas exchange units-is impeded, through mechanisms that remain largely unclear. As such, there is interest in the clarification both of the pathomechanisms at play in affected lungs, and the mechanisms of de novo alveoli generation in healthy, developing lungs. A better understanding of normal and pathological alveolarization might reveal opportunities for improved medical management of affected infants. Furthermore, disturbances to the alveolar architecture are a key histopathological feature of several adult chronic lung diseases, including emphysema and fibrosis, and it is envisaged that knowledge about the mechanisms of alveologenesis might facilitate regeneration of healthy lung parenchyma in affected patients. To this end, recent efforts have interrogated clinical data, developed new-and refined existing-in vivo and in vitro models of BPD, have applied new microscopic and radiographic approaches, and have developed advanced cell-culture approaches, including organoid generation. Advances have also been made in the development of other methodologies, including single-cell analysis, metabolomics, lipidomics, and proteomics, as well as the generation and use of complex mouse genetics tools. The objective of this review is to present advances made in our understanding of the mechanisms of lung alveolarization and BPD over the period 1 January 2017-30 June 2019, a period that spans the 50th anniversary of the original clinical description of BPD in preterm infants.
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Affiliation(s)
- Ettore Lignelli
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Francesco Palumbo
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Despoina Myti
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Rory E Morty
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
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16
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Yuan L, Qian G, Chen L, Wu CL, Dan HC, Xiao Y, Wang X. Co-expression Network Analysis of Biomarkers for Adrenocortical Carcinoma. Front Genet 2018; 9:328. [PMID: 30158955 PMCID: PMC6104177 DOI: 10.3389/fgene.2018.00328] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 07/31/2018] [Indexed: 01/08/2023] Open
Abstract
Adrenocortical carcinoma (ACC) is a rare malignancy with a poor prognosis. And currently, there are no specific diagnostic biomarkers for ACC. In our study, we aimed to screen biomarkers for disease diagnosis, progression and prognosis. We firstly used the microarray data from public database Gene Expression Omnibus database to construct a weighted gene co-expression network, and then to identify gene modules associated with clinical features of ACC. Though this algorithm, a significant module with R2 = 0.64 (P = 9 × 10-5) was identified. Co-expression network and protein–protein interaction network were performed for screen the candidate hub genes. Checked by The Cancer Genome Atlas (TCGA) database, another independent dataset GSE19750, and GEPIA database, using one-way ANOVA, Pearson’s correlation, survival analysis, diagnostic capacity (ROC curve) and expression level revalidation, a total 12 real hub genes were identified. Gene ontology and KEGG pathway analysis of genes in the significant module revealed that the hub genes are significantly enriched in cell cycle regulation. Moreover, gene set enrichment analysis suggests that the samples with highly expressed hub genes are correlated with cell cycle. Taken together, our integrated analysis has identified 12 hub genes that are associated with the progression and prognosis of ACC; these hub genes might lead to poor outcomes by regulating the cell cycle.
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Affiliation(s)
- Lushun Yuan
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Guofeng Qian
- Department of Endocrinology, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Liang Chen
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Chin-Lee Wu
- Department of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Han C Dan
- Greenebaum Cancer Center, School of Medicine, University of Maryland, Baltimore, MD, United States
| | - Yu Xiao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
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17
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Wang J, Yuan L, Liu X, Wang G, Zhu Y, Qian K, Xiao Y, Wang X. Bioinformatics and functional analyses of key genes and pathways in human clear cell renal cell carcinoma. Oncol Lett 2018; 15:9133-9141. [PMID: 29805645 PMCID: PMC5958663 DOI: 10.3892/ol.2018.8473] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 12/11/2017] [Indexed: 02/06/2023] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is the most common type of kidney cancer. The present study was conducted to explore the mechanisms and identify the potential target genes for ccRCC using bioinformatics analysis. The microarray data of GSE15641 were screened on Gene-Cloud of Biotechnology Information (GCBI). A total of 32 ccRCC samples and 23 normal kidney samples were used to identify differentially expressed genes (DEGs) between them. Subsequently, the clustering analysis and functional enrichment analysis of these DEGs were performed, followed by protein-protein interaction (PPI) network, and pathway relation network. Additionally, the most significant module based on PPI network was selected, and the genes in the module were identified as hub genes. Furthermore, transcriptional level, translational level and survival analyses of hub genes were performed to verify the results. A total of 805 genes, 403 upregulated and 402 downregulated, were differentially expressed in ccRCC samples compared with normal controls. The subsequent bioinformatics analysis indicated that the small molecule metabolic process and the metabolic pathway were significantly enriched. A total of 7 genes, including membrane metallo-endopeptidase (MME), albumin (ALB), cadherin 1 (CDH1), prominin 1 (ROM1), chemokine (C-X-C motif) ligand 12 (CXCL12), protein tyrosine phosphatase receptor type C (PTPRC) and intercellular adhesion molecule 1 (ICAM1) were identified as hub genes. In brief, the present study indicated that these candidate genes and pathways may aid in deciphering the molecular mechanisms underlying the development of ccRCC, and may be used as therapeutic targets and diagnostic biomarkers of ccRCC.
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Affiliation(s)
- Jinxing Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Lushun Yuan
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Xingnian Liu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Gang Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yuan Zhu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Kaiyu Qian
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China.,Department of Urology, The Fifth Hospital of Wuhan, Wuhan, Hubei 430071, P.R. China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yu Xiao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China.,Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China.,Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Xinghuan Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
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