Monocyte signature as a predictor of chronic lung disease in the preterm infant
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE225881 | GEO | 2023/02/22
REPOSITORIES: GEO
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Project description:Bronchopulmonary dysplasia (BPD) is a lung disease in premature infants 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 haves been increased. Therapeutic options are limited for prevention and treatment. This study was designed to explore differentially expressed genes associated with BPD. Cord blood mRNA from preterm neonates that went on to develop BPD (n = 6) or not (nonBPD, n = 17) was applied to Illumina HumanHT-12 arrays, we identify differentially expressed genes associated with BPD.
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Project description:Bronchopulmonary dysplasia (BPD) is the major cause of chronic lung disease (CLD) and morbidity in preterm infants, which characterized by impaired pulmonary alveolar development in preterm infants. There is increasing evidence that micro RNA (miRNA) has a close association with the development of pulmonary diseasesincluding lung growth, pulmonary fibrosis, pneumonia, etc. The potential role of miRNA in the pathogenesis of BPD is unclear. This study aims to clarify the role of adrenomedullin (ADM) regulated by miRNA-547-3p during the process of BPD and illustrate the protective effect of ADM involved in preterm infants.We indentified the differential expressed miRNA and their potential target genes, microarray analysis using Agilent Human 4x44K Gene Expression Microarrays v2 and miRCURY LNA™ microRNA Array was performed. The results of miRNA chip were scanned by Axon GenePix 4000B and the signal of probes were read by GenePix Pro 6.0 software. Only the target genes which exist in both two databases and having different expression trend were remained. Thus, miRNA-574-3p and it’s target gene ADM were selected to do the further research in our study. And we verified miRNA-574-3p and ADM expression in BPD premature infants by realtime q-PCR. After the microarray expression analysis, there were 516 probes differential expressed between BPD samples and normal samples. Among them, 510 were up-regulated and 213 were down-regulated. Meanwhile, to the miRNA aspect, there were 37 up-regulated and 44 down-regulated. After text mining, we found ADM was already found play a role in BPD. ADM is an endogenous peptide with potent angiogenic, anti-oxidant, and anti-inflammatory properties. Realtime q-PCR assay results showed that, miRNA-574-3p expression level in blood samples from preterm infants with BPD was significantly decreased, ADM expression level in blood samples from preterm infants with BPD was significantly increased. In our study, we found that up-regulation of ADM regulated by miRNA-574-3p could protect preterm infants with BPD. These data provide novel insights into ADM regulated by miRNA-574-3p which may be shed light on BPD prevention and treatment.
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Project description:Bronchopulmonary dysplasia (BPD) is the major cause of chronic lung disease (CLD) and morbidity in preterm infants, which characterized by impaired pulmonary alveolar development in preterm infants. There is increasing evidence that micro RNA (miRNA) has a close association with the development of pulmonary diseasesincluding lung growth, pulmonary fibrosis, pneumonia, etc. The potential role of miRNA in the pathogenesis of BPD is unclear. This study aims to clarify the role of adrenomedullin (ADM) regulated by miRNA-547-3p during the process of BPD and illustrate the protective effect of ADM involved in preterm infants.We indentified the differential expressed miRNA and their potential target genes, microarray analysis using Agilent Human 4x44K Gene Expression Microarrays v2 and miRCURY LNA™ microRNA Array was performed. The results of miRNA chip were scanned by Axon GenePix 4000B and the signal of probes were read by GenePix Pro 6.0 software. Only the target genes which exist in both two databases and having different expression trend were remained. Thus, miRNA-574-3p and it’s target gene ADM were selected to do the further research in our study. And we verified miRNA-574-3p and ADM expression in BPD premature infants by realtime q-PCR. After the microarray expression analysis, there were 516 probes differential expressed between BPD samples and normal samples. Among them, 510 were up-regulated and 213 were down-regulated. Meanwhile, to the miRNA aspect, there were 37 up-regulated and 44 down-regulated. After text mining, we found ADM was already found play a role in BPD. ADM is an endogenous peptide with potent angiogenic, anti-oxidant, and anti-inflammatory properties. Realtime q-PCR assay results showed that, miRNA-574-3p expression level in blood samples from preterm infants with BPD was significantly decreased, ADM expression level in blood samples from preterm infants with BPD was significantly increased. In our study, we found that up-regulation of ADM regulated by miRNA-574-3p could protect preterm infants with BPD. These data provide novel insights into ADM regulated by miRNA-574-3p which may be shed light on BPD prevention and treatment.
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Project description:Extreme preterm infants are a growing population in neonatal intensive care units who carry a high mortality and morbidity. Multiple factors play a role in preterm birth, resulting in major impact on organogenesis leading to complications including bronchopulmonary dysplasia (BPD). The goal of this study was to identify biomarker signatures associated with prematurity and BPD. We analyzed miRNA and mRNA profiles in tracheal aspirates (TAs) from 51 infants receiving invasive mechanical ventilation. 25 infants were extremely preterm and diagnosed with BPD, and 26 were term babies receiving invasive mechanical ventilation for elective procedures. We found specific mRNA-miRNA signatures in TAs that may serve as biomarkers for BPD pathogenesis, a consequence of extreme prematurity.
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