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Neonatal monocytes in tracheal aspirates from infants at risk for Bronchopulmonary Dysplasia propagate IL-1 signaling in the first weeks of lung injury

ABSTRACT: Neonatal monocytes in tracheal aspirates from infants at risk for Bronchopulmonary Dysplasia propagate IL-1 signaling in the first weeks of lung injury

PROVIDER: PRJNA524813 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8646010.fastq.gz	Fastqsanger.gz
	SRR8646020.fastq.gz	Fastqsanger.gz
	SRR8646030.fastq.gz	Fastqsanger.gz
	SRR8646040.fastq.gz	Fastqsanger.gz
	SRR8646050.fastq.gz	Fastqsanger.gz

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Neonatal monocytes in tracheal aspirates from infants at risk for Bronchopulmonary Dysplasia propagate IL-1 signaling in the first weeks of lung injury

Project description:Sorted human monocytes, isolated from tracheal aspirates from intubated premature infants.

2024-02-01 | GSE127455 | GEO

Airway Exosomal miRNA predicts Bronchopulmonary Dysplasis in Extremely Preterm Infants

Project description:We conducted a prospective cohort study with independent Discovery and Validation cohorts, to formulate predictive biomarkers for Bronchopulmonary Dysplasia in extremely preterm infants. Tracheal aspirate samples were collected at birth from extremely preterm infants. Exosomes were extracted from tracheal aspirates and total RNA was extracted from these exosomes from individual samples. miRNA profiling for all ~ 800 miRNAs was conducted on each sample by nanostring platform. This study found that a distinct airway exosomal miRNA sigrature at birth (decreased miR 876-3p) predicts future development of severe Bronchopulmonary Dysplasia in extremely preterm infants.

2017-12-29 | GSE108604 | GEO

miRNA expression in tracheal aspirates

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.

2020-08-12 | GSE156055 | GEO

miRNA expression in tracheal aspirates [sBPD, BPD-PH]

Project description:Extreme preterm infants are a growing population in the neonatal intensive care unit. Multiple factors play a role in preterm birth, resulting in complications including severe bronchopulmonary dysplasia (sBPD) without or with and pulmonary hypertension (BPD-PH). The goal of this study was to identify biomarker signatures associated with sBPD and BPD-PH. We analyzed profiles in tracheal aspirates (TAs) from 46 extremely preterm infants receiving invasive mechanical ventilation (25 sBPD, 21 BPD-PH) . We found specific miRNA signatures in TAs that may serve as biomarkers for the two disease phenotypes.

2022-06-01 | GSE205138 | GEO

Ceramides in tracheal aspirates of preterm infants: Marker for bronchopulmonary dysplasia.

Project description:BackgroundIn an experimental mouse model we showed that ceramides play a role in the pathogenesis of bronchopulmonary dysplasia (BPD) and are a potential target for therapeutic intervention. We investigated whether ceramides are detectable in tracheal aspirates (TAs) of preterm infants and differ between infants with or without BPD.MethodsInfants born ≤ 32 weeks of gestational age in need of mechanical ventilation in the first week of life were included. TAs were obtained directly after intubation and at day 1, 3, 5, 7, and 14. Ceramide concentrations were measured by tandem mass spectrometry. At 36 weeks postmenstrual age BPD was defined as having had ≥ 28 days supplemental oxygen.Results122 infants were included, of which 14 died and 41 developed BPD. All infants showed an increase in ceramides after the first day of intubation. The ceramide profile differed significantly between preterm infants who did and did not develop BPD. However, the ceramide profile had no additional predictive value for BPD development over GA at birth, birth weight and total days of mechanical ventilation.ConclusionsCeramides are measurable in TAs of preterm born infants and may be an early marker for BPD development.

| S-EPMC5773003 | biostudies-literature

miRNA expression in tracheal aspirates

Project description:miRNA expression in tracheal aspirates

| PRJNA656545 | ENA

Tracheal aspirate transcriptomic and miRNA signatures of extreme premature birth with bronchopulmonary dysplasia

Project description:We analyzed mRNA profiles in tracheal aspirates from 53 newborns receiving invasive mechanical ventilation. Twenty-six infants were extremely preterm diagnosed with BPD and twenty-seven were term babies receiving invasive mechanical ventilation for elective procedure. Specific mRNA signatures in TAs may serve as potential biomarkers for extreme prematurity and BPD pathogenesis.

2020-11-08 | GSE156028 | GEO

MicroRNA Signatures Associated with Bronchopulmonary Dysplasia Severity in Tracheal Aspirates of Preterm Infants.

Project description:Bronchopulmonary dysplasia (BPD) is a form of chronic lung disease that develops in neonates as a consequence of preterm birth, arrested fetal lung development, and inflammation. The incidence of BPD remains on the rise as a result of increasing survival of extremely preterm infants. Severe BPD contributes to significant health care costs and is associated with prolonged hospitalizations, respiratory infections, and neurodevelopmental deficits. In this study, we aimed to detect novel biomarkers of BPD severity. We collected tracheal aspirates (TAs) from preterm babies with mild/moderate (n = 8) and severe (n = 17) BPD, and we profiled the expression of 1048 miRNAs using a PCR array. Associations with biological pathways were determined with the Ingenuity Pathway Analysis (IPA) software. We found 31 miRNAs differentially expressed between the two disease groups (2-fold change, false discovery rate (FDR) < 0.05). Of these, 4 miRNAs displayed significantly higher expression levels, and 27 miRNAs had significantly lower expression levels in the severe BPD group when compared to the mild/moderate BPD group. IPA identified cell signaling and inflammation pathways associated with miRNA signatures. We conclude that TAs of extremely premature infants contain miRNA signatures associated with severe BPD. These may serve as potential biomarkers of disease severity in infants with BPD.

| S-EPMC8000397 | biostudies-literature

miRNA expression in tracheal aspirates in mild/moderate and severe BPD

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 BPD severity. We analyzed profiles in tracheal aspirates (TAs) from 25 extremely preterm infants receiving invasive mechanical ventilation. Eight infants were diagnosed with mild/moderate BPD, and 17 were diagnosed with severe BPD, according to the NHLBI consensus conference classification . We found specific miRNA signatures in TAs that may serve as biomarkers for BPD severity.

2021-01-30 | GSE165828 | GEO

Mesenchymal stromal cells from neonatal tracheal aspirates demonstrate a pattern of gene expression consistent with a lung origin

Project description:Expression profiling of lung derived mesenchymal stromal cells to lung fibrblasts and cord blood derived mesenchymal stromal cells We have previously isolated mesenchymal stromal cells (MSCs) from the tracheal aspirates of premature neonates with respiratory distress. While isolation of MSCs correlates with the development of bronchopulmonary dysplasia, the physiologic role of these cells remains unclear. To address this, we further characterized the cells, focusing on the issues of gene expression, origin and cytokine expression. Microarray comparison of early passage neonatal lung MSC gene expression to cord blood MSCs and human fetal and neonatal lung fibroblast lines demonstrated that the neonatal lung MSCs differentially expressed 971 gene probes compared to cord blood MSCs, including the transcription factors Tbx2, Tbx3, Wnt5a, FoxF1 and Gli2, each of which have been associated with lung development. Compared to lung fibroblasts, 710 gene probe transcripts were differentially expressed by the lung MSCs, including IL-6 and IL-8/CXCL8. Further, neonatal lung MSCs exhibited a pattern of Hox gene expression distinct from cord-blood MSCs but similar to human fetal lung fibroblasts, consistent with a lung origin. Together, these data suggest that MSCs isolated from neonatal tracheal aspirates originate in the lung and are distinct from lung fibroblasts.

2010-10-08 | E-GEOD-24583 | biostudies-arrayexpress

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