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MiRNA expression in tracheal aspirates

ABSTRACT: miRNA expression in tracheal aspirates

PROVIDER: PRJNA656545 | ENA |

REPOSITORIES: ENA

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

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

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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.

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

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Project description:miRNA expression in tracheal aspirates in mild/moderate and severe BPD

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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 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.

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

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miRNA expression in tracheal aspirates [ICS-BPD vs. ICS-BPD-PH]

Project description:Tracheal aspirate (TAs) samples were collected from intubated preterm infants with hemodynamically significant intracardiac shunt (ICS), and a diagnosis of ICS-BPD/ICS-BPD-PH. 36 TA samples were analyzed. Small RNAs were extracted and the expression miRNAs was detected with PCR arrays.

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Tracheal aspirate RNA sequencing identifies distinct immunological features of COVID-19 ARDS

Project description:We compared differential gene expression in tracheal aspirates collected mechanically ventilated subjects with COVID-19 ARDS to gene expression in tracheal aspirates from: 1) subjects with ARDS from other casues and 2) mechanically ventilated controls without evidence of pulmonary disease.

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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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