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

ABSTRACT: Expression profiling of lung derived mesenchymal stromal cells to lung fibrblasts and cord blood derived mesenchymal stromal cells

ORGANISM(S): Homo sapiens

PROVIDER: GSE24583 | GEO | 2010/10/08

SECONDARY ACCESSION(S): PRJNA132487

REPOSITORIES: GEO

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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

Mesenchymal stromal cells from neonatal tracheal aspirates demonstrate a pattern of lung-specific gene expression.

Project description: Not available

| S-EPMC3202893 | biostudies-literature

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

Transcriptomic analysis of normal and IPF lung fibroblast SSEA4+ and SSEA4- cells

Project description:Recently, SSEA4+ mesenchymal progenitor cells have been described in stromal cultures, where IPF (but not normal) progenitor cells show pathological properties both in vitro and in vivo. The purpose of this study is to determine differences between mesenchymal progenitor cells sorted from stromal cultures derived from the lung biopsies of IPF patients showing a slow progressive versus rapid progressive decline of lung function as previously defined (Trujillo, G et al Science trans med 2010). Further, both groups were also compared to their normal lung counterparts as well as SSEA4- mesenchymal progeny.

2018-02-13 | GSE103488 | GEO

miRNA expression in tracheal aspirates

Project description:miRNA expression in tracheal aspirates

| PRJNA656545 | ENA

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

Project description: Not available

| S-EPMC5773003 | biostudies-literature

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

Impaired Fetal Lung Development can be Rescued by Administration of Extracellular Vesicles Derived from Amniotic Fluid Stem Cells

Project description:Primary epithelial cells isolated from fetal lungs of rat fetuses with or without lung hypoplasia induced by the administration of nitrofen to pregnant rats. Control group included epithelial cells from normal fetal lungs. Treatment with amniotic fluid stem cell derived extracellular vesicles or with mesenchymal stromal cell derived exosomes, RNA-seq of both cargos included.

2021-03-23 | E-MTAB-8921 | biostudies-arrayexpress

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

Project description: Not available

| S-EPMC8000397 | biostudies-literature

Hematopoietic origin of most CD45– bone marrow cells

Project description:The non-hematopoietic cell fraction of the bone marrow (BM) is classically identified as CD45– Ter119– CD31– (herein referred to as triple-negative cells or TNCs). Although TNCs are believed to contain heterogeneous stromal cell populations, they remain poorly defined. Here we show, unexpectedly, that the vast majority of TNCs (~85%) have a hematopoietic rather than mesenchymal origin. Single cell RNA-sequencing reveals erythroid and lymphoid progenitor signatures among CD51– TNCs. When cultured with BM-derived stromal cells, Ly6D+ CD44+ CD51–TNCs give rise to B-lymphoid cells, whereas Ly6D–CD44+ CD51–TNCs generate erythroid cells. In addition, CD44+ CD51– TNCs contribute to repopulate B-lymphoid and erythroid cells after transplantation in mice. The CD44+ CD51– TNC population also expands during phenylhydrazine-induced acute hemolysis or in a model of sickle cell anemia. These findings thus uncover physiologically relevant, yet unappreciated, classes of stromal-associated CD45– hematopoietic progenitors.

2021-04-23 | GSE113544 | GEO

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