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Gene expression profiles of hexadecyl-4-124I-iodobenzoate(124I-HIB)-labeled adipose-derived stem cells (ADSCs) in vitro and in vivo

ABSTRACT: [1] Microarray analysis in the rat myocardial tissue: 124I-HIB transplanted MI model Vs. phosphate buffered saline (PBS) injected myocardial infarction (MI) model Vs. Sham operated model [2] Microarray analysis in the rat adipose derived stem cells: 124I-HIB-labeled ADSCs Vs. Unlabeled ADSCs

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE64692 | GEO | 2015/01/06

SECONDARY ACCESSION(S): PRJNA271654

REPOSITORIES: GEO

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Project description:Adipogenesis occurs through a specific gene program in undifferentiated fat progenitors. We hypothesized that the properties of the fat progenitors are regulated by hox genes, the developmental genes essential in different tissue stem cells. Their biased expression in white and brown fat implies roles in distinguishing the two fat types. Among 39 Hox genes, Hoxc8 is highly enriched in undifferentiated adipose tissue stem cells (ADSCs) and down-regulated in differentiated adipocytes. Forced expression of Hoxc8 suppressed adipocyte differentiation of ADSCs. Using microarrays, we investigated the effect of Hoxc8 overexpression on global transcripts in ADSCs. We compared among four groups: untreated ADSCs, adipogenic induction media (MDI)-treated ADSCs, MDI-treated ADSC-vector and MDI-treated ADSC-Hoxc8. A number of, but not all, adipogenesis-related genes are suppressed by Hoxc8. This dataset illustrates the global effect of Hoxc8, a developmental transcription factor, on the expression of adipogenesis-related genes. Gene expression was compared among untreated ADSCs (control), adipogenic induction media-treated ADSCs, adipogenic induction media-treated ADSC-vector (ADSCs transduced with control vector), and adipogenic induction media-treated ADSC-Hoxc8 (ADSCs transduced with human Hoxc8). Total RNA was isolated from ADSCs using the Qiagen RNeasy kit (Qiagen). At NimbleGen, quality and yield were verified before cDNA synthesis and Cy3-end labeling. The labeled cDNA samples were hybridized to Homo sapiens 4-Plex arrays (Roche NimbleGen, A4487001-00-01) that represent 24,000 human genes. Raw data files for each sample were normalized and background-corrected using a Robust Multi-Array Analysis as implemented by NimbleScan software. Students’ two-tail t-tests were conducted among the samples for each transcript and fold-change was determined. Transcripts whose abundance was significantly altered (P < 0.05) and an absolute fold change greater than 2 were defined as differentially regulated.

Dataset Information

Gene expression profiles of hexadecyl-4-124I-iodobenzoate(124I-HIB)-labeled adipose-derived stem cells (ADSCs) in vitro and in vivo

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