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| Status |
Public on Nov 24, 2023 |
| Title |
Transcriptional determinants of lipid mobilization in human adipocytes [Microarray] |
| Organism |
Homo sapiens |
| Experiment type |
Expression profiling by array
|
| Summary |
Defects in white adipose tissue lipolysis drive multiple aspects of cardiometabolic disease but the transcriptional framework controlling this process has not been established. To address this, we performed a targeted perturbation screen in primary human adipocytes. Our analyses identified 37 transcriptional regulators of lipid mobilization, which we classified as: i) transcription factors, ii) histone variant chaperones, and iii) mRNA processing proteins. Based on its strong relationship with multiple readouts of lipolysis in patient samples, we performed mechanistic studies on ZNF189, which encodes the Zinc Finger Protein 189. Using mass-spectrometry and chromatin profiling techniques, we show that ZNF189 interacts with the tripartite motif family member TRIM28 and represses the transcription of an adipocyte-specific isoform of Phosphodiesterase 1B (PDE1B2). The regulation of lipid mobilization by ZNF189 requires PDE1B2 and overexpression of PDE1B2 is sufficient to attenuate hormone-stimulated lipolysis. Thus, our work identifies the ZNF189-PDE1B2 axis as a determinant of human adipocyte lipolysis and highlights a link between chromatin architecture and lipid mobilization.
We performed Clariom S microarray on human adipocytes to identify genes regulated by ZNF189 depletion.
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| Overall design |
We analyzed the transcriptome of 4 replicates of siControl and siZNF189 human adipocytes.
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| Contributor(s) |
Ludzki AC, Hansen M, Gao H, Mejhert N |
| Citation(s) |
38170777 |
| |
| Submission date |
Nov 15, 2023 |
| Last update date |
Jan 18, 2024 |
| Contact name |
Niklas Mejhert |
| E-mail(s) |
niklas.mejhert@ki.se
|
| Organization name |
Karolinska Institute
|
| Street address |
Blickagången 16
|
| City |
Huddinge |
| ZIP/Postal code |
141 52 |
| Country |
Sweden |
| |
|
| Platforms (1) |
| GPL23159 |
[Clariom_S_Human] Affymetrix Clariom S Assay, Human (Includes Pico Assay) |
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| Samples (8)
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| This SubSeries is part of SuperSeries: |
| GSE247818 |
Transcriptional determinants of lipid mobilization in human adipocytes |
|
| Relations |
| BioProject |
PRJNA1040769 |
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