Transcriptome Analyses of Adipose Tissue Samples Identify EGFL6 as a Candidate Gene Involved in Obesity-Related Adipose Tissue Dysfunction in Children

Obesity develops early in childhood and is accompanied by early signs of adipose tissue (AT) dysfunction and metabolic disease in children. In order to analyse the molecular processes during obesity-related AT accumulation in children, we investigated genome-wide expression profiles in AT samples, i...

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Main Authors: Biemann, R. (Author), Isermann, B. (Author), Kempf, E. (Author), Kirsten, H. (Author), Körner, A. (Author), Kühnapfel, A. (Author), Landgraf, K. (Author), Schlanstein, M. (Author), Scholz, M. (Author)
Format: Article
Language:English
Published: MDPI 2022
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Online Access:View Fulltext in Publisher
LEADER 02640nam a2200337Ia 4500
001 10.3390-ijms23084349
008 220425s2022 CNT 000 0 und d
020 |a 16616596 (ISSN) 
245 1 0 |a Transcriptome Analyses of Adipose Tissue Samples Identify EGFL6 as a Candidate Gene Involved in Obesity-Related Adipose Tissue Dysfunction in Children 
260 0 |b MDPI  |c 2022 
856 |z View Fulltext in Publisher  |u https://doi.org/10.3390/ijms23084349 
520 3 |a Obesity develops early in childhood and is accompanied by early signs of adipose tissue (AT) dysfunction and metabolic disease in children. In order to analyse the molecular processes during obesity-related AT accumulation in children, we investigated genome-wide expression profiles in AT samples, isolated adipocytes, and stromal vascular fraction (SVF) cells and assessed their relation to obesity as well as biological and functional AT parameters. We detected alterations in gene expression associated with obesity and related parameters, i.e., BMI SDS, adipocyte size, macrophage infiltration, adiponectin, and/or leptin. While differential gene expression in AT and adipocytes shared an enrichment in metabolic pathways and pathways related to extracellular structural organisation, SVF cells showed an overrepresentation in inflammatory pathways. In adipocytes, we found the strongest positive association for epidermal growth factor-like protein 6 (EGFL6) with adipocyte hypertrophy. EGFL6 was also upregulated during in vitro adipocyte differentiation. In children, EGFL6 expression was positively correlated to parameters of AT dysfunction and metabolic disease such as macrophage infiltration into AT, hs-CRP, leptin levels, and HOMA-IR. In conclusion, we provide evidence for early alterations in AT gene expression related to AT dysfunction in children and identified EGFL6 as potentially being involved in processes underlying the pathogenesis of metabolic disease. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. 
650 0 4 |a adipocyte 
650 0 4 |a adipocyte hypertrophy 
650 0 4 |a adipose tissue 
650 0 4 |a adipose tissue dysfunction 
650 0 4 |a children 
650 0 4 |a EGFL6 
650 0 4 |a metabolic disease 
650 0 4 |a obesity 
650 0 4 |a transcriptome 
700 1 |a Biemann, R.  |e author 
700 1 |a Isermann, B.  |e author 
700 1 |a Kempf, E.  |e author 
700 1 |a Kirsten, H.  |e author 
700 1 |a Körner, A.  |e author 
700 1 |a Kühnapfel, A.  |e author 
700 1 |a Landgraf, K.  |e author 
700 1 |a Schlanstein, M.  |e author 
700 1 |a Scholz, M.  |e author 
773 |t International Journal of Molecular Sciences