PMID- 29511320 OWN - NLM STAT- MEDLINE DCOM- 20200103 LR - 20220416 IS - 1476-5497 (Electronic) IS - 0307-0565 (Linking) VI - 43 IP - 2 DP - 2019 Feb TI - Preadipocytes from obese humans with type 2 diabetes are epigenetically reprogrammed at genes controlling adipose tissue function. PG - 306-318 LID - 10.1038/s41366-018-0031-3 [doi] AB - BACKGROUND: Deterioration of the adipogenic potential of preadipocytes may contribute to adipose tissue dysfunction in obesity and type 2 diabetes (T2D). Here, we hypothesized that extracellular factors in obesity epigenetically reprogram adipogenesis potential and metabolic function of preadipocytes. METHODS: The transcriptomic profile of visceral adipose tissue preadipocytes collected from Lean, Obese and Obese with T2D was assessed throughout in vitro differentiation using RNA sequencing. Reduced Representation Bisulfite Sequencing was used to establish the genome-wide DNA methylation profile of human preadipocytes and 3T3-L1 preadipocytes treated by the inflammatory cytokine Tumour Necrosis Factor-alpha (TNF-alpha) or palmitate. RESULTS: While preadipocytes from all obese subjects (Obese+Obese T2D), compared to those of Lean, were transcriptionally different in response to differentiation in culture, preadipocytes from Obese T2D showed impaired insulin signalling and a further transcriptomic shift towards altered adipocyte function. Cultures with a lower expression magnitude of adipogenic genes throughout differentiation (PLIN1, CIDEC, FABP4, ADIPOQ, LPL, PDK4, APOE, LIPE, FABP3, LEP, RBP4 and CD36) were associated with DNA methylation remodelling at genes controlling insulin sensitivity and adipocytokine signalling pathways. Prior incubation of 3T3-L1 preadipocytes with TNF-alpha or palmitate markedly altered insulin responsiveness and metabolic function in the differentiated adipocytes, and remodelled DNA methylation and gene expression at specific genes, notably related to PPAR signalling. CONCLUSIONS: Our findings that preadipocytes retain the memory of the donor in culture and can be reprogrammed by extracellular factors support a mechanism by which adipocyte precursors are epigenetically reprogrammed in vivo. Epigenetic reprogramming of preadipocytes represents a mechanism by which metabolic function of visceral adipose tissue may be affected in the long term by past exposure to obesity- or T2D-specific factors. FAU - Andersen, Emil AU - Andersen E AD - Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. FAU - Ingerslev, Lars Roed AU - Ingerslev LR AD - Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. FAU - Fabre, Odile AU - Fabre O AD - Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. FAU - Donkin, Ida AU - Donkin I AD - Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. FAU - Altintas, Ali AU - Altintas A AD - Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. FAU - Versteyhe, Soetkin AU - Versteyhe S AD - Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. FAU - Bisgaard, Thue AU - Bisgaard T AD - Department of Surgical Gastroenterology, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark. FAU - Kristiansen, Viggo B AU - Kristiansen VB AD - Department of Surgical Gastroenterology, Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark. FAU - Simar, David AU - Simar D AUID- ORCID: 0000-0002-3862-1932 AD - Mechanisms of Disease and Translational Research, School of Medical Sciences, UNSW Australia, Sydney, Australia. FAU - Barres, Romain AU - Barres R AUID- ORCID: 0000-0002-0158-519X AD - Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. barres@sund.ku.dk. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180220 PL - England TA - Int J Obes (Lond) JT - International journal of obesity (2005) JID - 101256108 SB - IM MH - *Adipocytes/cytology/metabolism/physiology MH - *Adipose Tissue/cytology/physiology MH - *Diabetes Mellitus, Type 2/complications/genetics MH - *Epigenesis, Genetic/genetics/physiology MH - Gene Expression Profiling MH - Humans MH - *Obesity/complications/genetics MH - Transcriptome/genetics EDAT- 2018/03/08 06:00 MHDA- 2020/01/04 06:00 CRDT- 2018/03/08 06:00 PHST- 2017/09/30 00:00 [received] PHST- 2017/12/27 00:00 [accepted] PHST- 2017/12/12 00:00 [revised] PHST- 2018/03/08 06:00 [pubmed] PHST- 2020/01/04 06:00 [medline] PHST- 2018/03/08 06:00 [entrez] AID - 10.1038/s41366-018-0031-3 [pii] AID - 10.1038/s41366-018-0031-3 [doi] PST - ppublish SO - Int J Obes (Lond). 2019 Feb;43(2):306-318. doi: 10.1038/s41366-018-0031-3. Epub 2018 Feb 20.