Permanent activation of HMGA2 in lipomas mimics its temporal physiological activation linked to the gain of adipose tissue
(2014) In Obesity 22(1). p.141-150- Abstract
- Objective: In this study the activation of HMGA2 and overexpression by FGF1-driven stimulation of adipose tissue derived stem cells (ADSCs) in adipose tissue tumors were analyzed. In addition, the expression of HMGA2 and PPAR-gamma mRNA were quantified in canine subcutaneous abdominal adipose tissue from normal and overweight purebred dogs. Design and Methods: ADSCs and adipose tissue explants stimulated with FGF1 followed by gene expression analyses of HMGA2 and p14Arf using Western-blot and qRT-PCR. Furthermore, canine subcutaneous white adipose tissue (WAT) were analyzed by qRT-PCR for their expression of HMGA2 and PPAR-gamma. Results: ADSCs and adipose tissue explants are able to execute a HMGA2 response upon FGF1 stimulation. FGF1... (More)
- Objective: In this study the activation of HMGA2 and overexpression by FGF1-driven stimulation of adipose tissue derived stem cells (ADSCs) in adipose tissue tumors were analyzed. In addition, the expression of HMGA2 and PPAR-gamma mRNA were quantified in canine subcutaneous abdominal adipose tissue from normal and overweight purebred dogs. Design and Methods: ADSCs and adipose tissue explants stimulated with FGF1 followed by gene expression analyses of HMGA2 and p14Arf using Western-blot and qRT-PCR. Furthermore, canine subcutaneous white adipose tissue (WAT) were analyzed by qRT-PCR for their expression of HMGA2 and PPAR-gamma. Results: ADSCs and adipose tissue explants are able to execute a HMGA2 response upon FGF1 stimulation. FGF1 enhances proliferation of ADSCs by a HMGA2-dependent mechanism. In lipomas increase of HMGA2 is accompanied by increased expression of p14Arf. Furthermore, a significantly elevated level of HMGA2 in overweight dogs and a negative correlation between the expression of HMGA2 and PPAR-gamma in subcutaneous cWAT were noted. Conclusions: These results suggest that WAT contains cells that as essential part of adipogenesis up-regulate HMGA2 resulting from growth factor stimulation. In subgroups of lipoma, constitutive activation of HMGA2 due to rearrangements replaces the temporal response triggered by growth factors. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4319666
- author
- Thies, Helge W. ; Nolte, Ingo ; Wenk, Heiner ; Mertens, Fredrik LU ; Bullerdiek, Joern and Markowski, Dominique N.
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Obesity
- volume
- 22
- issue
- 1
- pages
- 141 - 150
- publisher
- Nature Publishing Group
- external identifiers
-
- wos:000329613600023
- scopus:84892371029
- pmid:24106133
- ISSN
- 1930-739X
- DOI
- 10.1002/oby.20137
- language
- English
- LU publication?
- yes
- id
- ba2b4173-9275-491b-824b-cdb9bb6e1068 (old id 4319666)
- date added to LUP
- 2016-04-01 10:59:13
- date last changed
- 2022-01-26 04:31:17
@article{ba2b4173-9275-491b-824b-cdb9bb6e1068, abstract = {{Objective: In this study the activation of HMGA2 and overexpression by FGF1-driven stimulation of adipose tissue derived stem cells (ADSCs) in adipose tissue tumors were analyzed. In addition, the expression of HMGA2 and PPAR-gamma mRNA were quantified in canine subcutaneous abdominal adipose tissue from normal and overweight purebred dogs. Design and Methods: ADSCs and adipose tissue explants stimulated with FGF1 followed by gene expression analyses of HMGA2 and p14Arf using Western-blot and qRT-PCR. Furthermore, canine subcutaneous white adipose tissue (WAT) were analyzed by qRT-PCR for their expression of HMGA2 and PPAR-gamma. Results: ADSCs and adipose tissue explants are able to execute a HMGA2 response upon FGF1 stimulation. FGF1 enhances proliferation of ADSCs by a HMGA2-dependent mechanism. In lipomas increase of HMGA2 is accompanied by increased expression of p14Arf. Furthermore, a significantly elevated level of HMGA2 in overweight dogs and a negative correlation between the expression of HMGA2 and PPAR-gamma in subcutaneous cWAT were noted. Conclusions: These results suggest that WAT contains cells that as essential part of adipogenesis up-regulate HMGA2 resulting from growth factor stimulation. In subgroups of lipoma, constitutive activation of HMGA2 due to rearrangements replaces the temporal response triggered by growth factors.}}, author = {{Thies, Helge W. and Nolte, Ingo and Wenk, Heiner and Mertens, Fredrik and Bullerdiek, Joern and Markowski, Dominique N.}}, issn = {{1930-739X}}, language = {{eng}}, number = {{1}}, pages = {{141--150}}, publisher = {{Nature Publishing Group}}, series = {{Obesity}}, title = {{Permanent activation of HMGA2 in lipomas mimics its temporal physiological activation linked to the gain of adipose tissue}}, url = {{http://dx.doi.org/10.1002/oby.20137}}, doi = {{10.1002/oby.20137}}, volume = {{22}}, year = {{2014}}, }