A putative role for endogenous FGF-2 in FGF-1 mediated differentiation of human preadipocytes
Louise J Hutley, Felicity S Newell, Yu-Hee Kim, Xiao Luo, Charlotte H Widberg, Wenda Shurety, Johannes B Prins, Jonathan P Whitehead
Molecular and Cellular Endocrinology | ELSEVIER IRELAND LTD | Published : 2011
The defining characteristic of obesity is increased adipose tissue (AT) mass following chronic positive energy supply. AT mass is determined by adipocyte number and size, which reflect proliferation and differentiation of preadipocytes and hypertrophy of pre-existing adipocytes. The molecular pathways governing AT expansion are incompletely defined. We previously reported that FGF-1 primes proliferating primary human preadipocytes (phPA), thereby increasing adipogenesis. Here we examined whether FGF-1's adipogenic actions were due to modulation of other FGFs. Treatment of phPA with FGF-1 reduced FGF-2 mRNA/protein by 80%. To examine a putative functional role we performed siRNA knockdown stu..View full abstract
This work was funded by The National Health and Medical Research Council of Australia and The Diabetes Australia Research Trust and The National Heart Foundation. We acknowledge the expertise and technical assistance of Dr. Anthony Bachmann in developing methodologies used in this study.