figshare
Browse
kadi_a_1521229_sm7310.docx (863.59 kB)

Proliferation of nutrition sensing preadipocytes upon short term HFD feeding

Download (863.59 kB)
journal contribution
posted on 2018-09-29, 15:32 authored by Elisabeth Kulenkampff, Christian Wolfrum

Adipose tissue is highly dynamic and increases its size dependent on the status of nutrition. Generally, an increase of adipose tissue mass is attributed to two mechanisms, namely hypertrophy (increase in adipocyte size) and hyperplasia (increase in adipocyte number). Here, we analyzed the proliferation capacity of a pool of nutrition sensing preadipocytes after short-term high fat diet (HFD) feeding. We show that this process is age independent and that adipocyte hyperplasia seems not to be dependent on adipocyte hypertrophy. Further, we could show that the subsequent development into adipocytes is influenced by the duration of HFD feeding after proliferation. Our data also demonstrate that the studied pool of preadipocytes seems to be finite and cannot be reactivated by multiple bouts of HFD feeding. In conclusion, our results indicate an important link between stem cells, nutrition status and homeostasis in the epididymal adipose tissue.

Funding

Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung [31003A 162887].

History