Zfp423 expression identifies committed preadipocytes and localizes to adipose endothelial and perivascular cells.
Journal Article (Journal Article)
Progress has been made in elucidating the cell-surface phenotype of primary adipose progenitors; however, specific functional markers and distinct molecular signatures of fat depot-specific preadipocytes have remained elusive. In this study, we label committed murine adipose progenitors through expression of GFP from the genetic locus for Zfp423, a gene controlling preadipocyte determination. Selection of GFP-expressing fibroblasts from either subcutaneous or visceral adipose-derived stromal vascular cultures isolates stably committed preadipocytes that undergo robust adipogenesis. Immunohistochemistry for Zfp423-driven GFP expression in vivo confirms a perivascular origin of preadipocytes within both white and brown adipose tissues. Interestingly, a small subset of capillary endothelial cells within white and brown fat also express this marker, suggesting a contribution of specialized endothelial cells to the adipose lineage. Zfp423(GFP) mice represent a simple tool for the specific localization and isolation of molecularly defined preadipocytes from distinct adipose tissue depots.
- Gupta, RK; Mepani, RJ; Kleiner, S; Lo, JC; Khandekar, MJ; Cohen, P; Frontini, A; Bhowmick, DC; Ye, L; Cinti, S; Spiegelman, BM
- February 8, 2012
Volume / Issue
- 15 / 2
Start / End Page
- 230 - 239
Pubmed Central ID
Electronic International Standard Serial Number (EISSN)
Digital Object Identifier (DOI)
- United States