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Lee, K.Y.* ; Luong, Q.* ; Sharma, R.* ; Dreyfuss, J.M.* ; Ussar, S. ; Kahn, C.R.*

Developmental and functional heterogeneity of white adipocytes within a single fat depot.

EMBO J. 37:e99291 (2018)
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Recent studies suggest that, even within a single adipose depot, there may be distinct subpopulations of adipocytes. To investigate this cellular heterogeneity, we have developed multiple conditionally immortalized clonal preadipocyte lines from white adipose tissue of mice. Analysis of these clones reveals at least three white adipocyte subpopulations. These subpopulations have differences in metabolism and differentially respond to inflammatory cytokines, insulin, and growth hormones. These also have distinct gene expression profiles and can be tracked by differential expression of three marker genes: Wilms' tumor 1, transgelin, and myxovirus 1. Lineage tracing analysis with dual-fluorescent reporter mice indicates that these adipocyte subpopulations have differences in gene expression and metabolism that mirror those observed in the clonal cell lines. Furthermore, preadipocytes and adipocytes from these subpopulations differ in their abundance in different fat depots. Thus, white adipose tissue, even in a single depot, is comprised of distinct subpopulations of white adipocytes with different physiological phenotypes. These differences in adipocyte composition may contribute to the differences in metabolic behavior and physiology of different fat depots.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Adipose Tissue ; Development ; Lineage Tracing ; Metabolic Syndrome ; Obesity; Subcutaneous Adipose-tissue; Adult Smooth-muscle; Insulin Sensitivity; Gene-expression; Stem-cells; Brown; Progenitors; Activation; Mouse; Differentiation
ISSN (print) / ISBN 0261-4189
e-ISSN 1460-2075
Journal EMBO Journal, The
Quellenangaben Volume: 37, Issue: 24, Pages: , Article Number: e99291 Supplement: ,
Publisher Wiley
Publishing Place Heidelberg, Germany
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Institute of Diabetes and Obesity (IDO)