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Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118
3To whom correspondence should be addressed.
Recent advances regarding the biology of adipose tissue have identified
the adipocyte as an important mediator in many physiologic and
pathologic processes regarding energy metabolism. Consideration for a
central role of adipose tissue in the development of obesity,
cardiovascular disease and noninsulin-dependent diabetes mellitus
has resulted in new incentives toward understanding the complexities of
adipocyte differentiation. Current knowledge of this process includes a
cascade of transcriptional events that culminate in the expression of
peroxisome proliferatoractivated receptor-
(PPAR
) and
CCAAT/enhancer binding protein-
(C/EBP
). These prominent
adipogenic transcription factors have been shown to regulate, directly
or indirectly, the gene expression necessary for the development of the
mature adipocyte. Hormonal and nutritional signaling that impinges on
these trans-acting factors provides a molecular link
between lipids and lipid-related compounds and the gene expression
important for glucose and lipid homeostasis. Knowledge concerning the
transcriptional events mediating adipocyte differentiation provides a
basis for understanding the physiologic processes associated with
adipose tissue as well as for the development of therapeutic
interventions in obesity and its related disorders.
KEY WORDS: energy metabolism adipose tissue transcription gene expression peroxisome proliferatoractivated receptor-
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