A large body of evidence demonstrates depot-specific differences in the exp
ression of genes coding important functional proteins in adipocytes. This m
ay contribute to the well-known specific functional properties of the adipo
cytes from intra-abdominal and subcutaneous regions. This review will focus
on the main findings regarding the regional differences in adipocyte gene
expression in humans. These genes encode proteins belonging to three differ
ent functional groups: the metabolic enzyme and related signalling proteins
, the adipogenic factors, and, finally, the products of adipocytes.