Abstract：
:Obese adipose tissue is characterized by infiltration of macrophages. We and others recently showed that a specific subset of macrophages is recruited to obese adipose and muscle tissue. This subset expresses CD11c and produces high levels of proinflammatory cytokines that are linked to the development of obesity-associated insulin resistance. Here, we used a conditional cell ablation system, based on transgenic expression of the diphtheria toxin receptor under the control of the CD11c promoter, to study the effects of depletion of CD11c+ cells in obese mouse models. Our results show that CD11c+ cell depletion results in rapid normalization of insulin sensitivity. Furthermore, CD11c+ cell ablation leads to a marked decrease in inflammatory markers, both locally and systemically, as reflected by gene expression and protein levels. Together, these results indicate that these CD11c+ cells are a potential therapeutic target for treatment of obesity-related insulin resistance and type II diabetes.
journal_name
Cell Metabjournal_title
Cell metabolismauthors
Patsouris D,Li PP,Thapar D,Chapman J,Olefsky JM,Neels JGdoi
10.1016/j.cmet.2008.08.015subject
Has Abstractpub_date
2008-10-01 00:00:00pages
301-9issue
4eissn
1550-4131issn
1932-7420pii
S1550-4131(08)00282-9journal_volume
8pub_type
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