Abstract:
:Brown fat has been highlight as a new therapeutic target for treatment of obesity and diabetes. However, molecular mechanism underlying brown adipogenesis are not fully understood. Here, we identified that MAP kinase phosphatase 3 (MKP3) has a novel role as regulator of brown adipocyte differentiation. The expression of MKP3 was significantly decreased during the early stage(s) of brown adipocyte differentiation in HIB-1B cells and primary cells. Ectopic expression of MKP3 led to reduced brown adipocyte differentiation, whereas depletion of MKP3 significantly enhanced the differentiation of primary brown preadipocytes. Consistently, we found an increased brown adipocyte differentiation in MKP3-null MEF cells. These inhibitory effects of MKP3 could be resulted via the temporal regulation of Erk activation. In recent, it was reported that MKP3 deficient mice are resistant to diet-induced obesity, and display enhanced energy expenditure. Taken together, we suggest that MKP3 could be an important factor in the regulation of brown adipocyte differentiation.
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Kim WK,Oh KJ,Choi HR,Park A,Han BS,Chi SW,Kim SJ,Bae KH,Lee SCdoi
10.1016/j.mce.2015.08.023subject
Has Abstractpub_date
2015-11-15 00:00:00pages
70-6eissn
0303-7207issn
1872-8057pii
S0303-7207(15)30063-0journal_volume
416pub_type
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