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The transcription factor cyclic AMP-responsive element-binding protein H regulates triglyceride metabolism.


ABSTRACT: Here we report that the transcription factor cyclic AMP-responsive element-binding protein H (CREB-H, encoded by CREB3L3) is required for the maintenance of normal plasma triglyceride concentrations. CREB-H-deficient mice showed hypertriglyceridemia secondary to inefficient triglyceride clearance catalyzed by lipoprotein lipase (Lpl), partly due to defective expression of the Lpl coactivators Apoc2, Apoa4 and Apoa5 (encoding apolipoproteins C2, A4 and A5, respectively) and concurrent augmentation of the Lpl inhibitor Apoc3. We identified multiple nonsynonymous mutations in CREB3L3 that produced hypomorphic or nonfunctional CREB-H protein in humans with extreme hypertriglyceridemia, implying a crucial role for CREB-H in human triglyceride metabolism.

SUBMITTER: Lee JH 

PROVIDER: S-EPMC3374483 | biostudies-literature | 2011 Jun

REPOSITORIES: biostudies-literature

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The transcription factor cyclic AMP-responsive element-binding protein H regulates triglyceride metabolism.

Lee Jung Hoon JH   Giannikopoulos Petros P   Duncan Stephen A SA   Wang Jian J   Johansen Christopher T CT   Brown Jonathan D JD   Plutzky Jorge J   Hegele Robert A RA   Glimcher Laurie H LH   Lee Ann-Hwee AH  

Nature medicine 20110612 7


Here we report that the transcription factor cyclic AMP-responsive element-binding protein H (CREB-H, encoded by CREB3L3) is required for the maintenance of normal plasma triglyceride concentrations. CREB-H-deficient mice showed hypertriglyceridemia secondary to inefficient triglyceride clearance catalyzed by lipoprotein lipase (Lpl), partly due to defective expression of the Lpl coactivators Apoc2, Apoa4 and Apoa5 (encoding apolipoproteins C2, A4 and A5, respectively) and concurrent augmentatio  ...[more]

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