A key role of nuclear factor Y in the refeeding response of fatty acid synthase in adipocytes.

Abstract:

:Fatty acid synthase (Fasn) is a key component of energy metabolism that is dynamically induced by food intake. Although extensive studies have revealed a number of transcription factors involved in the fasting/refeeding transition of Fasn expression in hepatocytes, much less evidence is available for adipocytes. Using the in vivo Ad-luc analytical system, we identified the inverted CCAAT element (ICE) around -100 nucleotides in the Fasn promoter as a critical cis-element for the refeeding response in adipocytes. Electrophoretic mobility shift assays and chromatin immunoprecipitation show that nuclear factor Y (NF-Y) binds to ICE specifically in refeeding states. Notably, the NF-Y binding to ICE is differently regulated between adipocytes and hepatocytes. These findings provide insights into the specific mechanisms controlling energy metabolism in adipocytes.

journal_name

FEBS Lett

journal_title

FEBS letters

authors

Nishi-Tatsumi M,Yahagi N,Takeuchi Y,Toya N,Takarada A,Murayama Y,Aita Y,Sawada Y,Piao X,Oya Y,Shikama A,Masuda Y,Kubota M,Izumida Y,Matsuzaka T,Nakagawa Y,Sekiya M,Iizuka Y,Kawakami Y,Kadowaki T,Yamada N,Shimano

doi

10.1002/1873-3468.12620

subject

Has Abstract

pub_date

2017-04-01 00:00:00

pages

965-978

issue

7

eissn

0014-5793

issn

1873-3468

journal_volume

591

pub_type

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