共 31 条
ATP-Citrate Lyase Links Cellular Metabolism to Histone Acetylation
被引:1712
作者:
Wellen, Kathryn E.
[1
]
Hatzivassiliou, Georgia
[1
]
Sachdeva, Uma M.
[1
]
Bui, Thi V.
[1
]
Cross, Justin R.
[1
]
Thompson, Craig B.
[1
]
机构:
[1] Univ Penn, Dept Canc Biol, Abramson Family Canc Res Inst, Philadelphia, PA 19104 USA
来源:
关键词:
TRANSCRIPTION;
H4;
DEACETYLATION;
ACETYLTRANSFERASE;
SYNTHETASE;
ACTIVATION;
EXPRESSION;
COMPLEXES;
DYNAMICS;
SIRTUINS;
D O I:
10.1126/science.1164097
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
Histone acetylation in single-cell eukaryotes relies on acetyl coenzyme A (acetyl-CoA) synthetase enzymes that use acetate to produce acetyl-CoA. Metazoans, however, use glucose as their main carbon source and have exposure only to low concentrations of extracellular acetate. We have shown that histone acetylation in mammalian cells is dependent on adenosine triphosphate (ATP)-citrate lyase (ACL), the enzyme that converts glucose-derived citrate into acetyl-CoA. We found that ACL is required for increases in histone acetylation in response to growth factor stimulation and during differentiation, and that glucose availability can affect histone acetylation in an ACL-dependent manner. Together, these findings suggest that ACL activity is required to link growth factor-induced increases in nutrient metabolism to the regulation of histone acetylation and gene expression.
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页码:1076 / 1080
页数:5
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