Loss of dE2F compromises mitochondrial function.

Loss of dE2F compromises mitochondrial function.
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DE2F的丧失会损害线粒体功能。

DOI:
10.1016/j.devcel.2013.10.002
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发表时间:
2013-11-25
期刊:
影响因子:
11.8
通讯作者:
Frolov, Maxim V.
Frolov, Maxim V.
中科院分区:
生物学1区
文献类型:
--
作者:
Ambrus, Aaron M.;Islam, Abul B. M. M. K.;Holmes, Katherine B.;Moon, Nam Sung;Lopez-Bigas, Nuria;Benevolenskaya, Elizaveta V.;Frolov, Maxim V.

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E2F/DP transcription factors regulate cell proliferation and apoptosis. Here, we investigated the mechanism of the resistance of Drosophilad DP mutants to irradiation-induced apoptosis. Contrary to the prevailing view, this is not due to an inability to induce the apoptotic transcriptional program, since we show that this program is induced, but rather due to a mitochondrial dysfunction of dDP mutants. We attribute this defect to E2F/DP-dependent control of expression of mitochondria associated genes. Genetic attenuation of several of these E2F/DP targets mimics the dDP mutant mitochondrial phenotype and protects from irradiation-induced apoptosis. Significantly, the role of E2F/DP in the regulation of mitochondrial function is conserved between flies and humans. Thus, our results uncovered a role of E2F/DP in the regulation of mitochondrial function and demonstrate that this aspect of E2F regulation is critical for the normal induction of apoptosis in response to irradiation.
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