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Published on: November 2, 2018
The emerging multiple roles of nuclear Akt
Alberto M Martelli1, Giovanna Tabellini, Daniela Bressanin
1Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy. alberto.martelli@unibo.it
Biochimica Et Biophysica Acta
|September 11, 2012
Summary
Akt, a key signaling protein, plays crucial roles in cell survival and metabolism. Recent findings show active Akt in the nucleus, influencing DNA repair, cell cycle, and cancer development.
Area of Science:
- Cellular Biology
- Molecular Biology
- Biochemistry
Background:
- Akt is a central signaling molecule regulating numerous cellular functions like proliferation, survival, metabolism, and motility.
- Dysregulated Akt activity is linked to various diseases, notably cancer.
- Recent evidence highlights the presence and activity of Akt within the cell nucleus.
Purpose of the Study:
- To review the significant findings regarding nuclear Akt.
- To summarize the diverse functions of Akt in the nucleus.
Main Methods:
- Literature review of studies investigating Akt localization and function.
- Analysis of experimental evidence demonstrating nuclear Akt activity.
- Synthesis of data on Akt's role in nuclear processes.
Main Results:
- Nuclear Akt actively participates in crucial signaling pathways.
- It counteracts apoptosis by inhibiting caspase-activated deoxyribonuclease and chromatin condensation.
- Nuclear Akt is involved in cell cycle progression, differentiation, mRNA export, DNA repair, and tumorigenesis.
Conclusions:
- Akt is a fundamental component of nuclear signaling pathways.
- Its nuclear functions are critical for maintaining cellular homeostasis and are implicated in disease pathogenesis.
- Further research into nuclear Akt functions is warranted for therapeutic strategies.
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