Wenjian Gan Lab

Medical University of South Carolina

Akt promotes tumorigenesis in part through modulating genomic instability via phosphorylating XLF


Journal article


W. Gan, Pengda Liu, Wenyi Wei
The Nucleus, 2015

Semantic Scholar DOI PubMed
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APA   Click to copy
Gan, W., Liu, P., & Wei, W. (2015). Akt promotes tumorigenesis in part through modulating genomic instability via phosphorylating XLF. The Nucleus.


Chicago/Turabian   Click to copy
Gan, W., Pengda Liu, and Wenyi Wei. “Akt Promotes Tumorigenesis in Part through Modulating Genomic Instability via Phosphorylating XLF.” The Nucleus (2015).


MLA   Click to copy
Gan, W., et al. “Akt Promotes Tumorigenesis in Part through Modulating Genomic Instability via Phosphorylating XLF.” The Nucleus, 2015.


BibTeX   Click to copy

@article{w2015a,
  title = {Akt promotes tumorigenesis in part through modulating genomic instability via phosphorylating XLF},
  year = {2015},
  journal = {The Nucleus},
  author = {Gan, W. and Liu, Pengda and Wei, Wenyi}
}

Abstract

To maintain genome stability, mammalian cells have developed a delicate, yet efficient, system to sense and repair damaged DNA, including two evolutionarily conserved DNA damage repair (DDR) pathways: homologous recombination (HR) and non-homologous-end-joining (NHEJ). Deregulation in these repair pathways may lead to genomic instability and subsequent human diseases, including cancer. On the other hand, hyper-activation of the oncogenic Akt signaling pathway has been observed in almost all solid tumors. Emerging evidence has begun to reveal a possible role of active Akt in regulating DDR, possibly through suppression of HR. However, whether and how Akt regulates NHEJ remains largely undefined. To this end, we recently reported that Akt impairs NHEJ by phosphorylating XLF at T181, to trigger its dissociation from the functional DNA ligase IV (LIG4)/XRCC4 complex. Here, we provide an additional perspective discussing how Akt is activated upon DNA damage to regulate DNA repair pathways as well as the cellular apoptotic responses.