DDX5 Enhances E2F1-Induced Cell Death Independent of p53
Author Information
Author(s): Rinka Nakajima, Yaxuan Zhou, Mashiro Shirasawa, Naoyasu Nishimura, Lin Zhao, Mariana Fikriyanti, Yuki Kamiya, Ritsuko Iwanaga, Andrew P. Bradford, Kaori Shinmyozu, Gohei Nishibuchi, Jun-ichi Nakayama, Kenta Kurayoshi, Keigo Araki, Kiyoshi Ohtani
Primary Institution: Kwansei Gakuin University
Hypothesis
Can DDX5 enhance E2F1-induced cell death independent of the tumor suppressor p53?
Conclusion
DDX5 enhances E2F1-mediated tumor suppressor gene expression and cell death independent of p53.
Supporting Evidence
- DDX5 enhances E2F1 activation of tumor suppressor gene promoters.
- Knockdown of DDX5 reduces E2F1-induced cell death.
- DDX5 functions as a coactivator for E2F1 independent of p53.
- DDX5 enhances E2F1-mediated expression of pro-apoptotic genes.
- DDX5's role in E2F1-mediated cell death is significant in p53-null cancer cells.
Takeaway
DDX5 helps a protein called E2F1 to make cancer cells die, even when a common cancer-fighting protein called p53 isn't working.
Methodology
The study used co-immunoprecipitation and mass spectrometry to identify DDX5 as an E2F1-interacting protein and assessed its effects on gene expression and cell death in various cell types.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website