Identifying Genes Involved in Cellular Senescence
Author Information
Author(s): Emilie Rovillain, Louise Mansfield, Christopher J Lord, Alan Ashworth, Parmjit S Jat
Primary Institution: UCL Institute of Neurology
Hypothesis
What are the downstream effectors of the p53 and pRB tumor suppressor pathways involved in cellular senescence?
Conclusion
The study identified TMEM9B, ATXN10, LAYN, and LTBP2/3 as novel downstream effectors of the p53-p21 and p16-pRB tumor suppressor pathways.
Supporting Evidence
- TMEM9B, ATXN10, LAYN, and LTBP2/3 were identified as common genes up-regulated upon senescence.
- Direct silencing of these genes bypassed senescence in human fibroblasts.
- TMEM9B has been suggested to activate NF-κB signaling, which is linked to senescence.
Takeaway
Scientists found some genes that help cells stop growing when they get old, which could help us understand cancer better.
Methodology
The study used a loss-of-function RNA interference screen in conditionally immortalized human fibroblasts to identify genes involved in bypassing senescence.
Participant Demographics
Human fibroblasts
Statistical Information
P-Value
1 × 10-3
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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