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Updated: Nov 18, 2025
14:57
Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
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P53 orchestrates a complex symphony of cellular processes during oncosuppression
Liz J Valente1, Laura D Attardi1,2,3
1Division of Radiation and Cancer Biology, Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA, USA.
Molecular & Cellular Oncology
|February 8, 2021
Summary
The p53 tumor suppressor coordinates many cellular functions to prevent cancer. Loss of the TP53 gene is common in cancers because p53
Area of Science:
- Oncology
- Molecular Biology
- Cellular Biology
Background:
- The p53 tumor suppressor is a critical regulator of cellular processes.
- Dysregulation of p53 is implicated in numerous human cancers.
- Understanding p53's multifaceted roles is key to cancer research.
Purpose of the Study:
- To investigate the simultaneous governance of cellular processes by p53.
- To elucidate the context-dependent mechanisms of p53-mediated tumor suppression.
- To explain the high prevalence of TP53 gene loss in human cancers.
Main Methods:
- Utilized a specific model of transformation suppression.
- Analyzed the coordinated modulation of diverse cellular functions by p53.
- Examined the impact of p53's activity on cellular processes.
Main Results:
- Demonstrated that p53 simultaneously governs numerous cellular processes.
- Showed that p53-mediated tumor suppression involves coordinated modulation of cellular functions.
- Identified a context-specific role for p53 in transformation suppression.
Conclusions:
- p53 acts as a master regulator, coordinating multiple cellular functions for tumor suppression.
- The context-dependent nature of p53's action helps explain TP53 mutations in cancer.
- Targeting p53 pathways may offer novel therapeutic strategies for cancer treatment.
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