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Updated: Mar 13, 2026

Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
Targeting mutant p53 through the mevalonate pathway
William Freed-Pastor1, Carol Prives2
1Dana Farber Cancer Institute, 450 Brookline Ave, Boston, Massachusetts 12215, USA.
Abstract:
It is well established that mutant forms of the p53 tumour suppressor acquire pro-oncogenic activities. Inhibition of the mevalonate pathway is now shown to promote degradation of select oncogenic mutant p53 proteins, indicating that destabilization of mutant p53 could be a promising therapeutic strategy.
Insights
Mutant p53 proteins drive cancer. Inhibiting the mevalonate pathway degrades these specific mutant p53 proteins, offering a potential new strategy for cancer therapy by destabilizing oncogenic forms.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Mutant forms of the p53 tumor suppressor protein are known to gain cancer-promoting functions.
- Understanding the mechanisms regulating mutant p53 stability is crucial for developing targeted therapies.
Purpose of the Study:
- To investigate the effect of mevalonate pathway inhibition on oncogenic mutant p53 proteins.
- To determine if targeting the mevalonate pathway can lead to the degradation of mutant p53.
Main Methods:
- Utilized cell-based assays to examine the stability of various oncogenic mutant p53 proteins.
- Applied inhibitors of the mevalonate pathway to assess their impact on mutant p53 levels.
- Analyzed protein degradation pathways to understand the mechanism of mutant p53 destabilization.
Main Results:
- Inhibition of the mevalonate pathway was found to promote the degradation of specific oncogenic mutant p53 proteins.
- The study identified a link between mevalonate pathway activity and the stability of mutant p53.
- This suggests that targeting this pathway can selectively reduce levels of harmful mutant p53 variants.
Conclusions:
- Destabilization of oncogenic mutant p53 proteins represents a viable therapeutic strategy.
- Inhibition of the mevalonate pathway is a promising approach for targeting mutant p53 in cancer treatment.
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