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Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
Classic and novel roles of p53: prospects for anticancer therapy
José J Fuster1, Silvia M Sanz-González, Ute M Moll
1Vascular Biology Unit, Instituto de Biomedicina de Valencia (IBV-CSIC), Spanish Council for Scientific Research, 46010 Valencia, Spain.
Abstract:
The tumor suppressor p53 is a transcription factor that is frequently inactivated in human tumors. Therefore, restoring its function has been considered an attractive approach to restrain cancer. Typically, p53-dependent growth arrest, senescence and apoptosis of tumor cells have been attributed to transcriptional activity of nuclear p53. Notably, wild-type p53 gain-of-function enhances cancer resistance in the mouse, but it also accelerates aging in some models, possibly due to altered p53 activity. Therefore, the emerging evidence of mitochondrial transcription-independent activities of p53 has raised high expectations. Here, we review new developments in transcription-dependent and transcription-independent p53 functions, recent advances in targeting p53 for cancer treatment and the pitfalls of moving from the laboratory research to the clinical setting.
Insights
Restoring the tumor suppressor p53 (mutated in cancer) function is key for cancer therapy. New research explores both its nuclear and mitochondrial roles to improve cancer treatment strategies.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- The tumor suppressor p53 is a critical transcription factor frequently inactivated in human cancers.
- Restoring p53 function is a promising strategy for cancer treatment.
- Traditional understanding focused on nuclear p53's transcriptional role in tumor suppression.
Purpose of the Study:
- To review recent advancements in understanding both transcription-dependent and independent p53 functions.
- To discuss novel strategies for targeting p53 in cancer therapy.
- To highlight challenges in translating p53 research from the lab to clinical application.
Main Methods:
- Review of current scientific literature on p53.
- Analysis of studies investigating p53's nuclear and mitochondrial activities.
- Examination of therapeutic approaches targeting p53.
Main Results:
- Emerging evidence highlights p53's mitochondrial, transcription-independent activities.
- Wild-type p53 gain-of-function shows promise in cancer resistance but can accelerate aging.
- New therapeutic strategies are being developed to leverage diverse p53 functions.
Conclusions:
- Targeting p53 offers significant potential for cancer treatment.
- Further research into both canonical and non-canonical p53 pathways is crucial.
- Overcoming clinical translation hurdles is essential for effective p53-based therapies.
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