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Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
Dangerous habits of a security guard: the two faces of p53 as a drug target
Andrei V Gudkov1, Elena A Komarova
1Department of Molecular Genetics, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA. andrei.gudkov@roswellpark.org
Abstract:
Being most well-known tumor suppressor that is inactivated in tumors more frequently than any other gene, p53 has been recently recognized as a major player in a variety of pathologies caused by acute stresses of tissues that is responsible for massive cell loss from apoptosis. This created a controversial situation when effective treatment of acute pathology requires inhibition of a major cancer preventive factor that has been traditionally viewed as a target for therapeutic activation. Here we briefly review specific aspects of this problem and discuss the ways of its pharmacological resolution based on detailed knowledge of molecular mechanisms of p53 regulation and activity.
Insights
The tumor suppressor p53, crucial for preventing cancer, also drives cell loss in acute tissue damage. Inhibiting p53 for acute conditions risks cancer promotion, posing a therapeutic challenge.
Area of Science:
- Molecular Biology
- Oncology
- Pathology
Background:
- The p53 protein is a critical tumor suppressor, frequently inactivated in various cancers.
- Emerging evidence highlights p53's role in pathologies involving acute tissue stress and apoptosis-induced cell death.
Purpose of the Study:
- To review the dual role of p53 in cancer suppression and acute tissue injury.
- To discuss pharmacological strategies for managing p53's activity in pathological conditions.
Main Methods:
- Review of existing literature on p53 function in cancer and acute stress.
- Analysis of molecular mechanisms governing p53 regulation and activity.
- Discussion of potential therapeutic interventions targeting p53.
Main Results:
- p53 inactivation is common in tumors, but its activation is essential for preventing cancer.
- p53 mediates significant cell loss via apoptosis during acute tissue pathologies.
- Therapeutic inhibition of p53 for acute conditions presents a conflict with its cancer-preventive role.
Conclusions:
- Understanding p53's complex molecular mechanisms is key to resolving the therapeutic dilemma.
- Pharmacological approaches targeting p53 regulation offer potential solutions for treating acute pathologies without compromising cancer prevention.
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