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Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
Targeting the p53 Pathway in CLL: State of the Art and Future Perspectives
Marwan Kwok1,2, Angelo Agathanggelou1, Nicholas Davies1
1Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham B15 2SY, UK.
Abstract:
The p53 pathway is a desirable therapeutic target, owing to its critical role in the maintenance of genome integrity. This is exemplified in chronic lymphocytic leukemia (CLL), one of the most common adult hematologic malignancies, in which functional loss of p53 arising from genomic aberrations are frequently associated with clonal evolution, disease progression, and therapeutic resistance, even in the contemporary era of CLL targeted therapy and immunotherapy. Targeting the 'undruggable' p53 pathway therefore arguably represents the holy grail of cancer research. In recent years, several strategies have been proposed to exploit p53 pathway defects for cancer treatment. Such strategies include upregulating wild-type p53, restoring tumor suppressive function in mutant p53, inducing synthetic lethality by targeting collateral genome maintenance pathways, and harnessing the immunogenicity of p53 pathway aberrations. In this review, we will examine the biological and clinical implications of p53 pathway defects, as well as our progress towards development of therapeutic approaches targeting the p53 pathway, specifically within the context of CLL. We will appraise the opportunities and pitfalls associated with these therapeutic strategies, and evaluate their place amongst the array of new biological therapies for CLL.
Insights
The p53 pathway is crucial for genome integrity and a key target in chronic lymphocytic leukemia (CLL). Research explores strategies to target p53 defects for effective cancer therapies.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- The p53 pathway is vital for maintaining genome integrity.
- Functional loss of p53 is common in chronic lymphocytic leukemia (CLL), driving disease progression and treatment resistance.
- Targeting the p53 pathway is a significant challenge in cancer research.
Purpose of the Study:
- To review the biological and clinical significance of p53 pathway defects in CLL.
- To examine current and emerging therapeutic strategies targeting the p53 pathway in CLL.
- To evaluate the potential and limitations of these novel therapies.
Main Methods:
- Literature review of studies on p53 pathway in CLL.
- Analysis of therapeutic strategies including p53 upregulation, restoration, synthetic lethality, and immunotherapy.
- Appraisal of clinical implications and future directions.
Main Results:
- Defects in the p53 pathway are strongly linked to CLL evolution and resistance to therapy.
- Multiple strategies are being developed to target p53, including restoring its function and exploiting pathway vulnerabilities.
- Harnessing p53 immunogenicity presents a novel therapeutic avenue.
Conclusions:
- Targeting the p53 pathway holds great promise for treating CLL, despite challenges.
- Evaluating the efficacy and safety of p53-targeted therapies is crucial for their integration into CLL treatment regimens.
- Further research is needed to optimize these strategies and overcome therapeutic resistance.
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