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Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
A CRISPR-p53 interactome with potential implications for clinical CRISPR/Cas9 use
Long Jiang1, Fredrik Wermeling1
1Department of Medicine Solna, Center for Molecular Medicine, Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden.
Abstract:
CRISPR/Cas9-based tools are anticipated to transform the gene therapy field by facilitating the correction of disease-causing mutations. However, CRISPR/Cas9 generates DNA damage, which triggers a DNA damage response centered around the tumor-suppressor p53. In this research perspective, we discuss implications of this and describe a CRISPR-p53 interactome with cancer-related genes that, if mutated, can give cells a selective advantage following exposure to CRISPR/Cas9. We propose that the genes in the CRISPR-p53 interactome should be monitored in the clinical setting and describe that transient p53 inhibition could be used to limit the enrichment of cells with such mutations.
Insights
CRISPR gene editing causes DNA damage, activating the tumor suppressor p53. A CRISPR-p53 interactome of cancer genes may offer cells a selective advantage, necessitating monitoring and potential p53 inhibition in clinical gene therapy.
Area of Science:
- Biotechnology
- Genetics
- Cancer Research
Background:
- CRISPR/Cas9 gene editing holds promise for correcting disease-causing mutations.
- CRISPR/Cas9 induces DNA damage, activating the tumor suppressor p53 and its associated DNA damage response.
- The implications of this p53-centered response in the context of gene therapy are not fully understood.
Purpose of the Study:
- To discuss the implications of CRISPR/Cas9-induced DNA damage and the p53 response in gene therapy.
- To identify a CRISPR-p53 interactome comprising cancer-related genes.
- To propose strategies for monitoring and mitigating potential risks associated with CRISPR/Cas9 use in clinics.
Main Methods:
- Literature review and analysis of CRISPR/Cas9 mechanisms.
- Bioinformatic identification of a CRISPR-p53 interactome.
- Conceptualization of clinical monitoring and therapeutic intervention strategies.
Main Results:
- CRISPR/Cas9-induced DNA damage activates a p53-dependent response.
- A specific CRISPR-p53 interactome was identified, containing cancer-related genes.
- Mutations in these interactome genes can confer a selective advantage to cells post-CRISPR/Cas9 exposure.
Conclusions:
- The CRISPR-p53 interactome represents a potential risk in clinical gene therapy settings.
- Monitoring genes within this interactome is recommended for patients undergoing CRISPR/Cas9 treatment.
- Transient inhibition of p53 may reduce the enrichment of cells with advantageous mutations.
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