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Restoring the p53 'Guardian' Phenotype in p53-Deficient Tumor Cells with CRISPR/Cas9

Sergiu Chira1, Diana Gulei2, Amin Hajitou3

  • 1Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania.

Trends in Biotechnology
|February 27, 2018
PubMed

Insights

This study introduces a novel CRISPR/Cas9 system to restore the tumor suppressor gene TP53 in cancer cells. The approach aims to replace mutant TP53 with a functional copy, potentially leading to tumor regression.

Area of Science:

  • Oncology
  • Genetics
  • Molecular Biology

Background:

  • Cancer is a prevalent disease with TP53 mutations found in ~50% of human cancers.
  • Mutated TP53 is often linked to a poor prognosis in cancer patients.
  • Targeting tumor suppressor genes is a key area in cancer therapy research.

Purpose of the Study:

  • To develop a novel, tumor-specific delivery system for the TP53 gene.
  • To restore the normal p53 phenotype in cancer cells using genome editing.
  • To investigate the potential of this system for inducing tumor regression.

Main Methods:

  • Utilizing CRISPR/Cas9 genome editing technology for gene replacement.
  • Designing a system for highly tumor-specific delivery of the functional TP53 gene.
  • Focusing on restoring wild-type TP53 expression in malignant cells.

Main Results:

  • The proposed system aims to replace mutant TP53 with a functional copy in tumor cells.
  • Successful restoration is expected to lead to sustained p53 protein expression.
  • The ultimate goal is to achieve tumor regression through this gene-editing approach.

Conclusions:

  • A novel CRISPR/Cas9-based system offers a targeted approach for TP53 restoration in cancer.
  • This strategy holds promise for treating cancers with TP53 mutations.
  • Restoring p53 function could be a viable therapeutic avenue for cancer treatment.
Keywords:
AAVP tumor-target vectorCRISPR/Cas9Cancertumor regression

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