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Updated: Jun 20, 2026

Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
p53 gene therapy using RNA interference
I Berindan-Neagoe1, O Balacescu, C Burz
1Cancer Institute I.Chiricuta, Cluj Napoca, Romania. ioanaberi@iocn.ro
Abstract:
p53 gene, discovered almost 35 years ago, keeps the main role in cell cycle control, apoptosis pathways and transcription. p53 gene is found mutated in more than 50% of all human cancers in different locations. Many structures from viral to non viral were designed to incorporate and deliver in appropriate conditions forms of p53 gene or its transcripts, systemically to target tumor cells and to eliminate them through apoptosis or to restore the normal tumor suppressor gene role. Each delivery system presents advantages and low performance in relation to immune system recognition and acceptance. One of the major discoveries in the last years, silencing of RNA, represents a powerful tool for inhibiting post transcriptional control of gene expression. According to several studies, the RNA silencing technology for p53 transcripts together with other carriers or transporters at nano level can be used for creating new therapeutic models. RNA interference for p53 uses different double-stranded (ds) molecules like short interfering (si) RNA and, despite the difficulty of introducing them into mammalian cells due to immune system response, it can be exploited in cancer therapy.
Insights
The p53 tumor suppressor gene is frequently mutated in human cancers. RNA interference targeting p53 transcripts offers a novel therapeutic strategy for cancer, potentially overcoming delivery challenges.
Area of Science:
- Molecular Biology
- Genetics
- Cancer Research
Background:
- The p53 gene is crucial for cell cycle control and apoptosis, and its mutation is implicated in over 50% of human cancers.
- Various delivery systems for p53 gene therapy exist, but face challenges with immune response and efficacy.
- RNA silencing technology, specifically RNA interference (RNAi), has emerged as a powerful tool for gene expression regulation.
Purpose of the Study:
- To explore the potential of RNA interference targeting p53 transcripts as a cancer therapeutic strategy.
- To investigate the use of nano-level carriers for enhanced delivery of RNAi targeting p53.
Main Methods:
- Utilizing double-stranded RNA molecules, such as small interfering RNA (siRNA), for RNA interference against p53 transcripts.
- Investigating the integration of RNAi technology with nano-level carriers for systemic delivery to tumor cells.
Main Results:
- RNA silencing provides a method to inhibit post-transcriptional gene expression of p53.
- The combination of RNAi and nano-carriers shows promise for developing new therapeutic models for cancer treatment.
Conclusions:
- RNA interference targeting p53 transcripts, despite delivery challenges into mammalian cells, holds significant therapeutic potential for cancer.
- Further development of delivery systems is crucial for realizing the full potential of p53-targeted RNAi in cancer therapy.
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