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Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
Cancer syndromes and therapy by stop-codon readthrough
Renata Bordeira-Carriço1, Ana Paula Pêgo, Manuel Santos
1Institute of Molecular Pathology and Immunology of the University of Porto, Portugal.
Trends in Molecular Medicine
|October 10, 2012
Summary
Readthrough strategies can restore protein function in hereditary cancer syndromes caused by premature termination codons (PTC). This review explores therapeutic potential and challenges like nonsense-mediated decay.
Area of Science:
- Genetics
- Molecular Biology
- Oncology
Background:
- Hereditary cancer syndromes often arise from nonsense mutations creating premature termination codons (PTCs).
- Restoring functional protein expression is a key therapeutic goal for these genetic disorders.
- Current research explores various strategies to overcome the effects of PTCs.
Purpose of the Study:
- To review the potential of readthrough strategies for treating cancer syndromes associated with PTCs.
- To discuss the efficacy and challenges of different readthrough induction methods.
- To analyze factors influencing readthrough efficiency, including nonsense-mediated decay.
Main Methods:
- Literature review of therapeutic strategies for PTC-associated diseases.
- Analysis of small molecules (e.g., aminoglycosides, PTC124) and genetic approaches (e.g., suppressor-tRNAs).
- Evaluation of factors affecting readthrough efficiency in cancer contexts.
Main Results:
- Readthrough induction strategies show promise in preclinical models for genetic diseases like cystic fibrosis and Duchenne muscular dystrophy.
- Various methods, including small molecules and genetic manipulations, can induce readthrough of PTCs.
- Nonsense-mediated decay (NMD) and other cellular mechanisms can significantly impact the efficiency of readthrough therapies.
Conclusions:
- Readthrough strategies represent a viable therapeutic avenue for hereditary cancer syndromes linked to PTCs.
- Optimizing readthrough efficiency and overcoming resistance mechanisms like NMD are critical for clinical success.
- Further research is needed to fully harness the potential of readthrough therapies for cancer treatment.
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