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Codon optimality in cancer
Sarah L Gillen1, Joseph A Waldron2, Martin Bushell3,4
1Cancer Research UK Beatson Institute, Garscube Estate, Switchback Road, Glasgow, G61 1BD, UK. slg76@cam.ac.uk.
Oncogene
|September 29, 2021
Summary
Cancer cells require high protein synthesis, influenced by codon optimality. Optimizing codon usage, which affects translation speed and mRNA stability, may offer new cancer therapies.
Area of Science:
- Molecular Biology
- Cancer Biology
- Genetics
Background:
- Cancer cells exhibit increased proliferation, necessitating higher protein synthesis rates.
- Codons, the nucleotide triplets in mRNA, can vary without changing the amino acid sequence, yet impact protein output.
- Codon optimality, influenced by translation elongation rates and mRNA stability, is crucial for efficient protein synthesis.
Purpose of the Study:
- To review the mechanistic understanding of codon optimality.
- To explore the role of codon optimality in cancer malignancy.
- To discuss therapeutic strategies targeting codon optimality in cancer treatment.
Main Methods:
- Review of current literature on codon optimality and its impact on protein synthesis.
- Analysis of the relationship between codon preference, tRNA abundance, and cell type-specific expression.
- Examination of how codon optimality influences cell fate decisions and cancer development.
Main Results:
- Codon preference in the transcriptome aligns with cellular tRNA abundance.
- Significant differences in codon optimality exist between mRNAs for proliferative and differentiation proteins.
- Codon optimality and tRNA levels play a role in regulating cell fate and malignancy.
Conclusions:
- Codon optimality is a critical factor in regulating protein synthesis and cellular function.
- Dysregulation of codon optimality is implicated in cancer development and progression.
- Targeting codon optimality presents a promising therapeutic avenue for cancer treatment.
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