Disruption of the RNA modifications that target the ribosome translation machinery in human cancer

Area of Science:

• Molecular Biology
• Cancer Research
• Epigenetics

Background:

• Cancer cells exhibit abnormal proteomes due to genetic and epigenetic alterations affecting RNA and protein expression.
• Translation control is critical for gene expression regulation, influencing cellular fate under normal and pathological conditions.
• Transfer RNA (tRNA) and ribosomal RNA (rRNA) modifications are essential for translation efficacy and fidelity, with increasing complexity across organisms.

Purpose of the Study:

• To review alterations in tRNA and rRNA modifications affecting translation in human cancer.
• To explore how changes in RNA modification status contribute to tumorigenesis.
• To identify potential therapeutic opportunities based on a deeper understanding of RNA modification in cancer.

Main Methods:

• Literature review focusing on alterations in tRNA and rRNA modifications in human cancer.
• Analysis of mechanisms involving modifier expression (writers, readers, erasers) and their impact on translation.
• Examination of the role of RNA modification machinery components (C/D or H/ACA boxes) and associated proteins.

Main Results:

• Tumors display aberrant tRNA and rRNA modification patterns compared to normal tissues.
• Altered RNA modification status in cancer can stem from changes in modifier enzymes or RNA processing machinery.
• These modifications directly influence ribosome activity and translation fidelity in the context of cancer.

Conclusions:

• Dysregulated tRNA and rRNA modifications are significant in human cancer, impacting translation.
• Understanding these modifications provides insights into ribosome function in tumorigenesis.
• Targeting RNA modification pathways presents a promising avenue for novel cancer therapeutics.