tRNA and tsRNA: From Heterogeneity to Multifaceted Regulators
Yun Li1, Zongyu Yu1, Wenlin Jiang1
1Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
Biomolecules
|October 26, 2024
Summary
Transfer RNAs (tRNAs) exhibit complex roles beyond protein synthesis, with their heterogeneity influencing cell-specific functions. tRNA modifications regulate tRNA function and tRNA-derived small RNAs (tsRNAs), impacting development and disease.
Area of Science:
- Molecular Biology
- Epigenetics
- Biochemistry
Background:
- Transfer RNAs (tRNAs) are ancient RNA molecules with essential roles in protein synthesis.
- Cellular regulation leads to diverse tRNA pools (abundance, composition, modification, charging) specific to tissues and cell types.
- tRNA heterogeneity influences cell-specific protein expression and various biological processes.
Purpose of the Study:
- To summarize recent findings on tRNA heterogeneity and the regulation of tRNA function.
- To highlight advances in tRNA modification's role in tRNA function and tRNA-derived small RNA (tsRNA) biogenesis.
- To synthesize mechanisms of tRNA and tsRNA in development, cell fate, and epigenetic inheritance, and discuss clinical applications.
Main Methods:
- Literature review and synthesis of existing research on tRNA biology.
- Analysis of regulatory mechanisms governing tRNA transcription, maturation, and modification.
- Integration of data on tRNA and tsRNA functions in biological processes and disease.
Main Results:
- tRNA pools are heterogeneous, contributing to cell-specific protein expression.
- tRNA modifications are crucial regulators of tRNA function and tsRNA generation.
- tRNAs and tsRNAs play significant roles in embryonic development, cell fate determination, and epigenetic inheritance.
Conclusions:
- tRNA heterogeneity and modifications are fundamental to cellular regulation and biological processes.
- tRNAs and tsRNAs hold potential as diagnostic/prognostic biomarkers and therapeutic targets for various diseases.
- Further research into tRNA and tsRNA biology can unlock new clinical strategies.
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