tRNA Fragments in Diabetes Mellitus

Area of Science:

• Molecular Biology
• Genetics
• Endocrinology

Background:

• tRNA-derived small RNAs (tsRNAs), including tRNA-derived stress-induced RNAs (tiRNAs) and tRNA-derived fragments (tRFs), are emerging as key regulators in cellular processes.
• These non-coding RNAs play roles in gene expression, protein translation, apoptosis, and intercellular communication, suggesting their involvement in metabolic diseases.

Purpose of the Study:

• To review the current research on the role of tsRNAs in diabetes mellitus and its associated complications.
• To highlight the diagnostic and therapeutic potential of tsRNAs in clinical applications for diabetes management.

Main Methods:

• Literature review of studies investigating tsRNAs in diabetes mellitus and diabetic complications.
• Analysis of specific tsRNA biomarkers for diagnostic purposes and their functional roles in disease progression.

Main Results:

• Specific tsRNAs like tRF-1:31-Glu-CTC-1-M2 show diagnostic value for gestational diabetes mellitus (GDM).
• Combinations of tsRNAs, such as 5'ValCAC with miR-23b-3p, can distinguish between different diabetes types (e.g., maternally inherited diabetes vs. T2DM).
• Elevated tsRNAs (tRF-3001a, tRF-30) are found in diabetic retinopathy (DR), and certain fragments (5'tiRNA-His-GTG, tiRNA-Val) are linked to DR neurovascular dysfunction. tRF-Gly-CCC-039 worsens diabetic foot ulcer (DFU) progression.

Conclusions:

• tsRNAs represent a novel class of biomarkers for the early diagnosis and classification of diabetes mellitus.
• Specific tsRNAs have potential as therapeutic targets for managing diabetic complications like DR and DFU.
• The findings underscore the significant translational potential of tsRNAs in clinical practice for diabetes care.