Exploring the functional role of tRF-39-8HM2OSRNLNKSEKH9 in hepatocellular carcinoma

Area of Science:

• Molecular Biology
• Oncology
• Genetics

Background:

• Hepatocellular carcinoma (HCC) presents a significant global health challenge due to high morbidity and mortality.
• tRNA-derived small RNAs (tsRNAs) are emerging as critical regulators in various cancers, with potential as therapeutic targets.
• The specific role of tsRNAs in the pathogenesis of HCC remains largely unexplored.

Purpose of the Study:

• To investigate the biological significance and oncogenic potential of tsRNAs in hepatocellular carcinoma.
• To identify specific tsRNAs differentially expressed in HCC tissues and their correlation with clinicopathological features.
• To elucidate the functional impact of a key tsRNA on HCC cell proliferation and migration.

Main Methods:

• High-throughput sequencing to screen differentially expressed tsRNAs in HCC versus adjacent normal tissues.
• Agarose gel electrophoresis, nuclear-cytoplasmic separation, and fluorescence in situ hybridization for tsRNA characterization.
• In vitro assays including CCK-8, colony formation, EdU staining, and Transwell assays to assess proliferation and migration.

Main Results:

• tRF-39-8HM2OSRNLNKSEKH9 was significantly upregulated in HCC tissues compared to normal adjacent tissues.
• Elevated tRF-39-8HM2OSRNLNKSEKH9 expression correlated positively with larger tumor size in HCC patients.
• Overexpression of tRF-39-8HM2OSRNLNKSEKH9 enhanced HCC cell proliferation and accelerated cell migration.

Conclusions:

• tRF-39-8HM2OSRNLNKSEKH9 is highly expressed in HCC cells, serum, and tissues.
• This tsRNA demonstrates an oncogenic role in HCC by promoting cell proliferation and migration.
• tRF-39-8HM2OSRNLNKSEKH9 represents a potential diagnostic biomarker and therapeutic target for hepatocellular carcinoma.