Long non-coding RNA TGLC15 advances hepatocellular carcinoma by stabilizing Sox4

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Hepatocellular carcinoma (HCC) is a prevalent malignancy, particularly in China.
• Long non-coding RNAs (lncRNAs) play significant roles in HCC pathogenesis.
• The function of the novel intergenic lncRNA TGLC15 in HCC remains largely unknown.

Purpose of the Study:

• To investigate the role and mechanism of the novel lncRNA TGLC15 in hepatocellular carcinoma.
• To identify potential therapeutic targets for HCC based on lncRNA function.

Main Methods:

• lncRNA profiling for novel lncRNA identification.
• Quantitative real-time PCR (qRT-PCR) for expression analysis.
• In vitro migration and viability assays.
• In vivo xenograft implantation experiments.
• RNA immunoprecipitation (RIP) coupled with mass spectrometry (MS) to identify binding proteins.

Main Results:

• TGLC15 is significantly overexpressed in HCC tissues and cell lines.
• Elevated TGLC15 levels correlate with advanced TNM stages, larger tumor size, and metastasis.
• TGLC15 enhances HCC cell migration, viability, and in vivo tumor growth.
• TGLC15 interacts with Sox4, stabilizing it by inhibiting proteasomal degradation.

Conclusions:

• TGLC15 is a novel lncRNA implicated in HCC development and progression.
• The TGLC15-Sox4 signaling pathway represents a potential target for pharmaceutical intervention in HCC treatment.