LINC01278 Induces Autophagy to Inhibit Tumour Progression by Suppressing the mTOR Signalling Pathway.

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Uveal melanoma (UM) is an aggressive intraocular tumor linked to impaired autophagy.
• Identifying novel molecular mechanisms and biomarkers is crucial for UM treatment.

Purpose of the Study:

• To identify autophagy-related long noncoding RNAs (lncRNAs) involved in UM.
• To elucidate the molecular mechanism of LINC01278 in UM progression.

Main Methods:

• Bioinformatics analysis to identify potential lncRNA biomarkers.
• In vitro experiments using autophagy inhibitors/agonists (3-MA, MG-132) to assess LINC01278 function.
• In vivo studies using a xenograft nude mouse model.
• Experiments with mTOR pathway modulators (MHY1485, rapamycin).

Main Results:

• LINC01278 was identified as a potential prognostic biomarker for UM.
• LINC01278 inhibits UM cell proliferation, migration, and invasion by inducing autophagy.
• LINC01278 suppresses tumor growth in vivo.
• LINC01278 activates autophagy by inhibiting the mTOR signaling pathway.

Conclusions:

• LINC01278 acts as a tumor suppressor in UM by inducing autophagy through mTOR pathway inhibition.
• Targeting the LINC01278-mTOR axis presents a promising therapeutic strategy for UM.