Long noncoding RNA PANDAR inhibits the development of lung cancer by regulating autophagy and apoptosis pathways

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• Long non-coding RNAs (lncRNAs) are implicated in lung cancer progression.
• The specific roles of lncRNAs in regulating autophagy and apoptosis in lung cancer remain unclear.
• This study investigates the function of PANDAR in non-small cell lung cancer (NSCLC).

Purpose of the Study:

• To investigate the role of lncRNA PANDAR in NSCLC.
• To explore the relationship between PANDAR, autophagy, and apoptosis in NSCLC.
• To determine the potential of PANDAR as a therapeutic target in NSCLC.

Main Methods:

• Analyzed PANDAR and BECN1 expression in 276 lung cancer tissues and cell lines.
• Conducted in vitro experiments to assess PANDAR's effects on NSCLC cell proliferation, apoptosis, and autophagy.
• Correlated PANDAR expression with clinical tumor stage and BECN1 levels.

Main Results:

• PANDAR was downregulated in NSCLC tissues and cell lines, correlating with tumor stage.
• BECN1, an autophagy-related gene, was also downregulated in NSCLC.
• A positive correlation was observed between PANDAR and BECN1 expression (r = 0.789, P < 0.001).
• Overexpression of PANDAR increased BECN1 levels, impaired NSCLC cell proliferation, and modulated autophagy and apoptosis.

Conclusions:

• lncRNA PANDAR functions as a tumor suppressor in NSCLC.
• PANDAR inhibits NSCLC cell proliferation by activating autophagy and apoptosis pathways.
• Upregulation of BECN1 expression mediates the tumor-suppressive effects of PANDAR in NSCLC.