ZNF480 influences the prognosis, pathogenesis, and immune microenvironment in patients with lower-grade glioma

Area of Science:

• Oncology
• Molecular Biology
• Immunology

Background:

• The role of Zinc Finger 480 (ZNF480) in malignant tumors, particularly lower-grade gliomas (LGG), remains largely unexplored.
• Understanding novel molecular players in LGG pathogenesis is crucial for developing effective therapeutic strategies.

Purpose of the Study:

• To investigate the significance of ZNF480 in the pathological process of LGG.
• To explore the correlation between ZNF480 expression and patient prognosis.
• To elucidate the role of ZNF480 in the tumor microenvironment and its relationship with immune cells and checkpoints.

Main Methods:

• Analysis of large-scale public database samples and in vitro experiments.
• Reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR) and immunohistochemistry for expression analysis.
• Gene Set Enrichment Analysis (GSEA) and Spearman correlation analysis for pathway and immunological association.

Main Results:

• ZNF480 was found to be highly expressed at both mRNA and protein levels in LGG.
• High ZNF480 expression independently correlated with significantly poorer patient survival.
• ZNF480 expression was inhibited by ademetionine disulfate tosylate in SHG-44 cells.
• ZNF480 is implicated in multiple tumor-related signaling pathways, including Notch signaling.
• ZNF480 promotes a high immune state in the LGG microenvironment, enhancing immune cell infiltration (e.g., M2 macrophages).
• ZNF480 showed a positive correlation with immune checkpoints like PD-L1.

Conclusions:

• This study establishes ZNF480 as a novel, independent prognostic factor in LGG, associated with adverse patient outcomes.
• ZNF480 influences the LGG tumor microenvironment by promoting immune cell infiltration and immune checkpoint expression.
• Targeting ZNF480 may offer a promising strategy for molecular targeted therapy or combined immunotherapy in LGG.