Exploring hsa_circ_0100833 as a Potential Biomarker in Oral Squamous Cell Carcinoma: Bioinformatics and Experimental...

Area of Science:

• Oncology
• Molecular Biology
• Bioinformatics

Background:

• Oral squamous cell carcinoma (OSCC) is an aggressive cancer with limited early diagnostic markers.
• Circular RNAs (circRNAs) are emerging as significant players in cancer development.
• Hsa_circ_0100833 was identified as a differentially expressed circRNA in OSCC through bioinformatic screening.

Purpose of the Study:

• To experimentally investigate the significance of hsa_circ_0100833 in OSCC.
• To explore the potential diagnostic value of hsa_circ_0100833 in OSCC.
• To elucidate the molecular mechanism underlying hsa_circ_0100833's role in OSCC.

Main Methods:

• Differential circRNA expression profiling using the GSE145608 dataset and Limma.
• Quantitative real-time PCR (qRT-PCR) to measure hsa_circ_0100833 expression in OSCC tissues and cell lines.
• Bioinformatic analyses including ROC curve, circRNA-miRNA-mRNA interaction prediction, and pathway enrichment.

Main Results:

• Hsa_circ_0100833 was significantly down-regulated in OSCC tissues and cell lines compared to normal controls.
• A binding interaction was predicted between hsa_circ_0100833 and hsa-miR-607.
• Hsa_circ_0100833 demonstrated diagnostic potential with AUC values of 0.799 in cell lines and 0.712 in tissues.

Conclusions:

• Hsa_circ_0100833 acts as a tumor suppressor in OSCC, potentially via a hsa-miR-607/SORBS1-dependent pathway.
• The down-regulation of hsa_circ_0100833 in OSCC suggests its potential as a diagnostic biomarker.
• Further research is warranted to fully explore the diagnostic and therapeutic implications of hsa_circ_0100833 in OSCC.