TAF1D Functions as a Novel Biomarker in Osteosarcoma

Area of Science:

• Oncology
• Molecular Biology
• Biomarker Discovery

Background:

• Osteosarcoma (OS) is an aggressive bone cancer common in teenagers with a high mortality rate.
• Identifying novel biomarkers and therapeutic targets is crucial for improving OS patient outcomes.

Purpose of the Study:

• To investigate the role of TATA-box binding protein associated factor, RNA polymerase 1 subunit D (TAF1D) in osteosarcoma.
• To evaluate TAF1D as a potential diagnostic biomarker and therapeutic target for OS.

Main Methods:

• Analysis of public databases for mRNA expression of TAF1D in OS and non-cancer samples.
• Utilized Wilcoxon test, SMD, sROC, Kaplan-Meier curves, and univariate Cox analysis.
• Immunohistochemistry (IHC), ESTIMATE algorithm, TIMER2.0, Cistrome, and JASPAR databases were employed.

Main Results:

• TAF1D was significantly upregulated in OS at both mRNA and protein levels.
• TAF1D demonstrated robust discriminatory power and was associated with worse prognosis and increased tumor purity.
• The cell cycle pathway was significantly enriched, and NU.1025 was identified as a potential therapeutic agent.

Conclusions:

• TAF1D shows potential as a diagnostic biomarker for osteosarcoma.
• TAF1D may serve as a therapeutic target, offering new avenues for OS treatment.
• MYC was identified as a transcription factor regulating TAF1D expression.