TEAD4 is a master regulator of high-risk nasopharyngeal carcinoma

Area of Science:

• Oncology
• Molecular Biology
• Cancer Genetics

Background:

• The molecular mechanisms driving nasopharyngeal carcinoma (NPC) are not fully understood.
• Master regulator (MR) proteins are key to defining malignant tumor phenotypes through transcriptional regulation.

Purpose of the Study:

• To investigate transcription factor-target interactions in NPC.
• To identify master regulator proteins involved in high-risk NPC development and progression.

Main Methods:

• Analysis of transcription factor-target interactions.
• Investigation of TEAD4's role in NPC cell migration, invasion, and cisplatin resistance.
• Exploration of the molecular mechanisms involving YTHDF2, WTAP, m6A methylation, and TEAD4 stability.
• Assessment of TEAD4's transcriptional activation of BZW2 and the AKT pathway.
• Evaluation of TEAD4's independence from YAP/TAZ coactivators.
• Clinical correlation analysis of TEAD4 expression with NPC prognosis and cisplatin response.

Main Results:

• TEA domain transcription factor 4 (TEAD4) was identified as a master regulator in high-risk NPC.
• TEAD4 promotes NPC migration, invasion, and cisplatin resistance via autopalmitoylation.
• YTH domain family 2 (YTHDF2) recognizes WTAP-mediated TEAD4 m⁶A methylation, enhancing TEAD4 stability and leading to its upregulation.
• Upregulated TEAD4 drives NPC progression by activating BZW2 and the oncogenic AKT pathway.
• TEAD4's transcriptional activity is independent of YAP/TAZ.
• TEAD4 is an independent predictor of poor prognosis and cisplatin response in NPC.

Conclusions:

• TEAD4 plays a critical role in driving nasopharyngeal carcinoma malignancy.
• TEAD4's function is mediated by its m6A methylation status and subsequent activation of the BZW2-AKT pathway.
• TEAD4 represents a potential therapeutic vulnerability for nasopharyngeal carcinoma treatment.