Related Experiment Video
Updated: Jul 6, 2026

Monitoring Functionality and Morphology of Vasculature Recruited by Factors Secreted by Fast-growing Tumor-generating Cells
Published on: November 23, 2014
Molecular Mechanisms of Juvenile Nasopharyngeal Angiofibroma: A Narrative Review
Xingchen Liu1, Junying Hu1, Weigang Gan1
1Department of Otolaryngology Head and Neck Surgery, West China Hospital of Sichuan University, 37 Guoxue Lane, Chengdu 610041, China.
Abstract:
Juvenile nasopharyngeal angiofibroma (JNA), a rare vascular tumor in adolescent males, involves dysregulated angiogenesis and hormonal interplay. Key molecular drivers include HIF-1α, VEGF, bFGF, and β-catenin, promoting tumor growth via pathways like Wnt/β-catenin and Ras signaling. Androgens and estrogen modulate progression, though mechanisms remain debated. Targeted therapies reduce tumor proliferation and vascularity in preclinical studies, yet clinical translation is hindered by drug resistance and inconsistent biomarker expression. Hormonal and MMP-targeted approaches also show potential but require validation. This review consolidates JNA's molecular landscape, emphasizing the need for personalized strategies, biomarker refinement, and combination therapies to improve therapeutic outcomes for this challenging tumor.
Related Concept Videos
Overview of the Vascular System
Mechanism of Angiogenesis
Regulation of Angiogenesis and Blood Supply
Pulmonary Hypertension: Classification and Pathogenesis
There are various classifications for PH, each relating to different underlying causes and also...

