UPP1 as a Diagnostic Biomarker: Insights from Integrative Bioinformatics and Immune Infiltration Analyses in COPD.
COPD is a progressive respiratory disorder characterized by persistent airflow limitation and chronic inflammation, yet the role of N4-acetylcytidine (ac4C) RNA modification in its pathogenesis remains largely unexplored. This study aimed to systematically screen for ac4C-related genes (ac4C-RGs) from a published datab...