Fig. 4From: Targeting hypoxic tumor microenvironment in pancreatic cancerSummary of hypoxia-based therapeutic strategies for PC. Arrows indicate positive modulations or transitions, while blunt ends indicate negative modulations. Abbreviations: HAPs, hypoxia-activated prodrugs; NIR, near-infrared radiation; PDT, photodynamic therapy; SDT, sonodynamic therapy; UV, ultravioletBack to article page