An effective delivery system and imaging method for 5-Aminolevulinic acid (5-ALA)-based photodynamic therapy facilitated by the conversion of 5-ALA to protoporphyrin IX (PpIX) are lacking. Here, reversing the hypoxic tumour microenvironment can increase the in vivo biosynthesis of PpIX through the regulation of PpIX-related synthetases for traceable photodynamic therapy.
- Gang He
- Yashi Li
- Peng Huang