Sulfonyl-substituted zinc phthalocyanine micelles with long-lived triplet states enable durable photodynamic immunotherapy
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Date
Journal Title
Journal ISSN
Volume Title
dc.identifier.issn
2516-0230
dc.identifier.doi
10.1039/d6na00602g
dc.identifier.other
dc.description.volume
8
dc.description.issue
18
Publisher
ROYAL SOC CHEMISTRY
DOI
10.1039/d6na00602g
10.1039/d6na00602g
10.1039/d6na00602g
Abstract
Pluronic (R) P123 micelles stabilized a sulfonyl-substituted zinc(ii) phthalocyanine, prolonged its triplet-state lifetime, and preserved ROS photochemistry under biologically relevant conditions. Pharmacokinetic-guided C-PDT at a 24 h DLI remained insufficient as monotherapy, whereas combination with PD-L1 blockade produced durable tumor control. Rechallenge experiments after PDT additionally revealed complete long-term antitumor immune memory.
