Sulfonyl-substituted zinc phthalocyanine micelles with long-lived triplet states enable durable photodynamic immunotherapy


Repetowski P., Warszyńska M., DUMOULIN F., Dąbrowski J. M.

Nanoscale Advances, vol.8, no.18, pp.5102-5107, 2026 (SCI-Expanded, Scopus)

  • Publication Type: Article / Article
  • Volume: 8 Issue: 18
  • Publication Date: 2026
  • Doi Number: 10.1039/d6na00602g
  • Journal Name: Nanoscale Advances
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC, Directory of Open Access Journals
  • Page Numbers: pp.5102-5107
  • Acibadem Mehmet Ali Aydinlar University Affiliated: Yes

Abstract

Pluronic® 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.