RRC ID 85182
Author Hamabe M, Dewa W, Yuki M, Yamada E, Aiba T, Horikoshi K, Hamakubo T, Ohashi R, Okamoto A.
Title Near-infrared photochemical internalization: design of a distorted zinc phthalocyanine for efficient intracellular delivery of immunotoxins.
Journal RSC Med Chem
Abstract In the treatment of cancer, the physical and mental stress on patients and the potential for strong side effects are serious problems; therefore, reliable delivery of drugs into cancer tissue cells is required. We have developed a near-infrared (NIR) photosensitizing dye, Zn6PTPc, for NIR-photochemical internalization (PCI) to achieve gentle and efficient endosomal escape and delivery of antibody drugs, which are known to have high targeting ability but low intracellular activity, into target cancer cells. Zn6PTPc allowed longer wavelengths to be used to achieve higher singlet oxygen generation efficiency by the molecular design based on a distorted π-electron system. The system effectively introduced immunotoxins into cells to significantly inhibit tumor tissue growth. The developed potent NIR photosensitizers facilitated NIR-PCI with high tumor-targeting ability.
Volume 16(6)
Pages 2615-2626
Published 2025-6-18
DOI 10.1039/d4md00931b
PII d4md00931b
PMID 40190421
PMC PMC11967238
Resource
Human and Animal Cells A431(RCB0202) A549(RCB0098) MCF-7(RCB1904)