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Intracellular Co-Delivery of Carbon Monoxide and Nitric Oxide Induces Mitochondrial Apoptosis for Cancer Therapy.
Angew Chem Int Ed Engl
January 2025
University of Science and Technology of China, Department of Polymer Science and Engineering, 96 Jinzhai Road, 230026, , 230026, Hefei, CHINA.
Understanding the interplay between gasotransmitters is essential for unlocking their therapeutic potential. However, achieving spatiotemporally controlled co-delivery to target cells remains a significant challenge. Herein, we propose an innovative strategy for the intracellular co-delivery of carbon monoxide (CO) and nitric oxide (NO) gasotransmitters under clinically relevant wavelengths.
View Article and Find Full Text PDFHijacking the hyaluronan assisted iron endocytosis to promote the ferroptosis in anticancer photodynamic therapy.
Carbohydr Polym
March 2025
State Key Laboratory of Complex Severe and Rare Diseases, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, PR China. Electronic address:
Photodynamic therapy (PDT) eradicates tumor cells by the light-stimulated reactive oxygen species, which also induces lipid peroxidation (LPO) and subsequently ferroptosis, an iron-depended cell death. Ferroptosis has a tremendous therapeutic potential in cancer treatment, however, the ferroptosis efficiency is largely limited by the available iron in cells. Through hijacking the CD44-mediated iron endocytosis of hyaluronan (HA), here PDT with enhanced ferroptosis was realized by a HA@Ce6 nanogel self-assembled from HA, a photosensitizer Chlorin e6 (Ce6) and Fe as cross-linkers.
View Article and Find Full Text PDFThe Focal Induction of Reactive Oxygen Species in Rats as a Trigger of Aortic Valve Degeneration.
Antioxidants (Basel)
December 2024
Department of Cardiac Surgery, University of Dusseldorf, Moorenstrasse 5, 40225 Dusseldorf, Germany.
Background: Degenerative aortic valve disease (DAVD) is a multifactorial process. We developed an animal model to analyze the isolated, local effect of reactive oxygen species (ROS) on its pathophysiology.
Methods: We utilized a photodynamic reaction (PDR) as a source of ROS in the aortic valve by aiming a laser at the aortic valve for 60 min after the administration of a photosensitizer 24 h prior.
Cell-Penetrating Peptide Like Anti-Programmed Cell Death-Ligand 1 Peptide Conjugate-Based Self-Assembled Nanoparticles for Immunogenic Photodynamic Therapy.
ACS Nano
January 2025
BK21 Program, Department of Applied Life Science, Konkuk University, Chungju 27478, Republic of Korea.
The tumor-specific efficacy of the most current anticancer therapeutic agents, including antibody-drug conjugates (ADCs), oligonucleotides, and photosensitizers, is constrained by limitations such as poor cell penetration and low drug delivery. In this study, we addressed these challenges by developing, a positively charged, amphiphilic Chlorin e6 (Ce6)-conjugated, cell-penetrating anti-PD-L1 peptide nanomedicine (CPPD1) with enhanced cell and tissue permeability. The CPPD1 molecule, a bioconjugate of a hydrophobic photosensitizer and strongly positively charged programmed cell death-ligand 1 (PD-L1) binding cell-penetrating peptide (CPP), is capable of self-assembling into nanoparticles with an average size of 199 nm in aqueous solution without the need for any carriers.
View Article and Find Full Text PDFAntimicrobial Photodynamic Inactivation of Pseudomonas aeruginosa Persister Cells and Biofilms.
Photodiagnosis Photodyn Ther
December 2024
Department of Biology, Microbiology Division, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91058, Germany. Electronic address:
Pseudomonas aeruginosa is a hard-to-treat human pathogen for which new antimicrobial agents are urgently needed. P. aeruginosa is known for forming biofilms, a complex aggregate of bacteria embedded in a self-generated protective matrix that enhance its resistance to antibiotics and the immune system.
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