Photodynamic therapy (PDT) is an emerging approach for the treatment of tumor diseases that has received growing interest in the past few years. In this study, we constructed liposomal photosensitizers (PS) for PDT by shoehorning as light-harvesting "antenna" molecules and dense [60]fullerene (C60) into lipid membrane bilayers. The liposomal PS showed improved photodynamic activity toward human cancer cells via the photoenergy transfer from photoactivated antenna molecules to C60.
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http://dx.doi.org/10.1021/ml100021x | DOI Listing |
J Adv Res
January 2025
Cancer Institute, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004 Jiangsu, China; Center of Clinical Oncology, The Afliated Hospital of Xuzhou Medical University, 99 West Huaihai Road, Xuzhou 221002 Jiangsu, China; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221004 Jiangsu, China. Electronic address:
Introduction: Hypericin (HP), a natural photosensitizer, has demonstrated great efficacy in photodynamic therapy (PDT) for cancer treatment. In addition to the induction of apoptosis and necrosis through reactive oxygen species (ROS) generation, the therapeutic mechanisms and targets of PDT-HP remain unknown.
Objectives: To investigate the direct targets and mechanisms of action of photoactivated hypericin in the inhibition of triple-negative breast cancer (TNBC).
Int J Biol Macromol
January 2025
Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Department of Rehabilitation Medicine, Affiliated Qingdao Central Hospital of Qingdao University, Qingdao Cancer Hospital, Qingdao, Shandong 266000, China. Electronic address:
In contemporary times, the waning effectiveness of antibiotics against bacterial infections is progressively giving rise to significant concerns in public health. Although photodynamic technology possesses a potent ability to deactivate bacteria, its non-selective attack on normal cells poses potential side effects. Hence, in this study, a boric acid-substituted phthalocyanine photosensitizer (BAPc) was synthesized, exhibiting remarkable bacterial targeting capability.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
The University of Oklahoma, Chemistry and Biochemistry, 101 Stephenson Parkway, 73019, Norman, UNITED STATES OF AMERICA.
Phototherapy - which includes photothermal therapy (PTT) and photodynamic therapy (PDT) - has evoked interest as a promising cancer treatment modality on account of its noninvasiveness, spatiotemporal precision, and minimal side effects. C. Wang et al.
View Article and Find Full Text PDFPLoS One
January 2025
Dr. Rolf M. Schwiete Center for Limbal Stem Cell and Aniridia Research, Saarland University, Homburg/Saar, Germany.
Purpose: Rose Bengal Photodynamic Therapy (RB-PDT) offers dual therapeutic benefits by enhancing corneal stiffness and providing antibacterial activity, presenting significant potential for patients with keratoconus complicated by keratitis. Our purpose was to assess the effect of rose bengal photodynamic therapy (RB-PDT) on the expression of pro-inflammatory cytokines and chemokines, as well as on extracellular matrix (ECM)-related molecules, in lipopolysaccharide (LPS)-induced inflammation of keratoconus human corneal fibroblasts (KC-HCFs). Additionally, the involvement of the mitogen-activated protein kinase (MAPK) and nuclear factor kappa B (NF-κB) signaling pathways which are downstream of the Toll-like receptor 4 (TLR4) pathway were examined.
View Article and Find Full Text PDFCancer Med
February 2025
Department of General Surgery, The First People's Hospital of Baiyin (Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine), Baiyin, China.
Background: Photodynamic therapy (PDT) is a noninvasive cancer treatment that works by using light to stimulate the production of excessive cytotoxic reactive oxygen species (ROS), which effectively eliminates tumor cells. However, the therapeutic effects of PDT are often limited by tumor hypoxia, which prevents effective tumor cell elimination. The oxygen (O) consumption during PDT can further exacerbate hypoxia, leading to post-treatment adverse events.
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