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Tumor delivery of Photofrin® by PLL-g-PEG for photodynamic therapy
Abstract
Photofrin® (porfimer sodium) is a photosensitive reagent used for photodynamic therapy (PDT) of tumors and dysplasias. Because only photo-irradiated sites are damaged, PDT is less invasive than systemic treatments. However, a photosensitive reaction is a major side effect of systemically delivered Photofrin. To enhance localization of Photofrin to tumors, we have formulated Photofrin with the tumor-localizing graft copolymer poly(ethylene glycol)-grafted poly(l-lysine), PLL-g-PEG. We demonstrate that Photofrin preferentially interacts with PLL-g-PEG through both ionic and hydrophobic interactions. The serum competitive study showed that the highly PEG-grafted PLL is better for preventing serum binding to the Photofrin/PLL-g-PEG complex. In tumor-bearing mice, formulation of Photofrin with PLL-g-PEG enhanced tumor localization of Photofrin as twice as Photofrin alone and concomitantly suppressed the photosensitivity reaction drastically.
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“In 20% of the mice examined, tumor necrosis occurred.”
From Photodynamic Therapy for Thyroid Cancer (2025) · cites this paper as [42]
In the citing paper
“Compared to the control group, the study group was characterized by a significant reduction in tumor size already on the 7th day after treatment”
From Photodynamic Therapy for Thyroid Cancer (2025) · cites this paper as [42]
In the citing paper
“the percentages of tumor growth delay were approximately 48% after 7 days, approximately 55% after 14 days, and approximately 51% after 21 days, respectively.”
From Photodynamic Therapy for Thyroid Cancer (2025) · cites this paper as [42]
In the citing paper
“Studies on the effect of PDT with hypericin, porphyrin, photophrin, radachlorin or 5-aminolevulinic acid as PS on thyroid cancer have shown promising effects”
From Photodynamic Therapy for Thyroid Cancer (2025) · cites this paper as [42]
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Photodynamic Therapy for Thyroid Cancer
Inglot, J., Strzelczyk, J. K., Bartusik-Aebisher, D., & Aebisher, D. (2025) · BioMed · doi:10.3390/biomed5010008 · Cited by 2
Metadata
- Authors
- Kano, A., Taniwaki, Y., Nakamura, I., Shimada, N., Moriyama, K., & Maruyama, A.
- Affiliations
- Kyushu University (JP)
- Corresponding author
- Kano, Arihiro
- Maruyama, Atsushi
- Venue
- Journal of Controlled Release
- Publisher
- Elsevier BV
- Published
- 2013-05
- Volume
- 167
- Issue
- 3
- Pages
- 315-321
- ISSN
- 0168-3659 (ISSN-L)
- OpenAlex
- W2041519044
- Cited by
- 34
- References
- 0
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 4 · 2020: 1 · 2019: 3 · 2018: 2 · 2017: 2 · 2016: 3 · 2015: 5 · 2014: 3 · 2013: 1
- FWCI
- 3.25
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Controlled Release (publishedVersion)
- PubMed (publishedVersion)
- Institutional Repositories DataBase (IRDB) (submittedVersion)
- Tokyo Tech Research Repository (Tokyo Institute of Technology) (submittedVersion)
- Funders
- Japan Society for the Promotion of Science
- Ministry of Education, Culture, Sports, Science and Technology
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Photodynamic Therapy Research Studies
- Physical Sciences › Engineering › Biomedical Engineering › Nanoplatforms for cancer theranostics
- Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
- Keywords
- Photofrin, porfimer sodium, photodynamic therapy, tumor targeting, photosensitizer delivery, serum binding, tumor localization
- MeSH terms
- Animals, Antineoplastic Agents, Blood Proteins, Cell Survival, Light, Liver, Mice, Inbred BALB C, Neoplasms, Photochemotherapy, Polyethylene Glycols, Polylysine, Protein Binding, Photosensitizing Agents, Dihematoporphyrin Ether, Cell Line, Tumor, Mice
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