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Nguyen UTT, Youn E, Le TAN, Ha NM, Tran SH, Lee S, Cha JW, Park JS, Kwon HC, Kang K. Photodynamic treatment increases the lifespan and oxidative stress resistance of Caenorhabditis elegans. Free Radic Biol Med 2024; 221:98-110. [PMID: 38754743 DOI: 10.1016/j.freeradbiomed.2024.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/29/2024] [Accepted: 05/12/2024] [Indexed: 05/18/2024]
Abstract
Photodynamic therapy is a noninvasive treatment in which specific photosensitizers and light are used to produce high amounts of reactive oxygen species (ROS), which can be employed for targeted tissue destruction in cancer treatment or antimicrobial therapy. However, it remains unknown whether lower amounts of ROS produced by mild photodynamic therapy increase lifespan and stress resistance at the organism level. Here, we introduce a novel photodynamic treatment (PDTr) that uses 20 μM hypericin, a photosensitizer that originates from Hypericum perforatum, and orange light (590 nm, 5.4 W/m2, 1 min) to induce intracellular ROS formation (ROS), thereby resulting in lifespan extension and improved stress resistance in C. elegans. The PDTr-induced increase in longevity was abrogated by N-acetyl cysteine, suggesting the hormetic response was driven by prooxidative mechanisms. PDTr activated the translocation of SKN-1/NRF-2 and DAF-16/FOXO, leading to elevated expression of downstream oxidative stress-responsive genes, including ctl-1, gst-4, and sod-3. In summary, our findings suggest a novel PDTr method that extends the lifespan of C. elegans under both normal and oxidative stress conditions through the activation of SKN-1 and DAF-16 via the involvement of many antioxidant genes.
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Affiliation(s)
- Uyen Tran Tu Nguyen
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Esther Youn
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea
| | - Tram Anh Ngoc Le
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea
| | - Ngoc Minh Ha
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Son Hung Tran
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Sohyun Lee
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Jin Wook Cha
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea
| | - Jin-Soo Park
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Hak Cheol Kwon
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea
| | - Kyungsu Kang
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea.
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2
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Sun Q, Suo Y, Lv H, Wang Q, Yin H. Porphin e6 complex loaded with gold nanorod mesoporous silica enhances photodynamic therapy in ovarian cancer cells in vitro. Lasers Med Sci 2023; 38:115. [PMID: 37133615 DOI: 10.1007/s10103-023-03784-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 04/25/2023] [Indexed: 05/04/2023]
Abstract
A growing amount of experimental evidence has proven that the application of gold nanorods (AuNRs) in photodynamic therapy (PDT) can significantly enhance its therapeutic efficacy. The aim of this study was to establish a protocol for investigating the effect of gold nanorods loaded with the photosensitizer chlorin e6 (Ce6) on photodynamic therapy in the OVCAR3 human ovarian cancer cell line in vitro and to determine whether the PDT effect was different from that of Ce6 alone. OVCAR3 cells were randomly divided into three groups: the control group, Ce6-PDT group, and AuNRs@SiO2@Ce6-PDT group. Cell viability was measured by MTT assay. The generation of reactive oxygen species (ROS) was measured by a fluorescence microplate reader. Cell apoptosis was detected by flow cytometry. The expression of apoptotic proteins was detected by immunofluorescence and western blotting. The results showed that compared with that of the Ce6-PDT group, the cell viability of the AuNRs@SiO2@Ce6-PDT group was significantly decreased (P < 0.05) in a dose-dependent manner, and ROS production increased significantly (P < 0.05). The flow cytometry results showed that the proportion of apoptotic cells in the AuNRs@SiO2@Ce6-PDT group was significantly higher than that in the Ce6-PDT group (P < 0.05). Immunofluorescence and western blot results showed that the protein expression levels of cleaved caspase-9, cleaved caspase-3, cleaved PARP, and Bax in the AuNRs@SiO2@Ce6-PDT-treated-OVCAR3 cells were higher than those in the Ce6-PDT-treated cells (P < 0.05), and the protein expression levels of caspase-3, caspase-9, PARP, and Bcl-2 were slightly lower than those in the Ce6-PDT group (P < 0.05). In summary, our results show that AuNRs@SiO2@Ce6-PDT has a significantly stronger effect on OVCAR3 cells than the effect of Ce6-PDT alone. The mechanism may be related to the expression of Bcl-2 family and caspase family in the mitochondrial pathway.
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Affiliation(s)
- Qian Sun
- Department of Physiology, School of Basic Medicine, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Yuping Suo
- Department of Gynaecology and Obstetrics, Shanxi Provincial People's Hospital, Taiyuan, 030012, Shanxi, China.
| | - Haoxuan Lv
- Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, 030012, Shanxi, China
| | - Qian Wang
- Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, 030012, Shanxi, China
| | - Hanzhen Yin
- Core Laboratory, Shanxi Provincial People's Hospital (Fifth Hospital) of Shanxi Medical University, Taiyuan, 030012, China
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Yasin G, Nasr M, Abdel Gaber SA, Hüttenberger D, Fadel M. Response surface methodological approach for optimization of photodynamic therapy of onychomycosis using chlorin e6 loaded nail penetration enhancer vesicles. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 232:112461. [PMID: 35551052 DOI: 10.1016/j.jphotobiol.2022.112461] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 11/07/2021] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Antimicrobial photodynamic inactivation (aPDI) has a tremendous potential as an alternative therapeutic modality to conventional antifungals in treatment of onychomycosis, yet the nail barrier properties and the deep-seated nature of fungi within the nails remain challenging. Therefore, the aim of this study was to prepare, optimize, and characterize Chorin e6 (Ce6) nail penetration enhancer containing vesicles (Ce6-nPEVs) and evaluate their photodynamic mediated effect against Trichophyton rubrum (T.rubrum); the main causative agent of onychomycosis. Optimization of the particle size and encapsulation efficiency of nPEVs was performed using a four-factor two-level full factorial design. The transungual delivery potential of the selected formulation was assessed in comparison with the free drug. The photodynamic treatment conditions for T.rubrum aPDI by free Ce6 was optimized using response surface methodology based on Box-Behnken design, and the aPDI effect of the selected Ce6-nPEVs was evaluated versus the free Ce6 at the optimized condition. Results showed that formulations exhibited high encapsulation efficiency for Ce6 ranging from 79.4 to 98%, particle sizes ranging from 225 to 859 nm, positive zeta potential values ranging from +30 to +70 mV, and viscosity ranging from 1.26 to 3.43 cP. The predominant parameters for maximizing the encapsulation efficiency and minimizing the particle size of Ce6-nPEVs were identified. The selected formulation showed 1.8-folds higher nail hydration and 2.3 folds improvement in percentage of Ce6 up-taken by nails compared to the free drug. Results of the microbiological study confirmed the reliability and adequacy of the Box-Behnken model, and delineated Ce6 concentration and incubation time as the significant model terms. Free Ce6 and Ce6-nPEVs showed an equipotent in vitro fungicidal effect on T.rubrum at the optimized conditions, however Ce6-nPEVs is expected to show a differential effect at the in vivo level where the advantage of the enhanced nail penetration feature will be demonstrated.
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Affiliation(s)
- Ghada Yasin
- Pharmaceutical Nano-Technology Laboratory, Department of Medical Applications of Laser, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Cairo, Egypt
| | - Maha Nasr
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Sara A Abdel Gaber
- Nanomedicine Department, Institute of Nanoscience and Nanotechnology, Kafrelsheikh University, Kafrelsheikh, Egypt
| | | | - Maha Fadel
- Pharmaceutical Nano-Technology Laboratory, Department of Medical Applications of Laser, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Cairo, Egypt.
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Silva LB, Castro KADF, Botteon CEA, Oliveira CLP, da Silva RS, Marcato PD. Hybrid Nanoparticles as an Efficient Porphyrin Delivery System for Cancer Cells to Enhance Photodynamic Therapy. Front Bioeng Biotechnol 2021; 9:679128. [PMID: 34604182 PMCID: PMC8484888 DOI: 10.3389/fbioe.2021.679128] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 06/28/2021] [Indexed: 01/10/2023] Open
Abstract
Photodynamic therapy (PDT) is a potential non-invasive approach for application in oncological diseases, based on the activation of a photosensitizer (PS) by light at a specific wavelength in the presence of molecular oxygen to produce reactive oxygen species (ROS) that trigger the death tumor cells. In this context, porphyrins are interesting PS because they are robust, have high chemical, photo, thermal, and oxidative stability, and can generate singlet oxygen (1O2). However, porphyrins exhibit low solubility and a strong tendency to aggregate in a biological environment which limits their clinical application. To overcome these challenges, we developed hybrid nanostructures to immobilize 5,10,15,20-tetrakis[(4-carboxyphenyl) thio-2,3,5,6-tetrafluorophenyl] (P), a new third-generation PS. The biological effect of this system was evaluated against bladder cancer (BC) cells with or without light exposition. The nanostructure composed of lipid carriers coated by porphyrin-chitosan (P-HNP), presented a size of ca. 130 nm and low polydispersity (ca. 0.25). The presence of the porphyrin-chitosan (P-chitosan) on lipid nanoparticle surfaces increased the nanoparticle size, changed the zeta potential to positive, decreased the recrystallization index, and increased the thermal stability of nanoparticles. Furthermore, P-chitosan incorporation on nanoparticles increased the stability and enhanced the self-organization of the system and the formation of spherical structures, as observed by small-angle X-ray scattering (SAXS) analysis. Furthermore, the immobilization process maintained the P photoactivity and improved the photophysical properties of PS, minimizing its aggregation in the cell culture medium. In the photoinduction assays, the P-HNP displayed high phototoxicity with IC50 3.2-folds lower than free porphyrin. This higher cytotoxic effect can be correlated to the high cellular uptake of porphyrin immobilized, as observed by confocal images. Moreover, the coated nanoparticles showed mucoadhesive properties interesting to its application in vivo. Therefore, the physical and chemical properties of nanoparticles may be relevant to improve the porphyrin photodynamic activity in BC cells.
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Affiliation(s)
- Letícia B. Silva
- Department of Pharmaceutical Science, GNanoBio, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Kelly A. D. F. Castro
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Caroline E. A. Botteon
- Department of Pharmaceutical Science, GNanoBio, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | | | - Roberto S. da Silva
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Priscyla D. Marcato
- Department of Pharmaceutical Science, GNanoBio, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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Liang BJ, Lusvarghi S, Ambudkar SV, Huang HC. Use of photoimmunoconjugates to characterize ABCB1 in cancer cells. NANOPHOTONICS 2021; 10:3049-3061. [PMID: 35070633 PMCID: PMC8773461 DOI: 10.1515/nanoph-2021-0252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Accurate detection of ATP-binding cassette drug transporter ABCB1 expression is imperative for precise identification of drug-resistant tumors. Existing detection methods fail to provide the necessary molecular details regarding the functional state of the transporter. Photo-immunoconjugates are a unique class of antibody-dye conjugates for molecular diagnosis and therapeutic treatment. However, conjugating hydrophobic photosensitizers to hydrophilic antibodies is quite challenging. Here, we devise a photoimmunoconjugate that combines a clinically approved benzoporphyrin derivative (BPD) photosensitizer and the conformational-sensitive UIC2 monoclonal antibody to target functionally active human ABCB1 (i.e., ABCB1 in the inward-open conformation). We show that PEGylation of UIC2 enhances the BPD conjugation efficiency and reduces the amount of non-covalently conjugated BPD molecules by 17%. Size exclusion chromatography effectively separates the different molecular weight species found in the UIC2-BPD sample. The binding of UIC2-BPD to ABCB1 was demonstrated in lipidic nanodiscs and ABCB1-overexpressing triple negative breast cancer (TNBC) cells. UIC2-BPD was found to retain the conformation sensitivity of UIC2, as the addition of ABCB1 modulators increases the antibody reactivity in vitro. Thus, the inherent fluorescence capability of BPD can be used to label ABCB1-overexpressing TNBC cells using UIC2-BPD. Our findings provide insight into conjugation of hydrophobic photosensitizers to conformation-sensitive antibodies to target proteins expressed on the surface of cancer cells.
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Affiliation(s)
- Barry J. Liang
- Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA; and Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sabrina Lusvarghi
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Suresh V. Ambudkar
- Laboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Room 2120, Bldg 37, 37 Convent Drive, Bethesda, MD 20892-4256, USA
| | - Huang-Chiao Huang
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD 20742-5031, USA; and Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201-1595, USA
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6
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Portugal I, Jain S, Severino P, Priefer R. Micro- and Nano-Based Transdermal Delivery Systems of Photosensitizing Drugs for the Treatment of Cutaneous Malignancies. Pharmaceuticals (Basel) 2021; 14:ph14080772. [PMID: 34451868 PMCID: PMC8401127 DOI: 10.3390/ph14080772] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 12/24/2022] Open
Abstract
Photodynamic therapy is one of the more unique cancer treatment options available in today’s arsenal against this devastating disease. It has historically been explored in cutaneous lesions due to the possibility of focal/specific effects and minimization of adverse events. Advances in drug delivery have mostly been based on biomaterials, such as liposomal and hybrid lipoidal vesicles, nanoemulsions, microneedling, and laser-assisted photosensitizer delivery systems. This review summarizes the most promising approaches to enhancing the photosensitizers’ transdermal delivery efficacy for the photodynamic treatment for cutaneous pre-cancerous lesions and skin cancers. Additionally, discussions on strategies and advantages in these approaches, as well as summarized challenges, perspectives, and translational potential for future applications, will be discussed.
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Affiliation(s)
- Isabella Portugal
- Programa de Pós-Graduação em Biotecnologia Industrial, Universidade Tiradentes, Aracaju 49032-490, Brazil; (I.P.); (S.J.); (P.S.)
| | - Sona Jain
- Programa de Pós-Graduação em Biotecnologia Industrial, Universidade Tiradentes, Aracaju 49032-490, Brazil; (I.P.); (S.J.); (P.S.)
| | - Patrícia Severino
- Programa de Pós-Graduação em Biotecnologia Industrial, Universidade Tiradentes, Aracaju 49032-490, Brazil; (I.P.); (S.J.); (P.S.)
| | - Ronny Priefer
- Massachusetts College of Pharmacy and Health Sciences, University, Boston, MA 02115, USA
- Correspondence:
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Teixeira R, Serra VV, Botequim D, Paulo PMR, Andrade SM, Costa SMB. Fluorescence Spectroscopy of Porphyrins and Phthalocyanines: Some Insights into Supramolecular Self-Assembly, Microencapsulation, and Imaging Microscopy. Molecules 2021; 26:4264. [PMID: 34299539 PMCID: PMC8306603 DOI: 10.3390/molecules26144264] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/06/2021] [Accepted: 07/10/2021] [Indexed: 11/17/2022] Open
Abstract
The molecular interactions of anionic tetrasulfonate phenyl porphyrin (TPPS) with poly(amido amine) (PAMAM) dendrimers of generation 2.0 and 4.0 (G2 and G4, respectively) forming H- or J-aggregates, as well as with human and bovine serum albumin proteins (HSA and BSA), were reviewed in the context of self-assembly molecular complementarity. The spectroscopic studies were extended to the association of aluminum phthtalocyanine (AlPCS4) detected with a PAMAM G4 dendrimer with fluorescence studies in both steady state and dynamic state, as well as due to the fluorescence quenching associated to electron-transfer with a distribution of lifetimes. The functionalization of TPPS with peripheral substituents enables the assignment of spontaneous pH-induced aggregates with different and well-defined morphologies. Other work reported in the literature, in particular with soft self-assembly materials, fall in the same area with particular interest for the environment. The microencapsulation of TPPS studies into polyelectrolyte capsules was developed quite recently and aroused much interest, which is well supported and complemented by the extensive data reported on the Imaging Microscopy section of the Luminescence of Porphyrins and Phthalocyanines included in the present review.
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Affiliation(s)
- Raquel Teixeira
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Vanda Vaz Serra
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - David Botequim
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Pedro M R Paulo
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Suzana M Andrade
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Sílvia M B Costa
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
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Hong SH, Koo MA, Lee MH, Seon GM, Park YJ, Jeong H, Kim D, Park JC. An effective method to generate controllable levels of ROS for the enhancement of HUVEC proliferation using a chlorin e6-immobilized PET film as a photo-functional biomaterial. Regen Biomater 2021; 8:rbab005. [PMID: 33738119 PMCID: PMC7955709 DOI: 10.1093/rb/rbab005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/29/2020] [Accepted: 01/14/2021] [Indexed: 12/20/2022] Open
Abstract
Reactive oxygen species (ROS) are byproducts of cellular metabolism; they play a significant role as secondary messengers in cell signaling. In cells, high concentrations of ROS induce apoptosis, senescence, and contact inhibition, while low concentrations of ROS result in angiogenesis, proliferation, and cytoskeleton remodeling. Thus, controlling ROS generation is an important factor in cell biology. We designed a chlorin e6 (Ce6)-immobilized polyethylene terephthalate (PET) film (Ce6-PET) to produce extracellular ROS under red-light irradiation. The application of Ce6-PET films can regulate the generation of ROS by altering the intensity of light-emitting diode sources. We confirmed that the Ce6-PET film could effectively promote cell growth under irradiation at 500 μW/cm2 for 30 min in human umbilical vein endothelial cells. We also found that the Ce6-PET film is more efficient in generating ROS than a Ce6-incorporated polyurethane film under the same conditions. Ce6-PET fabrication shows promise for improving the localized delivery of extracellular ROS and regulating ROS formation through the optimization of irradiation intensity.
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Affiliation(s)
- Seung Hee Hong
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project
| | - Min-Ah Koo
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project
| | - Mi Hee Lee
- Cellbiocontrol Laboratory, Department of Medical Engineering
| | - Gyeung Mi Seon
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project
| | - Ye Jin Park
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Device Engineering and Management, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
| | - HaKyeong Jeong
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Device Engineering and Management, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
| | - Dohyun Kim
- Cellbiocontrol Laboratory, Department of Medical Engineering
| | - Jong-Chul Park
- Cellbiocontrol Laboratory, Department of Medical Engineering
- Department of Medical Engineering, Graduate School of Medical Science, Brain Korea 21 Project
- Department of Medical Device Engineering and Management, Yonsei University, College of Medicine, Seoul 03722, Republic of Korea
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Ostańska E, Aebisher D, Bartusik-Aebisher D. The potential of photodynamic therapy in current breast cancer treatment methodologies. Biomed Pharmacother 2021; 137:111302. [PMID: 33517188 DOI: 10.1016/j.biopha.2021.111302] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 01/12/2021] [Accepted: 01/18/2021] [Indexed: 02/08/2023] Open
Abstract
Photodynamic Therapy (PDT) has been known for over a hundred years, and currently gaining in acceptance as an alternative cancer treatment. Light delivery is still a difficult problem in deep cancer treatment with PDT. Only near-infrared light in the 700-1100 nm range can penetrate deeply into the tissue because most tissue chromophores, including oxyhemoglobin, deoxyhemoglobin, melanin and fat, poorly absorb in the near infrared window. The light sources used in PDT are lasers, arc lamps, light-emitting diodes and fluorescent lamps. PDT has been used for many different clinical applications. PDT may be excellent alternative in the treatment and diagnosis of breast cancer compared to the conventional surgery, chemotherapy and radiotherapy. The basic elements of PDT are an appropriate photosensitizer (PS), oxygen, and light. The effectiveness of photodynamic therapy depends on the induction of photocytotoxic reactions, which are the result of light activation of PS), pre-administered to the body. The condition for initiating PDT processes is light absorption by PS and subsequent localized generation of cytotoxic reactive oxygen species. This study is a review of empirical research aimed at improving the therapy and diagnosis of breast cancer using PDT based on the physicochemical differences in healthy and diseased tissues and the tissues undergoing treatment.
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Affiliation(s)
| | - David Aebisher
- Department of Photomedicine and Physical Chemistry, Medical College of The University of Rzeszów, Rzeszów, Poland
| | - Dorota Bartusik-Aebisher
- Department of Biochemistry and General Chemistry, Medical College of The University of Rzeszów, Rzeszów, Poland.
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Akhter MH, Ahmad J, Javed MN, Haque R, Khalilullah H, Gupta M, Ali J. Porphyrin-Based Nanomaterials for Cancer Nanotheranostics. NANOTECHNOLOGY IN THE LIFE SCIENCES 2021:275-295. [DOI: 10.1007/978-3-030-74330-7_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
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Abstract
Cancer is a multifactorial disease that involves unique tumor microenvironment (TEM) and abnormal organs with complex structures.
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Affiliation(s)
- Zhengzou Fang
- Department of Pathogenic Microbiology and Immunology
- Southeast University School of Medicine
- Nanjing 210009
- People's Republic of China
| | - Yanfei Shen
- Medical School, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Chemistry and Chemical Engineering Southeast University
- People's Republic of China
| | - Daqing Gao
- Department of Pathogenic Microbiology and Immunology
- Southeast University School of Medicine
- Nanjing 210009
- People's Republic of China
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12
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Chlorin e6 embedded in phospholipid nanoparticles equipped with specific peptides: Interaction with tumor cells with different aminopeptidase N expression. Biomed Pharmacother 2020; 134:111154. [PMID: 33360931 DOI: 10.1016/j.biopha.2020.111154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/09/2020] [Accepted: 12/14/2020] [Indexed: 01/08/2023] Open
Abstract
A promising direction in Biopharmaceuticals is the development of specific peptide-based systems to improve drug delivery. This approach may increase tumor specificity and drug penetration into the target cell. Similar systems have been designed for several antitumor drugs. However, for photodynamic therapy drugs, such studies are not yet enough. Previously, we have developed a method of inclusion of chlorin e6 (Ce6), a photosensitizer used in photodynamic therapy, in phospholipid nanoparticles with a diameter of up to 30 nm, and reported an increase in its effectiveness in the experiments in vivo. In this work, we propose to modify a previously developed delivery system for Ce6 by the addition of cell-penetrating (R7) and/or targeting NGR peptides. The interaction of the compositions developed with HepG2 and MCF-7 tumor cells is shown. The expression of CD13 protein with affinity to NGR on the surface of these cells has been studied using flow cytometry. The expression of this protein on the HepG2 cells and its absence on MCF-7 was demonstrated. After incubation of tumor cells with the resulting Ce6 compositions, we evaluated the cellular accumulation, photoinduced, and dark cytotoxicity of the drugs. After irradiation, the highest level of cytotoxicity was observed when R7 peptide was added to the system, either alone or in combination with NGR. In addition to R7, the NGR-motif peptide increased the internalization of Ce6 in HepG2 cells without affecting its photodynamic activity. In this work we also discuss possible mechanisms of action of the cell-penetrating peptide when attached to phospholipid nanoparticles.
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Liu R, Gao Y, Liu N, Suo Y. Nanoparticles loading porphyrin sensitizers in improvement of photodynamic therapy for ovarian cancer. Photodiagnosis Photodyn Ther 2020; 33:102156. [PMID: 33352314 DOI: 10.1016/j.pdpdt.2020.102156] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/15/2020] [Accepted: 12/14/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Ovarian cancer, the malignant tumor with the highest mortality rate in gynecological tumors, leads to a poor prognosis due to tumor metastasis. At present, the main treatment for ovarian cancer is the combination of cytoreduction surgery and chemotherapy. But the surgery is insufficient to solve the extensive transfer of tumor in the abdominal cavity and a large proportion of ovarian cancer cases have shown resistance to chemotherapy. Photodynamic therapy (PDT) is a viable treatment option for a wide range of applications, especially in malignant tumors. Porphyrin sensitizers, as the most widely used photosensitive agents, have the following advantages: short photosensitive period and high singlet oxygen production. However, most studies have found that it is difficult to achieve high loading rates of photosensitive agents, thus effective concentration in target tissue is suboptimal and the lethal ability is greatly reduced. In this article, we review several studies that nanoparticles loading porphyrin sensitizers for photodynamic therapy of ovarian cancer. METHODS We collected relevant literature from PUBMED and reviewed their research content. RESULTS The application of nanotechnology to PDT in ovarian cancer can reduce the non-specific toxicity of photosensitive agents and increase stability and delivery efficiency. CONCLUSIONS The combination with nanotechnology can cover the shortcomings of photodynamic therapy, but the specific efficacy still needs a large number of experiments to prove.
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Affiliation(s)
- Rui Liu
- Obstetrics and Gynaecology, Shanxi Provincial Peoples Hospital, Taiyuan, China.
| | - Yanxia Gao
- Obstetrics and Gynaecology, Shanxi Provincial Peoples Hospital, Taiyuan, China.
| | - Nannan Liu
- Obstetrics and Gynaecology, Shanxi Provincial Peoples Hospital, Taiyuan, China.
| | - Yuping Suo
- Obstetrics and Gynaecology, Shanxi Provincial Peoples Hospital, Taiyuan, China.
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14
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Clement S, Campbell JM, Deng W, Guller A, Nisar S, Liu G, Wilson BC, Goldys EM. Mechanisms for Tuning Engineered Nanomaterials to Enhance Radiation Therapy of Cancer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2003584. [PMID: 33344143 PMCID: PMC7740107 DOI: 10.1002/advs.202003584] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Indexed: 05/12/2023]
Abstract
Engineered nanomaterials that produce reactive oxygen species on exposure to X- and gamma-rays used in radiation therapy offer promise of novel cancer treatment strategies. Similar to photodynamic therapy but suitable for large and deep tumors, this new approach where nanomaterials acting as sensitizing agents are combined with clinical radiation can be effective at well-tolerated low radiation doses. Suitably engineered nanomaterials can enhance cancer radiotherapy by increasing the tumor selectivity and decreasing side effects. Additionally, the nanomaterial platform offers therapeutically valuable functionalities, including molecular targeting, drug/gene delivery, and adaptive responses to trigger drug release. The potential of such nanomaterials to be combined with radiotherapy is widely recognized. In order for further breakthroughs to be made, and to facilitate clinical translation, the applicable principles and fundamentals should be articulated. This review focuses on mechanisms underpinning rational nanomaterial design to enhance radiation therapy, the understanding of which will enable novel ways to optimize its therapeutic efficacy. A roadmap for designing nanomaterials with optimized anticancer performance is also shown and the potential clinical significance and future translation are discussed.
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Affiliation(s)
- Sandhya Clement
- ARC Centre of Excellence for Nanoscale BiophotonicsThe Graduate School of Biomedical EngineeringUniversity of New South WalesHigh StreetKensingtonNew South Wales2052Australia
| | - Jared M. Campbell
- ARC Centre of Excellence for Nanoscale BiophotonicsThe Graduate School of Biomedical EngineeringUniversity of New South WalesHigh StreetKensingtonNew South Wales2052Australia
| | - Wei Deng
- ARC Centre of Excellence for Nanoscale BiophotonicsThe Graduate School of Biomedical EngineeringUniversity of New South WalesHigh StreetKensingtonNew South Wales2052Australia
| | - Anna Guller
- ARC Centre of Excellence for Nanoscale BiophotonicsThe Graduate School of Biomedical EngineeringUniversity of New South WalesHigh StreetKensingtonNew South Wales2052Australia
- Institute for Regenerative MedicineSechenov First Moscow State Medical University (Sechenov University)Trubetskaya StreetMoscow119991Russia
| | - Saadia Nisar
- ARC Centre of Excellence for Nanoscale BiophotonicsThe Graduate School of Biomedical EngineeringUniversity of New South WalesHigh StreetKensingtonNew South Wales2052Australia
| | - Guozhen Liu
- ARC Centre of Excellence for Nanoscale BiophotonicsThe Graduate School of Biomedical EngineeringUniversity of New South WalesHigh StreetKensingtonNew South Wales2052Australia
| | - Brian C. Wilson
- Department of Medical BiophysicsUniversity of Toronto/Princess Margaret Cancer CentreUniversity Health NetworkColledge StreetTorontoOntarioON M5G 2C1Canada
| | - Ewa M. Goldys
- ARC Centre of Excellence for Nanoscale BiophotonicsThe Graduate School of Biomedical EngineeringUniversity of New South WalesHigh StreetKensingtonNew South Wales2052Australia
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15
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De Silva P, Saad MA, Thomsen HC, Bano S, Ashraf S, Hasan T. Photodynamic therapy, priming and optical imaging: Potential co-conspirators in treatment design and optimization - a Thomas Dougherty Award for Excellence in PDT paper. J PORPHYR PHTHALOCYA 2020; 24:1320-1360. [PMID: 37425217 PMCID: PMC10327884 DOI: 10.1142/s1088424620300098] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Photodynamic therapy is a photochemistry-based approach, approved for the treatment of several malignant and non-malignant pathologies. It relies on the use of a non-toxic, light activatable chemical, photosensitizer, which preferentially accumulates in tissues/cells and, upon irradiation with the appropriate wavelength of light, confers cytotoxicity by generation of reactive molecular species. The preferential accumulation however is not universal and, depending on the anatomical site, the ratio of tumor to normal tissue may be reversed in favor of normal tissue. Under such circumstances, control of the volume of light illumination provides a second handle of selectivity. Singlet oxygen is the putative favorite reactive molecular species although other entities such as nitric oxide have been credibly implicated. Typically, most photosensitizers in current clinical use have a finite quantum yield of fluorescence which is exploited for surgery guidance and can also be incorporated for monitoring and treatment design. In addition, the photodynamic process alters the cellular, stromal, and/or vascular microenvironment transiently in a process termed photodynamic priming, making it more receptive to subsequent additional therapies including chemo- and immunotherapy. Thus, photodynamic priming may be considered as an enabling technology for the more commonly used frontline treatments. Recently, there has been an increase in the exploitation of the theranostic potential of photodynamic therapy in different preclinical and clinical settings with the use of new photosensitizer formulations and combinatorial therapeutic options. The emergence of nanomedicine has further added to the repertoire of photodynamic therapy's potential and the convergence and co-evolution of these two exciting tools is expected to push the barriers of smart therapies, where such optical approaches might have a special niche. This review provides a perspective on current status of photodynamic therapy in anti-cancer and anti-microbial therapies and it suggests how evolving technologies combined with photochemically-initiated molecular processes may be exploited to become co-conspirators in optimization of treatment outcomes. We also project, at least for the short term, the direction that this modality may be taking in the near future.
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Affiliation(s)
- Pushpamali De Silva
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Mohammad A. Saad
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Hanna C. Thomsen
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Shazia Bano
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Shoaib Ashraf
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
- Division of Health Sciences and Technology, Harvard University and Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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16
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Zhang H, Esquivel Guzman JA, Feng X, Rivera E, Lavertu M, Zhu X. Protoporphyrin IX copolymer with poly(ethylene glycol) methacrylate and its thermoresponsive properties. CAN J CHEM 2020. [DOI: 10.1139/cjc-2020-0009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Porphyrins and their derivatives have been widely used in catalysis, energy conversion, photonics, and biomedicine; however, their use in biological applications is restricted by their limited solubility in aqueous systems. We have prepared a water-soluble copolymer containing moieties of naturally occurring protoporphyrin IX using direct copolymerization of a poly(ethylene glycol) (PEG) methacrylate monomer with protoporphyrin IX via free-radical polymerization. The content of protoporphyrin IX in the copolymer was determined by 1H NMR and UV–vis absorption spectroscopies. Their solution properties and the photostability of the protoporphyrin IX moiety in the copolymer provide direct evidence of the covalent incorporation of protoporphyrin IX within the copolymer. The copolymer showed a reversible phase transition in aqueous solution due to the lower critical solution temperature (LCST). The phase transition temperature varies with the pH of the solutions because of the protonation of the carboxylic acid groups. This copolymer may be useful as an alternative thermoresponsive material for biomedical applications.
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Affiliation(s)
- Hu Zhang
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | | | - Xiantao Feng
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, México DF, México
| | - Marc Lavertu
- Département de génie chimique, Polytechnique Montréal, Montréal, QC H3T 1J4, Canada
| | - X.X. Zhu
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
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Zhang Y, Fang F, Li L, Zhang J. Self-Assembled Organic Nanomaterials for Drug Delivery, Bioimaging, and Cancer Therapy. ACS Biomater Sci Eng 2020; 6:4816-4833. [PMID: 33455214 DOI: 10.1021/acsbiomaterials.0c00883] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Over the past few decades, tremendous progress has been made in the development of engineering nanomaterials, which opened new horizons in the field of diagnosis and treatment of various diseases. In particular, self-assembled organic nanomaterials with intriguing features including delicate structure tailoring, facile processability, low cost, and excellent biocompatibility have shown outstanding potential in biomedical applications because of the enhanced permeability and retention (EPR) effect and multifunctional properties. In this review, we briefly introduce distinctive merits of self-assembled organic nanomaterials for biomedical applications. The main focus will be placed on summarizing recent advances in self-assembled organic nanomedicine for drug delivery, bioimaging, and cancer phototherapy, followed by highlighting a critical perspective on further development of self-assembled organic nanomaterials for future clinical translation. We believe that the above themes will appeal to researchers from different fields, including material, chemical, and biological sciences, as well as pharmaceutics.
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Affiliation(s)
- Yinfeng Zhang
- International Medical Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P. R. China
| | - Fang Fang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Sciences, Beijing Institute of Technology, Beijing 100811, P. R. China
| | - Li Li
- International Medical Center, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P. R. China
| | - Jinfeng Zhang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Sciences, Beijing Institute of Technology, Beijing 100811, P. R. China
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18
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Enzian P, Schell C, Link A, Malich C, Pries R, Wollenberg B, Rahmanzadeh R. Optically Controlled Drug Release from Light-Sensitive Liposomes with the New Photosensitizer 5,10-DiOH. Mol Pharm 2020; 17:2779-2788. [PMID: 32543848 DOI: 10.1021/acs.molpharmaceut.9b01173] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The delivery of therapeutic drugs to a specific cellular site is a challenge in the treatment of different diseases. Liposomes have been widely studied as vehicles for drug delivery, and recent research begins to show the potential of the light-controlled opening of liposomes. Liposomes with photoactive molecules can release their cargo upon light irradiation for localized drug release. Light as an external trigger can be controlled temporally and spatially with high precision. In this study, we investigate the potential of light-sensitive liposomes with four photosensitizers and two lipid formulations for light-induced release. To investigate the permeabilization of the liposomes, calcein was encapsulated in high concentration inside the liposomes so that the calcein fluorescence is quenched. If calcein is released from the liposome, quenching is avoided, and the fluorescence increases. We demonstrated that liposomes with the sensitizers benzoporphyrine derivative monoacid (BPD), chlorine e6 (Ce6), Al(III) phthalocyanine chloride disulfonic acid (AlPcS2), and 5,10-di-(4-hydroxyphenyl)-15,20-diphenyl-21,23H-porphyrin (5,10-DiOH) release cargo effectively after irradiation. Liposomes with 5,10-DiOH showed a quicker release compared to the other sensitizers upon irradiation at 420 nm. Further, we observed through fractionated irradiation, that most of the release took place during light application, while the permeability of the liposome decreased shortly after light exposure. This effect was stronger with liposomes containing less cholesterol.
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Affiliation(s)
- Paula Enzian
- Institute of Biomedical Optics, University of Lübeck, Peter-Monnik-Weg 4, 23562 Lübeck, Germany
| | - Christian Schell
- Por-Lab, Porphyrin-Laboratories GmbH, Blauenkrog 15, 23684 Scharbeutz, Germany
| | - Astrid Link
- Institute of Biomedical Optics, University of Lübeck, Peter-Monnik-Weg 4, 23562 Lübeck, Germany
| | - Carina Malich
- Institute of Biomedical Optics, University of Lübeck, Peter-Monnik-Weg 4, 23562 Lübeck, Germany
| | - Ralph Pries
- Department of Otorhinolaryngology, Clinic for ENT and HNS, University Hospital of Schleswig-Holstein, Campus Luübeck, Ratzeburger Allee 160, 23538 Luübeck, Germany
| | - Barbara Wollenberg
- Department of Otorhinolaryngology, Clinic for ENT and HNS, University Hospital of Schleswig-Holstein, Campus Luübeck, Ratzeburger Allee 160, 23538 Luübeck, Germany
| | - Ramtin Rahmanzadeh
- Institute of Biomedical Optics, University of Lübeck, Peter-Monnik-Weg 4, 23562 Lübeck, Germany
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19
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Satiya J, Schwartz I, Tabibian JH, Kumar V, Girotra M. Ablative therapies for hepatic and biliary tumors: endohepatology coming of age. Transl Gastroenterol Hepatol 2020; 5:15. [PMID: 32258519 DOI: 10.21037/tgh.2019.10.17] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 10/23/2019] [Indexed: 12/12/2022] Open
Abstract
Ablative therapies refer to minimally invasive procedures performed to destroy abnormal tissue that may arise with many conditions, and can be achieved clinically using chemical, thermal, and other techniques. In this review article, we explore the different ablative therapies used in the management of hepatic and biliary malignancies, namely hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCA), with a particular focus on radiofrequency ablation (RFA) and photodynamic therapy (PDT) techniques.
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Affiliation(s)
- Jinendra Satiya
- Internal Medicine, University of Miami/JFK Medical Center Palm Beach Regional GME Consortium, West Palm Beach, FL, USA
| | - Ingrid Schwartz
- Internal Medicine, University of Miami Miller School of Medicine/Jackson Memorial Hospital, Miami, FL, USA
| | - James H Tabibian
- Geffen School of Medicine, University of California, Los Angeles, CA, USA.,Division of Gastroenterology, Department of Medicine, Olive View-UCLA Medical Center, Sylmar, CA, USA
| | - Vivek Kumar
- Gastroenterology and Hepatology, UPMC Susquehanna, Williamsport, PA, USA
| | - Mohit Girotra
- Division of Gastroenterology and Hepatology, University of Miami Miller School of Medicine, Miami, FL, USA
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20
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Singh S, Aggarwal A, Bhupathiraju NDK, Jovanovic IR, Landress M, Tuz MP, Gao R, Drain CM. Comparing a thioglycosylated chlorin and phthalocyanine as potential theranostic agents. Bioorg Med Chem 2020; 28:115259. [DOI: 10.1016/j.bmc.2019.115259] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/28/2019] [Accepted: 12/07/2019] [Indexed: 12/24/2022]
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21
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Liang BJ, Pigula M, Baglo Y, Najafali D, Hasan T, Huang HC. Breaking the selectivity-uptake trade-off of photoimmunoconjugates with nanoliposomal irinotecan for synergistic multi-tier cancer targeting. J Nanobiotechnology 2020; 18:1. [PMID: 31898555 PMCID: PMC6939330 DOI: 10.1186/s12951-019-0560-5] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 12/12/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Photoimmunotherapy involves targeted delivery of photosensitizers via an antibody conjugate (i.e., photoimmunoconjugate, PIC) followed by light activation for selective tumor killing. The trade-off between PIC selectivity and PIC uptake is a major drawback limiting the efficacy of photoimmunotherapy. Despite ample evidence showing that photoimmunotherapy is most effective when combined with chemotherapy, the design of nanocarriers to co-deliver PICs and chemotherapy drugs remains an unmet need. To overcome these challenges, we developed a novel photoimmunoconjugate-nanoliposome (PIC-Nal) comprising of three clinically used agents: anti-epidermal growth factor receptor (anti-EGFR) monoclonal antibody cetuximab (Cet), benzoporphyrin derivative (BPD) photosensitizer, and irinotecan (IRI) chemotherapy. RESULTS The BPD photosensitizers were first tethered to Cet at a molar ratio of 6:1 using carbodiimide chemistry to form PICs. Conjugation of PICs onto nanoliposome irinotecan (Nal-IRI) was facilitated by copper-free click chemistry, which resulted in monodispersed PIC-Nal-IRI with an average size of 158.8 ± 15.6 nm. PIC-Nal-IRI is highly selective against EGFR-overexpressing epithelial ovarian cancer cells with 2- to 6-fold less accumulation in low EGFR expressing cells. Successful coupling of PIC onto Nal-IRI enhanced PIC uptake and photoimmunotherapy efficacy by up to 30% in OVCAR-5 cells. Furthermore, PIC-Nal-IRI synergistically reduced cancer viability via a unique three-way mechanism (i.e., EGFR downregulation, mitochondrial depolarization, and DNA damage). CONCLUSION It is increasingly evident that the most effective therapies for cancer will involve combination treatments that target multiple non-overlapping pathways while minimizing side effects. Nanotechnology combined with photochemistry provides a unique opportunity to simultaneously deliver and activate multiple drugs that target all major regions of a cancer cell-plasma membrane, cytoplasm, and nucleus. PIC-Nal-IRI offers a promising strategy to overcome the selectivity-uptake trade-off, improve photoimmunotherapy efficacy, and enable multi-tier cancer targeting. Controllable drug compartmentalization, easy surface modification, and high clinical relevance collectively make PIC-Nal-IRI extremely valuable and merits further investigations in living animals.
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Affiliation(s)
- Barry J Liang
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD, 20742, USA
| | - Michael Pigula
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
| | - Yan Baglo
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD, 20742, USA
| | - Daniel Najafali
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD, 20742, USA
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA
- Division of Health Sciences and Technology, Harvard University and Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Huang-Chiao Huang
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD, 20742, USA.
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02114, USA.
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
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22
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Beheshti A, Ghaffari S, Farahani H. Determination of Cholesterol and its Derivatives in Nanoliposomes as Drug Delivery Conveyances by HPLC-UV: A Simple, Accurate and Cost-Effective Method Development and Validation Approach. J Chromatogr Sci 2019; 57:469-475. [PMID: 30926982 DOI: 10.1093/chromsci/bmz021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 02/18/2019] [Accepted: 03/09/2019] [Indexed: 11/12/2022]
Abstract
Nanoliposomes are extensively used as ideal vehicles in drug delivery systems due to their unique biocompatibility and biodegradability properties. They can be used as sustained release and target selective conveyances to deliver the encapsulated drugs at specific cells or tissues by improving their efficacy along with reducing the side effects. As an analytical perspective, the determination of various lipid components in the final formulation is one of the practical issues while the agents are applied in an industrial-scale. Herein, the maximum ultra violet (UV) absorbances for the most of the lipids are within 200-210 nm that cause significant cut-off conflicts with the general solvents or additives of high-performance liquid chromatography (HPLC) during its method development procedure. In this study, a simple, accurate and cost-effective isocratic HPLC-UV method has been successfully developed for the simultaneous determination of α-(3-O-cholesteryloxy)-δ-(N-ethylmorpholine)-succineamide (MoChol), cholesteryl-hemisuccinate (Chems) and Cholesterol in nanoliposomes drug carriers containing an active pharmaceutical ingredient (anti-BCL-2 DNA oligonucleotide). The isocratic mobile phase consisted of ethanol/acetonitrile/water including trifluoroacetic acid (60/30/10 with 0.1% v/v, respectively) at a flow rate of 1.0 mL min-1 was run through a commercial reverse-phase C18 analytical column while UV detector was set at 202 nm. To confirm the applicability, a full validation of the proposed method was performed according to the International Council for Harmonization (ICH) guidelines.
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Affiliation(s)
- Abolghasem Beheshti
- Department of Chemistry, Payame Noor University, Tehran, Iran.,Research and Development Department, Quality Control Labs, Tofigh Daru Research and Engineering Co, Tehran, Iran
| | - Solmaz Ghaffari
- Research and Development Department, Quality Control Labs, Tofigh Daru Research and Engineering Co, Tehran, Iran.,Young Researchers and Elite Club, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran.,Department of Medical Nanotechnology, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran.,Pharmaceutical Science Research Center, Pharmaceutical Science Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Hadi Farahani
- Research Institute of Petroleum Industry (RIPI), Tehran, Iran
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23
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Ghosh S, Carter KA, Lovell JF. Liposomal formulations of photosensitizers. Biomaterials 2019; 218:119341. [PMID: 31336279 PMCID: PMC6663636 DOI: 10.1016/j.biomaterials.2019.119341] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 07/07/2019] [Accepted: 07/09/2019] [Indexed: 12/29/2022]
Abstract
Photodynamic therapy (PDT) is a clinical ablation modality to treat cancers and other diseases. PDT involves administration of a photosensitizer, followed by irradiation of target tissue with light. As many photosensitizers are small and hydrophobic, solubilization approaches and nanoscale delivery vehicles have been extensively explored. Liposomes and lipid-based formulations have been used for the past 30 years, and in some cases have been developed into well-defined commercial PDT products. This review provides an overview of common liposomal formulation strategies for photosensitizers for PDT and also photothermal therapy. Furthermore, research efforts have examined the impact of co-loading therapeutic cargo along with photosensitizers within liposomes. Additional recent approaches including imaging, overcoming hypoxia, upconversion and activatable liposomal formulations are discussed.
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Affiliation(s)
- Sanjana Ghosh
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Kevin A Carter
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA.
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24
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Abstract
The photodynamic reaction involves the light-induced generation of an excited state in a photosensitizer molecule (PS), which then results in the formation of reactive oxygen species in the presence of oxygen, or a direct modification of a cellular molecule. Most PSs are porphyrinoids, which are highly lipophilic, and are administered usually in liposomes to facilitate their effective delivery to target cells. The currently available liposomal formulations are Visudyne® and Fospeg®. Novel PSs were developed and tested for their photodynamic activity against cancer cells. Several compounds were highly phototoxic to oral cancer cells both in free and liposome-encapsulated form, with nanomolar IC50 values. The lowest IC50s (7-13 nM) were obtained with a PS encapsulated in cationic liposomes.
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25
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N’Diaye M, Vergnaud-Gauduchon J, Nicolas V, Faure V, Denis S, Abreu S, Chaminade P, Rosilio V. Hybrid Lipid Polymer Nanoparticles for Combined Chemo- and Photodynamic Therapy. Mol Pharm 2019; 16:4045-4058. [DOI: 10.1021/acs.molpharmaceut.9b00797] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Marline N’Diaye
- Institut Galien Paris Sud, UMR 8612, Univ Paris-Sud, CNRS, Université Paris-Saclay, 5 rue J.B. Clément, F-92290 Châtenay-Malabry, France
| | - Juliette Vergnaud-Gauduchon
- Institut Galien Paris Sud, UMR 8612, Univ Paris-Sud, CNRS, Université Paris-Saclay, 5 rue J.B. Clément, F-92290 Châtenay-Malabry, France
| | - Valérie Nicolas
- UMS IPSIT, Univ Paris-Sud, US 31 INSERM, UMS 3679 CNRS, Microscopy Facility, 92290 Châtenay-Malabry, France
| | - Victor Faure
- Institut Galien Paris Sud, UMR 8612, Univ Paris-Sud, CNRS, Université Paris-Saclay, 5 rue J.B. Clément, F-92290 Châtenay-Malabry, France
| | - Stéphanie Denis
- Institut Galien Paris Sud, UMR 8612, Univ Paris-Sud, CNRS, Université Paris-Saclay, 5 rue J.B. Clément, F-92290 Châtenay-Malabry, France
| | - Sonia Abreu
- Lip(Sys)2, Chimie Analytique Pharmaceutique, Univ Paris-Sud, Université Paris-Saclay, F-92290 Chistenay-Malabry Cedex, France
| | - Pierre Chaminade
- Lip(Sys)2, Chimie Analytique Pharmaceutique, Univ Paris-Sud, Université Paris-Saclay, F-92290 Chistenay-Malabry Cedex, France
| | - Véronique Rosilio
- Institut Galien Paris Sud, UMR 8612, Univ Paris-Sud, CNRS, Université Paris-Saclay, 5 rue J.B. Clément, F-92290 Châtenay-Malabry, France
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26
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Shah Z, Nazir S, Mazhar K, Abbasi R, Samokhvalov IM. PEGylated doped- and undoped-TiO 2 nanoparticles for photodynamic Therapy of cancers. Photodiagnosis Photodyn Ther 2019; 27:173-183. [PMID: 31136827 DOI: 10.1016/j.pdpdt.2019.05.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 04/14/2019] [Accepted: 05/17/2019] [Indexed: 12/12/2022]
Abstract
Titanium dioxide has been widely known for its phototoxicity in the environmental context, but little is known for its use in the photodynamic therapy of cancers. Previous studides have shown the hazardous effects of undoped-titanium dioxide nanoparticles (undoped-TiO2 NPs) in the ecosystem; however, it remains to explore the effect of polyethylene glycol (PEG) conjugation and doping of metal and non-metal on the photodynamic activity of TiO2. Here we report the synthesis, characterizations, and applications of doped- and undoped-TiO2 NPs stabilized by PEG in the photodynamic therapy of cancers. Our results demonstrate that in vitro PEG-NPs significantly reduced the survival of human cervical cancer cells (HeLa) upon solar and ultraviolet (UV) radiations. We found that doping of the metal (cobalt) and non-metal (nitrogen) onto TiO2 nanocrystals enhanced the photoactivation of doped-TiO2 NPs in the visible/near infrared (Vis/NIR) region, but these nanocrystals were revealed by cytotoxicity assays to be less potent in killing cancer cells compared to PEGylated undoped-TiO2. The significant photodynamic effect was shown by PEGylated undoped-TiO2 synthesized through the sol-gel method with 75% killing of HeLa cells at 5.5 μg/mL concentrations in exposure to UV or sunlight radiations. In vitro cytotoxicity was measured by Sulforhodamine B (SRB) and 3-(4, 5-Dimethylthiazol-2-Yl)-2,5-Diphenyltetrazolium Bromide (MTT) assays after irradiations with IR, UV, and sunlight for 15-30 minutes (min). All the synthesized NPs were characterized by XRD, AFM, SEM, EDX and DRS chemical analysis. Taken together, our data demonstrate that water-soluble PEGylated TiO2 NPs maybe a good candidate for the photodynamic therapy of cervical cancer cells. Our data propose that the use of PEG surfactant can enhance the potency of already available photochemical therpeutic agents.
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Affiliation(s)
- Zahir Shah
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; Key Laboratory of Regenerative Biology, Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou, 510530, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Samina Nazir
- College of Science, King Faisal University, Al-Ahsa, Saudi Arabia.
| | - Kehkashan Mazhar
- Institute of Biomedical & Genetic Engineering (IBGE), Sector G-9/1, Islamabad, Pakistan
| | - Rashda Abbasi
- Institute of Biomedical & Genetic Engineering (IBGE), Sector G-9/1, Islamabad, Pakistan
| | - Igor M Samokhvalov
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China; Key Laboratory of Regenerative Biology, Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou, 510530, China; University of Chinese Academy of Sciences, Beijing, 100049, China
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27
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Du B, Zhang W, Tung CH. Layer-by-layer construction of an oxygen-generating photo-responsive nanomedicine for enhanced photothermal and photodynamic combination therapy. Chem Commun (Camb) 2019; 55:5926-5929. [DOI: 10.1039/c9cc01461f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A multi-layered nanomedicine was designed for synergized oxygen-enhanced photodynamic therapy and photothermal therapy.
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Affiliation(s)
- Baoji Du
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine
- USA
| | - Weiqi Zhang
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine
- USA
| | - Ching-Hsuan Tung
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine
- USA
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28
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Massiot J, Rosilio V, Makky A. Photo-triggerable liposomal drug delivery systems: from simple porphyrin insertion in the lipid bilayer towards supramolecular assemblies of lipid–porphyrin conjugates. J Mater Chem B 2019; 7:1805-1823. [DOI: 10.1039/c9tb00015a] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Light-responsive liposomes are considered nowadays as one of the most promising nanoparticulate systems for the delivery and release of an active pharmaceutical ingredient (API) in a spatio-temporal manner.
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Affiliation(s)
- Julien Massiot
- Institut Galien Paris Sud
- Univ Paris-Sud
- CNRS
- Université Paris-Saclay
- 92296 Châtenay-Malabry
| | - Véronique Rosilio
- Institut Galien Paris Sud
- Univ Paris-Sud
- CNRS
- Université Paris-Saclay
- 92296 Châtenay-Malabry
| | - Ali Makky
- Institut Galien Paris Sud
- Univ Paris-Sud
- CNRS
- Université Paris-Saclay
- 92296 Châtenay-Malabry
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29
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Massiot J, Rosilio V, Ibrahim N, Yamamoto A, Nicolas V, Konovalov O, Tanaka M, Makky A. Newly Synthesized Lipid-Porphyrin Conjugates: Evaluation of Their Self-Assembling Properties, Their Miscibility with Phospholipids and Their Photodynamic Activity In Vitro. Chemistry 2018; 24:19179-19194. [PMID: 30362192 DOI: 10.1002/chem.201804865] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 10/23/2018] [Indexed: 01/19/2023]
Abstract
Lipid-porphyrin conjugates are considered nowadays as promising building blocks for the conception of supramolecular structures with multifunctional properties, required for efficient cancer therapy by photodynamic therapy (PDT). The synthesis of two new lipid-porphyrin conjugates coupling pheophorbide-a (Pheo-a), a photosensitizer derived from chlorophyll-a, to either chemically modified lyso-phosphatidylcholine (PhLPC) or egg lyso-sphingomyelin (PhLSM) is reported. The impact of the lipid backbone of these conjugates on their self-assembling properties, as well as on their physicochemical properties, including interfacial behavior at the air/buffer interface, fluorescence and absorption properties, thermotropic behavior, and incorporation rate in the membrane of liposomes were studied. Finally, their photodynamic activity was evaluated on esophageal squamous cell carcinoma (ESCC) and normal esophageal squamous epithelium cell lines. The liposome-like vesicles resulting from self-assembly of the pure conjugates were unstable and turned into aggregates with undefined structure within few days. However, both lipid-porphyrin conjugates could be efficiently incorporated in lipid vesicles, with higher loading rates than unconjugated Pheo-a. Interestingly, phototoxicity tests of free and liposome-incorporated lipid-porphyrin conjugates demonstrated a better selectivity in vitro to esophageal squamous cell carcinoma relative to normal cells.
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Affiliation(s)
- Julien Massiot
- Institut Galien Paris Sud, Univ Paris-Sud, CNRS, Université Paris-Saclay, 92296, Châtenay-Malabry, France
| | - Véronique Rosilio
- Institut Galien Paris Sud, Univ Paris-Sud, CNRS, Université Paris-Saclay, 92296, Châtenay-Malabry, France
| | - Nada Ibrahim
- Institut Galien Paris Sud, Univ Paris-Sud, CNRS, Université Paris-Saclay, 92296, Châtenay-Malabry, France
| | - Akihisa Yamamoto
- Center for Integrative Medicine and Physics, Institute for Advanced Study, Kyoto University, 606-8501, Kyoto, Japan
| | - Valérie Nicolas
- UMS IPSIT, Univ Paris-Sud, US 31 INSERM, UMS 3679 CNRS, 92290, Châtenay-Malabry, France
| | - Oleg Konovalov
- European Synchrotron Radiation Facility (ESRF), Grenoble Cedex 9, 38053, France
| | - Motomu Tanaka
- Center for Integrative Medicine and Physics, Institute for Advanced Study, Kyoto University, 606-8501, Kyoto, Japan.,Physical Chemistry of Biosystems, Physical Chemistry Institute, University of Heidelberg, 69120, Heidelberg, Germany
| | - Ali Makky
- Institut Galien Paris Sud, Univ Paris-Sud, CNRS, Université Paris-Saclay, 92296, Châtenay-Malabry, France
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30
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Feng Q, Wang J, Song H, Zhuo LG, Wang G, Liao W, Feng Y, Wei H, Chen Y, Yang Y, Yang X. Uptake and light-induced cytotoxicity of hyaluronic acid-grafted liposomes containing porphyrin in tumor cells. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.06.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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31
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Q Mesquita M, J Dias C, P M S Neves MG, Almeida A, F Faustino MA. Revisiting Current Photoactive Materials for Antimicrobial Photodynamic Therapy. Molecules 2018; 23:E2424. [PMID: 30248888 PMCID: PMC6222430 DOI: 10.3390/molecules23102424] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/14/2018] [Accepted: 09/18/2018] [Indexed: 12/22/2022] Open
Abstract
Microbial infection is a severe concern, requiring the use of significant amounts of antimicrobials/biocides, not only in the hospital setting, but also in other environments. The increasing use of antimicrobial drugs and the rapid adaptability of microorganisms to these agents, have contributed to a sharp increase of antimicrobial resistance. It is obvious that the development of new strategies to combat planktonic and biofilm-embedded microorganisms is required. Photodynamic inactivation (PDI) is being recognized as an effective method to inactivate a broad spectrum of microorganisms, including those resistant to conventional antimicrobials. In the last few years, the development and biological assessment of new photosensitizers for PDI were accompanied by their immobilization in different supports having in mind the extension of the photodynamic principle to new applications, such as the disinfection of blood, water, and surfaces. In this review, we intended to cover a significant amount of recent work considering a diversity of photosensitizers and supports to achieve an effective photoinactivation. Special attention is devoted to the chemistry behind the preparation of the photomaterials by recurring to extensive examples, illustrating the design strategies. Additionally, we highlighted the biological challenges of each formulation expecting that the compiled information could motivate the development of other effective photoactive materials.
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Affiliation(s)
- Mariana Q Mesquita
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
- Department of Biomedical Sciences and iBiMED, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Cristina J Dias
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Maria G P M S Neves
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Adelaide Almeida
- Department of Biology CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Amparo F Faustino
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
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32
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Kwiatkowski S, Knap B, Przystupski D, Saczko J, Kędzierska E, Knap-Czop K, Kotlińska J, Michel O, Kotowski K, Kulbacka J. Photodynamic therapy - mechanisms, photosensitizers and combinations. Biomed Pharmacother 2018; 106:1098-1107. [PMID: 30119176 DOI: 10.1016/j.biopha.2018.07.049] [Citation(s) in RCA: 1013] [Impact Index Per Article: 168.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/07/2018] [Accepted: 07/08/2018] [Indexed: 12/13/2022] Open
Abstract
Photodynamic therapy (PDT) is a modern and non-invasive form of therapy, used in the treatment of non-oncological diseases as well as cancers of various types and locations. It is based on the local or systemic application of a photosensitive compound - the photosensitizer, which is accumulated in pathological tissues. The photosensitizer molecules absorb the light of the appropriate wavelength, initiating the activation processes leading to the selective destruction of the inappropriate cells. The photocytotoxic reactions occur only within the pathological tissues, in the area of photosensitizer distribution, enabling selective destruction. Over the last decade, a significant acceleration in the development of nanotechnology has been observed. The combination of photosensitizers with nanomaterials can improve the photodynamic therapy efficiency and eliminate its side effects as well. The use of nanoparticles enables achievement a targeted method which is focused on specific receptors, and, as a result, increases the selectivity of the photodynamic therapy. The object of this review is the anticancer application of PDT, its advantages and possible modifications to potentiate its effects.
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Affiliation(s)
- Stanisław Kwiatkowski
- Faculty of Medicine, Wroclaw Medical University, J. Mikulicza-Radeckiego 5, 50-345, Wroclaw, Poland
| | - Bartosz Knap
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4a, 20-093, Lublin, Poland
| | - Dawid Przystupski
- Faculty of Medicine, Wroclaw Medical University, J. Mikulicza-Radeckiego 5, 50-345, Wroclaw, Poland
| | - Jolanta Saczko
- Department of Medical Biochemistry, Wroclaw Medical University, Chalubinskiego 10, 50-368, Wroclaw, Poland; Department of Molecular and Cellular Biology, Wroclaw Medical University, Borowska 211A, 50-556, Wroclaw, Poland
| | - Ewa Kędzierska
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4a, 20-093, Lublin, Poland
| | - Karolina Knap-Czop
- Department of Clinical Genetics, Medical University of Lublin, Radziwillowska 11, 20-080, Lublin, Poland
| | - Jolanta Kotlińska
- Chair and Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodzki 4a, 20-093, Lublin, Poland
| | - Olga Michel
- Department of Medical Biochemistry, Wroclaw Medical University, Chalubinskiego 10, 50-368, Wroclaw, Poland
| | - Krzysztof Kotowski
- Faculty of Medicine, Wroclaw Medical University, J. Mikulicza-Radeckiego 5, 50-345, Wroclaw, Poland
| | - Julita Kulbacka
- Department of Medical Biochemistry, Wroclaw Medical University, Chalubinskiego 10, 50-368, Wroclaw, Poland; Department of Molecular and Cellular Biology, Wroclaw Medical University, Borowska 211A, 50-556, Wroclaw, Poland.
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33
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Mesquita MQ, Dias CJ, Gamelas S, Fardilha M, Neves MGPMS, Faustino MAF. An insight on the role of photosensitizer nanocarriers for Photodynamic Therapy. AN ACAD BRAS CIENC 2018; 90:1101-1130. [PMID: 29873674 DOI: 10.1590/0001-3765201720170800] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 11/19/2017] [Indexed: 12/21/2022] Open
Abstract
Photodynamic therapy (PDT) is a modality of cancer treatment in which tumor cells are destroyed by reactive oxygen species (ROS) produced by photosensitizers following its activation with visible or near infrared light. The PDT success is dependent on different factors namely on the efficiency of the photosensitizer deliver and targeting ability. In this review a special attention will be given to the role of some drug delivery systems to improve the efficiency of tetrapyrrolic photosensitizers to this type of treatment.
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Affiliation(s)
- Mariana Q Mesquita
- Department of Chemistry and QOPNA, University of Aveiro, Aveiro, Portugal
| | - Cristina J Dias
- Department of Chemistry and QOPNA, University of Aveiro, Aveiro, Portugal
| | - Sara Gamelas
- Department of Chemistry and QOPNA, University of Aveiro, Aveiro, Portugal
| | - Margarida Fardilha
- Department of Biomedical Sciences, University of Aveiro, Aveiro, Portugal
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34
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Belali S, Savoie H, O'Brien JM, Cafolla AA, O'Connell B, Karimi AR, Boyle RW, Senge MO. Synthesis and Characterization of Temperature-Sensitive and Chemically Cross-Linked Poly( N-isopropylacrylamide)/Photosensitizer Hydrogels for Applications in Photodynamic Therapy. Biomacromolecules 2018; 19:1592-1601. [PMID: 29596749 DOI: 10.1021/acs.biomac.8b00293] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A novel poly( N-isopropylacrylamide) (PNIPAM) hydrogel containing different photosensitizers (protoporphyrin IX (PpIX), pheophorbide a (Pba), and protoporphyrin IX dimethyl ester (PpIX-DME)) has been synthesized with a significant improvement in water solubility and potential for PDT applications compared to the individual photosensitizers (PSs). Conjugation of PpIX, Pba, and PpIX-DME to the poly( N-isopropylacrylamide) chain was achieved using the dispersion polymerization method. This study describes how the use of nanohydrogel structures to deliver a photosensitizer with low water solubility and high aggregation tendencies in polar solvents overcomes these limitations. FT-IR spectroscopy, UV-vis spectroscopy, 1H NMR, fluorescence spectroscopy, SEM, and DLS analysis were used to characterize the PNIPAM-photosensitizer nanohydrogels. Spectroscopic studies indicate that the PpIX, Pba, and PpIX-DME photosensitizers are covalently conjugated to the polymer chains, which prevents aggregation and thus allows significant singlet oxygen production upon illumination. Likewise, the lower critical solution temperature was raised to ∼44 °C in the new PNIPAM-PS hydrogels. The PNIPAM hydrogels are biocompatible with >90% cell viability even at high concentrations of the photosensitizer in vitro. Furthermore, a very sharp onset of light-dependent toxicity for the PpIX-based nanohydrogel in the nanomolar range and a more modest, but significant, photocytotoxic response for Pba-PNIPAM and PpIX-DME-PNIPAM nanohydrogels suggest that the new hydrogels have potential for applications in photodynamic therapy.
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Affiliation(s)
- Simin Belali
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Science Institute , Trinity College Dublin, the University of Dublin , 152-160 Pearse Street , Dublin 2 , Ireland.,Department of Chemistry, Faculty of Science , Arak University , Arak 38156-8-8349 , Iran
| | - Huguette Savoie
- Department of Chemistry , University of Hull , Cottingham Road , Kingston-upon-Hull HU6 7RX , United Kingdom
| | - Jessica M O'Brien
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Science Institute , Trinity College Dublin, the University of Dublin , 152-160 Pearse Street , Dublin 2 , Ireland
| | | | | | - Ali Reza Karimi
- Department of Chemistry, Faculty of Science , Arak University , Arak 38156-8-8349 , Iran
| | - Ross W Boyle
- Department of Chemistry , University of Hull , Cottingham Road , Kingston-upon-Hull HU6 7RX , United Kingdom
| | - Mathias O Senge
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Science Institute , Trinity College Dublin, the University of Dublin , 152-160 Pearse Street , Dublin 2 , Ireland.,Medicinal Chemistry, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences , Trinity College Dublin, the University of Dublin, St. James's Hospital , Dublin 8 , Ireland
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35
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Skupin-Mrugalska P, Szczolko W, Gierlich P, Konopka K, Goslinski T, Mielcarek J, Düzgüneş N. Physicochemical properties of liposome-incorporated 2-(morpholin-4-yl)ethoxy phthalocyanines and their photodynamic activity against oral cancer cells. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.12.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Majumder M, Goswami T, Misra A. Multifunctional Magnetic Materials of Organic Origin for Biomedical Applications: A Theoretical Study. ChemistrySelect 2018. [DOI: 10.1002/slct.201702530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Manoj Majumder
- Department of ChemistryUniversity of North Bengal Darjeeling 734013, West Bengal India
| | - Tamal Goswami
- Department of ChemistryUniversity of North Bengal Darjeeling 734013, West Bengal India
| | - Anirban Misra
- Department of ChemistryUniversity of North Bengal Darjeeling 734013, West Bengal India
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37
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Kostryukova LV, Prozorovskiy VN, Medvedeva NV, Ipatova OM. Comparison of a new nanoform of the photosensitizer chlorin e6, based on plant phospholipids, with its free form. FEBS Open Bio 2018; 8:201-210. [PMID: 29435410 PMCID: PMC5794465 DOI: 10.1002/2211-5463.12359] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 11/15/2017] [Accepted: 11/22/2017] [Indexed: 01/03/2023] Open
Abstract
Photodynamic therapy is an advanced method of treating cancer and various benign diseases, including infections. It uses light-activated molecules [photosensitizers (PSs)] to generate reactive oxygen species (ROS) when irradiated with light of a specific wavelength. This study examined the photophysical and photosensitizing activity of the PS chlorin e6 incorporated in a delivery system based on plant phospholipids. This new nanoform of chlorin e6 comprised particles with a diameter of 18.4 ± 2.5 nm and zeta potential of -34.6 ± 3.0 mV. Incorporation of chlorin e6 in phospholipid nanoparticles was observed to cause a bathochromic shift of Q-band absorption maximum by 14 nm without an absorption change in the range of the Soret band. Fluorescence intensity of chlorin e6 embedded in the phospholipid nanoparticles increased 1.7-fold. Chlorin e6 in phospholipid nanoparticles, when irradiated, was able to generate ROS as shown by oxidation of polyunsaturated fatty acids of the phospholipid matrix of the delivery system and reduced l-glutathione. In vivo it was demonstrated that the new nanoform of chlorin e6 provides more accumulation of PSs in tumor tissue than its free form. Moreover, its accumulation in the skin was lower and its elimination from the skin almost five times faster than when administered in free form. The observed differences of this new nanoform of chlorin e6 should lead to enhancement of antitumor efficacy and a decrease in phototoxicity.
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38
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Kato A, Kataoka H, Yano S, Hayashi K, Hayashi N, Tanaka M, Naitoh I, Ban T, Miyabe K, Kondo H, Yoshida M, Fujita Y, Hori Y, Natsume M, Murakami T, Narumi A, Nomoto A, Naiki-Ito A, Takahashi S, Joh T. Maltotriose Conjugation to a Chlorin Derivative Enhances the Antitumor Effects of Photodynamic Therapy in Peritoneal Dissemination of Pancreatic Cancer. Mol Cancer Ther 2017; 16:1124-1132. [PMID: 28292934 DOI: 10.1158/1535-7163.mct-16-0670] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/29/2016] [Accepted: 03/08/2017] [Indexed: 11/16/2022]
Abstract
Peritoneal dissemination is a major clinical issue associated with dismal prognosis and poor quality of life for patients with pancreatic cancer; however, no effective treatment strategies have been established. Herein, we evaluated the effects of photodynamic therapy (PDT) with maltotriose-conjugated chlorin (Mal3-chlorin) in culture and in a peritoneal disseminated mice model of pancreatic cancer. The Mal3-chlorin was prepared as a water-soluble chlorin derivative conjugated with four Mal3 molecules to improve cancer selectivity. In vitro, Mal3-chlorin showed superior uptake into pancreatic cancer cells compared with talaporfin, which is clinically used. Moreover, the strong cytotoxic effects of PDT with Mal3-chlorin occurred via apoptosis and reactive oxygen species generation, whereas Mal3-chlorin alone did not cause any cytotoxicity in pancreatic cancer cells. Notably, using a peritoneal disseminated mice model, we demonstrated that Mal3-chlorin accumulated in xenograft tumors and suppressed both tumor growth and ascites formation with PDT. Furthermore, PDT with Mal3-chlorin induced robust apoptosis in peritoneal disseminated tumors, as indicated by immunohistochemistry. Taken together, these findings implicate Mal3-chlorin as a potential next-generation photosensitizer for PDT and the basis of a new strategy for managing peritoneal dissemination of pancreatic cancer. Mol Cancer Ther; 16(6); 1124-32. ©2017 AACR.
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Affiliation(s)
- Akihisa Kato
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiromi Kataoka
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
| | - Shigenobu Yano
- Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara, Japan
| | - Kazuki Hayashi
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Noriyuki Hayashi
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Mamoru Tanaka
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Itaru Naitoh
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Tesshin Ban
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Katsuyuki Miyabe
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiromu Kondo
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Michihiro Yoshida
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yasuaki Fujita
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yasuki Hori
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Makoto Natsume
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takashi Murakami
- Laboratory of Tumor Biology, Takasaki University of Health and Welfare, Takasaki, Japan
| | - Atsushi Narumi
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, Yonezawa, Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Osaka, Japan
| | - Aya Naiki-Ito
- Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Satoru Takahashi
- Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takashi Joh
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Chang JE, Cho HJ, Jheon S. Anticancer Efficacy of Photodynamic Therapy with Lung Cancer-Targeted Nanoparticles. J Vis Exp 2016. [PMID: 27929475 DOI: 10.3791/54865] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Photodynamic therapy (PDT) is a non-invasive and non-surgical method representing an attractive alternative choice for lung cancer treatment. Photosensitizers selectively accumulate in tumor tissue and lead to tumor cell death in the presence of oxygen and the proper wavelength of light. To increase the therapeutic effect of PDT, we developed both photosensitizer- and anticancer agent-loaded lung cancer-targeted nanoparticles. Both enhanced permeability and retention (EPR) effect-based passive targeting and hyaluronic-acid-CD44 interaction-based active targeting were applied. CD44 is a well-known hyaluronic acid receptor that is often introduced as a biomarker of non-small cell lung cancer. In addition, a combination of PDT and chemotherapy is adopted in the present study. This combination concept may increase anticancer therapeutic effects and reduce adverse reactions. We chose hypocrellin B (HB) as a novel photosensitizer in this study. It has been reported that HB causes higher anticancer efficacy of PDT compared to hematoporphyrin derivatives1. Paclitaxel was selected as the anticancer drug since it has proven to be a potential treatment for lung cancer2. The antitumor efficacies of photosensitizer (HB) solution, photosensitizer encapsulated hyaluronic acid-ceramide nanoparticles (HB-NPs), and both photosensitizer- and anticancer agent (paclitaxel)-encapsulated hyaluronic acid-ceramide nanoparticles (HB-P-NPs) after PDT were compared both in vitro and in vivo. The in vitro phototoxicity in A549 (human lung adenocarcinoma) cells and the in vivo antitumor efficacy in A549 tumor-bearing mice were evaluated. The HB-P-NP treatment group showed the most effective anticancer effect after PDT. In conclusion, the HB-P-NPs prepared in the present study represent a potential and novel photosensitizer delivery system in treating lung cancer with PDT.
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Affiliation(s)
- Ji-Eun Chang
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Bundang Hospital
| | | | - Sanghoon Jheon
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Bundang Hospital; Department of Thoracic and Cardiovascular Surgery, Seoul National University College of Medicine;
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A Targeted Nanoprobe Based on Carbon Nanotubes-Natural Biopolymer Chitosan Composites. NANOMATERIALS 2016; 6:nano6110216. [PMID: 28335344 PMCID: PMC5245750 DOI: 10.3390/nano6110216] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/08/2016] [Accepted: 11/09/2016] [Indexed: 12/25/2022]
Abstract
A novel targeting theranostic nanoprobe based on single-walled carbon nanotubes (SWCNTs)-natural biopolymer chitosan composites was developed for cancer cell targeting imaging and fluorescence imaging-guided photodynamic therapy. First, chitosan was respectively conjugated with a tumor-homing molecule folic acid, or a photosensitizing drug pyropheophorbide a using a water-soluble carbodiimide coupling chemistry. Chitosan was fluorescently labeled by fluorescein isothiocyanate via the covalently linkage of the isothiocyanate group with the amino group. Second, SWCNTs were sonicated in the functional chitosan aqueous solution for 6 h at room temperature in order to obtain the nanoprobe (PPa/FITC-SWCNT-FA). The as-prepared nanoprobe has been characterized with transmission electron microscope, confocal microscopy, and cell cytotoxicity tests. Chitosan was decorated onto SWCNTs resulting in the water-dispersible PPa/FITC-SWCNT-FA, and can be selectively transported inside folate receptor-positive tumor cell with good targeting imaging. PPa/FITC-SWCNT-FA exhibited low dark toxicity about 7%–13%, and high phototoxicity about 60%–74% against HeLa cells upon a 635 nm laser irradiation, indicating satisfying biocompatibility and antitumor activity. These results suggest the study could offer a feasible alternative to presently available nanoparticle-based theranostic agents.
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Feng X, Jiang D, Kang T, Yao J, Jing Y, Jiang T, Feng J, Zhu Q, Song Q, Dong N, Gao X, Chen J. Tumor-Homing and Penetrating Peptide-Functionalized Photosensitizer-Conjugated PEG-PLA Nanoparticles for Chemo-Photodynamic Combination Therapy of Drug-Resistant Cancer. ACS APPLIED MATERIALS & INTERFACES 2016; 8:17817-17832. [PMID: 27332148 DOI: 10.1021/acsami.6b04442] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The combination of photodynamic therapy (PDT) and chemotherapy holds great potential in combating drug-resistant cancers. However, the major challenge that lies ahead is how to achieve high coloading capacity for both photosensitizer and chemo-drugs and how to gain efficient delivery of drugs to the drug-resistant tumors. In this study, we prepared a nanovehicle for codelivery of photosensitizer (pyropheophorbide-a, PPa) and chemo-drugs (paclitaxel, PTX) based on the synthesis of PPa-conjugated amphiphilic copolymer PPa-PLA-PEG-PLA-PPa. The obtained nanoparticles (PP NP) exhibited a satisfactory high drug-loading capacity for both drugs. To achieve effective tumor-targeting therapy, the surface of PP NP was decorated with a tumor-homing and penetrating peptide F3. In vitro cellular experiments showed that F3-functionalized PP NP (F3-PP NP) exhibited higher cellular association than PP NP and resulted in the strongest antiproliferation effect. In addition, compared with the unmodified nanoparticles, F3-PP NP exhibited a more preferential enrichment at the tumor site. Pharmacodynamics evaluation in vivo demonstrated that a longer survival time was achieved by the tumor-bearing mice treated with PP NP (+laser) than those treated with chemotherapy only or PDT only. Such antitumor efficacy of combination therapy was further improved following the F3 peptide functionalization. Collectively, these results suggested that targeted combination therapy may pave a promising way for the therapy of drug-resistant tumor.
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Affiliation(s)
- Xingye Feng
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University , 826 Zhangheng Road, Shanghai 201203, P. R. China
| | - Di Jiang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University , 826 Zhangheng Road, Shanghai 201203, P. R. China
| | - Ting Kang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University , 826 Zhangheng Road, Shanghai 201203, P. R. China
| | - Jianhui Yao
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University , 826 Zhangheng Road, Shanghai 201203, P. R. China
| | - Yixian Jing
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University , 826 Zhangheng Road, Shanghai 201203, P. R. China
| | - Tianze Jiang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University , 826 Zhangheng Road, Shanghai 201203, P. R. China
| | - Jingxian Feng
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University , 826 Zhangheng Road, Shanghai 201203, P. R. China
| | - Qianqian Zhu
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University , 826 Zhangheng Road, Shanghai 201203, P. R. China
| | - Qingxiang Song
- Department of Pharmacology, Institute of Medical Sciences, Shanghai Jiaotong University School of Medicine , 280 South Chongqing Road, Shanghai 200025, P. R. China
| | - Nan Dong
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University , 826 Zhangheng Road, Shanghai 201203, P. R. China
| | - Xiaoling Gao
- Department of Pharmacology, Institute of Medical Sciences, Shanghai Jiaotong University School of Medicine , 280 South Chongqing Road, Shanghai 200025, P. R. China
| | - Jun Chen
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University , 826 Zhangheng Road, Shanghai 201203, P. R. China
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Zhou Y, Liang X, Dai Z. Porphyrin-loaded nanoparticles for cancer theranostics. NANOSCALE 2016; 8:12394-12405. [PMID: 26730838 DOI: 10.1039/c5nr07849k] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Porphyrins have been used as pioneering theranostic agents not only for the photodynamic therapy, sonodynamic therapy and radiotherapy of cancer, but also for diagnostic fluorescence imaging, magnetic resonance imaging and photoacoustic imaging. A variety of porphyrins have been developed but very few of them have actually been employed in clinical trials due to their poor selectivity to tumorous tissue and high accumulation rates in the skin. In addition, most porphyrin molecules are hydrophobic and form aggregates in aqueous media. Nevertheless, the use of nanoparticles as porphyrin carriers shows great promise to overcome these shortcomings. Encapsulating or attaching porphyrins to nanoparticles makes them more suitable for tissue delivery because we can create materials with a conveniently specific tissue lifetime, specific targeting, immune tolerance, and hydrophilicity as well as other characteristics through rational design. In addition, various functional components (e.g. for targeting, imaging or therapeutic functions) can be easily introduced into a single nanoparticle platform for cancer theranostics. This review presents the current state of knowledge on porphyrin-loaded nanoparticles for the interwined imaging and therapy of cancer. The future trends and limitations of prophyrin-loaded nanoparticles are also outlined.
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Affiliation(s)
- Yiming Zhou
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China.
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Vimaladevi M, Divya KC, Girigoswami A. Liposomal nanoformulations of rhodamine for targeted photodynamic inactivation of multidrug resistant gram negative bacteria in sewage treatment plant. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 162:146-152. [PMID: 27371913 DOI: 10.1016/j.jphotobiol.2016.06.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 06/20/2016] [Indexed: 12/24/2022]
Abstract
The antimicrobial photodynamic therapy is an alternative method for killing bacterial cells in view of the rising problem of antibiotic resistance microorganisms. The present study examined the effect of a water soluble photosensitizer, Rhodamine 6G (R6G) in stealth liposomes on multidrug resistant Pseudomonas aeruginosa in the presence of visible light. Liposomes were prepared with cholesterol and phospholipids that extracted from hen eggs in a cost effective way and characterized by light microscopy, particle size analyzer, electron microscopy, steady state spectrophotometry and spectrofluorometry. The photoefficacies of R6G in polymer encapsulated liposomes and positively charged liposomes are much higher compared to the free R6G (R6G in water) in terms of singlet oxygen quantum yield. This high potential of producing more reactive oxygen species (ROS) by liposomal nanoformulated R6G leads to efficient photodynamic inactivation of multidrug resistant gram negative bacteria in waste water. Though the singlet oxygen quantum yield of polymer coated liposomal R6G was higher than the cationic liposomal formulation, a faster decrease in bacterial survival was observed for positively charged liposomal R6G treated bacteria due to electrostatic charge interactions. Therefore, it can be concluded that the positively charged liposomal nanoformulations of laser dyes are efficient for photodynamic inactivation of multiple drug resistant gram negative microorganisms.
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Affiliation(s)
- Mohan Vimaladevi
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research & Education (CARE), Kelambakkam, Chennai 603 103, India; Biological Materials Laboratory, Central Leather Research Institute (CLRI), Adyar, Chennai 600 020, India
| | - Kurunchi Chellapathi Divya
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research & Education (CARE), Kelambakkam, Chennai 603 103, India
| | - Agnishwar Girigoswami
- Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research & Education (CARE), Kelambakkam, Chennai 603 103, India.
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Seidl C, Ungelenk J, Zittel E, Bergfeldt T, Sleeman JP, Schepers U, Feldmann C. Tin Tungstate Nanoparticles: A Photosensitizer for Photodynamic Tumor Therapy. ACS NANO 2016; 10:3149-3157. [PMID: 26894966 DOI: 10.1021/acsnano.5b03060] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The nanoparticulate inorganic photosensitizer β-SnWO4 is suggested for photodynamic therapy (PDT) of near-surface tumors via reiterated 5 min blue-light LED illumination. β-SnWO4 nanoparticles are obtained via water-based synthesis and comprise excellent colloidal stability under physiological conditions and high biocompatibility at low material complexity. Antitumor and antimetastatic effects were investigated with a spontaneously metastasizing (4T1 cells) orthotopic breast cancer BALB/c mouse model. Besides protamine-functionalized β-SnWO4 (23 mg/kg of body weight, in PBS buffer), chemotherapeutic doxorubicin was used as positive control (2.5 mg/kg of body weight, in PBS buffer) and physiological saline (DPBS) as a negative control. After 21 days, treatment with β-SnWO4 resulted in a clearly inhibited growth of the primary tumor (all tumor volumes below 3 cm(3)) as compared to the doxorubicin and DPBS control groups (volumes up to 6 cm(3)). Histological evaluations of lymph nodes and lungs as well as the volume of ipsilateral lymph nodes show a remarkable antimetastatic effect being similar to chemotherapeutic doxorubicin but-according to blood counts-at significantly reduced side effects. On the basis of low material complexity, high cytotoxicity under blue-light LED illumination at low dark and long-term toxicity, β-SnWO4 can be an interesting addition to PDT and the treatment of near-surface tumors, including skin cancer, esophageal/gastric/colon tumors as well as certain types of breast cancer.
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Affiliation(s)
- Carmen Seidl
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Jan Ungelenk
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT) , Engesserstraße 15, 76131 Karlsruhe, Germany
| | - Eva Zittel
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Thomas Bergfeldt
- Institute of Applied Materials Physics, Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Jonathan P Sleeman
- Medical Faculty Mannheim of the University of Heidelberg, Centre for Biomedicine and Medical Technology Mannheim (CBTM) , Ludolf-Krehl-Straße 13-17, 68167 Mannheim, Germany
| | - Ute Schepers
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Claus Feldmann
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT) , Engesserstraße 15, 76131 Karlsruhe, Germany
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Huang HC, Mallidi S, Liu J, Chiang CT, Mai Z, Goldschmidt R, Ebrahim-Zadeh N, Rizvi I, Hasan T. Photodynamic Therapy Synergizes with Irinotecan to Overcome Compensatory Mechanisms and Improve Treatment Outcomes in Pancreatic Cancer. Cancer Res 2015; 76:1066-77. [PMID: 26719532 DOI: 10.1158/0008-5472.can-15-0391] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Accepted: 12/10/2015] [Indexed: 12/18/2022]
Abstract
The ability of tumor cells to adapt to therapeutic regimens by activating alternative survival and growth pathways remains a major challenge in cancer therapy. Therefore, the most effective treatments will involve interactive strategies that target multiple nonoverlapping pathways while eliciting synergistic outcomes and minimizing systemic toxicities. Nanoliposomal irinotecan is approved by the FDA for gemcitabine-refractory metastatic pancreatic cancer. However, the full potential of irinotecan treatment is hindered by several cancer cell survival mechanisms, including ATP-binding cassette G2 (ABCG2) transporter-mediated irinotecan efflux from cells. Here, we demonstrate that benzoporphyrin derivative-based photodynamic therapy (PDT), a photochemical cytotoxic modality that activates the apoptotic pathway, reduced ABCG2 expression to increase intracellular irinotecan levels in pancreatic cancer. Moreover, we show that PDT inhibited survivin expression. Although PDT potentiated irinotecan treatment, we also demonstrate that irinotecan reduced the tumoral expression of monocarboxylate transporter 4, which was upregulated by PDT. Notably, using orthotopic xenograft models, we demonstrate that combination of single low-dose PDT and a subclinical dose of nanoliposomal irinotecan synergistically inhibited tumor growth by 70% for 3 weeks compared with 25% reduction after either monotherapies. Our findings offer new opportunities for the clinical translation of PDT and irinotecan combination therapy for effective pancreatic cancer treatment.
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Affiliation(s)
- Huang-Chiao Huang
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH) and Harvard Medical School, Boston, Massachusetts. Department of Dermatology, MGH, Boston, Massachusetts
| | - Srivalleesha Mallidi
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH) and Harvard Medical School, Boston, Massachusetts. Department of Dermatology, MGH, Boston, Massachusetts
| | - Joyce Liu
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH) and Harvard Medical School, Boston, Massachusetts. Department of Dermatology, MGH, Boston, Massachusetts
| | - Chun-Te Chiang
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH) and Harvard Medical School, Boston, Massachusetts. Department of Dermatology, MGH, Boston, Massachusetts
| | - Zhiming Mai
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH) and Harvard Medical School, Boston, Massachusetts. Department of Dermatology, MGH, Boston, Massachusetts
| | - Ruth Goldschmidt
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH) and Harvard Medical School, Boston, Massachusetts. Department of Dermatology, MGH, Boston, Massachusetts
| | - Neema Ebrahim-Zadeh
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH) and Harvard Medical School, Boston, Massachusetts. Department of Dermatology, MGH, Boston, Massachusetts
| | - Imran Rizvi
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH) and Harvard Medical School, Boston, Massachusetts. Department of Dermatology, MGH, Boston, Massachusetts
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital (MGH) and Harvard Medical School, Boston, Massachusetts. Department of Dermatology, MGH, Boston, Massachusetts. Division of Health Sciences and Technology, Harvard University and Massachusetts Institute of Technology, Cambridge, Massachusetts.
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John JV, Chung CW, Johnson RP, Jeong YI, Chung KD, Kang DH, Suh H, Chen H, Kim I. Dual Stimuli-Responsive Vesicular Nanospheres Fabricated by Lipopolymer Hybrids for Tumor-Targeted Photodynamic Therapy. Biomacromolecules 2015; 17:20-31. [PMID: 26636723 DOI: 10.1021/acs.biomac.5b01474] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Smart delivery system of photosensitizer chlorin e6 (Ce6) has been developed for targeted photodynamic therapy (PDT). Simple self-assemblies of the mixtures comprising soybean lecithin derived phosphatidylcholine (PC), phosphatidylethanolamine-poly(L-histidine)40 (PE-p(His)40), and folic acid (FA) conjugated phosphatidylethanolamine-poly(N-isopropylacrylamide)40 (PE-p(NIPAM)40-FA) in different ratios yield smart nanospheres characterized by (i) stable and uniform particle size (∼100 nm), (ii) positive surface charge, (iii) high hydrophobic drug (Ce6) loading efficiency up to 45%, (iv) covalently linked targeting moiety, (v) low cytotoxicity, and (vi) smartness showing p(His) block oriented pH and p(NIPAM) oriented temperature responsiveness. The Ce6-encapsulated vesicular nanospheres (Ce6@VNS) were used to confirm the efficiency of cellular uptake, intracellular distribution, and phototoxicity against KB tumor cells compared to free Ce6 at different temperature and pH conditions. The Ce6@VNS system showed significant photodynamic therapeutic efficiency on KB cells than free Ce6. A receptor-mediated inhibition study proved the site-specific delivery of Ce6 in targeted tumor cells.
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Affiliation(s)
- Johnson V John
- BK21 PLUS Center for Advanced Chemical Technology, Department Polymer Science and Engineering, Pusan National University , Busan 609-735, Republic of Korea
| | - Chung-Wook Chung
- Department of Gastroenterology, Pusan National University Hospital , Busan 602-739, Republic of Korea
| | - Renjith P Johnson
- BK21 PLUS Center for Advanced Chemical Technology, Department Polymer Science and Engineering, Pusan National University , Busan 609-735, Republic of Korea
| | - Young-Il Jeong
- Biomedical Research Institute, Pusan National University Hospital , Busan 602-739, Republic of Korea
| | - Kyu-Don Chung
- Department of Anesthesiology and Pain Medicine, College of Medicine, The Catholic University , Seoul 137-701, Republic of Korea
| | - Dae Hwan Kang
- Department of Gastroenterology, Pusan National University Hospital , Busan 602-739, Republic of Korea
| | - Hongsuk Suh
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University , Busan 609-735, Republic of Korea
| | - Hongyu Chen
- Division of Chemistry and Biological Chemistry, Nanyang Technological University , 21 Nanyang Link 637371 Singapore
| | - Il Kim
- BK21 PLUS Center for Advanced Chemical Technology, Department Polymer Science and Engineering, Pusan National University , Busan 609-735, Republic of Korea
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Asem H, El-Fattah AA, Nafee N, Zhao Y, Khalil L, Muhammed M, Hassan M, Kandil S. Development and biodistribution of a theranostic aluminum phthalocyanine nanophotosensitizer. Photodiagnosis Photodyn Ther 2015; 13:48-57. [PMID: 26708297 DOI: 10.1016/j.pdpdt.2015.12.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 11/28/2015] [Accepted: 12/10/2015] [Indexed: 01/05/2023]
Abstract
BACKGROUND Aluminum phthalocyanine (AlPc) is an efficient second generation photosensitizer (PS) with high fluorescence ability. Its use in photodynamic therapy (PDT) is hampered by hydrophobicity and poor biodistribution. METHODS AlPc was converted to a biocompatible nanostructure by incorporation into amphiphilic polyethylene glycol-polycaprolactone (PECL) copolymer nanoparticles, allowing efficient entrapment of the PS in the hydrophobic core, water dispersibility and biodistribution enhancement by PEG-induced surface characteristics. A series of synthesized PECL copolymers were used to prepare nanophotosensitizers with an average diameter of 66.5-99.1nm and encapsulation efficiency (EE%) of 66.4-78.0%. One formulation with favorable colloidal properties and relatively slow release over 7 days was selected for in vitro photophysical assessment and in vivo biodistribution studies in mice. RESULTS The photophysical properties of AlPc were improved by encapsulating AlPc into PECL-NPs, which showed intense fluorescence emission at 687nm and no AlPc aggregation has been induced after entrapment into the nanoparticles. Biodistribution of AlPc loaded NPs (AlPc-NPs) and free AlPc drug in mice was monitored by in vivo whole body fluorescence imaging and ex vivo organ imaging, with in vivo imaging system (IVIS). Compared to a AlPc solution in aqueous TWEEN 80 (2 w/v%), the developed nanophotosensitizer showed targeted drug delivery to lungs, liver and spleen as monitored by the intrinsic fluorescence of AlPc at different time points (1h, 24h and 48h) post iv. administration. CONCLUSIONS The AlPc-based copolymer nanoparticles developed offer potential as a single agent-multifunctional theranostic nanophotosensitizer for PDT coupled with imaging-guided drug delivery and biodistribution, and possibly also fluorescence diagnostics.
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Affiliation(s)
- Heba Asem
- Experimental Cancer Medicine (ECM), Department of Laboratory Medicine, NOVUM, Karolinska Institutet (KI), Stockholm, Sweden; Department of Materials Science, Institute of Graduate Studies and Research, University of Alexandria, Alexandria, Egypt; Functional Materials Division (FNM), Department of Materials and Nanophysics, Royal Institute of Technology (KTH), Stockholm, Sweden
| | - Ahmed Abd El-Fattah
- Department of Materials Science, Institute of Graduate Studies and Research, University of Alexandria, Alexandria, Egypt
| | - Noha Nafee
- Department of Pharmaceutics, Faculty of Pharmacy, University of Alexandria, Alexandria, Egypt
| | - Ying Zhao
- Experimental Cancer Medicine (ECM), Department of Laboratory Medicine, NOVUM, Karolinska Institutet (KI), Stockholm, Sweden; Pancreatic Cancer Research Laboratory, Department of Clinical Science, Intervention and Technology, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Labiba Khalil
- Department of Pharmaceutics, Faculty of Pharmacy, University of Alexandria, Alexandria, Egypt
| | - Mamoun Muhammed
- Functional Materials Division (FNM), Department of Materials and Nanophysics, Royal Institute of Technology (KTH), Stockholm, Sweden
| | - Moustapha Hassan
- Experimental Cancer Medicine (ECM), Department of Laboratory Medicine, NOVUM, Karolinska Institutet (KI), Stockholm, Sweden; Clinical Research Center (KFC), NOVUM, Karolinska University Hospital Huddinge, 141 86 Stockholm, Sweden.
| | - Sherif Kandil
- Department of Materials Science, Institute of Graduate Studies and Research, University of Alexandria, Alexandria, Egypt
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Mahmoud G, Jedelská J, Strehlow B, Bakowsky U. Bipolar tetraether lipids derived from thermoacidophilic archaeon Sulfolobus acidocaldarius for membrane stabilization of chlorin e6 based liposomes for photodynamic therapy. Eur J Pharm Biopharm 2015; 95:88-98. [DOI: 10.1016/j.ejpb.2015.04.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 04/06/2015] [Accepted: 04/13/2015] [Indexed: 01/08/2023]
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49
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Park JH, Ban SJ, Ahmed T, Choi HS, Yoon HE, Yoon JH, Choi HK. Development of DH-I-180-3 loaded lipid nanoparticle for photodynamic therapy. Int J Pharm 2015; 491:393-401. [DOI: 10.1016/j.ijpharm.2015.07.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 06/15/2015] [Accepted: 07/01/2015] [Indexed: 12/29/2022]
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50
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Peng PC, Hong RL, Tsai YJ, Li PT, Tsai T, Chen CT. Dual-effect liposomes encapsulated with doxorubicin and chlorin e6 augment the therapeutic effect of tumor treatment. Lasers Surg Med 2015; 47:77-87. [PMID: 25559348 DOI: 10.1002/lsm.22312] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/23/2014] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND OBJECTIVE Long circulating doxorubicin (Dox)-loaded PEGylated liposomes are clinically safer than the free form due to the significant reduction of cardiac toxicity. However, the therapeutic efficacy of the PEGylated liposome could further be improved if poor diffusivity and slow drug release of the liposome in tumor interstitium can be overcome. In this study, a dual-effect liposome triggered by photodynamic effect was developed to improve the therapeutic efficacy of Dox-loaded PEGylated liposomes. MATERIALS AND METHODS Dox and chlorin e6 (Ce6) were co-encapsulated in PEGylated liposomes (named as PL-Dox-Ce6). To induce the drug release, photodynamic effect was triggered by the light irradiation of a 662 nm diode laser. The cellular distribution of Dox and Ce6 was examined under confocal microscope. The in vitro and in vivo cytotoxicity of PL-Dox-Ce6 was determined via the colony formation assay and the synergistic C26 tumor model, respectively. RESULTS The cellular distribution of PL-Dox-Ce6 was in the cytoplasmic area; while under light irradiation, Dox was co-localized with nuclear staining positive signals. The cellular cytotoxicity of PL-Dox-Ce6 was significantly higher than the controls including liposomes encapsulating either Dox (PL-Dox) or Ce6 (PL-Ce6). The in vivo treatment efficacy of PL-Dox-Ce6 determined in the C26 tumor model reveals a significant therapeutic effect compared to that of PL-Ce6 and PL-Dox alone or in combination. CONCLUSION This study indicates that this dual-effect PEGylated liposome could provide clinical advantages in the combination regimen of photodynamic therapy and chemotherapy.
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Affiliation(s)
- Po-Chun Peng
- Department of Biochemical Science and Technology, National Taiwan University, Taipei, 106, Taiwan
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