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Zhao W, Wang L, Zhang M, Liu Z, Wu C, Pan X, Huang Z, Lu C, Quan G. Photodynamic therapy for cancer: mechanisms, photosensitizers, nanocarriers, and clinical studies. MedComm (Beijing) 2024; 5:e603. [PMID: 38911063 PMCID: PMC11193138 DOI: 10.1002/mco2.603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 05/06/2024] [Accepted: 05/10/2024] [Indexed: 06/25/2024] Open
Abstract
Photodynamic therapy (PDT) is a temporally and spatially precisely controllable, noninvasive, and potentially highly efficient method of phototherapy. The three components of PDT primarily include photosensitizers, oxygen, and light. PDT employs specific wavelengths of light to active photosensitizers at the tumor site, generating reactive oxygen species that are fatal to tumor cells. Nevertheless, traditional photosensitizers have disadvantages such as poor water solubility, severe oxygen-dependency, and low targetability, and the light is difficult to penetrate the deep tumor tissue, which remains the toughest task in the application of PDT in the clinic. Here, we systematically summarize the development and the molecular mechanisms of photosensitizers, and the challenges of PDT in tumor management, highlighting the advantages of nanocarriers-based PDT against cancer. The development of third generation photosensitizers has opened up new horizons in PDT, and the cooperation between nanocarriers and PDT has attained satisfactory achievements. Finally, the clinical studies of PDT are discussed. Overall, we present an overview and our perspective of PDT in the field of tumor management, and we believe this work will provide a new insight into tumor-based PDT.
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Affiliation(s)
- Wanchen Zhao
- State Key Laboratory of Bioactive Molecules and Druggability AssessmentJinan UniversityGuangzhouChina
- College of PharmacyJinan UniversityGuangzhouChina
| | - Liqing Wang
- State Key Laboratory of Bioactive Molecules and Druggability AssessmentJinan UniversityGuangzhouChina
- College of PharmacyJinan UniversityGuangzhouChina
| | - Meihong Zhang
- State Key Laboratory of Bioactive Molecules and Druggability AssessmentJinan UniversityGuangzhouChina
- College of PharmacyJinan UniversityGuangzhouChina
| | - Zhiqi Liu
- State Key Laboratory of Bioactive Molecules and Druggability AssessmentJinan UniversityGuangzhouChina
- College of PharmacyJinan UniversityGuangzhouChina
| | - Chuanbin Wu
- State Key Laboratory of Bioactive Molecules and Druggability AssessmentJinan UniversityGuangzhouChina
- College of PharmacyJinan UniversityGuangzhouChina
| | - Xin Pan
- School of Pharmaceutical SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Zhengwei Huang
- State Key Laboratory of Bioactive Molecules and Druggability AssessmentJinan UniversityGuangzhouChina
- College of PharmacyJinan UniversityGuangzhouChina
| | - Chao Lu
- State Key Laboratory of Bioactive Molecules and Druggability AssessmentJinan UniversityGuangzhouChina
- College of PharmacyJinan UniversityGuangzhouChina
| | - Guilan Quan
- State Key Laboratory of Bioactive Molecules and Druggability AssessmentJinan UniversityGuangzhouChina
- College of PharmacyJinan UniversityGuangzhouChina
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Ramzy A, Soliman AH, Hassanein SI, Sebak AA. Multitarget, multiagent PLGA nanoparticles for simultaneous tumor eradication and TME remodeling in a melanoma mouse model. Drug Deliv Transl Res 2024; 14:491-509. [PMID: 37612575 PMCID: PMC10761550 DOI: 10.1007/s13346-023-01413-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2023] [Indexed: 08/25/2023]
Abstract
Despite the fact that chemoimmunotherapy has emerged as a key component in the era of cancer immunotherapy, it is challenged by the complex tumor microenvironment (TME) that is jam-packed with cellular and non-cellular immunosuppressive components. The aim of this study was to design a nanoparticulate system capable of sufficiently accumulating in the tumor and spleen to mediate local and systemic immune responses, respectively. The study also aimed to remodel the immunosuppressive TME. For such reasons, multi-functional polylactic-co-glycolic acid (PLGA) nanoparticles (NPs) were engineered to simultaneously eradicate the cancer cells, silence the tumor-associated fibroblasts (TAFs), and re-educate the tumor-associated macrophages (TAMs) using doxorubicin, losartan, and metformin, respectively. These agents were also selected for their ability to tip the balance of the splenic immune cells towards immunostimulatory phenotypes. To establish TAM and TAF cultures, normal macrophages and fibroblasts were incubated with B16F10 melanoma cell (Mel)-derived secretome. Drug-loaded PLGA NPs were prepared, characterized, and tested in the target cell types. Organ distribution of fluorescein-loaded PLGA NPs was evaluated in a mouse model of melanoma. Finally, the local and systemic effects of different combination therapy programs were portrayed. The in vitro studies showed that the drug-loaded PLGA NPs could significantly ablate the immunosuppressive nature of Mel and skew TAMs and TAFs towards more favorable phenotypes. While in vivo, PLGA NPs were proven to exhibit long blood circulation time and to localize preferentially in the tumor and the spleen. The combination of either metformin or losartan with doxorubicin was superior to the monotherapy, both locally and systemically. However, the three-agent combo produced detrimental effects in the form of compromised well-being, immune depletion, and metastasis. These findings indicate the potential of TME remodeling as means to prime the tumors for successful chemoimmunotherapy. In addition, they shed light on the importance of the careful use of combination therapies and the necessity of employing dose-reduction strategies. D-NPs doxorubicin-loaded NPs, M-NPs metformin-loaded NPs, L-NPs losartan-loaded NPs, TAMs tumor-associated macrophages, TAFs tumor-associated fibroblasts, PD-L1 programmed death ligand 1, TNF-α tumor necrosis factor alpha, TGF-β transforming growth factor beta, CD206/40/86 cluster of differentiation 206/40/86, α-SMA alpha-smooth muscle actin, MMPs matrix metalloproteases.
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Affiliation(s)
- Asmaa Ramzy
- Department of Pharmaceutical Technology, Faculty of Pharmacy & Biotechnology, the German University in Cairo, New Cairo, 11511, Egypt
| | - Aya H Soliman
- Department of Pharmaceutical Biology, Faculty of Pharmacy & Biotechnology, the German University in Cairo, New Cairo, 11511, Egypt
| | - Sally I Hassanein
- Department of Biochemistry, Faculty of Pharmacy & Biotechnology, the German University in Cairo, New Cairo, 11511, Egypt
| | - Aya A Sebak
- Department of Pharmaceutical Technology, Faculty of Pharmacy & Biotechnology, the German University in Cairo, New Cairo, 11511, Egypt.
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Soliman AH, Youness RA, Sebak AA, Handoussa H. Phytochemical-derived tumor-associated macrophage remodeling strategy using Phoenix dactylifera L. boosted photodynamic therapy in melanoma via H19/iNOS/PD-L1 axis. Photodiagnosis Photodyn Ther 2023; 44:103792. [PMID: 37689125 DOI: 10.1016/j.pdpdt.2023.103792] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/11/2023]
Abstract
BACKGROUND The tumor microenvironment (TME) represents a barrier to PDT efficacy among melanoma patients. The aim of this study is to employ a novel muti-tactic TME-remodeling strategy via repolarization of tumor-associated macrophages (TAMs), the main TME immune cells in melanoma, from the pro-tumor M2 into the antitumor M1 phenotype using Phoenix dactylifera L. (date palm) in combination with PDT. METHODS Screening of different date cultivars was employed to choose extracts of selective toxicity to melanoma and TAMs, not normal macrophages. Potential extracts were then fractionated and characterized by gas chromatography-mass spectrometry (GC-MS). Finally, the efficacy and the potential molecular mechanism of the co-treatment were portrayed via quantitative real-time polymerase chain reaction (qRT-PCR) analysis. RESULTS Initial screening resulted in the selection of the two Phoenix dactylifera L. cultivars Safawi and Sukkari methanolic extracts. Sukkari showed superior capacity to revert TAM phenotype into M1 as well as more prominent upregulation of M1 markers and repression of melanoma immunosuppressive markers relative to positive control (resiquimod). Molecularly, it was shown that PDT of melanoma cells in the presence of the secretome of repolarized TAMs surpassed the monotherapy via the modulation of the H19/iNOS/PD-L1immune-regulatory axis. CONCLUSION This study highlights the potential utilization of nutraceuticals in combination with PDT in the treatment of melanoma to provide a dual activity through alleviating the immune suppressive TME and potentiating the anti-tumor responses.
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Affiliation(s)
- Aya H Soliman
- Department of Pharmaceutical Biology, Faculty of Pharmacy & Biotechnology, The German University in Cairo, Main Entrance El Tagamoa El Khames, New Cairo 11511, Egypt.
| | - Rana A Youness
- Department of Pharmaceutical Biology, Faculty of Pharmacy & Biotechnology, The German University in Cairo, Main Entrance El Tagamoa El Khames, New Cairo 11511, Egypt; Department of Biology and Biochemistry, Faculty of Biotechnology, German International University, New Administrative Capital, New Cairo 11835, Egypt
| | - Aya A Sebak
- Department of Pharmaceutical Technology, Faculty of Pharmacy & Biotechnology, The German University in Cairo, New Cairo 11511, Egypt.
| | - Heba Handoussa
- Department of Pharmaceutical Biology, Faculty of Pharmacy & Biotechnology, The German University in Cairo, Main Entrance El Tagamoa El Khames, New Cairo 11511, Egypt
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Udrea AM, Smarandache A, Dinache A, Mares C, Nistorescu S, Avram S, Staicu A. Photosensitizers-Loaded Nanocarriers for Enhancement of Photodynamic Therapy in Melanoma Treatment. Pharmaceutics 2023; 15:2124. [PMID: 37631339 PMCID: PMC10460031 DOI: 10.3390/pharmaceutics15082124] [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: 06/22/2023] [Revised: 08/04/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Malignant melanoma poses a significant global health burden. It is the most aggressive and lethal form of skin cancer, attributed to various risk factors such as UV radiation exposure, genetic modifications, chemical carcinogens, immunosuppression, and fair complexion. Photodynamic therapy is a promising minimally invasive treatment that uses light to activate a photosensitizer, resulting in the formation of reactive oxygen species, which ultimately promote cell death. When selecting photosensitizers for melanoma photodynamic therapy, the presence of melanin should be considered. Melanin absorbs visible radiation similar to most photosensitizers and has antioxidant properties, which undermines the reactive species generated in photodynamic therapy processes. These characteristics have led to further research for new photosensitizing platforms to ensure better treatment results. The development of photosensitizers has advanced with the use of nanotechnology, which plays a crucial role in enhancing solubility, optical absorption, and tumour targeting. This paper reviews the current approaches (that use the synergistic effect of different photosensitizers, nanocarriers, chemotherapeutic agents) in the photodynamic therapy of melanoma.
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Affiliation(s)
- Ana Maria Udrea
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Str., 077125 Magurele, Romania; (A.M.U.); (A.D.); (S.N.)
- Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (C.M.); (S.A.)
| | - Adriana Smarandache
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Str., 077125 Magurele, Romania; (A.M.U.); (A.D.); (S.N.)
| | - Andra Dinache
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Str., 077125 Magurele, Romania; (A.M.U.); (A.D.); (S.N.)
| | - Catalina Mares
- Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (C.M.); (S.A.)
| | - Simona Nistorescu
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Str., 077125 Magurele, Romania; (A.M.U.); (A.D.); (S.N.)
| | - Speranta Avram
- Department of Anatomy, Animal Physiology and Biophysics, Faculty of Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania; (C.M.); (S.A.)
| | - Angela Staicu
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Str., 077125 Magurele, Romania; (A.M.U.); (A.D.); (S.N.)
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Chlorophyllin sodium copper salt in hydrogel formulations: spectrophotometric stability studies and in vitro release. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-022-02653-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Valli F, García Vior MC, Ezquerra Riega SD, Roguin LP, Marino J. Melanosomal targeting via caveolin-1 dependent endocytosis mediates ZN(II) phthalocyanine phototoxic action in melanoma cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 234:112505. [PMID: 35839543 DOI: 10.1016/j.jphotobiol.2022.112505] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 06/20/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
Melanosomes have been considered crucial targets in melanoma treatments. In this study we explored the role of melanosomes in photodynamic therapy (PDT), employing the synthetic Zn(II) phthalocyanine Pc13, a potent photosensitizer that promotes melanoma cell death after irradiation. Phototoxic action is mediated by reactive oxygen species increase. The internalization mechanism of Pc13 and its consequent subcellular localization were evaluated in melanotic B16-F0 cells. Pharmacological inhibitors of dynamin or caveolae, but not of clathrin, decreased Pc13 cellular uptake and phototoxicity. Similar results were obtained when cells over-expressed dominant negative mutants of dynamin-2 and caveolin-1, indicating that Pc13 is internalized by caveolae-mediated endocytosis. Confocal microscopy analysis revealed that Pc13 targets melanosomes and damage of these structures after irradiation was demonstrated by transmission electron microscopy. Treatment of pigmented B16-F0 and WM35 melanoma cells with the melanin synthesis inhibitor phenylthiourea for 48 h led to cell depigmentation and enhanced cell death after irradiation, whereas a 3-h period of inhibition did not modify melanin content but produced a marked reduction of Pc13 phototoxicity, together with a decrease of oxidative melanin synthesis intermediates. In contrast, the effect of Pc13 in amelanotic A375 cells was not altered by phenylthiourea treatment. These results provide evidence that melanosomes have a dual role in the efficacy of PDT. While melanin antagonizes the phototoxic action of Pc13, the release of cytotoxic synthetic intermediates to cytosol after irradiation and melanosome damage is conducive to the phototoxic response. Based on these findings, we demonstrate that melanosome-targeted PDT could be an effective approach for melanoma treatment.
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Affiliation(s)
- Federico Valli
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, CONICET-UBA, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, C1113AAD Buenos Aires, Argentina
| | - María C García Vior
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Orgánica, CONICET, Junín 956, C1113AAD Buenos Aires, Argentina
| | - Sergio D Ezquerra Riega
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Orgánica, CONICET, Junín 956, C1113AAD Buenos Aires, Argentina
| | - Leonor P Roguin
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, CONICET-UBA, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, C1113AAD Buenos Aires, Argentina
| | - Julieta Marino
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, CONICET-UBA, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Junín 956, C1113AAD Buenos Aires, Argentina.
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Wang L, Wang L, Zhang Y, Zhao Z, Liu C, Li M, Liu J, Wang S, Yang D, Luo F, Yan J. LS-HB-Mediated Photodynamic Therapy Inhibits Proliferation and Induces Cell Apoptosis in Melanoma. Mol Pharm 2022; 19:2607-2619. [PMID: 35485954 DOI: 10.1021/acs.molpharmaceut.2c00302] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Chlorin e6-C-15-ethyl ester (LS-HB), a newly identified photosensitizer, was isolated from chlorin e6. The mechanism of tumor cell death induced by photodynamic therapy with LS-HB (LS-HB-PDT) is still unknown. Here, we investigated the photophysical properties of LS-HB, evaluated the antitumor effect on melanoma in vitro and in vivo, and explored its possible mechanisms. LS-HB not only has an optimal spectral band of red wavelength (660 nm) for photosensitization but also has favorable photostability. More importantly, LS-HB-PDT elicited a potent dose-dependent phototoxic effect in vitro. We discovered that LS-HB located in the mitochondria of B16F10 cells was able to generate excess reactive oxygen species, which subsequently resulted in mitochondrial membrane potential loss and induced apoptosis via caspase-9 and caspase-3 pathways. Moreover, PDT with LS-HB markedly inhibited the growth of melanoma in vivo. Therefore, LS-HB is expected to be an effective potential photosensitizer in antitumor therapy.
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Affiliation(s)
- Lanlan Wang
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Li Wang
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Yang Zhang
- Fuzhou Neuro-Psychiatric Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian 350008, China
| | - Zhiyu Zhao
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Cong Liu
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Mengqi Li
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Jiajing Liu
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Shengyu Wang
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Dong Yang
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Fanghong Luo
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Jianghua Yan
- Cancer Research Center, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
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Zhang P, Han T, Xia H, Dong L, Chen L, Lei L. Advances in Photodynamic Therapy Based on Nanotechnology and Its Application in Skin Cancer. Front Oncol 2022; 12:836397. [PMID: 35372087 PMCID: PMC8966402 DOI: 10.3389/fonc.2022.836397] [Citation(s) in RCA: 2] [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: 12/15/2021] [Accepted: 02/03/2022] [Indexed: 12/24/2022] Open
Abstract
Comprehensive cancer treatments have been widely studied. Traditional treatment methods (e.g., radiotherapy, chemotherapy), despite ablating tumors, inevitably damage normal cells and cause serious complications. Photodynamic therapy (PDT), with its low rate of trauma, accurate targeting, synergism, repeatability, has displayed great advantages in the treatment of tumors. In recent years, nanotech-based PDT has provided a new modality for cancer treatment. Direct modification of PSs by nanotechnology or the delivery of PSs by nanocarriers can improve their targeting, specificity, and PDT efficacy for tumors. In this review, we strive to provide the reader with a comprehensive overview, on various aspects of the types, characteristics, and research progress of photosensitizers and nanomaterials used in PDT. And the application progress and relative limitations of nanotech-PDT in non-melanoma skin cancer and melanoma are also summarized.
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Affiliation(s)
- Ping Zhang
- Department of Dermatology, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Han
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, China
| | - Hui Xia
- Department of Hepatobiliary Surgery, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lijie Dong
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, China
| | - Liuqing Chen
- Department of Dermatology, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Lei
- Department of Dermatology, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Development of Novel Tetrapyrrole Structure Photosensitizers for Cancer Photodynamic Therapy. Bioengineering (Basel) 2022; 9:bioengineering9020082. [PMID: 35200435 PMCID: PMC8868602 DOI: 10.3390/bioengineering9020082] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 11/18/2022] Open
Abstract
The effectiveness of photodynamic therapy (PDT) is based on the triad effects of photosensitizer (PS), molecular oxygen and visible light on malignant tumors. Such complex induces a multifactorial manner including reactive-oxygen-species-mediated damage and the killing of cells, vasculature damage of the tumor, and activation of the organism immunity. The effectiveness of PDT depends on the properties of photosensitizing drugs, their selectivity, enhanced photoproduction of reactive particles, absorption in the near infrared spectrum, and drug delivery strategies. Photosensitizers of the tetrapyrrole structure (porphyrins) are widely used in PDT because of their unique diagnostic and therapeutic functions. Nevertheless, the clinical use of the first-generation PS (sodium porfimer and hematoporphyrins) revealed difficulties, such as long-term skin photosensitivity, insufficient penetration into deep-seated tumors and incorrect localization to it. The second generation is based on different approaches of the synthesis and conjugation of porphyrin PS with biomolecules, which made it possible to approach the targeted PDT of tumors. Despite the fact that the development of the second-generation PS started about 30 years ago, these technologies are still in demand and are in intensive development, especially in the direction of improving the process of optimization split linkers responsive to input. Bioconjugation and encapsulation by targeting molecules are among the main strategies for developing of the PS synthesis. A targeted drug delivery system with the effect of increased permeability and retention by tumor cells is one of the ultimate goals of the synthesis of second-generation PS. This review presents porphyrin PS of various generations, discusses factors affecting cellular biodistribution and uptake, and indicates their role as diagnostic and therapeutic (theranostic) agents. New complexes based on porphyrin PS for photoimmunotherapy are presented, where specific antibodies are used that are chemically bound to PS, absorbing light from the near infrared part of the spectrum. Additionally, a two-photon photodynamic approach using third-generation photosensitizers for the treatment of tumors is discussed, which indicates the prospects for the further development of a promising method antitumor PDT.
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Ezzeldeen Y, Swidan S, ElMeshad A, Sebak A. Green Synthesized Honokiol Transfersomes Relieve the Immunosuppressive and Stem-Like Cell Characteristics of the Aggressive B16F10 Melanoma. Int J Nanomedicine 2021; 16:5693-5712. [PMID: 34465990 PMCID: PMC8402984 DOI: 10.2147/ijn.s314472] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/17/2021] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Honokiol (HK) is a natural bioactive compound with proven antineoplastic properties against melanoma. However, it shows very low bioavailability when administered orally. Alternatively, topical administration may offer a promising route. The objective of the current study was to fabricate HK transfersomes (HKTs) for topical treatment of melanoma. As an ultradeformable carrier system, transfersomes can overcome the physiological barriers to topical treatment of melanoma: the stratum corneum and the anomalous tumor microenvironment. Moreover, the immunomodulatory and stemness-regulation roles of HKTs were the main interest of this study. METHODS TFs were prepared using the modified scalable heating method. A three-factor, three-level Box-Behnken design was utilized for the optimization of the process and formulation variables. Intracellular uptake and cytotoxicity of HKTs were evaluated in nonactivated and stromal cell-activated B16F10 melanoma cells to investigate the influence of the complex tumor microenvironment on the efficacy of HK. Finally, ELISA and Western blot were performed to evaluate the expression levels of TGF-β and clusters of differentiation (CD47 and CD133, respectively). RESULTS The optimized formula exhibited a mean size of 190 nm, highly negative surface charge, high entrapment efficiency, and sustained release profile. HKTs showed potential to alleviate the immunosuppressive characteristics of B16F10 melanoma in vitro via downregulation of TGF-β signaling. In addition, HKTs reduced expression of the "do not eat me" signal - CD47. Moreover, HKTs possessed additional interesting potential to reduce the expression of the stem-like cell marker CD133. These outcomes were boosted upon combination with metformin, an antihyperglycemic drug recently reported to possess different functions in cancer, while combination with collagenase, an extracellular matrix-depleting enzyme, produced detrimental effects. CONCLUSION HKTs represent a promising scalable formulation for treatment of the aggressive B16F10 melanoma, which is jam-packed with immunosuppressive and stem-like cell markers.
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Affiliation(s)
- Yasmeen Ezzeldeen
- Department of Pharmaceutics, Faculty of Pharmacy, The British University in Egypt (BUE), El-Sherouk City, Cairo, 11837, Egypt
| | - Shady Swidan
- Department of Pharmaceutics, Faculty of Pharmacy, The British University in Egypt (BUE), El-Sherouk City, Cairo, 11837, Egypt
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo, 11837, Egypt
| | - Aliaa ElMeshad
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
- Department of Bio Nano, Faculty of Nanotechnology for Postgraduate Studies, Cairo University, El-Sheikh Zayed, Giza, 12588, Egypt
| | - Aya Sebak
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), Cairo, Egypt
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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: 6] [Impact Index Per Article: 2.0] [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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Pierre MBR. Nanocarriers for Photodynamic Therapy Intended to Cutaneous Tumors. Curr Drug Targets 2021; 22:1090-1107. [PMID: 33397257 DOI: 10.2174/1389450122999210101230743] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/30/2020] [Accepted: 10/23/2020] [Indexed: 11/22/2022]
Abstract
Photodynamic Therapy (PDT) is a therapeutic modality used for several malignant and premalignant skin disorders, including Bowen's disease skin cancers and Superficial Basal Cell Carcinoma (BCC). Several photosensitizers (PSs) have been explored for tumor destruction of skin cancers, after their activation by a light source of appropriate wavelength. Topical release of PSs avoids prolonged photosensitization reactions associated with systemic administration; however, its clinical usefulness is influenced by its poor tissue penetration and the stability of the active agent. Nanotechnology-based drug delivery systems are promising tool to enhance the efficiency for PDT of cancer. This review focuses on PSs encapsulated in nanocarriers explored for PDT of skin tumors.
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Affiliation(s)
- Maria B R Pierre
- Universidade Federal do Rio de Janeiro (UFRJ)- Faculdade de Farmacia- Av, Brigadeiro Trompowsky, s/n. CEP Rio de Janeiro - RJ, 21941-901, Brazil
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Vicente-Escobar JO, García-Sánchez MA, González F, Cipagauta-Díaz S, Estrella González A. A spectroscopic and molecular docking study of interactions of tetracarboxyphenyl porphyrin and chlorin e6 with bovine serum albumin. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01670-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Jung E, Shim I, An J, Ji MS, Jangili P, Chi SG, Kim JS. Phenylthiourea-Conjugated BODIPY as an Efficient Photosensitizer for Tyrosinase-Positive Melanoma-Targeted Photodynamic Therapy. ACS APPLIED BIO MATERIALS 2021; 4:2120-2127. [PMID: 35014340 DOI: 10.1021/acsabm.0c01322] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Melanoma is the most threatening form of metastatic skin cancer that develops from melanocytes and causes a large majority of deaths due to poor therapeutic prognosis. It has significant limitations in treatment because it shows great resistance to chemotherapy, radiotherapy, and other therapeutic methods. A noninvasive and clinically accepted therapeutic modality, photodynamic therapy (PDT), is a promising treatment option, but it is limitedly applied for melanoma skin cancer treatment. This is because most of the photosensitizers are unlikely to be expected to have a remarkable effect on melanoma due to drug efflux by melanin pigmentation and intrinsic antioxidant defense mechanisms. Moreover, melanin is a dominant absorber in the spectral region of 500-600 nm that can cause the decreased photoreaction efficiency of photosensitizers. Herein, to overcome these drawbacks, we have developed a phenylthiourea-conjugated BODIPY photosensitizer (PTUBDP) for tyrosinase-positive melanoma-targeted PDT. In light of our results, it exhibited an enhanced cytotoxic efficacy compared to BDP, a parallel PDT agent that absence of phenylthiourea unit. PTUBDP shows outstanding effects of increased oxidative stress by an enhanced cellular uptake of the tyrosinase positive melanoma cell line (B16F10). This work presents increased therapeutic efficacy through the combined therapeutic approach, enabling enhanced reactive oxygen species (ROS) generation as well as overcoming the critical limitations of melanoma.
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Affiliation(s)
- Eugeine Jung
- Department of Chemistry, Korea University, Seoul 02841, Korea
- Department of Life Sciences, Korea University, Seoul 02841, Korea
| | - Inseob Shim
- Department of Chemistry, Korea University, Seoul 02841, Korea
| | - Jusung An
- Department of Chemistry, Korea University, Seoul 02841, Korea
| | - Myung Sun Ji
- Department of Chemistry, Korea University, Seoul 02841, Korea
| | | | - Sung-Gil Chi
- Department of Life Sciences, Korea University, Seoul 02841, Korea
| | - Jong Seung Kim
- Department of Chemistry, Korea University, Seoul 02841, Korea
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D'Alessandro S, Priefer R. Non-porphyrin dyes used as photosensitizers in photodynamic therapy. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101979] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Sebak AA, Gomaa IEO, ElMeshad AN, Farag MH, Breitinger U, Breitinger HG, AbdelKader MH. Distinct Proteins in Protein Corona of Nanoparticles Represent a Promising Venue for Endogenous Targeting - Part I: In vitro Release and Intracellular Uptake Perspective. Int J Nanomedicine 2020; 15:8845-8862. [PMID: 33204091 PMCID: PMC7667594 DOI: 10.2147/ijn.s273713] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 10/13/2020] [Indexed: 12/14/2022] Open
Abstract
Introduction Protein corona (PC) deposition on nanoparticles (NPs) in biological systems contributes to a great extent to NPs' fates; their targeting potential, the interaction with different biological systems and the subsequent functions. PC - when properly tuned - can serve as a potential avenue for optimization of NPs' use in cancer therapy. Methods Poly-lactic co-glycolic acid (PLGA)-based NPs exhibiting different physicochemical properties were fabricated and characterized. The PC makeup of these NPs were qualitatively and quantitatively analyzed by Western blot and Bradford assay, respectively. The effect of PC on the release of NPs' cargos and the intracellular uptake into B16F10 melanoma cells has been studied. Results The composition of NPs (polymeric PLGA NPs vs lipid-polymer hybrid NPs) and the conjugation of an active targeting ligand (cRGDyk peptide) represented the major determinants of the PC makeup of NPs. The in vitro release of the loaded cargos from the NPs depended on the PC and the presence of serum proteins in the release medium. Higher cumulative release has been recorded in the presence of proteins in the case of peptide conjugated NPs, cNPs, while the unconjugated formulations, uNPs, showed an opposite pattern. NPs intracellular uptake studies revealed important roles of distinct serum and cellular proteins on the extent of NPs' accumulation in melanoma cells. For example, the abundance of vitronectin (VN) protein from serum has been positively related to the intracellular accumulation of the NPs. Conclusion Careful engineering of nanocarriers can modulate the recruitment of some proteins suggesting a potential use for achieving endogenous targeting to overcome the current limitations of targeted delivery of chemotherapeutic agents.
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Affiliation(s)
- Aya Ahmed Sebak
- Pharmaceutical Technology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), New Cairo City, Egypt
| | - Iman Emam Omar Gomaa
- Biochemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Aliaa Nabil ElMeshad
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Giza, Egypt
| | - Mahmoud Hussien Farag
- Pharmaceutical Technology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), New Cairo City, Egypt
| | - Ulrike Breitinger
- Biochemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), New Cairo City, Egypt
| | - Hans-Georg Breitinger
- Biochemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), New Cairo City, Egypt
| | - Mahmoud Hashem AbdelKader
- National Institute of Laser Enhanced Sciences (NILES), Cairo University (CU), Giza, Egypt.,European University in Egypt (EUE), New Administrative Capital, Cairo, Egypt
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A Naturally Derived Carrier for Photodynamic Treatment of Squamous Cell Carcinoma: In Vitro and In Vivo Models. Pharmaceutics 2020; 12:pharmaceutics12060494. [PMID: 32485800 PMCID: PMC7355629 DOI: 10.3390/pharmaceutics12060494] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 11/17/2022] Open
Abstract
Photodynamic therapy (PDT) is a non-invasive treatment strategy that includes the combination of three components-a photosensitizer, a light source, and tissue oxygen. PDT can be used for the treatment of skin diseases such as squamous cell carcinoma. The photosensitizer used in this study is the naturally derived chlorophyll derivative chlorin e6 (Ce6), which was encapsulated in ultradeformable ethosomes. Singlet oxygen production by Ce6 upon laser light irradiation was not significantly affected by encapsulation into ethosomes. PDT of squamous cell carcinoma cells treated with Ce6 ethosomes triggered increased mitochondrial superoxide levels and increased caspase 3/7 activity, resulting in concentration- and light-dose-dependent cytotoxicity. Ce6 ethosomes showed good penetration into 3D squamous cell carcinoma spheroids, which upon laser light irradiation exhibited reduced size, proliferation, and viability. The PDT effect of Ce6 ethosomes was specific and showed higher cytotoxicity against squamous cell carcinoma spheroids compared to normal skin fibroblast spheroids. In addition, PDT treatment of squamous cell carcinoma xenografts grown on chorioallantoic membranes of chick eggs (CAM) exhibited reduced expression of Ki-67 proliferation marker and increased terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL) staining, indicating reduced proliferation and activation of apoptosis, respectively. The results demonstrate that Ce6-loaded ethosomes represent a convenient formulation for photodynamic treatment of squamous cell carcinoma.
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Li XY, Tan LC, Dong LW, Zhang WQ, Shen XX, Lu X, Zheng H, Lu YG. Susceptibility and Resistance Mechanisms During Photodynamic Therapy of Melanoma. Front Oncol 2020; 10:597. [PMID: 32528867 PMCID: PMC7247862 DOI: 10.3389/fonc.2020.00597] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 04/01/2020] [Indexed: 12/19/2022] Open
Abstract
Melanoma is the most aggressive malignant skin tumor and arises from melanocytes. The resistance of melanoma cells to various treatments results in rapid tumor growth and high mortality. As a local therapeutic modality, photodynamic therapy has been successfully applied for clinical treatment of skin diseases. Photodynamic therapy is a relatively new treatment method for various types of malignant tumors in humans and, compared to conventional treatment methods, has fewer side effects, and is more accurate and non-invasive. Although several in vivo and in vitro studies have shown encouraging results regarding the potential benefits of photodynamic therapy as an adjuvant treatment for melanoma, its clinical application remains limited owing to its relative inefficiency. This review article discusses the use of photodynamic therapy in melanoma treatment as well as the latest progress made in deciphering the mechanism of tolerance. Lastly, potential targets are identified that may improve photodynamic therapy against melanoma cells.
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Affiliation(s)
- Xin-Ying Li
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Liu-Chang Tan
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Li-Wen Dong
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Wan-Qi Zhang
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Xiao-Xiao Shen
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Xiao Lu
- Department of Thoracic Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Hong Zheng
- Department of Thoracic Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Yuan-Gang Lu
- Department of Plastic Surgery, Daping Hospital, Army Medical University, Chongqing, China
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Yu Y, Wang B, Guo C, Zhao F, Chen D. Protoporphyrin IX-loaded laminarin nanoparticles for anticancer treatment, their cellular behavior, ROS detection, and animal studies. NANOSCALE RESEARCH LETTERS 2019; 14:316. [PMID: 31535237 PMCID: PMC6751237 DOI: 10.1186/s11671-019-3138-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 08/26/2019] [Indexed: 05/06/2023]
Abstract
Laminarin conjugate-based nano-scaled particles were in this study proposed as a delivery system for protoporphyrin IX (Pp IX) in photodynamic therapy (PDT) of human breast cancer cells (MCF-7). Hematin-Laminarin-Dithiodipropionic Acid-MGK, named as HLDM, was an amphiphilic carrier material with dual pH/redox sensitive that could be used to load hydrophobic drug to improve their solubility and enhance biocompatibility. Therefore, we combined photosensitizer (Pp IX) with HLDM to fabricate a novel nano-micelles, herein called Pp IX-loaded HLDM micelles. The Pp IX-loaded HLDM micelles were 149.3 ± 35 nm sized in neutral water. Phototoxicity, in vitro PDT effect, and dual sensibility to pH and redox microenvironment of Pp IX-loaded HLDM micelles were examined at different concentrations by using MCF-7 human breast cancer cells. The experiments on phototoxicity and reactive oxygen species (ROS) production proved that the micelles could produce PDT to kill the cancer cells with a certain wavelength light. The apoptosis experiment indicated that the micelles could cause nuclear damage. In vivo PDT effect of the micelles was studied by constructing the tumor-bearing nude mouse model of MCF-7 cells. In vivo studies showed that the Pp IX-loaded HLDM micelles could induce remarkable anti-tumor effect. A promising laminarin-based nanomedicine platform acts as a new drug delivery system to enhance the uptake, accumulation, and PDT efficacy of Pp IX in vitro and in vivo.
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Affiliation(s)
- Yueming Yu
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, 264005, China
| | - Bingjie Wang
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, 264005, China
| | - Chunjing Guo
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, 264005, China
| | - Feng Zhao
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, 264005, China
| | - Daquan Chen
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, 264005, China.
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Nasr S, Rady M, Gomaa I, Syrovets T, Simmet T, Fayad W, Abdel-Kader M. Ethosomes and lipid-coated chitosan nanocarriers for skin delivery of a chlorophyll derivative: A potential treatment of squamous cell carcinoma by photodynamic therapy. Int J Pharm 2019; 568:118528. [DOI: 10.1016/j.ijpharm.2019.118528] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 07/01/2019] [Accepted: 07/14/2019] [Indexed: 11/28/2022]
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Rady M, Gomaa I, Afifi N, Abdel-Kader M. Dermal delivery of Fe-chlorophyllin via ultradeformable nanovesicles for photodynamic therapy in melanoma animal model. Int J Pharm 2018; 548:480-490. [DOI: 10.1016/j.ijpharm.2018.06.057] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/22/2018] [Accepted: 06/26/2018] [Indexed: 12/23/2022]
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Targeted photodynamic-induced singlet oxygen production by peptide-conjugated biodegradable nanoparticles for treatment of skin melanoma. Photodiagnosis Photodyn Ther 2018; 23:181-189. [DOI: 10.1016/j.pdpdt.2018.05.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 05/15/2018] [Accepted: 05/31/2018] [Indexed: 01/30/2023]
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Mishra H, Mishra PK, Ekielski A, Jaggi M, Iqbal Z, Talegaonkar S. Melanoma treatment: from conventional to nanotechnology. J Cancer Res Clin Oncol 2018; 144:2283-2302. [DOI: 10.1007/s00432-018-2726-1] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 07/30/2018] [Indexed: 11/24/2022]
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Simioni AR, de Jesus PCC, Tedesco AC. Layer-by-layer hollow photosensitizer microcapsule design via a manganese carbonate hard template for photodynamic therapy in cells. Photodiagnosis Photodyn Ther 2018; 22:169-177. [PMID: 29684688 DOI: 10.1016/j.pdpdt.2018.04.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Revised: 04/02/2018] [Accepted: 04/18/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Microcapsules fabricated using layer-by-layer self-assembly have unique properties, making them attractive for drug delivery applications. The technique has been improved, allowing the deposition of multiple layers of oppositely charged polyelectrolytes on spherical, colloidal templates. These templates can be decomposed by coating multiple layers, resulting in hollow shells. In this paper, we describe a novel drug delivery system for loading photosensitizer drugs into hollow multilayered microcapsules for photoprocess applications. METHODS Manganese carbonate particles were prepared by mixing NH4HCO3 and MnSO4 and performing consecutive polyelectrolyte adsorption processes onto these templates using poly-(sodium 4-styrene sulfonate) and poly-(allylamine hydrocholoride). A photosensitizer was also incorporated into the layers. Hollow spheres were fabricated by removing the cores in the acidic solution. The hollow, multilayered microcapsules were studied by scanning electron microscopy, steady-state, and time-resolved techniques. Their biological activity was evaluated in vitro with cancer cells using a conventional MTT assay. RESULTS The synthesized CaCO3 microparticles were uniform, non-aggregated, and highly porous spheres. The phthalocyanine derivatives loaded in the microcapsules maintained their photophysical behaviour after encapsulation. The spectroscopic results presented here showed excellent photophysical behaviour of the studied drug. We observed a desirable increase in singlet oxygen production, which is favourable for the PDT protocol. Cell viability after treatment was determined and the proposed microcapsules caused 80% cell death compared to the control. CONCLUSIONS The results demonstrate that photosensitizer adsorption into the CaCO3 microparticle voids together with the layer-by-layer assembly of biopolymers provide a method for the fabrication of biocompatible microcapsules for use as biomaterials.
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Affiliation(s)
- Andreza Ribeiro Simioni
- Organic Synthesis Laboratory, Research and Development Institute - IPD, Vale do Paraíba University, Av. Shishima Hifumi 2911, CEP 12244-000, São José dos Campos, Brazil
| | - Priscila Costa Carvalho de Jesus
- Department of Chemistry, Center of Nanotechnology and Tissue Engineering Photobiology and Photomedicine Research Group, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, Av. dos Bandeirantes 3900, 14040-901, Vila Monte Alegre, University of São Paulo, Brazil
| | - Antonio Claudio Tedesco
- Department of Chemistry, Center of Nanotechnology and Tissue Engineering Photobiology and Photomedicine Research Group, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, Av. dos Bandeirantes 3900, 14040-901, Vila Monte Alegre, University of São Paulo, Brazil.
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